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Here is your SHAB TECHNOLOGY PLANET customized technology news for May 17 , 2021.
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🗞 TECHNOLOGY NEWS💻🔧🖥:
SURVNET: A BACKWARD ELIMINATION PROCEDURE TO ENHANCE VARIABLE SELECTION FOR DEEP NEURAL NETWORKS
In recent years, models based on deep neural networks have achieved remarkable results on numerous tasks. Despite their high prediction accuracy, these models are known for their “black-box” nature, which essentially means that the processes that lead to their predictions are difficult to interpret.
YOUR OLD MOBILE PHONE NUMBER COULD COMPROMISE YOUR CYBERSECURITY
The Department of Computer Science and Center for Information Technology Policy at Princeton University has conducted a study and released a paper assessing the security and privacy risks of phone number recycling by mobile characters in the United States.
CRICKET BATS SHOULD BE MADE FROM BAMBOO NOT WILLOW, STUDY FINDS
Bamboo cricket bats are stronger, offer a better ‘sweet spot’ and deliver more energy to the ball than those made from traditional willow, tests conducted by the University of Cambridge show. Bamboo could, the study argues, help cricket to expand faster in poorer parts of the world and make the sport more environmentally friendly.
🗞 PHYSICS NEWS⚙♨:
ACTIVE CAVITY SOLITONS: ULTRA-STABLE, HIGH-POWER OPTICAL PULSES FOR MEASURING LIGHT WAVES
Unlike the oscillations of sound waves, the oscillations of light are so fast that extremely complex equipment is needed to observe them directly. However, it is possible to measure the frequencies of these oscillations indirectly with frequency combs. These combs are made up of a set of regularly spaced ‘teeth’ where each tooth corresponds to a frequency. Used as a graduated ruler, they offer the possibility of measuring an optical frequency with great precision. This makes it possible, among other things, to measure variations in the distance between the Earth and the Moon with an accuracy equivalent to the size of a hair.
‘FLIPPING’ OPTICAL WAVEFRONT ELIMINATES DISTORTIONS IN MULTIMODE FIBERS
The use of multimode optical fibers to boost the information capacity of the Internet is severely hampered by distortions that occur during the transmission of images because of a phenomenon called modal crosstalk.
A SCANNING QUANTUM SENSING MICROSCOPE WITH NANOSCALE ELECTRIC-FIELD IMAGING
Recently, Professor Jiang Ying from International Center for Quantum Materials and Research Center for Light-Element Advanced Materials of Peking University, in collaboration with Professor Jörg Wrachtrup from Stuttgart University and Professor Yang Sen from the Chinese University of Hong Kong, has developed a scanning quantum sensing microscope by using a solid-state quantum bit (qubit), nitrogen-vacancy (NV) center, as the quantum sensor. They have, for the first time, realized NV-based nanoscale electric-field imaging and its charge-state control, demonstrating the possibility of scanning NV electrometry. This work, titled “Nanoscale electric-field imaging based on a quantum sensor and its charge-state control under ambient condition,” has been published in Nature Communications.
🗞 EARTH NEWS🌏:
HOW PLANETS FORM CONTROLS ELEMENTS ESSENTIAL FOR LIFE
The prospects for life on a given planet depend not only on where it forms but also how, according to Rice University scientists.
OCEAN-BOTTOM SEDIMENTS TELL A STORY ABOUT ANCIENT GREENLAND SUMMERS
Over hundreds of thousands of years, sediments from southern Greenland have been making their way into the ocean, where they’re carried by underwater currents to a location in the Labrador Sea called the Eirik Drift.
ANIMAL PRODUCTION RESPONSIBLE FOR VAST MAJORITY OF AIR QUALITY-RELATED HEALTH IMPACTS FROM US FOOD
Poor air quality caused by food production in the United States is estimated to result in 16,000 deaths annually, 80 percent of which are related to animal production, according to a new study led by researchers at the University of Minnesota. The research also found there are measures farmers and consumers alike can take to reduce the air quality-related health impacts of the food we eat.
🗞 ASTRONOMY & SPACE NEWS🌪🎇:
IN THE EMPTINESS OF SPACE, VOYAGER 1 DETECTS PLASMA ‘HUM’
Voyager 1—one of two sibling NASA spacecraft launched 44 years ago and now the most distant human-made object in space—still works and zooms toward infinity.
NEW SUB-NEPTUNE EXOPLANET DISCOVERED BY ASTRONOMERS
A team of astronomers from the Grenoble Alpes University in France and elsewhere, reports the detection of a new sub-Neptune exoplanet orbiting an M dwarf star. The newly found alien world, designated TOI-269 b, is nearly three times larger than the Earth. The finding was detailed in a paper published April 30 on the arXiv pre-print repository.
FIRST DISCOVERY OF METHANOL IN A WARM PLANET-FORMING DISK
An international team of researchers led by Alice Booth (Leiden University, the Netherlands) have discovered methanol-ijs in the warm part of a planet-forming disk. The methanol cannot have been produced there and must have originated in the cold gas clouds from which the star and the disk formed. Thus, the methanol is inherited. If that is common, it could give the development of life a flying start. The researchers will publish their findings on Monday evening in Nature Astronomy.
🗞 NANOTECHNOLOGY NEWS⛄☃:
PHYSICISTS OBSERVE MODIFIED ENERGY LANDSCAPES AT THE INTERSECTION OF 2D MATERIALS
In 1884, Edwin Abbott wrote the novel Flatland: A Romance in Many Dimensions as a satire of Victorian hierarchy. He imagined a world that existed only in two dimensions, where the beings are 2D geometric figures. The physics of such a world is somewhat akin to that of modern 2D materials, such as graphene and transition metal dichalcogenides, which include tungsten disulfide (WS2), tungsten diselenide (WSe2), molybdenum disulfide (MoS2) and molybdenum diselenide (MoSe2).
USING DNA FOR TINY TECH: GENERATING DNA ORIGAMI NANOSTRUCTURES THROUGH SHAPE ANNEALING
When it comes to creating nanotechnology, one cannot simply build it with their hands. Instead, researchers need something nano-sized that is able to self-assemble. DNA origami is a method of creating nano-sized shapes by folding strands of DNA. This can be used to manufacture nanomachines, sensors, and nanorobots for use in fields ranging from biophysics to physical computing.
A NEW WAY TO LOOK AT THE INNER WORKINGS OF TINY MAGNETS
Researchers from NTNU are shedding light on magnetic materials at small scales by creating movies with the help of some extremely bright X-rays.
Source:Technology News Channels
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