搜索结果: 1-15 共查到“理学 Powerful”相关记录23条 . 查询时间(0.109 秒)
Drilling into the seabed beneath Earth’s most powerful ocean current（图）
climate change seabed beneath Earth powerful ocean current
2019/10/30
The Antarctic Circumpolar Current is the planet's most powerful and arguably most important current. It is the only current to flow clear around the globe without being diverted by any landmass.It con...
A giant,prehistoric otter's surprisingly powerful bite（图）
prehistoric otter powerful bite
2017/11/24
A massive, wolf-sized otter that lived about 6 million years ago may have been a dominant predator in its time, according to a new study analyzing the animal’s jaws.The research provides insight into ...
Using Powerful New Telescope,Astronomers Confirm Observing One of the Oldest Objects in the Universe（图）
Powerful New Telescope Astronomers Observing One of the Oldest Objects the Universe
2017/11/23
Astronomers using the Large Millimeter Telescope (LMT), which is operated jointly by the University of Massachusetts Amherst and Mexico’s Instituto Nacional de Astrofísica, óptica y Electrónica, repor...
IU biologists reveal how powerful 'master gene' regulates physical differences between sexes
IU biologists master gene physical differences sexes
2017/3/14
Physical differences between males and females in species are common, but there remains much to learn about the genetic mechanisms behind these differences.
New research by scientists...
Tiniest chameleons deliver most powerful tongue-lashings
Tiniest chameleons most powerful tongue-lashings
2016/1/8
Chameleons are known for sticking their tongues out at the world fast and far, but until a new study by Brown University biologist Christopher Anderson, the true extent of this awesome capability had ...
When certain massive stars use up all of their fuel and collapse onto their cores, explosions 10 to 100 times brighter than the average supernova occur. Exactly how this happens is not well understood...
How Mantis Shrimp Evolved Many Shapes with Same Powerful Punch（图）
Mantis Shrimp Evolved Many Shapes Same Powerful Punch
2015/3/4
The miniweight boxing title of the animal world belongs to the mantis shrimp, a cigar-sized crustacean whose front claws can deliver an explosive 60-mile-per-hour blow akin to a bullet leaving the bar...
Powerful High-Velocity Dispersion Molecular Hydrogen Associated with an Intergalactic Shock Wave in Stephan's Quintet
interactions intergalactic medium
2014/12/23
We present the discovery of strong mid-infrared emission lines of molecular hydrogen of apparently high-velocity dispersion (~870 km s-1) originating from a group-wide shock wave in Stephan's Quintet....
Powerful H$_2$ Line-cooling in Stephan's Quintet : I - Mapping the Significant Cooling Pathways in Group-wide Shocks,
intergalactic medium shock waves
2014/12/22
We present results from the mid-infrared spectral mapping of Stephan's Quintet using the Spitzer Space Telescope. A 1000 km/s collision has produced a group-wide shock and for the first time the large...
A Hotspot for Powerful Cosmic Rays PHYSICISTS A STEP CLOSER TO FINDING MYSTERIOUS SOURCES
The universe Ray Hot spots. Mysterious The big dipper. High-energy cosmic rays The sun
2014/7/18
July 8, 2014 – An observatory run by the University of Utah found a “hotspot” beneath the Big Dipper emitting a disproportionate number of the highest-energy cosmic rays. The discovery moves physics a...
Detection of gravity changes before powerful earthquakes in GRACE satellite observations
Earthquake Precursor Gravity Grace Ionosphere
2015/8/18
The variations of gravity field have been analyzed in this article, in order to find disturbances in the vicinity of recent great earthquakes epicenters including Chile (February 27, 2010), Tohoku-Oki...
RNA as it folds as visualized by nuclear magnetic resonance (NMR) spectroscopy. Using NMR, researchers can follow structural changes in RNA over real time, important when designing drugs that will bin...
Powerful relativistic jets in spiral galaxies
galaxies: jets – BL Lacertae objects: general – quasars: general – galaxies: Seyfert – binaries: general
2011/10/9
The discovery of high-energy (E>100 MeV) gamma rays from Narrow-Line Seyfert 1 Galaxies (gamma-NLS1s) has confirmed the presence of powerful relativistic jets in this class of active galactic nuclei (...
Disk, merger, or outflow ? Molecular gas kinematics in two powerful obscured QSOs at z>3.4
Galaxies: high-redshift – Submillimeter: ISM – Submillimeter: galaxies – (Galaxies:) quasars: individual
2011/10/8
We report on the detection of bright CO(4-3) line emission in two powerful, obscured quasars discovered in the SWIRE survey, SW022513 and SW022550 at z>3.4. We analyze the line strength and profile to...
Some Inequalities for Nilpotent Multipliers of Powerful $p$-Groups
Nilpotent multiplier Powerful p-group
2011/2/21
In this paper we present some inequalities for the order, the exponent,and the number of generators of the c-nilpotent multiplier (the Baer invariant with respect to the variety of nilpotent groups of...