纽曼也玩“绝色倾城”! 影音王M570评测

眼下MP3产品的设计现状很难让消费者提起消费欲望，模仿可能是MP3外观另辟蹊径的良好解决方案，那么这类产品就是要选择好时下非常流行的元素去追随了。本次参评的就是这样一款充斥着时尚元素的MP3播放器——纽曼影音王M570。 外观评测 NOKIA的“绝色倾城”系列手机着实让大家感受了一把与众不同的时尚，而今天我们要测试的这款影音王M570，大家可以很快联想到这款MP3在外观方面的特点——绝色倾城。

抢占中国物流领先地位——访CEVA物流中国区总裁余曼影

“CEVA中国的发展潜力很大,我们对中国的市场和经营者有很大信心,公司未来将更加注重抢占广泛的市场领域,希望能够在非汽车行业中也能占到领先地位。我们有567家仓库,2005年的营业额是35亿欧元,希望大家记住这个数字,再过几年后,我们会看到这个数字是翻倍的。”余曼影毫不掩饰自己对中国市场的勃勃雄心。

关于对全国文影标第五届委员会标准化工作先进集体和先进个人进行表彰的决定

为了对在全国文献影像技术标准化技术委员会第五届委员会期间,在标准化工作中做出突出成绩的同志进行表彰,经各分会根据工作实际评选推荐,全体委员会讨论通过,共计1个分会、9名个人荣获先进分会和先进个人光荣称号。

Low temperature Raman study of PrCoO_3 thin films on LaAlO_3(100) substrates grown by pulsed laser deposition

Thin films of PrCoO3 were deposited on LaAlO3 substrates by pulsed laser deposition technique.X-ray diffraction result indicates that films are single phase and c-axis textured.To investigate the spin state transition,Raman spectroscopy measurements were performed at different temperatures.The position of the Raman modes is found to increase while full width at half maximum(FWHM) of these modes is found to decrease with the decrease of temperature across spin state transition temperature(220 K) of PrCoO3.

Projection Operator and Feynman Propagator for a Free Massive Particle of Arbitrary Spin

Based on the solution to the Bargmann Wigner equations, a direct derivation of the projection operator and Feynman propagator for a free massive particle of arbitrary spin is worked out. The projection operator constructed by Behrends and Fronsdal is re-deduced and confirmed, and simplified in the case of half-integral spin, the general commutation rules and Feynman propagator with additional non-covariant terms for a free massive particle with any spin are derived, and explicit expressions for the propagators for spins 3/2, 2, 5/2, 3, 7/2, and 4 are provided.

The Testing Intelligence System Based on Factor Models and Self-Organizing Feature Maps

Presented is a new testing system based on using the factor models and self-organizing feature maps as well as the method of filtering undesirable environment influence. Testing process is described by the factor model with simplex structure, which represents the influences of genetics and environmental factors on the observed parameters - the answers to the questions of the test subjects in one case and for the time, which is spent on responding to each test question to another. The Monte Carlo method is applied to get sufficient samples for training self-organizing feature maps, which are used to estimate model goodness-of-fit measures and, consequently, ability level. A prototype of the system is implemented using the Raven＇s Progressive Matrices （Advanced Progressive Matrices） - an intelligence test of abstract reasoning. Elimination of environment influence results is performed by comparing the observed and predicted answers to the test tasks using the Kalman filter, which is adapted to solve the problem. The testing procedure is optimized by reducing the number of tasks using the distribution of measures to belong to different ability levels after performing each test task provided the required level of conclusion reliability is obtained.

同桌冤家

在上幼儿园的时候,马小跳和路曼曼就是一个班的。那时候,幼儿园的老师就让路曼曼管马小跳,因为路曼曼是幼儿园最乖最乖的乖娃娃,是老师的小帮手。马小跳呢,是幼儿园最淘气最淘气的淘气包,光靠老师来管他。

Remarks on Thurston's Construction of Pseudo-Anosov Maps of Riemann Surfaces

It is well known that certain isotopy classes of oseudo-Anosov maos on a Riemann surface S of non-excluded type can be defined through Dehn twists tα and tβ along simple closed geodesics α and β on S,respectively. Let G be the corresponding Fuchsian group acting on the hyperbolic plane H so that H/G≌S.For any point α∈S,define S = S／{α}.In this article, the author gives explicit parabolic elements of G from which he constructs pseudo-Anosov classes on S that can be projected to a given pseudo-Anosov class on S obtained from Thurston＇s construction.

Entangled Three Qutrit Coherent States and Localizable Entanglement

Choosing I-concurrence as the measure of bipartite entanglement and using yon Neumann projective local measurements, localizable entanglement （LE） in a three-qutrit system is studied. A superposition of the qutrit-coherent- state of this system is considered ant its LE is obtained and analyzed as a function of the relevant parameters. It is observed that one may achieve the maximal entanglement or no entanglement at all, depending on the choice of the parameters involved.

Variational formulas of higher order mean curvatures

In this paper, we establish the first variational formula and its Euler-Lagrange equation for the total 2p-th mean curvature functional .M2p of a submanifold Mn in a general Riemannian manifold gn^n＋m for p = 0, 1,..., [n/2]. As an example, we prove that closed complex submanifolds in complex projective spaces are critical points of the functional M2p, called relatively 2p-minimal submanifolds, for all p. At last, we discuss the relations between relatively 2p-minimal submanifoIds and austere submanifolds in real space forms, as well as a special variational problem.

The Gradient Estimate of a Neumann Eigenfunction on a Compact Manifold with Boundary

Let eλ（x） be a Neumann eigenfunction with respect to the positive Laplacian λ on a compact Riemannian manifold M with boundary such that A eλ = λ2eλ in the interior of M and the normal derivative of ex vanishes on the boundary of M. Let xλ be the unit band spectral projection operator associated with the Neumann Laplacian and f be a square integrable function on M. The authors show the following gradient estimate