查询词典 arbitrary element

When you stretch out your arm, you feel some stiffness there. It is the air element in support. Similarly, when you rest your head on an air pillow, it stays up, because the air element in the pillow is supporting your head.

同样，当你以身体或头压住充满气的枕头或床垫，你的身体或头将不会跌下，这是因为枕头或床垫里的风大支持着你。

Be in brief reviewing after the concept of the bag outside IT, driving force and lifecycle, gave out the risk management frame of the bag outside IT, element of risk of the bag outside putting forward an IT that is based on lifecycle next analyses frame, emphasize the main risk element that activity of the bag outside analysing IT may encounter in whole lifecycle.

在简要回顾信息技术外包的概念、驱动力和生命周期后，给出了信息技术外包的风险治理框架，然后提出了一个基于生命周期的信息技术外包风险因素分析框架，并着重分析了信息技术外包活动整个生命周期中可能碰到的主要风险因素。

Establish the modified functional of the analysis of the beam element and plate element, base on the generalized variational principle and penalty function method.

同时指出了选择合理的坐标原点以便充分发挥覆盖位移函数的全阶项对总平衡方程组成时刚度矩阵和荷载矩阵的贡献，使求解精度得到提高。

In this paper, design is first conducted for the bed of a CNC lathe and Pro/ENGINEER is employed for modeling, then Pro/MECHANICA is used for finite element analysis. It is shown by the result that measures like finite element analysis can be employed for optimization design, thereby avoiding the inherent structural defects and disadvantages.

本文首先对某数控机床的床身进行设计并利用Pro/ENGINEER建模，然后运用Pro/MECHANICA对其进行有限元分析，结果表明：有限元分析等手段可以进行最优化的设计，避免结构存在先天上的缺陷和不足。

Co-firing characteristics of corn stalk and stone coal in different proportion were investigated by thermal gravimetric analysis. The results showed that corn stalk can improve the ignition and combustion of stone coal. The agglomeration experiments on corn stalk were made in a bench-scale bubbling fluidized bed with quartz sand as bed material and stone coal ash as additive. The results indicate that stone coal ash can inhibit agglomeration of bed material particles at temperature of 900℃. Agglomerate of blends was analyzed by means of scanning electron microscopy, energy-dispersive X-ray, and the bed materials were analyzed by means of X-ray fluorescence. Analysis showed that aluminum element and iron element in stone coal ash can react with alkali compounds and eutectics with low melting point, form a covering layer with high melting point on the surface of biomass and quart sand particles, thus inhibit the forming and transfer of low melting compounds.

以玉米秸秆与石煤按不同比例组成的混合物为研究对象，在TG-DTG热分析仪上进行了燃烧特性分析，结果表明玉米秸秆有利于石煤的着火和稳定燃烧，对石煤有一定的助燃作用；在小型鼓泡流化床实验装置上，以石英砂为床料、石煤灰为添加剂，进行了玉米秸秆成型燃料流化床燃烧的床料黏结实验，结果表明：石煤灰能够在生物质流态化燃烧过程中有效地抑制流化床床料黏结现象的发生；通过对实验中形成的结团进行扫描电子显微镜X射线能谱(scanning electron microscopy/Energy-dispersive X-ray- SEM/EDX)，对床料进行X射线荧光光谱(X-ray fluorescence，XRF)分析，结果表明石煤灰中的Al和Fe能够与生物质灰中的碱金属化合物以及低熔点共熔物发生化学反应生成高熔点物质，并且覆盖在生物质碳颗粒与石英砂颗粒表面形成隔绝层，从而阻止低熔点物质的生成与迁移。

It further proves the distinct element method simulation model of charging of bell-less top blast furnace is true, and indicates this mathematics model not only has great theory research significance, but also have full practical worth. The distinct element method simulation model of charging of bell-less top blast furnace is a computer model.

本文还对实际无钟炉顶高炉开炉布料进行了离散单元法模拟研究，模拟结果与实测结果也基本符合，这进一步证明了高炉无钟炉顶布料离散单元法模拟模型的正确性，并且表明此数学模型不仅具有理论研究意义，而且具有实用价值。

It indicates the distinct element method simulation model of charging of bell-less top blast furnace may replace the model experiment that takes very long time, and spends a great amount of both manpower and material resources to research the law of charging of bell-less top. The distinct element method simulation is made for opening furnace charging of reality bell-less top blast furnace. The result of simulation is also very identical with that of measuring.

本文在高炉无钟炉顶实验模型上进行了单环和多环布料实验研究，同时运用离散单元法模拟模型对实验进行了数值模拟，得到的炉料分布和料面形状的实验结果与模拟结果相当吻合，这证明了离散单元法在高炉无钟炉顶布料中的应用是可行的，并且表明运用高炉无钟炉顶布料离散单元法模拟模型可以替代费时、费钱、费力的物理模型实验，进行无钟炉顶布料规律研究。

It effectively solves the problem of contact mechanics between burden granules. The dynamic data structure that is a linked list is built to save and delete the varying data in simulation calculation process. Therefore, the distinct element method simulation model of charging bell-less top blast furnace is established in view of the distinct element method model of blast furnace burden granular.

本文首先对离散单元法的基本原理和数值计算方法进行了系统研究，针对高炉炉料颗粒介质特点，对离散单元法进行了相应改进，建立了高炉炉料颗粒运动的离散单元法基本数学模型，推导出了相应的高炉炉料颗粒离散单元法数值计算基本参数的计算公式，例如阻尼、刚度、时步等，并确定了合理的数值模拟参数值。

In this dissertation, first, based on theory of cutting tooth about the gleason spiral bevel gear, the equation of meshing in the process of cutting tooth, the surface equation of generating gear as well as the general tooth surface equation of the double circular arc spiral bevel gear, using GB12759-1991 type of double circular arc gear as a basic gear profile, a three-dimension solid model of double circular arc spiral bevel gear which has the good adaptability was carried out by used of Unigraphics software;Second, by researching of the algorithm about contact and collision as well as various contact types based upon Contacting Finite Element Method, a foundation was laid for selecting the contact type in analyzing contact stress of double circular arc spiral bevel gearing;Finally, through the connection port of PARASOLID between UG software and ANSYS/LS-DYNA software, the three-dimension solid model of double circular arc spiral bevel gearing obtained above in UG was imported into ANSYS/LS-DYNA, a finite element analyzing about contact stress of double circular arc spiral bevel gearing was carried out by applying new loading method.

本文首先基于格利森弧齿锥齿轮加工原理及切齿啮合过程中的啮合方程、产形轮齿面方程以及双圆弧弧齿锥齿轮的齿面方程，选用GB12759-1991型双圆弧齿轮基本齿廓为基准齿形，利用Unigraphics软件的建模功能，绘制了有较好适应性的双圆弧弧齿锥齿轮传动三维实体模型。其次，描述了应用有限单元法进行实体接触与碰撞问题算法的公式，研究了有限元分析中的各种接触类型以及双圆弧弧齿锥齿轮接触应力分析中所选择接触类型的依据。最后，通过UG软件和ANSYS/LS-DYNA之间的PARASOLID接口工具包，将UG软件中得到的啮合齿轮模型导入ANSYS/LS-DYNA有限元分析软件，给出一种新的加载方法，进行了双圆弧弧齿锥齿轮传动的接触应力的有限元分析。

According to the test, the distribution of steel tube strain in course of shear bond failure is analyzed in detail.The finite element analysis model of the shear bond at the interface of CFST was also built up. Steel tubes, concrete and the interface between steel and concrete were modeled by Shell, 3D Entity and Contact element, respectively.

此外，本文还对其中2根圆钢管混凝土试件和2根方钢管混凝土试件的钢管外表面进行了应变追踪测试，研究了钢管混凝土在抗剪粘结破坏过程中钢管外表面应变分布规律。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。