Marketing Strategy Analysis of Projector TV Set

论文摘要2002年以来我国彩电市场正在经历巨大的变化。各种技术的新机型不断涌现，背投彩电成为其中的典型代表。本文在分析我国背投行业所处环境的基础上，对国内外主要背投品牌在中国的营销战略作了介绍。通过对国内外主要背投品牌营销战略的分析，本文尝试着为本土背投品牌设计了一套竞争与营销战略。笔者期望通过此文，能够给予面对“入世”及“知识经济”双重挑战的中国本土企业以积极的启示。全文共分为五章:第一章前言。介绍本文的研究背景和研究思路，着重阐述了本文选择背投行业作为研究重点的原因。第二章企业战略与营销战略概述。本章对企业战略与营销战略的基本理论做了介绍。第三章国内背投产业环境分析及背投产品生命周期分析。...Abstract TV set market has been changing rapidly in China since 2002. With more and more new video products coming out, projector TV set (PJ) becomes the typical representative. This paper mainly introduces marketing strategy of some representative brands and draws some instructive conclusions based on the PJ industry analysis. Those conclusions maybe useful to other native brands which have...学位：工商管理硕士院系专业：管理学院工商管理教育中心_工商管理硕士(MBA)学号：20021517

Resistance Against System Injustice:Analysis on Practice of Protecting Rights and Interests of Tongkang Village

随着我国工业化、城市化进程的加速，现行农村土地制度为工业和城市发展获得廉价土地资源提供正式的制度安排，与此同时，农民的土地权益不断被各利益集团所侵蚀。中央政府将“三农”问题列为执政重中之重，不断出台新政加强土地管理和调控，但土地违法现象仍屡禁不止，且其根源在于地方政府“与民争利”。当制度被违反成为一种常态、一种系统而非偶然时，则该制度本身的正义问题一定值得追问。 本文以福建上杭县才溪镇同康村与紫金矿业集团股份有限公司就农地征收赔偿、补偿纠纷所进行的维权过程为主线展开，借助笔者作为同康村委托的律师获取的第一手素材，深入探讨了同康村十月维权历程，此外还对同康村二次维权进行介绍。通过分析同康村维权...With the acceleration of industrialization and urbanization in China, the estate system on countryside land provides such an arrangement that low-cost land resources can be formally used for industrial and urban development. Meanwhile, interest groups encroach on villagers’ rights and interests. The central government emphasizes that the issues concerning agriculture countryside and farmer are the...学位：法律硕士院系专业：法学院法律系_民商法学(含劳动法学、社会保障法学)学号：X20030816

Sentence similarity computing based on relation vector model

句子相似度的计算在自然语言处理的各个领域占有很重要的地位,一些传统的计算方法只考虑句子的词形、句长、词序等表面信息,并没有考虑句子更深层次的语义信息,另一些考虑句子语义的方法在实用性上的表现不太理想。在空间向量模型的基础上提出了一种同时考虑句子结构和语义信息的关系向量模型,这种模型考虑了组成句子的关键词之间的搭配关系和关键词的同义信息,这些信息反应了句子的局部结构成分以及各局部之间的关联关系,因此更能体现句子的结构和语义信息。以关系向量模型为核心,提出了基于关系向量模型的句子相似度计算方法。同时将该算法应用到网络热点新闻自动摘要生成算法中,排除文摘中意思相近的句子从而避免文摘的冗余。实验结果表明,在考虑网络新闻中的句子相似度时,与考虑词序与语义的算法相比,关系向量模型算法不但提高了句子相似度计算的准确率,计算的时间复杂度也得到了降低。Sentence similarity computation is very important in all fields of natural language process.Some of the traditional algorithms only compare sentences based on their surface form such as same words, sentence length, word order and do not consider the sentence deep-level semantic information, some methods considered the sentence semantics get an unsatisfactory performance on the algorithm practicality.Therefore, a relation vector model which taking into account the relationship of sentence structure and semantic information based on space vector model is presented, this model is composed of a mix between the key words of the sentence and the key words synonymous information, which reflects local structural component of the sentence as well as the correlation between the local structure and therefore better reflects the structure and semantics of the sentence.An algorithm of sentence similarity based on relation vector model is put forward.The algorithm is applied to the network news summary generation algorithm in order to avoid redundancy.The experimental results show that, compared with the algorithm which considers the word order and semantic, relation vector model algorithm not only improves the accuracy of sentence similarity calculation, the time complexity of calculation is also reduced

Research of logistics intelligent stowage and loading algorithm design

根据公路运输中物流配载的原则和特点,结合专家知识和策略,提出了物流智能配载的设计思想和实现方法,建立了在不同运单类型、货品属性、出车地点、装车要求等多维度约束条件下的智能配载模型,给出了详细的物流配载术语定义和配载规则。提出了一种基于启发式思想和贪婪思想的混合算法解决货品装箱问题。使用ASP.nET开发环境,实现物流运输智能配载系统,模拟部分物流公司货运数据进行测试,测试结果显示了该智能配载方法的有效性与高效性。According to the principles and features of logistics in highway transportation,combining expert knowledge and strategies,this paper proposes a design idea and implementation method of logistics intelligent stowage.It establishes an intelligent stowage model under multidimensional constraint condition,such as different waybill types,goods attributes,car parking spots,loading requirements.It defines terms on logistics stowage and makes rules of goods loading and uses a hybrid algorithm based on heuristic algorithm and greedy algorithm to solve packing problem.It implements the logistics intelligent stowage system under ASP.NET programming environment and imitates some data of logistics companies to test the system.The test result shows this intelligent stowage method is reasonable and feasible.国家自然科学基金(No.50604012

Reversed Flow Injection Analysis of Nitrate in Drinking Water with UV-induced Reduction to Nitrite and Spectrophotometric Detection

1引言硝酸盐广泛存在于各种环境水体中。当饮用水中硝酸盐浓度过高时,可能对人体健康造成危害;地表水中硝酸盐大量积累,则可能引起藻类过度繁殖,溶解氧耗竭,水质恶化。目前,检测硝酸盐的最常用方法是将硝酸盐还原为亚硝酸盐,再经重氮偶联反应后由分光光度法进行测定[1]。此类方法已较好地与流动分析技术相结合,广泛应用于测定环境样An environmental friendly method was developed based on reversed flow injection(r-FIA) with UV-induced reduction of nitrate to nitrite and spectrophotometric detection.Sample or standard solutions were mixed with a phosphate buffer solution containing diethylenetriaminepentaacetate(DTPA),and then passed through a UV reduction reactor equipped with an 8 W low pressure mercury lamp,where the nitrate was reduced to nitrite.The formed nitrite was detected with spectrophotometric method through Griess reaction.Less than 20 μmol/L of nitrite showed no effect on the nitrate analysis.Reduction efficiency over 80% was obtained.The detection limit of the proposed method was 0.053 μmol/L and linear range was 0.2-40 μmol/L.A sample of 20 μmol/L nitrate was continually measured for 48 times,and a RSD of 2.22% was obtained.The recoveries of drinking waters were between 90.9%-100.6%.国家“863”项目(No.2007AA061501);“长江学者和创新团队发展”计划(No.40821063)资助项

低碳钢的大应变低周疲劳

对三种低碳钢的不同缺口的轴对称圆柱形试样在大应变循环下的低周疲劳行为进行了研究。以考察失效周次在１００次以内的疲劳断裂行为。结果表明随着被控循环应变幅度的增大，低碳钢的低周疲劳寿命降低，断裂模式则由疲劳解理逐渐向延性韧窝过渡。缺口处的三向应力程度以及起始循环加载的静态损伤都对最终的疲劳失效有重要的影响。建议采用一种广义的循环应变参量上来概括影响这种大应变低周疲劳的诸因素，从而可以采用修正的Ｃｏｆｆｉｎ－Ｍａｎｓｏｎ关系式描述其疲劳行为

丙烷选择氧化用VPO/SiO_2催化剂的研究

对比研究了VPO和VPO/SiO2 催化剂的结构、表面元素氧化态、还原性及其对丙烷选择氧化反应的催化性能 .与VPO催化剂相比 ,VPO/SiO2 催化剂具有较大的比表面积 ;VPO主要以 (VO) 2 P2 O7的形式高度分散于SiO2 表面 ;VPO/SiO2 催化剂的还原温度较低 ;VPO/SiO2 催化剂与丙烷的相互作用较强 ;在反应条件下 ,VPO/SiO2 催化剂的活性较高 ,但产物丙烯的选择性较低 ,并有丙烯醛等C3含氧化合物生成 .这可能是由于VPO/SiO2 催化剂表面的V与Si发生了相互作用之故 .随着VPO担载量的增加 ,VPO/SiO2 催化剂的比表面积减小 ;催化剂的还原温度略有升高 ,可还原的晶格氧量增加 ;催化剂表面与丙烷的相互作用增强 ;丙烷转化率升高而丙烯选择性降低 ,丙烯醛选择性在 5 %VPO/SiO2 催化剂上最高 .这可能是由于随着VPO担载量的增加 ,催化剂表面晶格氧的密度增大所

山东电网新能源消纳关键措施分析及综合评估

在“双碳”目标下，山东省将进一步加快能源转型步伐，建设新型电力系统。然而，在山东省新能源快速发展的同时，新能源消纳问题日益凸显。以山东电网为分析对象，开展新能源消纳关键措施研究。分析了山东新能源消纳现状，总结了新能源消纳问题的机理，在此基础上归纳影响新能源消纳的关键因素。针对这些关键因素，系统性地提出了促进新能源消纳的各项措施。以山东电网2025年规划数据为基础场景，利用时序生产模拟方法对这些措施进行量化分析，为合理制定新能源消纳措施提供决策支撑

丙烷选择氧化用VPO/SiO_2催化剂的研究

对比研究了VPO和VPO/SiO2 催化剂的结构、表面元素氧化态、还原性及其对丙烷选择氧化反应的催化性能 .与VPO催化剂相比 ,VPO/SiO2 催化剂具有较大的比表面积 ;VPO主要以 (VO) 2 P2 O7的形式高度分散于SiO2 表面 ;VPO/SiO2 催化剂的还原温度较低 ;VPO/SiO2 催化剂与丙烷的相互作用较强 ;在反应条件下 ,VPO/SiO2 催化剂的活性较高 ,但产物丙烯的选择性较低 ,并有丙烯醛等C3含氧化合物生成 .这可能是由于VPO/SiO2 催化剂表面的V与Si发生了相互作用之故 .随着VPO担载量的增加 ,VPO/SiO2 催化剂的比表面积减小 ;催化剂的还原温度略有升高 ,可还原的晶格氧量增加 ;催化剂表面与丙烷的相互作用增强 ;丙烷转化率升高而丙烯选择性降低 ,丙烯醛选择性在 5 %VPO/SiO2 催化剂上最高 .这可能是由于随着VPO担载量的增加 ,催化剂表面晶格氧的密度增大所

An Efficient(k,p) Notational System Transform Algorithm

多进制编码和混合进制编码广泛应用于信息隐藏领域,影响其编码性能的一个关键因素是进制转换效率.针对任意k进制序列到P进制序列的相互转换,提出一种高效的进制转换算法,并根据信息论证明了其最优性.利用新算法改进了kT-lEX文本隐写系统、网页等价标记隐写术、图着色编码和APPM编码等多种基于混合进制编码和分组多进制编码的隐写术,有效提高了原方法的隐写性能.理论分析和实验结果均表明了该算法的有效性.Muti-ary codes and mix-ary codes are widely used in information hiding, while the transfer efficiency between notational systems is an important factor of coding efficiency.An effective notational system transfer algorithm based on double-coding method is proposed for transforming arbitrary k-ary sequences to p-ary sequences.It is proved that the proposed notational system transform algorithm is optimal.The method is applied to improve embedding efficiency of several kinds of steganographic algorithms based on mix-ary codes or grouped multi-ary codes, including KT-Lex steganographic system, webpage steganography based on equal tag, grid coloring codes and APPM codes.Both theory analysis and experimental results show that the proposed method is effective.国家自然科学基金(No.60803155;No.60970141;No.60902102;No.61274133); 中国科学院战略性先导专项课题基金(No.XDA06030601); 国家重大科技专项基金(No.2010ZX03004-003); 郑州市科技创新团队项目基金(No.10CXTD150)资