ZURICH (Reuters) – Chinese telecom giant Huawei is finding it harder to counter U.S. sanctions designed to choke off its access to semiconductors but can continue to serve European 5G network clients, a senior European executive told an Austrian newspaper.
The world’s biggest maker of mobile telecommunications equipment and smartphones was still “looking for a solution” to help millions of Huawei phone users after Google
was banned from providing technical support for new Huawei phone models using mobile operating system Android.
“Since the U.S. sanctions last year, U.S. manufacturers of semiconductors are no longer allowed to supply us so our previous U.S. partners can no longer work with us. Since August it has become even more difficult,” Abraham Liu, Huwaei’s vice-president for Europe, told the Kurier paper.
He said Washington was “blackmailing” chipmakers into shunning ties with Huawei, which denies U.S. allegations that Huawei equipment could be used by Beijing
(Bloomberg) — Climate scientists warned 2020 could be the world’s hottest year on record, with September temperatures eclipsing previous highs and Arctic ice retreating from the seas it usually covers.
Global year-to-date temperatures show little deviation from 2016, the warmest calendar year recorded so far, Europe’s Copernicus Climate Change Service reported on Wednesday. Climate patterns like La Niña in the Pacific Ocean, occurring for the first time in eight years, could determine whether this year turns out to be the warmest on record, according to the researchers.
In September, temperatures reached 0.63 degrees Celsius (1.15 degrees Fahrenheit) above the 30-year historical average, with the Siberian Arctic and southeastern Europe in particular feeling the warming effects of climate change. Arctic sea ice reached its second-lowest extent for September, continuing a fast decline since satellites started monitoring the ice in 1979.
Led by the Department of Energy’s Oak Ridge National Laboratory and the University of Tennessee, Knoxville, a study of a solar-energy material with a bright future revealed a way to slow phonons, the waves that transport heat. The discovery could improve novel hot-carrier solar cells, which convert sunlight to electricity more efficiently than conventional solar cells by harnessing photogenerated charge carriers before they lose energy to heat.
“We showed that the thermal transport and charge-carrier cooling time can be manipulated by changing the mass of hydrogen atoms in a photovoltaic material,” said ORNL’s Michael Manley. “This route for extending the lifetime of charge carriers bares new strategies for achieving record solar-to-electric conversion efficiency in novel hot-carrier solar cells.”
UT’s Mahshid Ahmadi noted, “Tuning the organic-molecule dynamics can enable control of phonons important to thermal conductivity in organometallic perovskites.” These semiconducting materials are promising for photovoltaic applications.
TAINAN, Taiwan — The United States and China are wrestling to lead the world in artificial intelligence, 5G wireless and other cutting-edge technologies. But the real wizardry that makes those advancements possible is being performed on a yam-shaped island that sits between them, geographically and politically.
On Taiwan’s southern rim, inside an arena-size facility stretched out among lush greenery and coconut palms, colossal machines are manipulating matter at unimaginably tiny scale. A powerful laser vaporizes droplets of molten tin, causing them to emit ultraviolet light. Mirrors focus the light into a beam, which draws features into a silicon wafer with the precision, as one researcher put it, “equivalent to shooting an arrow from Earth to hit an apple placed on the moon.”
The high-performance computer chips that emerge from this process go into the brains of the latest tech products from both sides of the Pacific. Or at least they
Small-scale fisheries are a critical component of the social and economic and fabric of coastal communities in the Caribbean and are key to the region’s food security, with annual fish consumption ranging between 10 and 35 kg/capita per year (FAO, 2014). But marine heat waves (MHW) or extended periods of anomalously warm ocean temperatures1 can have major impacts on marine biodiversity and ecosystems, and are a significant threat to the regional fisheries sector. A 2019 study in journal, Nature Climate Change, reports that coral reefs in the Caribbean have been among the hardest hit by heat waves, and the Food and Agriculture Organisation has found that the Caribbean fisheries sector is most vulnerable to climate change in the world. (Monnereau, 2017)
According to a September article in journal, Science, as global warming makes oceans hotter, marine heat waves (MHW) have become at least 20 times more likely. “The duration,
He said there “was nothing to be concerned with at all times. The astronauts were safe, and the vehicle was working perfectly.” The heat shield is a vital component of the spacecraft that protects the astronauts as they plunge through the thickening atmosphere, creating temperatures that reach as high as 3,500 degrees Fahrenheit.
In addition to reinforcing the part of the heat shield, he said the company is refining how it measures the capsule’s altitude as it returns to Earth. During the August test flight, the drogue parachutes deployed at a slightly lower altitude than the company expected, but still well within safety parameters, he said.
Finally, SpaceX and NASA are working with the Coast Guard to create a 10-mile “keep-out zone” around the spacecraft once its splashes down in the Atlantic Ocean or Gulf of Mexico.
During the test mission, recreational boats swarmed the vehicle, still loaded with volatile
Unusually hot zones in the ocean likely will become longer, more frequent.
September 27, 2020, 11:04 AM
• 4 min read
This is an Inside Science story.
Marine heat waves can wreak havoc on fisheries, coral reefs, kelp forests and other vital ocean ecosystems. In a new paper in the journal Science, climate scientists revealed strong evidence that future marine heat waves will intensify and occur much more frequently as a direct result of anthropogenic climate change.
The scientists, led by postdoctoral researcher Charlotte Laufkötter at the University of Bern in Switzerland, focused on seven well-documented marine heat waves from the past decade. For each hot spell, they calculated the relative probabilities that a similar event could have occurred with and without human influence. They found that human activities such as greenhouse gas emissions made the heat waves much more likely
As the COVID-19 pandemic swept around the world early this year, shortages of protective equipment such as N95 masks left healthcare workers little choice but to reuse the masks they had — increasing the risk of infection for both them and their patients.
Now, researchers at the Department of Energy’s SLAC National Accelerator Laboratory, Stanford University and the University of Texas Medical Branch may have a solution: Using a combination of moderate heat and high relative humidity, the team was able to disinfect N95 mask materials without hampering their ability to filter out viruses.
What’s more, it should not be too difficult to turn the new results into an automated system hospitals could use in short order — because the process is so simple, it might take just a few months to design and test a device.
“This is really an issue, so if you can find a way to
The Department of Justice proposed legislation Wednesday that would weaken legal liability protections for social media companies, like Facebook and Twitter, and hold them accountable for how they moderate content on their platforms. The news comes as the Trump administration turns up the heat on big tech companies as the 2020 US presidential race gets into full swing.
Specifically, the new law if passed by Congress and signed by the president, would alter the criteria online platforms must meet to benefit from liability protections granted by Section 230 of the Communications Decency Act.
“For too long Section 230 has provided a shield for online platforms to operate with impunity,” Attorney