钻孔岩屑

Herschell-Buckley model have another name called H-B model, equation form as follows:〓 Rheology equation of broad sense:〓 The equation is to sheat rate:〓 In the flow of the annular interspace of the pipeline:〓 thereinto n'=〓 All of the experiment of this thesis utilize the rheology test-bed, it can test the pressure losses relevant datum, and imitate the hole and carry on the test related to rock bits movement.

Wise通过对消防泡沫流经普通铁管的流动阻力的研究发现，泡沫并没有宾汉模型的屈服值，认为泡沫纯粹属于假塑性流体，其流变模式为： Logμ=logτ〓+alog〓+b Mitchell使用毛细管研究泡沫流动，Mitchell用下式计算τ〓和μ〓：〓而Buckingham-Reiners对泡沫修正了用于管内流动的宾汉塑性模型，形式如下：〓 Herschell-Buckley模型—又称H—B模型，方程形式为：〓广义流变方程：〓剪切速率方程为：〓在环空中的流动时〓其中〓完成本论文的所有工作都是在试验台上进行，在该试验台上可进行与压力损失相关的数据测试，可模拟钻孔进行与岩屑运动有关的测试研究。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。