搜索结果: 1-15 共查到“理学 Spots”相关记录19条 . 查询时间(0.047 秒)
'Cold spots,' not hotspots, key to rapid biodiversification（图）
Cold spots hotspots key rapid biodiversification
2020/12/18
The Amazon rainforest may be a hotspot for animal and plant diversity, but Louisiana State University scientists report that new species form there less often than previously thought. Places such as d...
ALMA spots most distant dusty galaxy hidden in plain sight（图）
ALMA spots distant dusty galaxy hidden plain sight
2019/12/13
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have spotted the light of a massive galaxy seen only 970 million years after the Big Bang. Called MAMBO-9, it's the most dista...
Penn Collaboration Produces Surprising Insights Into the White Spots on Butterfly Wings
Penn Collaboration Insights White Spots Butterfly Wings
2017/7/24
A collaboration between biologists and materials scientists at the University of Pennsylvania is yielding new insights into the wings of the “skipper butterfly” in the Costa Rican rainforest. What the...
JILA Team Spots Elusive Intermediate Compound in Atmospheric Chemistry
JILA Team Spots Elusive Intermediate Compound Atmospheric Chemistry
2016/11/4
JILA physicists and colleagues have identified a long-missing piece in the puzzle of exactly how fossil fuel combustion contributes to air pollution and a warming climate. Performing chemistry experim...
Chicken coops,sewage treatment plants are hot spots of antibiotic resistance
Chicken coops sewage treatment plants antibiotic resistance
2016/5/19
Antibiotic-resistant bacteria most often are associated with hospitals and other health-care settings, but a new study indicates that chicken coops and sewage treatment plants also are hot spots of an...
When the isthmus is an island: Madison's hottest, and coldest, spots（图）
hottest coldest spots
2014/12/1
As Dane County begins the long slide into winter and the days become frostier this fall, three spots stake their claim as the chilliest in the area.
One is a cornfield in a broad valley and two are w...
Rossby waves and polar spots in rapidly rotating stars: Implications for stellar wind evolution
magnetic fi eld – Stars: activity – Stars: starspots – Stars: oscillations – Physical data and processes: Magnetohydrodynamics
2011/10/10
Rapidly rotating stars show short-period oscillations in magnetic activity and polar appearance of starspots. The aim of this paper is to study large-scale shallow water waves in the tachoclines of ra...
Using Star Spots to Measure the Spin-orbit Alignment of Transiting Planets
Using Star Spots Measure Alignment Transiting Planets
2011/10/8
Spectroscopic follow-up of dozens of transiting planets has revealed the degree of alignment between the equators of stars and the orbits of the planets they host. Here we determine a method, applicab...
Jets, Mach cone, hot spots, ridges, harmonic flow, dihadron and $\gamma$-hadron correlation in high-energy heavy-ion collisions
Jets Mach cone hot spots ridges harmonic flow dihadron correlation high-energy heavy-ion collisions
2010/12/29
Within the AMPT Monte Carlo model, hot spots in the initial transverse parton density are shown to lead to harmonic flows which all contribute to dihadron azimuthal correlation. The net back-to-back d...
The statistics of the curvature quanta generated during a stage of inflationary expansion is used to derive a count response model for the large-scale phonons determining, in the concordance lore, the...
Jets, Mach cone, hot spots, ridges, harmonic flow, dihadron and $\gamma$-hadron correlation in high-energy heavy-ion collisions
Jets Mach cone hot spots ridges harmonic flow dihadron $\gamma$-hadron correlation high-energy heavy-ion collisions
2011/1/7
Within the AMPT Monte Carlo model, hot spots in the initial transverse parton density are
shown to lead to harmonic flows which all contribute to dihadron azimuthal correlation.
Observational evidence for the shrinking of bright maser spots
Observational evidence bright maser spots
2011/1/10
The nature of maser emission means that the apparent angular size of an individual maser spot is determined by the amplification process as well as by the instrinsic size of the emitting cloud. Highly...
Chemical spots and their dynamical evolution on HgMn stars
Solar and Stellar Astrophysics (astro-ph.SR)
2011/1/6
Our recent studies of late B-type stars with HgMn peculiarity revealed for the first time the presence of fast dynamical evolution of chemical spots on their surfaces. These observations suggest a hit...
Turbulence and magnetic spots at the surface of hot massive stars
Solar and Stellar Astrophysics (astro-ph.SR) Fluid Dynamics (physics.flu-dyn)
2010/12/29
Hot luminous stars show a variety of phenomena in their photospheres and in their winds which still lack clear physical explanations at this time. Among these phenomena are non-thermal line broadening...
The upper main sequence magnetic chemically peculiar (Ap) stars exhibit a non-uniform distribution of chemical elements across their surfaces and with height in their atmospheres. These inhomogeneitie...