1,188 research outputs found

    Design and implementation of network routing classifier under impact of big difference data

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    针对大差异数据冲击下路由器存在路径选择误差大的问题,设计大差异数据冲击下的网络路由分类器,其主要由FPGA开发板、模/数采集器和数字信号处理器组成。分类器先对网络路由分类函数进行设计,并将其写入FPGA开发板。当网络信道存在大差异数据冲击时,FPGA开发板将调用网络路由分类函数对大差异数据进行预分类,获取预分类结果并将其传送到模/数采集器。模/数采集器将预分类结果转换成低压差分信号,数字信号处理器对该低压差分信号进行特征提取和参数修正,进而获取最佳分类结果。实验结果表明,所设计的分类器具有信道增益效果好、分类速率高和信道失效率低的特点。In view of great error in the path selection of router under impact of large differences data,a network routing classifier under the impact of big difference data is designed.It is mainly composed of FPGA development board,modulus collector and digital signal processor.The network routing classification function of the classifier is designed and then written into the FPGA development board.When there is a big difference data impact to network channel,the FPGA development board will call the network routing classification function for pre?classification of large difference data to obtain preliminary classification results and send them to the modulus collector.The modulus collector transforms classification results into low?voltage difference signal.The digital signal processor executes feature extraction and parameter correction of the low?voltage differential signal,so as to obtain the best classification results.The experimental results show that the designed classifier has the characteristics of good channel gain effect,high classification rate and low channel failure rate.国家自然科学基金(70873100

    Dissociation of Emotional Conflict Effects with Positive or Negative Target

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    目的:考察情绪冲突效应是否随目标刺激情绪价的不同而改变。方法:以26名大学生为被试,采用情绪Flanker范式,实验材料为线条情绪人脸,要求被试判断中心的目标人脸的情绪类型是积极还是消极。结果:在目标刺激为积极人脸的情况下,出现了显著的情绪冲突效应;而在目标刺激为消极人脸的情况下,没有发现显著的情绪冲突效应。补充实验的结果表明,这种分离不是因情绪人脸的知觉特征的差异造成的。结论:情绪冲突效应会随着目标刺激的情绪价而改变,提示未来的情绪冲突研究需区别对待不同情绪价或情绪类型的目标刺激

    Design and Implementation of Insurance Material Management System

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    当今社会,保险业务的数量由于社会的发展、人们对保险意识增强而快速增加。保险业务飞速的发展,要加强企业竞争力必须从纸笔记录向信息化转变。本课题主要研究保险业务管理系统,其中包括客户资料、被保人资料、受益人资料、保单信息、缴费信息的管理。 本课题以保险管理系统为实际研究情况,以C++作为开发语言,结合SQLServer2005数据库,开发一个基于C/S模式的保险公司业务管理系统。该系统具有客户资料管理、保单信息管理、用户管理等功能,不仅可以减少维护数据的人力成本,也可以提高工作效率。因此分析与设计一个保险信息管理系统,具有重要的科学意义和实用价值。 论文研究内容包括五方面,第一是分析保险业务及...In today's society, the number of insurance business increase rapidly insurance due to the development of society and people’s enhanced awareness on insurance. Because of the fast development of insurance business, enterprises need to informationize the traditional way of pen and paper records to strengthen the competitiveness of enterprises. The main subject of this issue is the research on insur...学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X201123013

    Analysis of Moderate Level of Social Security of Fujian

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    社会保障被喻为社会的“安全网”和“稳定器”,它在维护社会稳定、促进社会和谐、支撑经济快速发展方面发挥着重要作用。学术界通常采用社会保障水平作为衡量社会保障程度的主要指标。社会保障水平是一定时期内一个国家或地区的社会成员享受社会保障高低程度的表示,国际上通常将其表示为社会保障支出占国内生产总值(GDP)的比重。社会保障水平应当与经济发展水平相适应,在进行社会保障制度改革的时候,应当考虑社会保障水平的适度性。与经济发展相适应的社会保障水平将促进经济健康发展。反之,不适度的社会保障水平将阻碍经济的发展。社会保障水平过高将导致政府财政的负担加大,这将加重社会经济的负担,易陷入“福利陷阱”;社会保障水平...Social Security has been called social "safety net" and "stabilizer". It plays an important role in maintaining social stability, promoting social harmony, and supporting the rapid economic development. The level of social security is often used as the key indicator to measure the degree of social security by academia. The level of social security refers to the degree of social security that the s...学位:经济学硕士院系专业:经济学院财政系_劳动经济学学号:1552008115191

    我国企业债转股风险及其对策研究

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    债转股是近年来我国为了解决商业银行不良资产率较高的问题而提出的政策,它是指国家建立专门的资产管理公司用于接收商业银行的不良资产,当商业银行存在着不良资产难以收回时可以将对企业的债务债权关系转变为资产管理公司对企业的股权或者产权关系。为了解债转股过程中存在的风险,本文首先对债转股的原理进行分析,在了解其形式和功能的基础上提出债转股在运行的过程中存在的风险,并提出相应的政策建议

    Differences in Mollusk Fauna between Pristine Mangroves and Seawall-fringed Mangroves

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    目前堤前红树林是中国红树林的主体,中国81.3%的红树林是堤前红树林,而且各个省区的堤前红树林比例都超过60%。“海堤+堤前红树林”被认为是具有巨大生态、经济和社会效益的防护模式。中国红树林的保护、管理和恢复,都是依照“海堤+堤前红树林”模式展开的。 软体动物是红树林底栖生物的重要类群,对红树林生态系统结构和功能的维持具有重要作用。由于其固有的保守的生活史,对环境变化十分敏感,对人类对自然环境的干扰有着明显的指示作用。实验比较了堤前红树林和自然过渡红树林两种生境软体动物的种类组成和群落结构,结合植物群落结构和沉积物特性的调查,探讨了造成自然过渡红树林和堤前红树林软体动物群落差异性的原因,为从...Currently, the seawall-fringed mangrove is the main form of Chinese mangroves. About 81.3% of Chinese mangroves are seawall-fringed mangroves, and this ratio is more than 60% in each province. The protection mode of “seawall+seawall-fringed mangrove” was considered to be of great ecological, economic and social benefits. The protection, management and restoration of Chinese mangroves were in accor...学位:理学硕士院系专业:生命科学学院生物学系_动物学学号:2172009115202

    Research on Heuristic Algorithms for the Two-dimensional Packing Problem

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    装箱问题是一个经典的组合优化问题。简单地说,装箱问题就是将若干不同尺寸的物体互不重叠地放入有一定容量的箱子中以达到某种最佳目标。装箱问题被广泛应用于计算机科学领域和工业领域,多处理器任务调度、内存管理、货物装载以及原料切割等都是装箱问题在实际应用中的具体体现。因此,研究装箱问题具有重要的理论意义和应用价值。从二十世纪七十年代起,学术界就对装箱问题进行了广泛而深入的研究,但是由于装箱问题是NP难的,具有高度复杂性,用一般的数学方法很难求解。因此,在最近的几十年,启发式算法被广泛应用于装箱问题的求解中。本文首先对装箱问题的研究现状、问题分类及求解算法进行了综述和分析,然后重点对二维矩形装箱问题进行...The packing problem is a typical combinatorial optimization problem. Simply, the packing problem is to pack the objects of different sizes into a defined space so as to obtain the specified optimal objective. The packing problem has been widely applied to the fields of computer science and industry, such as multiprocessor scheduling, memory management, goods loading and stock cutting, so the packi...学位:工学硕士院系专业:信息科学与技术学院计算机科学系_计算机软件与理论学号:20042801
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