Guestbook-June-2022-(ІМІ)

Medical engineering

|Медична інженерія(ІМІ)

Guestbook – June 2022

· #25

· Tsapenko to Troianovska PhD-1 (Sunday, 19 June 2022 10:37)

Thanks for your comments, they are intersting to read. Good luck!

· #24

Tsapenko to Evgeniy Muromskyi, PhD_1 (Sunday, 19 June 2022 10:32)

All your tasks are well done. Thanks for your effective work. Good luck!

· #23

Troianovska PhD-1 (Tsapenko) (Friday, 17 June 2022 13:54)

https://doi.org/10.3390/rs10050691
https://voca.ro/13CIdjz6Zybb
Comment:
I have read the article “Implementation of the LandTrendr Algorithm on Google Earth Engine”.
The LandTrendr (LT) algorithm is widely used to analyze changes in Landsat spectral time series. The Google Earth Engine (GEE) platform simplifies the pre-processing steps by allowing you to focus on translating the basic time segmentation algorithm. Researchers have described key decisions and conclusions regarding the translation of the original IDL-based LT code (LT-IDL) into an equivalent GEE algorithm (LT-GEE) and made simple tests to ensure the accuracy of the LT-GEE implementation.
In my opinion, the modern GEE platform calls for a revision of familiar algorithms and their improvement.
Summary:
This paper introduce the LandTrendr algorithm for GEE platform.

· #22

Troianovska PhD-1 (Tsapenko) (Friday, 17 June 2022 13:04)

https://doi.org/10.1109/JSTARS.2020.3039554
https://voca.ro/1gUnn2yTISpp
Comment:
I have read the article “A Threshold Method for Robust and Fast Estimation of Land-Surface Phenology Using Google Earth Engine”.
Phenology has recently gained in importance because of global warming. The number of studies of land surface phenology (LSP) using cloud platforms is small. After analyzing the performance of LSP algorithms, a new method the maximum separation (MS) was proposed. Dissemination of code in Google Earth Engine (GEE) allows the reproduction of results and rapid processing of LSP indicators by the scientific community.
In my opinion, the phenology of the earth's surface helps to understand the effects of climate change.
Summary:
This paper analyzes the performance of state-of-the-art LSP algorithms and proposes a new threshold-based method - MS implemented in GEE.

· #21

Troianovska PhD-1 (Tsapenko) (Friday, 17 June 2022 11:45)

http://dx.doi.org/10.1016/j.rse.2017.06.031
https://voca.ro/1HoooxbVXXNq
Comment:
I have read the article “Google Earth Engine: Planetary-scale geospatial analysis for everyone”.
Google Earth Engine(GEE) is a cloud platform for geospatial analysis on a planetary scale. This system helps to solve various social problems. It is unique in this field as an integrated platform designed to empower remote sensing scientists and to use supercomputers or large-scale cloud computing resources. Based on an algorithm developed on GEE, you can create systematic data or deploy interactive programs, easily share your results with other researchers.
In my opinion, the advent of the GEE platform has made it possible for many people to access geospatial analysis on a planetary scale.
Summary:
The article describes the possibilities of a unique cloud-based platform for planetary-scale geospatial analysis.

· #20

Evgeniy Muromskyi, PhD_1 (Tsapenko) (Thursday, 16 June 2022 15:32)

https://world-nuclear.org/information-library/economic-aspects/economics-of-nuclear-power.aspx
https://vocaroo.com/192oTNjWyF2a
Comment: Today I read the article ‘’Economics of Nuclear Power’’. The cost-effectiveness of nuclear power plants has such advantages as: competitiveness, minimal fuel costs, low system costs for nuclear power, creating incentives for long-term large capital investments, the prospect of developing as a large infrastructure project. The main economic indicator for any generating plant is the present value of electricity. This is the total cost of building and operating a power plant over its lifetime divided by the total electricity supplied by the power plant during that period, hence usually the cost per megawatt hour. In addition to centrally planned economies, many projects combine public financial incentives, private capital, and long-term power purchase arrangements. Therefore, nuclear energy is economically profitable.
Summary: The article showed how profitable nuclear energy can be.

· #19

Evgeniy Muromskyi, PhD_1 (Tsapenko) (Thursday, 16 June 2022 15:30)

https://world-nuclear.org/information-library/safety-and-security/safety-of-plants/safety-of-nuclear-power-reactors.aspx#:~:text=The%20evidence%20over%20six%20decades,with%20other%20commonly%20accepted%20risks.
https://vocaroo.com/1k5VTqBzjRWI
Comment: Today I read the article ''Safety of Nuclear Power Reactors''. Nuclear power plant safety ensures the prevention of radioactive releases, excludes the misuse of nuclear materials and guarantees a focus on deterring the actions of states that could lead to the acquisition or development of nuclear weapons. Despite the sad history of the disaster at the Chernobyl nuclear power plant and Fukushima, the nuclear power industry does not include defective parts in its equipment and has a safe geographical location. This holds the international nuclear power plant safety communities such as the World Association of Nuclear Power Plant Operators, the International Atomic Energy Agency and so on. Therefore, today the world can safely produce heat and light with the safest energy industry, namely nuclear energy.
Summary: The article show us nuclear power plants not only from an economically advantageous side, but also from a safe one.

· #18

Evgeniy Muromskyi, PhD_1 (Tsapenko) (Tuesday, 14 June 2022 22:51)

https://phys.org/news/2022-06-theoretical-physicist.html
https://vocaroo.com/1x6Z2L4tvbcr
Comment: I read the article ‘’ Can we time travel? A theoretical physicist provides some answers’’. Is time travel possible? The simplest answer is that time travel is impossible, because if it were possible, we would already be doing it. According to the law of physics, scientists argue that time travel is not only impossible, but the interweaving of the past and the future is not broken. Even the ancient emperors said that if time flows, then it moves at a speed of one second per second, which is not very useful for the human mind. Stephen Hawking himself suggested that there should be a ‘chronology protection hypothesis’, which is an unknown physical principle. So the answer is ''no''. Time travel is impossible.
Summary: The article show us that not all human dreams can be realized.

· #17

Evgeniy Muromskyi, PhD_1 (Tsapenko) (Tuesday, 14 June 2022 22:48)

https://world-nuclear.org/information-library/current-and-future-generation/nuclear-power-in-the-world-today.aspx
https://vocaroo.com/1izUt1O7XsQu
Comment: I read the article ''Nuclear Power Today''. About 10% of the world's electricity is generated by about 440 nuclear power reactors. To date, the performance of nuclear reactors has greatly improved over time. Despite the outbreak of the COVID-19 epidemic in 2020, 66 % of reactors achieved a power factor above 80 % compared to less than 30 % in the 1970s, while only 9% of reactors had a power factor below 50 % in 2020 compared to just over 20 % in the 1970s. It is also noteworthy that the power factor of reactors over the past five years has not seen a significant age trend. Therefore, nuclear energy has improved so much today that such an element as a nuclear reactor is also used for military purposes.
Summary: The article show us how today nuclear power is increasing its power

· #16

Troianovska PhD-1 (Tsapenko) (Monday, 13 June 2022 18:51)

https://phys.org/news/2022-04-gotta-spiders-catapult-sex-death.html
in order to avoid
https://voca.ro/12FoEecuVVvt
Comment:
I have read the article “Gotta bounce: Some spiders catapult away after sex to avoid death”.
A group of Chinese scientists have discovered that the male spiders Philoponella prominens are thrown away from their partners, with an acceleration of 20 G, not to be killed and eaten by females. They perform a catapult in a split second by folding the tibia-metatarsus joint of their first pair of legs against the females. In half of the matings, the male catapulted and thus survived. The opening required high-speed, high-resolution cameras.
In my opinion, different types of living beings use different types of behavior that ensure the natural selection of the species.
Summary: This article discusses that spiders females judged the sexual fitness of males by their ability to escape.

· #15

Troianovska PhD-1 (Tsapenko) (Friday, 10 June 2022 15:29)

http://dx.doi.org/10.14257/ijsip.2016.9.3.10
https://voca.ro/1l5UF34WrVww
Comment:
I have read the article “A Comparative Study of Various Image Filtering Techniques for Removing Various Noisy Pixels in Aerial Image”.
Noise is one of the barriers to automatic understanding of an image, and noise reduction is very important to improve the results of further processing. In this article, it was applied the mean filter, median filter, Wiener filter, wavelet transform, and curvelet transform to remove various levels of Gaussian noise, salt and pepper noise, and speckle noise.
In my opinion, aerial image recognition is useful, especially these days, and noise filters provide better quality.
Summary:
This article describes various image noise filtering techniques.

· #14

Evgeniy Muromskyi, PhD_1 (Tsapenko) (Monday, 06 June 2022 19:46)

https://phys.org/news/2022-06-scientists-breakthrough-life-earthand-mars.html
https://vocaroo.com/1nuomZZlkKdn
Comment: I read the article ‘’Scientists announce a breakthrough in determining life’s origin on Earth – and maybe Mars’’. Scientists have found that pisconucleic acid is formed on basalt lava glass, which are still preserved on Mars today. Communities studying the origin of life have diverged in recent years. One community of scientists is leaning towards the complex chemistry by which balsamic glass is formed. Another community of scientists have investigated that nucleic acid ribs are formed when nucleoside triphosphates seep through balsamic glass. Scientists have not yet come to a conclusion. Did fish nucleic acid create life on Mars? This issue is being investigated further and scientists will try to resolve it as soon as possible.
Summary: The article show us that there is life on Mars and scientists are learning life on Mars every time.

· #13

Petrova E.I. (Monday, 06 June 2022 10:23)

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.

· #12

Petrova E.I. (Monday, 06 June 2022 10:19)

· #11

Yurii Fylonych, PhD-1 (Tsapenko) (Monday, 06 June 2022 09:33)

Link: https://techxplore.com/news/2022-05-quadcopter-air-underwater-suction-cup.html.
Title: "A quadcopter that works in the air and underwater and also has a suction cup for hitching a ride on a host".
Phrase of the day practice: "ability to achieve".
Voice record link: https://voca.ro/1bZxfRrszLa5.
Comment.
I have read the article about a quadcopter drone that is capable of flying in the air and maneuvering underwater developed by researchers at Beihang University.
The article tells us that the researchers looked into the feasibility of a drone that could hitch a ride, similar to the remora fish. To that end, the researchers created a four layers suction disc using a 3D printer and modeled it after the one sported by the remora.
In my opinion, such technologies allow us to explore the underwater world in more detail and get new discoveries.
Summary.
The quadcopter drone was developed that can fly as normal in the air and also maneuvers under the water.

· #10

Yurii Fylonych, PhD-1 (Tsapenko) (Monday, 06 June 2022 08:39)

Link: https://phys.org/news/2021-10-breakthrough-droplet.html.
Title: "A breakthrough in droplet manipulation".
Phrase of the day practice: "a breakthrough in".
Voice record link: https://voca.ro/1cLMdMt13A6b.
Comment.
I have read the article about an innovative way to navigate liquids on a surface in the absence of external force or energy.
The article tells us that when a cold/hot or volatile droplet is liberated on a lubricated piezoelectric crystal (lithium niobate) at ambient temperature, the droplet instantaneously propels for a long distance (which can be ~50 times the droplet radius) in furcated routes. Depending on the crystal plane that interfaces with the droplet, the self-propulsion can be unidirectional, bifurcated, and even trifurcated.
In my opinion, this is an unforeseen phenomenon with far-reaching implications.
Summary.
The survey enables an innovative way to deliver and transport liquids with controllability, versatility and performance, and provides clues for solving some long-standing challenges.

· #9

Yurii Fylonych, PhD-1 (Tsapenko) (Monday, 06 June 2022 08:14)

Title: "Report reinforces nuclear's role in EU low-carbon energy system".
Independent work.
Voice record link: https://voca.ro/17S3AHPGgrm1
Comment.
I have read the article about the necessity of the additional flexible capacity backup installation such as the low-carbon energy system based on variable renewables in the nearest features. The article tells us that, in the short to medium-term, the continued operation of Europe's existing nuclear power plant fleet will help EU meet emission targets and would avoid the temporary increase of the emissions that could risk locking in fossil fuel investments. In the longer term, nuclear energy can support variable renewable sources by providing proven, carbon-free dependable power and flexibility to the system and reducing the system's reliance on yet unproven storage technologies. In my opinion, phase-out from nuclear power plants will trigger an increase in consumer costs, especially the electricity tariffs, and also result in negative environmental impacts.
Summary.
Nuclear technologies provide a key competitive advantage as it is the only dispatchable, low-carbon and non-weather-dependent technology which can support the energy system transition under secure conditions.

· #8

Yurii Fylonych, PhD-1 (Tsapenko) (Monday, 06 June 2022 08:13)

Link: https://www.world-nuclear-news.org/Articles/Canadian-waste-organisation-completes-borehole-pro
Title: "Canadian waste organization completes borehole program".
Independent work.
Voice record link: https://voca.ro/1n3J95o63OVf.
Comment.
I have read the article about the implementation and milestones of Canada's plan for the safe, long-term management of used fuel, known as Adaptive Phased Management. The article tells us that Canada's Nuclear Waste Management Organization has completed its deep borehole drilling program to understand the subsurface geology in the two areas that will potentially host a deep geological repository for the nation's used nuclear fuel. The program will help inform the final selection of a site. Canada's Nuclear Waste Management Organization remains on track to complete the site selection in 2023
In my opinion, the completion of the drilling program is a significant step forward in the geoscience work and the resulting data will also provide important insights to the nuclear communities and countries such as Ukraine.
Summary.
Deep geological repositories are internationally recognized as the safest way to manage used nuclear fuel over the very long term.

· #7

Liudmyla Panchuk, PhD_1 (Tsapenko) (Sunday, 05 June 2022 21:50)

https://phys.org/news/2021-09-benefit-employees.html
I have read the article “Study shows benefit of employees managing themselves”. More and more U.S. companies rely on self-leadership rather than leadership. Self-leadership shows the influence of employees on their behavior, mood and thoughts. Research journals have shown that self-leaders are more active, creative and more confident. Given Covid-19, more and more U.S. workers are working from home. Because of this, their bosses cannot control them, which is why it turns out that these workers become self-leaders. A group of scientists are working on studies that investigated self-leadership in companies. More open people tend to become self-leaders. Companies should encourage the achievements of self-leaders. This gives them an incentive to develop in the field of their work. However, more and more self-leaders are retiring, finding themselves a better and more rewarding job. The researchers could not rely on just one study. Therefore, they conducted a lot of researches and got the final results. Self-leaders are usually athletes and celebrities who want to develop more and more in their field. "Elon Musk, Jeff Bezos and Reed Hastings" are great examples of self-leadership.
In my opinion self-leaders are more perspective kind of workers and such work type can give greater results by thinking people.
https://voca.ro/19XwFfz1KiOA

· #6

Duvanskaya, from Foreign Languages Department (Saturday, 04 June 2022 11:59)

To Rupenko SFV-211.Dima, thanks for your regular effective work. Your work on June 3rd is meaningful and well done! Keep on working.

· #5

Evgeniy Muromskyi, PhD_1 (Tsapenko) (Friday, 03 June 2022 21:55)

https://phys.org/news/2021-06-sun-clock-planetary-hypothesis.html
https://vocaroo.com/1llaF04EY2q1
Comment : I have read the article ''The sun's clock: New calculations support and expand planetary hypothesis''. It indicates the perplexity of physicists around the world who have long sought a satisfactory explanation for the many cyclical, overlapping fluctuations in solar activity. The researchers came up with the idea that some of the Sun's orbital angular momentum could be transferred to its rotation and thus affect the internal dynamo, the process that creates the Sun's magnetic field. With this idea, the overthrown magnetic fields could more easily attach themselves to the surface of the Sun. Therefore, some researchers decided to propose to the world community to integrate the rhythmic perturbation of the tachocline into their previous model calculations of a typical solar dynamo. As a result, it is possible to reproduce several cyclic phenomena.
Summary : This article showed us how the human factor can not only change the planet Earth, but can also change cosmic processes

· #4

Evgeniy Muromskyi, PhD_1 (Tsapenko) (Friday, 03 June 2022 21:19)

https://wiseinternational.org/nuclear-monitor/877/fallout-hbo-chernobyl-miniseries
https://vocaroo.com/15orI149A3kJ
Comment : I have read the article ‘’ Fallout from the HBO Chernobyl miniseries’’. The five-episode HBO mini-series Chernobyl has been watched by millions and tops IMDB's list of the greatest TV shows of all time. The World Nuclear Association (WNA) says the mini-series has led to an increase in user interest in the disaster. The series shows a highly artistic picture of what is happening. It also has great acting. For example, a metamorphosis of characters, where one of the main characters at the beginning of the series is an arrogant bureaucrat confident in the success of his task, and at the end a sick, irradiated man with a big demon of doubt inside is shown. Experts in the energy sector note the highly artistic picture of this project, but the unreliability of what is happening.
Summary : The article shows us that this series is artistically excellent, but questions remain about the authenticity of the series.

· #3

Troianovska PhD-1 (Tsapenko) (Friday, 03 June 2022 20:11)

https://doi.org/10.1007/s00704-019-02973-y
https://voca.ro/12w6UmZ0P6cU
Comment:
I have read the article “Air temperature in Barcelona metropolitan region from MODIS satellite and GIS data”.
The methodology has been developed for estimating, from satellite measurements, of the varied and complex spatial distribution of temperatures in the Barcelona metropolitan area.
A systematic and detailed spatial description of temperatures can greatly improve the analysis of cold and hot flares. These analyzes can be very useful in studying the impact of temperatures on citizens.
In my opinion, the study temperatures distribution can improve on the quality of life and people health.
Summary:
This article describes methodology for estimating temperatures distribution air from satellite measurements in a metropolitan area.

· #2

Evgeniy Muromskyi, PhD_1 (Tsapenko) (Friday, 03 June 2022 20:05)

https://wiseinternational.org/nuclear-monitor/823/chernobyl-and-fukushima-radioactivity-has-seriously-harmed-wildlife
https://vocaroo.com/1b26FrzAHf5m
Comment : I have read the article ‘’At Chernobyl and Fukusima, radioactivity has seriously harmed wildlife’’. After the explosion at the Chernobyl nuclear power plant, smelting, explosions and a nuclear fire that burned for 10 days released a huge amount of radioactivity into the atmosphere and polluted vast areas of Europe and Eurasia. According to experts, Chernobyl released into the atmosphere 400 times more radioactivity than the bomb dropped on Hiroshima in. At Fukushima, the situation is easier than at Chernobyl. At Fukushima, the accident resulted in the release of about one-tenth the amount of radioactive material compared to the Chernobyl disaster. To prevent such catastrophes, scientists have come to the conclusion that it is necessary to eliminate the consequences of future incidents, which is necessary to come to a compromise in relation to the energy policy in the world.
Summary : The article show us a description of the impact of nuclear disasters on nature and the need to prevent them.

· #1

Rupenko SFV211 (Duvanskaya) (Friday, 03 June 2022 13:09)

New light on the controversial question of species abundance and population density
https://voca.ro/11VoA5ayX8p6
Нове світло на спірне питання про численість видів та щільність популяції

There's been considerable disagreement among lawmakers and the space community on how best to accomplish this.
https://voca.ro/1adRupr3Kq3R
Між законодавцями та космічним співтовариством існують значні розбіжності щодо того, як найкраще цього досягти.

But lack of connectivity severely hinders an organization's ability to perform simple functions, conduct research, and compete for grants
https://voca.ro/1nFggqmHDEwH
Однак відсутність зв'язку серйозно обмежує здатність організації виконувати прості функції, проводити дослідження та конкурувати за гранти.

Movement: The Keystone of Physical Education and Sport
https://studylib.net/doc/10107093/movement--the-keystone-of-physical-education-and-sport
https://voca.ro/1cCsDxcAm8Cp
There are many sports from ping pong to weightlifting and you know what they have in common – movement. Movement is the basis of almost all living species, and the same can be said about sports and physical education, no matter what activity you do, you will still be moving. The only difference is that in different sports a person moves differently. And you can argue for a long time about how to be healthy, how to succeed in sports and about the benefits of sports, but here is the answer to these questions – movement. And as long as a person keeps moving he will live and improve.