Trapping gases better with boron nitride "nanopores"
What is common between a technology for storing energy in a solar cell and that for water purification? They both rely on the use of porous materials, or more specifically, 'nanoporous' materials that can trap gas molecules within narrow spaces on th.....»»
Thousands evacuated as Philippine volcano spews ash, rocks
Thousands of people living near a Philippine volcano have taken shelter in evacuation centers as officials warned Sunday of health risks from ash and toxic gases spewing from the rumbling crater......»»
What is driving the GaN patent war between US and China?
The GaN (gallium nitride) patent disputes between the US and China have existed for a long time, but not until recently did the American vendor Efficient Power Conversion Corp. (EPC) file an official lawsuit against China's top GaN maker Innoscience.....»»
New US GaN patent war may cripple exports of top China vendor
A recent patent lawsuit filed by US-based gallium nitride (GaN) technology specialist Efficient Power Conversion Corp (EPC) against China's top GaN devices vendor Innoscience Technology is likely to deter the latter from developing its sales abroad......»»
Pond emission measurements improve climate predictions
There could be billions of shallow lakes and ponds on Earth, though lack of mapping systems makes it hard to know just how many exist. Together, they emit significant amounts of greenhouse gases into the atmosphere, but emissions from these systems v.....»»
Amount of warming triggering carbon dioxide in air hits new peak, growing at near-record fast rate
The cause of global warming is showing no signs of slowing as heat-trapping carbon dioxide in Earth's atmosphere increased to record highs in its annual Spring peak, jumping at one of the fastest rates on record, officials announced Monday......»»
Exploring how we"ve underestimated Earth"s heat storage
The increase in anthropogenic greenhouse gases in the atmosphere prevents the emission of heat into space. As a result, the Earth constantly absorbs more heat through solar radiation than it can give back off through thermal radiation......»»
Modeling study: Linking carbon markets with an allowance exchange rate yields environmental, economic dividends
Carbon markets have become a critical policy tool to combat climate change. They allow firms that emit greenhouse gases to buy and sell the right to pollute, which gives the firms flexibility while also reducing carbon emissions at the lowest cost. A.....»»
Plants found to leave chemical fingerprints on an ozone-depleting gas
Methyl chloride (CH3Cl) is one of the most common chlorine-based gases in Earth's atmosphere. Along with related chemicals, it depletes the ozone layer, exposing life on the planet to more of the sun's ultraviolet radiation. The sources and processes.....»»
Mitigating climate change through restoration of coastal ecosystems
One of the primary drivers of climate change is excess greenhouse gases like carbon dioxide in the atmosphere. Mitigating climate change in the coming century will require both decarbonization—electrifying the power grid or reducing fossil fuel-guz.....»»
Absolute vs. relative efficiency: How efficient are blue LEDs, actually?
The absolute internal quantum efficiency (IQE) of indium gallium nitride (InGaN) based blue light-emitting diodes (LEDs) at low temperatures is often assumed to be 100%. However, a new study from University of Illinois Urbana-Champaign Electrical and.....»»
From mangroves to fjords, coastal ecosystems can take up or emit greenhouse gases. But globally, they"re a vital sink
Coastal ecosystems can absorb or emit the three main greenhouse gases: carbon dioxide, methane and nitrous oxide......»»
Taiwan firms stepping up SiC, GaN semiconductor deployments
The anticipated third-generation silicon carbide (SiC) and gallium nitride (GaN) semiconductor market demand has sparked Taiwan's high-tech industry's interest, with more enterprises expanding their business deployments......»»
Infineon announces two EU-wide research projects for GaN and AI developments
Infineon has announced the launch of two Euopean Union-wide three-year research projects dedicated to gallium nitride (GaN) integration and AI application......»»
Lab-grown meat"s carbon footprint potentially worse than retail beef, finds study
Lab-grown meat, which is cultured from animal cells, is often thought to be more environmentally friendly than beef because it's predicted to need less land, water and greenhouse gases than raising cattle. But in a preprint, not yet peer-reviewed, re.....»»
Antimicrobial nanonets display multifunctionality by mitigating inflammatory responses during sepsis
National University of Singapore (NUS) pharmaceutical scientists have developed multi-functional synthetic peptide nanonets for relieving inflammation caused by bacterial infection. This is achieved by concurrent trapping of bacterial endotoxins and.....»»
Uncovering universal physics in the dynamics of a quantum system
New experiments using one-dimensional gases of ultra-cold atoms reveal a universality in how quantum systems composed of many particles change over time following a large influx of energy that throws the system out of equilibrium. A team of physicist.....»»
Rohm mass producing 650V GaN HEMTs
ROHM Semiconductor has announced mass production of 650V gallium nitride (GaN) high-electron-mobility transistors (HEMT) optimized for a wide range of power supply systems applications. These new products are jointly developed with Ancora Semiconduct.....»»
Scientists detect gases from fractured rock
Geoscientists have detected specific gases being released from fractured rocks in real time after a series of small chemical explosions set underground......»»
Two trillion tons of greenhouse gases, 25 billion nukes of heat: Are we pushing Earth out of the Goldilocks zone?
Since the 18th century, humans have been taking fossil fuels out of their safe storage deep underground and burning them to generate electricity or power machinery......»»
Towards a sustainable superconductor technology with magnesium diboride super magnets
Magnesium diboride (MgB2) is a low-cost, non-toxic superconductor used in field magnets, electric motors, and generators. However, producing nanoscale boron (B) particles to fabricate MgB2 is expensive. Researchers recently tackled this issue by usin.....»»