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1.
武汉大学分析测试中心于1983年落成,位于风景秀丽的珞珈山之西,面积约6800平方米,是国家教委直属高校中首批建成的分析测试中心之一。它拥有高分辨质谱仪、色谱仪、电子能谱仪、四园单晶衍射仪、富里叶红外光谱仪、扫描显微分光光度计、原子吸收光谱仪、扫描电子显微镜、透射电子显微镜、激光拉曼谱仪、激光光谱仪、等离子体光谱仪、多晶X射线衍射仪、核磁共振谱仪等20余台套现代大型分析测仪器及相应  相似文献   

2.
文章介绍了目前被广泛使用的拉曼光谱仪和相应的光路,探索利用拉曼光谱仪进行应力和温度检测的方法。文章通过实验,以检测金刚石为例,证明了该方法的可行性,并拟合出拉曼频移与温度、拉曼频移与应力之间的关系曲线,为后续金刚石刀具应力和温度的在线检测方法的研究提供了实验基础和研究依据。  相似文献   

3.
叶莉 《企业导报》2013,(10):268-269
拉曼光谱技术是一种研究物质结构的强有力的工具,已经应用于很多领域,但是在水质分析中的讨论和应用并不多见。本文采用激光拉曼光谱测量不同硬度水样品的拉曼谱的弯曲振动峰与伸缩振动峰强度的比值,并对拉曼光谱在水质分析中应用的可行性以及优越性进行分析。  相似文献   

4.
《中国总会计师》2013,(11):158-158
水晶是一种非常具有观赏性的中档宝石,其虽不及钻石、翡翠、和田玉等价值高,但其晶体大,购买成本相对较低,鉴别相对简单,因而在收藏市场中占据着独特的地位,深受大众的喜爱,同时它也逐渐成为备受收藏家们青睐的宝石。  相似文献   

5.
本文通过对宝石鉴定标准的描述,利用一些生活中比较常见的工具和方法来鉴定宝石,帮助消费者在购买宝石时,对宝石的真假进行一些初步的判断。  相似文献   

6.
《中国中小企业》2008,(10):92-95
新型酒用香料;美国开发出激光辅助选种新技术;基因方法让西瓜有柠檬味;法国利用粒子加速器鉴别红酒;可排放出维生素C的保鲜冰箱.  相似文献   

7.
国标GB/T16552-1996《珠宝玉石名称》中规定,天然宝石是指由自然界产出,具有美观、耐久、稀少性,可加工成字、装饰品的矿物单晶体(可含双晶)。天然宝石名称中不加“天然”二字,相对天然宝石而言,人工宝石名称中需加“合成”、“拼合”、“仿”等字。由于一些宝石经销商利用消费者缺乏对宝石饰品真伪鉴别能力、又爱  相似文献   

8.
<正>石家庄宝石集团是集制造和科研于一体的多元化、高科技大型企业,下属15个子公司和直属单位,其中1个上市公司——宝石电子玻璃股份有限公司(000413宝石A、200413宝石B),包括装备厂、元件厂、机加模具厂、能源动力厂和河北旭宝建筑安装工程公司等5个单位;4个全资子公司——宝石克拉大径塑管工程有限公司、宝石众和钢塑门窗型材有限公司、宝石  相似文献   

9.
正峰 《上海企业》2010,(6):97-97
中国《红楼梦》里有贾宝玉的“守护宝石”;印度古国有令人神往的生辰宝石故事;西方《圣经》中同样也记载许多催人暇思的诞生石的由来。人们相信佩戴当月的宝石会带来幸运,因而渐渐流行戴代表自己出生那个月的宝石,并最终形成一种风俗。  相似文献   

10.
正随着人们消费水平的不断提高,珠宝消费也渐成热点。中消协表示,2014年上半年全国消协组织受理投诉情况显示涉及珠宝首饰的投诉量同比上升4.7%,其中,反映珠宝销售中以假充真、以次充好、虚标等级含量的情况较多。中消协表示,在珠宝消费市场上,一些商家标识笼统含糊,只标"玉"或"宝石",未按要求标识具体宝玉石名称;一些商家将人工宝石或者经处理的宝石当做天然宝石出售;还有一些商家以低档宝石假冒高档宝  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
杨明 《价值工程》2012,31(7):16-17
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。  相似文献   

19.
丛广英  乔炜君 《价值工程》2010,29(6):245-245
大体积混凝土的裂缝问题是实际工程中长期困扰工程技术人员的问题,其控制技术的研究是混凝土结构研究的热点问题,具有重大的学术价值和潜伏的工程背景。  相似文献   

20.
This paper focuses on the fashion industry, one characterised by issues such as dramatic shifts in the scale and power of major retail buyers in the market, the advent of retailer own brands, and the nature of sourcing and supply chain decisions, issues that are increasingly global in nature. The aim of this research is to explore the nature of relationships between UK high street multiple fashion retailers and their contracted suppliers, many of whom are entrepreneurial firms by most definitions of the term. Four core themes emerge from the literature and provide a framework for the research, namely, power, process, partnership, and people. The research approach was qualitative, and conducted over a period of twelve months. The paper ends with an agenda for future research.  相似文献   

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