Manifold paper: A thin, light-weight paper used for duplicating work with carbon paper or for air mail letter. 打字纸:薄而轻身的纸.作空邮信纸或连同碳纸作为写文件用。
Manifold a letter with carbon paper 用复写纸复写一封信
Through exploring actual state controls over manifold organizations, this paper proposes the system of differential controls. 通过考察国家对多种社会组织的实际控制,提出了分类控制体系。
A nonlinear and adaptive method is proposed based on local manifold theory in this paper. 本文根据局部流形理论,提出了一类非线性自适应预测滤波模型。
The effect of installing the Helmholtz resonator in CA488 engine air intake manifold on engine performances is also analyzed in this paper. 并分析了在CA488进气管中装入亥姆赫兹谐振器对发动机性能的影响。
Moreover, the effects of the resonant intake manifold various construction parameters on volumetric efficiency are analyzed in this paper, and the best project is provided for the model 4108Q Diesel engine. 文中还计算分析了谐振进气系统各结构参数对充量系数φ0的影响规律,为LF4108Q型柴油机利用谐振进气系统改善其性能,提供一个最佳方案。
The results show that the error of estimated value of both throttle position sensor and manifold pressure sensor are less than 10%, and the strategy put forward in this paper is valid. 结果显示,大部分工况下进气压力传感器和节气门位置传感器的信号重构误差可控制在10%以内,表明了所提出的调节策略是切实有效的。
By introducing numerical manifold method with two sets of analytic grid, i.e., the net of mathematics and physics covers and making use of its maneuverability for disposing of the question of simulation of excavation, this paper emphatically solved numerical manifold method in simulation of excavation. 利用数值流形方法具有两套分析网格即数学覆盖网格和物理覆盖网格,因而处理开挖模拟问题具有灵活性的特点,重点解决了数值流形分析的开挖模拟分析方法问题;
By means of center manifold method, this paper gives methods for judging stability of critical nonlinear systems. Moreover, it uncovers connections between results obtained form center manifold method and other methods. 本文采用中心流形方法,给出了非线性系统临界稳定性的判据,并且得出了用中心流形方法所获得的稳定性判据和用其他方法所获得的稳定性判据之间的关系。
The big difference between measured and theoretic manifold of the circular array showed that the broadband constant beamwidth beamforming method used in the paper has good tolerance. 实验圆阵的实测阵列流形和理论阵列流形存在较大误差,这表明该文采用的可适用于任意结构阵列的宽带恒定束宽波束形成方法具有良好的宽容性。
To bring the plastic manifold into practical use in China, this paper mainly researches the design method of plastic air intake manifold cavity for gasoline engine. 本文主要研究汽油机塑料进气歧管型腔的设计方法。
The stability of the equilibrium solution is discussed in the OLG model of planner system, With a result close to the stable manifold theorem, the dimension of the problem is reduced, then the paper provides a global analysis of the dynamics of the model. 讨论平面上OLG模型的均衡解的稳定性,并利用一个类似稳定流形定理的结论,把二维动力系统化为一维动力系统,从而在整体上研究带有国家财政赤字的OLG模型。
The thermal fatigue failure of an engine exhaust manifold happened design during its working because of the incorrect structure. In the paper, the computational fluid dynamic ( CFD) technology was employed to calculate the external fluid of the exhaust manifold. 某发动机运行期间,由于不合理的结构设计导致排气歧管关键部位的热疲劳失效,为此采用CFD技术模拟排气歧管工作时的外流场;
Nonlinear singularity phenomenon in low frequency oscillation have been researched by use of Hopf bifurcation theory and centre manifold theory in this paper. 本文利用Hopf分歧理论和中心流形理论,揭示了低频振荡中的非线性奇异现象。
On the basis of bifurcation theory and center manifold theory, a new algorithm for analyzing the transient stability of power systems nearby the critical point is presented by means of the unstable limit cycle when the subcritical bifurcation occurs in this paper. 在分歧理论和中心流形理论的基础上,针对系统出现亚临界分歧的情况,借助不稳极限环,提出了分析这种在临界点附近的电力系统暂态稳定的方法。
A concept of adaptive switching manifold for one class of SISO linear systems with non-canonical form is presented in this paper. Meanwhile, the existing and stability conditions for sliding mode, and the invariability of sliding mode motion equation under the adaptive swiching manifold are proved. 本文针对一类非规范型的SISO线性系统,提出了一种新的自适应切换流形概念并对此时滑模的存在、稳定可达条件以及滑模运动方程的不变性进行了证明。
Let M be an m-dimensional Riemannian manifold, H~ n be the standard hyperbolic space with constant sectional curvature-1. In this paper we will study isometric minimal immersions of M into H~ n, and obtain the main results as follows. 设M是一个m维黎曼流形,H~n是标准的双曲空间,它有常数截曲率-1。
By discussing the volume form of a Finsler manifold, this paper gives the lower boundary of the volume growth provided that the mean covariance vanishes. 讨论了Finsler流形的体积形式,讨论了当平均协变为0时,Finsler流形的球体体积增长的下界;
The principle of electronically controlled variable intake manifold length of vehicle engine is introduced in this paper. The application of this system to Audi V8 ( 2. 8L) engine and Opel Astra ( 1. 8L) engine are made. 本文介绍车用发动机可变进气管长度电子控制原理,并举出了在奥迪VS(2.8升)发动机、欧宝Astra(1.8升)发动机上的应用实例。
Based on differential geometry and its fundamental concept& differential manifold, the space-time background is pointed out in this paper, its structure is analyzed and discussed further. 本文从近代微分几何及其核心概念微分流形着手,阐释了流形及相关问题与时空结构的关系;
Based on the tool of distribution of differential manifold, this paper gives the sufficient and necessary conditions of decoupling and linearization of multivariate nonlinear system by using the transformation of diagonal state feedback. 以微分流形的分布为工具,得到了一类非线性系统可通过对角状态反馈变换实现系统的解耦及线性化的充要条件。
By using the simplifying technique for dimension reduction of center manifold and bifurcation analysis, this paper gives a comparatively fast and effective method for stability study and it also deals with the analysis of bifurcation and stability of inertia cross coupling in aircraft rolling motion. 应用中心流形的降维技巧和分岔分析方法,给出了一种快速有效的稳定性研究方法,并对飞机滚转时的惯性耦合运动进行了分岔分析和稳定性分析。
Locally linear embedding ( LLE) is a widely-used manifold learning algorithm, in this paper we improve on the algorithm and put it to use in spatial data index. 局部线性嵌入方法是一种应用广泛的流形学习方法,本文提出算法的一种改进,并将其应用于空间数据索引。
Integral manifold model reduction ( IMMD) has been applied for the analysis of distribution system with dynamic voltage regulator ( DVR) in the paper. 利用积分流形模型化简(IMMD)的思想,给出了含动态电压调节器(DVR)配电网络的动态电压分析方法。
This experiment compared the effects of developing sweat fingerprints on A4 manifold paper, white envelope, newspaper and kraft paper with DFO and IDO reagents. 但是,实验研究发现,复印纸、白信封纸、报纸和牛皮纸上的汗液手印,用IDO法显现效果都优于DFO法。
However, in the air intake manifold R& D process, the assembly property is often overlooked. In this paper, design for assembly ( DFA) is applied to the design process of plastic intake manifold. 然而在进气歧管的设计开发过程中,装配性的研究是研发过程中经常被忽略的问题。
In this paper, we investigate this problem by using manifold learning and hierarchical learning. The main contents could be summarized as follows. ( 1) This paper presents an algorithm for recognizing dim moving target in infrared image sequence. 本文主要利用流形学习和分层学习理论开展研究,主要研究内容如下:(1)设计了一种红外序列图像小目标识别算法。
Considering the influence of unknown parameters to the stability of the synchronization manifold, based on adaptive theory, this paper exploits the Lyapunov stability theory to design the control signals and parameters update laws analytically. 考虑到系统未知参数对同步流形稳定性的影响,基于自适应原理,本文利用Lyapunov理论解析地设计了控制信号和参数更新规则。