搜索结果: 1-15 共查到“mass”相关记录17条 . 查询时间(0.125 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Tracing the Evolution of SMBHs and Stellar Objects in Galaxy Mergers: A Multi-mass Direct N-body Model
星系合并 SMBH 恒星物体演化 多质量 直接N体模型
2023/11/13
By using direct N-body numerical simulations, we model the dynamical coevolution of two supermassive black holes (SMBHs) and the surrounding stars in merging galaxies. In order to investigate how diff...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Fill-ins and Positive Mass theorem
填充 正质量定理 AH流形
2023/5/15
In this talk, we shall use fill-in to give a new description of the positive mass theorem. By using this, we shall show that PMT on AH manifolds implies PMT on AF manifolds. This talk is based on the ...
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...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：On the residual Monge-Ampère mass of plurisubharmonic functions with symmetry
对称性 多次调和函数 残余 蒙日-安培质量
2023/4/13
In this talk, we will study the residual Monge-Ampère mass of a plurisubharmonic function with isolated singularity at the origin in C2. We proved that the residual mass is zero if its Lelong number i...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Rigidity of non-compact static domains in hyperbolic space via positive mass theorems
正质量定理 双曲空间 非紧致 静域刚性
2023/4/14
We single out a notion of staticity which applies to any domain in hyperbolic space whose boundary is a non-compact totally umbilical hypersurface. For (time-symmetric) initial data sets modeled at in...
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...
In a milestone that will bear on future discoveries in nuclear and particle physics, today an international team including scientists from MIT announced that they have established a new upper limit on...
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 ...
Eighteen Advanced Students Named 2007 American Association for the Advancement of Science Mass Media Fellows
Mass Media
2007/5/17
16 May 2007，A group of advanced science, mathematics, and engineering students is invading U.S. newsrooms this summer with one overriding objective: Break some science news.
Mass Weddings: national institute of standands and technology’s New Efficient 2-Photon Source
photons physics
2007/4/17
April 12, 2007，For a variety of applications in physics and technology, ranging from quantum information theory to telecommunications, it’s handy to have access to pairs of photons created simultaneou...
Sensor monitoring system could aid mass transit, homeland security(图)
Sensor monitoring system public transportation crime prevention
2007/4/6
April 5, 2007,INDIANAPOLIS -- Human behavior can be observed and accurately analyzed by a complex sensor network, a system that could ultimately benefit public transportation, homeland security and cr...
2 February 2007，Existing microelectromechanical devices can determine the mass of tiny objects weighing 10-18 grams (attograms). However, all such devices require extremely controlled conditions in wh...
Blame Our Evolutionary Risk of Cancer on Our Body Mass
Cancer Body Mass cellular lifespan
2006/12/19
December 6, 2006，A key enzyme that cuts short our cellular lifespan in an effort to thwart cancer has now been linked to body mass.
6 December 2006，Four environmental scientists will head to the Los Angeles area next summer for a crash course in journalism, thanks to a new one-year grant to the AAAS Mass Media Science and Engineer...