锦江特大桥68+128+68m连续梁0#块托架设计研究

针对铜川—玉屏铁路线锦江特大桥68+128+68m连续梁0#块托架设计计算为工程实例,对连续梁0#块托架的设计计算过程进行了详尽的论述,并结合有限元仿真计算软件Midas对0#块托架各受力构件进行建模数值分析。表明:针对锦江特大桥68+128+68m连续梁0#块托架设计符合力学性能要求。     

A decision method for supplier selection in multi-service outsourcing

Although supplier selection in multi-service outsourcing is a very important decision problem, research concerning this issue is still relatively scarce. This paper proposes a decision method for selecting a pool of suppliers for the provision of different service process/product elements. It pioneers the use of collaborative utility between partner firms for supplier selection. A multi-objective model is built to select desired suppliers. This model is proved to be NP-hard, so we develop a multi-objective algorithm based on Tabu search for solving it. We then use an example to show the applicability of the proposed model and algorithm. Extensive computational experiments are also conducted to further test the performance of the proposed algorithm.     

The antecedents of digital collaboration through an enhanced digital platform for destination management: A micro-DMO perspective

While the tourism sector shifts towards digital transformation, Destination Management Organisations (DMOs) often struggle to adapt to their changing technological environment. This study explores the antecedents of digital collaboration and develops a framework for micro-DMOs to enhance effective destination management through digital technologies. An integrated sequential qualitative approach was adopted by conducting multi-phase interviews, in addition to designing and trialling a real-world trial digital platform. The research provides empirical evidence that digital collaboration is essential for micro-DMOs, necessitating them to transform their current “websites” into digital platforms which act as a hub for business stakeholders to actively be involved in. Antecedents of successful digital collaboration include mutuality, trust, control, and leadership which may be manifested differently from non-digital collaboration. Additionally, the study identifies three aspects for digital collaboration; marketing, networking and knowledge sharing that demands specific attention. Our results have theoretical, methodological, and practical implications for academia, industry and policymakers.     

INFORMATION AGGREGATION,GROWTH, AND FRANCHISE EXTENSION WITH APPLICATIONS TO FEMALE ENFRANCHISEMENT AND INEQUALITY

We develop a model of voluntary gradual franchise extension and growth based on the idea that voting is an information aggregation mechanism. A larger number of voters means that more correct decisions are made, hence increasing output, but also implies that any incremental output must be shared among more individuals. These conflicting incentives lead to a dynamic model of franchise extensions that is consistent with several real world episodes, including female enfranchisement. The model also predicts that in certain circumstances growth and enfranchisement will be accompanied by Kuznets curve type behaviour in inequality. Contrary to the preceding literature these conclusions do not rest on incentives for strategic delegation.     

高墩悬臂牛腿设计与施工

本文根据沪昆客专跨河大跨度连续梁高墩0#块施工作为背景,结合0#块现浇牛腿的设计与施工,优化常规设计,达到安全可靠,节约成本的的目的,可为同类型施工提供参考。     

发达国家中小企业税收政策对我国的启示

发达国家非常重视中小企业,采取种种税收鼓励措施扶持其发展。我国没有建立起规范的中小企业税收制度,政策优惠力度不足,增值税制不完善,需要进一步建立与完善有利于中小企业发展的税收政策体系,提高税法级次,调整现行政策,加大对中小企业的税收支持力度,促进中小企业的快速发展。     

财政支农的市场一体化效应及其政策

以增加农民收入从而支撑具有产业、区域特征的市场一体化为视角,对财政政策不同的支农方式和支农工具所产生的不同的农业市场一体化效应进行了分析,认为直接收入补贴明显好于价格支持;间接支农优于直接支农;而且不同的支农项目对市场一体化的促进作用差异显著。为此,提出了逐步减少价格支持,增加直接收入补贴,增加财政间接支农力度,引导农业生产要素多渠道利用,促进农业系统内外部合作,重视三农无形资产,建立适当监督机制等政策建议。     

中国-欧盟信息通信技术合作的契机与挑战

中国与欧盟在信息与通信领域的科技合作始于20世纪80年代。多年以来,信息通信一直是欧盟直接对华投入最大的科技合作领域。中国与欧盟信息通信技术合作机制不断完善,合作方式日益多样化。中国与欧盟互有需求,法律框架提供了制度保障,合作机制日臻完善,加之中国与欧盟成员国之间有友好合作的基础,种种有利条件使信息通信合作成为中国与欧盟科技合作的重点领域之一并具有很大发展空间。     

新加坡实施以知识为基础、创新为驱动的国家战略

本文描述了新加坡建设以知识为基础、创新为驱动国家所做的努力,尤其是受世界金融危机冲击的2010年间所出台的重大举措。在第四个科技五年计划结束、第五个科技五年计划即将启动的关键时刻,新加坡总结了前五年推动科技进步的成就,决定采取增加R＆D投入,到2015年把新加坡R＆D总支出提高到占GDP的3．5％等综合措施,并继续强力推行国家研究一创新一创业战略。     

白俄罗斯科技发展现状

白俄罗斯政治稳定,经济发展潜力大。该国一贯倡导科技创新,尤其后金融危机时期制定了一系列鼓励技术创新的政策,并加大科技研发投入,积极拓展国际科技合作。近年在加强与独联体国家科技合作的同时,不断开展与欧盟和亚洲国家的合作。与中国的科技合作一直是其对外交往的重中之重。近年来,两国问开展了多层面多领域的合作,取得了诸多务实的成效和成果,为双方形成互利双赢的科技合作局面打下了良好基础。