搜索结果: 1-15 共查到“理学 background”相关记录117条 . 查询时间(0.234 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Defocusing NLS equation with nonzero background: Painleve asymptotics in transition region
非零背景 散焦NLS方程 过渡区 疼痛渐近
2023/5/5
Consider to the Cauchy problem of the defocusing NLS equation with a nonzero background. With the Dbar steepest descent method and double scaling limit, we obtain Painleve asymptotics in two transitio...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Defocusing NLS equation with nonzero background: Soliton resolution in soliton region
非零背景 散焦NLS方程 孤子区域 孤子分辨率
2023/5/5
Consider to the Cauchy problem of the defocusing NLS equation with a nonzero background. With the Dbar generalization of the nonlinear steepest descent method to compute the leading order approximatio...
Variability in the cardiometabolic effects of ω-3 long-chain PUFAs: background diet, timing, and genetics
Variability cardiometabolic ω-3 long-chain genetics
2018/11/13
Omega-3 long-chain PUFAs (LC-PUFAs) have received considerable attention over many years for their proposed health benefits, particularly in relation to cardiovascular disease. More recently, there ha...
The CERESIS earthquake catalogue and database of the Andean Region: background, characteristics and examples of use
historical seismicity CERESIS database South America intensity data points earthquakesource parameters
2015/9/14
The history of earthquakes in South America starts with the coming of the Spanish and Portuguese 玞onquistadores?at the beginning of the 16th century. Their chronicles, and those of local historians, a...
Background electromagnetic noisein the vicinity 1 Hz as a possible indicatorof earthquake-related anomalies
electromagnetic emission temperature Earth surface impedance earthquake precursor 1 Hz frequency range
2015/9/14
Measurements of space-time distributions of the background emissions in the frequency range 0.5-5 Hz and their seasonal and diurnal variations are presented. The analysis of impedance ratio determines...
Fabry–Perot interferometer as a solar background noise suppressor:application to daytime lidar
Lidar Atmosphere Daytime
2015/8/24
Continuous atmospheric probing by a lidar is a requirement for many applications. However, due to high solar background noise during the daytime, lidar operations are mostly restricted to night-time. ...
Adaptive Multiscale Detection of Filamentary Structures Embedded in a Background of Uniform Random Points
Multiscale Geometric Analysis Pattern Recognition
2015/8/21
We are given a set of n points that appears uniformly distributed in the unit square [0,1]2.
We wish to test whether the set actually is generated from a non-uniform distribution having
a small frac...
Background electromagnetic noise characterization: the role of external and internal Earth sources
Radio noise characterization Ionosphere-magnetosphere Background EM noise Crustal/lithospheric EM sources
2015/8/14
The Earth is surrounded by the ionosphere and magnetosphere that can roughly be seen schematically as two concentric shells. These two composed and inhomogeneous structured shells around the Earth sel...
Orographic role in anomalous VHF propagation on the background of impending earthquakes (EQ)
Orography EQ and VHF anomalous propagation Earthquake RRI Terrain features
2015/8/14
The role of orographic factors in modifying atmospheric dynamics on the background of an impending earthquake (EQ) that might lead to propagation of a signal beyond the Line Of Sight (LOS) is examined...
Hydrodynamic simulation of the cosmological X-ray background
observations large scale structure of Universe
2014/12/26
We use a hydrodynamic simulation of an inflationary cold dark matter model with a cosmological constant to predict properties of the extragalactic X-ray background (XRB). We focus on emission from the...
The AGN fraction of submm-selected galaxies and contributions to the submm/mm-wave extragalactic background light
galaxies contributions
2014/12/22
We present a comparison of the SCUBA half degree extragalactic survey (SHADES) at 450 μm, 850 μm and 1100 μm with deep guaranteed time 15 μm AKARI FU-HYU survey data and Spitzer guaranteed time data a...
A Neural Network based Background Supression Technique applied to VHE Gamma Ray Data coming from the Crab Pulsar
Imaging Atmospheric Cherenkov Technique Flux Upper Limit
2014/12/12
In this thesis we present new results for the 99.9% confidence level flux upper limits on the pulsed VHE gamma ray signal coming from the Crab pulsar. In order to achieve optimum hadronic background s...
Impact of a time-dependent background error covariance matrix on air quality analysis
Surface of assimilation system analysis of ozone the covariance matrix data assimilation system physical state
2014/12/10
In this article we study the influence of different characteristics of our assimilation system on surface ozone analyses over Europe. Emphasis is placed on the evaluation of the background error covar...
Construction of non-diagonal background error covariance matrices for global chemical data assimilation
Chemical data assimilation To optimize the noise Model predictions Chemical state
2014/12/9
Chemical data assimilation attempts to optimally use noisy observations along with imperfect model predictions to produce a better estimate of the chemical state of the atmosphere. It is widely accept...
Marked Increases in Background Photon Emissions in Sudbury Ontario More than One Week before the Magnitude > 8.0 Earthquakes in Japan and Chile
Photon Emissions Seismic Events Earthquake Antecedents
2013/3/8
Daily, minute-to-minute measurements of ground level photon emissions in Sudbury, Ontario Canada displayed conspicuous increases more than one week before the 2011 M9.0 earthquake in Japan and the 201...