基于FLAC3D关于底板裂隙渗流耦合的研究

煤矿底板水害威胁十分严峻,本文研究各种模拟方法,鉴于FLAC3D模拟软件在分析岩体三维结构受力特性方面的突出表现,最终使用了FLAC3D模拟软件,对岩样在渗透实验中的变化进行模拟。并在前期对岩样进行一般力学实验,以保证FLAC3D软件进行模拟所需要的各种物理力学参数。用模拟结果与实际的实验结果进行比对,模拟的结果能够体现出煤田底板岩石裂隙与应力变化之间的相互关系。     

电力系统故障仿真软件分析

随着电力市场不断发展、电力电子技术的逐步应用、大型电力系统串级式故障的不断出现和对电力系统控制器的深入研究,电力系统仿真软件的应用也越来越迫切,文章介绍了电力系统动态模拟装置模拟软件和电磁暂态仿真软件,以全面提高软件资源共享的能力。     

计算机体系结构软件模拟技术

随着计算机技术的日益发展,系统结构也在不断更新,当前计算机体系结构软件模拟技术已经成为计算机系统必须的环节,在软件产品设计方面,这种新技术可以大大缩短设计时间,节省了大量的人力、物力和财力。所以,计算机体系结构软件模拟技术对计算机市场开发至关重要。本文深入探讨了计算机体系结构软件的模拟技术。     

基于OPNET的网络实验教学半实物仿真研究

随着网络技术的进一步提高，在网络实验教学中需要使用仿真手段将模拟网络与真实网络相连接，在半实物仿真系统的模拟过程中，需要利用一些仿真软件才能够解决模拟网络与真实网络之间的通信。本文简要介绍半实物仿真的概念，进而介绍了OPENT这种仿真软件，最后论述了在网络实验教学中应用OPNET仿真软件的内容。     

CAD软件在工程地质三维建模中的应用研究

文章基于工程地质的三维建模,提出一种既可快速建模,又支持模拟数值分析的软件——CAD软件,在简单介绍建模及软件特点的基础上,从结构面、地层面的三维面创建入手,深入探讨了CAD软件在工程地质三维建模中的具体应用,得出了基于CAD软件创建的三维模型不仅可以十分清晰、直观的展示边坡的地质构造,而且还很好的实现了建模软件与模拟数值分析软件有效结合的结论。     

丁坝区的三维流场研究

本研究使用三维计算流体力学软件FLUENT模拟渠道内流经两支丁坝的流况,借由软件模拟流场特性,了解三维流场分布及涡度分布情形。研究案例依照丁坝长度、丁坝间距与上游流量不同分为三组。经由模拟回归得到此三项变因与丁坝回流长度及坝间流速的关系式,以供后续实验模拟参考。     

ERP沙盘模拟平台缺陷分析与二次开发

ERP沙盘模拟是目前广泛应用的体验式教学方法;ERP沙盘模拟依托沙盘道具、辅助软件等组成教学平台,由学生组成6~8组模拟企业,在竞争环境中体验企业经营。本文在分析现有ERP沙盘模拟平台缺陷基础上,从整体经营环境、财务、营销、供应链、生产制造、配套软件等方面进行全新改造,开发了具有高职特色的ERP沙盘模拟平台,以期进一步提升ERP沙盘模拟教学的效果。     

营销模拟教学平台在市场营销专业教学中的应用

本文阐述了模拟教学在市场营销专业教学中的必要性,认为模拟教学能够提高学生理论联系实践能力,能够增强学生之间的团队合作意识,能够改变教学中的信息传播模式。通过SIMBRAND模拟软件在教学实践中的应用过程与实际教学效果分析,作者认为模拟软件教学能够作为一种重要的现代教学方法,与课堂讲授、案例教学以及社会实践结合起来,从而优化现有市场营销高等教育课程体系。     

含软弱夹层砂岩隧道开挖二维数值模拟分析

运用大型非线性有限元分析软件对含有软弱夹层砂质泥岩隧道开挖进行数值模拟,探究隧道在开挖过程中的稳定性问题。建立二维有限元分析模型;采用有限元软件的单元生死功能动态模拟开挖支护过程,采用摩尔-库伦弹塑性本构模型计算开挖过程中的位移场、应力场。并对数值模拟结果进行位移、应力分析并得出相应的结论。     

煤层顶底板突水流固耦合数值模拟研究进展

突水作为煤矿常见的主要灾害之一,对矿井的危害极大,一旦发生突水,会严重威胁人身财产安全.目前对煤矿突水的研究主要集中在采用FLAC3D与COMSOL Multiphysics软件对煤层顶底板突水进行数值模拟,其基本原理都是建立流固耦合数学模型.FLAC3D数值模拟软件通常采用充填法、留煤柱法与注浆加固法治理突水;COMSOL Multiphysics数值模拟软件通常采用注浆加固法治理突水.选取合适的软件建立流固耦合数学模型模拟突水事故发生的过程,研究采动对隔水层渗流的影响,为有相似情况的煤矿安全生产提供理论依据,对治理有突水隐患煤矿的安全生产有重大的意义.     

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.     

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。     

浅谈大体积混凝土裂缝的控制

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。     

Supply Chain Strategies in the UK Fashion Industry—The Rhetoric of Partnership and Realities of Power

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.