搜索结果: 1-11 共查到“工学 Water content”相关记录11条 . 查询时间(0.062 秒)
Evaluations of the effects of soil properties and electrical conductivity on the water content reflectometer calibration for landfill cover soils
soil electrical conductivity soil index properties time domain reflectometry volumetric water content WCR calibration
2016/8/2
This study presents soil-moisture calibrations using low-frequency (15–40 MHz) time domain reflectometry (TDR) probe, referred to as water content reflectometer (WCR), for measuring the volumetric wat...
CANOPY WATER CONTENT RETRIEVAL FROM HYPERSPECTRAL REMOTE SENSING
Remote Sensing Hyperspectral Canopy Water Content
2015/9/8
Biogeochemical processes in plants, such as photosynthesis, evaporation and net primary production, are directly related to foliar
water. Therefore, canopy water content is important for the understa...
Using spectral information at the nir water absorption features to estimate canopy water content and biomass
Vegetation Canopy water content Biomass
2015/8/20
Biomass is one of the key biophysical variables of interest in vegetation studies and it can be defined in terms of fresh matter weight
or dry matter weight. Biogeochemical processes, such as photosy...
Diurnal Difference Vegetation Water Content (ddVWC) of Advance Microwave Scanning Radiometer-Earth Observing System (AMSR-E) for assessment of crop water stress at regional level
AMSR-E Vegetation water content Diurnal Difference Crop water stress
2014/12/15
Advance Microwave Scanning Radiometer – Earth Observing System (AMSR-E) derived Vegetation Water Content (VWC) at predawn (01:30 LST, descending pass) and afternoon (13:30 LST; ascending pass) were us...
Using the Dual Energy Gamma-Ray Transmission Technique to Measure Soil Bulk Density and Water Content of Central Southwestern Nigerian Soils
Dual Energy Gamma-Ray Bulk Density Water Content Radiological Attenuation Coefficient
2013/3/12
In this work, a radiological technique which simultaneously measures soil bulk density and water contents accurately and quickly in a non-destructive manner at different depths of the soil profile of ...
黄土区农草混合利用坡面土壤水分空间变异性（Spatial Variability of Soil Water Content on a Cropland-grassland Mixed Slope Land in the Loess Plateau, China）
土壤水分 农草混合结构 空间变异性
2010/12/29
通过对黄土区农草混合利用坡面的土壤水分分析，研究土地利用结构对土壤水分空间变异特性的影响。结果表明，研究区坡面土壤水分呈中等变异，且农草混合利用结构明显增加了土壤水分的空间变异强度，坡面土壤水分具有明显空间结构性。干湿条件下坡面0～60cm土层平均含水率的半方差最优理论模型分别为高斯模型和球状模型，且干旱条件较湿润条件下保持较高的基台值和变程，而块金值/基台值相对较低。Kriging插值结果显示...
Rapid Estimation of Water Content of Sour Natural Gases
Natural gas Water content Sour gas Correlation Gas processing Acid gas
2010/9/8
Water is associated with natural gas from the reservoir, through production and processing and is a concern in transmission. Also the water content of sour natural gases is an important parameter in t...
Water content changes along shear planes in drained and undrained triaxial compression tests on unsaturated cohesive soils
Water content drained and undrained shear triaxial compression tests failure plane
2009/10/14
Drained and undrained triaxial compression tests were run on undisturbed samples of two unsaturated cohesive soils to study water content changes in drained and undrained conditions along shear planes...
Condensation of L-Ascorbic Acid and Medium-Chain Fatty Acids by Immobilized Lipase in Acetonitrile with Low Water Content
L-Ascorbic acid medium-chain fatty acid immobilized lipase
2009/7/7
Lipase from Candida antarctica immobilized on a macroporous acrylic resin, Novozym®435, could catalyze the condensation of L-ascorbic acid and medium-chain fatty acids with chain lengths of 6 to 1...
The role of water content for the emeraldine base structure
X-ray diffraction crystalline structure polyaniline water absorption
2009/2/6
A series of the polyaniline samples in the emeraldine base form was synthesised in various conditions,and was then subjected to the experimental X-ray diffraction measurements and a computer modelling...
Calibration and Simultaneous Monitoring of Soil Water Content and Salinity with Capacitance and Four-electrode Probes
Dielectric probe four-electrode probe calibration salinity water content
2009/2/5
Non-destructive monitoring of soil water content (W) and the electrical conductivity of the soil solution (ECw) has been desired for environmental evaluation and sustainable agriculture. Dielectric pr...