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Hydrogel amendment to sandy soil reduces irrigation frequency and improves the biomass of Agrostis stolonifera
Sand Water Use Efficiency Hydrogel Irrigation Biomass Agrostis Stolonifera
2013/3/5
Soil water potential indicates the water status of the soil and the need for irrigation. The effect of hydrogel amendment to the upper sand soil layer on water infiltration into the lower un-amended s...
Virulence Frequency to Powdery Mildew Resistances in Winter Barley Cultivars
barley Blumeria graminis f.sp. hordei Hordeum vulgare powdery mildew resistances
2014/3/11
Virulence frequencies to powdery mildew resistances in winter barley cultivars mostly registered in
the Czech Republic were studied in 2007 and 2008. Random samples of the air populations originatin...
Adaptive hysteresis band control for constant switching frequency in DTC induction machine drives
Constant switching frequency direct torque control induction machinedrive torque ripple
2010/3/17
It is fairly well known that direct torque control (DTC) exhibits fast dynamic torque response, a property that originates in the fact that torque and flux is directly controlled by instantaneous spac...
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...
Effects of turning frequency on composting of chicken litter in turned windrow piles
composting turning frequency moisture content total nitrogen total carbon C:N ratio
2008/11/26
abstract0.05) pH, temperature, rate of composting and maturation time, but it affected (P<0.05) moisture content, dry matter, total carbon, total nitrogen and carbon to nitrogen ratio of composting pi...
Effect of extremely high frequency electromagnetic fields on the microbiological community in rhizosphere of plants
electromagnetic fields rhizosphere microflora presowing treatment
2008/11/24
Electromagnetic fields (EMF) are widely used to stimulate germination of seeds, improve their quality and speed up the growth of plants. This research was aimed at investigation of the influence of EM...
Influence of laser beams combined with chemomutagen (MNU) on the variability of traits and mutation frequency in spring barley
combined treatment barley biostimulation mutation laser N-methyl-N-nitrosourea
2008/11/24
Laser light as a pure ecological factor started to be used as a plant biostimulator. It is especially important in the case of short exposures to laser light. However, prolongation of irradiation indu...
Suitable stroke and frequency for nut detachment of different pistachio varieties
frequency stroke pistachio detachment percentage varieties
2008/11/12
In order to determine the suitable stroke and frequency for the detachment percentage of pistachio nut and cluster off the tree, a mechanical shaker was used. In the three experiments with 125 trees f...
TDR and low-frequency measurements for continuous monitoring of moisture and density in a snow pack
snow density moisture time domain reflectometry
2008/11/12
An in-situ sensor for the simultaneous measurement of density and liquid water content of snow is presented in this paper. The system consists of radio frequency transmission lines of up to 25 m lengt...
GARBAGE COLLECTORS: OCCUPATIONAL ACCIDENTS AND COEFFICIENTS OF FREQUENCY AND SEVERITY PER ACCIDENT
occupational accidents garbage collectors Coefficient of Frequency
2010/12/27
The present study was conducted in order to determine the number of occupational accidents (OA), the Coefficient of Frequency per OA (CFOA) and the Coefficient of Severity per OA (CSOA) among garbage ...