结构单元

The results show that the infinite method is valid in solving problems in infinite domain and thus high precision can be obtained by eliminating the border effect in finite element analysis.

采用具有精确解的无限厚壁圆筒作有限单元法分析和无限单元法分析，通过对这两种分析方法的分析结果的比较得知：无限单元法是解决无限域问题的一种有效的方法，采用这种分析方法进行隧道及地下工程结构分析，可以消除有限单元法所带来的边界效应，从而使计算精度大为提高。

Based on the shell element degraded from the continuous body, concrete and configured steels are modeled by the layered shell element, and the vertical steels burdened with added loads are completed by the combined shell element. Then, with the smeared crack model, associated flow rule and Madrid hardening model, the material nonlinearity of the concrete is depicted. The stiffness matrix of nonlinear thin-walled shell element is deduced. As for RC multi-T girders subjected to transverse loads, the properties, such as crack expanding and steel yielding, are studied.

基于实体退化壳单元理论，采用分层单元模拟了混凝土和构造钢筋，采用组合单元模拟了受力纵筋；并利用弥散裂缝模型、关联流动法则和Madrid强化准则等来描述了混凝土的材料非线性，推导了非线性薄壁壳单元的统一单元模式，研究了横向荷载作用下RC多T梁上部结构的裂缝发展和钢筋屈服等性能。

By the method of transforming the node DOF of the space bar element to the node DOF of the space virtual laminated element ,that is,the node of bar element need not fixed on the node of space solid element,the prestressed concrete structure were simulated together.

通过自由度变换，把空间杆单元的节点自由度用空间虚拟层合单元的节点自由度来表示，即杆单元的节点无需固定在体单元节点上，共同模拟了预应力混凝土结构。

With an example, the paper uses finite element program ANSYS to establish three calculating model of the steel-concrete composite open-web floor: the combination finite element method of spatial beam elements and shell elements, the finite element method of shell elements and the combination finite element method of shell elements and entity element.

结合一算例，利用ANSYS有限元软件，建立了组合空腹楼盖的三种计算模型：空间梁单元与壳单元的混合元模型、空间壳单元模型、壳单元和块体单元模型三种理论计算方法，对这三种计算模型作分析对比，得到了静荷载作用下该类结构的内力分布规律及其他一些有价值的结论。

The first group could include: ATC structure determination, fixing the dates and procedures with respect to ATC creation, solution of principal control and management related issues; endorsement of subordination and the order of all-arms forces interaction; determination of the tasks to be given to combined troops, their units and divisions (fighter, search and detecting, attack and assault, blockade), as well as to the interacting groups involving Interior Ministry troops, combat units within the Frontier Service of the FSB and area defense units.

第一个组织的工作可以包括：确定反恐怖中心的结构，确定与建立反恐怖中心相关的日期和程序，制定控制与管理相互问题的解决方案；确定下属部队以及与所有武装力量的交互；确定合成部队、分队与单元（战斗单元、侦察与探测单元、进攻单元、阻击单元）的任务，以及与武警部队、边防部队、区域防御部队进行交互的任务。

Plate cone reticulated shells are a new type of space structures.

引 言板锥网壳结构是一种半连续化、半格构化的新型空间结构，它是由板片组成锥体单元，按空间网壳结构的曲面形状，将锥体单元通过底边拼接成整体，各锥顶再用杆件有规律地相互连接，以形成板锥网壳结构体系。

The methods of discretization is used in the vertical direction to the silo structure ,thus establish cylindrical shell unit, cone shell unit , plate unit , foundation unit, and its semi-analytic displacement function A compute program compiled is used to calculate the static displacement and free vibratioa

本文对筒仓结构进行整体离散，构造了各种单元半解析的位移函数，建立环壳单元、锥壳单元、板单元、地基单元。并编制了程序，计算了各结线的静位移及其自由振动的频率和振型。

This pole plate in this invention consists of he two piece or much more than two piece of the collection dust grid plate that everyone is in parallel, the alternation of the corona wire is between the two adjacent collection dust grid plate, the anode and the cathode of the high voltage generator connect respectively with the corona wire and the pole plate, the inner frame and the outer frame in this invention are oblong, the collection dust cell in this invention fits in the air inlet of the interior one of the air condition, it is fitted in the air inlet of the air condition engine used the fastening piece, the pole plate in this invention is make up of the conductive plastics.

一种微尘处理器，具有高压发生器及集尘单元两部分构成，其中集尘单元为线板式放电结构，其特征是：所述集尘单元主要部件有电晕线、极板和固定电晕线的外边框和固定极板的内边框，所述极板由两条或两条以上相互平行的集尘栅板构成，电晕线间隔位于相邻的两块集尘栅板之间，高压发生器的正、负两极分别与电晕线和极板相连接，所述内边框和外边框为长方形，所述的集尘单元安装在空调机室内单元的进风口处，用紧固件固定在空调机进风口上，所述的极板采用导电塑料制成。

The relation between periodic unit amounts and transmission properties of PDGS is given in the paper.

通过分析得出了PDGS结构的周期单元数与其传输特性之间的变化规律；NPDGS和PDGS相比，由于周期单元数和底面结构发生了很大的变化，从而导致其传输特性的表现形式相比于PDGS也产生了极大的差异，这样便能为新型DGS结构的分析和设计提供有力的指导。

The boundary of analytical model and statistical model is clearly divided in this performance model, and evaluation accuracy is improved. Secondly, based on embedded SRAM performance hybrid model, this article adopts bionics algorithm-ant algorithm to optimize hierarchical embedded SRAM structure. This method which adjusts memory system structure improves memory system performance. Finally, considering the factors such as memory cell area, power, delay and reliability, this article establishes static 6-T memory cell area, power, delay and static noise margin equations, analyzes 6-T memory cell device dimension constraints under "read upset" and "write upset", then proposes a method to enhance embedded SRAM performance by optimizing 6-T memory cell size. In order to realize embedded SRAM design and verify proposed optimization methods, this article takes the Garfield202 system chip as the platform, which embeds A720T processor and 20KB Scratch-Pad memory.

首先针对嵌入式SRAM结构，采用多元线性回归方法分析SRAM宏单元性能指标，采用解析方法分析控制电路延时，结合以上这两种方法建立嵌入式SRAM性能混合模型，该模型清晰划分两种建模方法的各自适用范围，提高了模型精度；其次以该混合模型为基础建立存储体性能目标函数，采用仿生优化算法—蚂蚁算法优化嵌入式SRAM结构，使之达到最优设计；最后综合考虑面积、功耗、速度以及可靠性等因素，建立静态6-T存储单元面积、功耗、延时以及静态噪声容限方程，分析了&读破坏&和&写破坏&的晶体管尺寸约束，优化了6-T存储单元尺寸，提高了嵌入式SRAM性能。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。