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Tensile strength and t- ear strength increased by 119%and27.4% compared to ungraft SBR Vulcanizates; The Tg of SBR ro- se after grafting and heat-resistence ability of SBR–g–is better than u- ngrafting SBR.

在获得接枝率高而且性能良好的SBR-g-的基础上，采用动态硫化法制备SBR–g–增容丁苯橡胶/聚氯乙烯热塑性弹性体（SBR/PVC TPV），研究SBR-g-对SBR/PVC TPV的增容效果。

The applicability of this constitutive model is evaluated with the simulations of material tests conducted by Sasaki et al., includes (1)Uniaxially constant strain amplitude cyclic test,(2)Fast in tension/Slow in compression constant strain amplitude cyclic test,(3)Slow-fast-slow constant strain amplitude cyclic test,(4)Cyclic strain with tensile hold time test. Simulations based on this constitutive model have a good agreement with (1),(2) and (3), proofs that it can describe the cyclic stress-strain behavior of 60Sn/40Pb solder very well.

为验证本模式之能力，本文选择Sasaki等人之实验为对象，分别对60Sn/40Pb焊锡在(1)定应变振幅之循环单轴负荷实验、(2)拉伸快/压缩慢之定应变振幅循环负荷实验、(3)慢-快-慢之定应变振幅循环负荷实验、(4)拉伸应力保持之循环应变实验下的材料行为进行模拟，由(1)、(2)及(3)之结果证明本模式对60Sn/40Pb焊锡循环应力-应变整体行为具有理想的描述能力，并对循环塑性应变范围与应力范围之值有准确的预估。

Elastic modulus of specimen processed by PPT method and HP method are obtained by adopting three-point bend test and tensile test of unnotched specimen respectively.

采用无缺口试件的三点弯曲试验，得出PPT法制备的试件的弹性模量；通过柔度变化率曲线上的第一转折点得出基体的破坏应变，并由此得到基体的强度。

In the rest of this chapter, a series of tensile tests were carried out at room and low (77K) temperatures for a variety of composite specimens which included unnotched and notched, as well as unidirectional or with a number of stacking sequences.

在本章其余部分，对各种复合材料试样（包括无缺口，有缺口，单向或各种铺层）进行了室温和低温（77K）下的拉伸试验研究。

It has been warranted through experiments and practical application that rare-earths-high-aluminium heat-resistant nodular iron has some intrinsic properties which are worthy of reconimandation, namely,that it will not scale after long periods of use at 1050-1100℃, will hardly break while being hammered into castings, runners or risers as the high-temperature tensile strength reaches 14-19 kg/mm2 at 800℃ or≥l3.3kg/mm2 at 900℃, with the room temperature strength close to HT 30-50 and the unnotched impact str...

本文介绍了稀土高铝耐热球墨铸铁的生产实践、化学成分；探讨了稀土作用及其用量和控制；论述了稀土和铝加入方式以及冷却速度对金相组织的影响；并对铸造工艺、铸件缺陷及分析、耐热性能及使用效果作了阐明。试验和使用证明：稀土高铝耐热球墨铸铁在1050～1100℃长时间工作不起氧化皮，热强度800℃时，14～19kg/mm~2，900℃时≥13.3kg/mm~2，室温强度近于HT30—54，a_k≈2～6kg·M/cm~2，锤击铸件或浇冒口，很难碎裂，并能机械加工。可以认为是以我国富产资源为原料，能用各种炉子熔炼、耐热和综合机械性能均较高硅、中硅中铝球铁、高铝片墨铸铁为高的一种耐热铸铁，也是镍铬系耐热材料较好的替代品。

Through the test of 8 RC shear wall specimens and the computer analysis of the strains of steel bars with keyways in the spccimens, the authors have studied the remains of tensile stress of concrete between cracks after cracking and put forward a formula to calculate coefficient ψ, the ununiform distribution factor of steel strain.

本文通过8片剪力墙板的试验，用计算机对各级荷载下钢筋连续应变值的分析，找出了钢筋混凝土剪力墙板开裂后裂缝间混凝土受拉性能的变化规律。给出了钢筋应变不均匀系数ψ的计算公式。

The compatibility of grafted version with butylruber matrix was studied by analsising solubility parameter of A-151 and butyl rubber, surface free energy of modified nano-silica and unvulcanized tensile compound butyl rubber. In the paper, the effects of modified nano-silica on physical properties of vulcanizes were studied.

通过研究偶联剂(A-151)和氯化丁基橡胶的溶解度参数、改性纳米二氧化硅和未硫化增强硫化胶的表面自由能分析了改性纳米二氧化硅与未硫化增强胶的相容性。

The high temperature field did not make tensile stress and shear stress of upslope pavement increase, but it made the flexure of surface rise.

对京珠高速公路某路段车辙病害展开现场调查，调查发现该路段严重的车辙变形，60%来源于中面层，其余。

The result notes that dynamic triaxial test preferably simulate the actual stress state of grading macadam, and Uzan model which considers the shear performance of material can better reflect stress states of grading macadam. Regression coefficients of the model obviously present nonlinear characteristic with moisture changed, and to further influence dynamic resilient module.More the module is larger, more diminishing rate of maximum tensile stress on pavement Bottom is smaller. To enhance draining function and strength, the gradation should been rigid controlled, and which the content of less than 0.075mm is controlled between 5～7％ and spring-back is controlled between200~300MPa are appropriate.

结果表明，动三轴试验较好地模拟了级配碎石层的实际受力状态；Uzan模型考虑了材料的剪切性能，更能反映了级配碎石在隧道路面中应力状态；随含水量的变化，Uzan模型中回归系数变化呈明显的非线性特征，进而显著影响级配碎石的动态回弹模量的变化；级配碎石模量越大，路面层底的最大拉应力减小率越小；为了兼顾到级配碎石层的排水渗透功能和强度，应严格控制级配，特别是0.075mm以下的含量宜控制在5％～7％，级配碎石的回弹模量宜控制在200～300MPa之间。

The results show that the microstructure of the cladding wire by drawing at room temperature is vimineous grain as fibril shape from prime equiaxed grain. The fibril diameter is in inverse proportion to deformation and the fibril length is in direct proportion to the square of deformation approximately. The ultimate tensile strength of the cladding wire by drawing at room temperature goes up in direct proportion to square root of deformation, whereas the elongation decreases and fluctuates.

结果表明：显微组织自原始的等轴晶变为细长条纤维状，纤维直径与形变量近似地成反比，纤维长度与形变量的平方近似地成正比；经室温拉变形的铜包铝线的极限抗拉强度随形变量增大而增大，与形变量平方根呈直线关系；延伸率随形变量增大逐渐降低，但延伸率波动较大。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。