基于宏观调控下的房地产市场发展思考及对策

我国当前的房地产市场宏观调控,是建立在房地产市场运行客观基础之上的理性选择。根据房地产市场运行规律和特征,房地产市场发展应定位于小康阶段和城市化;房地产市场宏观调控应立足于可持续发展,实现市场的和谐发展

Study on Inverse Problem Based on the Group Decision of Fuzzy Sets

群决策是现代决策科学的一个重要组成部分，它的理论和方法在工程、设计、经济、管理和军事等诸多领域中有着广泛的应用。在群决策过程中，由于客观事物的复杂性、不确定性以及人类思维的模糊性，需要处理大量不确定的数据。一般而言，决策专家对评价准则的判断包含着大量的不确定的信息，反映了专家的主观倾向和个人偏好。而在群决策过程中，决策专家的评判水平直接影响到群决策的结果。因此，对群决策中决策专家的评判水平进行逆判的研究具有重要的理论和现实意义。 本文首先介绍了模糊数学和群决策逆判问题的基础知识；然后基于直觉评价矩阵的群决策逆判问题进行了研究，提出了一种新的直觉模糊集上的相似度公式；接着介绍了区间直觉模糊集的...As an important component of the modern decision-making science,group decision making is widely used in many fields such as engineering design、economic、management and military etc. During the process of decision making,owing to the vaguenes and uncertainty of the objective things, large quantity of uncertain data need to be processed.generally speaking,Decision-making criteria for evaluating exper...学位：工学硕士院系专业：信息科学与技术学院自动化系_系统工程学号：2322006115257

Handwritten digit classification algoritnm based on PARAFAC2 decomposition

提出了基于平行因子2（PARAFAC2）分解的手写数字识别算法，与基于高阶奇异值分解的算法相比较，新方法的识别率没有降低，但是效率有所提高，更重要的是，新方法可以处理手写数字维数互异的情形。实验结果验证了算法的有效性。In this paper, we propose an algorithm for handwritten digit recognition based on the paral- lel factor 2 （PARAFAC2） decomposition. Comparing with the algorithm based on higher order singular value decomposition, the recognition rate of our method does not decrease, however, the efficiency is increased. Moreover, the new method can handle the case in which dimensions of handwritten digits are different. Numerical results validate the efficiency of our algorithm.贵州省科学技术基金项目（黔科合J字[2013]2207号）;贵州省教育厅自然科学基金项目（黔教合KY字[2015]352号

基于直觉模糊集的群体决策中的逆判问题的研究

研究基于直觉模糊评判矩阵的群决策逆判问题。给出一种新的直觉模糊集上的相似度公式,并提出与决策群体意见整体相似性程度最高的“理想“直觉模糊评判矩阵的构造优化方法,利用该评价矩阵来评价专家的评判水平。最后,通过一个算例说明该方法的有效性

Spatial niches of dominant zooplankton species in Sanmen Bay,Zhejiang Province of East China

生态位与种间竞争、资源利用密切联系,体现了物种在群落中利用资源的能力.为探明三门湾浮游动物分布格局的形成和影响因素,分别采用SHAnnOn公式和PETrAIlIS指数测定了浮游动物优势种生态位宽度和生态位重叠,并通过典范对应分析研究生态位分化状况.结果表明:百陶带箭虫、背针胸刺水蚤、短尾类幼虫等沿岸种的空间生态位较宽,而肥胖软箭虫、中华假磷虾等外海种的空间生态位较窄;具有捕食-被捕食关系的不同类群物种(如箭虫、仔鱼和水母分别与桡足类)有较高的生态位重叠,而同一类群物种(如桡足类及箭虫)间的生态位重叠值较低;浮游动物分布受温度、盐度和叶绿素A的影响较大,受营养盐影响较小.浮游动物空间生态位与生活类型、种间竞争、摄食等多种因素相关.Ecological niche has close relations with inter-species competition and resources utilization,and thus,can be used as an indicator to symbolize the resources utilization capability of certain groups of related species.In this paper,the niche breadth and overlap of the dominant zooplankton species in the Sanmen Bay of Zhejiang were determined by Shannon' s formula and Petraitis index,respectively,and the differentiation of the niche was studied by canonical correspondence analysis(CCA),aiming to approach the distribution features of coastal zooplankton and related affecting factors in the Bay.In the study area,some coastal species such as Zonosagitta bedoti,Centropages dorsispinatus,and brachyuran larvae had wider niche breadth than the pelagic species such as Flaccisagitta enflata and Pseudeuphausia sinica,and the species of different groups with prey-predator relation had a greater niche overlap than those of the same groups without this relation.The CCA analysis showed that the spatial distribution of the zooplankton was more affected by water temperature,salinity,and chlorophyll a content rather than nutrients.The spatial niche of the zooplankton species was correlated with their living habit,inter-species competition,and prey-predator relationship.国家重点基础研究发展计划项目(2010CB428903); 海洋公益性行业科研专项(201305043-3); 浙江省自然科学基金项目(Y5110166); 浙江省海水养殖重点科技创新团队项目(2010R50025); 国家海洋局第二海洋研究所基本科研业务费专项(JG1221;JG1222)资

空肠弯曲菌penner o:19 cjaA基因的克隆表达

目的克隆空肠弯曲菌penner o:19 cjaA基因,构建其原核表达载体,诱导表达及纯化蛋白,为基因工程疫苗的研制打下基础。方法扩增空肠弯曲菌penner o:19 cjaA基因,构建pGEM-T-cjaA克隆载体,以EcoRI和XhoI为酶切位点构建pGEX-4T-1-cjaA原核表达载体。表达载体转化E.coli BL21后诱导表达,SDS-PAGE鉴定表达产物,用Glutathione Sepharose4B纯化重组蛋白。结果成功构建pGEX-4T-1-cjaA表达载体,并获得浓度为10μg/μl的rGST-CjaA重组蛋白。结论成功构建pGEM-T-cjaA克隆载体及pGEX-4T-1-cjaA表达载体,获得重组蛋白rGST-CjaA,为研究空肠弯曲菌疫苗打下基础

电子认证服务标准体系研究

2oo5年4月1日,我国的《电子签名法》开始实施。这是我国国民经济和社会信息化领域的第一部法律, 也是《行政许可法》实施以来,以法律形式对直接关系公共利益的电子认证服务业设定行政许可,并授权信息产业部作为实施机关,对电子认证服务提供者实施监督管理的第一部

無障礙的社區環境

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