效率

After analyzing the reason of high energy consumption in desulfurization system, which belongs to Datang Huayin Zhuzhou power generation company, we have raised the following transformations: First, in order to improve the density of serous fluid and efficiency of pulping, install the frequency-converter to the recycle pump of ball mill; The second, in order to monitor the parameters real time and long time, change the installation location of densitometer and PH meter in the absorption tower; The third, in order to decrease the station service power consumption rate, change the booster fan according to model; Last,through optimizing the mode of operation desulfurization serous fluid recycle pump, and make good use of PH meter in absorption tower, we have got achievement that increasing desulfurization efficiency and decreasing the desulfurization consumption rate.

针对大唐华银株洲火力发电公司脱硫系统运行能耗高的现状进行分析研究，提出对球磨机循环泵变频改造，提高制浆密度，提高制浆效率；对吸收塔密度计和PH计移位改造，便于对参数长期实时稳定监视；对进行换型改造，降低厂用电率；通过优化脱硫浆液循环泵运行方式，脱硫塔运行PH值等手段，达到提高脱硫效率，降低脱硫厂用电率的效果。

The efficiency correction function of source absorption of an HPGe γ detector is determined by experiment in energy range from 59.5keV to 1408keV and density range from 0.3g/cm^3 to 2.0g/cm^3. Fit Polynomial and fit Sigmoidal are compared.

采用实验法在59.5keV~1408keV的能区和0.3g/立方公分~2.0g/立方公分的密度范围内，测定一台HPGeγ谱仪效率的源自吸收修正函数，比较了多项式拟合和S拟合两种形式的源自吸收效率修正函数。

The change met the technical requirements of the new age by engaging a large professional signal element and prevented the decline in efficiency that so commonly spoiled the fortunes of family firms in the second and third generation after the energetic founders.

这种变化通过引入许多的专业因素从而适应了这个新时代的技术要求，并且它防止了效率的降低。这种效率的降低在精力充沛的创业者之后的第二代和第三代人的时候，经常会毁掉那些家族公司的财富。

The main jobs of this paper are as followed: 1 The reuse of the frame design technology for aircraft assembly fixtures is researched. a frame line part library is built with the templet driven technology, the reuse of the frame line part come true by the tools for instantiation and instance modification. The design resources are effectively used, some repeating work is cut. 2 Two methods to obtain the assembly feature are proposed: the straight way by the Enumeration method and the indirect way by project features to the assembly plane. All of the assembly features of the frame and the adjustable bearings are obtained by these two methods which makes the frame automatic assembly technology for aircraft assembly fixtures come true. 3 The frame automatic assembly technology aircraft assembly fixtures based on assembly features is researched. A binary tree assembly model is used to express the assembly information of the frame for aircraft assembly fixtures, the automatic assembly between the frame, the aircraft and the adjustable bearing is completed within the three steps: distribute, obtain and evaluate assembly feature. Finally, the efficiency of the frame assembly design is proved. 4The frame interpart modeling technology for aircraft assembly fixtures is researched, the intersection methods are concluded and the arithmetic of the single-cut, double-cut and inter-cut intersection is proposed, the interpart fast modeling of the frame design for aircraft assembly fixture come true. 5Based on the researches mentioned before, a sub-system of frame fast design for aircraft assembly fixture is developed on CATIA. The sub-system is used to design the aircraft assembly fixtures in a large aeronautics corporation and make a good- effect.

论文的主要工作如下： 1研究了飞机装配型架骨架设计重用技术，在总结归纳骨架线框结构类型的基础上，应用模板驱动的方法建立了骨架线框库，通过骨架线框零件的实例化和离线编辑实现骨架线框的重用，有效利用设计资源，减少重复劳动； 2提出穷举几何对象的装配特征直接获取方法，遍历零件模型的几何对象，从中捕捉所需装配特征，该方法简捷、高效；提出向装配面投影的装配特征间接获取方法，该方法在现有特征基础上生成装配特征，解决了部分装配特征难以直接获取的问题； 3研究了基于装配特征的飞机装配型架骨架自动装配技术，采用一种二叉树装配模型表达骨架的装配关系，并通过装配特征的分配、获取和赋值三个步骤，实现了骨架分别与飞机产品和可调支承的自动装配，避免了繁琐的人工交互操作，提高了骨架设计的效率和规范化程度； 4研究了飞机装配型架骨架零件间建模技术，在总结归纳骨架元件相贯处理方式的基础上，提出了骨架元件单剪切相贯、双剪切相贯和互剪切相贯的实现算法，简化了骨架相贯处理的过程； 5基于以上研究，在CATIA平台上开发了飞机装配型架骨架快速设计子系统，并应用于某大型航空企业的装配型架设计，提高了设计效率和设计质量。

It establishes the uniform, singular and two kinds of normal distributions models of diffusion layer statistical distribution, the result shows that the more singular the statistical distribution of the cathode gas diffusion layer porosity is, the better the cell performance is, and the more uniform, the worse the cell performance is.

最后，从热力学的角度分析了燃料电池过程的能量转化形式，反应的焓变主要转变成电能和热能两种能量形式；归纳了燃料电池电化学的一些基本理论模型及简单的推导过程；描述了燃料电池效率的一些不同的定义以及对采用热电联供的方式提高燃料电池能量利用效率的分析。

We selected methods data envelopment analysis and set one input and six outputs (money list, driving distance, driving accuracy, greens in regulation percentage, sand saves and putting average) figuring out the efficiencies, return to scale, slack variable analysis, sensitive analysis and productivity changes of four golfers.

研究方法采用资料包络分析法，设定一项投入衡量指标与六项产出衡量指标（奖金数、开球距离、开球准确率、上果岭成功率、沙坑救球率、平均推杆数），寻求四位选手的参赛效率、规模报酬分析、差额变数分析、敏感度分析与跨期效率变动情形。

The results and conclusions were as fellow: First, the four golfers perform inefficiency in last three year; decreasing return to scale; slack variable analysis as the training goals; sensitive analysis reveal that Candie Kung should advance items of driving accuracy, driving distance, sand saves, putting average and money list; Amy Hung and Teresa Lu were greens in regulation percentage; and driving for Yu Ping Lin.

结果与结论：首先，我国四位选手近三年来参赛总效率皆为相对无效率；规模报酬呈递减状态；差额变数结果做为最佳训练目标；敏感度分析发现龚怡萍需加强重点项目为开球距离、开球准确率、沙坑救球率、平均推杆数与奖金数表现，洪沁慧与卢晓晴为上果岭成功率，林玉萍为开球准确率。

A combined fairness measure and system spectral efficiency measure is the fairly shared spectral efficiency .

恰当的方法和系统频谱效率的测量的结合可以得到更确切的频谱效率。

In experiments, performances of the chamber density, the cooling speed of cold trap, and the efficiency of heat exchanger are all better than the contrast machine, so do the results of drying volume of the experimental machine, water capture of cold trap, drying efficiency, and electricity consumption in drying experiments of water.

在实验中发现腔体的气密度、蒸发吸附盘管降温速率及热交换器的效率皆比市面上对照机台佳，且在水的乾燥实验中，实验机台的抽水量、蒸发吸附盘管捕水量、抽水效率及耗电量皆优於对照机台。

Results show that there is much local secondary flow in square cyclone besides main vortex, such as spiral down-stream near surface and spiral up-steam at central zone.

结果表明：方形分离器内除外涡旋与内涡旋等主流外，还存在许多局部的二次流，这些二次流是影响分离器的分离效率的主要因素之一；结构参数的变化对二次流的强度及位置产生影响，进而影响分离器的分离效率。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新