2,071 research outputs found

    Design and Implementation of the Information System for Water and Electricity Fees Management in A Residential Property Management Company

    Get PDF
    本文主要研究实现一套小区物业水电费管理信息系统,以实现小区水电用户档案管理、抄表、核算、收费、账户对账、报表分析、数据查询等业务应用功能。本水电费管理信息系统能够有效提高物业管理水电的效率,使物业可以随时随地的检查和监督小区水电管理问题,该系统还可以把问题及时、准确的记录,给物业提供参考数据,使物业管理公司能根据相关情况及时制定应对措施。 本系统采用Oracle10g数据库管理软件,实现水电费管理信息系统的数据存储和管理;应用PowerBuilder8.0客户端开发软件,主要用于实现水电费管理信息系统的用户端应用软件;采用PLSQLDeveloper数据库集成开发环境软件,主要用于实现数据库...This paper mainly focus on designing a management information system on water and electricity fees inresidential blocks so as to achieve profile management, meter reading, reconciliation, accounting, charges, accounts, reports, analysis, and data query. The system will effectively improve the efficiency of management, allowing residential properties to regulate water and electric problems at anyti...学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X201323190

    A Study of North Sumatra Chinese Society in the Early Period of Post WWII (1945——1958)

    Get PDF
    本论文以苏门答腊北部(简称苏北)发行的中文报纸、民国时期的苏北地方档案以及本人对印尼著名归侨的采访调查获得的资料为主要史料来源,通过对苏北华侨华人人口数量、分布、职业、侨团侨校、政治分化的考察,揭示了二战后初期苏北华侨华人社会发生的变化及其特征。 因地理条件的适宜和世界市场的需求,19世纪60年代末种植园经济在苏北蓬勃兴起,苏北成为荷属东印度经济作物的出口贸易基地,包括华侨、爪哇人和其他外来人涌入苏北,苏北形成了以新客为主的华侨社会。华侨在苏北的经济生活中占据重要地位,但仍是以马来语系民族为主的多元社会中的一个人口比例较小的部分。 二战后,在城市化和冷战背景下,苏北华侨华人社会出现明显变化...The paper examines the changes and features of the overseas Chinese community in the north Sumatra in Indonesia in the periods of 1940s and 1950s by focusing on social structure, population, trade, industry, education as well as political identity of Chinese community. Due to the favorable conditions and soaring world market, the plantation economy have been flourishing in the north Sumatra sinc...学位:历史学博士院系专业:南洋研究院_世界史学号:2552013015401

    Design and Implementation of production scheduling System of Concrete Mixer Truck

    Get PDF
    企业信息化是一个不断深化发展、不断提高的过程。开发和充分利用信息资源,不断提高生产效率,改善经营管理水平,就是为了降低企业生产成本,提高企业内部的管理水平。而车辆管理作为混凝土企业日常管理的一个重要组成部分,车辆安排的好坏将直接影响着企业的生产效率及设备的利用率。由于过去采用人工调度带来的出错率高、生产效率低等问题,已无法满足当前生产任务的需要。 因此,本文设计并实现了一个搅拌车生产排单系统。本系统采用Delphi和SQLServer的技术方案。系统主要实现了车辆、驾驶员、生产任务、车辆刷卡信息管理、生产排单和LED屏信息管理六项功能。 本系统的实现,解决了商品混凝土生产企业在多用户、多工...With the development and improvement of enterprise informatization , as fully as possible use of information resources, and improve the production, work efficiency and enterprise management, its purpose is to reduce production costs and enhance internal management. As an important part of the daily management of the concrete company, the arrangement of the vehicle will directly affect the producti...学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X201223114

    Preparation and performance of fine-diameter SiC-based ceramic fiber

    Get PDF
    连续细直径的碳化硅(SiC)纤维由于其高强度、耐高温、抗氧化等性能被用来做陶瓷基复合材料增强纤维。为了提高先驱体转化法制备的碳化硅纤维的性能,本文采用硼改性的聚钛碳硅烷,经过熔融纺丝,氧化交联,热解与烧结,制备含钛硼的碳化硅纤维。系统地研究了硼改性的聚钛碳硅烷高分子先驱体的结构及其纺丝性能,高分子纤维的氧化交联以及碳化硅纤维力学性能与吸波性能。 首先,采用液态聚硅烷、钛酸丁酯、硼酸丁酯反应合成含钛硼的高分子,然后将其与聚碳硅烷(PCS)混合制备了不同钛硼含量的硼改性聚钛碳硅烷。以纯聚碳硅烷作对比进行熔融纺丝,并探索碳化硅纤维的制备工艺。结果表明,所制备的硼改性聚钛碳硅烷与聚钛碳硅烷具有相似的...Fine-diameter silicon carbide (SiC) fiber is promising reinforcing fiber for ceramic matrix composites at high temperature applications, because of its high tensile strength and high temperature oxidation resistance. The titanium and boron-containing SiC fiber was prepared from the boron-modified polytitanocarbosilane to improve the performance of SiC fiber prepared by polymer precursor method. Th...学位:工学硕士院系专业:材料学院_工程硕士(材料工程)学号:2072014115012

    On Ball-covering Theory Method and Their Applications to the Study of Some Geometric and Topological Properties of Banach Spaces

    Get PDF
    称一个Banach空间XX具有球覆盖B\mathcal{B},是指存在一族远离原点的开球(或者闭球),它们的并包含了单位球面SXS_X.称XX具有球覆盖性质(BCP)若其具有可数多的球覆盖. 本文利用球覆盖这个工具,继续对Banach空间的几何和拓扑性质进行研究.在研究过程中, 我们借助有限维空间的球覆盖的性质去刻画整个空间几何性质,如(一致)光滑性,万有表示性及B-凸性.我们也讨论了球覆盖性质及具有球拓扑的相应的空间的GδG_\delta性质. 全篇文章组织如下: 第一章,我们给出Banach空间球族行为的历史回顾.重点介绍了球拓扑及球覆盖的发展历史,为后面的内容提供了理论背景...By a ball-coveringB\mathcal {B} of a Banach space XX, we mean that it is a collection of open(or closed) balls off the origin whose union contains the unit sphere SXS_X. We say that XX admits the ball-covering property (BCP) if it admits a ball-covering of countably many balls. In this paper, we utilize properties of ball-coverings in Banach spaces to study some geometric and topologic...学位:理学博士院系专业:数学科学学院数学与应用数学系_基础数学学号:1902007015385

    Design and Implementation of a Charge System of Hospital Hearth Card

    Get PDF
    摘要 随着社会经济的进一步发展,曲靖市实施了“市民健康卡”工程,为每个居民建立一份健康档案、提供一个识别号、发放一张“健康卡”,病人凭卡到医疗机构就诊和结算,提高医疗卫生服务的便捷性、连续性和系统性。但由于健康卡与银行网络没有实现信息共享,不能实现银行结算,给健康卡的使用带来不便。 目前,银行业务迫切需要改变其客户结构,增强核心竞争力。由于历史原因,一直以来与优质的卫生类客户合作较少,市场占比较低,极大地制约了银行优质业务的发展。因此,在此背景下,建设银行与曲靖市第二人民医院合作实现了健康卡的银行收费结算。 随着网络技术的发展,使用网络互联技术实现数据实时共享与交换,解决健康卡收费系统的...Abstract With the further development of social economy, Qujing City implemented the "public health card" project, in order to establish a health file for each resident to provide an identification number, issued a "health card" to medical institutions for treatment of patients spend with your Card and settlement, increase the convenience of medical and health services, continuous and systematic....学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X200823012

    APPLICATION OF PENETRATIVE PAVEMENT AND ITS PROSPECTS

    Get PDF
    【中文文摘】透水性硬化路面及铺地 ,是由一系列与外部空气相连通的多孔结构形成骨架 ,同时又能满足路用及铺地强度和耐久性要求的地面 ,其面层表面呈多孔构造形式 ,具有良好的降噪、降温、增湿及减尘作用 ,并有利于改善城市的热环境 ,我国对多孔透水性铺装的研究尚处于起步阶段 ,但由于其具有的明显优点 ,因此应用前景广阔 【英文文摘】Penetrative pavement is formed with a series of porous structure breathable to the outside air which meets the requirement of strength and durability. The pavement has the function of minimizing noise, lowering temperature, improving moisture and absorbing dust as well. In addition it may be helpful to improve thermal environment of urban area. Even though the research on porous penetrative pavement is still in its initial stage splendid future of it may be expected because of the various advantages of it

    Studies of Shell Colour Genetics and Resistance Characteristics of Hybrid Progeny of Haliotis diversicolor

    Get PDF
    本文以杂色鲍为研究对象,从贝壳颜色的遗传学、生化组成、免疫防御特性及生态因子胁迫下的抗性四个方面阐述了杂色鲍质量性状遗传、营养与免疫方面的内容。主要的结果如下: 1.杂色鲍贝壳颜色的遗传学和标记研究:采用家系育种的方法,将贝壳颜色为黄色的突变型杂色鲍与贝壳颜色为褐色的正常表型杂色鲍进行了连续2代的交配实验。结果表明,杂色鲍的黄壳色明显受到遗传因素的影响,当至少一方亲本中有黄壳色时,后代中同样出现黄壳色表型的个体。杂色鲍贝壳上的黄壳色不会随生长而消失,可作为一种稳定的形态标记,用于标识黄壳色突变型的个体,该标记技术也可用于杂色鲍的养殖技术和遗传学研究。此外,选用了贝壳颜色遗传学实验中建立的贝壳...In this research, quality traits genetics, nutrition and immunology of small abalone Haliotis diversicolour were studied in four parts: genetics of shell colour, biochemical compositions, immune defense properties, resistance under the stress of ecological factors. The main results are as follows: 1. Shell colour genetics and markers of small abalone A recently discovered mutation that displays ...学位:理学硕士院系专业:海洋与环境学院海洋学系_海洋生物学学号:2242007115084
    corecore