基于WEB的服务组合系统设计与实现

服务组合是通过重用已有的Web服务满足用户高质量的应用需求的一种技术手段,是面向服务架构研究领域的热点问题。本文采用基于业务流的服务组合方式,设计并实现基于Web的服务组合系统,并结合校园用户需求给出并讨论了服务组合的实际案例。     

Reconstructing production efficiency,land use and trade for livestock systems in historical perspective. The case of France, 1961–2010

This paper provides an original accounting of changes in livestock production efficiency per livestock category in historical perspective and connects livestock consumption with land requirements and virtual land trade. We use France as a demonstration study and account for productivity changes in terms of energy. Feed rations composition are reconstructed per livestock production and feed crop group over time to account for changes in land use in relation to dietary changes. Land requirements for consumption in France dropped by 28% over the study period besides an increase by 35% of the human population and by 53% of the livestock consumption. The two-fold increase in agricultural productivity is due, for half, to energy conversion efficiency improvements and for half to agricultural yields. Overall, the livestock energy conversion efficiency increased by 45% from 1961 to 2010, poultry gained 84%, pork 17%, sheep&goat 67% and cattle 27%. The feed share of oilcrops and cereals in animal rations doubled against a drop by 35% of feed from pastures. Virtual land imports for oilcrops in relation to livestock consumption in France today amount to 0.9 million ha against a maximum of 1.9 million ha in 1979. Besides its dependence on oilcrops imports, the French livestock sector displays net virtual land exports ranging from about 2.5–5.3 million ha per year over the study period. Gross virtual land trade is today five times higher than the net virtual trade. The difference highlights the share of circular product loops in increasingly integrated agricultural markets at the international scale.     

楚文化丝织刺绣探析

中国是世界上最早生产丝绣品的国家之一.东周时期楚国纺织和刺绣技术的迅速发展,生产规模日益扩大,品种多样,织造精细,花色秀丽多变且色彩鲜艳,组织结构复杂.本文将从楚国时期现存的丝绣品中探析其种类、纹样、色彩及其构图结构.     

Financial stress and sovereign debt composition

Using a panel of 13 advanced economies for the period 1980–2012, we find that periods of impaired financial intermediation mainly accrue to maturity mismatches in sovereign debt. Thus, a higher (lower) share of short-term (medium and long-term) debt leads to an increase in the financial stress index. From a policy perspective, our work suggests that debt management policies translated into longer average maturities of sovereign debt not only reduce the expected debt servicing cost, but also mitigate strains in the financial sector.     

高速公路机电工程电力监控系统的重要性

文章介绍了机电工程电力监控系统的功能及系统组成,探讨了在高速公路应用该系统的重要性。     

面向多元利益主体的公共项目价值模型研究

文章界定了公共项目多元利益主体的价值构成,绘制了多元利益主体的价值关系网,并以此得出公共项目各利益主体价值量的大小虽不是完全受政府项目公司价值量的大小而决定,但是很大程度上是受到项目公司决策及管理的影响,其价值量大小与公共项目价值、项目公司价值量的大小成正相关关系的结论,并据此得出了公共项目的价值模型。此模型说明了面向多元利益主体的公共项目需要把各利益主体的价值因素加以考虑,只有对各种利益主体利益兼顾与均衡,实现其价值,才有利于公共项目长期价值的创造和促进公共项目的持续健康发展。     

Volatility,Depth, and Order Composition: Evidence from a Pure Limit Order Futures Market

This paper investigates market behaviors (such as volatility, depth, and volume) and order-flow decomposition in a pure limit order futures market, the Taiwan Futures Exchange. The results are different from those in equity markets due to relatively high adverse selection costs in futures markets. We show that a volatility (depth) increase is followed by a depth (volatility) decrease; a market order increase (decrease) subsequently induces higher (lower) volatility; and a limit order increase (decrease) results in more (less) market orders and limit orders. When the upside (downside) volatility rises, buyers decrease (increase) subsequent limit bid orders, and sellers increase (decrease) limit ask orders.     

工学结合高职人才培养模式的基本内涵、构成要素分析

根据《教育部财政部关于实施国家示范性高等职业院校建设计划加快高等职业教育改革与发展的意见》和《教育部关于全面提高高等职业教育教学质量的若干意见》，文章解读了高职教育内涵建设和工学结合的深刻含义．分析了工学结合人才培养模式的内涵、构成要素，以及各要素之间的相互关系，分析了企业在工学结合人才培养中的作用。     

The Effects of Fiscal Consolidation and Welfare Composition of Spending on Electoral Outcomes: Evidence from US Gubernatorial Elections between 1978 and 2006

This study attempts to make a contribution to the field of spending aspects of fiscal policy and their impacts on electoral outcome. Due to varying degrees of financial responsibilities and commitments to provide public goods and services, US state governments serve as a perfectly natural laboratory to test the electoral significance of fiscal policies. We adopt a probit model, with several specifications, to determine significant impacts of fiscal consolidation and increases in welfare spending on US gubernatorial elections from 1978 to 2006. The analyses show that voters are more concerned about the increase in debt than current budget deficits. An increase in welfare spending is negatively associated with reelection. Moreover, the impact of taxation on gubernatorial elections turns out to be insignificant. In particular, findings suggest that the political business cycle model does not hold true in US gubernatorial elections. Expansionary fiscal policy right before the election may not have crucial impacts on the chances of an incumbent winning the election.     

城市规模与城市产业结构的关系研究

本文通过比较中国不同规模城市产业发展之间的差异,研究中国城市规模与产业结构之间的关系。研究结果表明：采掘和电力行业的竞争力与城市规模之间表现出典型的专业化特征,但多数具有较强比较优势的城市规模较小;制造业整体的竞争力与城市规模之间表现出“倒 U 型”关系,500万—1000万人的城市比其他规模的城市表现出更强的制造业竞争力;制造业内部多数行业表现出专业化特征,以资源为基础的和中间投入品制造业在规模较小的城市表现出更强的比较优势,消费品和资本品产业竞争力与城市规模呈“倒 U 型”关系;服务业整体的竞争力与城市规模之间表现出微弱的“U 型”关系,生产性服务业、房地产和文化娱乐业表现出较强的直接层次对应关系。