查询词典 knowledge base system

The capacity level of an expert system is influenced directly by the abundance of knowledge in the knowledge base, and the storage and management models of the knowledge determine the reasoning efficiency of the expert system.

O引言知识库是知识的存储机构，用于存储领域内的原理性知识、专家的经验性知识和有关的事实等，以及为推理机提供求解问题所需的知识，它存储的知识量的丰富程度直接影响着该专家系统的智能水平。

Based on analysing the respective characteristics of regular PID controller in trational control theory and fuzzy logical controller in intelligent control theory, the idea and technique of expert system is introduced to develop a novel kind of hybrid intelligent controller. It can coordinate two kinds of control algorithms and tune the control parameters on-line for different working zones of the controlled process.(3) The hybrid knowledge expression model, which combines discrete state space model, fuzzy relational model and rule base model, is proposed based on analysing the characteristics of all kinds of knowledge expression models. The knowledge of the controlled process in different aspects can be expressed resonably by it. Based on the model mentioned above, the related optimization strategy for complex system is developed.

本文的主要贡献体现在：（1）以炼油厂的催化裂化装置和钢铁联合企业的大型焦炉装置两个典型的复杂工业过程为例，分析了工业大系统的许多不易控制的特性，并归纳了其中的几个典型特征；（2）针对经典控制理论中的常规PID调节器和智能控制技术中的模糊逻辑控制器各自的特点，通过引入专家系统的思想和方法，开发了一类混合式专家控制器，它同时具备在线协调两种不同控制规律和自动学习控制规则的能力；（3）通过分析各种知识表达模型的特点，提出了一类包括离散状态空间模型、模糊关系模型和规则基模型在内的混合知识表达模型，它能对过程知识在各个不同侧面给予合理的描述。

Aiming at the faults inference network of AM500 coal minning machine this paper discusses "Rule_skeleton+rule_body" knowledge representation method of faults diagnoses expert system for coal minning machine and the interior structure of its knowledge base as well as the design of knowledge acquisition of the expert system.

以A M500 采煤机故障推理网络为对象，讨论采煤机故障诊断专家系统中&规则架＋规则体&的知识表示方法及其知识库内部结构，以及专家系统的知识获取设计。

Disjunction normal form theorem in the modal logic system S5 is inductively proved, which can be used for representing complex modal formulas by means of conjunction and disjunction of simplest modal formulas with depth at most 1 in the system S5. As application, it is proved that a knowledge base could answer KB-queries if and only if it could answer queries of non-modal propositions and their negations, which is a basic problem on knowledge base.

研究了模态逻辑系统S5中的析取范式定理的归纳证明，给出了在S5中用深度至多等于1的最简模态公式通过析取与合取运算表示含有多重模态词的公式的方法，作为范式定理的应用，讨论了知识库中的一个基本问题，证明了知识库能够回答KB命题式问题的充要条件是该知识库能够回答相关的非模态命题及其否定命题的问题。

A knowledge base model based on the combination of the reduced fault tree and the LCU trapezia logic structure is designed after a thorough research on the knowledge base system and the reasoning mechanism of the locomotive fault diagnosis system.

通过对机车故障诊断系统知识库体系和故障诊断推理机制的研究，设计了以简化的电力机车故障树为基础，结合LCU梯形图逻辑构造的知识库原型；应用机车故障诊断双向推理机制，设计并实现了基于LCU处理逻辑的正向推理机以及基于故障树查询的逆向推理机；并以此为基础开发了电力机车远程故障诊断系统的原型，实现了对机车的远程故障诊断。

Based on the ana1yse of the way of the water pipe network's management and the difficult problem which exist in the course of running water pipe network It presents the collectivity project of the city service pipe network Geography information manage system and estab1ish the waterpipe network's basic data-base,and conform afresh the network data by the mode of data-base organization. Then on the base of it,open out the water pipe networks graphics show and edit,hydraulic simulation module,disposal accident module and data query andanalyse module and set up the geography information system.it will exert the network's data-base and computer effect on the city water management.

在对目前给水管网管理方式以及管理过程中碰到的问题进行分析的基础上，给出了城市给水管网地理信息管理系统的总体方案和详细设计，同时建立了给水管网基础数据库，依照数据库的组织方式对管网数据进行管理、编辑和分析，并在此基础上，开发了城市给水管网图形显示、图形编辑、水力模拟、管网事故处理、管网数据查询分析和管网数据专题图等功能模块，建立了城市给水管网地理信息系统，以充分发挥管网数据和计算机技术在城市供水管理中的作用。

The extrude characteristics of intelligent base station are its independent working and being a user for main franking system (common franking system, difference from Intelligent base station) when intelligent base station System communicate with other main franking system.

智能基站的突出特点是既可以独立运行，又可以作为主集群系统(其它集群系统，区别于智能基站)的终端进入主集群系统。

The extrude characteristics of intelligent base station are itsindependent working and being a user for main franking system(common franking system, difference from Intelligent base station)when intelligent base station System communicate with other mainfranking system.

智能基站的突出特点是既可以独立运行，又可以作为主集群系统(其它集群系统，区别于智能基站)的终端进入主集群系统。

The national defence basic project as background and the dynamic model of cotrolled transfer matrix for multiple launch rocket was created in order to reduce the initial disturbance of rocket projectile. The causes that affect the angle change of orientation locator were analyzed by the engineering system dynamic theory base on multibody system transfer matrix method. The simulation of dispersion for multiple launch rocket was implementation, and the affect law between the angle of elevation and side deflection and the control parameters was acquired. The control module was installed on the orientation locator of multiple rocket launcher to control the initial disturbance of rocket that provide new method and theory base and show the engineering system dynamic base on the multibody system transfer matrix method is effective.

本文以国防基础科研项目为背景，建立了通过控制定向器角运动来减小火箭弹起始扰动的多管火箭受控多体系统动力学模型，应用基于多体系统传递矩阵法的工程系统动力学理论，进行了定向器角度运动的影响因素分析，进行了受控多管火箭炮发射动力学和密集度数值仿真，得到了定向器俯仰和侧偏角控制参数对俯仰角和侧偏角的影响规律，为在火箭炮定向器上加装控制集成模块控制火箭弹的起始扰动和射击精度提供了新思路和理论基础，也表明了基于多体系统传递矩阵法的工程系统动力学理论的有效性。

Based on independent research and development, we successfully develop following research productions: Data Acquisition System, Radio Frequency Warehouse Management System, Digital Picking System, High-speed Document Autoscan Identification System, SMT Assembly Line Barcode Management System, Manufacturing Execution System. Meanwhile, various management systems in the field of ambulant operation are provided as well, such as Handheld Computer- Ambulant Operation System, Distribution Resource Planning Management System, Container Yard Wireless Operation Management System, Retail Wireless Operation Management System, Air Cargo- Ambulant Operation Management System, etc . In addition, programming interfaces service we provided, which are compatible with SAP, Oracle, Kingdee and UFIDA platform, have been applied into many fields including stock distribution, manufacturing, business chain, airport, container yard, transportation, tobacco, finance, telecom, post, public Utilities ,etc.

公司自主研发出先进的数据采集管理系统、生产制造执行系统、仓库无线作业管理系统、电子标签拣货系统、AutoScan高速单证扫描识别系统、SMT生产线条码管理系统；同时提供无线手持终端的移动业务系统、移动分销管理系统、堆场码头无线作业管理系统、零售无线作业管理系统、航空货运移动作业管理系统等信息系统；并且提供与SAP、Oracle、金蝶和用友等ERP系统的接口程序，广泛应用于仓储配送、生产制造、商贸连锁、航空机场、码头堆场、交通、烟草、金融、电信、邮政、政府公共事业等领域。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。