搜索结果: 1-15 共查到“国际动态 mass”相关记录29条 . 查询时间(0.359 秒)
Mass deployment of Holtec SMRs in Ukraine is part of accord's aims（图）
乌克兰 Holtec SMR 小型模块化反应堆
2023/4/25
Up to 20 Holtec SMR-160 plants will be built in Ukraine under a cooperation agreement signed between Holtec International and Ukrainian national nuclear operator Energoatom. The agreement calls for th...
New findings reveal the most detailed mass map of dark matter（图）
Astronomy Physics Research
2023/6/29
For millennia, humans have been fascinated by the mysteries of the cosmos. From ancient civilizations such as the Babylonians, Greeks, and Egyptians to modern-day astronomers, the allure of the starry...
Unlike electrons, quarks cannot wander freely in ordinary matter. They are confined by the strong force within hadrons such as the protons and neutrons that make up atomic nuclei. However, at very hig...
The LHCb collaboration has measured a difference in mass between two particles of 0.00000000000000000000000000000000000001 grams – or, in scientific notation, 10-38 g. The result, reported in a paper ...
Sentinels of ocean acidification survived Earth's last mass extinction（图）
Sentinels ocean acidification survived Earth last mass extinction
2020/10/10
Two groups of tiny, delicate marine organisms -- sea butterflies and sea angels -- were surprisingly resilient in the face of dramatic global climate change and Earth's most recent mass extinction eve...
Mass extinction of land and sea biodiversity 250 million years ago not simultaneous（图）
Mass extinction land sea biodiversity 250 million years ago simultaneous
2019/12/13
Some 250 million years ago, simultaneous mass extinctions of marine and terrestrial life occurred in an event known as the End-Permian. Or so scientists believed.New research led by Colby College geol...
3Q: Scientists shave estimate of neutrino’s mass in halfJoseph Formaggio explains the discovery that the ghostly particle must be no more than 1 electronvolt, half as massive as previously thought.
Laboratory for Nuclear Science Neutrinos 3 Questions School of Science Research
2019/9/20
An international team of scientists, including researchers at MIT, has come closer to pinning down the mass of the elusive neutrino. These ghost-like particles permeate the universe and yet are though...
Mass Extinctions Remove Species But Not Ecological Variety（图）
Mass Extinctions Remove Species Ecological Variety
2018/1/31
Sixty-five million years ago, clouds of ash choked the skies over Earth. Dinosaurs, along with about half of all the species on Earth, staggered and died.
But in the seas, a colorful population of ma...
In the past 540 million years, the Earth has endured five mass extinction events, each involving processes that upended the normal cycling of carbon through the atmosphere and oceans. These globally f...
‘Negative mass’ created at Washington State University
Negative mass Washington State University
2017/4/27
Washington State University physicists have created a fluid with negative mass, which is exactly what it sounds like. Push it, and unlike every physical object in the world we know, it doesn’t acceler...
Triboelectric Nanogenerators Boost Mass Spectrometry Performance
Triboelectric Nanogenerators Boost Mass Spectrometry Performance
2017/3/14
Triboelectric nanogenerators (TENG) convert mechanical energy harvested from the environment to electricity for powering small devices such as sensors or for recharging consumer electronics. Now, rese...
Virginia Tech researchers explore gigantic volcanic eruptions that caused worldwide mass extinctions
Virginia Tech researchers volcanic eruptions caused worldwide mass extinctions
2016/11/29
A paper published in Nature Communications by Virginia Tech researchers confirms a major feature in the formation of large igneous provinces — massive worldwide volcanic eruptions that created in...
Nanoparticles – tiny particles 100,000 times smaller than the width of a strand of hair – can be found in everything from drug delivery formulations to pollution controls on cars to HD TV sets. With s...
In Galaxy Clustering,Mass May Not Be the Only Thing That Matters
Galaxy Clustering Mass Only Thing That Matters
2016/2/22
An international team of researchers, including Carnegie Mellon University’s Rachel Mandelbaum, has shown that the relationship between galaxy clusters and their surrounding dark matter halo is more c...
Study explores ancient ecosystem response to a “big five” mass extinction, calls for modern food web research
ancient ecosystem big five mass extinction modern food web research
2015/10/13
As the planet faces the dawn of a sixth mass extinction, scientists are searching for clues about the uncertain road ahead by exploring how ancient ecosystems collapsed and bounced back from traumatic...