Lifeboat Foundation

A team of researchers affiliated with multiple institutions in China and one in the U.S. has found that semiconducting crystals of indium selenide (InSe) have exceptional flexibility. In their paper published in the journal Science, the group describes testing samples of InSe and what they learned about the material. Xiaodong Han with Beijing University of Technology has published a Perspective piece outlining the work by the team in China in the same journal issue.

As the researchers note, most semiconductors are rigid, which means they are difficult to use in applications that require varied surfaces or bending. This has presented a problem for portable device makers as they attempt to respond to user demand for bendable electronics. In this new effort, the researchers in China have found one semiconductor, InSe, that is not only flexible, but is so pliable that it can be processed using rollers.

InSe, as its name implies, is a compound made from indium (a metal element often used in touchscreens) and selenium (a non-metal element). Selenium is also a 2-D semiconductor, and has come under scrutiny after researchers discovered that its bandgap matched the visible region in the electromagnetic spectrum. It has previously been studied for use in specialty optoelectronic applications. In this new effort, the researchers looked into the possibility of using it as a semiconductor in bendable portable electronic devices.

Breaking the lowest oxygen abundance record.

New results achieved by combining big data captured by the Subaru Telescope and the power of machine learning have discovered a galaxy with an extremely low oxygen abundance of 1.6% solar abundance, breaking the previous record of the lowest oxygen abundance. The measured oxygen abundance suggests that most of the stars in this galaxy formed very recently.

Continue reading “Surprisingly Recent Galaxy Discovered Using Machine Learning – May Be the Last Generation Galaxy in the Long Cosmic History” »

(WTXL) — History could be made right here in the Big Bend this weekend.

For the first time in 45 years, a NASA spacecraft with two American Astronauts on board will splash down off the coast of Florida.

The exact location of where the SpaceX Crew Dragon spacecraft will splashdown hasn’t been announced yet.

Even in a dual-socket AMD EPYC Rome/Milan server and 4 x MI100 PCIe-based accelerators, we’re looking at 128GB of HBM memory on offer with 4.9TB/sec of bandwidth. We see a drop down to 136 TFLOPs here as well.

We are looking at the purported AMD Radeon Instinct MI100 accelerator being around 13% faster in FP32 compute performance over NVIDIA’s new Ampere A100 accelerator. The performance to value ratio is much better, with the MI100 being 2.4x better value over a V100S setup, and 50% better value over Ampere A100.

face_with_colon_three circa 2010.

Admittedly, the project is a little dangerous—not because of a few little fusion reactions but because of the very flammable gas and voltages high enough to instantly kill you.

Do you know what natural ionising radiation is? Where can you find natural resources of radiation? What are the levels of natural sources of radiation in Europe? Do you know the pathways of ionising radiation? Natural radionuclides, both terrestrial and cosmogenic, migrate in the environment through different pathways: air, water, rock, soil and the food chain. Radionuclides may then enter the.

View more

Human body through ingestion (food and drinking water) and inhalation giving, so-called, internal exposure. External exposure is due to cosmic radiation and radiation from terrestrial radionuclides present in soil, rock and building materials. The first ever ‘European atlas of natural radiation’ uses informative texts, stunning photographs and striking maps to answer and explain these and other questions.

Observations of the X8.2 solar flare, which happened on 2017 September 10, could spatially resolve the distribution of the energetic electrons along the reconnection current sheet. More than 99% of them are concentrated at the bottom of the current sheet, not at the reconnection X point.

Obtaining transparent glasses made of functional coordination polymers (CPs) represents a tremendous opportunity for optical applications. In this context, the first transparent and red-emissive glasses of gold thiolate CPs have been obtained by simply applying mechanical pressure to amorphous powders of CPs.

Statistical studies of the motions of millions of stars may reveal the subtle imprint of dark matter.

See more in Physics

Click to Expand.