催化裂化分馏塔多目标遗传算法优化

建立了催化裂化分馏塔多目标优化函数,并通过遗传算法对其求解,结果表明在某一组操作参数下生产,可以保证分馏塔重石脑油流量和轻柴油流量同时最优,此时多目标综合评价优化函数的适应度值为193．41,对应解下重石脑油流量Q1和轻柴油流量Q2分别为294．771（t／h）和92．053（t／h）,均高于未进行优化的历史操作最高流量值Q1=225．177（L／h）和Q2=53．700（t／h）,实现了分馏塔的多目标优化。     

分散型系统在锅炉控制中的应用

0概述1987年云南昆明卷烟厂在新建3X10t／h饱和蒸汽锅炉时，选用了西安仪表厂成套生产的DDZ－11型自动化仪表。由于仪表技术的发展，DDZ—11型仪表的配件越来越少。1996年昆明烟厂对3X10t／h饱和蒸汽锅炉的仪表进行了改造。由于3台锅炉运行年限也近10年，单独采用一套以L...     

绝对值编码器在干熄焦提升机中的应用

介绍绝对值编码器在控制系统中的硬件组态和软件编程方法,及其在安钢140t／h干熄焦提升机中的应用,以实现提升和走行系统的精准定位。     

卓越性能 赢得客户信任——记VIPAPLC沥青搅拌站应用项目

北京德基机械有限公司（以下简称北京德基）是专门从事沥青混合料搅拌设备的开发研制生产企业，也是国内最早自行研发生产出3000型和4000型大型高档产品的厂家，截至2007年底，北京德基共生产销售高档沥青混合料搅拌设备150余台套，其中70％为高等级公路应用的大型高档间歇式搅拌设备3000型（240t／h）和4000型（320t／h）产品，已成为国内客户公认的搅拌设备专业制造主导厂家之一。     

基于CAN总线的锅炉测控系统的设计与实现

针对大连龙海集团三台35t/h蒸汽锅炉和三台40t／h热水锅炉,提出了一套CAN（Controller Area Net）现场总线控制系统方案,论证了CAN现场总线控制系统在锅炉控制中应用的可行性和优越性;提出了一种在线动态自寻优方案,解决了锅炉燃烧系统资源浪费和环境污染等问题;控制系统全部控制功能由分散在锅炉附近的现场测控仪表完成。     

梅山热轧厂加热炉燃烧控制系统

详细介绍了梅山热轧厂280t／h加热炉燃烧控制系统的构成，并着重叙述、分析了对系统的一些特点所采取的控制策略。事实证明这些控制策略是行之有效的。     

高准（Micro Motion）：精准的科里奥利质量流量计

我需要测量从-200℃到400℃温度条件下的流量。 我需要测量小到1g/h，大到1000t／h的流量。 我需要测量气液两相流体的流量。 我需要校验这台流量计，可是工艺装置近期根本不能停下来。”     

MACS-Smartpro系统在循环流化床锅炉和汽机中的应用

本文结合75t／h循环流化床锅炉和汽机控制系统改造项目，介绍了北京和利时公司的MACS-Smartpro分布式控制系统的应用，从该系统的软件和硬件两方面阐述了设计思路和控制方案。     

RSView SE在干熄焦自动化系统中的开发与应用

本文以济南信赢煤焦化有限公司150t／h干熄焦监控系统为背景，讨论了罗克韦尔自动化的监控组态软件RSViewSE的功能特点，介绍了该监控系统的结构和主要配置以及软件开发中的要素。     

西门子S7-400H在热电厂自动控制系统中的应用

昆明某厂自备小型热电厂配置有两台35t／h的煤粉锅炉及两台3000kW的背压式汽轮发电机组，采用母管制方式运行，既产生电力又供应蒸汽。热电厂还设置了减温减压器与汽轮机组并列运行，作为备用的供热汽源。整个自动控制系统由中央监控站和4个远程I／O站(1^#锅炉远程I／O站、2^#锅炉远程I／O站、1^#     

Two and three-quarter dimensional meshing facilitators

This paper presents generated enhancements for robust two and three-quarter dimensional meshing, including: (1) automated interval assignment by integer programming for submapped surfaces and volumes, (2) surface submapping, and (3) volume submapping. An introduction to the simplex method, an optimization technique of integer programming, is presented. Simplification of complex geometry is required for the formulation of the integer programming problem. A method of i-j unfolding is defined which explains how irregular geometry can be realigned into a simplified form that is suitable for submap interval assignment solutions. Also presented is the processes by which submapping eliminates the decomposition of surface geometry, through a pseudodecomposition process, producing suitable mapped meshes. The process of submapping involves the creation of interpolated virtual edges, user defined vertex types and i-j-k space traversals. The creation of interpolated virtual edges is the method by which submapping automatically subdivides surface geometry. The interpolated virtual edge is formulated according to an interpolation scheme using the node discretization of curves on the surface. User defined vertex types allow direct user control of surface decomposition and interval assignment by modifying i-j-k space traversals. Volume submapping takes the geometry decomposition to a higher level by using mapped virtual surfaces to eliminate decomposition of complex volumes.     

Unextendible Product Bases and Locally Unconvertible Bound Entangled States

Mutual convertibility of bound entangled states under local quantum operations and classical communication (LOCC) is studied. We focus on states associated with unextendible product bases (UPB) in a system of three qubits. A complete classification of such UPBs is suggested. We prove that for any pair of UPBs S and T the associated bound entangled states _S and _T cannot be converted to each other by LOCC, unless S and T coincide up to local unitaries. More specifically, there exists a finite precision (S,T) > 0 such that for any LOCC protocol mapping _S into a probabilistic ensemble (p, ), the fidelity between _T and any possible final state satisfies F(_T, ) = 1 - (S,T).PACS: 03.65.Bz; 03.67.-a; 89.70+c.     

A Dialogue with C. West Churchman

In 1996, the author attended a seminar on ethics given by C. West Churchman at the University of California, Berkeley. During that year, the author also interviewed Churchman several times regarding the future direction of information sciences in general and the information systems research field in particular. This article is a compilation of the seminar and the interviews. It is set in the context of both Churchman's earlier and his current views of a global god, good, kindness, and caring. C. West Churchman holds that global ethics should lead to the study and design of information systems to solve large and difficult problems of the humankind such as poverty, crime and disease. His Global Ethical Management (GEM) of information sciences translates into abandoning the current goals and boundaries of the information sciences fields and changing what constitutes valid research to globally ethical endeavors.     

Modelling co-operation in the design of knowledge production systems: The Made In'Coop method

This paper presents the latest developments of the MadeIn 'Coop method for modelling the human-machine and human-human co-operation process, and an application of this method for the design of a more co-operative version of the C³I System CHEOPS. We first consider that the design of software systems for organizations is tied more and more to the perspective of compound Knowledge Production Systems that link humans and machines engaged in a co-operative problem solving process. After exposing the four principles upon which MadeIn 'Coop rests for modelling co-operation, we present an artificial problem solving dialogue between CHEOPS and its users. Consistent with the Group Cognitive Processes Theory framework, we propose a dialogue analysis according to two complimentary points of view: the Collective Problem Solving model, and the Coordination model. This analysis should help system designers to identify new system functionalities to assist problem solving.(C³I) Command Control Communication Intelligence Systems     

Is Solar System Stable? A Remark

It is not yet known (1997) whether the Solar system is stable or not. Common belief is that the Solar system is stable if and only if it is not a resonant system, i.e., whenever its orbital frequencies i satisfy an inequality | nii| for i|ni| N; a similar inequality is true for randomly chosen frequencies. In this paper, we show that the Solar system does not have such resonances, and therefore (if the above-mentioned belief is correct), it is stable.     

An Efficient Fixed Parameter Tractable Algorithm for 1-Sided Crossing Minimization

We give an O(^k · n²) fixed parameter tractable algorithm for the 1-Sided Crossing Minimization. The constant in the running time is the golden ratio = (1+5)/2 1.618. The constant k is the parameter of the problem: the number of allowed edge crossings.     

Technology and its environment

If one interprets the ecology of technology as the study of technology in relation to its environment, there are two important levels at which this study can be made. It is possible to consider the different environments in Europe, Japan and the USA, and look for the different technological influences which accompany them. At a more general level, one can look at those factors which are common to all three environments, and which are associated with generic similarities in the technology of all three areas.The paper considers both aspects as they have been experienced in Europe in some attempts to develop a human-centred technology.Paper given at Conference on Ecology of Science and Technology, Japan Science Foundation, Tokyo, 1992.     

How to Pass a Turing Test

I advocate a theory of syntactic semantics as a way of understanding how computers can think (and how the Chinese-Room-Argument objection to the Turing Test can be overcome): (1) Semantics, considered as the study of relations between symbols and meanings, can be turned into syntax – a study of relations among symbols (including meanings) – and hence syntax (i.e., symbol manipulation) can suffice for the semantical enterprise (contra Searle). (2) Semantics, considered as the process of understanding one domain (by modeling it) in terms of another, can be viewed recursively: The base case of semantic understanding –understanding a domain in terms of itself – is syntactic understanding. (3) An internal (or narrow), first-person point of view makes an external (or wide), third-person point of view otiose for purposes of understanding cognition.     

Rapid Concept Learning for Mobile Robots

Concept learning in robotics is an extremely challenging problem: sensory data is often high-dimensional, and noisy due to specularities and other irregularities. In this paper, we investigate two general strategies to speed up learning, based on spatial decomposition of the sensory representation, and simultaneous learning of multiple classes using a shared structure. We study two concept learning scenarios: a hallway navigation problem, where the robot has to induce features such as opening or wall. The second task is recycling, where the robot has to learn to recognize objects, such as a trash can. We use a common underlying function approximator in both studies in the form of a feedforward neural network, with several hundred input units and multiple output units. Despite the high degree of freedom afforded by such an approximator, we show the two strategies provide sufficient bias to achieve rapid learning. We provide detailed experimental studies on an actual mobile robot called PAVLOV to illustrate the effectiveness of this approach.