Propagated error analysis of digital elevation models generated by bi-cubic hermite interpolation methods

2013-2014 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

The Trend of Liberalization of International Investment and China’s New Investment Law Practice

我国自改革开放以来，制定了一系列的外资法律法规，创造了良好的投资环境，为我国的对外开放战略提供了有力的法律保障。随着信息革命的不断深入，国际经济联系更加紧密，世界各国之间的投资阻碍不断被削弱，自由化趋势不断增强，使得国际投资法产生了新的变化，特别是在投资环境、争端解决、准入前国民待遇和负面清单等方面发生了重大的变化。在这种情况下，我国原有的外资法体系出现了法的稳定性与不断发展变化的外部环境之间的矛盾，曾经在引进外资方面作出重大贡献的我国外资法面临进一步的完善。 在全球金融危机之后，为了促进经济的复苏和繁荣，发达国家再次提出建立新的自由贸易秩序，藉此走出危机带来的经济滑坡，迎来新一轮的经济增长...Since reform and opening up in China, developed a series of foreign investment laws and regulations, create a good investment environment, for our country’s opening to the outside strategy provides the powerful legal protection. With the deepening of the information revolution, accelerates the development of economic globalization, the international investment liberalization trend, makes the new d...学位：法律硕士院系专业：法律硕士教育中心_法律硕士(JM)学号：1302011115029

The Relation Between Coping Styles and Lottery Addiction for Chinese Lottery Buyers

目的:本研究探讨我国电脑型彩票购买者的应对方式与其成瘾倾向的关系。方法:全国6省兼顾彩票销售情况选取25个城市,并抽取各市投注站及购彩者,完成自编背景信息、彩票成瘾倾向量表(LAS)和简易应对方式问卷调查,对样本进行筛选和分组,最终确定高/中/低成瘾倾向组共计452名购彩者。结果:高/中/低成瘾倾向组间消极应对总分(F(2,449)=20.46,P<0.001)和各题目上普遍呈现出高成瘾倾向组采用更多的消极应对方式;回归分析发现:消极应对方式得分越高其功能损害和情感依赖维度得分越高;"培养业余爱好,积极参加文体活动"作为积极应对方式对功能损害维度具有一定的保护作用。结论:消极应对方式可以预测购彩者的成瘾倾向

Study on Relations of Mental Health Status and Personality Traits of Art School Students

目的:评估艺术类在校学生的心理健康状况和人格特征及二者之间的相关性。方法:以单纯随机抽样的方式在绍兴地区艺术学校中抽取468名学生,采用心理健康测查表(PHI)和Y-G人格测验进行逐一测查,以PHI的临床分量表来评估受试者的心理健康状况,同Y-G人格测验的12种人格特质进行多元线性回归分析。结果:回收有效问卷426份,其中较轻和严重心理问题的检出率分别为44.37%和17.61%,存在的心理问题依次是兴奋状态(19.48%)、脱离现实(19.01%)、抑郁(15.02%)、躯体化(14.55%)、焦虑(13.85%)、精神病质(13.15%)和疑心(12.91%)。各种心理问题都存在有害或有益的人格特质因素,而且作用程度不同。结论:校方应重视学生的心理健康问题,通过积极的心理健康监测和心理健康教育,以及有针对性的个体心理辅导,培养学生健康而有益的人格特质

Delay-Constrained Mobile Energy Charging in Wireless Sensor Networks

为了延长无线传感网的生存期,基于可充电的移动设备,研究设计了一种无线传感网中移动式能量补充的方法,移动节点可以在为传感器节点补充能量的同时收集数; 据.首先,通过将无线传感器网络监测区域分割为大小相同的子区域,该子区域内的节点组成一个簇;其次,以一个簇内的总能量为计算依据,设计移动节点的路径; 生成算法以确定能量高效的移动路线;最后,使用10种不同的随机网络拓扑图进行了仿真实验,以节点移动速度和时延为限制条件分别得到了对比数据.结果表明; ,本文提出的算法与NJNP( nearest-job-next with preemption)算法相比在时延相同的条件下( 800; s),生存期提升了6 000 s左右,在节点速度5 m/s条件下生存期提升了将近14 000; s.证明本文所提方法有效地提高了充电效率,延长了网络的生存期,可用于大规模的无线传感器网络.In order to prolong the lifetime of wireless sensor networks by using; energy-rechargeable mobile devices,this paper designs a mobile energy; replenishment method wherein a mobile element gathers data and recharges; sensors simultaneously. Firstly,the whole sensor network is divided into; several sub-regions equally and the sensors in each sub-region are; formed into a cluster. Secondly, considering the energy in a whole; cluster,the mobility path is designed to find the energy-efficient; mobile trace of the mobile element. Finally,in the simulation; experiment,we used ten different random network topologies to show the; comparisons with extensive simulation experiments under different; velocities and deadlines. The results indicate that the proposed; algorithm increases lifetime by approximately 6 000 s compared with; Nearest-Job-Next with Pre-emption( NJNP) under the deadline of 800 s.; Moreover,the proposed algorithm increases lifetime by approximately 14; 000 s compared with NJNP at velocity of 5 m/s. Thus,the proposed; algorithm can improve recharging efficiency and prolong the lifetime of; wireless sensor networks,which can be used in large-scale sensor; networks.国家自然科学基金资助项目; 福建省高等学校杰出青年科研人才培育计划资助项

Relationship between Depression,Anxiety and Cardiac Events after Coronary Artery Bypass Grafting

目的:前瞻、序列、对比研究我科行冠状动脉旁路移植术(coronary artery bypass grafting,CABG)的患者术后1年抑郁、焦虑的状况以及心血管事件的发生率。方法:2005年10月至2006年8月,以我科连续行择期CABG术的69例患者为对象,分别在术前1周内、术后出院前1天、术后1年使用ZUNG氏抑郁自评量表和焦虑自评量表进行抑郁、焦虑状态评分,同时随访术后1年的心血管事件的发生率。结果:术前24例(34.8%)存在抑郁焦虑状态,出院前33例(47.8%)存在抑郁焦虑状态,术后1年随访时10例(14.5%)存在抑郁焦虑状态。术后1年随访时共有6例(8.7%)患者发生心血管病事件,其中5例再次入院。术前存在抑郁焦虑的患者与不存在抑郁焦虑的患者相比:术后住院时间延长[(19±8)dvs.(16±6)d,P=0.003],容易出现伤口并发症(3/24vs.0/45,P=0.039),出院前和术后12月随访时不良情绪的发生率较高(分别为75%vs.33%,P=0.001;29%vs.7%,P=0.017);随访时存在抑郁焦虑的患者与不存在抑郁焦虑的患者相比:术前和术后发生心律失常更多见(3/1..

全参数全约束优化对钢筋混凝土框架结构设计的造价分析

目前的优化设计一般是将参数简化为一维问题或多维问题,或为全参数优化设计,但约束条件不够充分.针对这些不足,本文建立了更全面的符合工程设计的全参数全约束优化设计模型,利用MATLAB中的fmincon函数进行寻优计算,它可以同各种结构设计软件链接进行参数优化,如本文算例采用了中国建筑设计研究院开发的PKPM软件中已有的内力计算功能.最后,通过算例将各参数对造价影响程度进行分析比较,得出了定性及定量的结论,优化后的结构造价降低显著.与当前的钢筋混凝土框架结构优化设计相比,本文具有较强的实用性、寻优计算快捷等优点

Study of Visual Servoing for Microassembly Based on Focus of Microscope

【中文文摘】利用显微镜聚焦理论,沿显微镜光轴方向移动物体,不断计算图像的灰度变化之和,可判断出物体沿光轴的坐标,将这一坐标集成在伺服控制方程中,可完成立体视觉跟踪。这样,采用单目视觉系统就可以获得物体的三维坐标,避免了双目立体视觉系统的复杂结构。为了提高系统图像处理速度,利用卡尔曼滤波器对跟踪的特征点进行预测,并用窗口处理技术减小图像处理区域。实验和仿真结果表明,上述方法可完成复杂微装配的视觉跟踪,系统有好的实时性。 【英文文摘】When the object is moved along optical axis of microscope and the variational gray-level of the image is added at the same time,using focus theory,the coordinate of object is obtained along optical axis of microscope,the coordinate of object can be used in servo control equation to finish three dimension vision tracking of microassembly.In this way,when single vision system is used,the three dimension coordinate of object can be obtained and complicated stereo vision system can be avoided.In order to improve the speed of image processing, the Kalman filter is used to predict the next place of tracked point. The results on experimentation and simulation show that complex microassembly task can be finished and the speed of image processing can be improved国家自然基金(50275078)资助项

Decomposition of Cartan matrix and conjectures on Brauer character degrees

设g为有限群,n是g的正规子群.记J=J(f[n])为f[n]的JACObSOn根,I=Ann(J)={α∈f[g]|Jα=0}为J在f[g]中的零化子.本文主要研究了,根据f[g/n]和f[g]/I的CArTAn矩阵,分解f[g]的CArTAn矩阵.这种分解在CArTAn不变量和g的合成因子之间建立了一些联系.本文指出n中P-亏零块的存在性依赖于CArTAn不变量或者I在f[g]中的性质,证明了CArTAn矩阵的分解部分地依赖于b所覆盖的n中的块的性质.本文研究了b为n上的块且l(b)=1时,覆盖b的g中的块b的性质.在两类情形下,本文证明了块代数上关于brAuEr特征标次数的猜想成立,涵盖了HOlM和WIllEMS研究的某些情形.进而对HOlM和WIllEMS提出的问题给出了肯定的回答.另外,本文还给出了CArTAn不变量的一些其它结果.Let G be a finite group and N a normal subgroup of G.We denote by J = J(F [N]) the Jacobson radical of F [N] and by I = Ann(J) = {α ∈ F [G]|Jα = 0} the annihilator of J in F [G].In this paper, we study the decomposition of Cartan matrix of F [G] in terms of that of F [G/N] and F [G]/I.This decomposition establishes some connections between Cartan invariants and chief composition factors of G.We will prove that existing zero-defect p-blocks in N depend on the properties of I in F [G] or Cartan invariants.We shall demonstrate that the decomposition of Cartan matrix partly depends on properties of blocks in N covered by B.We are mainly concerned with the block B of G which covers a block b of N with l(b) = 1.In two cases, we will prove that the conjectures on Brauer character degrees hold for the block algebras, covering some cases studied by Holm and Willems.Furthermore we give an affirmative answer to the question raised by Holm and Willems in our cases.Some other results about Cartan invariants are presented here

An Analysis of the Curative Expenditure and Economic Burden of Mental Health and Mental Retardation Disorders in China

目的：核算我国心理与精神障碍疾病治疗费用规模，分析筹资结构，为优化我国心理与精神障碍疾病筹资和防控政策提供决策依据。方法：基于&ldquo;卫生费用核算体系2011&rdquo;核算我国2018年心理与精神障碍治疗费用，分析服务功能分布、机构流向和筹资负担等。结果：2018年我国心理健康与精神障碍治疗费用达871.68亿元，其中84.00%发生在医院，66.00%以上发生在住院。从筹资构成看，治疗费用中家庭卫生支出占比为31.80%。结论：我国心理与精神障碍治疗费用发展快速，现有资源配置不合理，需要优化功能与机构配置，治疗费用中居民个人付费水平较高，筹资政策需要进一步完善及优化。</p