参数变化

ABSTRACT Using the θ-θ X-ray diffractometer, the structure of liquid Al-Fe system alloys at different composition was investigated at a constant temperature 1550℃. The relationship between parameters of the pre-peak in the structure factor and composition was studied. In addition, the structural change of the liquid hypoeutectic Al-Fe alloy and pure Al etc.

本文利用θ-θX射线衍射仪，在1550℃研究了不同成分Al-Fe合金的熔体结构，探讨了结构因子上的预峰参数随成分变化的规律，以及亚共晶Al-Fe合金和纯。。。

I have finished the ratio calculation of mw materials used to produce cementclinker, relative environmental impact importance assessment of emissions andenvironmental synthetic index under different conditions.the result means that we can selectthe optimal procession parameter and optimal procession ,considering environmentalactor ,mechanic erect kiln is the best one among the different kilns.the procession of closed-loop recyclable concrete is introduced in detail ,we found it is possible to make full use ofwasted concrete illimitedly by proper design ,though the recyclable concrete physicalfunction decreased a little comparing with virgin concrete, it's environmental property ismuch better than usual concrete.we also found that it is possible to use wasted concrete asthe coarse aggregate or fine aggregate.we probe the possiblity that fuzzy mathematics isused to judge whether a product is green product or not.

确定了不同窑型的最佳的工艺操作参数；比较了不同窑型的环境性能，得出结论：预分解窑是最佳的工艺选择。本软件具有专家系统的功能，本软件的最大特点是动态性和灵活性，这是为人为的因素，地方的因素变化性而设计的。允许输入不同的边界条件，即可得到不同的结果，这为水泥-混凝土的环境化设计提供了有力的帮助。本人也努力设计一个适用于水泥厂的数据库的框架，来实现水泥厂的在线评估。本文探讨了实现环境化设计的可再循环的混凝土的设计，得出结论：通过合理设计的混凝土的无限循环是可能的，虽然再循环的混凝土的性能与原混凝土相比有所下降，但其环境性能是普通混凝土无法比拟的，本文还探讨了废混凝土的利用的可能性及评估，废混凝土用作混凝土的粗集料是合适的，虽也可作细集料，但不值得提倡。

Cooling below Ti=675℃, there appears an incommensurately modulated structure analogous to the incommensurate phase in K2WO4, K2MoO4, etc.

在T_i=675℃以下出现调制结构，类似K_2WO_4，K_2MoO_4等的无公度相；参数κ的值由0.492(640℃)而随温度变化。在470℃出现整合相变κ=0.500，整合后的结构为室温相的超点阵。

Identical data inequilibrium stats and similar shock-induced reacting flow fields are gained for tworeaction models when projectile velocity is 3km/s. In this case, the molar fraction ofdissociated methane is so small that the frozen flow or a very simple reaction modelcan well describe the flow field of weakly shocked methane. As projectile velocityincreases, molecular methane is readily dissociated and some stable products are formed. Only do the numerical results of the 40 reactions involving13 species approach to the corresponding experimental results.

计算表明，当飞片速度低(3km／s)时，两种反应模型给出冲击状态参数的结果基本一致，因为这时甲烷气体冲击波后的成分变化很小，说明可以用更简单的化学反应模型描述高温甲烷的化学反应过程；当飞片速度增大时，甲烷分子迅速的离解，反应产物容易形成稳定的化合物，只有13组元40反应模型的计算结果才能与实验结果接近。

2The experts'systematic theory has began to be put into use,which makes the different parameters in the activity of network planning be ableto adjust according to the experts'experience in order to meet the demands inreality.

专家系统理论开始走进应用领域，这就使得网络计划中的各个工序参数可以参考专家经验不断变化，从而满足实际中的需要

In this paper, the 3-D finite element relocating mesh method is used to calculate the temperature field and the thermal creep stress field of spillway dam and mid level outlet dam in certain roller compacted concrete gravity dam, sensitivity analysis have been down with different parameters, such as placing temperature, the location of cooling pipe, cooling temperature, time for water supply, ascended-layer of concrete, intermissive time and different placing time, and the commendatory construction scheme have been put forward in such analysis; according by the test result on the two scheme of concrete aggregate combination (basalt as coarse aggregate and limestone as fine aggregate, basalt as coarse aggregate and basalt as fine aggregate), simulation analysis on temperature field and thermal creep stress field of the commendatory construction scheme have been down, and analysis have also been down on temperature field and thermal stress field of the two different aggregate combination, the result indicates that the spillway dam and mid level outlet dam which adopted these two aggregate combination can both satisfy the require of design crack resistance in concrete, furthermore limestone as fine is better than basalt as fine aggregate; the effect of summer water storage and winter water storage on the temperature field and thermal stress field have been analyzed, comparing with winter water storage, in summer water storage scheme the maximum tensile stress at abnormal concrete in upstream fill is decreased by 0.1～0.3MPa and there are no evidence change of the maximum tensile stress at other parts, which indicate that summer water storage is avail for the crack resistance of upstream fill; according to the simulation calculating result and comparing temperature simulation calculating results and temperature controlling measures of some similarity projects both completed and construction, synthesis appraise have been carried to the design temperature controlling measures of dam, and the temperature controlling measures of this project have been brought forward, all these have great reference value on the design of temperature controlling measures and the optimization of the construction scheme.

本文采用三维有限元浮动网格法仿真计算程序，对某碾压混凝土重力坝的溢流坝段和中孔坝段分别进行了三维有限元温度场和温度徐变应力仿真计算分析，对浇筑温度、冷却水管的布置方式、冷却水温、通水时间、浇筑升程和间歇时间、不同开始浇筑日期等参数进行了敏感性分析，在此基础上提出了推荐的施工方案；根据两种骨料方案(玄武岩粗骨料+灰岩细骨料方案；玄武岩粗骨料+玄武岩细骨料方案)的混凝土性能试验研究成果，对推荐的施工方案进行了温度场和温度徐变应力仿真计算，并对比分析了两种不同骨料情况下的温度场和温度应力，结果表明溢流坝段及中孔坝段采用上述两种骨料均能满足混凝土的抗裂设计要求，且灰岩细骨料优于玄武岩细骨料；计算分析了夏季蓄水和冬季蓄水对坝体温度场和温度应力的影响，夏季蓄水方案与冬季蓄水方案相比，坝体上游变态混凝土区域最大拉应力小0.1～0.3MPa，其他部位最大拉应力无明显变化，夏季蓄水对坝体上游面混凝土的抗裂有利；根据仿真计算成果并通过比较国内一些已建和在建的类似工程的温度仿真计算成果及采取的温控措施，对大坝的设计温控措施进行了综合评价，并提出了该工程的温控措施，对温控设计和优化施工方案具有重要参考价值。

Last, the Eigenenergies of isoelectronic series change against screening parameterλhas been discussed, it's shown that the plasma screening effects are decreasing as nuclear charge increasing.

最后，我们分析了等离子体环境中类氢等电子序列离子的能级和波函数随屏蔽参数λ的变化规律，发现随着原子序数增大，等离子体屏蔽效应的影响逐渐变小。

Variations of relative intensity of isoelectronic lines from the double tracing materials in laser-produced plasmas with electron temperature were derived according to local-thermodynamic-equilibrium model.

采用多组态Dirac-Fock方法计算所需原子参数，并在局域热动平衡条件下建立了双示踪离子谱线强度比随电子温度的变化关系。

Through image digitalization and digital image frame analysis, the dynamic change of arc state and droplet motion before and after its detachment from wire tip can be quantitively described. The kinematical and kinetical parameters of droplet motion can be solved. The development of the system provides a new way for the study of metal transfer mechanisms and the interaction between droplet transfer and weld pool.

该系统通过对高速摄影图象的数字化处理及时间图象序列分析，可以对熔滴过渡过程中电弧变化的动态过程及熔滴脱落前后的运动过程进行定量分析，并可提取出熔滴运动的各种运动学和动力学参数，为进一步的熔滴过渡机理及熔滴与熔池相互作用的研究提供了新的研究手段。

Based on structural health monitoring system of Donghai Bridge, the cable-stayed bridge response and environmental factors were measured during the typhoon Krosa. The characteristics of typhoon, wind-induced response and structural modal parameters variation were analyzed.

基于东海大桥健康监测系统得到的斜拉桥在&罗莎&台风下的结构动力响应和环境因素的监测数据，分析了台风的风特征、风致结构振动和风荷载下的结构模态参数的变化。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。