科学 ニュース

Study explores helping vulnerable populations escape from hurricanes with driverless cars
2024-09-11 23:28:17
When a hurricane strikes, the most vulnerable are not always able to get out in time. UT Austin scientists are using supercomputers at the Texas Advanced Computing (TACC) to study how shared autonomous vehicles (SAVs) can get people who do not have their own car into shelters out of harm's way.
Advancing power grounding systems: A novel predictive model for soil resistivity
2024-09-11 22:29:54
Proper power grounding systems are necessary for maintaining the safety and reliability of critical electrical subsystem infrastructure, such as substations. Power grounding systems provide a low-resistance path for electrical fault currents to flow into the earth, preventing electrical shocks, fires, and damage to vital equipment. Investigation of soil resistivity is crucial for designing power grounding systems.
生物由来の芯が電子チップの冷却を強化
2024-09-11 22:29:54
中国科学技術大学のイェ・ホン教授率いる研究チームは、天然の葉の気孔配列にヒントを得て、指のような細孔を備えたアルミナセラミックのバイオニック芯を開発した。彼らの研究はラングミュア誌に掲載されています。
A charge ahead: Carrier pre-intercalation techniques boost alternative battery performance
2024-09-11 22:29:54
As the demand for energy storage diversifies, the limitations of lithium supplies drive a shift toward alternative technologies. Sodium, potassium, magnesium, and zinc-ion batteries emerge as promising contenders, yet face challenges in capacity, charge-discharge rate, and stability. This backdrop underscores the need for innovative approaches like carrier pre-intercalation to elevate the electrochemical performance of electrode materials.
Can green finance effectively reduce carbon dioxide emissions while promoting economic growth?
2024-09-11 18:31:26
New research published in Business Strategy and the Environment based on information from G7 countries demonstrates that green finance—loans, investments, and incentives that support environmentally-friendly projects and activities—can reduce carbon dioxide emissions. Also, data indicate that investments in green projects are profitable.
Energy-efficient device uses solar power to turn seawater into fresh water
2024-09-11 18:31:26
Researchers at the University of Waterloo have designed an energy-efficient device that produces drinking water from seawater using an evaporation process driven largely by the sun.
Multimodal ultra-thin soft robots can explore narrow spaces for inspection and maintenance
2024-09-11 17:13:00
Researchers at Rolls-Royce University Technology Centre (UTC) in Manufacturing and On-Wing Technology at the University of Nottingham have developed ultra-thin soft robots, designed for exploring narrow spaces in challenging built environments. The research is published in the journal Nature Communications.
Algorithm takes robots a step closer to being able to 'act on intuition'
2024-09-11 17:12:59
Researchers from the University of Hertfordshire have developed a new algorithm that will allow robots to function more intuitively—that is, make decisions using their environment for guidance.
Novel compact meta-silencer design leverages acoustic black hole and rainbow trapping effects
2024-09-11 17:00:11
Chronic low-frequency noise from vehicles, appliances, and industries takes a toll on mental health, causing stress and anxiety. Traditional acoustic silencers require bulky designs to achieve effective noise reduction at low frequencies.
Opinion: With a million home batteries, Australia could build far fewer power lines. It just needs the right incentives
2024-09-11 17:00:11
It's no secret Australia has abundant and cheap renewable energy, especially wind and solar power. But yes, there are times when the sun doesn't shine and the wind doesn't blow. We need energy storage to get us through those still nights and dreary days.
South Africa's green hydrogen hub: EU grants not nearly enough to get industry going, say chemical engineers
2024-09-11 17:00:10
South Africa is poised to become a major player in the global energy transition, thanks to its vast renewable energy resources (sun and wind) and its plans for green hydrogen production.
Viewpoint: Making fuels from plastics in Newaygo, Michigan, would be controversial
2024-09-11 17:00:10
Humans generate a lot of plastic waste—more than 400 million metric tons a year.
Neuromorphic platform presents significant leap forward in computing efficiency
2024-09-11 17:00:09
Researchers at the Indian Institute of Science (IISc) have developed a brain-inspired analog computing platform capable of storing and processing data in an astonishing 16,500 conductance states within a molecular film. Published today in the journal Nature, this breakthrough represents a huge step forward over traditional digital computers in which data storage and processing are limited to just two states.
Researchers demonstrate pavement markers that transmit lane information to self-driving cars
2024-09-10 20:55:30
On a recent morning, a self-driving car navigated a curvy Chattanooga street by "listening" to the road's reflective lane markers. Oak Ridge National Laboratory and Western Michigan University researchers demonstrated the technology to officials with the City of Chattanooga and Hamilton County, Tennessee.
Bidirectional coordinator enhances ion arrangement in perovskite solar cells
2024-09-10 20:10:11
A joint research team from the School of Energy and Chemical Engineering and the Department of Chemistry at UNIST has addressed critical challenges in perovskite solar cell (PSC) production, significantly enhancing both their efficiency and stability, which is expected to further bolster their commercialization potential.
Research highlights the role of urban underground space in achieving carbon neutrality
2024-09-10 20:10:10
A study published in Engineering has shed light on the pivotal role of urban underground space (UUS) development in achieving carbon neutrality, with significant implications for sustainable urban development in China and beyond.
Defect passivation strategy improves perovskite solar cell efficiency
2024-09-10 16:36:47
Solar energy is a promising way of reducing our dependence on fossil-fuel-based energy resources to opt for cleaner energy forms. Over the years, solar cells that can harness this renewable energy have undergone significant progress.
Stretchable, wearable device lights up an LED using only the warmth of skin
2024-09-10 16:36:47
One of the drawbacks of fitness trackers and other wearable devices is that their batteries eventually run out of juice. But what if in the future, wearable technology could use body heat to power itself?
炭素繊維構造バッテリーが軽量でエネルギー効率の高い車両への道を開く
2024-09-10 15:37:19
自動車、飛行機、船舶、コンピューターがバッテリーと耐荷重構造の両方として機能する材料で作られると、重量とエネルギー消費が大幅に削減されます。スウェーデンのチャルマーズ工科大学の研究グループは現在、いわゆるマスレスエネルギー貯蔵における世界をリードする進歩を発表している。これはラップトップの重量を半分にし、携帯電話をクレジットカードと同じくらい薄くするか、あるいは重量を増やすことができる構造バッテリーである。1 回の充電で電気自動車の航続距離を最大 70% 延長します。
Molecular level changes translate to big efficiency gains for organic solar cells
2024-09-10 15:37:18
Organic solar cells (OSCs)—promising alternatives to traditional inorganic solar cells—have many features that make them key players in a greener future. One of these features is tunable chemistry, which allows scientists to precisely adjust or modify the properties of chemical systems to achieve desired outcomes. Now, researchers from Japan have tuned them to increase power conversion efficiency.

Showing 281 to 300 of 2359 results

页面生成时间: 473.05 毫秒