搜索结果: 1-15 共查到“农业生物物理学 temperature”相关记录22条 . 查询时间(0.14 秒)
Impact of water temperature and structural parameters on the hydraulic labyrinth-channel emitter performance
manufacturer’s coefficient of variation emission uniformity
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2014/10/28
The effects of water temperature and structural parameters of a labyrinth emitter on drip irrigation hydraulic performance were investigated. The inside structural parameters of the trapezoidal labyri...
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
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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 moisture content of grain layers and their arrangement in the silo on the temperature and pressure distribution
cereals silo temperature pressure distribution
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2008/11/26
In the present paper, results of temperature and pressure measurement of some cereals (triticale, rye, oat) along with the vertical silo wall were presented. Laminar filling of the silo with layers o...
Effects of temperature and moisture content on the strength properties of African nutmeg (Monodora myristica)
deformation failure stress strain energy
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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)....
Changes to the composition of colorants caused by the temperature of drying rapeseed
rapeseed oi temperature drying chlorophyl carotenoid
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2008/11/24
The pigment content in both seeds and oil has been an essential indicator of the oil quality, in particular for the cold pressed oil. The chlorophyll content in the seeds depends upon many agents, am...
Effect of bath temperature and soaking time on the dynamics of water holding capacity of everlasting pea-wheat extrudates
everlasting pea wheat extrusion water holding capacity
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2008/11/24
The paper presents the results of a study on the effect of soaking time and water bath temperature on the dynamics of hydration of everlasting pea-wheat extrudates. The extrudates were produced with v...
Development of multiple velocity and temperature probe sets for ventilated spaces
velocity temperature ventilation probe thermistor
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2008/11/21
Development of a low-cost computer-based system for multi-point measurement of velocity and temperature has been completed. The principle is based on hot-wire anemometry. A typical probe consists of ...
Effect of temperature and soluble solids content on the viscosityof cherry juice concentrate
cherry juice viscosity
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2008/11/20
The rheological behaviour of concentrated cherry juice has been studied over a wide range of temperatures (10-60°C) and concentrations (50-63.8°Bx), using a rotational rheometer with coaxial cylinders...
Effect of temperature control and high humidity on the preservationof JUFENG grapes
grapes preservation controlled-temperature-and-high-humidity maturity degree out-store test
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2008/11/20
The biochemical changes of JUFENG grapes of various degrees of maturity during controlled-temperature-and-high-humidity (CTHH) preservation were analyzed through tests. The rule changes for soluble so...
Effects of g irradiation, temperature and storage time on the status of the glucose, fructose and sucrose in onion bulbs Allium cepa L.
glucose fructose sucrose ionisation storage
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2008/11/19
The variations of glucose, fructose and sucrose in onion bulbs irradiated at 0.15 and 0.30 kGy and stored at 4, 10 and 20°C were investigated. Between 5 and 8 weeks glucose increased in concentration ...
Effects of grass cover and tillage on temperature of soil in sloping vineyard**
soil temperature sloping vineyard tillage grass cover
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2008/11/19
The effect of two management practices: grass cover (G) and traditional tillage (T) on the annual temperature variations of silt-loamy soil in inter-rows of sloping vineyard (Piedmont, Italy) was stud...
Fruit ripeness and temperature affect friction coefficient of McLemore and Gala apples
friction measurement ripeness temperature apple
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2008/11/18
The objective of this study was to determine the influence of apple flesh temperature and ripeness on the static and dynamic coefficients of friction. Two apple cultivars with two different degrees of...
Glass transition temperature of thermoplastic starches
thermoplastic starch glass transition temperature differential scanning calorimetry extrusion
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2008/11/18
Thermoplastic starch was produced by mixing potato starch and glycerol in a single screw extruder. The glass transition temperatures of the materials obtained were measured by differential scanning ca...
Influence of material's temperature on compression parametersof ground barley grains
agglomeration barley temperature parameters of material's compression
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2008/11/18
The paper presents the results of studies on the influence of temperature on the parameters of the pressure compression process and on indicators of material's compression ability for grains of four b...
Influence of temperature and variety on the thermal properties of apples
thermal properties of apples impulse method
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2008/11/18
The influence of temperature within the range 273 to 333 K (0-60°C) on the thermal properties of four apple varieties has (Jonathan Red, Golden Delicious, Idared, Jonagold) been studied. An impulse me...