查询词典 subsystems

College of Guandong Business, Guanzhou 510320, China）Abstract: Since large-scale vertical quench furnace is voluminous, whose working condition is a typically complex process with distributed parameter, nonlinear, multi-inputs/multi-outputs, close coupled variables, etc, dynamically decoupling control algorithm of temperature distributed parameter system in the furnace was presented, by which the whole system was decoupled to several subsystems and the implementation of controller was simplified. With finite difference approximation, the space and time step size was solved to ensure the convergency of finite difference approximation. After decoupling, the subsystems were controlled with self-learning PID control algorithm. The results show that the temperature control precision and homogeneity are improved; the overshoot and process in temperature rising period are reduced simultaneity.

摘 要：针对大型立式淬火炉体积庞大，工况复杂，炉内温度分布呈本征非均匀性，具有多输入/多输出、非线性、强耦合等特性，难以实现炉内温度高精度高均匀性控制目标等问题，提出一种温度分布参数系统动态解耦控制算法，其原理是：采用有限维逼近方法将对象解耦为多个独立的子系统，简化控制器的实现过程；通过分析有限维逼近方法的收敛性，获得保证收敛性的空间和时间步长应满足的条件；解耦后的子系统采用自学习PID控制算法，实现炉内温度高精度和高均匀性控制以及升温过程的快速性和小超调。

Visual Rice Growth Models system represented an effort to design crop modeling software with object-oriented paradigm and to organize classes in system with model-document-view architecture. Firstly, the crop-environment system was abstracted as many subsystems and physiological processes with object-oriented paradigm while many classes were established to simulate the behaviors of these subsystems and physiological processes. In VRGM, the document-view architecture in Visual C++ was extended as model-document-view architecture for agricultural integrated system. In the model-document-view architecture, document gets the final simulation results by manipulating the models classes and acts as a communicating intermediacy between model and view. Views display the simulation results and translate users' operation and data entering to document. The architecture separates the domain models, data management and user interface.

中文题名可视水稻生长模型与智能栽培专家系统的研制副题名外文题名 Studies on visual rice growth models and cultivation expert system of computational intelligence 论文作者米湘成导师邹应斌研究员学科专业作物栽培学与耕作学研究领域\研究方向作物模拟与专家系统学位级别博士学位授予单位湖南农业大学学位授予日期2001 论文页码总数64页关键词作物生长模拟生长模型水稻馆藏号BSLW /2003 /S126 /2 本研究系国家"九五"攻关项目"水稻大面积高产综合配套技术研究与示范"课题的子专题，并结合水稻高产栽培技术资料和水稻专家的知识、经验以及科研成果，研制成了可视水稻生长模型(Visual Rice Growth Models，VRGM)及水稻高产栽培专家系统，并在此基础上进一步利用人工神经网络模型、模糊逻辑技术和田间栽培试验，对生长模型和专家系统进行了改进。

Aeroflex Launches Complete Solution for RF Parametric Test of Wireless Subsystems, including LTEAeroflex announced the launch of the 7000 Series Vector Analyzer Generator, a single, fully integrated RF parametric test system for RF test of wireless components and subsystems. The 7000 Series combines both vector signal generation and vector signal analysis in a single box, providing an integrated approach to measurements for complex wireless standards, including LTE.

Aeroflex宣布推出7000系列向量分析仪产生器，是单一、集成之RF参数测试系统，可用于无线零组件和子系统的RF测试。7000系列在单一装置中结合了向量讯号产生和向量讯号分析功能，提供一个集成的方案来测量包括LTE等复杂的无线电标准。

Based on the summary, this paper proposes the urban traffic information system architecture project suitable for the administerial management situation of China. The UTISAP includes a traffic information center, eight subsystems and two databases. Eight subsystems comprise traffic management, ETC, TFGS, traffic information service, GIS, EMS, CVOS and AHS. Two databases comprise the aspects of road traffic management and vehicles management. And the traffic information center is the core.

在总结了国外近年来有关交通信息系统的开发和研究成果后，结合中国在行政管理方面的实际情况，提出了城市交通信息系统的结构方案：一个核心即交通信息中心，交通管理、电子收费、交通诱导、交通信息服务、地理信息、紧急救援、营运车辆管理、车辆安全辅助驾驶八个子系统以及道路交通管理和车辆管理两个数据库，阐述了各子系统的功能。

According to the operator procedure, jig's two sections are divided into three subsystems to control. The three subsystems are Feeder－Rejects Discharge－Downscreen Water Subsystem, Wind Control Subsystem which is based on the layer looseness degree and Middlings Discharge Control Subsystem which is based on the fine coal ash content.

论文依据实际生产过程人工操作方式，将一般跳汰机的二段分为三个子系统来进行控制，三个子系统是矸石段的给料、排矸石、筛下顶水子系统，以床层松散度为目标的总风量控制系统，中煤段的以精煤灰分为目标的排中煤控制系统。

Aiming at a class of complex electromechanical systems, such as 4-high or multi-high cold mills and continual mills, we firstly construct mathematical models of every subsystems by means of structural principle modeling method; nextly, get the overall mathematical model of electromechanical drive system by joining together these subsystems'models according to coupling variables and parameters; we finally simplify the overall model according to time-scale principle which can retain main eigenvalues and significant state variables, and obtain a practical mathematical model of complex electromechanical system. By simulating the CM04 temper mill's model constructed by above-mentioned method, we test and verify that the modeling method is effective and practical. The study analyzes and researches the electromechanical coupling facts and acting laws existing in complex electromechanical system.

提出了系统的总体测试方案，设计了高保真度的信号隔离和缓冲器，解决了从大功率、大电流复杂机电系统主回路中提取真实谐波分量、而又能不影响系统正常运行的难题；发现了谐波电流对平整机工作状态的影响规律；确认谐波电流是可能引起平整机工况奇异、产生机电耦合振动、导致带材产品表面出现明暗振纹的一个因素；提出了一种多相整流电路谐波电流的分析计算方法，用该方法对平整机三相桥式整流供电电路的谐波分量进行了理论分析和计算，计算结果与实测结果能得到相互验证，说明该方法是可行的，实测结果是可靠的。

In the electricity market environment, the operation of areal subsystems is comparatively independent and the parameters of a subsystem are relatively nontransparent to other subsystems.

在电力市场条件下，区域子系统运行具有相对的独立性、系统数据具有一定的不透明性。

To solve the nonlinear attitude control problem of a class of spacecrafts, the strongly coupled dynamics model is decomposed into some subsystems and the coupling between the subsystems, unmodelled dynamics and exterior disturbances are regarded as the uncertainty of the system.

引 言空间飞行器的姿态控制系统是一个具有参数摄动和外来干扰的非线性系统。滑模控制(Slidingmode control，SMC)对系统参数的不确定性和干扰具有较强的鲁棒性[1，2 ] ，近来越来越多地被用于对空间飞行器的控制，但滑模控制的输出存在高频抖振。

Some referential conclusions were drawn that the subsystems of forest resources and environment lie in weak sustainable development state expect the economy subsystem stands in a below-medium sustainable development, and the coordination development degree of the three subsystems is obviously low. So the countermeasures were proposed for Jiangsu province.

本文应用基于模糊一致矩阵的层次分析法得出了如下结论：江苏省FEES处于弱可持续发展状态，除了经济子系统处于中等偏弱的持续发展状态外，森林资源子系统、环境子系统也处于弱持续发展水平，三个子系统之间的协调发展度也明显不足。

By employing the Jordan-Wigner transformation and a modified mean field method, we are able to determine its ground-state quantum phase diagram approximately. The chapter IV is the main part of this Thesis. It contains the main innovations in our work. We propose and study in detail a S=1 Ising chain with the interplay of single-ion anisotropy and dimerization. The main results and innovations are the following: We show that the total number of the zero-component of spins at each site is a conserved quantity. This quantity, which may intuitively called as hole's quantum number, is hidden in the system. We show further that the hole's number in the ground-state is zero; By using the Jordan-Wigner transformation, we map this model onto a series of subsystems described by the spin 1/2 dimerized transverse Ising model. We solve the subsystems exactly, by presenting the exact wave functions and spectra;We show that this system exhibits a series of quantum phase transitions by varying the dimerization strength. We determine the quantum critical points exactly. We also show that the criticality is the same as that of the uniform S = 1/2 transverse Ising chain.

第四章是本文的重点及主要创新内容，我们具体研究了自旋为1的在横向单离子晶格场中的一维二聚化Ising链，我们得到的主要结果和创新之处是：(1)证明了这一模型具有一种隐藏的对称性，即自旋第三分量为零的格点数目是一个守恒量，并证明基态出现在空穴数目为零的子空间中；(2)利用Jordan-Wigner 变换将此模型变换到一系列自旋为1/2的横磁场中的二聚化Ising 模型，并给出了相应严格的波函数及能谱；(3)我们发现系统的基态随着二聚化强度的变化将呈现出一系列量子相变，我们得到了量子临界点的精确位置，并证明其临界性质与自旋为1/2的横磁场中的均匀Ising 链中的临界行为属于同一普适类。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。