1、

The proposed auxiliary commutation circuit consists of one resonant inductor and two bidirectional switch, which provides the ZVS condition to the main switch without increasing voltage or current stresses.

提出的辅助变换电路由一个谐振电感和两个双向开关组成,此电路没有增加主开关的电压和电流应力,却给主开关提供了ZVS的条件。

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2、

The reconfiguration function is mainly achieved by changing the biasing current for the Op-amp. Therefore, the optimization of the system and Op-amp is the two research stresses of this thesis.

ADC的可重构功能是通过改变运放的偏置电流实现的,因此系统的优化和运放优化设计是本论文的两个研究重点。

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3、

Studies on Carbon and Nitrogen Metabolism and Its Mutual Effect in Grain Filling Period of Barley under Soil Water Stresses

土壤水分胁迫下大麦籽粒形成期碳氮代谢及其互作效应

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4、

The article stresses the introduction of thermal balancing analysis of oil tank in hydraulic system, and parameter calculation of cubage and area of dissipation.

重点介绍液压系统中油箱的热平衡分析及其容积和散热面积参数的计算。

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5、

Combined linear creep theory with brittle-elastic failure model, the recurrence formulas of calculating the temperature creep stresses in pouring blocks of concrete under construction are derived in this paper.

本文将线性徐变理论和脆弹性破坏模型相结合,推导出计算混凝土浇筑块温度徐变应力的非线性有限元递推公式,并编制了计算机程序。

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6、

Residual stresses in the rail web of high strength rails from several foreign countries were measured by the saw cut method, and the effect of residual stress on rail web cracking was discussed.

通过采用锯切口法测定了几种进口高强度钢轨轨腰残余应力,阐述了残余应力对轨腰水平脆断的影响。

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7、

The Method of Curved Bar Units for the Analysis of Arch Dam Stresses

拱坝应力分析的曲杆单元法

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8、

Wild relatives of cultivated crop are important germplasm for improving yield, quality, resistance to biotic and abiotic stresses of modern cultivars.

野生亲缘物种是作物遗传改良的重要种质资源,对提高作物产量、改善品质、提高对生物和非生物逆境的抗性具有重要作用。

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9、

The experimental results showed that both the circumferential and axial stresses around the cross section varied in a similar "W" shape, but the former was larger than the latter in absolute valume.

实验结果表明,弯头横截面上的环向应力和轴向应力分布均呈相似的W型,但各点环向应力的绝对值均大于轴向应力。

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10、

The stresses from the structural analysis are combined with the pavement distress models to predict the rutting and fatigue cracking of pavement, and compared with the measured distress.

接著将结构分析结果与破坏模式结合预测铺面在车辆反覆荷重所造成之车辙与疲劳龟裂,其结果亦与观测值作比较。

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11、

Study of Thermal Curling Stresses about Cement Concrete Covering of Airport Pavement

机场水泥混凝土加铺层温度翘曲应力研究

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12、

Based on the Reissner Mindlin type global displacement field and predictor corrector method, the deflections and transverse shear stresses were investigated for laminated composite cylindrical shells under mechanical load.

本文根据Reissner Mindlin型的全局位移场(一阶和三阶),应用有限元预测&修正法,数值计算和分析了机械载荷作用下复合材料层合圆柱壳的挠度和横向剪应力。

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13、

Residual stresses were measured by X-ray diffraction, and eddy current electrical conductivity testing was applied to control the variation of mechanical properties.

采用X射线衍射法测定应力消除前后铝合金试样的残余应力,利用电导率涡流检测技术与拉伸试验相结合的方法来评价铝合金深冷处理后的抗应力腐蚀性与机械性能等质量指标。

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14、

An investigation of the effects of mean and alternating stresses on short fatigue crack growth under uniaxial loading is reported.

本文报道单向加载下平均应力和交变应力对疲劳短裂纹生长的影响。

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15、

Investigation on Local Stresses in Anchorage Zone of Continuous Rigid Frame Bridge

连续刚构桥锚固区局部应力的研究

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16、

The issue of the stresses felt by students in elite school districts has gained attention in recent years as schools in places like Newton, Massachusetts, and Palo Alto have reported a number of suicides.

近年来,随着马萨诸塞州的牛顿市和帕罗阿尔托等地的一些学校岀现了多起自杀事件的报道,在精英学区的学生面临压力的问题也受到人们的关注。

四级真题- 2018年 6月 3卷 信息匹配

17、

The core of the equivalence analyses is finding an alternative test method and accordingly the right test parameter to reproduce the stresses applied on the valves, which are equivalent with that in the real conditions by effect.

等效性分析的核心是要通过合理的试验电路、控制方法、试验值来模拟阀在实际运行中承受的各种应力,使之具有同样的效果。

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18、

A theoretical analysis of angular deformation and local stresses in spherical vessels

球形容器角变形及其局部应力的一个理论分析

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19、

Although the stress level is below the yield strength, long-term exposure to the alternating stresses may make the platform suffer the suddenly fatigue damage.

虽然应力水平远低于材料的屈服强度,但是在长期的交变应力作用下,桩腿有可能产生突然性的疲劳破坏。

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20、

Fatigue behaviour of y_2o_3-zro_2 ceramics under alternating stresses

Y2O3-ZrO2胸瓷在循环应力作用下的疲劳特性

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