Design and Implementation of Art College Library Management System

目前，伴随着计算机技术及网络技术的发展日新月异，标志着人类社会进入了信息化管理的新时代。全球数字化的网络环境早已形成，网络信息管理技术也不断成熟，这为艺术院校图书馆管理提供了一个良好的有利条件。但是艺术院校图书馆信息管理系统的建设现状还不完善，长期以来分散在各个独立机构，形式单一。艺术院校想更好发展自己，更好的为所有用户服务，构建网络环境下的艺术院校图书馆管理系统是它最佳选择。 本文的研究以艺术类学生学习资源的丰富性和实用性为主要设计目的，以广西艺术学院图书馆管理系统为背景，详细阐述了本系统从设计到实现的全过程，展示了本系统在不同实例下的测试效果。本系统是建立在.NETFramework2....With the continuous development and improvement of computer technology and network techniques, the human society has entered a net era. A worldwide digital internet environment has been founded. The constant improvement of the information technology provides the management system of library in art universities a good opportunity. However, the development of management system of library in art univ...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201123090

Design and Implementation of Meeting Management Information System for a College

计算机与网络技术的发展促进了信息技术的飞速发展，会议室信息管理作为高校信息化管理的重要组成部分，传统的会议室信息管理系统已经不再适合高校当前的业务需求。高校希望应用信息管理技术与计算机技术，使得会议室信息管理更加科学化、规范化。提高会议室信息管理的水平是本课题研究的重中之重。 针对上述问题以及高校会议管理的实际情况，本文首先依据软件需求工程理论对高校的会议管理需求进行了详细的分析，整理出了系统的总体需求流程，系统的主要功能需求和非功能性需求。然后基于系统需求分析成果，进行了系统的设计工作，系统的架构设计是基于MVC三层架构技术，通过该技术实现了系统的“高内聚、低耦合”特性；然后使用UML工具...With the development of computer and network technology, the development of information technology becomes rapid. But the traditional meeting room information management system, as an important part of the university management, is no longer suitable for the meeting room's current business needs. To make reservation information management more scientific and standardized, the Information managemen...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201323008

Design and Implementation of the Annual Report System of the Autonomous Region

工商年报系统是工商部门实行对所属管辖范围内所有的在册用户的管理系 统，能够简化以往的年检的复杂操作流程，每年用户只需要通过该系统，对自身 企业的经营情况进行详细的填写，对填写的信息进行公示，不需要再像往年一样， 将资质资料递交给工商行政部门；工商行政部门也不需要再对每年提交的年报资 料进行人工审核和录入，只需要对年报系统中的用户年报信息按照一定比例进行 抽查，对不合格的或者抽查到信息填写严重虚假的给予处理。本课题主要是对用 户使用系统的基本能功能，系统将如何实现用户信息年报进行了研究，其中对用 户登录模块、用户填报模块进行了详细的介绍。 本课题的研究主要是以自治区工商年报系统为...Annual industrial and commercial system is industrial and commercial departments to implement belongs to the jurisdiction of all registered users of the management system, can simplify the previous inspection of complex operation process, every user only need to through the system, the operation of the enterprise itself to detailed fill in, to fill in the information publicity, do not need aga...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201323140

Classification of Gene Expression Data Based on Dimension Reduction

利用基因芯片技术能够做到同时对多到数以万计的基因进行并行分析，随着该技术越来越成熟并得到广泛应用，现在已经有越来越多的基因表达数据测定出来，亟需处理，借助于计算机工具以及机器学习方法对这些大量数据进行分析是现在一个很重要的研究领域。其中，基因表达数据的分类研究是该领域的一个热点，通过分类能够帮助研究者发现正常细胞组织与疾病组织之间基因的本质差异，识别致病基因，对基因型疾病的临床诊断和治疗具有重要的意义。 基因表达数据具有“样本少、维数高、分布不平衡”的特点，这给分类带来了很多的困难和挑战。目前解决此问题的一个有效方法是在分类前对高维数据进行特征提取和降维，以达到去除与分类无关的基因、降低计...The invention of Gene Chip technique makes it possible to analyse thousands of genes simultaneously. With the rapid development of the technique, more and more gene expression data has been gained and accumulated. It is an important research field to analyse these data using computers and method of machine study, among which classification of gene expression data is a hot field. Classification can...学位：工学硕士院系专业：信息科学与技术学院_计算机科学与技术学号：2302012115293

Effects of wall temperature on boundary layer stability over a blunt cone at Mach 7.99

Effects of wall temperature on stabilities of hypersonic boundary layer over a 7-degree half-cone-angle blunt cone are studied by using both direct numerical simulation (DNS) and linear stability theory (LST) analysis. Four isothermal wall cases with Tw/T0= 0.5, 0.7, 0.8 and 0.9, as well as an adiabatic wall case are considered. Results of both DNS and LST indicate that wall temperature has significant effects on the growth of disturbance waves. Cooling the surface accelerates unstable Mack II mode waves and decelerates the first mode (Tollmien–Schlichting mode) waves. LST results show that growth rate of the most unstable Mack II mode waves for the cases of cold wall Tw/T0=0.5 and 0.7 are about 45% and 25% larger than that for the adiabatic wall, respectively. Numerical results show that surface cooling modifies the profiles of rdut/dyn and temperature in the boundary layers, and thus changes the stability haracteristic of the boundary layers, and then effects on the growth of unstable waves. The results of DNS indicate that the disturbances with the frequency range from about 119.4 to 179.1 kHz, including the most unstable Mack modes, produce strong mode competition in the downstream region from about 11 to 100 nose radii. And adiabatic wall enhances the amplitudes of disturbance according to the results of DNS, although the LST indicates that the growth rate of the disturbance of cold wall is larger. That because the growth of the disturbance does not only depend on the development of the second unstable mode

从《宣德十年月五星凌犯》看回回历法在明朝的使用

《宣德十年月五星凌犯》是15世纪40年代从中国明朝传入朝鲜李朝的一份重要的天文学文件,详细列出了明宣德十年全年月亮和五大行星之间以及它们对恒星的凌犯现象。经验算,这些结果都是用明初编订的《回回历法》中所给出的算法计算的,目的显然是为中国的凌犯星占服务的,与朱元璋下令翻译回回天文星占著作的初衷一致。新发现的其他史料也表明,明朝政府除了把回回历法用于日月食的预报外,每年还用它计算回回民用历书、天文年历以及月亮和五星的凌犯;而且,对月亮和五星凌犯的计算结果及其星占也确实被朱元璋用于自己的政治活动之中

Direct numerical simulation of hypersonic boundary layer transition over a blunt cone with a small angle of attack

The direct numerical simulation of boundary layer transition over a 5° half-cone-angle blunt cone is performed. The free-stream Mach number is 6 and the angle of attack is 1°. Random wall blow-and-suction perturbations are used to trigger the transition. Different from the authors’ previous work [Li et al., AIAA J. 46, 2899(2008)], the whole boundary layer flow over the cone is simulated (while in the author’s previous work, only two 45° regions around the leeward and the windward sections are simulated). The transition location on the cone surface is determined through the rapid increase in skin fraction coefficient (Cf). The transition line on the cone surface shows a nonmonotonic curve and the transition is delayed in the range of 0° ≤ θ ≤ 30° (θ = 0° is the leeward section). The mechanism of the delayed transition is studied by using joint frequency spectrum analysis and linear stability theory (LST). It is shown that the growth rates of unstable waves of the second mode are suppressed in the range of 20° ≤ θ ≤ 30°, which leads to the delayed transition location. Very low frequency waves VLFWs� are found in the time series recorded just before the transition location, and the periodic times of VLFWs are about one order larger than those of ordinary Mack second mode waves. Band-pass filter is used to analyze the low frequency waves, and they are deemed as the effect of large scale nonlinear perturbations triggered by LST waves when they are strong enough.The direct numerical simulation of boundary layer transition over a 5° half-cone-angle blunt cone is performed. The free-stream Mach number is 6 and the angle of attack is 1°. Random wall blow-and-suction perturbations are used to trigger the transition. Different from the authors’ previous work [ Li et al., AIAA J. 46, 2899 (2008) ], the whole boundary layer flow over the cone is simulated (while in the author’s previous work, only two 45° regions around the leeward and the windward sections are simulated). The transition location on the cone surface is determined through the rapid increase in skin fraction coefficient (Cf). The transition line on the cone surface shows a nonmonotonic curve and the transition is delayed in the range of 20° ≤ θ ≤ 30° (θ = 0° is the leeward section). The mechanism of the delayed transition is studied by using joint frequency spectrum analysis and linear stability theory (LST). It is shown that the growth rates of unstable waves of the second mode are suppressed in the range of 20° ≤ θ ≤ 30°, which leads to the delayed transition location. Very low frequency waves (VLFWs) are found in the time series recorded just before the transition location, and the periodic times of VLFWs are about one order larger than those of ordinary Mack second mode waves. Band-pass filter is used to analyze the low frequency waves, and they are deemed as the effect of large scale nonlinear perturbations triggered by LST waves when they are strong enough

Design and Implementation of Information Management System of Micro-Enterprise for an Operator

随着国家信息化带动工业化，工业化促进信息化的政策的实施，新一轮信息化浪潮正对运营商的企业经营管理造成冲击。运营商在信息化中起着举足轻重的作用。小微企业不但是信息化的重点领域，也是运营商的高端客户。运营商对小微企业客户市场开发的如何，决定其在运营商市场中的地位。 本文探讨构建一个某运营商小微企业管理系统，基于运营商日常的通讯服务的客户的特色，实现对小微企业进行服务时把握营销主动权，增强风险防范能力，有效解决通讯投入过程中信息不对称的问题，并且提高风险定价能力，具有较高的实用价值。 本文首先利用需求及用例图，分析出档案管理、任务提醒、评分评级、统计分析和系统管理，并基于稳定性和安全性也定义了非...With the national information technology to promote industrialization, industrialization promotes the implementation of information technology, and then a new round of information technology has made some impact the business management of the operators. Operators play a pivotal role in the information. Small micro-enterprise is not only the focus of information technology, but also the high-end cu...学位：工学硕士院系专业：软件学院_工程硕士(软件工程)学号：X201323200