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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...
Model development of the external friction of granular vegetable materials on the basis of artificial neural networks
external friction granular vegetable materials feed-forward artificial neural network
2008/11/26
The aim of the research conducted was the creation of a model of the phenomenon of the external friction of vegetable materials using a feed-forward artificial neural network (ANN). The network was ta...
Evaluation of vegetable and petroleum based diesel fuels in the aspect of lubricity in steel-aluminium association
RME fuel diesel fuel lubricity steel aluminium
2008/11/21
The paper presents the results of a study on wear resistance of elements of injection system operating in steelaluminium friction system with relation to the kind of fuel used. The fuels used in the s...
Improved rate controlled model for stress relaxation in vegetable tissue
potato tuber stress relaxation model thermal activation stress pre-strain sigmoid f-function
2008/11/14
Stress relaxation in two varieties of potato tubers was studied with the aim of proposing a more suitable rate control model (RCM) for description of the relaxation process in vegetable tissue. This m...
Physical properties of extrusion-cooked vegetable raw materials
extrusion-cooking physical properties
2008/11/14
Study results on the selected physical properties of extrudates obtained from various cereals, legume and oleaginous seeds processed in a twinscrew extruder are reported in the paper. Influence of bar...
Pressure homogenization in fruit-vegetable processing industry
pressure homogenization pomaced juices
2008/11/13
The present paper discusses the investigations concerning the possibility of application of pressure homogenization of fruit and vegetable juices using pressure homogenizers and the attempts undertake...