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Orthotropic tension behaviors of poplar and Chinese fir were investigated at a wide relative humidity (RH) range. Background and Objectives: Poplar and Chinese fir are typical plantation tree species ...
The goal of the experiment was to assess the physical stress experienced by an operator during the use of harvester equipment. Experimental data was obtained from field measurements with a Biofeedback...
Tension wood is considered to be an important defect by the wood processing industries. A considerable amount of research has been done to determine the presence and structure of tension wood; however...
为了描述喷雾液的动态表面张力与雾滴粒径的关系,用粒度分析仪对不同表面张力喷雾液喷雾时形成的雾滴体积中径D50进行了研究,重点考察了喷头尺寸、喷雾压力对D50的影响。结果表明:喷雾液0.023s时的动态表面张力值γ0.023越低,所形成的雾滴D50越小,D50与γ0.023呈线性相关;喷雾压力相同时,随着喷头尺寸的增大,喷雾液动态表面张力的改变对雾滴粒径的影响增大;喷头尺寸相同时,随着喷雾压力的增大...
Tomatoes were grown in a plastic greenhouse under 2 irrigation programmes and four N-fertiliser concentrations (0, 100, 150 and 200 mg N l-1) of irrigation water. P and K concentrations were kept con...
Using numerically generated data, we previously showed that it is theoretically possible to estimate the soil hydraulic functions from the cumulative infiltration curve measured with a tension disc in...

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