性能

The results of Raman, SEM and EPMA tests show that the microstructure defects of the chalcogenide glasses play an important part in their second-order nonlinear optical properties. The glasses show large SNOP because of Sb2S3 microcrystal or the mental antimony in the glasses even before they were polarized. After the electrical/thermal polarized, GeSbS glasses show larger SNOP with the increase and growth of the microcrystal. The glasses show larger SNOP because of the existence of Sb2S3 microcrystal or the mental antimony in the glasses.

通过研究玻璃的拉曼光谱、扫描电镜和电子探针显微分析后发现，硫系玻璃内部的微结构缺陷对其二阶非线性光学性能有显著影响，玻璃体系内存在的Sb2S3微晶或金属锑颗粒能使硫系玻璃在未经极化处理前就具有较大的二阶非线性光学性能；经电场温度场极化处理后，随着微晶的增多和进一步长大，导致GeSbS玻璃具有更高的非线性光学性能；由于Sb2S3微晶或金属锑的存在，导致玻璃具有较高的二阶非线性光学性能。

The paper provides realizing means of sonification on CAD,concludes that CAD data type is suitable for sonification,and analyzes corresponding design of data mapping calculation.

1概述CAD的图形界面给工程师提供一个洞察产品结构和性能的有效途径，使得虚拟产品的性能得以体现，工程师不仅看到产品的外形，还要了解产品的物理性能、设计和制造工艺合理性，虚拟产品的性能需要有仿真数值计算来支撑，而数值模拟产生了大量复杂的数据，为了显示这些数据，经常需要

The results showed that,when environment-friendly oil KT20 was used in NR and NR/BR compound,the properties of mix,physical properties and wet skid resistance of vulcanizate were similar to those by using the comparison samples;by using environment-friendly oil KT20,the rolling resistance of vulcanizate changed slightly compared with using 3527MES and TADE.

结果表明，在NR和NR/BR胶料中，填充环保油KT20与对比油的混炼胶性能、硫化胶的物理性能和抗湿滑性能相当；填充环保油KT20，3527MES和TDAE硫化胶的滚动阻力相差不大。在NR胶料中填充环保油KT20，硫化胶的耐磨性能优于对比油硫化胶。

Joint behavior of beam and column is the key of entire structure.This paper uses finite elemnt analyzing software ANSYS to analyze the bearing mechanics of joint under monotonic load and periodic load,and gets load-displacement curves,viscosity curves and frame curves.The paper mainly analyzes how axis-push ratio,gradation of concrete,plate layout and steel type to affect tensibility performance and viscosity feature of joint.The results indicate that concrete-filled squar tube column has good tensibility performance and dissipative ability.

梁柱节点的性能是影响结构整体性能的关键，而目前对方钢管混凝土柱—钢梁节点抗震性能的研究工作尚不完善，本文通过有限元软件ANSYS来分析方钢管混凝土柱—钢梁节点，研究节点区在单调荷载和低周反复荷载作用下的受力机理，得节点区的荷载位移曲线、滞回曲线及骨架线；着重分析方钢管混凝土柱的轴压比、混凝土等级，隔板形式和钢材型号在低周反复荷载作用下对节点延性和耗能等抗震性能指标的影响。

The paper study the effect of silicon AlSi9Cu3 on the mechanical properties and the machinbality of its diecasting thring mechnical property tests and drilling experiments aiming at acpuiring enough data to direct the materials desigin.

本文从材料的设计角度出发，通过力学性能实验和钻削性能实验，研究了硅含量对AlSi9Cu3合金力学性能和加工性能的影响。

Due to the complexity of the cell jitter, the NonSynchronous Tining Recovery methods are currently not mature With the emphasis being given to the Class A CBR traffic, this paper analyzes the performance of the queueing delay and cell jitter at the source node and intermediate nodes, and discusses the Source Timing Recovery at the destination node in ATM networks Firstly, this paper presents a description of the cell jitter of CBR traffic, and gives the definitions of two kinds of cell jitter regarding the Source Timing Recovery for CBR traffic Then, by using exact mathematical models and analysis methods, this paper analyzes the impact of the factors, such as the capacity of the queueing buffer, the randomness, the deterministic nature and the correlation in cell arrivals of the background traffic sources, on the queueing delay and cell jitter performance of the CBR traffic through Statistical Multiplexitng To obtain an insight into the power spectral distribution and look for better schemes for the depression and filtering of the cell jitter, within the analyses we succeed deriving the power spectrum of the cell jitter for CBR traffic Hence, not only the power spectral distribution of the cell jitter can in the frequency domain be qualitatively understood, but also can the rms (root-meansquare) value of the cell jitter be quantitatively obtained so as to more accurately measure the amplitude of the jitter In the end-to-end performance analysis of the queueing delay and cell jitter, we propose a kind of quasi-periodic cell stream model to characterize the jittered CBR traffic, and present an initial queueing analysis of the CBR traffic following such a model at a generic intermediate node Additionally, we briefly discuss the buildout/playout and Source Timing Recovery functions of the destination node Finally, regarding the Source Timing Recovery of CBR traffic, this paper systematically discusses several important principles of the cell jitter filtering and depression reported in the literature, introduces several implementation schemes of the Source Timing Recovery e.

由于信元抖动的复杂性，非同步定时恢复方法目前还很不成熟。本文针对A类CBR业务流在ATM网络源节点和中间节点的排队时延和信元抖动性能，以及在目的节点的源定时恢复问题作了较为全面的研究。首先，文中描述了CBR业务流的信元抖动，并具体地给出了两种与CBR业务源定时恢复有关的信元抖动的定义。然后，采用了精确的数学模型和分析方法，有针对性地分析了业务背景中信元到达的纯随机性、确定性和相关性以及排队缓存器容量等因素对CBR业务流经过统计复用后的排队时延和信元抖动性能的影响。为了了解信元抖动的功率频谱分布和寻求更好的抑制和滤除抖动的方法，在性能分析中，我们成功地完成了CBR业务流信元抖动的功率谱分析，使得不但可以从频域定性地认识信元抖动的能量分布特性，而且还可以定量地求出信元抖动的均方根值(rms：root-mean-square)，以更为准确地衡量抖动的大小。在CBR业务流的多节点端-端排队时延和信元抖动性能分析中，我们提出了一种准周期性(quasi-periodic)信元流模型来描述感染了信元抖动的CBR业务流，并基于这一模型进行了CBR业务流中间节点的初步排队分析。

Researching of Design Method and Capability of Tube Structure Possessed Double Helix-Cantilever Trusswork;2. The results show that the structure meets performance requirements of design,columns and shear-walls,steel members of cantilever and.

计算分析结果显示，结构在中震作用下所有柱及剪力墙未发生屈服、悬挑部分钢结构及其支撑柱保持弹性，实现了性能设计提出的性能目标，说明基于性能的抗震设计提高了结构的抗震性能，保证了&大震不倒&的设防目标。

The grafting effect and mechanism was charac- terized by FTIR,The heat stability of unvulcanized and dynamical mechanical proper- ty of vulc- lcanizates of SBR and SBR-g- were tested by TG and DMA respectively. medium-resistance properties of SBR and SBR-g- vulcan- izates were also investigated.The results showed that addition of St accelerated GMA grafting onto SBR and control the decomposition of SBR. When the conditions were GMA/St/DCP was 8/4/0.3 and grafting temperature was 160℃.

结果表明，St对提高接枝率、抑制SBR的降解起到了积极的作用；SBR中聚丁二烯的α－H和双键共同参与了GMA/St熔融接枝反应；当SBR/GMA/St/DCP=100/8/4/0.3、接枝温度为160℃时，SBR的接枝率较高（23.78%），SBR–g–硫化胶的拉伸强度和撕裂强度比SBR硫化胶的分别提高了119%和27.4%；SBR–（GMA--co-St）未硫化胶的Tg比SBR未硫化胶的高，而耐热分解性能优于SBR未硫化胶；SBR–g–硫化胶在低温条件下的刚性增大、弹性降低、具有较低的内耗，在常温下的阻尼性能较高，但弹性性能保持较好；SBR–g–硫化胶的耐热稳定性以及耐非极性有机溶剂的性能优于SBR硫化胶。

A great number of dynamometer experiments are carried out to investigate the effects of structure characteristics of the injector, configuration of combustion chamber, design of the bypass valve and fuel injection phasing on the performance, emission, fuel consumption of the engine during light load operating conditions. After a final optimization and other practical considerations, the control MAPs for the two-stroke DISI prototype engine are obtained. The torque performance, fuel consumption and emission economy of the engine is tested and compared with those of the original carbureted engine.

并且通过大量的发动机台架试验，分析了喷油相位和喷油器的结构参数、燃烧室形状、旁通孔的大小等参数对发动机低速低负荷工况下的性能、燃油消耗和排放的影响规律；通过最后的优化和实际的考虑，获得了最终的二冲程直喷发动机样机的控制MAP图，试验研究了其动力性、燃油经济性以及排放性能，还做了该样机和原化油器发动机的动力性能、燃油消耗率和排放性能的比较。

Results demonstrate that the electrical conductivity is promoted companied with the increasing of heat treatment temperature.

研究结果表明，随热处理温度的提高，导电性能提高，尤其在400—800℃热处理阶段，导电性能提高迅速。1000℃以上热处理后的粘接样品具有良好的导电性能，继续提高热处理温度，导电性能的提高程度降低。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。