首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 62 毫秒
1.
《价值工程》2016,(24):64-65
敏感性分析是公路建设项目经济评价中的重要内容,通常计算繁琐,工作量较大,本文通过举例说明将excel模拟运算表应用在公路建设项目敏感性分析中,大大简化了计算过程,具有较好的实用价值。  相似文献   

2.
赵庆权 《价值工程》2013,(12):82-83
编制高速公路补充预算定额需要大量的观察测量,这些观测数据是预算定额定量及定性的记录,是科学研究预算定额的重要基础,因此其质量的好坏直接关系到定额最终成果的正确性和科学性。国际上常推荐采用格拉布斯(Grubbs)准则法,本文在高速公路补充预算定额的研究中采用改进型格拉布斯准则法,主要探讨改进型格拉布斯准则法以及如何借助于excel工具简化计算该法。  相似文献   

3.
《价值工程》2017,(15):101-103
载荷方程的建立在飞行载荷测量中占有重要地位,直接关系着飞行载荷测量的准确度。本文基于主成分分析的思想,提出了一种通过提取真实飞行中多个应变计数据的投影主轴,重组校准数据来建立载荷方程的新方法。相比较传统方法,在载荷方程建立过程中能应用更多的应变计数据信息,并且将真实飞行过程中的应变计数据信息应用到了载荷方程的建立过程中。最后通过实例验证了该方法建立的载荷方程抗干扰能力更强,得到的飞行载荷与实际情况更加吻合,得到的结果更真实。  相似文献   

4.
张宏哲 《价值工程》2014,(19):182-183
随着上海期货交易所在国际金融市场中地位的提高以及我国经济发展对铜金属的需求增加,对于沪铜期货价格的研究也显得愈发重要。本文通过spss的曲线估计和非线性回归方法,对沪铜连续标准合约年中间价格进行了短期预测,并应用excel生成折线图功能对几种多项式预测方程进行了对比分析,综合考虑,三次多项式方程较为合理。  相似文献   

5.
节约里程法适用于一个配送中心面向多个客户的配送路线选择且配送起点和终点相同的路径规划问题。文中基于传统节约里程法的原理、计算步骤及其弊端,重点讲述了如何利用excel操作来实现节约里程法在配送路线选择中的应用及该方法的优点。  相似文献   

6.
苗方利 《中外企业家》2013,(8S):249-249
笔者提出了一种应用拟合法来求解软土压缩过程中固结系数的方法,在应用时间平方根法来计算固结系数时,利用常间的origin、excel软件对整个曲线和初始段分别进行指数和直线拟合,大大减小人为作图的影响,提高计算的精度。应用该方法对一系列固结试验结果进行处理,与人工绘图法相比本方法能够有效地减小人为误差、提高效率,具有可行性;还可应用于回弹过程中固结系数的计算。  相似文献   

7.
近年来实物期权理论由于其动态性的特征越来越多地应用于资本预算及价值评估。常见的实物期权有扩张期权、时机选择期权和放弃期权,其中放弃期权计算较为复杂。本文拟将excel应用到放弃期权的计算分析中,以减少评价工作量。  相似文献   

8.
科学的测量不确定度的评定是对测量结果偏离真实值的程度进行定量分析的过程。本文以检测实验室混凝土试模自校准中,长度的测量不确定度评定过程来分析在具体的评定过程中如何选取评定的分量、一些典型的分量如何评定计算。  相似文献   

9.
文章主要讲述利用excel办公软件,按照常用的导线测量成果计算本的样式,直接编辑导线测量的正算和返算软件,并形成固定的模版,  相似文献   

10.
图解法和试算法是计算正常水深和临界水深通常采用的方法,但计算精度欠佳且计算步骤繁杂。文章提出了一个新的迭代方程用于上述2种水深的计算,并用代数方法严格地证明了该方程具有收敛性。  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.
En este estudio se analiza el incumplimiento del salario mínimo durante el periodo 2003–2012 en diez países de Europa central y oriental con salario mínimo obligatorio nacional. A partir de los datos de EU‐SILC y la metodología propuesta por Bhorat, Kanbur y Mayet (2013), se cuantifica la incidencia y magnitud del incumplimiento. Se realizan análisis de regresión sobre determinantes individuales, laborales y macroeconómicos. Aunque la incidencia permanece relativamente baja, los trabajadores a los que se dirigen las políticas de salario mínimo parecen los más expuestos a su incumplimiento. Con el tiempo, una mayor incidencia se asocia a una razón más alta entre salario mínimo y salario medio.  相似文献   

13.
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   

14.
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   

15.
While a growing body of research analyses the functional mechanisms of the cultural or creative economy, there has been little attention devoted to understanding how local governments translate this work into policy. Moreover, research in this vein focuses predominately on Richard Florida's creative class thesis rather than considering the wider body of work that may influence policy. This article seeks to develop a deeper understanding of how municipalities conceptualize and plan for the cultural economy through the lens of two cities held up as model ‘creative cities’ — Austin, Texas and Toronto, Ontario. The work pays particular attention to how the cities adopt and adapt leading theories, strategies and discourses of the cultural economy. While policy documents indicate that the cities embrace the creative city model, in practice agencies tend to adapt conventional economic development strategies for cultural economy activity and appropriate the language of the creative city for multiple purposes.  相似文献   

16.
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   

17.
Despite the establishment of high-tech multinational enterprises (MNEs) in Ireland since the late 1950s, the country did not succeed in closing the technological gap with most of its EU counterparts. The weak National System of Innovation (NSI), and in particular low business and government R&D levels, combined with a lack of research and technology linkages between MNEs and indigenous firms, explain these poor results. However, the Shannon region in the West of the country presents some specific institutional characteristics that could theoretically make the region a strong technological enclave. The various actors in the region - i.e. the administrative, financial, political and research institutions, as well as the business organizations - have indeed infused a new type of economic development. After a brief review of the available concepts and models articulated around these actors and their interrelationships, the paper analyses whether the Shannon region, taken as an illustrative example, mirrors a specific economic and technological localized setting. The study is based on a survey of indigenous and foreign firms.  相似文献   

18.
This article reviews discrimination and diversity research published in Human Resource Management (HRM) over the past 60 years. While discrimination and diversity are very different constructs, it is often informative to study them together, because when people recognize each other's diversity, this can result in bias, stereotyping, and discrimination. We conducted bibliographic searches for terms related to discrimination and diversity as well as a manual search through every title and abstract published in HRM over the last 60 years to assess article relevance. The search resulted in 135 research articles with 136 unique studies (i.e., samples) which are reviewed in this article. Sex and race are the demographics that have been examined the most in HRM, while religion has been examined the least. Moreover, the number of studies examining lesbian, gay, bisexual, transgender, and queer (LGBTQ) employees in the workplace in HRM has grown quickly within the past 10 years, culminating in a recent meta‐analysis. Our review looks at some of the earliest research published, the most recent research published, and the overall trends we identified in the research over the years for both discrimination and diversity articles. We then make future research suggestions and recommendations to advance the study of discrimination and diversity in the coming years.  相似文献   

19.
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   

20.
The Early History of the Cumulants and the Gram-Charlier Series   总被引:2,自引:0,他引:2  
The early history of the Gram-Charlier series is discussed from three points of view: (1) a generalization of Laplace's central limit theorem, (2) a least squares approximation to a continuous function by means of Chebyshev-Hermite polynomials, (3) a generalization of Gauss's normal distribution to a system of skew distributions. Thiele defined the cumulants in terms of the moments, first by a recursion formula and later by an expansion of the logarithm of the moment generating function. He devised a differential operator which adjusts any cumulant to a desired value. His little known 1899 paper in Danish on the properties of the cumulants is translated into English in the Appendix.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号