The Data Sorting for Data Mining and Its Application

本文从统计学的角度对事务性数据库进行了描述,提出了加权构造综合属性函数方法,对事务项进行了排序分析,并用该方法对某些区中国移动手机用户的消费情况进行了综合评价,得到了许多有意义的结果。In this article, we describe the transactional databasas form the angle of statistics.We next propose the weighted construction method of the generalized attribute function for the transactional databases and analyse the data sorting of the transaction. Then we use the method to give a overall assessment on the consumption of China Mobile customers in some district of China,and gain a lot of meaningful results.国家社会科学基金资助(03BTJ014);; 国家统计局统计科学研究重点项目基金资助(LX2002-2

Development and Application of Micro-Electro-Mechanical System

【中文文摘】微机电系统是在微电子技术基础上产生和发展起来的多学科交叉的前沿科学研究领域 ,是面向 2 1世纪的高新科技 .介绍了微机电系统产生的背景影响、组成特征和基础研究内容 ,综述了微机电系统技术基础所涉及的材料、微机械设计和模、微细加工技术以及微封装与测试等领域 ,并对微机电系统的应用、典型的微器件、国内外的发展现状及前景进行全面分析 .在此基础上 ,论述了MEMS技术目前存在的问题和未来发展的趋势 【英文文摘】Micro-Electro-Mechanical System(MEMS) developes on the basis of microelectronics.It is a scientific researches frontier of multi-disciplines and a high technology in the 21st century.This paper presents the background,characteristics and basic research.The principal techniques of MEMS such as material,design and simulation,micromachining,packaging and testing are reviewed,Typic microapparatus,application prospect and the state-of-art of MEMS are also discussed in this paper.Furthermore,some points of view of developing on MEMS in the future are put forward

Introduction and Maintenance of Camphor Tree (Cinnamomum glanduliferum) in Xiamen

本文以邓小平在厦门市园林植物园的手植树为例,对云南樟的生物学特性、资源分布及在厦门地区的引种情况进行分析,认为:厦门植物园内云南樟生长异常的重要原因是根系活动环境恶化;厦门南亚热带海岛气候条件是导致其速生、提前衰老的主要原因之一,并提出相应的养护管理措施。Taking the camphor tree(Cinnamomum glanduliferum) planted by Mr.Deng Xiao-ping in Xiamen Botanical Garden as example,the biological characteristics,original distribution and introduction of Cinnamomum glanduliferum in Xiamen were investigated.The results showed that the worsening soil environment had severely limited the activity of tree roots and had a adverse effect on the growth of C.glanduliferum.The south-subtropical island climate is one of the main factors resulting in the fast growing and earlier senescence of camphor tree.Some suggestions for maintenance are also put forward

The Application of PLC in Pneumatic Control Electrode Board Cutting Machine

【中文文摘】本文详细阐述了气动控制系统、光电检测、可编程控制器在气动电极板剪切机中的应用。 【英文文摘】The pneumatic control system,optoelectronic detection system,the application of PLC in pneumatic control electrode board cutting machine was introduced in detail

The overview of rapid prototyping technique

【中文文摘】在研究快速原型技术发展历史和现状的基础上,介绍了快速原型制造的基本原理,重点介绍几种发展较成熟的RP技术的基本原理,分析RP技术的特点,并探讨其应用价值和发展前景,提出了目前发展快速成型的基本观点和未来发展趋势。 【英文文摘】Based on the history and development of rapid prototyping technique,the principles of Rapid Protyping(RP),especially several developed techniques,are introduced.The characteristics of RP techniques are analyzed and the opinions about future development tendency and prospect are put forward.福建省自然基金项目(k32014);; 国家留学回国人员基金资助项目(k3003

耐热高活性改进铜基甲醇合成催化剂

耐热高活性改进铜基甲醇合成催化剂Ｈｅａｔ－ｒｅｓｉｓｔａｎｔａｎｄＨｉｇｈｌｙＡｃｔｉｖｅＭｏｄｉｆｉｅｄＣｏｐｐｅｒ－ｂａｓｅｄＣａｔａｌｙｓｔｓｆｏｒＭｅｔｈａｎｏｌＳｙｎｔｈｅｓｉｓ杨意泉，张鸿斌，郭忠平，陈汉忠（厦门大学化学化工学院）周文成，..

抗人DR5单克隆抗体的制备、鉴定及活性分析

目的制备抗人DR5单克隆抗体(mAb),鉴定其特性,并进行生物学活性分析。方法以纯化的可溶性DR5(sDR5)免疫Balb/c小鼠,杂交瘤技术制备抗人DR5mAb;运用ELISA、SDS-PAGE电泳方法测定抗DR5mAb与sDR5结合的特性;Ig亚类ELISA试剂盒鉴定抗DR5mAb亚类;间接ELISA法检测腹水mAb效价;流式细胞仪检测肿瘤细胞表面DR5的表达水平;流式细胞仪检测抗DR5单克隆抗体(mAb)诱导肿瘤细胞凋亡的功能。结果获得1株可分泌抗DR5mAb的杂交瘤细胞系R150。SDS-PAGE电泳检测证实,获得的R150可特异性地识别DR5;R150的Ig亚类为IgGI(λ型);腹水效价为1×106;通过流式细胞仪可敏感地检测到肿瘤细胞表面DR5的表达水平及R150诱导肿瘤细胞凋亡情况。结论获得1株可分泌抗DR5mAb的细胞系R150,抗体具有效价高、特异性强等特点并能有效诱导肿瘤细胞凋亡,具有较好的应用价值

穿爆弹撞靶效应数值分析

利用流体弹塑性模型和欧拉算法对穿爆弹撞击有限尺度模拟靶的力学效应进行了数值分析。给出了撞靶过程中各物理量的变化，分析了靶板尺度、撞靶速度对撞靶效应的影响