搜索结果: 1-15 共查到“农学总论 Pressure”相关记录16条 . 查询时间(0.046 秒)
Effects of drip irrigation circuit design and lateral line lengths: I—On pressure and friction loss
Drip Irrigation Circuit Laterals Pressure Friction
2013/2/28
Laboratory tests were conducted at the Irrigation Devices and Equipment’s Test Laboratory, Agricultural Engineering Research Institute, Agriculture Research Center, Giza, Egypt. The experimental desig...
Scaling of two-phase capillary pressure-saturation relationships: water-air and oil-air systems
immiscible phases capillary pressure-satura- tion relationship interfacial tension scaling
2008/12/2
Solutions of various problems related to soil contamination by nonaqueous phase liquids (NAPL) require a knowledge of capillary pressure-saturation relationships. In soil-water-air systems, this rela...
Effects of moisture content of grain layers and their arrangement in the silo on the temperature and pressure distribution
cereals silo temperature pressure distribution
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...
Analysis of correlations between the influence of electrostatic field and of pressure on the dielectric permitivity of grain
energy savings heterogeneous dielectrics grain striction forces electric permitivity
2008/11/26
The paper presents description of a test stand to relations between electric permitivity of grain on pressure and intensity of electrostatic field. On the basis of measurements, it has been found that...
Comparison of magness-taylor抯 pressure test with mechanical, non-destructive methods of apple and pear firmness measurements
apples pears firmness measurement non-destructive mechanical methods
2008/11/21
0.890) between MT x F methods was observed for the pears with firmness below 20 N (measured by MT method). It may be concluded that the measurement method for the coefficient of elasticity using the F...
Effect of moisture content of cereal grains layer on pressure distribution on silo wall
silo grain pressure distribution loisture content
2008/11/21
The paper presents the results of measurements of silo wall pressure during the storage of yheat, barley and oats grain. The study was conducted on a ;st station. The test silo was filled with two lay...
Effect of the triticale grain moisture content on the spontaneous heating of grain and on the pressure against the silo wall
triticale moisture content silo heating
2008/11/19
The author presents the results of studies on the temperature and horizontal pressure of triticale grain in a model silo. The studies included grain with an initial moisture content of 13, 16 and 18% ...
Effect of triticale moisture content and slenderness ratioof a silo on pressure distribution
triticale moisture content slenderness of a silo pressure bridging
2008/11/19
Results of stand studies on the vertical and horizontal pressure of triticale grains with different moisture content (u1 = 0.212 and u2 = 0.245 kg kg-1 d.b.) in silos of H/D1 = 15 and H/D2 = 8 slender...
Grain pressure in a model silo as affectedby moisture content increase
grain silo pressure swelling
2008/11/18
Swelling pressure of wetted grain was measured in a model silo. Experimental set was designed to simulate the conditions under which grain is subjected to wetting by ambient air of the humidity highe...
Research on the influence of the technical conditions of a homogenizer pump on the quality of the process of pressure homgenization
homogenization monitoring
2008/11/18
The research presented in this paper refers to the role of the technical condition of the plunger pump’s working units vis-a-vis the quality of homogenized emulsion. Technical condi- tion was de...
Research on the influence of the technical conditions of a homogenizer pump on the quality of the process of pressure homogenization
homogenization monitoring
2008/11/18
A b s t r a c t. The research presented in this paper refers to the role of the technical condition of the plunger pump’s working units vis-a-vis the quality of homogenized emulsion. Technical co...
Performance of earth pressure cell as grain pressure transducer in a model silo
bulk solids granular material pressure ratio pressure cell silo loads
2008/11/14
Numerous methods have been proposed for determining the pressure exerted by grain at discrete locations in a storage structure, but few satisfactory solutions have been found. Earth pressure cells wer...
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...
Pressure ratio of cereal grains determined in a uniaxial compression test
pressure ratio cereal grain storage structures
2008/11/13
The pressure ratio of cereal grains was determi- ned in a uniaxial compression test. Experiments were performed according to Eurocode 1 recommendations. The tester was 210 mm in diameter and 100 mm hi...
Pressure ratio of cereal grains determined in a uniaxial compression test
pressure ratio cereal grain storage structures
2008/11/13
The pressure ratio of cereal grains was determined in a uniaxial compression test. Experiments were performed according to Eurocode 1 recommendations. The tester was 210 mm in diameter and 100 mm hig...