查询词典 dissipative function

It is proved that the two-dimensional non-hydrostatic Boussinesq equations on the x ? z plane with the kinetic viscous term and the thermal dissipative term are unstable equations in the C 2 function class.2. If we replace the influence of the kinetic viscous term by Rayleigh friction and the thermal dissipative term by Newton cooling, the new generalized equations are stable equations in the C 1 function class. The construction of the solution space and the discriminating method for well-posedness of the problem of determining solution are given.

本文的主要结果如下：1证明了在y方向上均匀的带有运动粘性项以及热耗散项的两维非静力、Boussinesq近似的x-z面上两维旋转流体的控制方程组在C 2函数类中是一个不稳定的方程组。2如果以瑞利摩擦来代替粘性的影响，以牛顿冷却来代替热量的耗散，则所获得的一个新的方程组在C 1函数类中是一个稳定的方程组，给出了其解空间的构造和各种定解问题的适定性的判别方法。

The analysis results show that the train flow system is a dissipative system and its inner structure is a dissipative structure.

阐明了车流作为一个系统是一耗散系统，其内部结构为耗散结构。

It showed that dissipative holographic solitons can exist in a two-beam dissipative system in a proper condition.

实验表明，在适当条件下，耗散全息光孤子可以存在于不加外电场的以3-甲酰基-9-乙烯基咔唑为基础的有机光折变材料中。

It analyses the essential factors, structure, environment as well as functions of high-tech corporation system and compares the similarities and differences between high-tech corporation system and traditional corporation system; it analyses characteristics in each stage of high-tech corporation lifecycle as well as management roots which lead to the declination of high-tech corporation and researches into the similarities and differences between high-tech corporation lifecycle and other lifecycles, including traditional corporation lifecycle, industry lifecycle, product lifecycle and ecology lifecycle; it studies functional coupling in each stage of high-tech corporation lifecycle and puts forward ways to realize internal coupling of high-tech corporation system and external environment coupling; based on fundamental concepts of dissipative structure, it summarizes six inherent laws of system evolution and on the basis of those laws it advances six principles of high-tech corporation lifecycle management, it poses four sequential parameters of high-tech corporation system, analyses coordination and competition between them and then it advanced four principles of high-tech corporation management; it researches into various cycles in high-tech corporation and puts forward five measures of high-tech corporation management from the point of hypercycle theory; it studies the relations between carious innovation of high-tech corporation innovation system and sets up models of innovation motive forces and resistances, after that it analyses the alternation laws of innovation motive forces and resistances in each stage of high-tech corporation lifecycle, puts forward some measures to strengthen motive forces and lessen resistances and then from the angle of dissipative structure theory, it researches into relevant questions of high-tech corporation innovation management; it studies the location, identification, cultivation, cultivation and protection of high-tech corporation core competence and researches into the key elements of core competence management in each stage of lifecycle and then from the angle of synergetic, it discusses several questions of high-tech corporation core competence management; it studies seven common characteristics of successful high-tech corporation culture and puts forward the ways and measures to cultivate and innovate high-tech corporation culture after that it researches into the characteristics of corporation culture in each stage of lifecycle and discusses relevant questions of high-tech corporation culture management from the point of hypercycle theory; it studies interplay of high-tech corporation system and environment and researches into the development and management of high-tech corporation ecology system after that it analyses the construction and disintegration of high-tech corporation strategic alliance.

剖析了高新技术企业系统的要素、结构、环境与功能，比较了高新技术企业系统与一般企业系统的异同；剖析了高新技术企业在生命周期各阶段的特点及衰退的管理根源，探讨了高新技术企业生命周期与一般企业生命周期、产业生命周期，产品生命周期和生物生命周期的异同；研究了高新技术企业生命周期各阶段的功能耦合，提出了实现高新技术企业系统内部耦合及系统与外部环境耦合的途径；以耗散结构理论的基本概念为基础，总结归纳出系统演化的六大内在规律，据此提出了高新技术企业生命周期管理的六个原则；提出了高新技术企业系统的四个序参量，剖析了生命周期各阶段序参量的协同与竞争，进而提出了高新技术企业管理的四大原则；研究了高新技术企业中的各种循环，从超循环理论的角度提出了高新技术企业管理的五大措施；研究了高新技术企业创新系统中各种创新的关系，建立了创新动力和创新阻力模型，剖析了生命周期各阶段创新动力与阻力的变化规律，提出了增强创新动力与减小创新阻力的措施，从耗散结构理论的角度研究了高新技术企业创新管理的相关问题；研究了高新技术企业核心竞争力的定位、识别、培养及保护，剖析了生命周期各阶段核心竞争力管理的要点，从协同理论的角度研究了高新技术企业的核心竞争力管理的几个问题；剖析了成功的高新技术企业文化的七个共同特点，提出了培养和创新高新技术企业文化的途径及措施，研究了生命周期各阶段企业文化的特征，从超循环理论的角度探讨了高新技术企业文化管理的相关问题；研究了高新技术企业系统与环境的交互作用，探讨了高新技术企业生态系统的开拓与管理，剖析了高新技术企业战略联盟的组建与解体。

In Chapter 4, using the points of view of dissipative theory, the dissipative structure characteristics of ecological-economic system in the Changjiang River basin is analyzed, the development course and evolution characteristic of the ecological-economic system in the Changjiang River basin is demonstrated, and at last the negentropy sources and the entropy value of the ecological-economic system in the Changjiang River basin is radicated.

第四章运用耗散结构观分析研究了长江流域生态经济系统耗散结构特征，并用耗散结构理论论证了长江流域生态经济系统演变过程与演化特征，最后确立了长江流域生态经济系统的负熵源与熵值。

With the orthogonal wavelet transform, the dissipative events of the fluctuating moisture field contributing to inertial sub-range intermittency buildup have been identified. After the dissipative events have been suppressed by introducing a conditioning criterion, the intermittency that effects on the statistical structure of the inertial subrange is restrained.

利用离散正交小波变换將湍流湿度脉动场中的耗散事件分离出来，通过引入限制因子，將湍流脉动场中的耗散事件滤去后，能较好地抑制湍流湿度的间歇性。

When these parameters surpass a certain value, the system cannot appear the limitcycle. Through the various parameters\' changing, it demonstrates the forming process of the dissipative structure. Thus it show the dissipative structure\'s characteristic of the trophodynamics predation model and point out the ecological significance of the various parameters in the model.On the fourth chapter, the spruce aphides and its predator model is a predator model.

第四章，以两个捕食者作用于同一食饵的竞争关系模型为例，应用微分方程定性理论，对捕食模型中存在极限环的情况进行了讨论，用MATLAB在相平面上模拟出系统的极限环，此时该体系状态的发展呈现周期振荡趋势，从而揭示出营养动力学为基础的捕食模型耗散结构特征。

When unprotected ESDS devices or assemblies are candled on conductive/ highly conductive work surfaces, the work surface shall be covered with a grounded static dissipative work surface or meet the resistance requirement of static dissipative work surface, 10E5 to 10E9 ohms.

当使用不锈钢工作桌面处理材料时，必需在其上覆盖一层已接地的静电传导性桌面或其桌面电阻要符合静电传导性桌面电阻的要求，10E5到

A kind of discontinuous and noninvertible area preserving maps can display behaviours as a dissipative one, so it may be addressed as a "quasi dissipative system".

一类不连续不可逆保面积映象可以展示类似耗散的行为，因此可称其为&类耗散系统&。

Though comparing Canny operator and center B spline dyadic wavelet, the following conclusion is proven in this dissertation: a Center B spline function has tight support and Canny operator hasn't. b Center B spline function asymptotic convergence to Gaussian function and the derivative of Center B spline function asymptotic convergence to Canny operator. c The derivative of fourth order center spline B function is more suitable as a optimal edge detector than Canny operator. d Center B spline function can balance the smoothing and approximation of original data, and the fourth center B spline function is the only optimal solution of two order smoothing problem. e The error between the valve of time-frequency uncertainty of the fourth center B spline function and the lower bound of time-frequency uncertainty does not exceed 0.143% of the lower bound. f The derivative of center spline B function can construct a stability dyadic wavelet and can give a fast algorithm for multiscale edge detection, but Canny operator can do neither.

作者给出了Canny算子与中心B样条二进小波严格的比较证明，得出如下结论：a中心B样条函数具有紧支集，Canny算子不具有紧支集。b中心B样条函数的极限收敛于高斯函数，中心B样条函数的导数收敛于Canny算子。c四阶中心B样条函数的导数比Canny算子更接近最佳边缘检测滤波器。d中心B样条函数比高斯函数更能兼顾对原函数平滑和逼近的折中要求，并且四阶中心B样条函数是二阶逼近问题的唯一最优解。e四阶中心B样条函数的时频测不准关系值与时频测不准关系下界的逼近误差不超过0.143％。f中心B样条函数的导数可以构成稳定的二进小波，存在快速的多尺度算法；而Canny算子不构成稳定的二进小波，无法给出快速的多尺度算法。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。