单车场无时间窗甩挂运输车辆调度的启发式算法

考虑了牵引车空驶、带空挂车行驶和带重挂车行驶所引起的成本差异，定义了牵引车运行成本的概念，将总运行成本最小作为调度方案优劣的判别指标，并同时考虑牵引车数量最少。将牵引任务分为四种类型，定义了任务链、虚拟任务、链内交叉和链间交叉的概念，提出了一种求解该类单车场甩挂运输车辆调度无时间窗约束的启发式算法，包括初始调运方案、链内优化、空车调运交叉、牵引车数量优化和链间交叉。最后给出了仿真算例，算法优化后的最终方案与初始方案相比，牵引车数量减少，总运行成本降低，验证了算法的有效性和可行性。     

色谱质谱技术在食品安全分析检测中的应用

社会飞速发展,人们生活水平不断提高,随着食品种类增多,相应的食品安全问题显的十分严重。色谱质谱技术是新时期食品安全分析检测应用的主要方法之一,在检测食品安全质量时能够发挥全面有效作用。本文主要分析色谱质谱技术在食品安全分析检测中的应用,并提出一些实际应用建议。     

眉山市森林食品产业发展现状及对策

通过分析眉山市森林食品产业发展现状,指出眉山市森林食品产业发展中存在的问题,并提出解决问题的对策,为今后眉山市森林食品产业的发展提供参考。     

红砂岩地区基坑开挖对周边建筑物的影响

本文通过对衢州地区的一个深基坑工程周边的学校食堂、宿舍的建筑物沉降的监测和分析,探讨了红砂岩基坑开挖对周边建筑物产生的影响。监测结果表明,基坑开挖会引起周边建筑物不同程度的沉降变形,且主要发生在基坑开挖前的打桩阶段和基坑开挖阶段。两栋建筑物的沉降累计值基本已超过20mm,且最大的沉降量已接近40mm,较大程度超过房屋沉降监测警戒值,说明开挖的施工方案有待于进一步优化,此结论对于红砂岩地区基坑工程施工具有重要的工程意义。     

我国农村土地流转问题及对策——以重庆市合川区为例

土地流转是我国改革开放以来农村土地改革的一大难题。通过对重庆市合川区农村土地流转问题的问卷调查,从中发现农村土地流转方式主要以出租为主,其中大部分农民都会选择中短期转让,并且土地转让后土地出现多元化使用,也适当的增加了农民的收入。研究探讨出土地流转过程中存在的主要问题,发现目前农村土地流转过程中正规化程度不高,规模化转让偏低,相关的服务与福利也不够完善等问题,并在已有问题的基础上给出了相应的对策建议,强调了政府在这一转让过程中所要发挥的重要作用和对相应政策的改进与大力宣传。     

An Application of the Dynamic Network DEA Model: The Case of Banks in Taiwan

ABSTRACT

In this study, we apply the dynamic network slack-based measure data envelopment analysis model (DNSBM) to measure the efficiency of Taiwanese banks during the period 2005–11. Using the network structure, we define intellectual capital creation capability as one of the production stages. In order to capture the dynamics of the transformation process, the nonperforming loans and loan loss reserves are defined as carryover items. This study offers sufficient information for managers to understand not only the overall performance of their banks but also the efficiency of each production stage and the dynamic changes of the overall and divisional efficiencies.     

城市地铁系统发展规模与建设时机研究

利用全世界各地地铁系统发展相对完善的城市特征数据进行关联分析,论证城市地铁系统合理建设规模;利用国内已开通运营地铁城市特征数据构建规格化分析指标,判断地铁系统适宜的建设时机.研究结果表明:城市地铁系统发展规模与城市人口规模呈现正相关关系,但人均拥有地铁里程与线网客流强度呈现负相关关系;地铁系统建设时机则与市区常住人口数、人均GDP、一般公共预算收入、建成区人口密度等高度相关.     

强制减排和碳偏好影响下的制造商产能决策

为了研究在政府给定碳排放总量的约束下,面临随机需求的制造商的产能决策问题,在改进报童模型的基础上,比较了碳排放总量约束前后的制造商最优产量和单位产品减排量的变化,发现了排放总量约束使得最优产量减少。然后,在市场减排努力函数拉动需求的前提下,给出了制造商的最优产量和单位产品减排量之间的关系式,并且证明了减排努力函数可以是任意线性函数或者非线性的凹函数。最后通过算例分析印证了结论。     

Unemployment as an Adverse Trigger Event for Mortgage Default

The Journal of Real Estate Finance and Economics - There is limited evidence of the role of household-level adverse trigger events in driving mortgage default, and the evidence based on proxies,...     

The Role of Product Originality,Usefulness and Motivated Consumer Innovativeness in New Product Adoption Intentions

Prior research has posited that product attributes are primary drivers of success that a firm must consider to develop a competitive advantage. Two product attributes, originality and usefulness, have been identified in the literature as significant dimensions of new product success. Customer demands differ, and more purchase intentions toward a new product depend on how consumers connect the product attributes to their own individual characteristics. Studying motivated consumer innovativeness as a personality trait may improve our understanding of the motivations for adopting innovations; however, questions remain regarding whether the effects of originality and usefulness on consumers' intentions to adopt are different when levels of these attributes are matching or dissimilar and what the relationship is between these effects and motivated consumer innovativeness. This study seeks to empirically investigate these effects and their relations by collecting data from 560 potential consumers in China. This paper uses hierarchical regression analysis to test hypotheses in four product domains as representative of higher or lower levels of usefulness and originality. The research shows that new product originality affects consumers' intentions to adopt new products only if it matches the level of new product usefulness. The results also reveal that motivated consumer innovativeness has a positive moderating role on the relationship between new product originality and consumers' new product adoption intentions when both attributes are at a lower level. The theoretical and practical implications for new product development and marketing communications are discussed.