搜索结果: 1-5 共查到“农业基础学科 microwave”相关记录5条 . 查询时间(0.14 秒)
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...
小麦胚芽的微波在线稳定化试验（Study on Technology of Stabilized Storage of Wheat Germ by On-line Microwave Processing）
麦胚 微波 在线 稳定化
2009/9/11
麦胚具有快速酸败变质的特性，为提高麦胚稳定性，利用研发的麦胚在线微波稳定化处理工艺和装备，选取不同微波功率和处理时间等工艺参数进行试验，研究不同条件对麦胚稳定化效果的影响。结果表明，采用微波功率2.8kW、时间4min处理的麦胚，在30d加速贮藏后，脂肪酶相对酶活17.63％，过氧化值3.81mmol/kg，酸价14.65mg/g，VE损失率5.29％，氮溶解指数51.10％，含水率3.72%，脂...
Combined Use of Microwave and IR Data for the Study of Indian Monsoon Rainfall – 2009
Rainfall Monsoon Microwave Infrared Automatic Weather Station
2016/4/8
In the present study, an attempt has been made to analyze the rainfall during the onset and progress phase of the Indian summer monsoon of 2009 starting from the onset period to August using IMSRA tec...
Internal damage vs. mechanical properties of microwave-dried wheat grain
drying moisture content damage index stress strain modulus of elasticity
2008/11/24
Grain of Almari winter wheat variety, with two levels of initial moisture content (20 and 25%), was microwave dried for different time periods from 2.5 to 25 min. The resultant internal cracks were d...
Comparison of Open-Ended Coax and TDR sensors for the measurement of soil dielectric permittivity in microwave frequencies
TDR Open-Ended Coax sensor soil permittivity
2008/11/21
The study presents a comparison of two sensors for the determination of the complex permittivity of soil: a three- rod TDR probe and an Open-Ended Coax probe. The measurements were performed using a T...