查询词典 according as

With the investigation of the domestic and foreign literature systematically, the bases on the domestic and foreign present research and the comprehensive utilizations of the various knowledge of fluid mechanics in porous medium, reservoir engineering, mathematical physics, perforation completion, numerical simulation and so on, this article takes numerical simulation of gas reservoir of water solubility as the research aim which has completed following research works and obtained the corresponding research results: it analyzes the nature of the Water-soluble gas and formation water as well as the influent factors of the solubility through the study of massive materials; It establishes mathematical models three-dimension, the dual medium, the gas-water phase through the way of finite difference in the migration of water-soluble gas, which describes the entire process of release, migration and production in formation, where it considered the problems of variable bubble point; According to the numerical models of gas reservoir of water solubility it provides solution procedure that based on black oil model; It discovers that there will obtain the good effects in the lowly speed of development through simulation; the reinjection of formation water may largely enhance the produce degree of water-soluble gas when we consider reinjection in simulator; It considered the influence of perforated completion on development so as to increase the simulator"s versatility, It discovers that the simulator may reflect the conditions of development when we exanimate he simulator"s reliability with the empirical datum.

本文以水溶性气藏数值模拟研究为研究目标，在系统调研国内外文献、深入分析国内外研究现状的基础上，综合利用渗流力学、油气藏工程、数学物理方法、射孔完井以及数值模拟理论等多方面的知识，完成了以下研究工作并取得相应的研究成果；①通过对大量的资料调研，分析了水溶气、地层水性质、储层地质性质以及影响气体在水中溶解度的因素。②考虑到由于高压产生的大量水力裂缝，采用有限差分方法建立水溶气运移的三维、双重介质、气-水两相全隐式数学模型，该模型描述了水溶气在地层中的释放、运移和采出的整个过程。③在原有黑油模型的基础上，根据水溶性气藏数值模型编制了该数值模型的求解程序，该程序可以求解单重、双重介质两种情况。④通过模拟不同开采速度对水溶气开发效果的影响，发现开采速度较慢的时候可以取得较好的开采效果。⑤在模拟器中考虑了注水对水溶性气藏开发的影响，地层水回注可以大幅度提高水溶气的采出程度。⑥为增加模拟器的通用性，在模拟器中考虑了射孔完井方式对开采的影响。⑦检验模拟器计算的可靠性，发现在使用实验数据对水溶性气藏进行模拟时，模拟器可以很好的反映气藏开发的状态。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

Pulsars evolving under such process are stable, and according to the magnetic field strength, this process will last as long as hundreds of years or as short as several minutes.

在这些过程中，脉冲星是稳定的，根据磁场强度的不同，这种行为会持续长则百年或者短则数分钟。

Based on the analysis given above,I use Delphi6 of Borland Co. in U.S.A as the developing tools for front-end development,as it has so many virtues such as good flexibility,intact Object-Oriented Language,the fastest compiler in today's world ,the leading database technology,etc. The specific development process is as follows.First set up the system phototype within short time,and then iterate the initial phototype according to the concretization of the user's demand,revise and improve the phototype constantly until forming a satisfying feasible system.

经过分析如此情况，开发该系统前台工具使用美国Borland公司的Delphi6，利用其弹性可重复利用的完整的面向对象程序语言(Object-Oriented Language)、当今世界上最快的编辑器、最为领先的数据库技术，首先在短时间内建立系统应用原型，然后，对初始原型系统进行需求迭代，不断修正和改进，直到形成用户满意的可行系统。

The D rama again － as , for instance , the finest of Shakespeare's plays in England , and all leading Athenian plays in the noontide of the Attic stage － operated as a literature on the public mind, and were (according to the strictest letter of that term) published through the audiences that witnessed their representation some time before they were published as things to be read ; and they were published in this scenical mode of publication with much more effect than they could have had as books during ages of costly copying or of costly printing.

该形式的文学并没有获得图书馆的庇护，哪怕是百分之一的保护。另一个例子――戏剧――包括在英格兰上演的莎士比亚最好的戏剧以及引导雅典潮流的戏剧，作为一种对公众产生广泛影响的文学形式，在它们还未被作为正式的文学形式印刷出来之前，已经在观众头脑中留下深刻印象了。这在当时复印或印刷书籍还相当奢侈的时代来说，已是一种最为有效的出版了。

The Drama again—as, for instance, the finest of Shakespeare's plays in England, and all leading Athenian plays in the noontide of the Attic stage—operated as a literature on the public mind, and were (according to the strictest letter of that term) published through the audiences that witnessed their representation some time before they were published as things to be read; and they were published in this scenical mode of publication with much more effect than they could have had as books during ages of costly copying or of costly printing.

另如剧作品，最好的英国莎士比亚剧作，所有主要的在雅舞台上上演过的雅典剧作，在大众看来，都是一种文学，并且，它们都在大众面前公演过，有时，人们在这些作品出版前就目睹了基于这些作品的演出。在当时那个复印、印刷费昂贵的年代里，以舞台形式呈现的作品往往能比它们以书的形式出版取得更大效应。

The effect of the natural enemies were assessed according to the analysis, which revealed that the parasitoids played more significant role than the predators, and that Citrostichus phyllocnistoides which had the closest synchrony and sympatry with citrus leafminer P.citrella, should be considered as dominant natural enemy, and be protected and utilized to control the citrus leafminer. Wide niche and distribution as Orius sauteri has, its narrow overlap showed the less close sympatry and synchrony as well as impossibility to control the prey.

寄生性天敌群子强于捕食性天敌群子，表明在自然环境中寄生性天敌群子对桔潜蛾的控制作用强；捕食性天敌小花蝽Orius sauteri虽然食谱生态位宽，但生态位重叠却小，说明这种天敌尽管分布广泛，可在时间和空间上没能有效"跟随"害虫的发生，对害虫控制作用不大；寄生性天敌短腹桔啮小蜂Citrostichus phyllocnistoides与桔潜蛾在时间上的同步性和空间上的同域性均优于其它天敌，为优势天敌，应加以保护和利用。

Those who are directly or indirectly involved in the IS are generally referred to as users, designers, managers, system maintainers, representatives of labor unions, etc. Organizations involved can be internal organizations or departments, as well as external control bodies. In this research, we focused on ISM at universities. The stakeholders involved in such university systems were previously identified as the actors of ISM according to Zachman's specification (See chapter 4 paragraph 4.3). We distinguished Managers, Designers/Builders, Users and Maintainers.

直接或者间接介入IS那些通常被归之为用户，设计者，经理，系统维持者，工会联合的代表，等等组织介入能是以及外部高级控制手段躯体内部组织或者部门在这研究中我们被在大学聚焦对准ISM牵扯到这样大学系统赌金保管人是被从前当根据Zachman's规格说明主义的演员看见第4章给4.3分段时，辨认出我们辨认经理，设计者//建造者，用户和维持者。

Basically, the contents of this paper are organized as follows: Firstly, it is interpreted that the technical identifications of higher education and economic growth and the relative theories such as human capital and new economic growth, which can make theatric basis for the further empirical study. After that, the paper is to construct a couple of index systems to depict higher education development and economic growth respectively. At the end of this paper, it will adopt the dynamic econometric models such as Granger causality test, co-integration test, VAR and VECM model, to evaluate the co-relations between the two systems. According to the empirical study, the paper comes to the conclusions as follows:(1) There really exists one-way causality between the economic growth and the higher education, i.e.

本文内容基本安排如下：首先本文阐述经济增长和高等教育发展的内涵及其相关的理论，为本文的实证研究奠定理论基础；然后构建高等教育发展和经济增长两个指标体系，以描述高等教育发展和经济增长两个多因素相互作用的复杂过程；最后本文以1978-2003年的时间序列数据为数据资源，运用Granger 因果检验、协整检验、VAR 模型以其向量误差纠正模型VECM 等动态经济计量模型进行实证分析。

According to the logos of Socrates, Plato, Aristotle, and Hegel and the advanced teaching theory of Humboldt, Newman, Eliot, Huxley, Hutchins, and Kerr, along with the transformation logic of entrepreneurship education from perceptual stage of cognition to knowability and from knowability to rationality, the"essential research points"of the logos of entrepreneurship education are as the followings:"spiritualism paradigm"of subject arousal as inner core,"epistemology structure"of subject cultivation as intermediary, and"ethological requirement"of subject realization as object. These three elements constitute the main stream of logos of entrepreneurship education.

根据苏格拉底、柏拉图、亚里士多德、黑格尔的理念论和洪堡、纽曼、艾略特、赫胥黎、赫钦斯、克尔的高等教育理念，沿着感性的创业教育→知性的创业教育→理性的创业教育的逻辑，本研究将创业教育理念体系的&研究纲领&设定为：以激发主体性的&精神学范式&为内核，以主体性培养的&知识论结构&为中介，以主体性实现的&行为学要求&为目标，它们共同构成创业教育理念体系的主干。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。