搜索结果: 1-15 共查到“理学 result”相关记录58条 . 查询时间(0.062 秒)
Geneva, 23 March 2023. The W boson, a fundamental particle that carries the charged weak force, is the subject of a new precision measurement of its mass by the ATLAS experiment at CERN.
2022年9月5日四川泸定M6.8级地震震源破裂过程反演初步结果 Preliminary result for Rupture Process of Sep.5,2022,M6.8 Earthquake,Luding,China（图）
四川泸定 地震震源破裂过程 反演初步结果
2023/1/16
北京时间2022年9月5日12点52分 (UTC 2022-9-5 04:52:20) 在我国四川省泸定县发生了M6.8级地震。地震发生后，我们从IRIS数据中心下载了地震数据资料用于研究地震震源机制和震源破裂过程。选取其中信噪比较高并且沿方位角分布比较均匀的19个远场P波波形（震中距位于30°<△<90°范围之内）和21个SH波波形资料进行点源模型的震源机制解反演；根据反演结果构建有限断层模型进...
Today the LHCb experiment at CERN announced new results which, if confirmed, would suggest hints of a violation of the Standard Model of particle physics. The results focus on the potential violation ...
The best-known particle in the lepton family is the electron, a key building block of matter and central to our understanding of electricity. But the electron is not an only child. It has two heavier ...
THE DETERMINATION METHOD OF EXTREME EARTHQUAKE DISASTER AREA BASED ON THE DUST DETECTION RESULT FROM GF-4 DATA
Earthquake Extreme Disaster Area Dust GF-4 Remote Sensing
2018/5/11
The remote sensing has played an important role in many earthquake emergencies by rapidly providing the building damage, road damage, landslide and other disaster information. The earthquake in the mo...
Moderate folic acid supplementation and MTHFD1-synthetase deficiency in mice, a model for the R653Q variant, result in embryonic defects and abnormal placental development
birth defects developmental defects embryo folic acid high folate methylenetetrahydrofolate reductase MTHFD1 placenta
2018/12/19
Background: Moderately high folic acid intake in pregnant women has led to concerns about deleterious effects on the mother and fetus. Common polymorphisms in folate genes, such as methylenetetrahydro...
A distant quasar may have its light split into multiple images by a foreground galaxy cluster that acts as a gravitational lens. The light travels along different paths of differing lengths to form ea...
Sedimentologic and volcanologic investigation of the deep tyrrhenian sea: preliminary result of cruise VST02
submarine volcanism submarine volcanic explosions deep-sea fan
2015/9/7
The VST02 cruise carried out in the summer of 2002 was focused at sedimentologic and
volcanologic researches over selected areas of the deep portion of the Tyrrhenian sea. Chirp lines
and seafloor s...
A regularity result for the singular values of a transfer matrix and a quadratically convergent algorithm for computing its L_infinity-norm
Matrix and singular value differentiable function frequency singular value lipschitz second derivative
2015/8/12
The ith singular value of a transfer matrix need not be a differentiable function of frequency where its multiplicity is greater than one. We show that near a local maximum, however, the largest singu...
A local mountain pass type result for a system of nonlinear Schrodinger equations
local mountain pass type nonlinear Schrodinger equations
2015/4/3
A local mountain pass type result for a system of nonlinear Schrodinger equations.
Weight, Motion and Force: Conceptual Structural Changes in Ancient Knowledge as a Result of its Transmission
Weight Motion Force Conceptual Structural Changes Ancient Knowledge
2015/3/26
Weight, Motion and Force: Conceptual Structural Changes in Ancient Knowledge as a Result of its Transmission.
Fragile bones of modern humans result from reduced physical activity
modern humans reduced physical activity
2014/12/30
UNIVERSITY PARK, Pa. -- The comparatively light bone structure of modern humans compared to early human species and other modern primates may be due to the modern abandonment of the constant physical ...
Molecular and functional analysis of mutations that result in insecticide resistance in Colorado potato beetle
Gene mutations pain and the potato beetle biological molecules the rate constant
2014/12/11
The functional aspects of specific mutations, R30K, S291G, and I392T, found associated with AChE gene of OP- and carbamate-resistant Colorado potato beetle (CPB) were determined using recombinant AChE...
Antarctic ice sheet is result of CO2 decrease, not continental breakup
Antarctic ice sheet result of CO2 decrease not continental breakup
2014/8/14
Climate modelers from the University of New Hampshire have shown that the most likely explanation for the initiation of Antarctic glaciation during a major climate shift 34 million years ago was decre...
A RESULT ON RICCI CURVATURE AND THE SECOND BETTI NUMBER
A RESULT RICCI CURVATURE THE SECOND BETTI NUMBER
2018/4/19
We prove that the second Betti number of a compact Riemannian manifoldvanishes under certain Ricci curved restriction.