Electrical Engineering and Electromechanics

|Електротехніка та Eлектромеханіка (IEЕ)

Guestbook – June 2022

 

·        #113

·        Koliev EM-211 (Mikhailuk) (Thursday, 30 June 2022 09:17)

"Fundamentals of metrology and electrical measurements"

Metrology is the science of measuring physical quantities, methods and means of ensuring their unity and ways to achieve the required accuracy. The main tasks of metrology are the establishment of units of physical quantities, state standards and exemplary measuring instruments, the development of theory, methods and means of measurement and control, ensuring the uniformity of measurements and uniform measuring instruments, the development of methods for assessing errors, the state of measuring and control instruments, as well as the transfer of unit sizes from standards or exemplary measuring instruments to working measuring instruments. Therefore, Metrology research is particularly interesting for finding improvements or new projects that will help improve productivity and the quality of human life.

https://voca.ro/168Ex2qiGh8e

·        #112

Andreikova Irene to Kostya Diupin, ES-211 (Thursday, 30 June 2022 08:45)

Your exam score is 90.

·        #111

Andreikova Irene to Troian EM-211 (Thursday, 30 June 2022 08:31)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 5
2. Microprocessor devices
3. Text Summarizing unit 5
Good Luck!

·        #110

Andreikova Irene to Sitinskyi EM-211 (Thursday, 30 June 2022 08:30)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 8
2. Automatic Control Theory
3. Text Summarizing unit 8
Good Luck!

·        #109

Andreikova Irene to Koliev EM-211 (Thursday, 30 June 2022 08:29)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 2
2. Fundamentals of metrology and electrical measurements
3. Text Summarizing unit 2
Good Luck!

·        #108

Andreikova Irene to Kovalchuk EM-211 (Thursday, 30 June 2022 08:28)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 6
2. Engineering Graphics
3. Text Summarizing unit 6
Good Luck!

·        #107

Andreikova Irene to Kiliyan EM-211 (Thursday, 30 June 2022 08:27)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 3
2. Electrical equipment
3. Text Summarizing unit 3
Good Luck!

·        #106

Andreikova Irene to Ivanov EM-211 (Thursday, 30 June 2022 08:25)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 7
2. Applied Mechanics
3. Text Summarizing unit 7
Good Luck!

·        #105

Andreikova Irene to Demchenko EM-211 (Thursday, 30 June 2022 08:24)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 4
2. Electric drive control systems
3. Text Summarizing unit 4
Good Luck!

·        #104

Kostya Diupin, ES-211 (Andreikova) (Wednesday, 29 June 2022 18:49)

"Engineering Graphics"

Engineering graphics is a set of graphic communication techniques that engineers, architects, and designers use to express ideas and concepts, or graphical expressions.
Studying engineering graphics is important for design process. These studies cover many areas: mechanical engineering, civil engineering, chemical engineering, electrical and electronic engineering, automation, robotics and architecture.
Understanding the graphic language helps to find solutions for improvement and creation of projects.
The correct interpretation of the graphic language is the key to developing skills in the preparation of an engineer and architect. Therefore, research on the topic of engineering graphics is especially interesting for finding improvements or new projects that will help improve the productivity and quality life of human.
https://voca.ro/1if0BQvSkc81

link to article: https://www.mdpi.com/journal/symmetry/special_issues/Advances_Engingeering_Graphics_Imrpoverments_New_Proposals

·        #103

Andreikova Irene to Chervoniuk I. ES-211 (Wednesday, 29 June 2022)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 9
2. Electrical machinery
3. Text Summarizing unit 9

Good Luck!

·        #102

Andreikova Irene to Melnik A. ES-211 (Wednesday, 29 June 2022 08:37)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 5
2. Microprocessor devices
3. Text Summarizing unit 5

Good Luck!

·        #101

Andreikova Irene to Liumanov S. ES-211 (Wednesday, 29 June 2022 08:36)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 8
2. Automatic Control Theory
3. Text Summarizing unit 8

Good Luck!

·        #100

Andreikova Irene to Kuzovenkov P. ES-211 (Wednesday, 29 June 2022 08:36)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 2
2. Fundamentals of metrology and electrical measurements
3. Text Summarizing unit 2

Good Luck!

·        #99

Andreikova Irene to Diupin K. ES-211 (Wednesday, 29 June 2022 08:35)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 6
2. Engineering Graphics
3. Text Summarizing unit 6

Good Luck!

·        #98

Andreikova Irene to Danyliuk V. ES-211 (Wednesday, 29 June 2022 08:34)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 1
2. Theory of electric drive
3. Text Summarizing unit 1

Good Luck!

·        #97

Andreikova Irene to Gomziak A. ES-211 (Wednesday, 29 June 2022 08:34)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 3
2. Electrical equipment
3. Text Summarizing unit 3
Good Luck!

·        #96

Andreikova Irene to Glushchenko M. ES-211 (Wednesday, 29 June 2022 08:33)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 7
2. Applied Mechanics
3. Text Summarizing unit 7

Good Luck!

·        #95

Andreikova Irene to Vasylieva V. ES-211 (Wednesday, 29 June 2022 08:33)

Good morning. Today you pass the exam. Here is the task:
1. Final test paper 4
2. Electric drive control systems
3. Text Summarizing unit 4
Good Luck!

·        #94

Diachenko to Vytvytska Katerina PC-211 (Wednesday, 22 June 2022 08:56)

Your score is 100

·        #93

Diachenko to Yaroshevskiy Maksim PC-211 (Wednesday, 22 June 2022 08:55)

Your score is 97

·        #92

Yaroshevskiy Maksim PC-211 (Diachenko) (Wednesday, 22 June 2022 08:32)

1. Final test paper 2 - 100%
2. Exam topic - Alternating Current Motor
The name alternative current electric motors comes from the fact that they convert alternating current electrical energy into mechanical energy in motor mode and vice versa in generator mode. They are now becoming more widespread and are gradually replacing DC machines. They can be found in cars and hoovers, in sophisticated machines and in ordinary children's toys. There are more and more of these engines every day, because they are cheaper to manufacture and easier to operate. AC machines are divided into three main types: asynchronous, synchronous and commutator machines. Every electric motor has the property of reversibility: every electric motor can operate in generator mode and vice versa.

https://voca.ro/1bKNGPJJBfvl

Summarizing unit 2 - 100%

·        #91

Vytvytska Katerina PC-211 (Diachenko) (Wednesday, 22 June 2022 08:28)

1. Final test paper 5 - 100%
2. Exam topic "Electrical systems"
As you know, modern people cannot live without gadgets, appliances for everyday life and electricity. The variety of these devices is astonishing in number. But what they all have in common is that they all work with electricity. Electrical systems are a combination of power plants, power transmission lines, converter stations and electrical consumers all working in parallel. They are actually used in every area of human activity. System operation is characterised by a mode - a set of processes that determine at any given time the values of powers, voltages, currents, frequencies and other quantities that change during system operation for further data processing.

https://voca.ro/1gFueRi52yZ1

3. Summarizing unit 5 - 100%

·        #90

Diachenko to Yaroshevskiy ПС 211 (Wednesday, 22 June 2022 07:20)

Morning. Today you pass the exam Here is the task
1. Final test paper 2
2. Topic Alternating Current Motor
3. Text Summarizing unit 2

Good Luck!

·        #89

Diachenko to Vitvitskaya ПС 211 (Wednesday, 22 June 2022 07:15)

Morning. Today you pass the exam Here is the task
1. Final test paper 5
2. Topic Electrical Systems
3. Text Summarizing unit 5

Good Luck!

·        #88

Duvanskaya I.F. Savluk A.O. from Foreign Languages Department (Monday, 20 June 2022 19:31)

To Shevchuk D. , LLN-211.Your total score is 60.

·        #87

Duvanskaya, Savluk A.O. from Foreign Languages Department (Monday, 20 June 2022 09:33)

To Ptashnik Max LLN-211. Max,thank you for your exam topic. It is not bad but there were mispronounced words in your voice message: renewable, include, above-mentioned, characteristics, region, particular, Iceland.I have seen your tasks 1 and 3. Considering all three types of work, your total score is 75.

·        #86

Duvanskaya I.F., Savluk A.O. from Foreign Languages Department (Monday, 20 June 2022 08:29)

To Vlad Kovalenko LLN-211. Vlad, thank you for your exam topic but it is too short and contains only 74 words instead of 100.Pay attention to the first sentence: Today Ihave read the article.I have seen your tasks 1 and 3 with an excellent result. Considering all three types of work, your total score is 75.

·        #85

Duvanskaya I.F., Savluk A.O. from Foreign Languages Department (Monday, 20 June 2022 08:20)

To Dudnik Rostyslav LLN-211. Rostyslav, I have seen your tasks 1 and 3 with an excellent result as to your review, it is informative enough but there were mispronounced words in your voice message.Your total score is 85.

·        #84

Vlad Kovalenko LLN-211 (Duvanskaya) (Monday, 20 June 2022 08:15)

Today I read the article about electrical systems. Electrical system is a network of electrical components deployed to supply, transfer, and use electric power. The electrical grid can be broadly divided into the generators, and the distribution system that feeds the power to nearby homes and industries.The majority of these systems rely upon three-phase AC power— the most common in the world. And the electrical system feeds all electrical appliances and the entire industry.

https://voca.ro/1dRfWlzGB4dt

·        #83

Ptashnik Max LLN-211 (Duvanskaya I.F) (Monday, 20 June 2022 07:50)

Non-conventional (alternative) sources of renewable energy include:
a) Geothermal energy;
b) Solar energy;
c) Wind energy;
d) Energy obtained by different ways from domestic and industrial waste;
e) Energy derived from biomass.
In Western Europe and the United States all the above-mentioned types of energy sources are used in the national asstates. Depending on the characteristics of the region in the structure of alternative energy use prevails one or another source. In particular, Iceland, Denmark and several U.S. states widely use the practice of obtaining heat from geothermal sources.
https://voca.ro/151Uqbt7yvBH

·        #82

Dudnik Rostyslav LLN-211 (Duvanskaya I.F) (Monday, 20 June 2022 07:47)

The main functions of electronic starters and variable speed drives.
To write this work, I was inspired by the article
"Electronic starters and variable speed drives" (https://www.se.com/us/en/download/document/ECT208/)
The most common way of starting asynchronous motors is directly on the line supply. This technique is often suitable for a wide variety of machines. However, it sometimes brings with it restrictions that can be inconvenient for some applications, and even incompatible with the functions required from the machine: - The inrush current on start-up can interfere with the operation of other devices connected on the same line supply - Mechanical shocks during starting that cannot be tolerated by the machine or may endanger the comfort and safety of users - Acceleration and deceleration cannot be controlled - Speed cannot be controlled Starters and variable speed drives are able to counter these problems.
I consider this information very important and fundamental
https://voca.ro/1f48aEvQfFRZ

·        #81

Duvanskaya I.F., Savluk A.O. from Foreign Languages Department (Monday, 20 June 2022 07:13)

To Dudnik R. , LLN-211
1.Specialty Article and Text Summarizing- Unit 3.
2. The main functions of electronic starters and variable speed drives.
( comment ) 100 words.
3. Final Test paper 3.

To Kovalenko V., LLN-211.
1.Specialty Article and Text Summarizing- Unit 4.
2. Electrical systems. ( comment ) 100 words.
3. Final Test paper 4

To Ptashnik M., LLN-211.
1.Specialty Article and Text Summarizing- Unit 5.
2. Unconventional and renewable sources of energy. ( comment ) 100 words.
3. Final Test paper 5.

To Shevchuk D. , LLN-211.
1.Specialty Article and Text Summarizing- Unit 6.
2. Alternating current motor.
3. Final Test paper 6.

·        #80

Duvanskaya I.F, Savlk A.O. from Foreign Languages Department (Monday, 20 June 2022 07:02)

To Dudnik R. , LLN-211
1.Specialty Article and Text Summarizing- Unit 3.
2. The main functions of electronic starters and variable speed drives.
( comment ) 100 words.
3. Final Test paper 3.

To Kovalenko V., LLN-211.
1.Specialty Article and Text Summarizing- Unit 4.
2. Electrical systems. ( comment ) 100 words.
3. Final Test paper 4

To Ptashnik M., LLN-211.
1.Specialty Article and Text Summarizing- Unit 5.
2. Unconventional and renewable sources of energy. ( comment ) 100 words.
3. Final Test paper 5.

To Shevchuk D. , LLN-211.
1.Specialty Article and Text Summarizing- Unit 6.
2. Alternating current motor.
3. Final Test paper 6.

 

·        #79

Osolinskyi Nikita ES-211 (Andreikova) (Friday, 17 June 2022 10:04)

Microcomputers in the stepping motor control system

Today i read an article about microcomputers in the stepping motor control system. The system design includes hardware design and software design and the circuit design contains keyboard input, LED display, the state display of light emitting diode and alarm. The keyboard can be used to input operation parameters, start and close system. The motor drives the load to process preconcerted work by the keyboard input so as to carry out point-position and speed control. The application of display circuit can show the input data of step motor and running state. The system can carry out the above function well by testing.

https://voca.ro/12BceYOaEux2

·        #78

Osolinskyi Nikita ES-211 (Andreikova) (Friday, 17 June 2022 07:53)

Alternating current motor

Today I read an article about alternating current motor. An alternating current motor is an electric motor driven by an alternating current. The AC motor commonly consists of two basic parts, an outside stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft producing a second rotating magnetic field. The rotor magnetic field may be produced by permanent magnets, reluctance saliency, or DC or AC electrical windings. Alternating current technology was rooted in Michael Faraday's and Joseph Henry's 1830–31 discovery that a changing magnetic field can induce an electric current in a circuit.

https://voca.ro/1j1NUmA1bUUp

·        #77

Bersenova Nikolina ES-211 ( Andreikova) (Friday, 17 June 2022 07:42)

Geothermal energy

The topic of my review is geothermal energy.

Geothermal energy is understood as industrial production of energy, in particular electricity, from hot springs, thermal groundwater. The main source of this geothermal energy is a constant flow of heat from the hot bowels, directed to the Earth's surface. The Earth's crust receives heat as a result of friction of the nucleus, radioactive decay of elements, chemical reactions.

Geothermal energy is widely used for heat supply and electricity generation. In my opinion, this type of energy production is very intensive and requires proper attention.

https://voca.ro/1ffrCvUqy9zU

·        #76

Bersenova Nikolina ES-211 ( Andreikova) (Friday, 17 June 2022 07:42)

Bioenergy

What I'm going to talk about today is bioenergy.

Bioenergy is a branch of electricity based on the use of biofuels produced from biomass. Biomass includes all plant and animal-produced substances. Today, the production of electricity and heat from solid biomass is carried out mainly by combustion in solid fuel boilers, with the production of high pressure steam.

Biomass plays a significant role in the energy balances of industrialized countries.This is proof that the direction is progressive. Because in this way the waste does not pollute the environment.

https://voca.ro/12NccjDkP1FW

·        #75

Drozhzhina I to Yaroshevskiy Maksim PC-211 (Tuesday, 14 June 2022 13:19)

Thank you, I’m waiting for your module tests

·        #74

Yaroshevskiy Maksim PC-211 (Drozhzhina) (Tuesday, 14 June 2022 09:35)

Долг за 31.05

in line with
Apparently, Saturn is in line with Neptune.
https://voca.ro/1jL501gwRsTP

further validation
A further validation process should be performed by the secretariat every four years.
https://voca.ro/1hD9cLeexw4r

generally accepted
Interestingly, reliance on the draft articles is not restricted to generally accepted provisions.
https://voca.ro/1RFRm6zaGUpF

https://techxplore.com/news/2022-03-venice-biennale-remotely-icub3-robot.html
https://voca.ro/178r3InuBD8I

Today I have read an article that talks about a new technology, thanks to which people will be able to remotely attend exhibitions, presentations, and at the same time they will be able to interact with objects located there. To do this, the user will have to wear a helmet of virtual or augmented reality, and gloves that will allow him to control the robot. Thus, sitting on the couch in our house, we will be able to visit museums, galleries, exhibitions and presentations. I am sure that very soon this technology will become a reality for us.

https://techxplore.com/news/2022-03-waymo-autonomous-vehicle-san-francisco.html
https://voca.ro/160IDQyqrP7l

Cars with autopilot have not surprised the average user for a long time. This article is about Waymo, which is developing a fully autonomous car that does not need a driver. All the user has to do is choose a destination, get comfortable in their chair, and enjoy the ride. The machine will do the rest for you. Not so long ago, the company used to transport only its employees and testers, but today this technology is available to everyone. I hope soon such cars will appear in a taxi, and will be available to everyone.

·        #73

Yaroshevskiy Maksim PC-211 (Drozhzhina) (Tuesday, 14 June 2022 09:34)

Долг за 17.05

predetermined course
Many of those adjustments do not follow a predetermined course of action.
https://voca.ro/14lHmj2HFnCm

product development
We also engage in customer-specific product development.
https://voca.ro/1autHB2BVkuv

as follows
Perhaps we can settle the issue as follows.
https://voca.ro/1gvTfwLK9CCq

https://techxplore.com/news/2022-04-solar-cell-sun.html
https://voca.ro/1lnWFH7BHqYa

Today I have read an article about new photovoltaic cells installed in a solar panel that can generate energy not only during the day but also at night. Researchers at Stanford University have been able to develop a cell that harvests energy from the environment throughout the day and night, eliminating the need for batteries entirely. So far, this technology is underdeveloped, and as the developer Shanhui Fan states, this development was intended for something completely different. Now such a solar panel can only light a light-emitting diode, but in the future the development of this technology, it will be possible to achieve much more

https://techxplore.com/news/2022-04-3d-quality-machines.html
https://voca.ro/1dVsyzvxjpMr

Today I have read an article that talks about the technology of data exchange between devices, and in particular between 3D printers. Researchers have come up with a new way to improve the quality of 3D printing. To do this, they networked several 3D printers and then made the machines share precision machining data, which reduced the time needed to prepare and calibrate them. Thus, the printers compared the print settings with other machines, as a result of which they will correct their settings right during printing. I am sure that soon this technology will be used not only in this industry.

·        #72

Yaroshevskiy Maksim PC-211 (Drozhzhina) (Tuesday, 14 June 2022 09:33)

Долг за 03.05

consistent with
Those injuries are not consistent with self-defense
https://voca.ro/11vZlH5H8HXp

correctly interpret
The lack of completeness in the reporting makes it difficult to correctly interpret the numeric data reported
https://voca.ro/1fFWWKaxfj2k

comparisons revealed that
Comparison of the images revealed an object which had decreased in luminosity in both visible light and infrared light
https://voca.ro/16KYdRUVFQjo



https://techxplore.com/news/2020-08-amazon-fresh-supermarket-los-angeles.html
https://voca.ro/12w0PCto9kwD

Today I have read an article about a store of a new future, in which there will be no checkouts, cashiers and queues we are used to. Amazon Fresh opens the first supermarket in Los Angeles with a checkout in the cart. No more standing in lines and waiting for the cashier to scan all the goods. The trolley with which you will make purchases automatically with the help of sensors and machine vision technology will understand what kind of products you want to purchase, and will deduct money from your card immediately after you leave the store


Topic: Alternative current motor


An AC motor, or as it is also called an asynchronous motor, is an electric AC motor, the rotor speed of which is not equal to the speed of the magnetic field created by the stator winding current. It consists of a rotor, stator, rotor shaft, impeller and bearing. The main differences of this type of electric motors from the rest are low production cost, ease of maintenance and operation, as well as high reliability. Most often, this type of motor can be found in fans, compressors, vacuum cleaners, as well as on machine tools.
https://voca.ro/1opWjRGyqLAR

·        #71

Julia Kucher , PS-211 (Drozhzhina I.) (Tuesday, 14 June 2022 09:23)

in principle
https://voca.ro/15etlj82UpGr
The assessment leads to recommendations, which can be supported in principle.

in other words
https://voca.ro/1e90xJSYccae
So the benchmark is objective assessment or in other words reasonability.

The digital version
https://voca.ro/1otjECsrfcNk
The digital version is based on an especially developed viewer, providing the following functions.

Article: https://techxplore.com/news/2022-03-crowd-friendly-robotic-wheelchair.html
Vocaroo: https://voca.ro/1jUiJUZKKKz5
Today I have read an article titled "World's record entanglement storage sets up a milestone for Quantum Internet Alliance". The article tells us about how researchers from Sorbonne University in Paris have achieved a highly efficient transfer of quantum entanglement into and out of two quantum memory devices. This achievement brings a key ingredient for the scalability of a future quantum internet. A quantum internet that connects multiple locations is a key step in quantum technology roadmaps worldwide. In my opinion, it is a very interesting research and I would like to know more about quantum internet.

Article: https://techxplore.com/news/2021-05-power-river.html
Vocaroo: https://voca.ro/1apajHaJSWuZ
Today i have read the article "Innovating power generation where are river runs through it'. This article tells us about a hydroelectric. The hydroelectric power provides an alternative to fossil fuels, but not all generation methods are equally clean or economically viable. The classic 'solution' involves building a concrete dam and locating a hydroelectric power plant there, but there's all sorts of associated issues. There's the high cost of building a dam, but there's also a huge environmental impact. You restrict migration of fish, you change the local river topology, and you affect the whole ecological system around it.The hydroelectric is very practical but a little harmful to the environment.

Exam topic #3 ( Microcomputers in the stepping motor control system)
https://voca.ro/1csBoHZAs03J
What is an microcomputers in the stepping motor control system. The system design includes hardware design and software design and the circuit design contains keyboard input, LED display, the state display of light emitting diode and alarm. The keyboard can be used to input operation parameters, start and close system. The motor drives the load to process preconcerted work by the keyboard input so as to carry out point-position and speed control. The application of display circuit can show the input data of step motor and running state. The system can carry out the above function well by testing.

·        #70

Mazur Sasha PC-211 (Drozhzhina I.) (Tuesday, 14 June 2022 09:08)

de facto
Admittedly, these DNA nanostructures (4WJ) are smart, but there is the disadvantage of DNA structures that DNA is de facto a biodegradable polymer.
https://voca.ro/13gacEmxtjgH

derived from
The FMN riboswitch is found in bacterial RNAs involved in the biosynthesis of flavin metabolites derived from vitamin B2.
https://voca.ro/1nAQRPs7SlLH

deserves special attention
"Residues deserve special attention in the context of crop protection," plant pathologist Frédéric Suffert explains.
https://voca.ro/14vk5af1OV0I

https://phys.org/news/2021-11-smart-octopus.html
Today i have read article "How smart is an octopus?"This article about how researchers from the University of Queensland have discovered octopuses' unique brainpower. They have studied several species that lived in different environments and interacted with other animals with varying frequencies. The study has shown that active interaction means more complex behavior comparable to that of small mammals. It was also determined that larger brain's surface area indicates more intricate cognitive abilities.
This article does a great job of shedding light on complexity of the octopus' nervous system. To my mind, we know too little about marine life and the ocean itself to set our minds on space.
https://voca.ro/13hBJfUWtqPM

https://techxplore.com/news/2020-08-energy-red-bricks.html
Today i have read article "Storing energy in red bricks".This is story about Red bricks.Can you Imagine plugging in to your brick house.
Red bricks—some of the world's cheapest and most familiar building materials—can be converted into energy storage units that can be charged to hold electricity, like a battery, according to new research from Washington University in St. Louis.
Now, chemists in Arts & Sciences have developed a method to make or modify "smart bricks" that can store energy until required for powering devices.
I think in future we can use this metod and use red bricks like a powerbank.
https://voca.ro/1aJomM0BwU8N

·        #69

Julia Kucher , PS-211 (Drozhzhina I.) (Tuesday, 14 June 2022 09:07)

Борг за 31.05
On the contrary
https://voca.ro/1jAQmLLzCHgf
On the contrary, by implementing stronger protocols, you can help to address the problem at its source.

meet the demand
https://voca.ro/13fG1tZUZZok
Currently, the quality and accessibility of data do not meet the demand, a situation that needs to be remedied.

keep track
https://voca.ro/1buX6wKpywnQ
At busy transport hubs where cars mix with cyclists, buses, and streetcars, it can be impossible for drivers to keep track of everything around them.

Today I have read the article "Machine learning predicts antibiotic resistance spread".
This article is about genes that are not only inherited from birth. Bacteria have the ability to transfer genes to each other or take them from the environment through a process called horizontal gene transfer, which is the main culprit in the spread of antibiotic resistance. Team paper, "Functions Predict Horizontal Gene Transfer and Emergence of Antibiotic Resistance," published in Science Advances. I think it's better for people and those with biology. This is an interesting article and quite informative.

Article: https://phys.org/news/2021-10-machine-antibiotic-resistance.htmlVokaroo: https://voca.ro/15hEnFZshXOB

Topic#13: The peculiarities of DC injection braking.
https://voca.ro/1cCAsBdrAivA
What is the peculiarities of DC injection braking. DC injection braking is a method of slowing AC electric motors. A DC voltage is injected into the winding of the AC motor after the AC voltage is disconnected, providing braking force to the rotor. Large rotors and loads with a high moment of inertia may take a significant amount of time to stop through inherent friction alone. To reduce downtime, or possibly as an emergency safety feature, DC injection braking can be used to quickly stop the rotor. DC brake modules are very efficient, have no consumable parts and do not require maintenance.

·        #68

Mazur Sasha PC-211 (Drozhzhina I.) (Tuesday, 14 June 2022 09:06)

case studies
As a first step, they analyzed realistic case studies in order to determine the requirements that the platform would have to meet.
https://voca.ro/1fvtFh4nVQZf

multiple levels
A team of researchers affiliated with multiple institutions in China and two in Germany has found that data from the Event Horizon Telescope.
https://voca.ro/11foyp2InnUh

when compared
Travel site aggregators face challenges when compared to airlines that market directly.
https://voca.ro/1iAtPBbczKFz

https://phys.org/news/2014-11-frequency-small-asteroid-impacts-clues.html

Today i read the article "New map shows frequency of small asteroid impacts, provides clues on larger asteroid population".
This article about NASA publishing a map showing all meteorite occurrences in the Earth's atmosphere over the past 20 years. The data indicate that Earth's atmosphere was impacted by small asteroids, resulting in a bolide (or fireball), on 556 separate occasions in a 20-year period. Almost all asteroids of this size disintegrate in the atmosphere and are usually harmless.
The notable exception was the Chelyabinsk event which was the largest asteroid to hit Earth in this period. But by using new data, we can prevent victorious catastrophes in the future.
https://voca.ro/1mGIgEyYTQfT

https://techxplore.com/news/2022-03-headlights-road-safety.html

Today i read article "Adaptive headlights to improve road safety".
This article about risks when compared to daylight driving, not least when heading into a blind bend on an unlit road. Throughout the history of motor vehicles, safety features have been devised and added ad hoc—from bumpers, crumple zones, and airbags to seatbelts, antilocking brakes, and shatterproof windscreens. Despite the evolution cars remain dangerous.
Сonventional headlights always face forward and so as one steers into such a bend there is a blind spot to the left or right until one has traveled through it.This is the underlying cause of many road traffic accidents.

https://voca.ro/1hqa4ew7l9iR

·        #67

Julia Kucher , PS-211 (Drozhzhina I.) (Tuesday, 14 June 2022 09:06)

Борг за 17.05
1)for its own sake
https://voca.ro/18IbutttlUxC
And some argue valuing nature for its own sake is not only irrelevant, but even harmful to conservation practice.



2)from this perspective
https://voca.ro/15SsotfhXcSu
The answer sounds obvious, when you look at translation from this perspective.
3)general agreement on
https://voca.ro/1mFmbZAWXwnA
While there is general agreement on how the collapse of a core star begins.


Article: https://www.zdnet.com/article/top-programming-languages-most-popular-and-fastest-growing-choices-for-developers/
Vocaroo: https://voca.ro/1jqCgwyNrONCRecently, I have read the article "Top programming languages: Most popular and fastest-growing choices for developers". It relates to which purposes some programming languages are being used. As follows the leader of the list is JavaScript, which is mostly used for web development. After comes python, which technological capabilities make this language the best solution for data science. Top 3 list ends with Java, which similarity to JavaScript lies only in the name. Java is commonly used in mobile or desktop programming but is very bad in web programming or data science.In my opinion, this article gives us a clear layout of the top programming languages world


Exam topic #5(Alternating current motor)
https://voca.ro/12sQoBSviOR6
An AC motor is an electrical motor driven by alternating current. An AC motor consists of two main parts: an external stator with coils that are supplied with alternating current to create a rotating magnetic field, and an internal rotor attached to the output shaft, creating a second rotating a magnetic field. They have the next advantages: simple and robust structure, high operational reliability, easy maintenance, low price. They also have a high efficiency. In conclusion, we can say that modern technologies make it possible to create extremely efficient engines.

·        #66

Mazur Sasha PC-211 (Drozhzhina I.) (Tuesday, 14 June 2022 09:05)

generally accepted
It is widely generally accepted that sponges are the most basic animal
https://voca.ro/1iCnmoA7mghw

in line with
However, in line with the new paradigm, systems that provide the answer directly without any need to read the whole document
https://voca.ro/11Xc3iT6buvX

further validation
And after further validation, the scientists agreed that Sentinel-6 Michael Freilich should become the reference satellite for sea level measurements.
https://voca.ro/18fwOGw4UlNs

https://phys.org/news/2022-03-graphene.html
Today I have read article " Graphene gets enhanced by flashing"
This article about that Rice University chemists have modified a flash heating process to produce doped graphene with special properties.
Doping of graphene is possible using bottom-up approaches such as chemical vapor deposition or synthetic organic processes, but these usually yield products in trace amounts or create defects in the graphene. The Rice process is a promising way to rapidly produce large quantities of heteroatom-doped graphene without the use of solvents, catalysts, or water. The lab said this should promote more uniform deposition and improve the stability of next-generation rechargeable metal batteries.
https://voca.ro/1lOlzizguFwx

https://techxplore.com/news/2019-08-autonomous-vehicle-company-waymo-florida.html
Today I have read the article "Autonomous vehicle company Waymo to test in Florida rain". This article about Google Autonomous Car spin-off Waymo says it will begin testing on public roads in Florida to better survive heavy rain. The test vehicles in Florida will be human-driven. They will collect data using laser and radar sensors. Heavy rain may affect image quality. Waymo is already testing in several areas, including the San Francisco and Phoenix areas, as well as suburban Detroit and Seattle.The company has delayed a full-scale autonomous taxi call service in the Phoenix area due to security concerns.
https://voca.ro/1dgcLm3dSNEs

·        #65

Mazur Sasha PC-211 (Drozhzhina I.) (Tuesday, 14 June 2022 09:05)

little is known about
Little is known about child sex abuse material forums on Tor, or the extent to which they influence onion services hosting this material.
https://voca.ro/16drPiJOG5dW

main limitation
The main limitation to the evaluation stemmed from the enormous scope of support activities under review
https://voca.ro/1akOvqLnviO9

based partly on
That conclusion was partly based on the supposed dearth of organic molecules in the outer reaches of the galaxy
https://voca.ro/1m1KxGtJ5C9e

https://techxplore.com/news/2022-03-immune-hacks-inoculating-deep-neural.html
Today i have read article "Immune to hacks: Inoculating deep neural networks to thwart attacks".This aricle about hack immunity. Deep neural networks are a subset of machine learning algorithms used to solve a wide range of classification problems. To protect the algorithms from such attacks, the Michigan team developed a learning system inspired by the Robust Adversarial Immune. While the innate immune system attacks pathogens in general, the mammalian immune system can generate new cells designed to defend against specific pathogens.
I think ,that very promising part of this work is that our overall structure can protect against various types of attacks.
https://voca.ro/12G9g7ImQGCY

https://techxplore.com/news/2019-08-autonomous-vehicle-company-waymo-florida.html
Today I have read the article "Autonomous vehicle company Waymo to test in Florida rain". This article about Google Autonomous Car spin-off Waymo says it will begin testing on public roads in Florida to better survive heavy rain. The test vehicles in Florida will be human-driven. They will collect data using laser and radar sensors. Heavy rain may affect image quality. Waymo is already testing in several areas, including the San Francisco and Phoenix areas, as well as suburban Detroit and Seattle.The company has delayed a full-scale autonomous taxi call service in the Phoenix area due to security concerns.
https://voca.ro/1dgcLm3dSNEs

·        #64

Julia Kucher , PS-211 (Drozhzhina I.) (Tuesday, 14 June 2022 09:04)

Борг за 03.05
considerable disagreement
Even in a small organization, there is likely to be considerable disagreement on each of these aspects of strategy.

conduct research
But lack of connectivity severely hinders an organization's ability to perform simple functions, conduct research, and compete for grants

controversial question
New light on the controversial question of species abundance and population density.
https://voca.ro/18ycQxTpWiID


vocaroo: https://voca.ro/1frX3CfzHjIR
Article: https://techxplore.com/news/2021-11-caught-camera-ai-combat-street.html
Today, I have read the article ”Caught on camera: Using AI to combat street crime”, which I find very informative. This article describes the new solution to reduce street crimes. Researchers at Monash University Malaysia's School of Information Technology are developing cameras with an artificial intelligence (AI) system that can detect crime on the streets. This system allows police to be alerted to potential danger to someone's life.
To my mind, this new invention is very useful, because it can make our world safer.

vocaroo: https://voca.ro/1kMCs7lXOtFW
Article: https://techxplore.com/news/2022-01-ai-space.html
Today I have read the article "New AI navigation prevents crashes in space".
This article tells us that engineers are developing collision avoidance systems that will help autonomous robots maintain, assemble or manufacture satellites in orbit. Scientists must develop a reliable collision avoidance algorithm and work schedule
that works in real time so that autonomous systems can safely complete the mission, using explainable artificial intelligence. The new artificial intelligence is based on physics rather than relying solely on data, so it's more reliable.
This article is useful for AI researchers and developers. I was interested in reading this article.

·        #63

Vytvytska Katerina PC-211 (Drozhzhina I.) (Tuesday, 14 June 2022 09:01)

in other words
In other words, no person or system is trusted and every interaction is verified through a central entity.
https://voca.ro/1dHkomziuylJ

digital version
A digital version of the Consumer Electronics Show kicked off Monday, showcasing technology innovations from around the world as the pandemic has people relying on gadgets and the internet in their daily lives.
https://voca.ro/1gZKrAeCd8LJ

in principle
"What I loved about this theory was that it is in principle testable and I decided to search for evidence that might help confirm or falsify it," says Curceanu.
https://voca.ro/12Qprm8qao90

https://techxplore.com/news/2022-05-cyberspace.html
I have read the article "There are systems 'guarding' your data in cyberspace, but who is guarding the guards?". It describes the work of researchers who are developing the algorithms needed to create an efficient decentralized verification system. They are trying to help secure digital identities and improve the security of the verification processes that so many of us rely on. In the latest work, they improved the algorithms that can be used to create a decentralized verification system, which will make it much more difficult to hack. I look forward to the results of these studies, because they will help everyone feel more secure.
https://voca.ro/1go4hLdVAeeR

https://techxplore.com/news/2019-09-machines-environment.html
I have read the article "Designing machines that see, understand, and interpret their environment. It tells about the achievements of scientists in the field of creating a personal driver assistance system. The TULIPP project tries to solve the problem of using such a system in real life, given its cost and compactness. Computer algorithms analyze data from cameras very quickly and try to react to out-of-the-ordinary situations. I hope that the development of Personal Driver Assistance will continue to improve and become more reliable. This project can help reduce the number of accidents in the world, and maybe even reduce them to zero.
https://voca.ro/1mPmBxHaD9Ah

Exam topic "Alternating current motor"
The name alternative current electric motors comes from the fact that they convert alternating current electrical energy into mechanical energy in motor mode and vice versa in generator mode. They are now becoming more widespread and are gradually replacing DC machines. They can be found in cars and hoovers, in sophisticated machines and in ordinary children's toys. They can be found almost everywhere, although they differ in type, construction and performance. AC machines are divided into three main types: asynchronous, synchronous and commutator machines. Every electric motor has the property of reversibility: every electric motor can operate in generator mode and vice versa.
https://voca.ro/1hnQvF2EGht9

·        #62

Vytvytska Katerina PC-211 (Drozhzhina I.) (Tuesday, 14 June 2022 09:00)

Борг за 31.05
further validation
And after further validation, the scientists agreed that Sentinel-6 Michael Freilich should become the reference satellite for sea level measurements.
https://voca.ro/13ryfcRkPuQG

generally accepted
Certain aspects of the scroll and the positioning of the text had led some scholars to suggest that after column 27 a new scribe had started, but this was not generally accepted.
https://voca.ro/13qidpWSw06r

in line with
This will allow the researchers to continue their developments in line with user needs.
https://voca.ro/177ijzbwwJn6

https://techxplore.com/news/2022-03-safe-powerful-robotics-near-human-tasks.html
I have read an article called "Safe and powerful robotics for near-human tasks". It tells about the work of scientists from The Fraunhofer Institute for Machine Tools and Forming Technology IWU. They use innovative technology to change the rigidity of an object to create robots that will help ordinary people in their daily lives. The peculiarity of these robots is that they do not try to repeat a person, like their Asian counterparts, they consider strength and safety in themselves. It amazes and delights me that technology is developing so quickly and in a few years we will use robots in everyday life.
https://voca.ro/1ditKWUi2E22

https://www.google.com/amp/s/english.alarabiya.net/amp/media/digital/2016/04/12/Why-you-might-soon-text-robots-as-often-as-your-friends-
I have read the article "Why you might soon text robots as often as your friends" . It tells about the creation of modern bots and their work in the service sector. Bots act as assistants for users, answer their questions and help resolve problems related to the operation of the service. In some countries, bots have become part of everyday life. People order food, transport, pay for various services through bots. This article was informative for me, the introduction of this technology helps to have less contact with people, but it becomes sad that people are less willing to communicate with each other.
https://voca.ro/1bVaUfzQ1WCx

Exam topic
"Electric angle control system "

What is an electric angle control system? This is a system that allows you to adjust the position of the elements in the structure of the mechanism. For example, this concept is used in solar power plants to support the panel in an optimal position in relation to sunlight. The use of such a system allows you to maximize the efficiency of the power plant. The operation of the system is to determine the current position of the first block, and the external system transmits the desired value to the control block, and it, in turn, changes the position of the element.
https://voca.ro/1dd5abQXJ1Zk

·        #61

Vytvytska Katerina PC-211 (Drozhzhina I.) (Tuesday, 14 June 2022 08:59)

Борг за 17.05
when compared
When compared to the cleaned-up versions of the stories, the ranking algorithm is able to sort people's names with a high degree of precision even from the noisy OCR text.
https://voca.ro/16sdhaN3hTVu

https://techxplore.com/news/2021-10-algorithm-historic-documents-noteworthy-people.html

case studies
Existing data on this question were largely anecdotal, consisting of case studies of particular algorithms that were assumed to be representative of the broader scope.
https://voca.ro/138IWf68MAXq

https://techxplore.com/news/2021-09-scientists-fast-algorithms-broad-range.html

multiple levels
Global carbon emissions in 2021 are set to rebound close to pre-COVID multiple levels, according to the Global Carbon Project.
https://voca.ro/1ec8ZDfS0sI4

https://phys.org/news/2021-11-global-carbon-emissions-rebound-pre-covid.html

https://techxplore.com/news/2021-09-scientists-fast-algorithms-broad-range.html
I read the article "Scientists show how fast algorithms are improving across a broad range of examples". It says about a study of scientists at the University of Massachusetts, who have been waiting for the question of how quickly algorithms are improving. Algorithms in the world of IT - technologies are fundamental to all processes. Even in our daily life, everything is tied to them. Therefore, scientists have ordered well-known research works on algorithms and came to the conclusion that algorithms are developing at a tremendous speed, very often the power of computers is not enough for the normal operation of modern algorithms.Also, the performance of a computer depends on its power, so it is not surprising that these technologies are developing at a tremendous speed.

https://techxplore.com/news/2020-04-reveals-behavioral-differences-bots-humans.html
I read the article "Study reveals behavioral differences between bots and humans that could inform new machine learning algorithms". It says about researching modern bots and how they differ from real users. In recent years, bots have been regularly used as part of large-scale efforts on social networks to manipulate public opinion. Research results showed that during the experiment, user behavior changed, as did the behavior of bots. But still this technology is not so developed and so far recognition algorithms can figure them out.This article makes me think about how quickly the world of technology is developing, as well as how easy it is to influence the human mind with the help of this knowledge.

https://voca.ro/19OP1m6zs5HO

Exam topic "Electric dynamic braking"
Electric dynamic braking is a type of braking for induction motors in which the stator winding is disconnected from AC power and switched to DC voltage. This braking mode is used for precise stopping of motors. During braking, the stator winding creates a constant, stationary magnetic field. As the rotor rotates relative to this magnetic field, the direction of the rotor EMF changes. The rotor current will depend on the resistance in the rotor circuit. This type of braking is used, for example, in conveyor machines, in circular saws, in double-system electric locomotives, in conveyors for safe stopping of mechanisms when electric motors are switched off.
https://voca.ro/1kdh42OqBBsJ

·        #60

Vytvytska Katerina PC-211 (Drozhzhina I.) (Tuesday, 14 June 2022 08:58)

Борг за 03.05
little is known about
Little is known about child sex abuse material forums on Tor, or the extent to which they influence onion services hosting this material.
https://voca.ro/1cIH4IUDFRwd

main limitation
The main limitation of eurobonds is that they would not eliminate the divergences in competitiveness.
https://voca.ro/1evoBm2MKlbI

based partly on
They therefore need "repeaters," a kind of "relay," which are partly based on a quantum memory.
https://voca.ro/1ic3gKs9oGbj

https://phys.org/news/2022-03-quantum-bit-fora-record-breaking-milliseconds.html
I have read the article "Researchers store a quantum bit for a record-breaking 20 milliseconds". It tells about the achievement of scientists from the University of Geneva (UNIGE) in the field of cryptography. They are trying to achieve the storage of a memory qubit, as well as its transmission over long distances. Unfortunately, it is currently not possible to do this without loss of data privacy, but the Michael Aphaselius group has achieved a lot in these studies. This article makes me think about how fast the world of technology is developing and this development helps humanity to improve their gadgets: computers, smartphones and GPS navigators.
https://voca.ro/1ex9YdlMIR6u

https://www.zdnet.com/article/microsofts-new-windows-10-universal-app-platform-a-superset-of-winrt/
I have read the article "Novel fast-beam-switching transceiver takes 5G to the next level". It tells s about the research of Tokyo scientists in the creation and development of 5G technologies. They developed a transceiver that showed a speed of operation several times faster than previous models. MIMO systems increase spectral performance, large-scale phased array systems collide, but problems arise with increased power dissipation and implementation costs. Scientists from Japan are full of enthusiasm, so soon all problems will be eliminated and the super-technological future will be one step closer to us.
https://voca.ro/17ziyfdeMx9a

Exam practice
"Stepping motor control system"
Nowadays stepper motors are becoming more and more widespread in modern technological equipment. These systems are widely used as actuators in various mechanisms in industries, automobiles and household appliances. A stepper motor is a two-coordinate transport module based on linear stepper motors, which is used to manufacture highly integrated microchips. For this purpose, a probe is used, which includes a two-coordinate transport module The stepper motor control system is designed to generate signals on the windings of the stepper motor and control the rotation speed of its shaft, as well as to control the number of rotation steps.
https://voca.ro/15H7GeGJR3At

·        #59

Snovydova Lynda PS211 (Diachenko) (Friday, 10 June 2022 20:37)


difficult to explain

On the spot it's difficult to explain, it's a bit complicated.

https://voca.ro/150Z2sdJycgy

due to insufficient

However, they had to cancel the ceremony due to insufficient attention.

https://voca.ro/1UlHRkVFfL5V

data revealed

The response to the call for dynamic modelling data revealed that the task facing NFCs was complex.

https://voca.ro/1dBxMD9QSCrJ



https://techxplore.com/news/2022-04-method-bots-toxic-language.html

Today I have read the article about how researchers have developed a method that will prevent bots from using poisonous language.
Researchers at the University of California, San Diego have developed algorithms to clean speech generated by online bots from offensive language on social media and elsewhere.
However, this language model still has drawbacks. For example, the bot now avoids discussing underrepresented groups because the topic is often related to hate speech and toxic content.
Conclusion: it's great that technology develops every day in such trifles, even so that bots do not use profanity

https://voca.ro/1bUNayeBeaUo


18.Project management
In modern management, a project is understood as a set, a set of tasks and actions that have the following distinctive features: clear final goals, interconnections of tasks and resources, specific start and end dates for the project, a certain degree of novelty of the goals and conditions for implementation, the inevitability of various conflict situations around and within the project
The most popular definition, given by the American Institute of Project Management and contained in the guide to the basics of project management, interprets the project as follows. A project is a temporary undertaking designed to create unique products, services, or results.

https://voca.ro/1eRujALHdKFF

·        #58

Snovydova Lyuda PS211 (Diachenko) (Friday, 10 June 2022 19:28)

1.06

by outlining

Everything started by outlining some problems that were supposed to be solved.

https://voca.ro/15wm7EMYg5c8

classified as

It's now classified as top secret.

https://voca.ro/1kpGvoTMTPfr

beyond the scope of

Economic efficiency for food production was beyond the scope of the analysis.

https://voca.ro/1eh4B06Wb8eA

https://techxplore.com/news/2021-09-world-biggest-dark-web-platform.html

Today I have read an article about the Tor Browser, a platform that distributes millions of child sexual abuse material. This material is mostly hosted on an anonymous part of the Internet - the "dark web" - where criminals can share it without fear of prosecution.
The open source network and browser provide users with anonymity by encrypting their information and allowing them to avoid being tracked by ISPs.
Project Tor was originally developed by the US Navy to secure online intelligence communications before its code was made public in 2002.
Conclusion: It is a pity that this project initially had a good idea, but today it is used for crime purposes.

https://voca.ro/1iVGZd8OY1lT

6.Electronic dynamic braking
Dynamic braking is a type of braking of asynchronous electric motors, in which the stator winding is disconnected from the AC mains and switched on to direct voltage. This braking mode is used to precisely stop motors. During braking, the stator winding is disconnected from the AC voltage network and connected to a DC voltage source. In this case, the stator winding will create a constant fixed magnetic field. This type of braking is used, for example, in hoisting and transport machines, in electric vehicles.

https://voca.ro/11tfiEB0hLBU

·        #57

Bersenova Nikolina ES-211 ( Andreikova) (Friday, 10 June 2022 09:31)

Renewable energy of Ukraine

We know, that If country has big rate making and consumption of renewable energy it will show about its good developing. Does Ukraine generate clean energy?

Yes. But its rate small : as 2017 it was 6.67%.But Ukraine has come to the European Energy Cooperation, and it has taken upon itself the need to generate 11% of electricity from renewable energy sources by 2020 and 25 % until 2035. Ukraine is realizing its plans.

The prospects for the development of the renewable energy sector in Ukraine look optimistic. The rest of the growth of the sector was swept and such a trend will continue in the coming years.

https://voca.ro/1h4LEDik6oOG

·        #56

Liubushkin Maksim ES-211 (Andreikova) (Friday, 10 June 2022 09:01)

Physicists have demonstrated a one hundred-fold increase in the speed of optical quantum memory

Today I read an article about how physicists have demonstrated a one hundred-fold increase in the speed of optical quantum memory. In the future, computers will be equipped with quantum memory keepers. Unfortunately, storage times and bandwidth are poor. A group of physicists from the US, UK and Canada were able to increase the data transfer rate to 1 GHz. This value is more than a hundred times the speed of the current memory. In their experiments, they use a hot cesium vapor chamber as a storage medium. Quantum memory is the future of computers and scientists.

https://voca.ro/1nM5HsrZI5WH

·        #55

Liubushkin Maksim ES-211 (Andreikova) (Friday, 10 June 2022 08:56)

A fluid-magnetic solution for sorting plastic waste

Link: https://techxplore.com/news/2021-02-fluid-magnetic-solution-plastic.html

Today I read an article about a liquid magnetic solution for sorting plastic waste. Due to the insane growth in the production of plastic, we need to figure out how to recycle it. Plastic pollution is very harmful to the environment. How does this separator work? And everything is quite simple. There are different types of plastic (heavy, light, etc.), so they need to be distributed. And they are distributed just by these magnetic fluids. Thus, they are sorted by type and it is easier to process. This method can easily and without errors separate different types of plastic.

Vocaroo:https://voca.ro/17FILFXn6h85
focused primarily on - основное внимание уделялось
They focused primarily on the SolSmart Program, a VEP that encourages local governments to adopt best practices to promote solar installation.

В первую очередь они сосредоточились на программе SolSmart, программе VEP, которая побуждает местные органы власти внедрять передовой опыт для продвижения солнечных установок.

first use of - впервые применила
Researchers document the first use of maize in Mesoamerica.
Исследователи документируют первое использование кукурузы в Мезоамерике.

for a number of reasons - в силу ряда причин
The technology is novel for a number of reasons, one being that it has the potential to provide new insight into the environmental factors that have significant impacts on air pollution levels.
Эта технология является новой по ряду причин, одна из которых заключается в том, что она может дать новое представление о факторах окружающей среды, которые оказывают значительное влияние на уровни загрязнения воздуха.

·        #54

Tyschuck Alexandr EM-211 (SL Mikhailyuk) (Friday, 10 June 2022 08:24)

Today i have read the article:"Simplified interface for time-series data predictions". If someone is trying to predict tomorrow's weather, predict future stock prices, determine lost retail sales opportunities, or estimate a patient's risk of developing a disease, they will likely need to interpret time series data, which is a set of recorded. Making predictions using time series data usually requires several steps of data processing and the use of complex machine learning algorithms that have such a steep learning curve that they are inaccessible to non-specialists. To make these powerful tools more user-friendly, MIT researchers have developed a system that directly integrates forecasting functions on top of an existing time series database. The new system is more accurate and more efficient than current deep learning methods in performing two tasks: predicting future values ​​and filling in missing data points. With each new day, methods of mathematical predictions appear that will help many in calculations.
Voice link: https://voca.ro/1aWLYQWEZlUp
Article: https://techxplore.com/news/2022-03-interface-time-series.html

·        #53

Pugach Max EM-211 (SL Mikhailyuk) (Friday, 10 June 2022 08:11)

https://phys.org/news/2021-05-closer-creation-metamorphic-sole.html
Today I have read the article "A closer look at the creation of a metamorphic sole".When two of Earth's tectonic plates collide, the heavier plate is forced underneath and back into the mantle in a process called subduction.During the early stages of newly initiated subduction zones, the uppermost part of the downward traveling plate can detach and accrete to the base of the overriding (upper) plate.Later, these slices can be exposed at Earth's surface and are known as metamorphic soles.The study concludes by outlining a three-step sequence for the evolution of the metamorphic sole.Thanks to this article, we will learn a little more about metamorphic soles.

·        #52

Pugach Max EM-211 (SL Mikhailyuk) (Friday, 10 June 2022 08:10)

Today I have read the article called"New study reveals why Facebook ads can miss target".This article tells about
the study from North Carolina State University that provides insight into why targeted Facebook ads sometimes look more like wild ads.Facebook is the largest company in the world with over 2 billion monthly users. The resource was founded by Mark Zuckerberg and his friends while studying at Harvard University in 2004. Officially, the social network is owned by Facebook Inc which also owns WhatsApp and Instagram.I think this article is interesting and I hope Facebook can achieve their goal.
1)bear in mind
Global warming is certainly something to bear in mind.
2)examined in detail
Obligations under Security Council resolution had been examined in detail.
3)expanded upon
This prohibition is further expanded upon in kabbalistic literature.

·        #51

Osolinskyi Nikita ES-211 (Andreikova) (Friday, 10 June 2022 08:06)

Electric dynamic braking

Today I read an article about electric dynamic braking. Dynamic braking is the use of an electric traction motor as a generator when slowing a vehicle such as an electric or diesel-electric locomotive. It is termed rheostatic if the generated electrical power is dissipated as heat in brake grid resistors, and regenerative if the power is returned to the supply line. Dynamic braking reduces wear on friction-based braking components, and regeneration lowers net energy consumption. Dynamic braking may also be used on railcars with multiple units, light rail vehicles, electric trams, trolleybuses, and electric and hybrid electric automobiles.

https://voca.ro/1nggNkmk7NgW

·        #50

Tyschuck Alexandr EM-211 (SL Mikhailyuk) (Friday, 10 June 2022 08:00)

daily phrases:

1) focused primarily on - зосереджено насамперед на

The Mission focused primarily on the issue of citizenship and on the language requirements established for obtaining Estonian citizenship.

Місія зосередилася на питанні громадянства та мовних вимог, встановлених для отримання громадянства Естонії.

2)for a number of reasons - з ряду причин

The preparation of this report has been quite a challenge for a number of reasons.

Підготовка цього звіту була досить складною з ряду причин.

3)first use of - перше використання

In some cases, after the first use of the nits, it is possible to remove the active combing, and there is no need to repeat the procedure.

У деяких випадках після першого використання гнид можна видалити активне розчісування, і повторювати процедуру не потрібно.

voice link: https://voca.ro/1oN8eA9Q4Osr

Article reveal:
Today i have read the article:"First use of VLBI to focus on a single star system for signs of life comes up empty". Previously, it seems that the number of signals in the surviving star system was not unexpected, but the chances of knowing the signals in reasonable places when pointing at the dawn of the system are small, that there are billions to choose from . Irrespective of the price, they remind you that the mood is optimistic, the project has shown that such a technology can be used to turn off other dawn systems in the future. Perhaps a planet inhabited by some form of life simply does not emit radio waves, or maybe it does, but not at the frequency the team is looking at. Before to this project, astronomers used radio telescopes that simply scanned the sky for interesting signals. In this new approach, the team focused on a single star system thought to have two planets that could host some form of life, using VLBI, where multiple telescopes are virtually connected together to create one large system. We can say that we are step by step approaching the study of a new life, perhaps soon we will be able to find something new.
Voice link: https://voca.ro/12zTvK5W5Mv7
Article: https://phys.org/news/2012-06-vlbi-focus-star-life.html

·        #49

Bohdan Demchenko ES-211 (Andreikova) (Friday, 10 June 2022 07:44)

Review: Heat supply

Today I've read the article about heat supply.
Heat supply - a system of centralized heat supply to buildings and structures. The heat supply system consists of the following functional parts: a source of thermal energy, transporting thermal energy devices to the premises and heat-consuming devices that transmit thermal energy to the consumer. According to the place of heat generation, heat supply systems are divided into centralized and decentralized. Heat consumers of the heat supply system are heat-using sanitary systems of buildings and technological installations.
Heat supply is an important component that provides us with a comfortable life.

Vocaroo: https://voca.ro/1lHOEDz69yJS

·        #48

Bohdan Demchenko ES-211 (Andreikova) (Friday, 10 June 2022 07:44)

Review: Energy saving

Today I've read an interesting article about energy saving.
Energy saving - reducing energy consumption by using fewer energy services. Energy saving differs from energy efficiency in that it uses less energy for the same service. But energy saving and energy efficiency are techniques for reducing energy use. Although energy efficiency primarily reduces the consumption of energy services, it can result in increased environmental quality, national security, and personal financial security. Energy saving is at the top of the sustainable energy hierarchy.
The problem of energy saving is closely intertwined with the problems of energy, ecology, technical re-equipment and restructuring of the entire economy.

Vocaroo: https://voca.ro/1gb19fpZfKd5

·        #47

Chorny Maxim ES-211 (Andreikova) (Thursday, 09 June 2022 17:58)

Review: Economy energy audit and management.

Today I have read the article about economy energy audit and management. The energy audit is an important instrument for identifying potential for increasing energy efficiency, reducing energy costs and for defining appropriate measures. So, when companies know how much energy is consumed in which areas of the company, they can derive the optimal savings potential. The energy audit is therefore an important tool for individual companies and thus for the entire economy to promote energy efficiency and cost savings. In my opinion, by developing energy management, we can reach technologically advanced future way much faster.

Vocaroo: https://voca.ro/14YWZzSshcBV

·        #46

Drozhzhina I to Julia Kucher , PS-211 (Tuesday, 07 June 2022 11:14)

Please don’t forget about your independent work, in general your comments are good

·        #45

Julia Kucher , PS-211( Drozhzhina) (Tuesday, 07 June 2022 08:44)

———————- 31.05——————-
On the contrary
https://voca.ro/1jAQmLLzCHgf
On the contrary, by implementing stronger protocols, you can help to address the problem at its source.

meet the demand
https://voca.ro/13fG1tZUZZok
Currently, the quality and accessibility of data do not meet the demand, a situation that needs to be remedied.

keep track
https://voca.ro/1buX6wKpywnQ
At busy transport hubs where cars mix with cyclists, buses, and streetcars, it can be impossible for drivers to keep track of everything around them.

Today I have read the article "Machine learning predicts antibiotic resistance spread".
This article is about genes that are not only inherited from birth. Bacteria have the ability to transfer genes to each other or take them from the environment through a process called horizontal gene transfer, which is the main culprit in the spread of antibiotic resistance. Team paper, "Functions Predict Horizontal Gene Transfer and Emergence of Antibiotic Resistance," published in Science Advances. I think it's better for people and those with biology. This is an interesting article and quite informative.

Article: https://phys.org/news/2021-10-machine-antibiotic-resistance.htmlVokaroo: https://voca.ro/15hEnFZshXOB

Topic#13: The peculiarities of DC injection braking.
https://voca.ro/1cCAsBdrAivA
What is the peculiarities of DC injection braking. DC injection braking is a method of slowing AC electric motors. A DC voltage is injected into the winding of the AC motor after the AC voltage is disconnected, providing braking force to the rotor. Large rotors and loads with a high moment of inertia may take a significant amount of time to stop through inherent friction alone. To reduce downtime, or possibly as an emergency safety feature, DC injection braking can be used to quickly stop the rotor. DC brake modules are very efficient, have no consumable parts and do not require maintenance.

·        #44

Julia Kucher , PS-211( Drozhzhina) (Tuesday, 07 June 2022 08:42)

—————— 17.05———————-
1)for its own sake
https://voca.ro/18IbutttlUxC
And some argue valuing nature for its own sake is not only irrelevant, but even harmful to conservation practice.



2)from this perspective
https://voca.ro/15SsotfhXcSu
The answer sounds obvious, when you look at translation from this perspective.
3)general agreement on
https://voca.ro/1mFmbZAWXwnA
While there is general agreement on how the collapse of a core star begins.


Article: https://www.zdnet.com/article/top-programming-languages-most-popular-and-fastest-growing-choices-for-developers/
Vocaroo: https://voca.ro/1jqCgwyNrONCRecently, I have read the article "Top programming languages: Most popular and fastest-growing choices for developers". It relates to which purposes some programming languages are being used. As follows the leader of the list is JavaScript, which is mostly used for web development. After comes python, which technological capabilities make this language the best solution for data science. Top 3 list ends with Java, which similarity to JavaScript lies only in the name. Java is commonly used in mobile or desktop programming but is very bad in web programming or data science.In my opinion, this article gives us a clear layout of the top programming languages world


Exam topic #5(Alternating current motor)
https://voca.ro/12sQoBSviOR6
An AC motor is an electrical motor driven by alternating current. An AC motor consists of two main parts: an external stator with coils that are supplied with alternating current to create a rotating magnetic field, and an internal rotor attached to the output shaft, creating a second rotating a magnetic field. They have the next advantages: simple and robust structure, high operational reliability, easy maintenance, low price. They also have a high efficiency. In conclusion, we can say that modern technologies make it possible to create extremely efficient engines.

·        #43

Julia Kucher , PS-211( Drozhzhina) (Tuesday, 07 June 2022 08:40)

————- 03.05———
considerable disagreement
Even in a small organization, there is likely to be considerable disagreement on each of these aspects of strategy.

conduct research
But lack of connectivity severely hinders an organization's ability to perform simple functions, conduct research, and compete for grants

controversial question
New light on the controversial question of species abundance and population density.
https://voca.ro/18ycQxTpWiID


vocaroo: https://voca.ro/1frX3CfzHjIR
Article: https://techxplore.com/news/2021-11-caught-camera-ai-combat-street.html
Today, I have read the article ”Caught on camera: Using AI to combat street crime”, which I find very informative. This article describes the new solution to reduce street crimes. Researchers at Monash University Malaysia's School of Information Technology are developing cameras with an artificial intelligence (AI) system that can detect crime on the streets. This system allows police to be alerted to potential danger to someone's life.
To my mind, this new invention is very useful, because it can make our world safer.

vocaroo: https://voca.ro/1kMCs7lXOtFW
Article: https://techxplore.com/news/2022-01-ai-space.html
Today I have read the article "New AI navigation prevents crashes in space".
This article tells us that engineers are developing collision avoidance systems that will help autonomous robots maintain, assemble or manufacture satellites in orbit. Scientists must develop a reliable collision avoidance algorithm and work schedule
that works in real time so that autonomous systems can safely complete the mission, using explainable artificial intelligence. The new artificial intelligence is based on physics rather than relying solely on data, so it's more reliable.
This article is useful for AI researchers and developers. I was interested in reading this article.

·        #42

Julia Kucher , PS-211( Drozhzhina) (Tuesday, 07 June 2022 08:38)

another way of
https://voca.ro/11eq4IFQwikE
There is another way of analysing this situation.

able to eliminate
https://voca.ro/133MTORNjCmG
They were able to shrink some gaps, but couldn't eradicate them.

alternative way
https://voca.ro/1fKVybfM0LMC
They found an alternative way to control the mass density of the fluid by simply engineering the thickness of the fluid channel.

Article: https://techxplore.com/news/2021-05-power-river.html
Vocaroo: https://voca.ro/1apajHaJSWuZ
Today i have read the article "Innovating power generation where are river runs through it'. This article tells us about a hydroelectric. The hydroelectric power provides an alternative to fossil fuels, but not all generation methods are equally clean or economically viable. The classic 'solution' involves building a concrete dam and locating a hydroelectric power plant there, but there's all sorts of associated issues. There's the high cost of building a dam, but there's also a huge environmental impact. You restrict migration of fish, you change the local river topology, and you affect the whole ecological system around it.The hydroelectric is very practical but a little harmful to the environment.

Topic16: Economy energy audit and management.
https://voca.ro/1bbhx4pHmqoT
What is an economy energy audit and management?
An energy audit is an inspection survey and an analysis of energy flows for energy conservation in a building. Reducing energy consumption while maintaining or improving human health, safety and comfort are of primaty concern. The energy management process starts with an energy audit to find opportunities to improve efficiency then putting it into action with a number of strategies and then tracking the progress of the made changes.
From my point of view energy audit and management are important things that help us save our money and lots of resources.

·        #41

Petrova E.I. (Monday, 06 June 2022 10:22)

Pour les étudiants qui apprennent le français.
Chers étudiants ! J’attends vos devoirs. Dépéchez-vous! Il ne vous reste que quelques jours pour les faire et envoyer.Laissez vos commentaires et vos enregistrements ici. Allez-y! Bon travail.

·        #40

Chorny Maxim ES-211 (Andreikova) (Friday, 03 June 2022 16:53)

Review: Electrical Systems

Today I have read the article about the structure of electrical systems. Everyone uses electricity in their everyday lives, yet lots of us do not think how it works and how it is distributed throughout our houses. Electricity flows in from one of two 120-volt wires and backs out through a grounded neutral wire. Any flaw in the wire to and from these points will interrupt the current’s path and cause a fault in one of the circuits. In my opinion, by developing these systems, above all - their efficiency and security, we can reach technologically advanced future way much faster.

Vocaroo: https://voca.ro/1kABV2YHSctA

·        #39

S.Mykhailiuk (Friday, 03 June 2022 12:53)

To Pugach Max EM-211 Task1 is good, it has some mistakes though, Task2 has been wrongly done. UNACCEPTED. Task3 is satisfactory. Keep on working hard and read my announcement at the beginning of the session.

·        #38

S.Mykhailiuk (Friday, 03 June 2022 12:43)

To Tyschuck Alexandr EM-211 Task1 is very good, task2 contains grammar mistakes. Just 74 points.

·        #37

S.Mykhailiuk (Friday, 03 June 2022 10:48)

To Tyschuck Alexandr EM-211 just 75 points.

·        #36

S.Mykhailiuk (Friday, 03 June 2022 10:45)

To Golubov Paul EM-211 Task1 is UNACCEPTED ( pls mind native tongue translation).
Task2 is satisfactory, the conclusion should be different. Work hard to get Bett results..

·        #35

S.Mykhailiuk (Friday, 03 June 2022 10:39)

To Kurko Ivan EM-211 task with the phrases is incomplete can hardly be accepted.

·        #34

S.Mykhailiuk (Friday, 03 June 2022 10:37)

To Kurko Ivan EM-211 pls do not emphasize the word “Conclusion “. The conclusion you’ve made looks like the general words but not an insight into the contents. Just 73 points

·        #33

S.Mykhailiuk (Friday, 03 June 2022 10:31)

To Kurko Ivan EM-211 There is no reference to the source of the article. Just 70 points.

·        #32

S.Mykhailiuk (Friday, 03 June 2022 10:28)

To Pugach Max EM-211 All in all you earned 76 points.

·        #31

Bersenova Nikolina ES-211 ( Andreikova) (Friday, 03 June 2022 08:39)

Brunch Circuit Motor Protection

Each electrical device can operate in abnormal conditions for various reasons. Brunch Circuit Motor Protection is used to save the engine as well as people's lives.

Brunch Circuit Motor Protection includes fuses and circuit breakers. Fuses are used to protect electrical networks from overloads and short circuits. Circuit breakers are designed to turn on and off asynchronous motors, as well as to protect them from overload currents and short circuits.

Thus, Brunch Circuit Motor Protection prevents the destruction of electrical appliances and networks. And also protects people from damage by current.

https://voca.ro/1hhlXk00SUIn

·        #30

Pavlov Eugene ES-211 ( Andreikova) (Friday, 03 June 2022 08:35)

Review: Renewables exploitation for energy production

Today I have read an article about renewables exploitation for energy production. In Nowadays, the provision of viable energy production and the energy autonomy are fundamental and utmost importance issues included in drawing the national strategic plan of both developing and developed countries. In parallel, the contentious role of fossil-based energy infrastructures, in the light of their high external costs of operation/use and the environmental depletion, have oriented current scientific research to find and exploit other energy sources that comply with increased pressure towards energy production, energy autonomy, and energy safety. Nevertheless, these preconditions of any energy mix introduced signify the importance of developing mature renewable energy technologies, which could enable sound and credible exploitation of any new-coming energy source, in the light of socio-economic acceptability and environmental sustainability.
Nowadays, the provision of viable energy production and the energy autonomy are fundamental and utmost importance issues included in drawing the national strategic plan of both developing and developed countries. In parallel, the contentious role of fossil-based energy infrastructures, in the light of their high external costs of operation/use and the environmental depletion, have oriented current scientific research to find and exploit other energy sources that comply with increased pressure towards energy production, energy autonomy, and energy safety. Nevertheless, these preconditions of any energy mix introduced signify the importance of developing mature renewable energy technologies, which could enable sound and credible exploitation of any new-coming energy source, in the light of socio-economic acceptability and environmental sustainability.

·        #29

Kurko Ivan EM-211 (SL Mikhailyuk) (Friday, 03 June 2022 08:31)

Today I read an article about a modern electric drive.
A modern electric drive is a combination of an electric motor, which is a source of mechanical energy, control and protection equipment, as well as mechanical, hydraulic. Electric drives are the main consumers of electricity and the main source of mechanical energy in industry. The best way to save energy in all industries that need to adjust the performance of machines based on AC motors is to use an AC variable speed drive.
this study and article made it possible to understand that thanks to these engines, it is possible to achieve many times greater energy savings
https://voca.ro/18dn5qtdqdQX

·        #28

Pavlov Eugene ES-211 ( Andreikova) (Friday, 03 June 2022 08:27)

Review: Hydrogen from renewable electricity

Today i have read an article about renewable electricity.
An increasingly large percentage of power is being generated from renewable energy sources with intermittent and fluctuating outputs. Therefore there is a growing need for energy storage. With power-to-gas, excess electricity is converted into hydrogen by water electrolysis, which can be stored and, when needed, can be reconverted into electricity with fuel cells. Besides the energy vector for electricity, mobility and heat, hydrogen can be utilized as a raw material for the chemical industry or further be used for the synthesis of various hydrocarbon fuels such as methane.

·        #27

Kurko Ivan EM-211 (SL Mikhailyuk) (Friday, 03 June 2022 08:25)

controversial question - will electric vehicles completely replace internal combustion engines is a controversial question
considerable disagreement - There is considerable disagreement about this situation.
conduct research - scientists insist on conducting research regarding this
https://techxplore.com/news/2019-02-robots-future-farms.html
today I read an article that Robots can manage the farms of the future, recently scientists have become interested in the topic of converting the work of people in the field into automation for the work of artificial intelligence, since people have already set up a program for 40 plant species, it can itself select a fertilizer for it so however, after less human presence and heavy equipment on the field, fewer chemicals will be used and the growth of sprouting will accelerate, since large tractor wheels interfere with the roots of growth by compacting the soil, CONCLUSION I consider this a very useful idea, it needs to be developed, I hope we will wait for automation around the world
https://voca.ro/16JnXdADiHq2

·        #26

Bohdan Demchenko ЕS-211 (Andreikova) (Friday, 03 June 2022 08:22)

Review: Modern electrical drive.

Today I've read the article about modern electrical drive.
Modern electric drive is a set of electric motor, which is a source of mechanical energy, control and protection equipment, as well as mechanical, hydraulic or electrical transmission. Electric drives are the main consumers of electricity (up to 60%) and the main source of mechanical energy in industry. The most effective way to save energy in all industries where you need to regulate the performance of mechanisms based on AC motors is the use of adjustable AC drive.
The introduction of such an electric drive on mechanisms with a square load allows you to avoid throttling and achieve energy savings of 30-70%.

Vocaroo: https://voca.ro/1aJcDgeGRdE3

·        #25

Bohdan Demchenko ЕS-211 (Andreikova) (Friday, 03 June 2022 08:21)

Review: Power supply of industrial enterprises.

Today I've read an interesting article about power supply of industrial enterprises.
The power supply system is a set of devices for the production, transmission and distribution of electricity. The power supply system of industrial enterprises provides electricity to industrial consumers. The main consumers are electric drives of various machines and mechanisms, electric lighting, electric heating devices, including electric furnaces. The work of industrial electric drives and other consumers both in design and during operation must be in strict accordance with both individual consumers and the complex of electric drives that ensure the operation of complex mechanisms.
Power supply - the driving force for all enterprises.

Vocaroo: https://voca.ro/16yTD3mdvBXO

·        #24

Golubov Paul EM-211 (SL Mikhailuk) (Friday, 03 June 2022 08:14)

1- conduct research - проведение исследований
Health psychologists apply this knowledge to conduct research on a variety of questions.
Психологи применяют эти знания для проведения исследований по различным вопросам.

2- controversial question - спорный вопрос
Her work has provided new insights into the controversial question of whether the languages we speak shape the way we think
Её исследования позволили по-новому взглянуть на спорный вопрос, влияет ли язык, на котором мы говорим, на наше мышление

3- considerable disagreement - значительные разногласия
Their behaviour is so different from the other s-block elements that there is considerable disagreement over where these two elements should be placed in the periodic table.
Их химические свойства так сильно отличаются от других s-элементов, что порой возникают значительные разногласия относительно положения элементов в периодической системе.


Today I have read the article "Robots may run future farms, researchers say". This article tells us that in the next couple of years there may be people who will try to introduce robots into agriculture. The reason for this may be that in our time, manual labor is becoming less effective compared to the labor of robots, since these very robots do not need to eat and rest, and they can also quickly collect information from a large area and transfer it to the owner of the field. Also, replacing heavy machinery with autonomous light robots and drones can solve the problem of soil compaction and make food production more sustainable. This article is recommended to reading as it tells us what farmers will do in the future in order to get more crops on a smaller field area.

Link - https://techxplore.com/news/2019-02-robots-future-farms.html
Voice - https://voca.ro/1e6oHIyOlXeD

·        #23

S.Mykhailiuk (Friday, 03 June 2022 08:08)

To Kondratev Vitaliy Em-211 Just good for 3 tasks .Mind the translation of the sentences with the phrases . Focus on exam topics.

·        #22

Bersenova Nikolina ES-211 ( Andreikova) (Friday, 03 June 2022 08:07)

Mathematical models and optimization techniques

In power supply systems, there are devices that affect the parameters of the electrical mode. These effects need to be calculated. Technical problems, set mathematically, are considered to optimization problems.

Solving the applied problem according is performed as follows:
At the first stage, a specialist develops a mathematical model that describes the problem;
In the second stage, the mathematician chooses or creates the method of solving the problem;
In the third stage, an application program is selected, which implements method and allows you to find the optimal solutions.

I think, that the ability to solve applied problems mathematically is very important for human life.

https://voca.ro/1nyTMDLLufVS

·        #21

Chorny Maxim ES-211 (Andreikova) (Friday, 03 June 2022 08:06)

Review: Mathematical models and optimization techniques.

Today I have read the article about mathematical models and optimization techniques. Mathematical model is a system of mathematical correlations that describe the studied process or phenomenon. It allows us to predict the course of the process, calculate its initial parameters, manage it, design systems with the desired characteristics. While mathematical optimization is the selection of the best element from the set of available alternatives. In the design process the task is to determine the best structure or value of object's parameters. In my opinion, be developing these models, we can increase their efficiency, which will help us to optimize any process.

Vocaroo: https://voca.ro/1lWwyPgtttVS

·        #20

Tyschuck Alexandr EM-211 (SL Mikhailyuk) (Friday, 03 June 2022 07:55)

Today i have read the article: "Internet connection is the oxygen for research and development". Fast and reliable Internet access is fundamental to research and development around the world. Pete Goldsmith, director of the Soybean Innovation Lab at the University of Illinois, works closely with partner organizations in several African countries. He noticed that his African colleagues often encountered technological problems that made communication very difficult. For example, sometimes they had to rely on their mobile phones because the Internet access in their institution was unreliable. Goldsmith teamed up with two IT experts from U of I, former CIO Paul Hickson and director of research for IT and innovation. The case study included focus groups, interviews, and technology analysis of SARI equipment and communications. The third step examines the available intranet service offerings for researchers, such as local storage, data backup procedures, access control, security procedures, email service, and cloud access.Finally, the fourth step concerns the human resource and technical support requirements for planning and managing an institution's IT infrastructure. Therefore, the Internet is not just a tool for many studies.

Voice link: https://voca.ro/14Af4ioX6vRG

Article: https://techxplore.com/news/2020-10-internet-oxygen.html

·        #19

S.Mykhailiuk (Friday, 03 June 2022 07:54)

To all students from group EM-211
Welcome back to the activities today. I suggest you prepare the following speciality topics during this session. They are as follows: Basics of actuator; Основы электропривода;
Basics of electricity supply; Основы электроснабжения;
Electrical apparatus; Электрические аппараты;
Automatic Control Theory; Теория автоматического управления;
Electric systems and networks; Электрические системы и сети;
Electrical technological installation; Электротехнологические установки;
Fundamentals of Heat Engineering; Основы теплотехники; Also post the phrases of the day with appropriate links.

·        #18

Tyschuck Alexandr EM-211 (SL Mikhailyuk) (Friday, 03 June 2022 07:44)

Daily phrases:

1)conduct research - провести дослідження

The aim was to conduct research and establish a dialogue on reforming the international financial system with a view to reducing financial volatility.

Метою було провести дослідження та налагодити діалог щодо реформування міжнародної фінансової системи з метою зменшення фінансової нестабільності.

2) considerable disagreement - значні розбіжності

Yet, considerable disagreement and uncertainty remains about how to interpret and apply the standard, leaving many countries hesitant to innovate.

Тим не менш, залишаються значні розбіжності та невизначеність щодо того, як інтерпретувати та застосовувати стандарт, через що багато країн вагаються щодо інновацій

3)controversial question - спірне питання

A good example is the potentially controversial question of prevention.

Хорошим прикладом є потенційно спірне питання профілактики.

Voice link: https://voca.ro/1cFU40MIpEGV

Article reveal:
Today i have read the article: "Astronauts board shuttle Discovery for last flight". This article is about about the historic moment of NASA. The six astronauts of the space station delivery mission made their way to the launch pad in the early afternoon, waving and smiling to the huge crowd taking pictures in the crew quarters. Once on the pad, they stopped at the base of the pad to look at the Discovery and hugged before climbing aboard.
Discovery will travel to the International Space Station with a crew, a cargo of supplies and a humanoid robot.Approximately 40,000 guests attended Discovery's farewell launch; among the expected VIPs was a small contingent of congressional representatives. Watching with particular interest from Mission Control in Houston is astronaut Timothy Kopra, who was to be the lead spacewalker. "Discovery" will spend 11 days in orbit - on top of the 352 days it has already spent orbiting the planet - and travel another 4.5 million miles. We can say that NASA to this days does not miss the opportunity to hold such historical moments.

Voice link: https://voca.ro/15ISgpCHbGoZ
Article: https://phys.org/news/2011-02-astronauts-board-shuttle-discovery-flight.html

·        #17

Prodanov Dmutro EM-211 (SL Mikhailuk) (Friday, 03 June 2022 07:38)

https://techxplore.com/news/2021-11-personalized-exosuit-real-world.html
Today I have read the article "A personalized exosuit for real-world walking". Researchers at Harvard have developed a new approach in which robotic exosuit assistance can be calibrated to humans and adapted to various real-life walking challenges in seconds. The new system only needs a few seconds of walking to capture the muscle profile. When tested in real-life situations, the exosuit was able to quickly adapt to changes in walking speed and incline. The research team aims to test the system by making continuous adjustments in real time. This approach can help support the adoption of wearable robotics in real, dynamic situations by providing comfortable, personalized and adaptive care.
https://voca.ro/13obZ5n4enK8

·        #16

Prodanov Dmutro EM-211 (SL Mikhailuk) (Friday, 03 June 2022 07:37)

Considerable disagreement - Even in a small organization, there is likely to be considerable disagreement on each of these aspects of strategy.
Значні розбіжності - навіть у невеликій організації, ймовірно, будуть значні розбіжності щодо кожного з цих аспектів стратегії.

Conduct research - The team has already begun to conduct research on other readout techniques to further shorten the processing time.
Проведіть дослідження. Команда вже почала проводити дослідження інших методів зчитування, щоб ще більше скоротити час обробки.


Controversial question - The mystery of polariton interactions has finally been resolved: Skoltech's research gives a decisive answer to this controversial question.
Контроверсійне питання - Таємниця поляритонних взаємодій нарешті розкрита: дослідження Сколтеху дають вирішальну відповідь на це суперечливе питання.

https://techxplore.com/news/2021-11-repurposing-carbon-dioxide-key-net-zero.html
Today I have read the article "Repurposing carbon dioxide may be key to net-zero emissions". Carbon dioxide makes up only 4 percent of the atmosphere and plays a vital role in sustaining life on our planet. If this delicate balance is upset, excess carbon dioxide can pose a huge threat to our environment and living things. There are several methods for reducing the negative effects of carbon dioxide. One of these methods is decarbonization. Another technique called carbon sequestration, which removes carbon from the atmosphere. Similarly, carbon dioxide can be removed from emissions or the atmosphere using amine columns or similar carbon capture technologies and purified.
https://voca.ro/1itGRkchSxuU

·        #15

Osolinskyi Nikita ES-211 (Andreikova) (Friday, 03 June 2022 07:30)

The role of plugging in motor stopping

Today i read an article about the role of plugging in motor stopping. The system of a DC motor brake works by regulating voltage on one side of the circuit and plugging voltage on the other. The EMF pulls in one direction and the motors inertial rotation in the other. The system of a DC motor brake works by regulating voltage on one side of the circuit and plugging voltage on the other. The EMF pulls in one direction and the motors inertial rotation in the other. In both methods power that was propelling the motor is now working against it the motor stops more quickly.

https://voca.ro/1iCnHpMUDLaJ

·        #14

Pugach Max EM-211(SL Mikhailyuk) (Friday, 03 June 2022 07:22)

https://techxplore.com/news/2022-05-potential-game-changer-3d.html
Today I have read an article about Direct sound printing is a potential game-changer in 3D printing, according to researchers. Today, professional 3D printers are actively used in various areas of production. They are most effectively used in mechanical engineering and architecture. Researchers have developed a new platform technology called direct sound printing (DSP). It uses sound waves to create new objects. And this allows for more precise projection that is independent of light. I think this method of using 3D printing will help solve previously unsolvable problems.
Vocaroo https://vocaroo.com/1euu4V13VG9N

Phrases of the Day
1)comparative investigation of
He did some comparative investigations of nanotechnology via computer.
2)condition imposed by
He argued that the new project was a complete copy goal achievement condition imposed by head of the company.
3)comprehensive investigation of
Student Council Head that a more comprehensive investigation of the incident was being undertaken.

·        #13

Chernyavsky Maksym ES-211 (Andreikova) (Friday, 03 June 2022 07:20)

Speed estimation system for alternating current motor

Common methods for controlling the speed of an AC motor are changing the additional resistance of the rotor circuit, changing the voltage supplied to the stator winding, changing the frequency of the supply voltage, and switching the number of pole pairs.
The introduction of resistors into the rotor circuit leads to an increase in power losses and a decrease in the rotational speed. The rigidity of the mechanical characteristics decreases significantly with a decrease in the rotational speed. Changing the voltage supplied to the motor stator winding allows to adjust the speed

https://voca.ro/13oBCShKCCf0

·        #12

Pugach Max EM-211(SL Mikhailyuk) (Friday, 03 June 2022 07:20)

https://phys.org/news/2019-11-quantum.html
Today I’ve read the article called “Quantum computers learn to mark their own work”. It tells us about the first quantum computer that can outperform a classical computer to be realised. By creating a protocol that allows a quantum computer to check its own answers to difficult problems, the scientists have provided a means to confirm that a quantum computer is working correctly without excessive use of resources. The researchers have developed a protocol to quantify the effects of noise on the outputs of quantum computers. When applied, the researchers' test produces two percentages: how close it estimates The quantum computer is to the correct result and how confident a user can be of that closeness. The researchers have proposed an alternative method that involves using the quantum computer to run a number of easy calculations that we already know the answer and establishing the accuracy of those results.

·        #11

Kondratev Vitaliy Em-211 (Sl Mikhailyuk) (Friday, 03 June 2022 07:15)

1.1 conduct research - проведення дослiджень
They shipped it here to conduct research.
1.2 controversial question - спiрне питання
A good example is the potentially controversial question of prevention.
1.3 considerable disagreement - значнi розбiжностi
There was considerable disagreement regarding the definition of terrorism.
2.1 Today I read article https://phys.org/news/2017-12-spacex-poised-recycled-rocket-spaceship.html This article reveals that for the first time in the world, Space X is launching rocket boosters into space, which are launched a second time. The fact is that after launch, the rocket boosters detach from the rocket and fall to Earth, after which they break or burn up. This method, which was used by Elon Max, will help reduce the cost of launching into space, and will allow re-launching some parts of the spacecraft into space. I think this discovery is very useful, and will reduce waste and the cost of missiles. https://voca.ro/1kOTWcQtVymk
2.2 Today I read the article https://phys.org/news/2022-02-mechanical-reconfigurable-intelligent-surface.html This article discusses the mechanical control of a changing intellectual surface. RIS controls electromagnetic waves with subwoofer resolution. They switch between functions by changing coding sequences. Diode RIS has disadvantages, such as
the degree of freedom of reconfiguration, limited by the principle of operation of PIN diodes.
So
, the researchers
a mechanical RIS has been developed, which has no drawbacks. RIS operates at microwave frequencies and uses a reliable control method to determine the rotation angle of the meta-atom. I find this article useful because it can take risk research to a new level.

https://voca.ro/1203A75Y9Faf

·        #10

Bimbas Danil, ES-211 (Andreikova) (Friday, 03 June 2022 01:35)

Reverse Current Braking: Understanding Plugging for Electric Motors

https://www.ambitechbrakes.com/reverse-current-braking-understanding-plugging-for-electric-motors/

The fastest way to overcome inertion and grab something is to use it in the opposite direction. This is a fairly simple principle.
Although not as destructive as a physical brake, plugging comes at the cost of efficiency. At armature, the polarity of the voltage is reversed. Now it does not repel the reinforcement, but attracts it, which effectively doubles the strength of the connection.
The DC motor braking system works by regulating the voltage on one side of the circuit and cutting off the voltage on the other.
The EMF pulls in one direction, and the inertial rotation of the motors in the other.
Because the same power that powered the engine is now working against it, the engine stops faster.
This strong braking force benefits from a combination of supply voltage and back-EMF voltage. This also generates a significant amount of heat, but without mechanical friction limiting mechanical braking.
Each type of braking has its purpose, and multiple types of braking built into the same motor provide the best results.

https://voca.ro/1atZvlEsOuFR

·        #9

Duvanskaya, from Foreign Languages Department (Thursday, 02 June 2022 12:45)

To Derbenov Illia LLN-211. Illia, your work for June 2nd is meaningful and well done. Thank you. Keep on working.

·        #8

Duvanskaya, from Foreign Languages Department (Thursday, 02 June 2022 12:40)

To A.Chaban LLN-211.Thank you for your effective work on June 2nd. Both of your tasks are informative enough but where is your exam topic?The second part of your work is to choose any exam topic and write a comment 100 words. I am waiting for your exam topic ( comment) . Check the reading of these words: legal, transmitted, architecture, Keep on working. P.S see the section in the Guestbook :Explore Graduate Exam Topics.

·        #7

Derbenov Illia LLN-211 (Duvanskaya I. F.) (Thursday, 02 June 2022 11:20)

1. Phrases of the Day
a) condition imposed by - условие, навязанное
A new study shows that lending conditions imposed by the International Monetary Fund undermine "state capacity" in developing nations...
Новое исследование показывает, что условия кредитования, навязанные Международным валютным фондом, подрывают «государственный потенциал» в развивающихся странах...
https://phys.org/news/2019-03-imf-policy-reforms-weaken-state.html

b) comparative investigation of - сравнительное исследование
The study, titled "Comparative genomic investigation of high-elevation adaptation in ectothermic snakes," was published in PNAS on July 31.
Исследование под названием «Сравнительное геномное исследование адаптации к высоте у экзотермических змей» было опубликовано в PNAS 31 июля.
https://phys.org/news/2021-11-masks-droplets-damp-respiratory-droplet.html

c) comprehensive investigation of - всестороннее исследование
While the efficacies of various dry face masks have been explored, a comprehensive investigation of wet masks is lacking.
В то время как эффективность различных сухих масок для лица была изучена, всестороннее исследование влажных масок отсутствует.
https://phys.org/news/2018-08-scientists-genomic-key-plateau.html

https://voca.ro/122EgOmAscXf

2. Article review
Topic: Electrical angle control system
I've just read the article "The revolutionary technologies that power and cool the Parker Solar Probe".
It tells about the NASA's Parker Solar Probe spacecraft that hurtled past the Sun's corona in 2018. The mission was unprecedented and required a variety of technological innovations. For instance, due to the probe being too far from Earth, wing angle control would have been possible only if the spacecraft had guided itself. That required effective autonomous software installed onboard and controlled by electrical systems with pinpoint accuracy. An error of one degree could mean energy loss of up to 35 per-cent.
In my opinion, this article does a great job of describing the importance of precision in astronautics.
https://phys.org/news/2017-06-revolutionary-technologies-power-cool-parker.html

https://voca.ro/18PNkcFFhzBk

·        #6

A.Chaban LLN-211 (Duvanskaya I.F.) (Thursday, 02 June 2022 11:12)

1.comprehensive investigation of- комплексне розслідування;
After gaining state independence increased the importance of comprehensive investigation of folklore samples.-Після здобуття державної незалежності зросла значення всебічного дослідження фольклорних зразків.
2.comparative investigation of- порівняльне дослідження ;
Comparative investigation of goods and services should be held regularly.-Порівняльні дослідження товарів і послуг повинні проводитися регулярно.
3.condition imposed by- умова, встановлена;
This new condition imposed by the Committee raises some difficult legal issues.-Ця нова умова, встановлена ​​Комітетом, викликає ряд складних правових питань.
https://voca.ro/111f9LR7aCmR

Today I've read the article about the new methods that accurately detect the deepfake videos. The ability to identify manipulated videos is neccesary as political and social opinions are transmitted in such a way.The Riverside method divides the task into two components within a deep neural network. The first branch discerns facial expressions and feeds information about the regions that contain the expression, such as the mouth, eyes, or forehead, into a second branch, known as an encoder-decoder. The encoder-decoder architecture is responsible for manipulation detection and localization. So, deep fake detection methods allow people to understand whether what they see is true or manipulative information.
https://voca.ro/1747TKrtXbmC
https://techxplore.com/news/2022-05-method-deepfake-videos-accuracy.html

·        #5

Kucher Julia, PS-211(Diachenko) (Wednesday, 01 June 2022 21:25)

Phrases of the day:
We are operating under certain assumptions that this bug occurs only on some platforms.
https://voca.ro/17RNWANWsFrG
It turns out that he was exfiltrating important data for a long time.
https://voca.ro/1708pq6fSxln
Our suspicion is well justified by a further examination of this breach.
https://voca.ro/1iU8xaTyBNTm

Article: https://techxplore.com/news/2021-05-power-river.html
Vocaroo: https://voca.ro/1apajHaJSWuZ
Today i have read the article "Innovating power generation where are river runs through it'. This article tells us about a hydroelectric. The hydroelectric power provides an alternative to fossil fuels, but not all generation methods are equally clean or economically viable. The classic 'solution' involves building a concrete dam and locating a hydroelectric power plant there, but there's all sorts of associated issues. There's the high cost of building a dam, but there's also a huge environmental impact. You restrict migration of fish, you change the local river topology, and you affect the whole ecological system around it.The hydroelectric is very practical but a little harmful to the environment.

Topic#13: The peculiarities of DC injection braking.
https://voca.ro/1cCAsBdrAivA
What is the peculiarities of DC injection braking. DC injection braking is a method of slowing AC electric motors. A DC voltage is injected into the winding of the AC motor after the AC voltage is disconnected, providing braking force to the rotor. Large rotors and loads with a high moment of inertia may take a significant amount of time to stop through inherent friction alone. To reduce downtime, or possibly as an emergency safety feature, DC injection braking can be used to quickly stop the rotor. DC brake modules are very efficient, have no consumable parts and do not require maintenance.

·        #4

Kucher Julia, PS-211(Diachenko) (Wednesday, 01 June 2022 21:04)

1.classified as
https://voca.ro/1b53pGAHQJrZ
Some group of scientists was classified as a lazy one.
2.by outlining
https://voca.ro/13r8eocgKRSH
Everything started by outlining some problems that were supposed to be solved.
3.beyond the scope of
https://voca.ro/1jRmnzRZVvLt
That article was written beyond the scope of the real opinion of the author.

Article: https://techxplore.com/news/2022-03-crowd-friendly-robotic-wheelchair.html
Vocaroo: https://voca.ro/1jUiJUZKKKz5
Today I have read an article titled "World's record entanglement storage sets up a milestone for Quantum Internet Alliance". The article tells us about how researchers from Sorbonne University in Paris have achieved a highly efficient transfer of quantum entanglement into and out of two quantum memory devices. This achievement brings a key ingredient for the scalability of a future quantum internet. A quantum internet that connects multiple locations is a key step in quantum technology roadmaps worldwide. In my opinion, it is a very interesting research and I would like to know more about quantum internet.

Topic16: Economy energy audit and management.
https://voca.ro/1bbhx4pHmqoT
What is an economy energy audit and management?
An energy audit is an inspection survey and an analysis of energy flows for energy conservation in a building. Reducing energy consumption while maintaining or improving human health, safety and comfort are of primaty concern. The energy management process starts with an energy audit to find opportunities to improve efficiency then putting it into action with a number of strategies and then tracking the progress of the made changes.
From my point of view energy audit and management are important things that help us save our money and lots of resources.

·        #3

Yaroshevskiy Maksim PC-211 (Diachenko) (Wednesday, 01 June 2022 11:24)

by outlining
I now want to address the problem of Cyprus, not by looking at the past, but by outlining my goals for the future
https://voca.ro/1cyd3tsvieHd

classified as
It's now classified as top secret
https://voca.ro/154ekAomp6YH

beyond the scope of
Many of the cases remained impressive and had far-reaching ramifications beyond the scope of application of a single human rights treaty
https://voca.ro/1n6WgVhNyVhZ



https://techxplore.com/news/2022-05-artificial-intelligence-autonomous-vehicles-idling.html
https://voca.ro/16CFBBZ34fAC

today I have read an article about how artificial intelligence will help unmanned vehicles not stand idle at red lights. A new study from MIT looks at using new technology in self-driving cars to reduce travel time, fuel consumption, or battery life. Thus, all machines will know where they are, and will be able to transmit data about their location to each other. This will help other cars to slow down or accelerate at the right moment to prevent an accident. The use of this technology will help to completely get rid of traffic lights, and reduce the number of accidents to a minimum.




Topic: Unconventional and renewable sources of energy
https://voca.ro/1npbDE3kfjqd

Every day we are gradually moving away from the usual methods of energy production to renewable sources. The first solar panel was constructed in 1948, and even now we can see how fields are dotted with them. Renewable energy sources also include wind turbines and hydroelectric power plants. Already, many countries are abandoning the usual methods of energy production, since they pollute the environment very much. So far, not all the energy in the world can be called environmentally produced, but in the near future technologies will be able to reach the required level and save the planet from an environmental disaster.

·        #2

Vytvytska Katerina PC-211 (Diachenko) (Wednesday, 01 June 2022 10:54)

by outlining
They also characterized and accounted for data uncertainty by outlining steps in each site to improve their quality over time—which will anticipate at-risk areas in need of further monitoring and evaluation.
https://voca.ro/1ez5chFi5wHj

beyond the scope of
Determining whether a quantum computer has produced a correct answer to a difficult problem is a significant challenge as, by definition, these problems are beyond the scope of an existing classical computer.
https://voca.ro/1eS4zr5Q4dip

classified as
It is the smallest unit of an organism that is classified as living, and is often called the building block of life.
https://voca.ro/1nO2zxZikje5

https://phys.org/pdf493290193.pdf
I have read the article "Quantum computers learn to mark their own work ". It tells about the tests of quantum computers. The correctness of their work is a big question, which also depends on external factors, so scientists are trying to eliminate this problem. Also, modern models of quantum computers, even under ideal external conditions, do not always solve problems correctly - more one question that scientists are working on. This article was interesting and useful, because the introduction of quantum computers technology will help humanity to solve very complex problems and make a breakthrough in chemistry, biology and medicine.
https://voca.ro/12u3Js3wNyUH
Exam topic "Stepping motor control system"
Nowadays stepper motors are becoming more and more widespread in modern technological equipment. These systems are widely used as actuators in various mechanisms in industries, automobiles and household appliances. A stepper motor is a two-coordinate transport module based on linear stepper motors, which is used to manufacture highly integrated microchips. For this purpose, a probe is used, which includes a two-coordinate transport module The stepper motor control system is designed to generate signals on the windings of the stepper motor and control the rotation speed of its shaft, as well as to control the number of rotation steps.
https://voca.ro/15H7GeGJR3At

·        #1

Sasha Mazur (PC-211, Diachenko) (Wednesday, 01 June 2022 10:34)

beyond the scope of
Economic efficiency for food production was beyond the scope of the analysis.
https://voca.ro/1bp1ZuHFViQl

classified as
Uber argues that requiring drivers to be classified as employees would leave jobs only for a small fraction
https://voca.ro/103X6nbCGrtT

by outlining
The study concludes by outlining a three-step sequence for the evolution of the metamorphic sole.
https://voca.ro/1mVFZCvfOxDm

https://techxplore.com/news/2020-08-energy-red-bricks.html
Today i have read article "Storing energy in red bricks".This is story about Red bricks.Can you Imagine plugging in to your brick house.
Red bricks—some of the world's cheapest and most familiar building materials—can be converted into energy storage units that can be charged to hold electricity, like a battery, according to new research from Washington University in St. Louis.
Now, chemists in Arts & Sciences have developed a method to make or modify "smart bricks" that can store energy until required for powering devices.
I think in future we can use this metod and use red bricks like a powerbank.
https://voca.ro/1aJomM0BwU8N

16.Electrical systems

Electrical systems, also named circuits or networks, are designed as combinations of mainly three fundamental components—resistor, capacitor, and inductor—which are correspondingly defined by resistance, capacitance, and inductance, generally considered to be lumped parameters. In addition to these primary electrical components, in this chapter, we also discuss the operational amplifier. Producing the electron motion or voltage difference in an electrical circuit are the voltage or current sources, which are the counterparts of forces or moments in mechanical systems. The focus in this chapter is the formulation of mathematical models using methods of electrical circuit analysis. Examples will be analyzed using MATLAB® and Simulink® to determine the natural, free, and forced responses of electrical systems.
https://voca.ro/1mllFZEiZDOd

 

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