纳米氧化锌制备技术与工业生产

介绍了国内外纳米氧化锌制备技术的研究进展.通过对国内外制备技术和生产现状的比较,提出以尿素为沉淀剂,以硝酸锌为含锌原料,采用均匀沉淀法制备纳米ZnO的工艺路线,研究了相关的工艺过程及反应条件、反应产物的过滤洗涤和纳米ZnO的煅烧,对存在的问题和今后的研究方向进行了讨论.     

Critical Situations for Decision Making: A Support Based on a Modelling Tool

This paper proposes to give a toll to help decision makers in critical situations. The principle of our research is based on a modelling approach for Cooperative Knowledge Based Systems. This approach is based on a Task/Method paradigm that we describe. We then propose to take into account collateral effects of tasks in order to support decision makers in a critical context. The proposed tool can then generate a degraded solution for which, collateral effects of previous tasks have been taken as new goals to reach. This study is possible thanks to the definition of several kinds of models: a Good Functioning Model and a Degraded Tasks Library.     

Search reduction in hierarchical distributed problem solving

Knoblock and Korf have determined that abstraction can reduce search at a single agent from exponential to linear complexity (Knoblock 1991; Korf 1987). We extend their results by showing how concurrent problem solving among multiple agents using abstraction can further reduce search to logarithmic complexity. We empirically validate our formal analysis by showing that it correctly predicts performance for the Towers of Hanoi problem (which meets all of the assumptions of the analysis). Furthermore, a powerful form of abstraction for large multiagent systems is to group agents into teams, and teams of agents into larger teams, to form an organizational pyramid. We apply our analysis to such an organization of agents and demonstrate the results in a delivery task domain. Our predictions about abstraction's benefits can also be met in this more realistic domain, even though assumptions made in our analysis are violated. Our analytical results thus hold the promise for explaining in general terms many experimental observations made in specific distributed AI systems, and we demonstrate this ability with examples from prior research.This research has been sponsored, in part, by the National Science Foundation under grants IRI-9015423 and IRI-9010645, by the University of Michigan Rackham Graduate School, and by a Bell Northern Research Postgraduate Award.     

日本物流园区规划建设及对我国的启示

日本是物流园区发展较快的国家,同时也是世界上物流发达国家,本文以日本物流园区作为研究对象,通过分析其物流园区实践,从而为探讨我国物流园区发展模式提供思路。     

我国乡村旅游存在的主要问题及对策

随着经济社会的发展,我国的乡村旅游出现了蓬勃发展的势头,但在其实践中也存在着一些亟待解决的突出问题。只有加强规划和管理,加大投入、培训和宣传力度,在改善硬件设施的基础上提高服务质量,建立起营销网络,才能促进乡村旅游的持续、健康发展。     

产品核心竞争力的三大支柱——产品概念 营销观念 价值创新策略

企业对本行业的产品和市场要有整体概念 ,才能形成现代营销新观念。从产品定义、产品规划入手对营销新观念进行介绍和分析 ,结合消费价值、顾客效用和价值创新策略引出了市场与行业的新定义 ,并着重指出创造消费价值对增强产品竞争力的重要性。     

论内审价值实现途径

服务的内向性是内部审计的基本特点,建立新型审计管理体制,加强法制建设,提高法治水平及更新内部审计思维观念,处理好内审与外审的关系,监督与服务的关系,不断提高审计人员素质是实现内审价值的有效途径。     

书院制人才培养：逻辑架构与系统创新——以南京审计学院为例

越来越多的高校继承中国古代书院精神和传统,借鉴西方寄宿制经验,探索符合时代精神的书院制人才培养模式,推进高等教育教学改革。南京审计学院在遵循学生成长规律的基础上,借鉴国内外高等教育教学改革的成功经验,逐渐形成了书院改革思路,提出了在全人教育理念统领下的两种机制（学院、书院）协同、三全模式（全员育人、全过程育人和全方位育人）优化、四要素（通识教育、导师制、学分制、住宿制）联动、五大体系（人才培养体系、学业辅导体系、综合素质提升体系、自主管理体系、“三务联动”支持体系）整合的人才培养创新系统。     

浅谈钢筋加工场的整体布置与规划

本文通过郑徐客专站前工程桥梁桩基、承台、墩身施工中钢筋加工场的整体布置与规划,重点介绍根据工期要求进行钢筋场的整体布置与规划;根据施工工艺及流水线作业方式确定钢筋场加工各功能区的规划;根据建设单位施工现场标准化管理要求,实现统筹规划,合理布局,节约用地,注重实用,符合标准。     

我国需求侧资源促进大规模间歇可再生能源并网消纳模式

通过需求侧资源促进可再生能源并网消纳,能够降低系统对传统燃煤备用机组和输电线路扩容的需求,具有显著的经济、环保效益。为了促进需求侧资源的合理开发和利用,服务于促进整个电力系统中可再生能源的消纳,文章首先分析了我国间歇可再生能源并网消纳传统模式及存在的问题;然后,构建了面向需求侧资源业主、电网企业和发电企业三个市场主体,涉及长期规划、短期运行和需求侧资源促进可再生能源并网消纳贡献度评价的我国需求侧资源促进间歇可再生能源并网消纳的“三横三纵”模式;最后,研判我国促进间歇可再生能源并网消纳的需求侧资源关键技术。