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Validation of hydrogen cyanide fumigation in flourmills to control the confused flour beetle
mills food safety pest control insecticides fumigant
2015/3/30
In the milling industry, the Tribolium confusum is hard to exterminate pest. We measured the concentration time product (Ct-P) achieved during the hydrogen cyanide (HCN) fumigation and examined whethe...
臭蜣螂唇基切土减阻的力学分析(Mechanical Analysis of Clypeus Surface of Dung Beetle (Copris ochusMotschulsky) in Soil-cutting Resistance Reduction)
臭蜣螂 仿生学 三面楔
2009/11/3
对臭蜣螂头部的激光三维扫描点云进行简化处理,在三维坐标系中建立垂直平面截取部分唇基实体,并将其简化为三面楔模型,进行不同运动方向的受力分析。结果表明,在臭蜣螂挖土打洞过程中唇基有利的挖土切割方式主要为滑移切割,这种切割方式基于唇基天然的优化形状,即半圆形的刃口形状和特定的曲面变化。并发现唇基曲面形状对减小挖掘阻力具有重要作用。最后分析了臭蜣螂唇基潜在的仿生应用,其天然优化的形状和切割角的自动调节可...
An assessment of critical assumptions supporting the timber supply modelling for mountain-pine-beetle-induced allowable annual cut uplift in thePrince George Timber Supply Area
allowable annual cut immature pine mortality mountain pine beetle timber shelf life
2009/2/11
To address the mountain pine beetle epidemic, the allowable annual cut (AAC) for the Prince George Timber Supply Area (TSA) has been increased by 5.7 million m3 to 14.944 million m3. Timber supply mod...