伯川德双头动态定位博弈分析

在文 [1]的基础上 ,定义了寡头的成本优势 ,讨论了两个寡头在线形市场中位置不确定下的动态定位搏弈 ,得出了寡头在具有成本优势 (劣势 )下各自的均衡位置Xi 和均衡利润Πi(>0 )i=1,2 ,从而更加合理解释了“伯川德”悖论。     

110kV充油电缆油样介质损耗超标的处理

由于 110 k V充油电缆的油样达不到“电力设备运行预防性试验”标准的要求 ,该电缆不能投入系统的运行。本文介绍了如何采用合格的充油电缆的电缆油来置换原有的劣化电缆油 ,使油样的耐电压、介质损耗等技术指标得到了改善 ,并投入了运行 ,为本公司有效地降低处理成本约 16 .5万元     

企业竞争环境分析与竞争战略的制定

以分析竞争对手和企业竞争力为依据 ,发现优势与劣势 ,机会与威胁 ,提出立足于优势资源 ,定位于顾客价值 ,注重协同竞争来创建企业竞争战略优势的构想。设计以明确的企业使命 ,正确选择竞争领域为重要基础的战略优势创建方案     

Research on Marketing Channel of Mobile Manufacturer Based on Analytic Hierarchy Process

Research on ＂marketing channel＂ of mobile attracts much attention in these years, but there＇re only few articles referring to how to optimize the disposition of channel resources for mobile manufacturers. Based on a typically multiplex marketing channel system of mobile manufacturer, the analytic hierarchy process （~HP） structure model is established. Through the judgment matrix, simple and total hierarchy arrangement, consistent test, this paper gets the weight of each kind of marketing channel of mobile manufacturer, it provides the practical reference value for mobile manufacturers to distribute resources of marketing channels.     

网络副刊：优势与局限

论述了网络副刊在互联网兴起后之现状。而随着网络的兴起,网络副刊类的版面进入各个网站,每个文学爱好者都可以在此展示才华或信手涂鸦,这就形成了网络副刊的强烈的"个人化写作"现象,"鱼龙混珠"的热闹景象。但也有人的网上作品亦从网上风行到网下,得以出版及上报纸副刊版面,这说明了网络副刊虽来自"混沌初开"的疆域,但毕竟被视为副刊的一个品种。它所具有的生猛无羁,靠的是网络写作自由氛围和传播的优势,它的良莠杂芜,也是因写作和传播的自由所致。     

Chemical Defenses of the Sacoglossan Mollusk Elysia rufescens and Its Host Alga Bryopsis sp.

Sacoglossans are a group of opisthobranch mollusks that have been the source of numerous secondary metabolites; however, there are few examples where a defensive ecological role for these compounds has been demonstrated experimentally. We investigated the deterrent properties of the sacoglossan Elysia rufescens and its food alga Bryopsis sp. against natural fish predators. Bryopsis sp. produces kahalalide F, a major depsipeptide that is accumulated by the sacoglossan and that shows in vitro cytotoxicity against several cancer cell lines. Our data show that both Bryopsis sp. and Elysia rufescens are chemically protected against fish predators, as indicated by the deterrent properties of their extracts at naturally occurring concentrations. Following bioassay-guided fractionation, we observed that the antipredatory compounds of Bryopsis sp. were present in the butanol and chloroform fractions, both containing the depsipeptide kahalalide F. Antipredatory compounds of Elysia rufescens were exclusively present in the dichloromethane fraction. Further bioassay-guided fractionation led to the isolation of kahalalide F as the only compound responsible for the deterrent properties of the sacoglossan. Our data show that kahalalide F protects both Bryopsis sp. and Elysia rufescens from fish predation. This is the first report of a diet-derived depsipeptide used as a chemical defense in a sacoglossan.     

重庆市污水源热泵应用前景分析

文章介绍了城市污水的主要热特性以及污水源热泵的优势，结合重庆市的污水排放情况，分析了在重庆市运用污水源热泵的方案，并简要分析了在重庆市采用污水源热泵所产生的效益，最后得出污水源热泵在重庆市具有良好的应用前景的结论。     

企业知识产权竞争优势研究

分析了知识产权对企业竞争优势的作用,探讨了企业知识产权竞争优势的形成机制,指出核心技术和品牌所带来的技术和市场地位是企业知识产权竞争优势的根源.     

主体功能区建设与西部特色优势产业发展

分析主体功能区建设的内涵及其对西部地区发展的影响,认为主体功能区建设既有有利于西部地区发展的一面,同时也增强了其发展的约束。对西部地区而言,要立足比较优势,大力发展特色优势产业,按照不同的主体功能定位,选择差异化的发展道路,加快体制机制创新,实现西部地区工业化和可持续发展。     

大学英语分级教学利弊探讨——独立学院英语教学改革实践

针对独立学院的办学特点，学生入学时的英语基础，大学英语的教学现状，探讨了大学英语分级教学模式和教学改革实践，并通过实践总结了分级教学的利弊，对其不利因素提出了相应的解决方法和若干建议．