细切

Siphonage system,peristaltic pump and a constant flow syringe pump were adopted to supply different kinds of flow and well defined shear rates.With inverted microscope and chargecoupled device,a series of reactions of platelets and chinese hamster ovary cells transfected with glycoprotein IbⅨ under flow conditions were recorded simultaneously.

利用包被vWF的细玻璃管模拟血管，分别采用负压装置、蠕动泵和恒流注射泵产生不同流态和精确剪切率的流体环境，结合倒置显微镜和电荷耦合器件图像传感器（CCD，Chargecoupled device）实时观察和记录血小板或细胞在流体作用下的一系列反应。

The transverse shearing deformation decreased obviously with the increase of the slenderness ratio and increased with the increase of total beam deformation.

横向剪切变形随梁的长细比增大而显著减小，随变形程度的增大而增大。

Sliced veneer for decoration.Cabinets,joinery,pianos and turnery.

平切单板供化装合板用、橱柜、细木器、钢琴、车只类。

On median sagittal section of rat brain, SFO is longer spindle in shape,its middle portion is the widest in diameter, its anteroventral end and postodorsal end are narrower.

在正中矢状切面上，SFO呈长梭形，其中间部最宽大，前腹侧端和背后端较窄细。

The hypo-volcanic crytoexplosion Breccia rock body and the felstone in the east-western shear zone are the important symbol of the exploration.

东西向脆－韧性剪切带内次火山隐爆角砾岩体、霏细岩脉的存在是区内重要的找矿标志。

The hypo-volcanic crytoexplosion Breccia rock body is formed of granite magma, which is rise to the lower of the earth s crust along the east-western shear zone and exploded below the Archean fundus rock. The felstone vein and the hypo-volcanic crytoexplosion Breccia rock are from the same magma source, and are formed in the different evolution stages.

香炉碗子金矿区分布的次火山隐爆角砾岩体是由花岗质岩浆沿东西向脆～韧性剪切带上升到地壳浅部隐爆太古代基底岩石所形成，霏细岩脉与次火山隐爆角砾岩来自同一岩浆源，为同一岩浆活动不同演化阶段所形成的。

The emergence and development of shear bands were simulated numerically by PFC3D under different confining pressures. It was shown that the microscopic parameters of granular materials affected markedly the macroscopic response of the noncohesive frictional material.

通过进一步分析颗粒细观结构参数变化对组成材料的宏观力学的影响及其剪切位移场的形成和发展规律，结果表明颗粒介质之间的摩擦系数、颗粒组成材料的孔隙率对材料的宏观力学行为有比较明显的影响。

The shredding of agro-residues, such as corn stalk, straw, wood sawdust and other herbaceous biomass, were investigated in this dissertation. According to the machinery mechanics of shredding, the components, shearing strength and pressive strength of the biomass were analysed in theory, which played a critical role during the shredding process. And the powder was examined by Scanning Electron Microscopy. It was founded that shearing,splitting and grinding force were appropriate for shredding biomass. The results also showed that primary shredding was the bulk shredding model, which was mainly affected by shearing and splitting force, therefore the curly knife and the straight knife were useful; while the fine shredding was the surface shredding model, affected by splitting and grinding force, and the straight knife useful.

本文以农林废弃生物质为研究对象，结合机械力破碎基础理论，从影响其破碎的化学组分和剪切强度、抗压强度等力学角度进行了理论研究，并运用扫描显微镜对破碎产物的微观结构进行了实际分析，结合二者得出如下结论：最适合生物质的施力方式为剪切力、劈碎力和磨削力；生物质粗破碎为体积破碎，主要受剪切力和劈碎力作用，刀片宜设计成弯口刀和单面直刃刀；细破碎为表面破碎，主要受剪切力和磨削力作用，刀片宜设计成双面直刃刀。

The calculation results shows that ,(1) when the rotor rotates at the working speed, a local regurgitant whirlpool that is rightabout to the rotor"s rotating direction appears in the classifying region, which makes the separated granules come back to the outside of the classification district and influences the classification efficiency of the turbine classifier;(2) in the condition of a low rotating speed of turbo rotor, ultrafine particles can follow the gas phase by and large, but when the rotating speed increases, a phenomenon of velocity slippage between two phases appears evidently;(3) A operating parameter, air flow rate is so important that can directly influence the stability of flow field in classifying chamber, the bigger the air flowrate is , the steadier the flow field is;(4) Compared with straight blades, the new shape of blades with backward crooked elbow are helpful to improve the stability of flow field and form whole stream easily, also beneficial to advance the classification accuracy and classification efficiency;(5) The motion trace of particles are very complicated when the turbo rotor rotates at a high speed, the constant bounce of the particles appear between the blades and the coarse particles are even bounce back from the inlet, only the finer can pass through the classification area from the oulet;(6) Along with the increase of the rotor"s rotating speed, radiah axial and tangential velocity all begain to fluctuate repetitively like sine-wave, the smaller the particles are, the more violently they fluctuates.

数值模拟结果表明，(1)在涡轮达到工作转速时，在分级区域形成了一个与涡轮旋转方向相反的局部回流涡，它使得分离出来的细粒重又被带回分级轮外边缘，从而严重影响分级机的分级效率；(2)粉尘粒子在涡轮低速运动情况下，基本上能跟随气体运动，但随着转速加大，两相之间出现了明显的速度滑移现象；(3)分级机工作时的风量也是一个比较重要的操作参数，它可以直接影响到分级机内腔流场的稳定性，风量越大，流场越稳定；(4)同直叶片形状相比较，带后弯导板的叶片，有利于改善流场的稳定性，流场容易形成整体流，对提高分级效率和分级精度都非常有利；(5)粒子轨迹线在涡轮转速较高时十分复杂，有的出现了反复的弹跳现象，大颗粒不能通过分级区域而从进口返流了，只有细小的颗粒才从出口处流出；(6)涡轮转速加大时，粒子的径向、轴向和切向速率出现了明显的类似于正弦波的脉动现象，颗粒越小，脉动程度越为剧烈。

Pharmacological effect might well change obviously when themedicinal material size is decreased to micro- or nano-size. For those plant herbs, it isdifficult to be ground to nanosize through conventional grinding method; while highspeed centrifugal sheering technology can be used to grind plant herbs tonanosize within a short time.

对于植物根茎类中药，很难采用普通的粉碎方法将其粉碎至微米或纳米级，而高速离心剪切式(High speed centrifugal sheering，简称HSCS)超细粉碎技术是新近发展起来的一种制备纳米粒子的技术，可以将植物根茎类药材粉碎至纳米级别。

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。