查询词典 system analysis

Usually, distribution networks operate in arborescence mode, so in the simulation of fault analysis the impact of faulty switch element on system reliability is apportioned to failure consequences of adjacent sections that connect to switch, and then an equivalent analytical model considering switch fault is proposed. Thus, not having to conduct the reliability analysis of switch element singly, the impact of switch element fault on system reliability can be calculated. Applying the proposed algorithm in RBTS-BDS6 system, RBTS-BUS4 system and actual medium-voltage distribution network to conduct reliability assessment, the results show that the proposed algorithm is superior in speed and possesses efficiency and engineering practicality.

配电网常具有树状运行特点，在故障解析模拟时，将开关元件故障对系统可靠性的影响分摊到连接开关的相邻分块的故障后果中，进而提出计及开关故障的可靠性等值解析模型，不需单独进行开关元件故障的可靠性分析即可计算其对系统可靠性的影响，应用该算法对RBTS-BUS6和RBTS-BUS4系统及实际中压配电网进行了可靠性评估，结果表明该算法有较明显的速度优势，具有高效性和工程实用性。

According to the controllability and observability theory of the system and based on the analysis of the redundancy of the components in the control system, the fault-tolerant condition in the failure system were discussed and used for a quantitative fault-tolerant analysis for the pressure control system in a pressurizer.

热力系统的控制是至关重要的，控制系统的性能直接影响热能动力装置的安全、正常运行，容错控制的目的就是为了提高控制系统的可靠性和安全性。在复杂控制系统的运行过程中，经常会随机地出现一些故障，如系统参数跳变故障、传感器故障、执行器故障等[1] 。

A computer-aided local transient flow property measuring system was developed using a high speed CCD camera coupled with optical fibers in order to study the Gas-liquid-solid three-phase jet loop reactors. SnO2 crystal films were orientally deposited on the alkoxysilane molecule-coated hydroxyl glass substrates so as to prepare surface-marked particles as the tracers. An image analysis system was established to identify different phases. Stroboscopic photography was utilized to extend the measure range. The developed measuring and analysis system was capable of determining accurately the local transient flow property in a G-L-S jet loop reactor. Based on the above system, local transient flow properties of gas, liquid, and solid phase were measured and studied the influences of fluid property, operation and configuration parameters on the reactor.

以气液固三相喷射环流反应器为研究对象，将高速CCD和光纤束耦合制成局部瞬态流动特性微机数据采集及图象处理系统，利用MPS硅烷分子在带有羟基的玻璃基底上的自组装引导SnO2晶态膜层在功能化表面上进行沉积，以获得表面标记的示踪粒子，解决图象处理技术与相的识别的问题，利用频闪技术拓展了测量上限，得到可以准确测定气液固三相喷射环流反应器中局部瞬态流动特性的测试系统；采用上述测试技术进行喷射环流反应器中局部气相、液相与固相瞬态流动特性的实验研究，并考察物性参数、操作参数与结构参数的影响规律。

objective to study the correlation among psychosomatic health factors,depression,anxiety and sleep status in college students,to analyze influence factors in sleep status.methods with questionnaire opened in-vestigation,200college students were evaluated using cornell medical index,self-rating depression,self-rating anxiety scaleand pittsburgh sleep quality index.stepwise regression analysis was used.re-sults total score of sds was35.55±7.8,and sas was0.48±0.9.each score of cmi was higher than normal range,the highest was digestion system,next was respiration system,then,fatigue,eyes and ears,anxiety,sensitivity,tension,maladjustment in turn.total average score of psqi was6.32±3.6,ordinary sleep were115cases（57.5%）,good and bad sleep were42（21%）and43（21.5%）cases respectively.influence factors in total score of psqi were sas,cmi,respiration system,anxiety,past healthy,digestion system,fatigue,sensitivity,sds and malad-justment in turn,using stepwise regression analysis,total score of psqi as dependent variable,each factor score of cmi,total score of sds and sas as independent variables.conclusion problems of psychosomatic health,anxiety and depression could both lead to sleep disorder.

目的 研究在校大学生心身健康因素及抑郁焦虑等与睡眠状况的相关性，并对影响睡眠状况的有关因素进行分析。方法采用问卷式的开放性研究，对在校的200名大学生进行康奈尔心身健康问卷、自评抑郁量表、焦虑自评量表和匹兹堡睡眠质量量表的测定，采用逐步回归分析方法。结果 sds总分为35.55±7.8、sas总分为0.48±0.9，cmi评分：消化系统最为严重评分为2.52，其次为呼吸系统、疲劳感、眼和耳、焦虑、敏感、紧张、不适应等，评分均高于正常常模。psqi总均分为6.32±3.6，一般睡眠有115例占57.5%，睡眠质量较好42例占21.0%，睡眠质量较差43例占21.5%。评估对睡眠状况的影响程度，以psqi总分为因变量，选择cmi各因子分和sds、sas总分作为自变量，进行多因素逐步回归分析，进入方程的因素依据标准化偏回归系数，影响psqi总分的因素依次为sas总分、cmi总分、呼吸系统、焦虑、既往健康、消化系统、疲劳感、敏感、sds总分、不适应（f=226.8；p.01；r=0.73）。结论心身健康问题和焦虑抑郁可导致睡眠障碍。

A computer-aided local transient flow property measuring system was developed using a high speed CCD camera coupled with optical fibers in order to study the Gas-liquid-solid three-phase jet loop reactors. SnO2 crystal films were orientally deposited on the alkoxysilane molecule-coated hydroxyl glass substrates so as to prepare surface-marked particles as the tracers. An image analysis system was established to identify different phases. Stroboscopic photography was utilized to extend the measure range. The developed measuring and analysis system was capable of determining accurately the local transient flow property in a G-L-S jet loop reactor. Based on the above system, local transient flow properties of gas, liquid, and solid phase were measured and studied the influences of fluid property, operation and configuration parameters on the reactor.

中文摘要：以气液固三相喷射环流反应器为研究对象，将高速CCD和光纤束耦合制成局部瞬态流动特性微机数据采集及图象处理系统，利用MPS硅烷分子在带有羟基的玻璃基底上的自组装引导SnO2晶态膜层在功能化表面上进行沉积，以获得表面标记的示踪粒子，解决图象处理技术与相的识别的问题，利用频闪技术拓展了测量上限，得到可以准确测定气液固三相喷射环流反应器中局部瞬态流动特性的测试系统；采用上述测试技术进行喷射环流反应器中局部气相、液相与固相瞬态流动特性的实验研究，并考察物性参数、操作参数与结构参数的影响规律。

The realized conditions of the construction industry supply chain synergy are put forward through the analysis of the construction industry vertical supply chain synergy using the method of evolutionary game (taking the construction suppliers and the general contractors for example). With the horizontal coordination problems in the construction market put forward, the synergetic mechanisms among the government, industry associations, market players and the rules of the market in the construction market are analyzed. The existed technology-economic system coordinated model is improved and the synergetic degree model of construction industry system itself is set up. The conclusion is drawn that the economic benefit indicators and technology indicators of Chinese construction industry system synergy low and the two must be synergized through the analysis of the synergetic degree of the economic benefit indicators and technology indicators of the construction industry system.

5对建筑业纵向供应链协同(以建筑供应商和总承包商为例)进行了演化博弈分析，提出了建筑业供应链协同的实现条件；分析了建筑市场中政府、行业协会、市场主体、市场规则之间的协同机制；对已有的科技——经济系统协调模型进行改进，形成了建筑业系统本身的协同度模型，并对建筑业系统的经济效益和科技指标的协同度进行分析，得出我国目前建筑业系统的经济效益指标和科技指标的协同度低，必须协同二者之间的关系。

For the first time, a screw pile and pile driver system for preventing flood and rushing to deal with an emergency was manufactured. The screw piles of the system is different from screw drills used to sap, and it doesn't push soils out. Analyses, including the screw pile's structural strength analysis and the screw blade's welding analysis, were done by ANSYS, which showed that the screw pile's structural strength is enough and that the distort of the screw blade is small. Testing on the screw pile and pile driver system showed that the system performed stably and could meet the need of preventing flood and rushing to deal with an emergency. A mechanics model of interaction of a screw pile and soil was built, and expressions of torque of screw pile's cylindrical part on the condition of screw pile's crew part being driven into soil fully were gained, then the relation of the torque with screw pitch and out diameter of cylinder, which shows the torque decreases with the screw pitch increasing, and that the torque increases with the out diameter of cylinder increasing, which was according with the experiments of the screw pile's being driven into soils, and thus a screw pile with the best structure was chosen. Experiments of bionic surface showed that, on the condition of certain pressure on the surface, the protruding bionic surface can not reduce adhesion and resistance and that the corrugated bionic surface can reduce adhesion and resistance. An orthogonal experiment of the corrugated bionic surface was done with the factors including the width of protrusion, the space between two protrusions, the trolley's velocity and the vertical surface pressure and with the surface frictional coefficient as the experimental target, and some inclusions were drawn that the best combination of the factors was acquired and that the width of protrusion affected the surface frictional coefficient remarkably.

研制了防汛抢险螺旋桩机系统，提高了沉桩作业效率；利用ANSYS对桩体进行整体结构强度分析以及螺旋叶片的焊接分析，表明桩体结构强度足够，焊接过程中，螺旋叶片的变形小；对整个螺旋桩机系统进行试验，表明该系统性能可靠，工作稳定，作业效率高，能够满足防汛抢险沉桩作业基本需要；建立了螺旋桩桩土作用力学模型，得出螺旋桩沉桩过程中螺旋桩螺旋部分完全进入土体时螺旋桩圆柱部分所受扭矩以及扭矩与防汛抢险螺旋桩的螺旋导程和圆柱外径的关系曲线，表明螺旋桩螺旋部分完全进入土体时螺旋桩圆柱部分所受扭矩随着螺旋导程的增大而减小，随着圆柱外径的增大而增大，这与螺旋桩沉桩试验结论相符合，据此优选出最佳结构的螺旋桩；仿生曲面试验表明，尺寸较小的球冠突起型仿生曲面在一定压力作用下未能起到减粘降阻的作用，而尺寸较大的波纹型仿生曲面相对平板具有一定的减粘降阻作用；以波纹型仿生曲面突起宽度、波纹型仿生曲面两突起之间间距、台车的牵引速度以及叶片表面垂直载荷为因素，以曲面摩擦系数试验指标进行正交试验，寻求出在一定试验条件下最佳因素水平组合；波纹型仿生曲面突起宽度在本试验条件下对曲面摩擦系数影响显著，而其它几个因素对曲面摩擦系数影响均不显著；通过波纹型仿生曲面突起宽度和台车牵引速度的单因素试验，表明曲面摩擦系数随着仿生曲面突起宽度的增大而减小，而随着台车牵引速度的变化基本保持不变，和正交试验结果保持一致。

A sequential system is based on a valid property right system. The results of both general theoritic analysis and positive analysis show that the issue of our nation?s credit system construction should give consideration to property right system construction.

一个有序的信用体系是建立在一个有效产权制度的基础之上的，无论是一般理论分析还是实证分析的结果均表明：思考我国的信用制度建设问题决不能脱离产权制度的构建

This article studies the domestic and foreign correlation traveling spatial structure theory in the system in the foundation, through to the region tourist resources spatial structure system, the traveling market spatial structure system and the traveling transportation spatial structure system carries on the concrete analysis, constructs according to the analysis result to the Yulin territory traveling spatial structure, in under the science development view instruction, constructs the Yulin territory "wholeheartedly area three pieces" the spatial structure, and proposed specifically further promotes take the Yulin city as the center, exerts oneself makes "the desert character and style traveling piece, the borderland character and style traveling piece, the loess character and style traveling piece, along the yellow traveling belt" traveling space layout, and supports tourist area to each piece areaCarries on the elaboration;In the traveling space development, has determined "wholeheartedly third mate three principal axis two inferior spool threads" the spatial development pattern;Finally, this article from the ecology protection, the historical culture protection as well as the policy guaranteed the aspect proposed the Yulin territory travels the sustainable development realization way.

本文在系统研究国内外相关旅游空间结构理论的基础上，通过对区域旅游资源空间结构体系、旅游市场空间结构体系和旅游交通空间结构体系进行具体分析，根据分析结果对榆林市域旅游空间结构予以构建，在科学发展观的指导下，构建榆林市域&一心三片一带&空间结构，并具体提出进一步提升以榆林城区为中心，着力打造&大漠风情旅游片、塞上风情旅游片、黄土风情旅游片、沿黄旅游带&的旅游空间布局，并对旅游分区进行了建构；在旅游空间拓展上，确定了&一心三副三条主轴线两条次轴线&的空间发展格局；最后，本文从生态保护、历史文化保护以及政策保证等方面提出榆林市域旅游可持续发展的实现途径。

Third chapter illustrate the design scheme for justification development system, amalgamation steer the argumentum;And code design in the detailed design sum the database design of whole system;Recommended the detailed design information of sum of the shuttering cake structure of the aetioporphyrin system;Analyzed the library to manage the system's appliance demand, according to the database design theory proptosis of one-step and one-step earth joint system demand manual, local ER general view, overall situation ER general view, system relation modal, leaven the modal;Arrangement in parallel proptosis the valve key source of the said system code in the procedure the amalgamation commit the interpretation, justification.

第三章说明开发系统的设计方案，并进行论证；以及详细设计中的代码设计和整个系统的数据库设计；介绍了本系统的模块结构和详细的设计信息；分析了图书馆管理系统的应用需求，按照数据库设计理论一步一步地给出了系统需求说明书、局部ER图、全局ER图、系统关系模式，子模式；并列出了该系统的关键源程序中的代码并做解释、说明。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！