辐照处理对食品真空包装材料主要性能的影响

本文通过实验,研究不同辐照加工剂量对不同类型真空包装材料稳定性的影响,确定辐照剂量与材料性能的关系,对确定合适的辐照包装材料具有重要的意义。     

体育服装企业物流管理信息系统的设计研究

针对体育服装企业物流信息系统的特点,对整体系统框架进行设计,对采购管理、库存管理、销售管理、远程管理和货物配送管理等主要功能模块进行分析,建立全新的供应链系统,从而提高体育服饰物流管理的水平,最终提升企业的核心竞争力。     

基于物流金融的河北省农超对接应用研究

物流金融是物流与金融相结合的复合业务概念。结合河北省农超对接中存在的问题,分析了物流金融的内涵、经营模式以及在我国的应用情况,提出利用物流金融促进河北省农超对接发展的对策和建议。     

湖南省雷暴地闪特征初步分析

利用湖南省1980-2010年雷暴日数据、2008-2013年闪电数据,分析了湖南省雷暴和闪电变化特征。结果表明:湖南省属于雷暴多发区,年平均雷暴日数分布呈南高北低的趋势,沿雪峰山有个相对高值区,平均雷暴日数在30d到70d之间。湖南省6年的年平均闪电条数35万余条,雷电高发时段为4-9月,其中7月是全年闪电活动最密集的月份。春季(3-5月)闪电逐时分布呈现双峰型,高峰值出现在02时、17时,夏季(6-8月)闪电多集中在下午15-17时,秋季(9月)高峰期集中在15-16时。湖南省闪电密度分布和闪电强度分布,高值区均在娄底、郴州,全省闪电主要强度分布在20-80kA。     

无锡中小企业税负情况的调查

中小企业在发展中存在着很多问题,重税负一直困扰着中小企业的发展。本文通过问卷调查无锡地区中小企业税负实际情况,在此基础上提出减轻中小企业税负一些合理的建议。     

Recognition of entrepreneur’s social ties and firm innovation in emerging markets: explanation from the industrial institutional environment and survival pressure

Despite the extensive attention to the role of entrepreneurs’ business or political ties, few studies have distinguished the basis of those social ties. The aim of this study is to explore the different roles of the entrepreneurs’ personalized and formal social ties on the firms’ innovation performance. Based on renqing and formal rules, this study extends the social ties’ typology into four categories, namely, transactional business ties, transactional political ties, guanxi business ties, and guanxi political ties. Using data collected from 209 Chinese firms, we further identify the distinctive contributions of the different ties on the entrepreneurial firm’s innovation performance under different institutional environments and entrepreneurs’ survival pressure. This paper will help researchers and managers better understand the function of social ties in innovation in emerging markets, such as China.

     

The Reciprocal Relations of Pressure,Work/Family Interference,and Role Satisfaction: Evidence from a Longitudinal Study in Taiwan

The aim of this longitudinal study was to explore reciprocal relationships between work/family pressure, work/family interference, and work/family satisfaction among Taiwanese employees (N = 310). All study variables were assessed three times. We found that within the work domain, earlier work pressure caused later work‐to‐family conflict (WFC), while earlier WFC reduced later job satisfaction. We also found that earlier WFC caused later work pressure, while earlier job satisfaction reduced later WFC. Similarly, we found that within the family domain, earlier family pressure caused later family‐to‐work conflict (FWC), while earlier FWC reduced later family satisfaction. We also found that earlier FWC caused later family pressure. In addition, family pressure and family satisfaction had reciprocal relationships over time. Together these longitudinal and reciprocal relations strongly support our hypothesized feedback loops linking pressure, work and family conflict, and role satisfaction, within each of the work and family domains. We made specific suggestions on breaking these vicious cycles to effectively manage both the work and family roles.     

Nonparametric dynamic panel data models: Kernel estimation and specification testing

Motivated by the first-differencing method for linear panel data models, we propose a class of iterative local polynomial estimators for nonparametric dynamic panel data models with or without exogenous regressors. The estimators utilize the additive structure of the first-differenced model—the fact that the two additive components have the same functional form, and the unknown function of interest is implicitly defined as a solution of a Fredholm integral equation of the second kind. We establish the uniform consistency and asymptotic normality of the estimators. We also propose a consistent test for the correct specification of linearity in typical dynamic panel data models based on the _L2$L_2$ distance of our nonparametric estimates and the parametric estimates under the linear restriction. We derive the asymptotic distributions of the test statistic under the null hypothesis and a sequence of Pitman local alternatives, and prove its consistency against global alternatives. Simulations suggest that the proposed estimators and tests perform well for finite samples. We apply our new method to study the relationships among economic growth, the initial economic condition and capital accumulation, and find a significant nonlinear relation between economic growth and the initial economic condition.     

基于主成分分析的区域房地产投资环境评价研究——以武汉城市圈为例

投资环境是投资赖以进行的基础和前提,房地产业的健康持续发展离不开投资环境的改善。本文从环境、消费环境、房地产市场环境、基础设施环境以及社会文化环境5个方面选取18项指标,运用主成分分析法,对武汉城市圈房地产投资环境进行综合评价,结合聚类分析,将武汉城市圈9个城市的房地产投资环境分为3类,并进行分类评析。结果表明,武汉城市圈房地产投资环境的地区差异明显,呈现武汉市最高、东部城市较高、西部城市较低的空间分布特征。最后,基于研究结论提出增强武汉城市圈房地产投资环境的若干对策与建议。     

基于交通区位的中等城市物流发展对策——以泸州市为例

根据我国发展阶段,提出中等城市的交通区位特征,并总结此类城市的物流发展现状。在此基础上,以泸州市为典型研究对象,深入分析该城市的交通特征及物流行业竞争力,采用断裂点理论界定其城市影响范围及腹地优势区域,从而探讨基于城市交通区位的物流发展对策并给出具体建议。