查询词典 Poisson ratio

Further, we use return on equity to measure corporate performance and the management expense ratio and the asset turnover ratio to measure agency costs.

我们构建了公司治理指数用来衡量公司治理结构，用自由现金流来衡量债券融资对经理过度消费等行为的约束，用主营业务利润率来衡量公司经营绩效，用管理费用率和资产周转率来衡量公司代理成本，结果显示公司债券融资对公司治理结构、自由现金流和公司绩效影响不显著，但与公司的代理成本为显著正相关，也就是说目前我国公司债券融资还不能发挥债权治理的功能。

The final results of empirical studies give as follows: the ownership of China institutional investors is negative to debt-asset ratio in the down range, positive to asset turnover ratio in the raise interval, positive to company size, earnings per share, and return on investment, negative to book-to-market rate, and in the later negative to the exchange rate and market risk.

最终实证研究结果为：中国机构投资者持股比例与资产负债率在股指下降时负相关，与资产周转率在股指上升时正相关，与公司规模、每股收益、投资回报率正相关，与账面市值比负相关，在后期与换手率、市场风险负相关。

Results show that detonation velocity of compound explosive declines from 3100 m·s-1 to 2100 m·s-1 when mass ratio of attenuant rises from 20% to 60%(explosive loading thickness is 30 mm ),and the density of compound explosive rises from 0.615 g·cm-3 to 0.76 g·cm-3 when mass ratio of attenuant rises from 20% to 50%.

结果显示，当稀释剂含量从20%增加到60%时，混合炸药的爆速(药厚：30 mm)由3100 m·s-1降到2100 m·s-1，炸药的密度也由0.615 g·cm-3增加到0.76 g·cm-3(稀释剂含量： 20%~50%)；稀释剂含量为50%的混合炸药，当药厚在25~50 mm范围内时，爆速保持在2300~2360 m·s-1之间。

The ratios of components especially two main components Ⅰ and Ⅱ varied significantly among different generations, and displayed similar law as that of titer. The ratio of two main components was close to the ratio of commercial attractant source in China or aboard, but that of the third and fourth generations were significantly different.

各组分的比例特别是两主要组分Ⅰ、Ⅱ的比例不同代间差异显著，差异性规律与滴度变异规律相同，一、二代两主要组分的比例接近与目前国内外商品化诱芯的配比，而三、四代的比例则差异显著。

The thesis investigated the effect of reation temperation, pH value, and material ratio on the chelating reation. To determine the L-aspartic acid zinc complex\' chelation ratio by orthogonal experiment, we get the best conditions of reaction. On this basis, the thesis synthesized L-aspartic acid autunite complex and L-aspartic acid coppe complex.

本课题探讨了反应温度、反应溶液的酸度、原料配比n：n三个方面对L-天门冬氨基酸与金属元素反应得影响，并以螯合率为指标，运用L_9(3~4)正交设计实验对影响L-天门冬氨基酸螯合锌的条件进行了研究，得出最佳的反应条件。

The instructive conclusion was: 1 under the vertical loading, the shear-lag effect was produced badly, more severer under concentrated loading than under uniform loading .2 the longitudinal bending deformation of the beam flange was true of the imitating plane assumption of deformation . 3 the width length ratio was confirmed as the first factor working on the shear-lag effect among all the geometric parameters;4 the shear-lag coefficient of simple-supported box-girder was severer than the continuous box-girder, the shear-lag effect in the inner supported section of continuous beam was much more severer, we need paying more attention for it in designing. 5 the non-liner characteristics of material deformation have littlie influence on shear-lag effect in BGCW. 6 the experiential calculating formulation and calculating diagram for the effective flange width was raised with the only factor of the width-span ratio., but the primary location of axis of bending moments should not be changed while calculating the inertial moment .

研究认为：1室内模型试验和空间有限元分析结果均表明波形钢腹板组合箱梁在竖向荷载作用下，翼板出现了典型的纵向应力剪滞效应。2在竖向荷载作用下，截面高度上各点纵向正应变分布认为可符合"拟平截面假定"，以此作为波形钢腹板组合箱梁抗弯计算的基本假定。3箱梁宽跨比是影响波形钢腹板组合箱梁翼板剪滞效应的主要因素。4连续波形钢腹板组合箱梁的翼板剪滞系数大于简支梁，且连续箱梁内支点截面翼板剪滞效应相当严重，对此需十分重视。5当混凝土翼板受力由弹性阶段进入弹塑性阶段时，材料的非线性特性对翼板的剪滞效应影响甚微。6提出了根据组合箱梁的宽跨比参数来计算翼板有效宽度比的经验公式和计算图表，但箱梁截面抗弯惯性矩的计算不应改变原先的截面中和轴位置。

To give the definition of the mass concrete and to concrete\'s cracks together with practical meanings of control ,and give a brief review on the research in the field at home and abroad, at last, methods to control temperature crack of the mass concrete from several aspects such as design measures,concrets material, construction schedules.etc are summed up; To explain the physical mechanics of the concrete and computing methods-Difference Method and Finite Element Method, and illustrate the application of their specific methods repectively;Several temperature factors that can influence the temperature stress of mass concrete baseplate are analyzed. The influence degree of temperature factor can be got through the ANSYS simulation computation the control of temperature can control the temperature stress, consequently control the temperature crack of mass concert baseplate; through the influence of the crack resistance ability of mass concrete baseplate which takes the reinforcement as a part is analyzed. By ANSYS simulation, the best suited volume ratio of reinforcement is found out, at same time the layout of reinforcement with the same volume ratio can also affect the resistance ability of mass concrete baseplate. Sum up of above analysis, anti-crack function of steel bar in early mass concrete baseplate is obvious, so it\'s necessary to consider beneficial effect of construction steel bar in research of temperature control on mass concrete baseplate.

本文先容了大体积混凝土及混凝土裂缝的基本概念，对国内外在这个领域里的研究现状作了扼要叙述，并从结构设计、混凝土材质、施工措施等方面总结了大体积混凝土温度裂缝控制的方法及防止措施；阐述了混凝土的基本物理力学性能，总结了大体积混凝土温度计算的方法——差分法和有限元法，并分别举例说明其具体应用的方法；分析了影响大体积混凝土底板温度应力的几种温度因素，利用ANSYS模拟计算，得出了每种因素的影响程度，通过分析提出了在这几种温度影响因素下如何通过控制温度以达到控制温度应力从而来控制裂缝的具体建议；针对大体积混凝土基础底板中配筋的不同对混凝土底板抗裂能力的影响不同，利用ANSYS进行模拟分析，得出底板中最合适的体积配筋率，同时分析了在相同体积配筋率下钢筋的具体布置对大体积混凝土基础底板抗裂能力的影响，分析表明，配置钢筋对混凝土结构的开裂阻止作用明显，在研究大体积混凝土温度裂缝题目时，要考虑钢筋在其中的有利作用。

Absrtact: After analyzing market of body 2building industry in five provinces of northwestern China by using theory of industrial orga2 nization ,the conclusion as follows : In recent years the healthy body club quantity rose quickly , the club management scale gradually expands , the industrial market capacity increases causes northwest five provinces sports healthy body industry market concentration ratio to belong to the low market concentration ratio ; I ts product di fference low; The club enters/ withdraws from the market the bar2 rier to be bigger.

摘 要：采用产业组织理论对西北五省体育健身产业市场进行分析。近年来健身俱乐部数量上升快、俱乐部经营规模逐渐扩大、产业市场容量增大致使西北五省体育健身产业市场集中度属于低市场集中度；其产品差别度低；俱乐部进入/退出市场的壁垒较大。

The effects of synthesis temperature on the lattice parameter,the crystallite size and the content of CO2-3 of the prepared samples,the effects of the concentration of reactants on the particle size and morphology,and the effects of the molar ratio of barium hydroxide to tetrabutyl titanate on the molar ratio of bar...

研究了合成温度对样品的晶胞参数、晶粒大小和CO32-含量的影响；反应物浓度对样品的颗粒大小和形貌的影响；氢氧化钡与钛酸四丁酯的摩尔比对样品中钡钛摩尔比的影响。

Basanite and tephrite from Mt. Crater, Cape Bird and Bonney Lake exhibit similar composition in major elements and trace elements, rare earth elements . They are enriched in MgO, TiO〓, transitional elements and compatible elements , and depleted in SiO〓, Al〓O〓, Na〓O, K〓O, incompatible elements and rare earth elements; Latite from Cape Rodeys and Cape Evens are different from basanite and tephrite, they are enriched in SiO〓, Al〓O〓, Na〓O, K〓O, incompatible elements and rare earth elements, and depleted in Mgo, TiO〓, transitional elements and compatible elements. Volcanic rocks in five regions have the same isotopic ratio of 〓Sr/〓Sr (0.703115-0.703334) and 〓Nd/〓 Nd (0.512892-0.513076), however,〓Pb/〓Pb ratio in volanic rocks from Mt. Crater, Cape Bird and Bonney Lake is lower than those of Cape Rodeys and Cape Evens.

在主元素氧化物和微量元素、稀土元素含量上，克雷克特山、鸟角和博尼湖南岸的碧玄岩、碱玄岩成分比较类似，均具有较高的MgO、TiO〓、过渡元素和相容元素，较低的SiO〓、Al〓O〓、K〓O、Na〓O、不相容元素和稀土元素；罗德角和伊万思角安粗岩雷同，它们具有较高的SiO〓、Al〓O〓、Na〓O、K〓O、稀土元素和不相容元素，较低的MgO、TiO〓、过渡元素和相容元素，但五地区火山岩几乎具有一致的Sr、Nd同位素比值，〓Sr/〓Sr＝0.703115-0.703344、〓Nd/〓Nd＝0.512892-0.513076，在Pb同位素比值上，五地区的〓Pb/〓Pb＝18.664-19.913，其中碧玄岩和碱玄岩比安粗岩的比值稍低。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。