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 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。 
The study sample was comprised of mothers assessed to be atrisk (n?=?491) and not atrisk (n?=?218) for child maltreatment in the Hawaii Healthy Start Program study.


International Trade program study the fundamentals and logistics of international trade and electronic commerce.


Map showing the National WaterQuality Assessment Program study units 5 2.


She noted that a National Toxicology Program study is under way to assess a preclinical model to study the risks associated with retroviral vectors.


Staff in the Fire Research program study these questions primarily using field experiments and surveys.

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Aging Program research is also exploring how assets are used at older ages, and how consumption changes at retirement.


All principal investigators funded in the Low Dose Radiation Research Program research program will be expected to participate in these workshops.


At the regional level, policy and program research addressing key questions related to the design of communitybased programs is critical.


Program research efforts receive support from federal, state, and private sources.


Roberta has over a decade of service in conflict resolution program research and curriculum design.

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 Research work in this paper includes inelastic analysis of earthquake responses of singlestory factory buildings with roofs continuing to act as a whole unit under seismic action. In case the building is made up of spans with roofs at different levels, then each roof system is taken as a horizontal rigid diaphragm with its mass concentrated at its center of gravity. Therefore, there are three degrees of freedom (two translational and one rotational) corresponding to every mass.According to the above model,... Research work in this paper includes inelastic analysis of earthquake responses of singlestory factory buildings with roofs continuing to act as a whole unit under seismic action. In case the building is made up of spans with roofs at different levels, then each roof system is taken as a horizontal rigid diaphragm with its mass concentrated at its center of gravity. Therefore, there are three degrees of freedom (two translational and one rotational) corresponding to every mass.According to the above model, a computer program was developed for the investigation of inelastic earthquake responses of equalheight or unequalheight multispan singlestory factory buildings subjected to ground motion in one or two directions.  本文研究了单层厂房在地震动作用下屋盖保持完整的非弹性地震反应。具有不同高度的每一屋面作为一个刚性盘体,并将其质量集中于重心。这样,对应于每一质量有三个自由度(两个平移和一个转动)。 按照上述模型编制了一个电算程序研究了等高和不等高单层厂房在单向或双向地面运动作用下的非弹性地震反应。  The electronic structure of HFe3(CO)11and its possible catalytic action in the carbonylation of propene have been studied by semiempirical SCF method CNDO/2. In order to modify the convergency of calculation, a damping factor λwhich changes its magnitude during calculation was introduced into the CNDO/2 programme. Besides, a subroutine for computing two center energy EAB(A or B may be transition metal) was used. From the calculated energies of some intermediate state in the course of carbonylation of propene,... The electronic structure of HFe3(CO)11and its possible catalytic action in the carbonylation of propene have been studied by semiempirical SCF method CNDO/2. In order to modify the convergency of calculation, a damping factor λwhich changes its magnitude during calculation was introduced into the CNDO/2 programme. Besides, a subroutine for computing two center energy EAB(A or B may be transition metal) was used. From the calculated energies of some intermediate state in the course of carbonylation of propene, the activation barrier of this catalytic reaction was estimated as 103 Kcal /mole, in another possible scheme, the activation energy of the carbonylation of propene to produce isobutanol was estimated as 233 Kcal/mole, which is much higher than the former. The charge transfer between the reactants and the catalyst in the course of reaction was also calculated. Discussion of the results was given.  本文采用CNDO/2(M)程序研究了三铁核羰基原子簇络合物HFe_3(CO)_(11)~的电子结构,及其在丙烯羰基化过程中可能的催化作用。结果说明HFe3(CO)_(11)~的桥键结构是稳定的,它具有催化活性,并且活性部位在桥键一湍,证实了内烯从桥端向催化剂进攻从能量上是有利的。通过计算说明HFe_3(CO)_(11)~催化丙烯羰基化生成正丁醇的活化能高于生成异丁醇的活化能。上述结果均与郑作光等的实验结论一致。同时本文选择了一组适当的铁原子的参数,在改善计算收敛性等方面对原CNDO/2程序作了一定的改进。  In this paper the physical model of statistical treatments of random fatigue load has been discussed systematically, it includes the compressive approach to random loadtime history, the detection of peak and valley values, the graphic model of rainflow counting method, the counting conditions and the treatment of two dimensional random variable, through the investigation of statistical treatment to random loadtime history by rainflow counting method. This paper introduces the concept of convergent and divergent... In this paper the physical model of statistical treatments of random fatigue load has been discussed systematically, it includes the compressive approach to random loadtime history, the detection of peak and valley values, the graphic model of rainflow counting method, the counting conditions and the treatment of two dimensional random variable, through the investigation of statistical treatment to random loadtime history by rainflow counting method. This paper introduces the concept of convergent and divergent weves, and gives the calculating model of convergent and divergent waves of equivalent damage to the counting of second stage by rainflow counting method. The counting carries on until the end of loadtime history record by rainflow counting method, the calculating results coincide with entire closure of stressstrain hysteresis loop of material.The results of treatment may serve as the basis of fatigue load spectrum compilation for constantmeanvalue, variablemeanvalue and doublevalue methods and two dimensional random variable, and also appropriate to the estimation of fatigue life.  本文通过用雨流计数法对随机载荷时间历程统计处理程序的研究,系统地讨论了随机疲劳载荷的统计处理及其物理模型,其中包括对随机载荷时间历程的压缩处理,峰谷值的检测,雨流计数法的图解模型以及二维随机变量的统计处理等。文中引入了收敛发散波的概念,对雨流计数法的第二阶段计数给出了等效损伤收敛发散波的计数模型,继续用雨流计数法进行计数,计数结果与材料的应力应变迟滞回线完全封闭相一致。 统计处理结果可作为常均值、变均值、双波法以及二维随机变量疲劳载荷谱的编制依据。同时也适用于疲劳寿命估算。   << 更多相关文摘 
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