查询词典 archimedean space

From our results we know that the average error of the Lagrange interpolation sequence and the Hermite interpolation sequence based on the Chebyshev nodes in the 1-fold integrated Wiener space equal weakly to the average error of their corresponding optimal approximation polynomial in the 1-fold integrated Wiener space,and as a kind of information-based operation,they have simple form and their recover functions are polynomials,in the 1-fold integrated wiener space,their average error equal weakly to the corresponding minimal information radius whose permissible information operators class is function values.

通过我们的结果可以知道，基于第一类Chebyshev多项式零点的Lagrange插值算子列和Hermite插值算子列在1-重积分Wiener空间下的平均误差弱等价于相应的最佳逼近多项式在1-重积分Wiener空间下的平均误差，并且作为形式简单且恢复函数为多项式的一种信息基算法，其在1-重积分Wiener空间下的平均误差弱等价于相应的以函数值计算为可允许信息算子的最小平均信息半径。

The paper summarizes how the growth and development of tree trunk and branch, crown of tree and phyllome influence the limit of extent of space, the scale of space and the shape of space in landscape architecture.

面对这样的矛盾，本文从植物个体和群落生长习性及环境因子的作用的角度，根据植物生长过程中植物个体和群体在大小和外形上的生长演变规律，总结出植物生命周期内枝干、树冠、叶幕的生长对园林空间的围合感、郁闭度、尺度、形态的影响规律。

Main contents of the second chapter "art words methods" are introduction of art words, basic writing skills and originality design of chinese and western characters, etc. Main contents of the third chapter "basic components of plane" are spot, strokes and spaces, etc. Main contents of the fourth chapter "format and rules of plane" are symmetry and balance, repitition and group tendency, rhythm and cadence, comparision and change, consonance and unification, breakthrough and variance, etc. Main contents of the fifth chapter "basic design of space of a whole page" are gridding system, visual process of space design, word editing, graph space design, etc. Main contents of the sixth chapter "color planning" are color introduction, surface color system, color and visual psychology, color planning, etc. Main contents of the seventh chapter "plane advertisment design" are newspaper and magazine advertisment design, outdoor and POP advertisment design, etc.

第二章"美术字技法"的主要内容有美术字概说、中外文字体的基本写法、中/外文字体的创意设计等；第三章"平面构成的基本要素"的主要内容有造型基本要素如点、线、面等；第四章"平面构成的形式法则"的主要内容有对称与平衡、重复与群化、节奏与韵律、对比与变化、调和与统一、破规与变异等；第五章"基础版面设计"的主要内容有网格系统、版面设计的视觉流程、文字编排、图形的版面设计等；第六章"色彩计划"的主要内容有色彩概论、表色体系、色彩与视觉心理、色彩设计等；第七章"平面广告设计"的主要内容有报刊广告设计、户外广告设计、 POP 广告设计等。

In the first part of this paper, we give some basic concepts of regular Sturm-Liouville problems and some Sturm-Liouville problems with eigenparameter in the boundary conditions and the definition and properties of the Krein space. Using the Krein space, we describe a class of Sturm-Liouville problems with eigenparameter in two boundary conditions and prove that it can generate a self-adjoint operator in Krein space with only point spectrum.

第一部分我们介绍了一些基本概念如正则Sturm-Liouville问题、边界条件含参数的问题、Krein空间等，并利用Krein空间的定义和性质描述了一类参数边界条件的Sturm-Liouville问题，证明它可构造一Krein空间上的自伴算子，并且谱全为点谱。

The method uses techniques such as document space transforming and principal component analysis to map original document vector in very-high-dimension term space to low-dimension principal component space, and then categorizes documents by comparing them to the centroid of each category.

该方法采用了文档空间变换和主成分分析技术，将文档的原始矢量表示从高维词条空间映射到低维主成分空间，并利用文档类别重心进行分类。

IPPCA is put forward in view of the feature original variables are projected into principal component space and tries to project inversely from principal component space to original variable space.

当某个或某些原始变量发生故障，经过主元分析将故障信息从原始变量空间投影到了主元空间。

According to the theory of beam phase space, the projective density distributions in four dimensional and two dimensional trace space are derived for some space charge distributions often used in accelerator physics.

理论和实验研究都已发现，它们与束流空间电荷的非均匀分布有密切关系。

According to the theory of beam phase space , the projective density distributions in four dimensional and two dimensional trace space are derived for some space charge distributions often used in accelerator physics. And, the relation between beam emittance and brightness with density distributions is developed too.

针对加速器中几种常用的束流密度相空间分布形式，根据束流相空间理论，推得了它们在四维和二维径迹空间中的投影密度，并给出了束流发射度和亮度与束流密度分布的关系式，为加速器束流测量和束流诊断提供理论依据。

Also the response amplitude will be changed with the initial conditions due to the nonlinear properties of the cables.Taking the bending stiffness, cable sag and cable inclination into consideration, the space vibration control of the cables using the visco-elastic dampers in cable-stayed bridges is investigated by joining the center difference method and the state space strategy. Both the maximum modal damping ration and the optimal damper size are obtained, then the practical suggestions are proposed for the design of the dampers. The space nonlinear vibration equations of the cable-damper system are derived, and anew hybrid method for solving the cable-damper system is presented by combing the Newmark method and Pseudo-force technology. According to the known properties of the cable-damper system, the nonlinear transient responses are analyzed under all kinds of excitations. Based on the transient response, the control effectiveness of the visco-elastic dampers is further demonstrated.

综合考虑了拉索抗弯刚度、垂度的影响，研究了粘弹性阻尼器对斜拉桥拉索的空间振动控制，联合中心差分方法及状态空间法，得出了拉索面内、外振动各阶模态可能达到的最大阻尼比及相应的最优阻尼器系数，并对斜拉桥拉索的阻尼器设计提出了参考建议：考虑拉索抗弯刚度、垂度及几何非线性，导出了索-阻尼器系统的空间振动非线性方程组，结合Newmark方法及伪力(Pseudo-Force)方法，创新地提出了求解非线性方程组的杂交方法，根据拉索-阻尼器系统的阻尼特性，在各种荷载作用下，对索-阻尼器系统的非线性瞬态振动响应进行了研究，从系统响应的角度更加直接地验证了阻尼器的控制效果。

Using the measure property of the original space it shows that the quotient space has its self-similar measure, and the support of the measure is the unique attractor of quotient space.

并且利用原空间的测度性质，提出了在商空间中也具有自相似测度，且自相似测度的支撑集就是商空间的唯一的吸引子。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。