生态纺织品检测之一 纺织品 游离甲醛的测试

介绍甲醛的基本知识、国内外检测标准、甲醛含量测定所使用的主要仪器设备及其原理、相关化学反应等。     

谈化工生产工艺流程的组成

化工产品的生产过程基本包括三个步骤,即原料的预处理、化学反应、产物的分离及精制。由于化工生产是以化学反应占主体的加工过程,故化工过程都是以化学反应过程为中心。根据反应的特点和工艺条件的不同,可供选择的反应器类型与结构也多种多样。化工生产工艺流程反映了原料转化为产品所采取的化学和物理的全部措施,化工生产中的工艺流程是多种多样的。以下将简要对化工生产工艺流程的组成进行分析。     

废定影液中银的回收利用

用硫化钠从废定影液中以硫化银的形式回收银,高温灼烧硫化银得纯银,银回收率97.8%,纯度99.2%。     

废定影液中银的回收利用

用硫化钠从废定影液中以硫化银的形式回收银,高温灼烧硫化银得纯银,银回收率97.8%,纯度99.2%。     

煤气净化湿法脱硫的几种化学工艺

本文主要对栲胶脱硫法等三种方法的化学反应机理、基本原理、各自的优缺点进行了分析。     

应用推理方法拟定化学反应历程

拟定化学反应历程是化学反应动力学重要教学任务之一,学生往往感到不知从何入手,困难较大,本文结合近年教学,有意识地运用推理方法,给出线索,启发学生思考,并通过具体例子对推理方法加以说明,对培养学生独立分析问题、解决问题能力有一定帮助。     

化学反应—过滤法在含镉废水治理中的应用

采用化学反应—过滤工艺进行了含镉废水治理的实验和工程应用。结果表明,上述工艺流程用于含镉废水治理是可行的。当系统进水镉浓度小于1000mg/L时,出水浓度小于0.1mg/L,符合《污水综合排放标准》GB8978—1996相关规定。系统产生的污泥量少,便于收集和后续处理。     

化学反应工艺因素基本分析

从宏观的角度而言,有新物质生成的变换称为化学变换;化学反应种类繁多,变换无穷,研究和应用的角度不同,本文对化学反应工艺因素进行简要的分析.     

煤矿采煤生产过程对地下水的防治

作为我国主要能源的煤炭,占据了我国一次性能源的70%以上。但是煤矿采煤过程发生着一系列的物理、化学反应,对各种地下水以及其他环境影响较大,因此如何做好煤矿采煤生产过程对地下水的防治是相关人士探究的话题。本文就是从采煤队酸性矿井水影响入手,探析煤矿采煤生产过程对地下水的防治。     

云南某氧化锌矿的浮选试验研究

云南某氧化锌矿中锌的含量为5.5%,主要以氧化锌形式存在,其次是硫化锌,脉石矿物含量较多。针对该氧化锌矿进行了浮选试验研究,结果表明:在磨矿细度-0.074mm占85%的条件下,以十二胺为捕收剂、硫化钠为活化剂、硅酸钠为抑制剂,经一次粗选两次扫选三次精选的开路流程,获得Zn品位为35%,Zn回收率为84.82%的锌精矿,回收指标较为理想。     

Development in Information and Communications Technology (ICT) Statistics at the Australian Bureau of Statistics

This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.     

Value at Risk in the Suburbs: Eminent Domain and the Geographical Politics of the US Foreclosure Crisis

Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.     

Accountability of NGOs in Bangladesh A critical overview

NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.     

Towards an Asian model of human resource management? A comparative analysis of China,Japan and South Korea

There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.     

Ansätze und Ergebnisse anglo-amerikanischer M&A-Forschung

Based on a review of established U.S. management journals (1995–2003), six schools of thought are identified within the Anglo-American M&;A research: “Capital Market”, “Principal/Agent”, “Industrial Organization”, “Organizational Behavior”, “Human Resources” and “Strategic Management”. The literature review shows that the definition of M&;A success, the methods applied, and insights from empirical research differ according to the respective school of thought. Empirical studies focus on the resource combinations of merger partners, the specific circumstances of merger negotiations, and on integration management as antecedents of merger performance. Unfortunately, empirical findings have not yet provided reliable explanations for M&;A success. Based on the current state of Anglo-American M&;A research, the authors discuss implications for business practice, identify research gaps, and propose areas for future research.     

Introduction of New Technology with a Sound Transition of the Input-Output Structure

We examine the general equilibrium repercussions associated with the introduction of new technologies, using the generalized Leontief system that allows technological substitutions. We show that an untested introduction of cost-increasing technologies in any industry may result in creating a non-productive technological structure that does not satisfy the Hawkins-Simon condition, following the autonomous dynamic adjustment process with structural transitions in the economic system. Therefore, we propose a practicable control scheme of introducing cost-increasing technologies that strictly avoids the creation of non-productive structures in all periods of structural transition, using the available information on the ex ante technological structure.     

The Creation of the Office for National Statistics

A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.     

What helps? Women engineers' accounts of staying on

We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.     

论现代物流企业的发展观

物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。