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1.
胡健 《大众标准化》2022,(2):114-115,118
时代的进步推动了放射诊疗技术的革新.放射诊疗有利有弊,利在对患者的诊疗能够起到直观帮助,弊在治疗患者时会产生损害人体健康的X射线辐射.从事介入放射、放射诊断、核医学、放射治疗的工作者都会在工作中受到X射线辐射的影响,因此保证医院放射工作人员的辐射环境安全尤为重要.文章结合标准法规分析了某三甲医院X射线辐射种类和来源以及...  相似文献   

2.
计算机已经成为人们日常工作、生活所必不可少的重要工具,计算机的电磁辐射会给计算机用户带来健康危害,如何防止和降低计算机的电磁辐射是计算机用户应该关注的重要问题.任何带电物体都会对周围辐射电磁场,作为计算机主要的带电元件,显示器和主机是计算机电磁辐射的两个主要来源,选择液晶显示器和具有优异屏蔽功能的机箱是防止和降低计算机辐射的关键.  相似文献   

3.
计算机已进入现代社会的各行各业和千家万户,它给人们的工作、学习、生活带来了极大的方便.但“计算机病”也与日俱增,严重的影响了人们的身心健康.如何防止和降低计算机的电磁辐射是计算机用户应该关注的重要问题.作为计算机主要的带电元件,显示器和主机是计算机电磁辐射的两个主要来源,选择液晶显示器和具有优异屏蔽功能的机箱是防止和降低计算机辐射的关键.  相似文献   

4.
本文根据区域经济辐射理论,结合宝鸡地区经济发展状况,从点辐射、线辐射和面辐射三个层次上建立宝鸡地区经济辐射模式发展体系。  相似文献   

5.
辛集市有80%以上的农民种果树,果品收入是广大果农长久以来赖以生存的主要经济来源。在三农问题普遍受到关注的今天,辛集市如何依托传统优势产业提高农民经济收入,并果敢地打造“梨果之乡”呢?本刊记者在实地考察之后,综合其发展中的曲折经历,进行客观而公正的分析,试图以辛集为例,辐射全国梨果行业,并对中国梨果业的快速发展发挥一定借鉴作用。  相似文献   

6.
日前,国家质检总局公布了汽车GPS导航产品质量国家监督抽查结果,合格率为83.8%。与消费者预想不同的是,不合格问题不是出在导航功能和性能上,而是辐射骚扰。什么是辐射骚扰?辐射骚扰项目不合格的成因和危害是什么?您是否也有这样的疑问呢?Q1:辐射骚扰和我们常说的手机辐射、电脑辐射是一回事吗?A1:这是两个概念。辐射骚扰针对是该产品发生的电磁波对于其他电子产品的影响。简而言之就是,我们常说的辐射,  相似文献   

7.
道路交通是区域经济发展的一个重要影响因素。道路交通的辐射情况一定程度上反映了区域经济的辐射情况,道路交通辐射是区域经济辐射的载体,道路交通是各区域经济发展的沟通桥梁。  相似文献   

8.
夏燚  陈松  吴世凤 《价值工程》2010,29(28):130-130
本文介绍了地面辐射供暖系统构成、工作原理。对比分析了柜式空调与地面辐射供暖系统的温度场,分析发现地面辐射供暖系统更符合人体要求、更舒适。通过分析辐射供暖系统和对流供暖系统的传热原理,发现地面辐射供暖系统节能10%~30%。  相似文献   

9.
正"台灯是家电辐射之王"、"无线充电器辐射比手机还大"等说法一直萦绕耳边,这些说法是否有科学依据,真实性又有多少呢?近日,央视网就日常生活中一些产品的电磁辐射值进行多方考证、检测,结果显示一些电器确实是存在辐射值,而有些产品的辐射值是可以忽略的,这为百姓提供了一个权威的数据参考。台灯为"家电辐射之王"?——辐射值可衰减微波炉、电脑、手机等电器存在电磁波辐射是已经被证实的,但是目前网上盛传"台灯才是家电辐射之  相似文献   

10.
远红外电热辐射板是一种主要以辐射形式向周围表面传递热量的供暖设备,可以提高房间的平均辐射温度。而辐射板安装方式、室外空气温度以及户型的大小等因素将影响到房间的平均辐射温度分布,从而影响热舒适性。  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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