308 research outputs found

    Research on Environmental Performance Audit

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    环境管理活动对经济可持续发展战略的实现至关重要,而环境绩效审计作为环境管理活动的工具之一,其重要性也日益凸显。当前,我国正处在全面建设小康社会的新的发展阶段,对环境质量的改善提出了更高要求,并将环境绩效审计工作提上议事日程。然而,我国对环境绩效审计理论研究还十分缺乏,已有研究也存在着许多缺陷和不足。因此,本文主要目的是要科学地借鉴国外先进经验和成果,为我国系统深入地研究环境绩效审计制度提供必要的理论指导,并为我国进一步全面有效地开展环境绩效审计实务提出切实可行的政策建议,以期对我国环境绩效审计发展做出贡献。 本文首先介绍了环境绩效审计的兴起,探讨了开展环境绩效审计的必要性。然后从受托环境责任...Realizing economy sustainable development strategy becomes every country’s common view, Environmental Performance Audit as one of environment management implements is paid close attention gradually. In the recent years, our country is in the new development stage to build an overall well-to-do society, the environment achievement having brought forward higher request, and the job to improving envi...学位:管理学硕士院系专业:管理学院会计系_会计学学号:2005130118

    旅游管理专业实验教学体系的构建

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    市场的竞争核心是人才的竞争,而人才的培养依赖于高校先进的教学理念和与市场接轨的人才培养模式。旅游管理专业的人才培养有着其独特性,要求高校注重其实践能力和业

    Global Classical Solutions to Initial Boundary Value Problems on the Isentropic Compressible Navier-Stokes and MHD Equations

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    Navier-Stokes~方程作为描述流体运动的模型,已被学界广泛接受并获得了深入的研究.但对其在高维有界域上整体古典解的研究却没有大的进展.基于此,本文主要研究可压~Navier-Stokes~方程和相关磁流体方程边值问题古典解的整体存在性,另外还给出了一个磁流体的爆破准则. 本文第一个结果是讨论高维~(2D~和~3D)~可压等熵~Navier-Stokes~方程边值问题古典解的整体存在性.我们对具有旋度型边值条件的~Navier-Stokes~方程,证明了初始密度包含真空的小能量古典解的整体存在性.在处理边值问题的过程中,一些新的困难被克服.首先,由于不知道~"有效粘性通量"~$F...As the model of describing the motion of fluids, the Navier–Stokes equations have been extensively studied by many physicists and mathematicians. However, there are few results about global classical solutions in bounded domains. For this reason, we mainly consider the global existence of classical solutions to initial boundary value problems of compressible Navier-Stokes and MHD equations. A...学位:理学博士院系专业:数学科学学院_基础数学学号:1902011015399

    Non Newton Filtration Equation with a Nonlinear Boundary Condition

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    本文研究了一类定义在具有光滑边界区域上的带有非线性源的pp-Laplace方程u_t=\textrm{div}\left(|\nablau|^{p-2}\nablau\right)-\lambdau^q,并且具有非线性边界条件|\nablau|^{p-2}\partialu/\partial\eta=u^m的初值问题,其中p\geq2,m>1.我们证明了:若q+10,q+10,q+1=mp/(p1)q+1=mp/(p-1),mp-2p+2>0,\lambdamp/(p-1),q>mq+1=mp/(p-1),q>m\lambda>m,问题的解整...In this work we analyze the existence of weak solutionsthat globally bound or blow-up in finite time for a Non Newton Filtration equation ut=div(up2u)λuq u_t=\textrm{div}\left(|\nabla u|^{p-2}\nabla u\right)-\lambda u^q in a smooth domain Ω\Omega with nonlinear boundary condition up2u/η=um,|\nabla u|^{p-2}\partial u/\partial\eta=u^m, where p\geq2, m>1. Then, blow-up in finite time occurs if q+10,q+10, ...学位:理学硕士院系专业:数学科学学院数学与应用数学系_基础数学学号:20042307

    海峡两岸权益薪酬会计准则与IFRS2的比较

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    本文介绍了我国大陆、台湾地区和IASB有关权益薪酬的准则,并对准则内容进行比较,分析了相关会计准则变动导致的经济后果

    不确定性对创业行动影响的理论研究

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    利用Milliken关于不确定性概念化理论,研究多维不确定性可能如何影响创业者的创业行动,有助于创业者抓住创业机遇成功创业,推动创业理论在中国的发展

    RESEARCH ON HIGH-RISE BUILDING AND ITS URBAN ECOLOGICAL ENVIRONMENT

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    【中文文摘】提出了高层建筑城市生态学的概念 ,在回顾高层建筑发展历史的基础上 ,指出高层建筑的城市生态问题 ,关系到城市居住区生活质量的改善以及城市生态环境的健康发展。结合国外高层建筑的建设 ,提出了可行的方案与对策 【英文文摘】The concept of high\|rise building ecology was raised in this paper.Based on the review of high\|rise building development,urban ecology problem that related with the improvement of residential environment quality and healthy of urban ecology environment were researched.Combined with the history of high\|rise building development,the advisable plan and countermeasure were advanced in the paper.宁波市计委研究项目 (甬计规批 [2 0 0 1] 12号

    WxSPROM-an Efficient Software for NMR/MRI Simulations under Inter-molecular Multiple Quantum Coherences

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    WXSPrOM是一款用于模拟核磁共振谱和磁共振成像的软件。结合积算符矩阵和非线性blOCH方程,该软件可以同时高效模拟经典理论和量子效应下的标量耦合、远程偶极耦合、扩散、化学位移、辐射阻尼、横向弛豫以及纵向弛豫等效应。这一款软件支持在模拟中进行基于图形界面的复杂脉冲序列的设计,并在模拟中支持各种自定义形状的脉冲、梯度。它采用JAVA语言编码,基于EClIPSE rCP插件模式开发,提供良好的用户体验和极强的可扩展性。WXSPrOM还可以与小组开发的WXnMr磁共振仪控制软件进行无缝连接,极大的拓展了后者的功能。WxSPROM can be used to simulate nuclear magnetic resonance(NMR) spectra and magnetic resonance imaging(MRI).Com bining the product operator matrix with the non-linear Bloch equations,the software can be used to simulate the classical and quantum ef fects such as,scalar coupling,long-rang dipolar coupling,diffusion,chemical shift,radiation damping,transverse relaxation and longitudinal relaxation efficiently.WxSPROM supports the design of complex pulse sequence based on GUI and a variety of custom shapes for pulse/ gradient in the simulation.The software,written in Java,based on Eclipse RCP plug-in frame,provides a good user experience and has strong scalability.WxSPROM can be seamlessly connected with WxNMR,which developed for magnetic resonance instrument by our team,greatly expanded the functions of latter

    过程竞争与技术创新的动力

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    就适宜于技术创新的市场条件而言,最重要的不是市场结构而是新旧技术的替代过程是否通畅,即过程竞争是否充分。唯有过程竞争充分的市场才能赋予技术创新持久不竭的动力。制约过程竞争充分性的诸多要素中最为重要的是行政垄断。来自我国省级行政区域的经验数据证实,一个区域其行政垄断的程度越严重则技术创新的动力越低。故此打破行政垄断、提高过程竞争的充分程度是激励我国企业从事技术创新的政策要点
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