拉拉铜矿矿床工业指标探讨

从地质、技术经济的角度讨论拉拉铜矿合理矿床工业指标。通过分析论证认为调整矿床工业指标有利于满足矿山扩大规模开发的需要,提高矿山开发的经济效益,解决矿山生产过程中的实际问题。     

Conception of the optical sensors based on transient processes in MIS structures

New silicon-based optical sensors with metal–insulator–semiconductor structure (MIS) have been developed in this work. The physical properties of these sensors are described with a simple MIS capacitor model. Two-level voltage bias provides a transient between two quasi-equilibrium inversion modes. This transient is applied for storage and readout of the input optical signal for a quantitative measurement of a weak radiation. Proposed simple readout procedure provides reading the integrated information with a significant amplification. The amplification (or the current transformation coefficient) is determined by the ratio of integration and readout times and in this investigation the amplification exceeds the value of 10³. A simple theoretical model is applied to describe the sensor properties at illumination. Numerical calculation under the experimental conditions confirms a validity of the physical model and arguments used at the discussion of the experimental results.     

Meta-modelling and graph grammars for multi-paradigm modelling in AToM<Superscript>3</Superscript>

This paper presents the combined use of meta-modelling and graph grammars for the generation of visual modelling tools for simulation formalisms. In meta-modelling, formalisms are described at a meta-level. This information is used by a meta-model processor to generate modelling tools for the described formalisms. We combine meta-modelling with graph grammars to extend the model manipulation capabilities of the generated modelling tools: edit, simulate, transform into another formalism, optimize and generate code. We store all (meta-)models as graphs, and thus, express model manipulations as graph grammars.We present the design and implementation of these concepts in AToM³ (A_To_ol for M_ulti-formalism, M_eta-M_odelling). AToM³ supports modelling of complex systems using different formalisms, all meta-modelled in their own right. Models in different formalisms may be transformed into a single common formalism for further processing. These transformations are specified by graph grammars. Mosterman and Vangheluwe [18] introduced the term multi-paradigm modelling to denote the combination of multiple formalisms, multiple abstraction levels, and meta-modelling. As an example of multi-paradigm modelling we present a meta-model for the Object-Oriented Continuous Simulation Language OOCSMP, in which we combine ideas from UML class diagrams (to express the OOCSMP model structure), Causal Block Diagrams (CBDs), and Statecharts (to specify the methods of the OOCSMP classes). A graph grammar is able to generate OOCSMP code, and then a compiler for this language (C-OOL) generates Java applets for the simulation execution.     

Piazza: mediation and integration infrastructure for Semantic Web data

The Semantic Web envisions a World Wide Web in which data is described with rich semantics and applications can pose complex queries. To this point, researchers have defined new languages for specifying meanings for concepts and developed techniques for reasoning about them, using RDF as the data model. To flourish, the Semantic Web needs to provide interoperability—both between sites with different terminologies and with existing data and the applications operating on them. To achieve this, we are faced with two problems. First, most of the world’s data is available not in RDF but in XML; XML and the applications consuming it rely not only on the domain structure of the data, but also on its document structure. Hence, to provide interoperability between such sources, we must map between both their domain structures and their document structures. Second, data management practitioners often prefer to exchange data through local point-to-point data translations, rather than mapping to common mediated schemas or ontologies.This paper describes the Piazza system, which addresses these challenges. Piazza offers a language for mediating between data sources on the Semantic Web, and it maps both the domain structure and document structure. Piazza also enables interoperation of XML data with RDF data that is accompanied by rich OWL ontologies. Mappings in Piazza are provided at a local scale between small sets of nodes, and our query answering algorithm is able to chain sets mappings together to obtain relevant data from across the Piazza network. We also describe an implemented scenario in Piazza and the lessons we learned from it.     

低磷酸盐处理在娘子关发电厂的应用

对娘子关发电厂炉水磷酸盐处理存在的问题进行分析，对降低锅炉水冷壁的腐蚀和结垢提出了建设性意见。     

引进项目的管理及创新

通过高速线材轧机引进项目的管理,技术消化和转化以及企业管理实践,阐述了针对现代化生产企业管理模式的探索和管理创新,实现了项目决策的预期目标.     

三峡输电工程建设极大促进我国架空线缆技术进步

章分析了三峡500kV输电工程建设对架空线缆的技术要求，总结了近年来我国线缆行业依托三峡输电工程建设大力开展技术创新工作所取得的令人瞩目的技术进步。三峡工程极大地促进了我国架空线缆制造业水平的提高，使我国架空线缆制造水平、产品质量和生产能力上了一个新台阶，包括钢芯铝绞线、铝合金线与铝包钢线及其大跨越导线、光纤复合架空地线(OPGW)和高强度与特高强度镀锌钢线等。     

广电集团输变电一次运行设备缺陷情况分析

章对广东省广电集团公司2003年输变电一次运行设备紧急、重大缺陷进行了统计分析，重点介绍和分析了开关设备、主变压器、架空线路、避雷器等主要设备的典型缺陷情况，尝试对设备缺陷进行了分类，并提出了针对性较强的消缺和预防措施。     

可拓方法与TRIZ方法在产品创新设计上的应用

由中国学者蔡文于1983年所创立的可拓学，发展迄今近20年以来，已经成功地应用在新产品构思、决策、搜索、诊断、识别与评判等各个专业领域，应用其方法可以解决工程上所面临的矛盾问题。而由前苏联学者Genrich．S．Altshuller于1946所发展之TRIZ(俄文英译：Theory of Invention Problelm Solving，TIPS)方法，是由两百万余项专利所推演、分析与归类之独到工程矛盾解决方法，对于创新设计工程问题有相当程度之助益。笔者主要研究两方法在产品创新设计之特性与差异，包含前者是以理论学说导向工程应用；后者是以实际结果统计归纳出解决途径等。此外，试图藉可拓方法中的物元变换方法，采用其解决矛盾问题的基本特性，结合TRIZ方法的矛盾矩阵，应用于产品创新改良设计，并得到可行结果。     

基于方向余弦参量的物坐标系与世界坐标系间的坐标变换

借助物体上三点建立了物坐标系,并给出了其坐标轴的方向余弦计算式。利用矢量代数的方法,推导出以方向余弦为参量的物坐标系到世界坐标系的坐标变换矩阵;利用矩阵求逆的方法,推导出世界坐标系到物坐标系的坐标变换矩阵。作为推论,推导出两种特殊情况的坐标变换矩阵。文中推出的物坐标系与世界坐标系间的两个变换矩阵可作为任意两个坐标系间的坐标变换矩阵,故具有通用性。