搜索结果: 16-30 共查到“物理学 SPECTRAL”相关记录116条 . 查询时间(0.17 秒)
Sensitivity Analysis of Spectral Indices to Ozone Absorption Using Physical Simulations in a Forest Environment: Comparative Study between MODIS, SPOT VéGéTATION & AVHRR
Spectral Indices Ozone Absorption Using Physical Simulations
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2015/7/29
Considering a forest cover (Balsam Fir with various densities) we analyze the sensitivity of several vegetation indices to
ozone absorption using physical simulations in the spectral bands of MODIS,...
QUANTIFYING THE ECOLOGICAL PATTERNS OF URBAN DENSIFICATION THROUGH MULTIPLE ENDMEMBER SPECTRAL MIXTURE ANALYSIS, LANDSCAPE METRICS, AND FUZZY LOGIC
Sustainability Urban Change MESMA Fuzzy Logic Landscape Metrics Los Angeles
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2015/7/29
This paper introduces an integrative methodology that has been developed to measure temporal changes in urban morphology based
on the techniques of multiple endmember spectral mixture analysis (MESM...
HYPERSPECTRAL IMAGE ANALYSIS FOR MATERIAL MAPPING USING SPECTRAL MATCHING
Hyper Spectral Imaging Image Analysis Material Mapping Urban Scene Description Data Fusion
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2015/7/29
Recently, hyperspectral image analysis has obtained successful results in information extraction for earth remote sensing system. The
data produced with this type of analysis is an important compone...
COMPARISON OF BAND RATIOING AND SPECTRAL INDICES METHODS FOR DETECTING ALUNITE AND KAOLINITE MINERALS USING ASTER DATA IN BIGA REGION, TURKEY
Remote Sensing Geology Comparison Detection
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2015/7/29
Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) covers a wide spectral region with 14 bands
from visible to the thermal infrared. The different band ranges can be capable of d...
Development of 2D Spectral Difference Solver for Viscous Compressible Flow Problems on Unstructured Quadrilateral Meshes
Viscous Compressible Flow 2D Spectral
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2015/6/23
The work focuses on the development of a two-dimensional Spectral Dierence (SD) solver
for viscous compressible ow problems on unstructured quadrilateral meshes. We present
the validations of this...
Development of a 3D Viscous Compressible Flow Solver using Spectral Difference Method on Unstructured Hexahedral Grids
Spectral Difference Method Unstructured Hexahedral Grids
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2015/6/23
This report presents a three-dimensional high-order Spectral Dierence solver suitable
for Large Eddy Simulation. The solver is based on the formulation of Sun et al. (2007)
implemented on unstructu...
VISIR-SAT – A PROSPECTIVE MICRO-SATELLITE BASED MULTI-SPECTRAL THERMAL MISSION FOR LAND APPLICATIONS
Thermal infrared remote sensing, fire detection and characterization
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2015/5/7
Current space-borne thermal infrared satellite systems aimed at land surface remote sensing retain some significant deficiencies, in particular in terms of spatial resolution, spectral coverage, num...
ESTIMATION OF CHLOROPHYLL CONCENTRATION IN MAIZE USING SPECTRAL REFLECTANCE
crops spectral reflectance chlorophyll content
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2015/5/6
The objective of this research was to identify the relationship between chlorophyll contents and spectral measurements in a maize crop. Spectral measurements were taken and the chlorophyll content w...
Single-hole spectral function and spin-charge separation in the t-J model
Worm hole green's function monte carlo simulation spectral analysis spectral function thermodynamics
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2014/12/22
Worm algorithm Monte Carlo simulations of the hole Green function with subsequent spectral analysis were performed for 0.1<~J/t<~0.4 on lattices with up to L×L=32×32 sites at a temperature as low as T...
Spectral spatial coherence of high-power multi-chip LEDs
Spectral spatial coherence high-power multi-chip LEDs
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2013/7/3
We investigate the spatial coherence of the light generated from high-power multi-chip red LEDs by using the van Cittert-Zernike theorem. It is theoretically demonstrated that the light generated from...
A Second Order Finite Difference-Spectral Method for Space Fractional Diffusion Equation
A Second Order Finite Difference-Spectral Method Space Fractional Diffusion Equation
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2012/8/7
A high order finite difference-spectral method is derived for solving space fractional diffusion equations, by combining the second order finite difference method in time and the spectral Galerkin met...
SPECTRAL REGRESSION DISCRIMINANT ANALYSIS FOR HYPERSPECTRAL IMAGE CLASSIFICATION
Dimensionality reduction Hyperspectral image classification manifold learning Eigen-decomposition Spectral regression discriminant analysis Embedding function
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2014/4/28
Dimensionality reduction algorithms, which aim to select a small set of efficient and discriminant features, have attracted great attention for Hyperspectral Image Classification. The manifold learnin...
Spectral control of broadband light through random media by wavefront shaping
Spectral control of broadband light random media wavefront shaping Optics
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2012/5/31
A random medium can serve as a controllable arbitrary spectral filter with spectral resolution determined by the inverse of the interaction time of the light in the medium. We use wavefront shaping to...
A Bloch decomposition based split-step pseudo spectral method for quantum dynamics with periodic potentials
Schrodinger equation Bloch decomposition time-splitting spectral method semiclassical asymptotics lattice potential
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2012/5/24
We present a new numerical method for accurate computations of solutions to (linear) one dimensional Schr\"odinger equations with periodic potentials. This is a prominent model in solid state physics ...
A time-splitting spectral scheme for the Maxwell-Dirac system
Maxwell-Dirac system time-splitting spectral method semi-classical asymptotics WKB-expansion
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2012/5/24
We present a time-splitting spectral scheme for the Maxwell-Dirac system and similar time-splitting methods for the corresponding asymptotic problems in the semi-classical and the non-relativistic reg...