有效质量

The reconstruction problem is ill-posed, so two optimal criterions, the least module and the smoothness criterion base on Tikhonov regularization technique, are introduced into reconstruction algorithm. Many regularization parameters choice strategies are investigated, and the TPA(Two—Parameter Algorithm) strategy which is based on the Morozov discrepancy principles, is implemented in two regularization reconstruction algorithms.Numerical experiment results show that the nonnegative and smoothness constraint condition can overcome the difficulty of iteration semiconvergent, preconditioned technique can improve convergence rate and reconstruction accuracy, smoothness regularization criterion can meliorate ill-posed problem of reconstruction and enhance iteration stability, and the TPA is an effective strategy of regularization parameters choice.

数值试验表明：在共轭梯度法中引入非负约束和光滑约束改善了迭代的"半收敛"性，非负约束保证了解的非负性，光滑约束抑制了重建解的振荡现象，约束算法的重建精度与无约束算法相比大幅度提高；在约束共轭梯度重建算法中引入预优技术，可以加快算法的收敛速度，提高迭代的稳定性和重建精度；引入光滑准则的正则化技术可以有效改善图像重建问题的不适定性，加快迭代的收敛速度，提高迭代的稳定性和图像重建质量，计算正则参数的TPA算法在闪光照相图像重建中是有效的。

Strong academic background and qualifications of our professional consulting team include: Professor Gao Xiao, such as Beijing University, Tsinghua, returned overseas doctor, the first line of research, linguistics experts; Translation U.S. Team member include: Ph.D., English professional certificate 8 winner , Translation Certificate winner, senior technical translation, native-speaking English Edit diversified professional configuration, effective working team we are fully aware of each translation team linguistic characteristics of staff, as well as strengths and weaknesses; we start to build from the language of professional translator to communicate the evaluation system; We accept various professional translators, and the course of a project carried out simultaneously for translators personalized training; rich experience, and meticulous work style and thoughtful follow-up services in various fields to grasp the terminology and the variety of language structure , and then effectively organized into authentic language; meticulous scrutiny usually made for our customers seriously and deeply moved; not only the commitment to your high-quality manuscripts, but also to use our Services to make you believe that trustworthy

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In order to control effectively the compaction of subgrade,the internal mechanism and the relationship between the maximum dry unit weight of different mixture soil materials and optimum moisture content are studied on the basis of a long time of construction experience and a great amount experiments and test data. Major factors affecting road compaction and compactness analysis method in construction check are ascertained through abnormality and distortions represented by com paction data.

为了有效地控制路基的压实质量，根据长期施工实践、大量试验和检测数据，对道路压实形成的内在机理、不同土工混合料的最大干容重与含水量之间的关系进行分析研究，并通过广泛采集检测的压实数据所表现出的反常与失真现象，可确定影响道路压实质量的主要因素，以及施工检测中应掌握的压实度分析方法。

Some key part is ameliorated to meet the demands of working. This thesis mainly includes:(1) Analysing the working principle of the spring operateing mechanism, expatiating the character of the mechanism;(2) With the design aim of the spring operating mechanism, accomplishing the design of ZW□-12/630-20 outdoor HV vacuum breaker based on the systemic design theory of the spring operating mechanism, which includes spring mechanism of open-close switch; cam mechanism based on the principle of power balance; buckle-off mechanism with force-minished device; ratchet wheel mechanism with number-increased detent;(3) In the design on the spring operating mechanism for the outdoor vacuum breaker, using the air cushion device with speed controller to ensure the steady working of the spring operating mechanism;(4) Accoding the problem of daily maintenance for HV circuitbreaker, giving some effective steps of daily maintenance.

论文工作主要包括以下几个方面：(1)从真空断路器弹簧操动机构的功能原理出发，详细分析了该机构的工作原理，阐述了机构工作的基本特性；(2)根据工程实际提出了真空断路器弹簧操动机构的设计目标，在系统分析弹簧操动机构设计理论的基础上，完成了ZW□-12/630-20型户外真空断路器弹簧操动机构的设计工作，其中包括真空断路器弹簧操动机构的分合闸弹簧机构的设计；以输出力特性曲线设计机构理论演化出的功率平衡原则为基础的凸轮机构的设计；带有减力机构的滚动摩擦扣结方式的脱扣机构设计；根据实际情况增加了棘爪数量的棘轮机构设计；(3)在真空断路器弹簧操动机构的设计中，引入了速度控制模式空气缓冲器，对惯性负载起到了良好的自动缓冲效果，从而保证了真空断路器弹簧操动机构稳定、有效地运行，保证了真空断路器的动作质量；(4)针对目前真空断路器运行过程中存在的问题，提出了有效的日常维护措施。

It was proved that the method which wasonvenient, rapid and reduplicate could be used to identify different samples of Oviductus Ranae. We would establish a sensitive and specific HPLC method for the quantity control of Oviductus Ranae.

本实验不仅建立了哈蟆油的HPLC指纹图谱，而且还首次成功地利用该方法对哈蟆油的真伪进行了鉴别，能够有效的监测哈蟆油的质量，作为其质量控制的手段，为名贵动物药哈蟆油的开发和利用奠定了基础。

Results showed that spraying KCl solution every other day for 15 days from late flowering decreased nitrate content in the leaf and stem, promoted nitrogen redistributed to silique, increased nitrate reductase activity in the leaf. After spraying 1% KCl solution does not affect the fresh weight of rapeseed. And more obvious differences between the species, different varieties of the same deal with the differences between the more significant.

结果表明，喷施氯化钾溶液能有效降低油菜茎叶硝酸盐含量，与喷施硫酸钾溶液和清水相比达到了显著水平；有效促进了氮素向角果分配；喷施氯化钾还可以增强叶片硝酸还原酶的活性，但不影响喷洒后采样时油菜总的鲜质量；而且品种之间处理后的差异比较明显，同一品种不同处理之间的差异也比较显著。

Results the uncertainty from sampling,standard stock solution diluted, standard curve and recoveries are the key factors.conclusion the method of uncertaintuy for determination of manganese in air from workplace by faas can be used in quality control of determination process.

运用该不确定度评定方法对测定过程中关键环节的识别，将有助于检测人员重点关注关键环节的质量控制，以更为有效地提高检测工作的质量。

Starting from the spectral representation of quasi-particles, when Debye screening mass and finite width of the particle are taken as parameters into the spectral functions, we will get effective propagators of quarks and gluons, and then establish the effective perturbation theory which reflects directly collective effects in QGP, and analyse some thermodynamics problems about soft partons in QGP.

接着，从准粒子的谱表示出发，自洽地将Debye屏蔽质量和粒子的有限宽度作为参量纳入QGP中玻色型和费米型准粒子的谱函数，得到夸克胶子等离子体中胶子和夸克的有效传播子，进而建立了直接反映QGP集体效应的有效微扰论，藉此一般性地分析了夸克胶子等离子体中软粒子的有关热力学问题。

Statistical process quality control is a useful and effective means in product quality control of mechanical process.

统计过程质量控制方法是机械加工中产品质量控制常用而有效的手段之一。

Renli fully satisfies the requirements of Implementation of Surgical Implants Production. It's equipped with a complete set of equipments for vacuum casting processing line, such as vertical processing center, horizontal digital control lathe, digital control straight-cut automatic lathe, vertical digital control milling machine, four-column hydraulic pressure machine, a complete double-die automatic cold header, electric cutting machine,laser labeling machine, intellectual pneumatic labeling machine, bar code labeling machine, etc., totally over 130 sets of automatic and/or general equipments. It also owns 10,000 class clean rooms and relevant manufacturing and monitoring equipments. The sterile packaging

公司已完全具备《外科植入物生产实施细则》的要求，拥有真空铸造生产线的整套设备；拥有数控立式加工中心、卧式数控车、数控纵切自动车、立式数控铣、四柱液压机、双摸整机自动冷墩机、电火花切割机、激光打标机、智能气动打标机、条形码标签机等各类高精自动设备和通用设备 130 余台套；具备 10 万级洁净厂房和相应配套的生产和质量监控设备，可在封闭洁净厂房里操作外科植入物产品的无菌包装；具有满足生产全过程和最终成品的金属材料化学成份分析、力学性能检测、硬度检测、金相检测、粗糙度检测、表面缺陷检测、形位曲面检测等的理化检测仪器和设备，能有效控制产品的质量。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。