搜索结果: 1-15 共查到“工学 entropy”相关记录37条 . 查询时间(0.156 秒)
袁源副研究员：Blowup of the entropy-bounded classical solutions to the nonisentropic compressible Navier-Stokes equations
非等熵 可压缩 纳维-斯托克斯方程 熵界经典解 爆炸
2023/4/11
This talk concerns the instantaneous blowup of entropy-bounded classical solutions to the vacuum free boundary problem or the Cauchy problem of nonisentropic compressible Navier-Stokes equations.
LAND USE AND LAND COVER CHANGES AND URBAN SPRAWL IN RIYADH,SAUDI ARABIA:AN ANALYSIS USING MULTI-TEMPORAL LANDSAT DATA AND SHANNON'S ENTROPY INDEX
Land Use Land Cover Change Shannon’s Entropy Riyadh
2016/12/1
The city of Riyadh, Saudi Arabia has experienced rapid population growth and urban expansion over the past several decades. Due to such growth, the capital city faces many short and long-term social a...
FOREST TREE SPECIES DISTRIBUTION MAPPING USING LANDSAT SATELLITE IMAGERY AND TOPOGRAPHIC VARIABLES WITH THE MAXIMUM ENTROPY METHOD IN MONGOLIA
Tree species mapping Landsat imagery Maximum Entropy Terrain variable Mongolia
2016/11/30
Forest is a very important ecosystem and natural resource for living things. Based on forest inventories, government is able to make decisions to converse, improve and manage forests in a sustainable ...
AN ENTROPY-KL STRATEGY FOR ESTIMATING NUMBER OF CLASSES IN IMAGE SEGMENTATION ISSUES
entropy KL information spiltting/merging number of classes image segmentation fuzzy clustering
2016/11/23
different classes, to estimate the number of classes in image segmentation issues. In this strategy, the information of a homogeneous region is measured by entropy. Then a region is considered to be d...
Dom Quality Evaluation Based on Multi-Level Fuzzy Comprehensive Assessment of Entropy Weights
GIS Analysis Sampling Image Quality Entropy Weight
2015/12/18
With the development of RS technology, the evaluation of DOM becomes more important. Multi-level fuzzy comprehensive evaluation is the traditional method for DOM evaluation. But in the process of trad...
Researchers Create First Entropy-Stabilized Complex Oxide Alloys
Researchers Entropy-Stabilized Complex Oxide Alloys
2015/10/13
Configurational disorder can be compositionally engineered into mixed oxide by populating a single sublattice with many distinct cations. The formulations promote novel and entropy-stabilized forms of...
QUALITATIVE AND QUANTITATIVE ASSESSMENT OF HIGH RESOLUTION MULTISPECTRAL IMAGE USING FUSION TECHNIQUE BY MEASURING ENTROPY– A CASE STUDY USING QUICKBIRD DATASET
Information Fusion Entropy
2015/8/31
This paper presents the qualitative as well as quantitative assessment of high resolution image generated by fusion technique. The
information contained in fused image measured and compared with diff...
Solution to Joint Entropy and Its Applications In Remote Sensing
Statistics Application Multispectral
2015/7/15
Based on Shannon’s theory, joint entropy is a statistical mean of information content and could be employed to evaluate image
information. However, the computation complexity of joint entropy affects...
Formulation of Kinetic Energy Preserving Conservative Schemes for Gas Dynamics and Direct Numerical Simulation of One-Dimensional Viscous Compressible Flow in a Shock Tube Using Entropy and Kinetic Energy Preserving Schemes
Preserving Conservative Schemes Gas Dynamics Direct Numerical Simulation One-Dimensional Viscous Compressible Flow
2015/7/2
This paper follows up on the author’s recent paper “The Construction of Discretely Conservative Finite Volume Schemes that also Globally Conserve Energy or Enthalpy”.
The Construction of Discretely Conservative Finite Volume Schemes that Also Globally Conserve Energy or Entropy
Construction Finite Volume Schemes Also Globally Conserve Energy
2015/7/2
Throughout the history of the development of discrete methods for linear and nonlinear conservation laws, and in particular computational fluid dynamics, there has been an ongoing struggle to &#...
The construction of discretely conservative finite volume schemes that also globally conserve energy or entropy
discretely conservative fi nite entropy
2015/6/23
If shock waves appear in the solution, the discretization must be augmented by appropriate
shock operators to account for the dissipation of energy by the shock waves.
Formulation of Kinetic Energy Preserving Conservative Schemes for Gas Dynamics and Direct Numerical Simulation of One-dimensional Viscous Compressible Flow in a Shock Tube Using Entropy and Kinetic Energy Preserving Schemes
Energy Preserving Conservative Kinetic Energy Preserving
2015/6/23
This paper follows up on the author’s recent paper “The Construction of Discretely
Conservative Finite Volume Schemes that also Globally Conserve Energy or Enthalpy”.
In the case of the gas dynamics...
Entropy based determination of optimal principal components of Airborne Prism Experiment (APEX) imaging spectrometer data for improved land cover classification
High resolution data hyper spectral land cover classification feature extraction
2014/12/15
Hyperspectral data finds applications in the domain of remote sensing. However, with the increase in amounts of information and advantages associated, come the "curse" of dimensionality and additional...
New ‘High-Entropy’ Alloy Is As Light As Aluminum, As Strong as Titanium Alloys
High-Entropy As Light As Aluminum As Strong as Titanium Alloys
2014/12/30
Researchers from North Carolina State University and Qatar University have developed a new “high-entropy” metal alloy that has a higher strength-to-weight ratio than any other existing metal material....
A New Method for Geometric Quality Evaluation of Remote Sensing Image Based on Information Entropy
Image Quality Information Entropy Geometric Accuracy Uncertainty Image Rectification
2014/11/28
Geometric accuracy of the remote sensing rectified image is usually evaluated by the root-mean-square errors (RMSEs) of the ground control points (GCPs) and check points (CPs). These discrete geometri...