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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Unit commitment problems and their compact and simple models, algorithms, and applications
Unit commitment problems 机组组合 电力系统优化
2023/4/14
机组组合(UC)作为电力系统优化运行的基本问题之一，其模型的质量严重影响着求解器的求解效率，如何建立高质量的UC问题模型则成为近年研究的热点。为此，我们从大规模电力系统UC问题的模型、算法和应用方面展开研究，主要内容包括：针对单机组组合(1UC)问题，基于Facet、凸包以及动态规划相关理论，研究全新的1UC问题统一建模框架，给出1UC问题一系列适用于不同场景、不同算法的高质量模型；基于滑动窗口、...
When curved materials flatten, simple geometry can predict the wrinkle patterns that emerge（图）
弯曲材料 皱纹图案 柔性电子产品
2023/7/7
An object that’s intrinsically flat, say a piece of paper, can be shaped into a cylinder without stretching or tearing it. The same isn’t true, however, for something intrinsically curved like a conta...
Researchers at Carnegie Mellon University have developed an efficient new way to quickly analyze complex geometric models by borrowing a computational approach that made photorealistic anima...
MIGRATION OF DIGITAL CARTOGRAPHY TO CITYGML; A WEB-BASED TOOL FOR SUPPORTING SIMPLE ETL PROCEDURES
CityGML GIS Extract Transform and Load ETL, Open Source
2018/11/9
Digital cartography is notably produced in all countries, in different scales and formats. Latest cartographic production aims at creating 3D objects with topological consistency and rich information ...
Virginia Tech architecture professor,students reduce structural vibrations with simple,groundbreaking device
Virginia Tech architecture professor students reduce structural vibrations with simple groundbreaking device
2017/2/16
A revolutionary portable device invented by Virginia Tech architecture professor Mehdi Setareh with help from students promises to make structural vibration-reducing technology uni...
A SIMPLE AND EFFECTIVE RETRIEVAL OF LAND SURFACE TEMPERATURE USING A NEW REFLECTANCE BASED EMISSIVITY ESTIMATION TECHNIQUE
Land surface temperature Emissivity ASTER Urban Heat Island Hong Kong TES
2016/11/30
Emissivity is a significant factor in determining land surface temperature (LST) retrieved from the thermal infrared (TIR) satellite images. A new simplified method (reflectance method) for emissivity...
SPATIOTEMPORAL EVALUATION OF NOCTURNAL COLD AIR DRAINAGE OVER A SIMPLE SLOPE USING THERMAL INFRARED IMAGERY
Infrared camera Cold air drainage velocity Cooling rates Cold air pooling Microclimate Radiation frost
2016/11/30
Measurements of climatic processes such as cold air drainage flows are problematic over mountainous areas. Observation of cold air drainage is not available in the existing observation network and it ...
A SIMPLE INTERPRETATION OF THE RICE SPECTRAL INDICES SPACE FOR ASSESSMENT OF HEAVY METAL STRESS
Heavy metal stress Hyperspectral data Spectral indices space Visualization Rice
2016/11/23
Heavy metal stress will induce the change of the bio-parameters like chlorophyll, nitrogen and water content of rice. In this paper, we analyzed the traditional spectral index which has strong relatio...
DEVELOPMENT AND EVALUATION OF SIMPLE MEASUREMENT SYSTEM USING THE OBLIQUE PHOTO AND DEM
Photogrammetry Measurement DEM Orientation System Development
2016/11/11
When a disaster occurs, we must grasp and evaluate its damage as soon as possible. Then we try to estimate them from some kind of photographs, such as surveillance camera imagery, satellite imagery, p...
DIRECT GEOREFERENCING OF UAV DATA BASED ON SIMPLE BUILDING STRUCTURES
image orientation structure from motion tie points building structures
2016/7/5
Unmanned Aerial Vehicle (UAV) data acquisition is more flexible compared with the more complex traditional airborne data acquisition. This advantage puts UAV platforms in a position as an alternative ...
A simple and efficient all-optical production of spinor condensates
simple efficient all-optical production spinor condensates
2016/1/23
In the last two decades, many techniques have been devel-oped to reliably generate a Bose-Einstein condensate (BEC)of more than 10 4 atoms. Almost every one of these techniques requires evaporative co...
A SIMPLE METHOD FOR INFORMATION EXTRACTION OF FARM FIELD IN TARIM RIVER BASIN USING MODIS DATA
Tarim River Basin MODIS Vegetation Index Time Series Farm Field
2015/12/31
High spatial resolution remote sensing data are expensive and hard to cover the whole basin at the same time in Tarim river basin, while, the low spatial resolution data, such as MODIS, which spatial ...
Deriving Spatio-Temporal Relations from Simple Data Structure
Data Structure Operation Query Object Spatial Temporal
2015/12/1
A spatiotemporal data model is incomplete without three components: classes, consistency constraints, and operators. Classes define the structure of the model, constraints enforce consistency in the m...
Reduced dietary intake of simple sugars alters perceived sweet taste intensity but not perceived pleasantness
human low sugar psychophysics sucrose sugar reduction
2018/11/23
Background: Individuals who adhere to reduced-sodium diets come to prefer less salt over time, but it is unclear whether sweet taste perception is modulated by reduced sugar intake.
Simple Tools for Architectural Photogrammetry
Photogrammetry Surveying Architecture CAD Cultural Heritage
2015/11/11
In this paper a CAD application embedding photogrammetric procedures is described. Oleg Kolbaskin has originally created the CAD application and the photogrammetric procedures were programmed in the D...