The Tactics Discussion of Bayer Polycarbonate Business Relationship Marketing

聚碳酸酯市场经过五十多年的发展，尤其是近十年来跳跃式的发展，目前聚碳酸酯市场的规模和竞争环境都发生了巨大的变化。原有的竞争格局被打破，新的格局有待形成。聚碳酸酯的营销环境发生了重大的变化，商品化的趋势越来越明显。聚碳酸酯市场正经历着以交易为目的的市场营销向以关系为导向的关系营销的转变。关系营销，是把营销活动看成是一个企业与客户、供应商、分销商、竞争者、政府机构及其他公众发生互动作用的过程，其核心是建立和发展与这些公众的良好关系。 本文通过对拜耳聚碳酸酯关系营销的策略进行分析和探讨，通过分析拜耳聚碳酸酯关系营销的成功与不足，为本企业的关系营销提供意见，同时为其它企业进行关系营销提供思路和借鉴。...After over fifty years development, especially in the near ten years, polycarbonate market size and competition environment are tremendously changed. Polycarbonate becomes more and more commodity, the competition is harder and harder. The market is changing from trading driven to relationship driven. Relationship marketing, is marketing as a business and customers, suppliers, distributors, compe...学位：工商管理硕士院系专业：管理学院工商管理教育中心（MBA中心）_工商管理硕士(MBA)学号：X20031536

家居物联实时终端设计与实现

物联网已成为当今各国重点科技发展战略。家居物联网因与人类生活密切相关,具有广阔的市场空间,在业界引起了广泛关注和积极研究。立足于实际家居物联网需求,特别考虑到实时性能和成本因素,设计了一套针对家居物联网的终端系统。该系统采用eCos(嵌入式可配置操作系统)作为嵌入式操作系统,开展了系统移植和驱动移植工作,利用eCos的实时功能设计来满足终端的实时性需求,以其开源性节约成本,为家居物联终端普及提供条件。此外结合家居物联网结构特点,通过在eCos系统上移植OLSR路由协议来实现家居网络的路由,增强网络的鲁棒性,为家居物联网的实时传输应用提供了良好支撑。总体看来,该家居物联终端具有优异的系统实时性和较高的经济适用性

Comparison of efficacy between mPCNL with holmium laser and EMS standard tract PCNL in the treatment of complex renal calculi under ultrasound guidance

目的比较b超引导下微通道经皮肾镜钬激光碎石术(MPCnl)与标准通道经皮肾镜气压弹道联合超声碎石术(标准通道PCnl)治疗复杂性肾结石的临床疗效。方法对78例复杂性肾结石患者分别行MPCnl(35例)和标准通道PCnl(43例)治疗,术后对2组患者的手术时间、一期结石清除率和手术并发症等指标进行比较分析。结果 2组患者分别成功建立16f和24f经皮肾通道并一期行碎石术。MPCnl组手术时间明显长于标准通道PCnl组;一期结石清除率MPCnl组低于标准通道PCnl组,差异均具有统计学意义(P均38.5℃1例。2组并发症差异无统计学意义(P>0.05)。结论 b超引导下MPCnl与标准通道PCnl治疗复杂性肾结石安全有效、并发症发生率低,标准通道PCnl联合应用EMS第4代气压弹道联合超声碎石清石系统碎石清石效率高,较MPCnl钬激光碎石明显有优势,值得推广。Objective To compare the outcomes of the surgical treatment of complex renal calculi with minimally invasive percutaneous nephrolithotomy(mPCNL) and EMS percutaneous nephrolithotomy(standard tract PCNL) under ultrasound guidance.Methods A total of 78 patients with complex renal calculi were allocated to either mPCNL treatment group(mPCNL group,n=35) or EMS(swiss,the fourth generation) standard tract PCNL treatment group(standard tract PCNL group,n=43).The operative time,primary stone-free rate and operative complications in the two groups were compared.Results 16F and 24F percutaneous renal accesses were successfully established in mPCNL group and standard tract PCNL group respectively,and then the first lithotrity-lithiasis cleaning procedure was performed.The operation time in mPCNL group was longer than that in the standard tract PCNL group 〔(102±31) min vs(67±22) min,P38.5 ℃ occurred in one case of mPCNL group.There was no significant difference in operative complications in two groups(P>0.05).Conclusions Both the treatments of complex renal calculi with mPCNL and EMS(the fourth generation) standard tract PCNL under ultrasound guidance are similarly safe,but the standard tract PCNL has the superiority of higher primary stone-free rate and shorter operation time over the holmium Laser mPCNL.Therefore the standard tract PCNL merits propagation for treating complex renal calculi

Research of Cross-layer Design Scheme in Ad hoc Networks

跨层设计是提高无线网络综合性能的一种解决方案。本文分析了现有的多种跨层机制,提出了在一个协议体系上综合多种跨层机制的方案。综合使用多种跨层技术必须考虑到不同跨层设计间的兼容性,即共存问题。同时分析了通信网络中的一些新思维,并将这些新的思维引入到跨层设计当中,合理利用缺陷,解决其中存在的问题。Layered architecture is an efficient and easy solution in protocol design in wire networks.However,this solution cannot very suit to wireless network.In this paper,we adjust the parameters that span across the layers for better improving the performance of wireless network.The parameters must be selected carefully,since inappropriate interaction may degrade performance badly.As the technology evolved in wireless communication,we are allowed to look at another eye to the wireless resources.厦大科技创新项目(NoK70014);; 省青年科技人才创新项目(NoK33001

一种高硫含量碳硫锂离子电池材料的制备方法及其应用

本发明公开一种高硫含量碳硫锂离子电池材料的制备方法及其应用。该方法是将单质硫加入到反应容器内，注入六氯丁二烯于100～300℃、0～15 MPa压力条件下密闭反应，后处理后离心、沉淀水洗，干燥得初品；在惰性气体保护下，管式炉热处理30 min～4h即可。高硫含量新型碳硫材料在锂离子电池中的应用。本发明方法极其简单,原料来源丰富,制备出的高硫含量新型碳硫分子材料,碳原子和硫原子以化学键的形式结合,其中硫元素的含量占该材料的质量百分比可达10﹪～80﹪。碳硫原子通过化学键相互结合,硫原子在材料中得到均匀分散,使得在充放电过程中能与锂离子充分接触并反应,极大地提高了锂离子电池的比容量和循环性能

番茄表面沙門氏菌及腸桿菌之檢測

Salmonella species have been regarded as important foodborne pathgens mainly come from the contaminated animal-sourced egg, poultry and meat food products. More recently, salmonellosis has been linked to tomatoes, seed sprouts, cantaloupe, apple juice, an沙門氏菌一向被視為是主要存在於動物來源之肉類及蛋類食品中的食品病原菌，但近年來的食品中毒案例顯示，番茄、香瓜、果及柳橙等蔬菜及水果中也可能存在有沙門氏菌。本研究之目的即在於檢測市售番茄樣品中沙門氏菌可能之污染及分佈情形。於民國93年四月至六月期間由臺中市八個行政區域共採集32個聖女小番茄樣品，分別使用UP broth (Universal pre-enrichment broth)與Lactose broth沖洗表面所得到的洗液，先進行增殖培養24小時後，利用選擇性培養基（BS、HE及XLD agar）