搜索结果: 1-15 共查到“工学 permeability”相关记录31条 . 查询时间(0.049 秒)
Correction of source-rock permeability measurements owing to slip flow and Knudsen diffusion: a method and its evaluation
Shale gas Permeability Knudsen diffusion Unconventional reservoir Source rock
2018/4/2
Source-rock permeability is a key parameter that controls the gas production rate from unconventional reservoirs. Measured source-rock permeability in the laboratory, however, is not an intrinsic prop...
REMOTE SENSING APPLICATION IN HIGHER PERMEABILITY AREA PREDICTION OF COAL BED METHANE
Remote Sensing Geology Application Prediction Coal Bed Methane Permeability Analogue Analysis Linear Feature
2015/12/29
As clean substitute energy source, coal bed methane is widely attractive worldwide. Remote sensing plays very important role in coal exploration in past experiences, it is also potential in coal bed m...
Calculating the effective permeability of sandstone with multiscale lattice Boltzmann/finite element simulations
Finite elements Lattice Boltzmann Multiscale simulation Porous media Synchrotron microtomography Upscaling
2015/7/1
The lattice Boltzmann (LB) method is an efficient technique for simulating fluid flow through individual pores of complex porous media. The ease with which the LB method handles complex boundary condi...
Determination of oxygen permeability and mechanical properties of the aluminium paper foils
packaging modulus of elasticity butter curd
2014/11/28
The paper deals with the determination of the oxygen permeability and mechanical properties of butter and curd aluminium paper foils Radaflex applied in the food packaging. Foil Radaflex is a paper fo...
Silage-corn harvesting machinery traffi c eff ects on soil bulk density and water permeability
repeated traffi c passes silage harvester soil compaction soil physical damage soil porosity
2014/2/24
Soil compaction caused by machinery traffi c aff ects the growth of agricultural crops and also has environmental eff ects
like soil damage and erosion. Field experiments were cond...
Determination of oxygen permeability of polyethylene and polypropylene nonwoven fabric foils
gas transmisivity equipment construction packaging mulching
2014/2/24
The paper deals with determination of oxygen permeability of the polyethylene and polypropylene foils applied in
mulching and food packaging. The construction of the equipment of measurement of gas ...
Research and practice on fluctuation water injection technology at low permeability coal seam
Low permeability coal seam Fluctuation water injection Permeable agent Dust fall Rock burst Cooling
2012/3/31
In order to solve the problem of poor affusion effect on low permeability coal seam, the paper analyzes the micro process of the coal seam water infusion in wetting coal and determines the main factor...
Complex permeability and permittivity variation of carbonyl iron rubber in the frequency range of 2 to 18 GHz
Carbonyl iron Silicon Permeability Permittivity
2010/10/25
The complex dielectric permittivity (Ɛ) and magnetic permeability (μ) of Radar Absorbing Materials (RAM) based on metallic magnetic particles (carbonyl iron particles) embedded in a dielectric ma...
Study of the Permeability of Foam Conditioned Soils with Laboratory Tests
Tunneling Earth pressure balance shields soil conditioning laboratory tests permeability test
2010/12/22
Problem statement: EPB tunneling requires that the excavated soil has a plastic and pulpy behavior to be able to apply a stabilizing pressure to the face, but it should also be impervious to counterac...
Relative Permeability Estimation by Ensemble Kalman Filter Using Function Transformation
Ensemble Kalman filter Function transformation Relative permeability Automatic history matching Sequential data assimilation
2010/9/8
The application of the ensemble Kalman filter (EnKF) using function transformation to the estimation of relative permeability is presented. Inconsistent values may be calculated in the filtering proce...
盘式吸渗仪吸渗率计算方法比较（Comparison among Permeability Methods of Disc Infiltrometer）
吸渗率 盘式吸渗仪 计算方法
2009/9/25
选用盘径为5cm和15cm的盘式吸渗仪，对杨凌塿土（粘土）和神木砂黄土（砂壤土）两种质地的土壤在0、－3、－6、－9、－12cm 水头5种负压下进行了室内吸渗实验，分析了不同盘径和负压对累积吸渗量的影响；并选用4种吸渗率公式对这两种质地土壤吸渗率进行了计算，以Vandervaere法为参考方法对该4种方法的适用性进行了分析。结果表明，在相同的时间内，两种土壤5 cm盘径下的累积吸渗量均大于15 c...
最小量润滑精密车削中切削液的渗透性（Permeability of Cutting Fluid in Minimum Quantity Lubrication Precision Turning）
最小量润滑 切削液 渗透
2009/8/11
分析了最小量润滑（MQL）切削中供液方位、供液距离等因素对切削液渗透能力的影响。在SB-CNC超精密数控机床上进行了MQL车削45号钢试验，通过对切削力、表面粗糙度和切屑形态的研究表明：喷嘴位于主后刀面且距刀尖20mm处供应较大量的切削液能达到良好的切削效果。
Water/gas Permeability of Bituminous Mixtures and Involvement in Blistering Phenomenon
Asphalt mixture Blistering Water permeability Gas permeability
2009/7/28
The blistering phenomenon is one of the major damages in bituminous pavement during a hot summer. The phenomenon was believed to be caused by water permeating from outside via channels of connected p...
温度对气调包装薄膜透气性的影响（Effects of Temperature on Gas Permeability of Films for Modified Atmosphere Packaging）
气调包装 薄膜材料 透气系数
2010/2/26
通过小袋法测定了不同材料薄膜分别在2、8、14、20℃下的薄膜透气系数，分析了温度对薄膜透气系数和透气系数比的影响。试验得出：随着温度的升高果蔬包装薄膜的透气系数增大，薄膜材料LDPE的透气系数比显著上升，但薄膜材料PVC的透气系数比在试验温度范围内呈现不同的变化趋势。薄膜透气系数与绝对温度之间满足Arrhenius方程，透气系数的自然对数值与绝对温度的倒数值之间呈显著的线性关系。 The gas...
Evaluation of Intestinal Dioxin Permeability Using Human Caco-2 Cell Monolayers
intestinal permeability dioxins Caco-2 cell food factor
2009/6/17
A system to evaluate the intestinal permeability for 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) was constructed with human intestinal Caco-2 cell monolayers. TCDD was added to the apical side of the c...