252 research outputs found
Design and Implementation of Ordinary Invoice Billing Management System
新疆乌鲁木齐市税务局已经建立了专门的税务信息综合管理系统,能够完成税务日常工作需要。但是,在发票开票及管理方面还存在一些问题,小型企业、公司和商户仍然使用手写发票,这些纳税人需要到税务点购买手写发票,通过手写为客户开票。在这种方式下,税务部门不能很好的掌握纳税人的经营情况,对偷税漏税现象不能很好的监督。因此,本文专门针对这类纳税人开发了普通发票开票管理系统,以满足这些纳税人日常经营中对普通发票开票的需要。 本文结合了Java和SQLServer2008技术,设计并实现了普通发票开票管理系统,系统是在对用户实地调查的基础上开发的。本文对用户的需求进行调查和分析,分析了使用系统的用户类型,采用功...The tax bureau of Xinjiang Urumqi has set up a tax integrated information management system, it can provide the requirement of daily work. But there exists some problems in making invoice and management. Small enterprises, companies and businesses are still using handwritten invoice, taxpayers need to buy handwritten invoice and making invoice by handwriting. Under this condition, tax management d...学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X201323148
Design and Implementation of A Billiard Room Management Information System
摘要 随着我国社会各行各业的高速发展,人们对物质精神的追求有了显著的提高,特别是对于服务行业的服务质量有了更高的要求。 台球室作为休闲娱乐场所,受到不少人的青睐。尤其是近几年来,丁俊晖等国家台球名将,纷纷在国内外赛事中取得优异成绩,使台球运动受到更多媒体的关注,更多不同年龄段人的喜爱。 传统商业台球室管理系统软件,存在着计时计费繁琐,会员管理易混乱,商品进出记录不便,故障报修不及时,服务质量低,需要多人工现场操作等缺点,因而需要一款高可靠性,操作简便,流程清晰的台球室管理系统来统筹管理,提高服务效率。 本文通过描述台球室管理系统的设计与实现,来设计出一款节约人力物力,联系起消费者需...Abstract With the rapid development of all walks of life in our society, people's pursuit of material spirit has been significantly improved, especially for the service industry has a higher quality of service requirements. Billiards room as a leisure and entertainment, by many people of all ages. Especially in recent years, Ding Junhui and other national billiard star, have made outstanding ach...学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X201223091
Line Detection Algorithm Using Freeman Criteria
提出了一种简单而高效的在二值图像中检测目标物体直线边界的算法 基于Freeman提出的关于数字直线的准则和数字直线的特征 ,得出线段元是数字直线的组成部分这一性质 基于该性质 ,该算法以线段元为基本单位进行直线的构造 ,从而能高效、准确地检测出图像中物体边界中的直线 此外 ,该算法还可用于检测二值图像中物体边界的拐角This paper proposes a simple and efficient algorithm to detect line edge of objects in a binary image. Based on the criteria and characteristic of digital line suggested by Freeman, we derived that digital line is composed of sets of line segment cell. Derived from this property of line cell, in the algorithm proposed, line cells are used for connection to form line segment. It makes the algorithm very efficient and precise. This algorithm can also be used to detect corner of objects in binary images
Corner detection algorithm based on euclidean distance
拐点是数字图像中的一个重要信息载体,提出一种新的拐点检测算法,该算法并非寻找连续空间中曲率的离散近似计算方法,而是源于离散曲线的外观特征,推导出离散曲线上拐点处k个点对间欧氏距离平方和局部最小这一重要性质。基于该性质,本算法首先利用Freeman链码的性质过滤掉物体边界上明显不可能成为拐点的象素,然后在剩余的边界点中通过寻找该局部最小值定位出拐点。给出了本算法与四种著名拐点检测算法的对比实验。Corners are important information carriers in computer vision. A new algorithm was presented here to detect corners on contour in digital image. This algorithm was not going to search another way to approximately calculate the curvature of points on curves,which was defined in continuous domain,but utilized the character of corners in digital nature that the square sum of k Euclidean distance between points pair centered at a corner is locally lowest. Derived from this character,the new algorithm detected corners in a two-pass manner. First pass was to filter the points on a curve that obviously can not be corners by using Freeman chain-code. Second pass was to detect the locations of local minima of the square sum of Euclidean distance. Tests comparing the new algorithm to four famous algorithms were given
公共服务绩效评价的指标体系建构与应用分析——基于厦门市的实证研究
当前我国正处于社会转型的重要时期,管理理念正在由“管理型“向“服务型“转变。服务型政府的建设不仅需要政府职能转变,而且需要构建一套公共服务绩效评价体系,对其进行应用、检验,以确保政府公共服务的有效供给。将公民满意度和公共服务供给情况相结合的“双元综合评估“模型,用以指导公共服务绩效评价指标体系的设计和优化。在实际应用过程中,应注意合理界定目标群体,努力提高评价准确性;完善评价体系,量化评价指标;加强配套制度建设,保证指标体系的评估效果;加强与其他城市的合作,推广应用指标体系。国家自然科学基金重点项目《公共服务提供机制与方式研究》阶段性成果(70633001
Developing On-site,Quick Screening Platform for Artificial Pigments in Food Using Surface-enhanced Raman Spectroscopy
已有研究表明食品加工过程中添加的人工合成色素不仅不能提供营养物质,而且可能是导致小儿多动症的来源之一,影响儿童智力发育.基于表面增强拉曼光谱(SERS)原理和便携式拉曼光谱仪,提出了一种非定向的现场快速筛查方法.该方法只需对疑似含有人工合成色素的固体或液体状食品样品进行简单前处理,即可进行SERS检测.样品前处理和检测的总时长不超过15 min,检出质量浓度在1 mg/L水平,可有效满足政府职能部门的现场执法需求.除具有快速、方便、灵敏度高等特点之外,该检测方法的最大优势在于实现了未知样品的现场非定向测试:在同一种前处理过程和检测方法下,可对食品中常添加的亮蓝、胭脂红、日落黄、柠檬黄、苋菜红和诱惑红6种人工合成色素进行快速鉴定和半定量分析.As widely used additives in food processing,artificial pigments have no any nutrition but are potential sources of hyper-activity and affect the intellectual development of children.On the basis of surface-enhanced Raman spectroscopy( SERS) and portable Raman instrument,we developed a non-targeting,on-site and quick screening platform for artificial pigments in food matrix. SERS measurement could be carried out after the food matrix( either in solid or liquid states) being simply pretreated for 15 min.The detectable concentration is as low as 1 mg / L,a level meeting the demand of the on-site enforcement by the government.Besides the advantages of quick,easy-on-going,and high sensitivity,the most distinguished point of SERS is the non-targeting qualitative on-site detection for the typical pigment additives,including brilliant blue,carmine,sunset yellow,lemon yellow,amaranth and allura red,et al.,while both the pretreatment procedure and the SERS detection remain the same.国家自然科学基金(21473140);; 福建省高校产学合作项目(2016Y4012);; 中央高校基本科研业务费专项(2072016011
模拟林窗光照条件对南亚热带雨林土壤种子库幼苗萌发的影响
2002~2003年研究了模拟林窗光照条件对福建南靖和溪南亚热带雨林土壤种子库幼苗萌发的影响.结果显示:和溪南亚热带雨林土壤种子库萌发的乔灌木及木质藤本幼苗的种类有43种,其优势成分香楠(Randia canthioides)、三叉苦(Euodia lepta)、山油麻(Trema dielsiana)、山黄麻(Trema orientalis)、楤木(Aralia chinensis)等为先锋物种,杜茎山(Maesa japonica)为林下植物,榕属植物(Ficus)生态位较独特.在数量上,春季最高(1 391株/m2),秋季次之(1 116株/m2),夏季(940株/m2)和冬季(930株/m2)最低;在垂直分布上,土壤种子库0~2 cm与2~5 cm两个层次在种类组成上是一致的,对于同个物种一般上层数量明显高于下层;在出苗顺序上,各物种在不同季节的出苗顺序基本一致,白楸(Mallotus paniculatus)、三叉苦、山黄麻、盐肤木(Rhus chinensis)、山乌桕(Sapium discolor)、楤木等植物一般在萌发实验开始的早期出苗,香楠、笔管榕(Ficus virens)、凸脉榕(Ficus nervosa)、山油麻、黄毛榕(Ficus fulva)、玉叶金花(Psycho-tria pubescens)、野牡丹(Melastoma candidum)等在中期和晚期出苗,杜茎山、拟赤杨(Alniphyllum fortunei)、雅榕(Ficusconcinna)、红栲(Castanopsis hystrix)等一般在萌发实验晚期出苗
福建武夷山黄山松群落的钾、钠累积与循环
本文主要讨论武夷山黄山松群落的钾、钠累积和循环。测定结果表明:(1)群落现存量中钾、钠的库量分别为35.876g/m~2和2.637g/m~2,其中地上部分为19.944g/m~2(占总库量的55.59%)和1.817g/m~2(占68.90%);地下部分别为15.932g/m~2(占44.41%)和0.820g/m~2(占31.10%);(2)在钾、钠的生物循环中,年吸收量分别为2.230g/m~2·a和0.136g/m~2·a;年存留量分别为2.230g/m~2·a和0.036g/m~2·a;(3)钾的周转期55年,钠的周转期75年,钾的周转比钠快;(4)钾的富集率为1.160,说明该群落中林木仍在对钾吸收累积;而钠的富集率为0.929,说明了在该群落中林木对钠不再累积
福建武夷山黄山松群落的氮、磷累积和循环
本文是福建武夷山森林生态系统研究的一部分,主要讨论黄山松(Pinustaiwanensis)群落的氮磷累积和循环。测定结果表明:(1)群落现存量中氮(N)、磷(P)的库量分别为925.844kghm-2和45.981kghm-2,其中地上部分别为719.438kghm-2(占总库量的77.706%)和35.534kghm-2占77.280%),地下部分别为206.406kghm-2(占22.294%)和10.447kghm-2(占22.720%);(2)N、P的生物循环中,年吸收量分别为65.344kghm-2和2627kghm-2,年存留量分别为37.019kghm-2和1.695kghm-2,年归还量分别为28.325kghm-2和0.932kghm-2;(3)氮、磷的富集率分别为1.324和1.083两者均大于1,说明该群落对N、P仍在不断累积
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