Cooling fabric conditioner. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

Cooling Fabric Conditioner

29.07.2020

Cooling rooms during the intense summer heat is quite a challenge, especially in the most heat-prone regions of our planet. Sometimes, no matter how often or how long the air conditioner runs, the indoor temperature still remains quite uncomfortable, and given that in the US alone, air conditioning equipment consumes more than 10% of the annual electricity, it becomes clear that you need to pay attention to some more efficient and versatile ways to implement cooling. This is what was proposed by the development team from the US Energy Administration.

Scientists have created a special type of fabric that perfectly converts heat and allows liquid to evaporate from the surface of the skin, while at the same time perfectly repels water - thus, this fabric is basically designed to be used on the person himself, as a kind of accessory to wear. The material itself for this fabric was created using electrorotational procedures with a polyurethane polymer and a water-repellent version of the polymer known as polyurethane fluorinate.

During subsequent refinement and material development sessions, the development team also added a highly conductive filler made primarily from boron nitride nanosheets. It is this component that allows the new evaporating tissue to effectively remove excess water from the skin surface, while not increasing the maximum amount of thermal and electrical energy expended in the process of implementing such a complex and multilateral conversion.

One way or another, the new polymer fabric is not yet intended for mass distribution on the market, even as a secondary device - the fact is that the developers will first have to conduct fairly complex and lengthy tests in order to identify certain weaknesses and shortcomings regarding such a fabric. In any case, there is no doubt that experts will soon present something unusual.

<< Back: Simple greenhouse gas sensor 30.07.2020

>> Forward: Erasing memories 29.07.2020

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

The shortest electronic explosion is generated 27.02.2023

Have you ever wondered why your computer and other electronic devices are sometimes fast and sometimes slow? It all comes down to the speed at which electrons, the smallest particles of our microcosm, flow out of tiny wires inside the transistors of electronic circuits and create pulses. Developing ways to increase this speed is critical to unlocking the greatest performance potential of electronics and its software.

But what is the shortest time for electrons to flow out of tiny lead metal in an electronic circuit?

Using extremely short laser flashes, a team of researchers led by Prof. Eleftherios Gulielmakis, head of the Extreme Photonics Group at the Institute of Physics at the University of Rostock, and staff at the Max Planck Institute for Solid State Research in Stuttgart used the state of the art today.

While it has long been known that light can release electrons from metals (Einstein was the first to explain how), this process is extremely difficult to manipulate. The electric field of light changes direction about a million billion times per second, making it difficult to control how it strips electrons from the surface of metals.

To overcome this problem, the Rostock scientists and their colleagues used a state-of-the-art technology previously developed by their group - light field fusion - which allowed them to reduce the flash of light to less than the full swing of its own field. In turn, they used these flashes to illuminate the tip of a tungsten needle to release electrons into the vacuum.

"By using light pulses containing just one cycle of their field, it is now possible to give electrons a precisely controlled shock to free them from the tungsten tip in a very short time frame," explains Eleftherios Gulielmakis, head of the research team.

But this problem would be impossible to solve if scientists also did not find a way to measure the short duration of these electron flashes. To overcome this hurdle, the team developed a new type of camera that can take snapshots of electrons for a short time as a laser pushes them out of the nanotip and into a vacuum.

"The trick was to use a second, very weak flash of light," said Dr. Hee-Yong Kim, lead author of the new study. "This second laser burst can gently distort the energy of the electron explosion to see what it looks like over time," he adds. "It's like a game of 'What's in the box' where players try to recognize an object without looking at it, but simply by turning it around to feel its shape with their hands," he continues.

But how can this technology be used in electronics? "As the technology advances rapidly, it's reasonable to expect the development of microscopic electronic circuits in which electrons move through vacuum space among densely packed lead to prevent obstacles slowing them down," Gulielmakis says. "Using light to eject electrons and moving them between these wires could speed up future electronics by a factor of several thousand compared to today," he explains.

But the researchers believe that their recently developed methodology will be used specifically for scientific purposes. "Ejection of electrons from a metal within a fraction of a light field cycle greatly simplifies experiments and allows us to use advanced theoretical methods to understand electron emission in a way not previously possible," says Professor Thomas Fennell, co-author of the study.

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews