查询词典 measure analysis

The plasma ignition threshold of metal is got through experimental and numerical study. The vapour and plasma ignition times of the target are got based on the equation of heat conduction and cascade model. We suppose that the plasma is ignited when generations of new electrons are born in vapour generation time. The influence of temperature on the thermodynamics and optics parameters of material also have been considered in the model. The resulting theory has good agreement with the experiment and overseas report. A blade method to measure the laser spot is given in this paper with validation and error analysis. The plasma threshold of metals in atmosphere and water ambients both are diagnosed with the light deflection and piezoelectric transducer. A Q-switched pulsed Nd:YAG laser operating at infrared (1064nm), visible(532nm) and ultraviolet (355nm) wavelengths has been used. Al、Fe、Cu are used as targets and get a similar results with both method. Theoretical and experimental analyses are applied on the influence of wavelength on the threshold have been done, both of which have shown that the plasma threshold of metals decrease as the laser wavelength increases; The plasma threshold of metals are higher in water than in air and the pressure of the shock wave in water is five times higher than in air .

从热传导方程和雪崩电离机制出发，假设当电子增值210倍时，考虑了温度对材料热力学和光学参数的影响时，得到了气化和等离子体点燃的时间，利用该模型进行计算得到的结果与国内外报道及自行通过实验测得的阈值基本一致；提出了利用刀刃法测量激光光斑面积的方法，并通过实验进行了验证和误差分析；利用光偏转装置和压电换能器分别对空气和水中金属等离子体点燃阈值进行了实验诊断，激光器均为调Q－YAG激光器（波长1064nm，532nm，355nm，脉宽10ns），靶材分别为Al、Fe和Cu，两种测试方法得到的等离子体点燃阈值基本一致；本文从实验和理论计算两个方面讨论了波长对等离子体点燃阈值的影响，均得到了等离子体点燃阈值随著波长的增加而减小的结论；对空气中和水中不同环境下金属等离子体的点燃阈值进行了比较研究，得到了金属在水中的等离子体点燃阈值比空气中的大，且水中产生的冲击波的压强是空气中的5倍左右的结论。

This thesis will pass the detailed analysis, taking safe mode of electronic commerce as the main line, connecting get up, draw lessons from domestic and international to the electronic commerces advanced technique and experiences of safe mode research, introduce the electronic commerce of the Donguan present condition of the safe mode with the present condition of the our country electronic commerce and the present condition of the abroads existent problem, then usher in to resolve the related and safe technique of safe mode problem of electronic commerce, negotiate, mode and strategy, take this as the core, discuss the electronic commerce safe mode problem of the Dongugan to resolve the measure and paths.

本论文将通过详细的分析，以电子商务安全模式为主线，将我国电子商务的现状和国外的现状连接起来，借鉴国内外对电子商务安全模式研究的先进技术和经验，介绍东莞市电子商务安全模式的现状及存在的问题，再引进解决电子商务安全模式问题的相关安全技术、协议、模式和策略，以此为核心，论述东莞市电子商务安全模式问题的解决措施和途径。

Base on the analysis of the grating linear displacement measurement theory,t he measure errors especially the subdivision error of the grating scale,this paper focuses on the theory of switch and merge of dual grating scales'signals,builds the design criteria of high speed high precision displacement measurement by using dual grating sales,designs the switch picking reference with high precision and fast switch and merge method,analyses the errors brought in by switch and merge of the duals grating scales.

针对光栅尺的电子细分信号具有细分误差的特性，本文提出了对莫尔条纹信号不细分的方法以提高双光栅尺信号切换合成值的精度。经过对双光栅计数切换基准、切换与合成特征和规律的探讨，本文设计了实现双光栅尺双重测量、计数值切换合成法的硬件电路，主要通过可编程芯片FPGA，设计了双光栅尺信号处理的各电路模块，如双光栅尺信号四倍频辨向模块、速度判断模块、切换模块、计数值合成处理模块。

The equipment can not only measure the dimension of wheel, but also check out the complex wheel face analysis, such as scrape, diagnosis of fault.

该装置不仅能够迅速检测出轮对外形尺寸，而且能够解决目前最为困扰的检测踏面状况的问题，即能够精确拟合出踏面擦伤和剥离，及时诊断出轮对故障。

In This paper, it is discussed that how to establish risk-analysis indexes system of flood discharge structures for concrete dam based on lack of monitoring data, and how to measure the flood discharge risk furtherly.

因此，本文就如何在监测资料缺乏的情况下建立混凝土大坝的风险指标体系进行了探讨，重点对泄洪系统中的水力风险进行了研究。

In paper, it expatiates the connotation , class and function of the legal consciousness of the people in the content, historic reviewing and important meaning of managing state affair according to the laws. From the different angel , it do some thorough fondues analysis to the current situation of the legal consciousness of our country抯 people. Then it bring forward some measure of pertinence in the culturing and boosting the legal consciousness of the people.

本文从依法治国方略的涵义、历史回顾及重要意义的论述入手，又对公民法律意识的内涵、分类及功能作以阐述，在从不同角度对我国当前的公民法律意识现状进行描述的基础上，做出了深入具体的成因分析，并进而有针对性地提出了培养与提高公民法律意识的若干措施。

The truth of the measuring method is established by precision and feasibility analysis.The restriction of using this method to measure surfaces of roller gear cam is discussed, and the next research direction is confirmed.

分析了这种弧面分度凸轮测量方法的局限性，即该方法只适于对已知参数的弧面分度凸轮进行精度检验；如果要测量参数未知的凸轮，反求参数，这种方法是不适用的；针对该方法的局限性确定了下一步的研究方向。

This article has selected from 1995 - 2007 13 year data, since has been our country stable agricultural policy data, reliable, obtains the grain yield and the farm investments, the crops sown area, the farm price, the primary industry working population, the countryside electricity consumption, the agricultural chemical fertilizer employment quantity, the disaster area, the yield per unit of area, the effective irrigated area finally through the empirical analysis, based on this and gives the comment and the measure.

本文选取了从1995年—2007年13年的数据，都是我国稳定农业政策以来的数据，可靠性强，最后通过实证分析得出粮食产量与农业投资、农作物播种面积、农产品价格、第一产业从业人口、农村用电量、农业化肥施用量、成灾面积、单位面积产量、有效灌溉面积，并在此基础上提出意见和措施。

According to the work principle, mechanical structure characteristics of the rope grippers prototype and given requirement of stopping the elevator, the measure project of the elevator up-direction overspeed protection device is proposed, based on the dynamics analysis of the rope gripper.

根据电梯上行超速保护装置夹绳器样机的工作原理和结构特点，以及电梯制动要求，在对夹绳器的动力学分析基础上，本课题提出了电梯上行超速保护装置的检测方案。

Methods: The expression of P21 and fasL in proliferating and involuting human henmangioma and normal skin tissues was detected and compared by using immunohistochemistry. Image analysis was applied to measure the expression level of P21 and fasL in different stages of human hemangioma and in normal skin tissues.

采用免疫组化SP法检测人血管瘤组织中增生期、退化期及正常皮肤组织血管内皮细胞中P21ras、与FasL的表达水平，利用计算机成像分析系统检测不同时期皮肤血管瘤与正常皮肤组织P21ras、与FasL的平均光密度及其阳性面积率。

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。