离子选择电极法检测中药糖浆剂中的微量氰

一些含氰甙类的中药，如苦杏仁，枇杷叶等，均有一定的止咳平喘功效。用上述药材制砀 糖浆剂，在存放过程中，其氰甙有可能被共存于植物中的酶或其它因素分解，产生具有毒性的氢氰酸。对于本身不含有氰甙类成份的中药糖浆剂，也有可能在不同程度上，直接或间接受到环境中氰的污染。因而对其进行检测是必要的。本文用氰离子选择电极，对十种中成药糖浆剂中的游离氰及总氰含量进行了检测。该法简便，快速，灵敏。     

基于模糊PID预估控制的电镀废水处理中pH/ORP值的优化控制

通过对废水处理工艺的研究,针对废水处理过程控制系统的特点,提出一种废水处理中pH及ORP值的控制方案,并实现智能控制策略研究,达到废水的综合利用及合格排放的目的。     

过程工业水分配网络系统集成的NLP模型

针对单组分杂质用水和废水处理网络同步集成最优化问题,以最小总操作费用为目标,建立了非线性规划(NLP)模型。该模型既考虑了新鲜水费用和水处理费用之间存在的耦合关系以实现二者的优化均衡,又考虑了环境排放标准及分散式处理网络对水网络集成的影响。采用商业优化软件GAMs对算例问题进行求解,结果表明本文提出的模型能有效处理工业水分配网络系统的优化集成问题,与用水网络和废水处理网络分别集成相比,在年总费用上有不同程度的减小,较好地实现了过程工业在满足环保排放规定前提下的经济效益最大化。     

国内招商

寻求内容:采用有机芳香磺酸钠盐和烧碱为原料,要求提供加热“热熔态”化学反应过程的工艺、设备技术、自动控制设施,有机芳香磺酸工序阶段收率90％,连续运转能力1000T/日以上。 寻求解决双甲苯酚的生产工艺 寻求内容:1.日前产品中对甲苯酚对应含量仅91％左右,且邻位和间位无法有效控制,要求解决工艺问题,使产品对应含量达99％以上。2.目前废水中含酚太高,需引进废水处理技术和装置,提取废水中的酚,使废水达到0.5PPM排放标准。     

化工企业自动化仪表的设计探讨

良好的化工企业自动化仪表设计可以优化自动化仪表的使用性能，提高其适应性。简要介绍了化工企业自动化仪表及其设计原则和仪表分类，阐述了化工企业自动化仪表的基本设计理念。     

含酚废水的超声-活性炭联合处理

含酚废水对环境具有较大危害,去除废水中的酚含量对环境安全具有重要的意义.活性炭吸附和超声降解技术都被应用于废水处理中,本文首次将这2种技术联合起来处理含酚废水,并比较了活性炭吸附、超声降解和超声-活性炭联合技术3种方浇法的效果,表明超声-活性炭联合技术对苯酚的去除率高于单独使用活性炭吸附或超声降解,探讨了溶液pH值、超声时间、活性炭投加量等因素对联合处理含酚废水效果的影响,发现处理100 ml的0.01 mol/L的模拟含酚废水,溶液pH值为5,超声处理20 mins,0.4 g活性炭振荡吸附20 mins,可使苯酚去除率达到83.9%.联合技术可以综合2种技术的优势,在废水处理中有着广阔的应用前景.     

硫化银电极直接测定工业废水中氰化物的研究——干扰离子的掩蔽与消除

氰化物具有剧毒,是环境监测中的重要指标之一。水中氰化物可分为简单氰化物和络含氰化物两种。目前国内外测定氰的方法是在酸性条件下加热蒸馏试样,将形成氢化氰吸收于氢氧化钠溶液中,然后用滴定法,比色法或电极法定量氰化物,故测量手续较繁琐。定量测定氰化物的方法中以电极法测氰具有测量浓度范围广,不受试液的色度,浊度的影响,有快速和连续监测等优点,用于测定氰化物的离子选择性电极法有碘化银电极     

用智能体实施化工企业多层优化的新策略

对化工企业的多层次优化提出了一种全面的规划方法，包括经营方案优化、生产调度优化、装置操作优化等，并给出了一个化工企业多层优化框架．在化工企业多层框架的基础上，引入智能体技术，研究了多个智能体的组织、各个智能体的作用以及智能体的设计与实现．     

基于MRP—Ⅱ的化工企业网络经营管理系统

化工企业网络管理系统ＣＮＭＳ是基于ＭＲＰ－Ⅱ的一种新型的企业内部网络管理信息系统，本文论述了三个方面的内容；化工企业内部的数据流向及关系；化工企业网络管理系统的设计；化工企业网络经营管理系统的实现。     

基于智能体的化工企业多层优化框架

在多层次优化的基础上，引入智能体技术，通过智能体之间的协作来求解全局最优解，提出了基于智能体的化工企业多层次优化的框架，以及各个智能体的设计和具体实现，并对某化工企业进行优化，验证了所提出的方法。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.