强度控制

When changing the flexible segment -- hydroxyl polyether's type and its molecular weight, and rigid segment -- aromatic isocyanic acid ester's type and function, solid's intensity, the heat resistance, the compressive strength and other performance will also vary.

改变氰凝预聚体结构中的柔性链段——端羟基聚醚的种类和分子量，或调节刚性链段——芳香族异氰酸酯的种类和官能度时，对固结体的强度、耐温性、抗压强度和其它性能可以进行控制。

Five full-scale reinforced shear wall models are tested to study the influence of five different thicknesses of pouring layers and vibrating modes on laitance thickness, shrinkage crack and control of strength and temperature of C70 high strength concrete shear walls.

摘要］对5片大型配筋剪力墙进行足尺模型试验，研究5种不同分层浇注厚度及振捣方式对C70高强混凝土剪力墙浮浆厚度、收缩裂缝及强度、温度控制的影响。

During the design of perforated liner casing, small phase angle and proper larger diameter and density of perforation are adopted and initial ovalization is constrained strictly in order to improve the collapse pressure and area of passage.

建议在实际煤层气完井筛管设计过程中，采用小相位角，严格控制初始椭圆度，适当增加射孔直径和射孔密度，以达到提高筛管抗挤强度和增加过流面积的目的。

The results show that, Au-19.25Ag-12.80Ge brazing alloy is better, its melting temperature range is 446.76494.40 ℃, and the temperature interval between the solidus and the liquidus is 47.64 ℃. When the brazing temperature is in the range of 510550 ℃, the alloy has a good spreadability and wettability with Ni. Interface structure observation reveals that there is one continuous intermetallic layer between the brazing alloy and the base metal Ni when welding. X-ray energy spectrum analysis results show that the intermetallic layer is Ge3Ni5, and because of its brittleness, the overthick intermetallic layer will decrease the shear strength of the welding joint, therefore, the welding technology should be controlled so as to gain an ideal welding interface structure.

研究结果表明：Au-19.25Ag-12.80Ge合金的性能较好，其熔化温度范围为446.76~494.40 ℃，结晶温度区间为47.64 ℃；焊接温度在510~550 ℃范围内时，Au-19.25Ag-12.80Ge钎料合金与Ni基体具有良好的铺展性和润湿性，焊接时钎料合金与Ni基体之间形成了一条连续的金属间化合物层，能谱分析表明该金属间化合物层为Ge3Ni5，由于该化合物较脆，过厚的金属间化合物层使焊接接头的剪切强度下降，故应适当控制焊接工艺以获得理想的焊接界面组织。

This paper gives mechanical testing results of sand-gravel materials in the Liangcha river that show good compaction, high shear strength and low compression behavior. The materials in both panical grades and engineering, behaviors can meet the requirements of different parts of the dam body. And it also discribes a stlbzone in the dam body, design specification, construCtion parameters as well as embankment, slope comp...

本文对两岔河砂砾石的物理力学性能进行分析，认为砂砾石的压实性好、抗剪强度高、压缩性低，不论是颗粒级配还是工程性质均可满足坝体各分区的要求；对坝体分区、设计技术指标、施工参数以及1年来的填筑施工、斜坡碾压、砂浆固坡、质量控制等方面的具体作法，进行了全面的介绍。

This method can make sure the structure radiant sound status in total noise and the detail phonate part quickly and correctly.(3) Study on the control mechanism of structure noise radiated from rotary machines, we build a common model of rotary machine structure noise analysis relied on the general characters of rotary machines. Based on this model, we analyzed various influence factors to structure radiant noise using the union of revolution and numerical calculation method. We found that the joint stiffness between the rotor and the frame is the most sensitive parameter of structure radiant noise by calculating and analyzing.

根据本文对于旋转机械结构噪声控制技术的研究结果和惯性振动筛工作的特殊要求，对有关参数的选择进行了讨论，并通过试验为降低惯性振动筛噪声找到了两个新的方法：即，在轴间相对运动要求不高的情况下，可以在激振器与筛体之间安装一组减振器，通过适当选取减振器参数，既可以使机体在工作频率附近获得稳定振幅，保证振动筛正常工作，又可以使机体的高频响应减小，降噪效果显著；反之，如果轴间相对运动精度要求(来源：1aABC论文网www.abclunwen.com)较高，可以采用空心滚动体轴承，在保证滚动体强度的条件下也可以获得较好的降噪效果。

The influence of the methyl modified SiO 2 gel glass matrices on the thermal and fluorescence properties of photoactive organic species were also studied in t...

结果表明，由于甲基的影响，缩聚反应速度成为以纯 MTES为先驱物制备光学均匀复合固态染料激光介质的关键控制因素，甲基改性复合固态染料激光介质可进行较高温度热处理，经适当温度热处理后，染料的荧光强度有较大提高。

The environment light intensity is converted into a high or a low electric level of RA2 which is one of the input ports of single chip microcomputer through a photoresistance MG44-2.The AD module will sample and the result will be stored in the work register then compared with a prestablished quantity.

基于PIC16F877A单片机的电子时间引信LCD背光控制，将环境光强度通过MG44-2光敏电阻器转换为单片机输入端口RA2上的电平高低，经模数转换模块进行采样，其结果存入工作寄存器，并与预先设定值相比较。

The former two types are brittle ones, and the fracture strain of pyrolytic carbon matrix is the controlling factor of the strength.

前两种为脆性断裂方式，热解炭基体的断裂应变是这类材料强度的控制因素。

Finally, simulation software was developed with Visual C++ and Delphi for 2D molding analysis of MIM, which affords facilities for the quality forecast of 2D thin wall parts and optimal design of mold and process parameters. In the research of molding performance of MIM feedstock, for the shortcoming of capillary rheometry, it was propounded that using spiral mold test molding performance of feedstock, and a set of spiral mold was creatively designed with quickly exchange gates and closed mold cavity. With the spiral mold, an orthogonal experiment was made on getting regress equation of flow length L〓 of the heavy alloy feedstock. Then the rule of L〓 varying with Q〓, P〓, and ΔT〓 was discovered. Q〓 ranks first in the influence on process parameters of molding performance, P〓 and Δ T〓 second. Therefore the injection rate Q〓 should be controlled primarily to improve the flow performance of feedstock.

在MIM喂料注射成形性能研究方面，针对毛细管流变仪测试法衡量流动性能的不足，提出使用螺旋线模具测试喂料熔体的注射成形性能，创造性地设计了一套可快换浇口，模腔封闭的螺旋测试模，并在螺旋测试模上采用正交实验设计，得出了高密度重合金喂料流动长度L〓的回归公式，揭示了L〓随Q〓、P〓、△T〓和S〓的变化规律，并得出工艺参数对成形性能影响的强度顺序为Q〓最大，P〓与△T〓其次，因而改善喂料流动性能应优先控制注射速率Q〓。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。