论十七年文学的忧患意识——兼与夏志清教授商榷

夏志清教授曾认为“感时忧国”精神是中国现代文学的主要特征,其他各历史阶段的文学是不存在该精神的。但是,如果仔细辨析“感时忧国”精神的源流,深入分析十七年文学相关文本,我们会发现该精神不过是积淀在中国知识分子思想深层的忧患意识在新的历史条件下的置换与发展,它在十七年文学中并没有全然消失而是得到了一定程度的继承。对此,夏志清的相关文章也是充满悖论的。     

基于SWOT分析的喇叭河森林公园旅游产品策划

基于SWOT分析,喇叭河森林公园既有区位、资源等方面的旅游开发优势,又有生态环境脆弱、资金投入不足、市场开拓不足等方面劣势;既有发展机遇,又面临多方面的挑战.因此,喇叭河森林公园旅游产品策划就应基于锥形的旅游产品结构体系,以"市场导向,资源依托"为策划原则,引进品牌战略,构建多样的项目集群,并实行多元化的经营模式,以吸引更多的游客.     

DYNAMIC INTERACTION OF PRICE AND DESIGN QUALITY FOR PRODUCTS WITH CONVEX PRODUCTION COSTS

Price and design quality define value for customers and are often used by firms to position products in the marketplace. Setting price and quality level on a new product for the first time and making appropriate changes over time to these variables to reflect changing conditions in the market requires careful coordination of design, manufacturing, and marketing variables. We present a control theoretic model to study the complex interaction among price, quality, and cost during the life cycle of a product. Our model considers the major design-manufacturing-marketing tradeoffs and helps determine optimal pricing, design quality, and production strategies in a dynamic environment with convex production costs.     

中美饮食文化对奶业发展的影响度比较

饮食观念的转变,为奶业大发展提供了广阔的市场空间。特别是美国的饮食文化对促进美国奶业的发展起到了至关重要的作用。通过引导饮食文化的转变,促进中国奶制品的消费,进而找出影响中国奶业发展的又一重要因素,已成为加快我国奶业发展的重要课题。     

普通高校公共体育教学的改革实验与结果分析

从体育课程设置、教学内容、教学组织形式、学生体育考核等方面对“三阶段式”体育教学改革进行分析,可以发现,“三阶段式”体育教学具有实效性,符合现阶段学生实际。由此也发现,体育教学方法、手段只有尽可能体现快乐健康教育的特点,才能取得好的教学效果。     

传承拓展与深化--张爱玲与王安忆都市小说创作比较一隅

张爱玲与王安忆是中国现当代文学史上两位重要的女作家,其都市小说创作有一定的相似性。从她们对都市女性生存境遇的刻画、对市民日常生活的描写及共有的怀旧意识三方面比较她们的异同,指出王安忆的都市小说创作在一定程度上传承了张爱玲的笔法,并拓展深化了都市小说的内涵,具有深远的意义。     

POWER APPROXIMATIONS FOR A TWO-ECHELON INVENTORY SYSTEM USING SERVICE LEVELS

We consider a two-echelon inventory system with one warehouse and several stores. The warehouse as well as the stores are controlled by periodic review (s, S) inventory policies. We study the interrelationship between the safety stocks at the warehouse and the stores. Stockouts at the warehouse will result in supply delays to the stores and cause the lead time to be stochastic. The stores may react by increasing their safety stock. However, there is a trade-off between the safety stock at the warehouse and the safety stock at the stores. We use a service level at the warehouse to quantify the effect of warehouse stockouts on the lead time to the stores. The service level at the warehouse is considered a decision variable to find the best compromise between the various safety stocks by minimizing the overall costs. Using power approximations for the (s, S) policies, we provide an iterative procedure for adjusting the lead time distribution to the stores; this can result in substantial savings, but it doesn't guarantee the overall optimality. Numerical studies are provided to test the accuracy of approximations. The effects of the different system parameters on the inventory policy give general guidelines for use of the policies.     

解读"整合"与"民族整合"

"整合"和"民族整合"两词在当前的学术论著中出现频繁,学者们对"民族整合"的理解也各不相同.实现学术话语的趋同性认识和使用,有利于消除歧异性理解,形成认知上的共识.本文在对"民族整合"的不同表述进行梳理的基础上,提出了自己的主张,并认为"民族整合"是不同于民族融合和民族同化的功能和过程.     

明末清初民间宗教的民族观析论--以《冬明历》为例

<冬明历>是明清时代流传较广、影响较大的民间宗教经书之一,其史料价值弥足珍贵.很长一个时期以来,由于<冬明历>的完整版本一直未被发现,因此对于该书的具体内容和性质,学界多有不识,偶有论及者,或失之偏颇,或流入想像和臆测.本文主要以新近发现的抄本<冬明历>为第一手材料,考察了<冬明历>一书的基本结构及其相关问题,并在明末清初民族冲突的大背景下,重点探讨了民间宗教"夷夏之辨"、反清复明、帝王观的流变与满汉混同等相关问题,为更加深入、全面地认识明末清初的民族与宗教问题提供一种新的研究视角.     

A Decision Model for the Robot Selection Problem Using Robust Regression*

Industrial robots are increasingly used by many manufacturing firms. The number of robot manufacturers has also increased with many of these firms now offering a wide range of models. A potential user is thus faced with many options in both performance and cost. This paper proposes a decision model for the robot selection problem. The proposed model uses robust regression to identify, based on manufacturers' specifications, the robots that are the better performers for a given cost. Robust regression is used because it identifies and is resistant to the effects of outlying observations, key components in the proposed model. The robots selected by the model become candidates for testing to verify manufacturers' specifications. The model is tested on a real data set and an example is presented.