查询词典 displacement can
- 与 displacement can 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Experimental results show that this sort of electrostriction appliance can perform well as regards driving force and beeline displacement, and furthermore, its self-weight is smaller.
研究表明,这种电致伸缩器能获得较好的驱动力和较大的直线位移且自重较小,是一种具有较高应用价值的直线驱动器,尤其适用于生物器件的驱动。
-
A new electrostriction material strain measure method using optical lever has been proposed.Short arm senses micro strain at contact point,with the help of optical lever micro strain has been magnified to form a facula.The CCD camera samples the positions of facula and the micro displacement of contact point can be obtained.
提出利用光学杠杆测量电致伸缩材料性能的新方法,通过触点短臂传感微形变,并通过光学杠杆将微形变放大后形成光斑,利用CCD摄像头采集放大前后的光斑,通过对光斑图像进一步的处理可以得到微位移量,从而实现电致伸缩材料应变测量。
-
Dynamic cutting force is a basic parameter and it directly influences relative displacement between tool and workpiece, tool wear and surface quality in turning operation. Therefore, simulation model of dynamic cutting force is an important part of machining physical simulation research. Cutting force models commonly used are empiristic equations. These equations are often based on statistical analysis of machining data, obtained via changing one or more machining parameters, whilst fixing others. But a complete turning process and nature of force can not be accurately described by means of these models.
动态切削力是切削加工过程中的基本参数,其动态变化直接影响加工过程中刀具与工件的相对位移、刀具磨损和表面加工质量等,因此动态切削力的预测仿真建模是切削过程物理仿真研究的基础,但是目前大多使用经验公式描述动态切削力,这些经验公式多少存在一些不足,难以完全真实地反映在整个切削过程中力的变化历程和变化特点。
-
This microscale simulation can be used to understand the kinematic mechanism of displacement and dispersion process.
根据渗滤网络上的蒙特卡洛模拟,对于一些重要的流动过程我们得到了一些本构方程和重要的幂律关系。
-
From Maxwell's equations, with material constitutive relation of optically active crystal and boundary conditions of electric field on the boundary between isotropic media and crystal, through coordinate transformation, the formula of the direction of refracted wave for arbitrary direction incident monochromic plane wave was derived. Furthermore, based on the unit vector of direction of refracted wave, eigen waves of electric field, electric displacement vectors and direction of energy flow can be easily obtained.
从麦克斯韦方程组出发,结合旋光晶体的物质方程以及单色平面波从各向同性介质入射到晶体界面时电场的连续性边界条件,通过晶体主轴坐标系和界面坐标系的坐标变换,推导了任意入射方向的单色平面波在晶体界面上的折射方向的求解公式,进而利用所得的折射方向求解晶体中折射波的电场本征模、电位移矢量本征模和光线方向。
-
When the fault throw is relatively small, the shale gouge ratio and clay smear potential are relatively large and shale smear is strong. In addition, the coal layers on both sides of the fault are mainly juxtaposed against shale. Therefore, shale smear and juxtaposition play a key role in the sealing. In contrast, when the fault throw is relatively large and shale smear is relatively weak, juxtaposition is unfavorable for sealing. However, the mylonite resulted from strong cataclasis can act as a seal of the coals. The cementation resulted from underground water activity is of great significance to the sealing ability of the fault. Mylonitic coal layers resulted from faulting occur on both sides of the fault. They are unique reservoirs with low permeability and high displacement pressure and their scales depend, to some extent, on the fault throw, fault properties, the hanging wall and footwall.
结果表明:①当断层落差较小时,断层泥比率和泥岩涂抹潜势值较大,泥岩涂抹效应强烈,且与断层两侧煤层对接的岩石主要为泥岩类,此时起封闭作用的主要为泥岩涂抹作用和断层两侧岩性配置关系;②当断层落差较大,泥岩涂抹作用较弱时,对接越不利于封闭形成,但碎裂作用强烈,沿断层两侧形成的糜棱岩对煤层起到了封闭作用;③地下水活动导致的胶结作用对整个断层的封闭具有重要的意义;④断裂作用形成的糜棱煤沿断层两侧分布,此糜棱煤带是一种低渗透、高排替压力的特殊储层,其规模与断层的落差、性质、上下盘都有一定关系。
-
Moreover, the actual allele frequency of most varieties deviates far from Hardy-Weinberg equilibrium. All PPB、na 、I、h、Gi and Fst have proved to be the references to elucidate that ISSR is a most powerful tool to analyze genetic diversity, compared with the RAPD marker and the allozyme marker is less strong ordinally. We could divided the 70 samples into A, B, C, D and E five groups using three methods according to genetic distance clustering. There is a bit displacement for few varieties in different clustering maps, but the most are similar to morphological analysis despite that there is still a great difference among cultivars in the same one group. The above results imply that the three methods have the different sensitivity and resolution in genetic distance analysis of close varieties. The Mantel test indicates that the results from the three kinds of markers have the significant correlation, which demonstrates that the number of the used three kinds of markers is enough to exactly detect the diversity of all 70 samples to ideal extent. And these methods can be used to evaluate the diversity of the whole group using the miscellaneous samples instead of the individual sample, of the Gerbera jamesonii are mainly from tissue culture plants. In conclusion, the above study results provide a reference for the application of three kinds of molecular markers to molecular marker-assisted breeding of flower. 2. The genetic diversity among the eight introduced cut-flower varieties of Ranunculus asiatica was analyzed by the ISSR markers. Based on the genetic clustering tree, all the colorful flower varieties are clustered into one group, and the white flower varieties into another group. Moreover, among the former group the yellow flower varieties are clustered into one sub-group, and the reddish flower varieties, such as rose color, pink, nacarat, are clusetered into another sub-group.
由三种分子标记的分析结果可以看出,等位基因平均值、观察杂合度、Fis值、Fit值皆较高,表明非洲菊等位基因较丰富,杂合基因偏多,且绝大部份品种的实际等位基因频率在品种内偏离了Hardy-Weinberg equilibrium;PP8、na、Ⅰ、h、Gi及Fst皆表明,ISSR检测遗传多样性的能力最强,其次是RAPD,等位酶最低;根据遗传距离进行聚类,三种方法都把70个品种分成A、B、C、D、E五个大组,每一组中除少数品种发生位移外,大部份品种分类结果相似,且与形态分析结果有相似性,但在每一组中,品种间的聚类差别较大,表明这三种方法在近距离品种间检测遗传变异时灵敏度及分辨力不同;Mantel检测表明,三种标记的分析结果有显著相关性,表明所用的三种分子方法的标记数量已经可以相对无偏地检测到70个品种间遗传变异;非洲菊为组培苗,三种标记的检测结果皆表明,混合样品可以作为个体样品的代表,对整个居群的遗传多样性进行评价;这些研究结果可为三种分子标记方法在花卉分子辅助育种中的进一步应用提供借鉴。
-
Using Huber function, the method can alleviate the oversmooth problem at the "motion edge". To get the displacement field, the conjugated gradient method is used to minimize the energy function.
该算法采用共轭梯度法优化能量方程,并利用小波分解进行分级计算,能快速可靠地得到稳定的位移场。
-
The story drift can be represented by the drift of a typical beam/column sub-assemblage. Introducing the plastic deformation distribution factor x as a parameter, the relations among x, displacement ductility ratio μ〓 and column overstrength factorη〓, i. e. the x-μ〓-η〓 equations are presented.
提出用框架节的侧移要求来等效框架的层间位移要求,引入塑性变形分布因子x的概念,建立了x与位移延性系数μ〓、强柱系数η〓之间的关系,即x-μ〓-η〓关系。
-
A set of quadruply coupled equations (fluid flow, convection-diffusion, energy conservation and mechanical equilibrium) with a number of cross-couplings and coupled constitutive relations is formulated to quantify the multi-physics of oil displacement by CO2 injection, implemented into and solved by using FEMLAB. FEMLAB is the first engineering tool that performs equation-based multi-physics modeling in an interactive environment. With FEMLAB, the coupled multi-physics model can be solved simultaneously. The applicability of this model has been demonstrated through an example of simulations for a two-dimensional reservoir of size 1000 m×1000 m with one injection and one production wells. Model results illustrate the significant importance of the cross-couplings between individual (thermal, hydrological, chemical and mechanical) physics.
首先,建立一套流、固、热、多相流等多场全耦合控制方程组及其相应的耦合本构关系;然后,采用FEMLAB为工具来模拟三次采油阶段CO2驱油过程中的流、固、热、物质守恒等多场之间的全耦合作用,是第一个人机交互式的基于偏微分方程组的多物理场耦合分析的工程工具,利用FEMLAB,该4个耦合方程组成的方程组可以一次同时被求解出来:最后,应用该模型来求解一个二维油田的驱油情况,数值计算结果表明,原位应力、注入温度、注入压力等因素对CO2的地下贮存效率、驱油速度等有重要影响。
- 推荐网络例句
-
As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.
每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。
-
Maybe they'll disappear into a pothole.
也许他们将在壶穴里消失
-
But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.
但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。