资源节约型、环境友好型农业发展状况的混合聚类评价

基于湖南省的资源节约型、环境友好型农业发展状况的实际情况,在建立＂两型社会＂区域农业发展状况指标体系的基础上,采用基于K-means聚类和层次聚类的混合聚类方法,对湖南省14个市州的＂两型社会＂区域农业发展状况进行评价。湖南省＂两型社会＂农业发展区域划分的备选方案可为有关部门提供决策参考。     

Innovation in Euromarket hybrid funding instruments

This paper considers case studies of the use of innovative hybrid funding instruments—which have features of debt and equity issued by UK companies in the Euromarket. It considers why these instruments were developed and how they utilise the ‘grey areas' in accounting and tax regulations to achieve what managers perceive to be the main benefits of each. One of the major influences on the choice of funding instruments for a number of companies involved in acquisitions in the late 1980s was their accounting and tax treatment. the search was for cost effective finance which at the same time contributed a premium to blunt the purchased goodwill write-off. Group reserves have no legal significance but goodwill write-offs can have consequences for a group constrained by borrowing restrictions (based on its balance sheet figures). the concern with the shape of the balance sheet and the ratios calculated using these figures, combined with perceived beliefs about the tax advantages of borrowing led to the development of the Euroconvertible Preference Share issues by subsidiary companies in 1989. the tax authorities removed the attraction of this instrument to issuers. However, the innovative process continued and similar accounting and tax explanations influenced the design of another major category of hybrid—the Convertible Capital Bond. Accounting regulators have reacted to this hybrid by producing new guidelines which have removed its benefits and therefore its attraction to companies. Nonetheless, the process of innovation continues and a new instrument—the Irredeemable Convertible Bond—has been developed.     

软测量在腈纶聚合质量指标控制中的应用

用混合模型技术，建立聚合反应过程质量指标的软测量模型，对现场检测数据进行深层加工处理和应用软测量技术开发工程应用软件，对工艺质量指标实时检测和显示，充分利用DCS系统和上位机软件的功能优势，解决工业实际问题。实验证明所开发的软测量模型精度满足了工程要求，与人工分析值比较，相对误差≤2．5％，完全能够满足工艺生产控制要求的。     

并联混合动力汽车动力系统电辅助控制策略研究

并联混合动力汽车因为有不同的工作模式,时刻需要来判断当前处于那种工作模式,此外还需要优化各部件之间的协调和工作效率、降低油耗和尾气排放、提高操控性能,并联混合动力汽车(PHEV)对整车协调、工作模式的判断调整、能量控制等方面有更多的要求。本文对并联混合动力汽车动力系统的电辅助控制策略做了一定的分析。     

基于过采样的混合滤波器组性能优化

模拟误差是制约混合滤波器组信号重构精度的主要原因,如何降低由模拟误差导致 的分解滤波器组系数误差成为了首要问题。引入过采样技术,研究在不同过采样率下8通道 混合滤波器组的性能,寻找到过采样率最优值约等于7%。在不同模拟误差下对基于过采样的 混合滤波器组的性能进行仿真,结果表明,原型结构和双阶型结构的混叠值相近,但后者对 模拟误差的敏感度比前者大。信号重构阶段,在最小二乘法的基础上采用频带加权法进行误 差校准。在1%模拟误差内,采用7%过采样率的原型混合滤波器组相比无过采样,平均混叠值 下降了约50 dB,最大混叠值下降了约94 dB。仿真验证了引入过采样的有效性。     

基于混合多属性决策的TRIZ集成创新方法评价

从TRIZ集成创新方法分析和解决矛盾问题的角度,结合TRIZ理论的39个工程参数,构建了TRIZ集成创新方法的综合评价指标。对区间数相离度和可能度偏差最大化多属性决策的方法进行了改进,将区间型数据与精确型数据相统一,建立了混合数据指标的评价模型,并说明了算法步骤,解决了TRIZ集成创新方法的混合多属性评价与决策问题。通过算例说明了混合多属性决策在产品设计创新方法中的评价与选择过程。     

Psychosocial Outcomes as Motivations for Visiting Nearby Urban Green Spaces

High-density urban living means that urban green spaces are important nodes of contact with nature. This study examines expected outcomes that motivate people to seek green spaces in urban settings. A sample of Swiss residents were presented with Shin, Kwon, Hammitt, and Kim's (2005 Shin, W., Kwon, H., Hammitt, W. and Kim, B. 2005. Urban forest park use and psychosocial outcomes: A case study in six cities across South Korea. Scandinavian Journal of Forest Research, 20(5): 441–447. [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]) psychosocial outcomes scale and asked which activities they choose to undertake in nearby natural areas. The most important motivations for visiting nearby green spaces were related to restoration, with social bonding as a desirable side benefit. There were few observable differences between urban and rural residents and level of education attained. Older people are motivated to visit nearby green spaces by the wish to seek social contact while younger people are motivated by the wish to seek escape and to reflect. This study contributes to the understanding of the psychosocial outcomes that residents expect from engaging in an activity in an urban green space.     

Supply chain analysis of e-tailing versus retailing operation – a case study

The swift growth of e-commerce or e-tailing as a consumer retail channel has made it a serious competitor to traditional retail channels and is changing consumers’ purchasing behaviour. The purpose of this case study, based on Target and Amazon.com, is to analyse the attributes of traditional retailing, e-tailing, and hybrid supply chain models to form conclusions about the feasibility of an idealised supply chain model for the future. An integrated and generalised modelling framework is used that incorporates Six Sigma – define, measure, analyse, improve, control methodology leveraging various tools, including process flow maps, cause and effect diagram, performance efficiency metrics, failure mode and effects analysis (FMEA), and Monte Carlo simulation. Based on this analysis and research, the conclusion is that the idealised supply chain of the future may evolve into a hybrid supply chain, which includes both e-tail and retail channels. The main recommendations from this study include assessing the risks of migrating to such a hybrid supply chain and to leverage the recommended actions provided in the hybrid FMEA. To facilitate more effective and mature processes, this study can guide researchers in exhaustive empirical evaluations of hybrid supply chains, gather experiences and lessons learned for practitioners.     

Safe Minimum Standards in Dynamic Resource Problems: Conditions for Living on the Edge of Risk

Safe Minimum Standards (SMSs) has been advocated as a policy rule for certain environmental problems where uncertainty about risks and consequences are thought to be profound. This paper explores the rationale for such a policy within both static and dynamic frameworks and derives conditions for when SMS can be summarily dismissed as a policy choice and for when SMS can be defended as an optimal policy based on standard economic criteria. It turns out that these conditions can be checked with quite limited information about damages and risks. In order to analyze the SMSs in a dynamic setting, we develop a method for solving optimal control problems when state space is divided into risky and non-risky sub-sets.      

基于线性规划模型预测杂交水稻种子纯度

本文基于matlab语言和线性规划模型,建立了一种新的杂交水稻种子纯度预测的数学模型,并利用matlab GUI工具设计了杂交水稻种子纯度预测软件界面程序。在已知a/A拷贝数比的情况下,可以直接由软件计算出待测水稻种子纯度范围,适用于杂交水稻种子纯度快速初筛。