考虑多类型产品新鲜度的生鲜配送路径优化

生鲜产品由于其特殊性,在配送过程中存在损耗。针对不同种类的生鲜产品,差异化新鲜度敏感系数,引入生鲜努力保鲜系数,构建生鲜产品新鲜度函数,同时考虑固定成本、运输成本、制冷成本、货损成本及时间惩罚成本,构建了生鲜配送路径优化模型。设计混合遗传粒子群算法进行求解,验证了模型的合理性及算法的有效性。对比不同的生鲜努力保鲜系数对各项成本的影响,得出综合成本最优的保鲜策略,为生鲜企业末端配送优化提供参考。     

中国林业碳汇市场期货交易产品设计研究

目前我国碳交易市场仍处于发展初期,碳产品仅限于碳排放配额、自愿减排量等碳现货,由碳期货带来的套期保值、规避风险等功能也让渡给了国外投资者。因此,分析北京环境交易所的产品类型以及所存在问题,可为我国借鉴欧洲碳期货市场的构架提供理论依据和支撑。从而设计符合中国碳交易市场发展现状的碳期货产品,丰富国内碳产品类型,进一步活跃市场,满足不同需要,降低市场的风险。     

应用型本科院校图书馆服务满意度量表设计

图书馆服务满意度是通过测评来了解图书馆所提供的服务是否能够满足读者的实际需求.我根据应用型本科院校图书馆提供服务的实际情况,在LIBQUAL＋ TM的基础上,初步设计出应用型本科院校图书馆服务满意度量表,同时对该量表进行信度和效度的检验,完善后的量表包括5个维度19个指标,符合量表的信度和效度要求,说明该量表对应用型本科院校图书馆服务满意度的测量具有一定的参考价值.     

通用桥式起重机主梁自重对拱度的影响及修正

通用桥式起重机主梁上拱度是起重机的重要技术指标,因此生产检测中所测的拱度值必须保证是准确可靠的。而在进行起重机桥架结构时,由于各种条件的限制,支架位置常常处于0.8倍跨度处,此时主梁自重对主梁拱度产生的影响值会有偏差,造成测得的主梁上拱度值是不准确的,因此需要对该值进行修正。通过生产实践总结和理论计算相结合,可准确得出支架位置在0.8倍跨度处主梁自重对主梁上拱度的影响修正值,此时测得的拱度值再减去修正值后就是准确的拱度值。     

Irbesartan and amlodipine in the treatment of patients with microalbuminuria,hypertension and type 2 diabetes in Taiwan: a modelling projection over 25 years

Summary

This modelling study aimed to evaluate the long-term cost effectiveness of four treatment strategies: early irbesartan; late irbesartan; amlodipine; and standard hypertensive treatment in patients with diabetes, hypertension and microalbuminuria in Taiwan. A Markov model was used to project costs and clinical outcomes over lifetimes.

Early irbesartan (initiated in microalbuminuric patients) yielded the largest improvements in life expectancy (0.78 years) compared with standard treatment. Late irbesartan and amlodipine (started in patients with overt nephropathy) also resulted in slight improvements in life expectancy (0.109 and 0.001 years, respectively). Both early and late irbesartan reduced lifetime costs compared with control (US$7,603 and US$3,233, respectively), whereas amlodipine increased lifetime costs by US$300. Improvements were attributed to reductions in the cumulative incidence of end-stage renal disease with early use of irbesartan.

Treating hypertensive diabetic patients with early irbesartan was projected to be life extending and cost saving, and to reduce the incidence of ESRD in Taiwan.     

知识型员工压力研究文献综述

本文回顾近十年来知识型员工压力研究文献,从研究方法、量表类型和文献观点等视角展开逻辑梳理,对其压力源、压力源体验影响因素和压力管理策略等分类统计,得出近十年来该领域的主要研究趋势和结论。     

国外道路建设用沥青新型混合料

历史经验表明，经济危机往往孕育着新的科技革命。正是科技上的重大突破和创新，推动经济结构的重大调整，提供新的增长引擎，使经济重新恢复平衡并提升到更高水平。道路建设中的沥青新型材料就是在科技的引领下，不断推陈逝新。     

中国模式:后发优势与低成本发展

人类的发展进程是有成本的,它由发展的资源成本、环境与生态成本、时间成本和社会成本构成。各国都在探索自己的最优发展路径—低成本发展。而我国新型工业化道路的确立,就旨在利用低成本发展这一后发优势。     

发挥风险投资在促进创新型中小企业成长中的作用

风险投资家不仅为创新型中小企业提供了股本支持，而且还运用自身丰富的管理经验、专业能力及社会网络，向创新企业家提供其所缺乏的管理服务。风险投资这一创新的投资方式，使其成为推动创新型中小企业发展的不可替代的力量。要发挥风险投资在推动创新型中小企业发展中的巨大作用，必须遵循风险投资交易的规律，一方面要大力发展我国的风险投资业，另一方面要增强创新型中小企业吸纳风险投资的能力。     

Shopping Benefits of Multichannel Assortment Integration and the Moderating Role of Retailer Type

To what extent should multichannel retailers integrate assortments across channels? Previous literature controversially discusses the question of which integration strategy is most successful but arguments are only conceptual, and no empirical assessment exists. This article presents a framework that (a) shows how customers’ perceived shopping benefits of variety, convenience, and reduced risk mediate the impact of multichannel assortment integration (full, asymmetrical, no) on patronage intentions and (b) differentiates the impact for retailer types based on substitutive, complementary, and independent assortment relations. Two large-scale experimental studies empirically investigate whether a dominant integration strategy exists in the context of full and simultaneous information (Study 1) and more uncertain and subsequent information accessibility (Study 2). We consistently find that full integration dominates no integration across assortment relations, but asymmetrical integration—the strategy that is most often realized by multichannel retailers—can have a detrimental impact for substitutive relations compared with no integration. Asymmetrical integration can be more beneficial than full integration for independent relations, while customer outcomes differ less for complementary relations. Researchers and managers can use our findings to understand how shopping benefits of variety, convenience, and reduced risk explain the different customer outcomes of multichannel assortment integration, depending on retailer type.