搜索结果: 1-15 共查到“农业生物物理学 properties”相关记录112条 . 查询时间(0.144 秒)
Moisture-dependent physical properties of kokum seed (Garcinia indica Choisy)
kokum butter engineering properties angle of repose terminal velocity static coefficient of friction
2014/9/22
Designing the equipment for processing, sorting and sizing of agricultural crops requires information about the crops’ physical properties. The physical properties of kokum seed were evaluated as a fu...
超声波处理对小麦胚芽球蛋白理化和功能性质的影响（Effect of Ultrasound Treatment on Physicochemical and Functional Properties of Wheat Germ Globulin）
小麦胚芽球蛋白 理化性质 功能性质
2009/9/11
采用超声波处理小麦胚芽球蛋白以提高其功能性质。研究了超声波处理对小麦胚芽球蛋白理化和功能性质的影响。结果表明：经超声波处理后，小麦胚芽球蛋白的巯基和二硫键含量、紫外光谱和荧光光谱均发生了显著的变化。随着超声波功率的增加，小麦胚芽球蛋白的疏水性、起泡性、起泡稳定性、乳化性和乳化稳定性都降低；当超声波功率大于900?W时，由于小麦胚芽球蛋白重新伸展，疏水基团暴露增多，引起疏水性、起泡性、起泡稳定性、乳...
微波频率和温度对食用植物油介电特性的影响（Effect of Frequency and Temperature on Microwave Dielectric Properties of Edible Vegetable）
食用植物油 介电特性 温度
2009/9/11
采用同轴探头技术研究了20～90℃、200～4500MHz内菜籽油、大豆油、花生油、玉米油、调和油的介电特性，分析了介电参数值随频率和温度变化的原因。结果表明：同频率下，菜籽油具有最大的相对介电常数和最小的介质损耗因数，而玉米油则相反。在500～4000MHz间，介电参数与食用油中的饱和与不饱和脂肪酸含量间具有较好的线性相关性。相对介电常数随温度升高线性减小，但介质损耗因数则线性增大。菜籽油的介电...
Determination of selected physical properties of Brachystegia eurycoma seeds
physical properties angle of repose solid density Brachystegia eurycoma
2014/2/26
The research looked at some selected physical properties of Brachystegia eurycoma, such as axial dimension, roundness, sphericity, surface area, bulk density, solid density, porosity, and volume which...
Aerodynamic and geometric properties of amaranth seeds
amaranth seeds geometrical features aerodynamic properties
2008/11/26
Geometrical properties (thickness, width and length) of individual amaranth seeds were measured by means of an optic device. The measurements allowed us to be calculated the values of seeds bearing s...
Aeration properties and enzyme activity on the example of Arenic Chernozem (Ti筰ce)
aeration properties enzyme activity Arenic Chernozem
2008/11/26
The purpose of this paper is to characterise aeration properties of 3 horizons of Arenic Chernozem profiles situated in Tišice (typical for the agricultural production region of Central Bohemia, ...
Aspects of red soil properties and water management in China
soil water red soil in China
2008/11/26
This paper is a brief reviev of studies on red soil water properties and its management in the tropics and subtropics of China. Although annual precipitation is more than evaporation, there is still s...
Assessment of the conditions for the formation of organic-mineral complexes in soils on the basis of surface properties
mineral-organic complexes humus acids specific surface area molar energy of adsorption
2008/11/26
In this study the author made an attempt at the determination of the character of the surface of humus acid and clay mineral complexes, with iron and calcium acting as bonding agents, taking into acou...
Effects of pre-shelling treatment on the physical properties of cashew nut (Anacardium occidentale)
cashew nut pre-shelling treatment steam boiling hot oil roasting
2008/11/26
Thorough knowledge of the physical properties of cashew nuts in its present form is necessary in the design of its shelling machine. A study was carried out to determine the effects of pre-treatment b...
Effects of temperature and moisture content on the strength properties of African nutmeg (Monodora myristica)
deformation failure stress strain energy
2008/11/26
The effect of temperature and moisture content of African nutmeg seed coat was studied as it affects compressive force, deformation, failure stress, strain energy and modulus of elasticity (firmness)....
Effects of tillage operation on soil properties from Pakdasht, Iran
bevameter pressure-sinkage relationship sinkage plates soil properties
2008/11/26
Soil mechanics has of late, taken on a new significance as a field worthy of expended research and application. The basic problem encountered in this field is the determi- nation of certain basic par...
Impact of microstructure in modelling physical properties of cereal extrudates
microstructure physical properties extrudate cereals extrusion-cooking
2008/11/26
A research was carried out into the extrusion process of corn semolina and oat bran mixtures with single- and twin-screw extrusion-cooking. The effect of an extruder used, of the concentration of oat ...
Spatial characteristic of hydro-physical properties in arable mineral soils in Poland as illustrated by field water capacity (FWC)
field water capacity Polish soils
2008/11/26
The spatial characteristics of the field water capacity (FWC) of Polish soils have been presented. It was found that their values range from 3.9 to 45.5 %, vol. in relation to soil units and are mostl...
Analysis of the strength properties of pea stems
pea stem cutting work geometric parameters anatomical structure
2008/11/26
In the study the authors determined the mechanical properties of pea stems, in the dynamic test, as well as the wall thickness of hollow stem (G) and cross-section area (S). The study was conducted o...
Changes in the hydrophysical properties of peat soils under anthropogenic evolution
peat soils anthropogenic evolution water retention hydraulic conductivity
2008/11/24
The changes in the water characteristics of peat soils under anthropogenic evolution was investigated. It was stated that the transformation of organic formations as a result of drainage and agricultu...