最小支撑树在输油管布置上的应用

输油管布置问题是现代能源社会发展中的关注热点问题,随着网络优化方法的应用,得到了快速的发展;其中涉及的工程项目的拆迁问题,也是社会的焦点问题,本文试着用最小支撑树方法来对该问题建立输油管铺设模型,并和拆迁等附加费用结合起来,得到图论最小支撑树模型。然后应用破圈法和数学软件包Mathematica函数作图法,进行函数的比较和求解。最后得到较为实用的输油管线铺设计算方法和规划思想。     

小电流供电网络系统接地与保护

小电流供电网络系统有两种类型,分为中性点不接地系统和经消弧线圈接地系统,文章主要介绍了小电流供电网络的优势以及存在的一些隐患,还探讨了小电流供电网络系统的接地保护,并对这几种不同的接地保护方式的经济性进行了相对比较分析。     

小电流供电网络系统接地与保护

小电流供电网络系统有两种类型,分为中性点不接地系统和经消弧线圈接地系统,文章主要介绍了小电流供电网络的优势以及存在的一些隐患,还探讨了小电流供电网络系统的接地保护,并对这几种不同的接地保护方式的经济性进行了相对比较分析.     

城镇圈结构模式初探——以江苏省镇江市为例

本文提出“城镇圈”的概念,指出城镇圈是城市化进程的客观要求和必然趋势。并以镇江为例结合“增长极——发展轴——经济网络”理论论述了城镇圈的发展机制和结构模式,初步探讨了城镇圈结构的机制和模式及运用城镇圈模式优化城镇体系空间结构的新思路。     

“数字营销”微博圈的实证研究——基于社会网络分析视角

以"数字营销"微博圈为实证研究对象,采用社会网络分析方法从"关注"和"互动"两个维度分析该微博圈成员特征,利用UCINET软件绘制出社群图并进行中心性和凝聚子群分析。结果表明该微博圈中明星用户之间交流频繁,普通用户则基本扮演围观的角色,存在明显的交流困境。针对此现象,提出优化建议,让微博圈的交流更加轻松和有效。     

圈层构建法——服务业体系新探

我国现有的服务业体系架构未体现出服务业发展的区域特性和服务业与生产制造业的价值联系,未反映出生产服务业、消费服务业、公共服务业的交融特性.采用圈层构建法将各种服务业分别归入生产服务圈、社区服务圈与公共服务圈可在一定程度上弥补上述不足,并为合理界定服务业的功能、辐射范围与经济规模,正确处理生产服务业、社区服务业、公共服务业的关系提供新的理论工具.     

一类节点带两重容量限制的LRP问题研究

分析了一类节点带两重容量限制的三层LRP问题:在物流网络受物流中心吞吐能力和物流网络节点最大单批处理能力两重容量限制下,如何进行物流中心选址和运输路线安排,使总的费用最小。建立了混合整数规划模型,提出了一种优化算法,并用优化算法对一个实例进行了求解。     

商业银行视角下信贷企业担保圈风险识别与预警——基于改进的脆弱性分析模型

在国内经济下行背景下,全国各地信贷企业担保圈风险相继爆发,担保圈风险已成为商业银行区域性、系统性信贷风险管控的重点。借鉴大量国内外文献的研究成果,从商业银行视角出发,将矩阵识别与担保圈网络的脆弱性分析结合,提出了一种改进的脆弱性分析模型,测度了风险阈值的合理边界。从三个阶段分析和测度,第一阶段通过矩阵识别出所有的信贷企业担保圈,第二阶段借鉴商业银行风险评价体系进行风险分类,第三阶段通过脆弱性分析预测出担保圈内违约风险最大的信贷企业。调用某省商业银行信贷企业数据库,利用该银行SAS审计信息分析系统,绘制出2016年该省某经济开发区内所有信贷企业的担保圈关系图,并进行风险识别和预警,提出风险化解措施。实证结果与该省商业银行信贷监测结果一致,该方法实现了定性和定量的有机结合,具有一定的实际应用意义和学术参考价值。     

统一借壳上市合并差额的会计处理之我见

根据财政部的规定,借壳上市应根据"壳"种类的差异分别采用反向购买法和权益性交易法处理.本文以巨人网络借壳世纪游轮为例,对比分析了采用权益性交易法与反向购买法两种不同会计处理方法对公司业绩的影响,并进一步分析了两种处理方法的理论基础,提出了统一合并差额会计处理的建议.     

PE中国局的五种力量

双汇收购案和徐工收购案体现了两种路线之争,一是儒道,另一则是法道。     

企业价值评估方法的比较及应用

文章详细分析了成本法和收益法两大类性质不同的评估方法,将各种具体的评估方式进行了正反两方面对比,界定了各自的适用范围。指出收益法占主导,成本法为补充,是我国企业价值评估业的发展方向。     

Measuring Cost Efficiency in European Banking: A Comparison of Frontier Techniques

This paper investigates the consistency of efficiency frontier methods on European banking samples. We measure the cost efficiency of banks from five European countries (France, Germany, Italy, Spain, Switzerland) with three approaches: stochastic frontier approach, distribution-free approach, and data envelopment analysis. We compare means, correlation coefficients, two public policy issues, and the correlation with standard measures of performance. In general, we conclude in favor of the lack of robustness between approaches, even if there are some similarities in particular between parametric approaches. We do, however, observe some correlation between all frontier approaches and standard measures of performance.     

住房负担能力测度方法研究综述

如何测定居民住房负担和价格可支付能力,既是开展住房保障制度建设的重要前提,也是防范住房市场风险的基础工作。对居民住房负担能力研究的重点,需要对其定义有一个十分清晰的界定与把握,选择合适和科学的住房负担能力测度方法。就国际上研究居民住房可支付能力的最主要四种方法:传统的住房支出收入比法、考虑适当住房标准的住房支出收入比法、剩余收入法以及复合测度法等做了研究综述。     

渐放弧线加点控制法在背越式跳高教学中的应用研究

本文通过对体育院系学生分组进行的加点控制助跑弧线的教学实验认为背越式跳高的教学应该改变原来单一的助跑路线模式,在初期应采用较小助跑路线进行练习以促使学生掌握正确的技术动作,在学生技术动作较为熟练以后应适当将助跑路线放大,这样先小后大的助跑路线组合明显优于传统的助跑路线,能够取得较好的教学效果。     

The housing bubble and a new approach to accounting for housing in a CPI

Over the course of the recent house price bubble in the United States, the price of homes rose rapidly from 1999 Q4 to 2005 Q4 (11.3% annually as measured by the Case-Shiller index, and 8.4% annually as measured by the Federal Housing Financing Agency) but slowly as measured by owner equivalent rents (3.4%), so measured core inflation remained relatively docile during this period, since only rents are used to measure inflation for housing services in the United States. Over the last several decades, the US Bureau of Labor Statistics (BLS) has experimented with both rental equivalence and user cost approaches for accounting for owner occupied housing (OOH) services in the CPI. We explain the basics of these approaches, and outline the BLS experiences with using them. This assessment leads us to conclude that the time has come to try a new approach: the opportunity cost approach. We argue this approach has advantages over both the conventional rental equivalence and user cost approaches, though it embeds components of the measures for both those approaches and builds solidly on the research of Verbrugge and others at the BLS. Also, we take up empirical issues that must be faced regardless of which of the approaches discussed is adopted. We explain how the repeat-sales and various hedonic regression methods can be placed in a common framework, thereby facilitating understanding of the properties of and the tradeoffs between the methods. We also consider measurement complications that arise because the land and structure components of properties depreciate at different rates.     

Scaling sustainability from the organizational periphery to the strategic core: Towards a practice‐based framework of what practitioners “do”

This paper explores what sustainability managers do when attempting to scale sustainability to a strategic level within their organization. Drawing on semistructured interview data with 44 sustainability managers in large, for‐profit companies, we identify three distinct scaling microstrategies that individuals use when scaling sustainability. We label these conforming, leveraging, and shaping. Our analysis also finds that sustainability managers deploy combinations of these microstrategies in three distinct approaches, which we call the assimilation approach, the mobilization approach, and the transition approach. Finally, we interrogate the degree to which employing these different approaches achieves a peripheral, intermediate, or strategic scale of sustainability within the organizations represented in the study. Our paper contributes to theory and practice at the interface of strategy and sustainability by developing a practice‐based Scaling Approach Framework, whereby an assimilation approach is associated with organizations with sustainability at a peripheral scale, a mobilization approach is associated with an intermediate scale of sustainability, and a transition approach is associated with scaling sustainability to a strategic level. From these results, we propose a Scaling Progression Model that reflects the phases that individuals progress through when scaling sustainability.     

论过程方法和系统方法应用于军用软件质量管理

文章概述了过程方法和系统方法，研究了相关模型，综述了这两种方法在军用软件质量管理工作中的应用，并对如何更好地应用过程方法和系统方法提出了几点看法。     

Networks in Public Administration: Current scholarship in review

Abstract

Network-focused research in public administration has expanded rapidly over the past two decades. This rapid growth has created come confusion about terminology and approaches to research in the field. We organize the network literature in public administration using compact citation networks to identify coherent subdomains focused on (1) policy formation, (2) governance and (3) policy implementation. We trace how these domains differ in their approach to defining the role of networks, relationships and actors and to what extent the articles apply formal network analysis techniques. Based on a subsequent content analysis of the sample articles, we identify promising research avenues focused on the wider adoption of methods derived from social network analysis and the conditions under which networks actually deliver improved results.     

Multi-period location of flow intercepting portable facilities of an intelligent transportation system

Intelligent transportation systems are of great importance in urban traffic management. In this context variable message signs (VMS) play a major role in providing drivers with useful information during their trips.In this paper we consider the problem of finding the optimal location of a set of portable VMS on an urban network where flow patterns change during a time horizon.We propose two original solving approaches based on flow intercepting facility location ILP models.The paper presents an application of the proposed approaches to real-like test networks and discusses the results obtained providing some indications on their practical applications.     

A feasibility study of stateful automaton packet inspection for streaming application detection systems

The rapid development of the internet has brought huge benefits and social impacts; however, internet security has also become a great problem for users, since traditional approaches to packet classification cannot achieve satisfactory detection performance due to their low accuracy and efficiency. In this paper, a new stateful packet inspection method is introduced, which can be embedded in the network gateway and used by a streaming application detection system. This new detection method leverages the inexact automaton approach, using part of the header field and part of the application layer data of a packet. Based on this approach, an advanced detection system is proposed for streaming applications. The workflow of the system involves two stages: the training stage and the detection stage. In the training stage, the system initially captures characteristic patterns from a set of application packet flows. After this training is completed, the detection stage allows the user to detect the target application by capturing new application flows. This new detection approach is also evaluated using experimental analysis; the results of this analysis show that this new approach not only simplifies the management of the state detection system, but also improves the accuracy of data flow detection, making it feasible for real-world network applications.