搜索结果: 1-15 共查到“物理学 Temporal”相关记录26条 . 查询时间(0.028 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：RL-based Trajectory Planning for Efficient Exploration of Spatio-Temporal Fields
RL 高效时空场 探测轨迹 规划
2023/5/17
This talk concerns trajectory planning problems of an autonomous vehicle for field exploration, where the vehicle needs to accumulate sufficient information on a spatio-temporal field and to reach a d...
SPATIAL AND TEMPORAL CHANGES OF AEROSOL OPTICAL DEPTH AND ITS DRIVING FACTORS BASED ON MODIS IN JIANGSU PROVINCE
AOD MODIS Temporal Change Spatial Autocorrelation Gravity Model Driving Factor
2018/5/14
Aerosol Optical Depth (AOD) is of great value for studying air mass and its changes. In this paper, we studied the spatial-temporal changes of AOD and its driving factors based on spatial autocorrelat...
MEASURING THE GROWTH OF INDIVIDUAL TREES USING MULTI-TEMPORAL AIRBORNE LASER SCANNING POINT CLOUDS
Height growth laser scanning multi-temporal change detection
2015/8/13
It is well known that characteristics of individual trees, such as tree height, biomass and crown area, can be derived from airborne
laser scanning (ALS) and that heights for individual trees can be ...
Spatial and temporal gradients in the cosmological constant
Basic physical parameters the universe physical parameters space
2014/12/20
It is possible that there may be differences in the fundamental physical parameters from one side of the observed universe to the other. I show that the cosmological constant is likely to be the most ...
Disclosing the spatio-temporal structure of PDC entanglement through frequency up-conversion
spatio-temporal structure of PDC entanglement frequency up-conversion Optics
2012/5/29
In this work we propose and analyse a scheme where the full spatio-temporal correlation of twin photons/beams generated by parametric down-conversion is detected by using its inverse process, i.e. sum...
A spatio-temporal Gaussian-Conical wavelet with high aperture selectivity for motion and speed analysis
Extraction of motion parameters speed tuning continuous wavelet transform directional and conical wavelets
2012/5/25
The construction of a spatio-temporal wavelet and its tuning to speed was first realized in the 90s on the Morlet wavelet by M. Duval-Destin \cite{Duval-Destin91a,Duval-Destin92}. This enabled to demo...
Demonstration of temporal cloaking
Demonstration temporal cloaking manipulate control electromagnetic fields
2011/8/4
Abstract: Recent research has uncovered a remarkable ability to manipulate and control electromagnetic fields to produce effects such as perfect imaging and spatial cloaking. To achieve spatial cloaki...
Spectral and temporal characterization of a fused-quartz microresonator optical frequency comb
Spectral and temporal characterization fused-quartz microresonator optical frequency comb
2011/9/1
We report on the fabrication of high-Q, fused-quartz microresonators and the parametric genera-tion of a frequency comb with 36 GHz line spacing using them. We have characterized the intrinsic stabili...
The influence of temporal coherence on the dynamical Casimir effect
Casimir effect Quantum Physics temporal coherence
2010/11/8
We study the dynamical Casimir effect in the presence of a finite coherence time, which is associated with a finite quality factor of the optical cavity. We use the time refraction model, where a fixe...
Temporal behavior of the inverse spin Hall voltage in a magnetic insulator-nonmagnetic metal structure
Temporal behavior inverse spin Hall voltage magnetic insulator-nonmagnetic metal structure
2010/11/18
The time dependence of an inverse spin Hall (iSHE) voltage in a magnetic insulator (yttrium
iron garnet, YIG)-nonmagnetic metal (platinum, Pt) structure is studied. A flow of spin-polarized electrons...
Temporal Evolution of Financial Market Correlations
Financial Market Correlations Statistical
2010/11/17
We investigate financial market correlations using random matrix theory and principal component analysis. We use random matrix theory to demonstrate that correlation matrices of asset price changes c...
Entropy Production in Gluodynamics in temporal axial gauge in 2+1 dimensions
Entropy Production Gluodynamics temporal axial gauge 2+1 dimensions
2011/1/7
Entropy production in non-Abelian gauge theory is discussed in the limit of vanishing classical fields. Based on the Kadanoff-Baym equation with the leading order self-energy in
the temporal axial ga...
Temporal coherence length of light in semiclassical field theory models
Temporal coherence length light semiclassical field theory models
2010/10/29
The following work is motivated by the conceptual problems associated with the wave-particle duality and the notion of the photon. Two simple classical models for radiation from individual emitters ar...
Temporal Leggett-Garg-Bell inequalities for sequential multi-time actions in quantum information processing, and a re-definition of Macroscopic Realism
Temporal Leggett-Garg-Bell inequalities sequential multi-time actions quantum information processing a re-definition Macroscopic Realism
2010/10/19
The usual formulation of Macrorealism is recast to make this notion fully concurrent with the basic ideas behind classical physics. The assumption of non-invasiveness of measurements is dropped. Inste...
Experimental and numerical study of spatial and temporal evolution of nonlinear wave groups
Experimental and numerical study spatial and temporal evolution nonlinear wave groups
2009/11/2
The evolution along the tank of unidirectional nonlinear wave groups with narrow spectrum is studied both experimentally and numerically. Measurements of the instantaneous surface elevation within the...