结构体

According to the need of the subject"Study on Saving Energy in House Buildings with Concrete Blocks"conveyed by Science and Technology Committee of Liaoning Province and the feasibility of constructing high-rise block buildings in the area of eight of earthquake intensity, an experimental study on the mechanical properties of the high-strength masonry panels with concrete small-size hollow blocks has been finished, and both the dynamic characteristics and the seismic behaviors of elastic and plastic state of long cantilever reinforced block shear walls have been analyzed by finite element method in this paper.

中文题名高强混凝土砌块砌体基本力学性能的试验研究及其动力分析副题名外文题名 Experimental study on mechanical properties of masonry walls with high-strength small-size concrete hollow blocks and dynamic analysis 论文作者祝英杰导师刘之洋教授学科专业结构工程研究领域\研究方向学位级别博士学位授予单位东北大学学位授予日期2001 论文页码总数158页关键词混凝土结构砌块砌体剪力墙空心砌块配筋砌块馆藏号BSLW /2003 /TU375 /1 根据辽宁省科委项目"混凝土承重砌块节能住宅体系研究"的要求以及在八度抗震设防地区建高层砌块建筑的可行性，本文对高强混凝土小型砌块砌体的力学性能进行了试验研究；利用有限元法对长悬臂配筋砌块剪力墙的动力特性和弹塑性地震反应进行了分析。

The kidney is composed of renal corpuscle , neck segment , proximal tubule, middle segment, distal tubule and collecting tubule.

肾脏由肾小体、颈段、近曲小管、中间段、远曲小管和收集管6部分构成，肾小体由肾小球和肾小囊组成，在肾小体附近可见致密斑样结构，未见髓袢结构。

On the basis of Raman and FTIR spectra research on melt structure and water solubility mechanism in albite glasses, we can make the following conclusions:(1) Higher pressure (1bar-2. 0GPa) can lead to below frequency region (50-650cm〓) shift to higher frequency and become narrower, and result in high frequency region (850-1300cm〓) move to lower wave number and become narrower at the same time. These are consistent with the decrease of average T-O-T angle and distribution scope of bond angles (0). In addition, the intensity of 580cm〓 band decrease with increase of pressure and the changes are obvious while pressure is in the range of 0.8-1. 0GPa. And these result from the"collapse"of the planar three membered -containing rings within the glass structure.

通过对高温高压下钠长石熔体结构及水在钠长石熔体中溶解机制的Raman和FTIR光谱实验研究，可以得出以下结论：(1)随着压力升高(1bar-2.0GPa)NaAlSi〓O〓熔体玻璃Raman光谱的低频区(50-650cm〓)不断变窄并向高频方向移动，同时高频区(850-1300cm〓)不断变窄且向低频区方向移动，这表明随着压力升高T-O-T键角不断减小，并且分布范围变窄，T-O-T键角这种变化从而可使T-O键的力常数减小，导致键强减弱；另外，580cm〓谱峰强度随着压力升高不断减弱，并在0.8-1.0GPa时最为显著，这是由于在0.8-1.0GPa时包含的平面三元环结构的"垮塌"造成的。

The misdivision ofunivalents that resulted in the formation of telocentrics,iso-chromosomes and translocated chromosomes was the mainvariation pattern of chromosome structure.

单价体错分裂导致端体，等臂染色体和易位染色体的形成，是染色体结构变异的主要方式，离体培养诱发染色体缺失，是染色体结构变异的有效补充手段，从而成为有目的，有计划的向小麦导入外源有用基因的有效途径。

For the first time, we propose the novel Wrapped-Select Gate SONOS memory with split-control gate in NAND architecture. The memory process is not only simple but also compatible with embedded non-volatile memory in conventional standard logic CMOS products. In this thesis, we demonstrate the physical mechanism and elimination of 2nd bit effect in 2 bit/cell operation.

我们提出一种新颖的分离式闸极结构於含有隐藏式选择性闸极之半导体─氧化层─氮化矽─氧化层─半导体记忆体元件於NAND电路阵列结构上，此记忆体元件不仅制程简单也能符合一般数位逻辑CMOS产品中的嵌入式非挥发性记忆体应用。

Therefore, CRP could mediate E-LDL participating in the early stage of atherogenesis. CRP is an ancient conserved protein whose initial role as a pattern recognition molecule may have been to defend against bacterial infections, but whose present biological role appears quite complex. CRP is protective against a variety of bacterial infections and inflammatory stimuli as an opsonin. It is likely that the activity of CRP in humans is either pro- or anti-inflammatory is dependent on the context in which it is acting.

由于CRP的识别相可以结合被暴露出磷酸胆碱结构的E-LDL，形成E-LDL／CRP复合体，而内皮细胞表面能以高亲和力识别CRP的配体相，从而CRP-相性结构具有结合E-LDL，被内皮细胞捕获，引起脂质沉积和激活补体、触发炎症反应的可能性，这样可以解释早期动脉粥样硬化为何同时存在E-LDL、CRP、补体，而这三种物质在同时、同地出现绝非一个巧合。

The design of the platform is based on Multi-Agent system theory and our lab's research project -- PAMR (Pedrail Autonomous Mobile Robot).

本文首先介绍了智能体及多智能体机器人系统的概念，研究了其系统结构，提出多层次智能体树结构模型；然后根据该模型，结合嵌入式实时系统和履带式自主移动机器人的分布式硬件系统的特点，研究设计了机器人软件系统支撑平台。

Two polysiloxanes (SR2 and P67) and one polycarbosilane were chosen as preceramic polymers. TG-DTA-MS, FT-IR, XRD,〓Si MAS-NMR, SEM, TEM, SAD, HREM, chemical analysis and density measurement techniques were used to study the cross-linking and pyrolysis mechanisms of the preceramic polymers. The development of chemical composition and structure, density, phase composition and microstructure of the solid pyrolyzed products during pyrolysis process were systematically investigated. While pyrolysis temperature approached 1000℃, ceramization process of the preceramic polymers almost completed, and ceramic yield of the preceramic polymers hardly changed any more.

选取了两种聚硅氧烷（SR2和P67）和一种聚碳硅烷作为聚合物先驱体，利用TG-DTA-MS、FT-IR、XRD、〓SiMAS-NMR、SEM、TEM、SAD、HREM以及化学成分分析、密度测量等手段，研究了聚合物先驱体的固化机理；以N〓为热解气氛，系统地考察了各种聚合物先驱体在热解过程中，其热解产物的化学成分和结构、密度、相组成及显微结构的演变规律。

The results indicate that under the action of novel phosphoaluminate cement, the symmetry and stability of hydration resultants of SC-paste-acted are higher than that unacted, therefore, the former might be more durable.

IR分析表明，复合水泥浆体水化产物相晶体结构的对称性较SC的高，由此可推测其稳定性增强，浆体耐久性好。SEM表明，水化浆体中的C-S-H凝胶交织成网络状，结构致密。

By the establishment of the related computer program,the various improvement to the traditional method is made,and the method of vector algebra is applied to calculate the safety factor of block model.The automatic implementation of the stability analysis and evaluation of weage rock mass are acchieved by the program.

传统的做法是在野外结构面测量的基础上，通过手工赤平投影的方法，确定各结构面的交线产状，由此确定滑面的大小及楔形体上的作用力[3]；最后在明确了楔形体大小和受力的基础上，用极限平衡理论计算楔形体的稳定性[4]。

Even if he can, he underwent surgery and contrasts what can rest, half of the brain?

即使他能经历手术而苟延残喘，他还能剩下什么，半个大脑？

Past study re-sults had indicated that MMC in the apomictic type could at most develop to te-trad stage.We observed that the sexual embryo sac of"Pingyi Tiancha"coulddevelop into 4-nuclei embry sac.

前人只观察到无融合生殖类型的大孢子母细胞至多能发育到四分体时期，而我们观察到平邑甜茶的有性胚囊能发育到四核胚囊。