江门联通的智能网应用

随着网络技术的发展，用户对新业务的需求不断涌现，智能网的演进给电信网络乃至数据网络都带来了巨大的变化。Internet和基于IP的网络及业务发展迅猛，为智能网的发展带来活力，智能网与Internet的融合越来越成为一种趋势。无线网络（GSM，CDMA），PSTN，Internet正逐步融合成一个     

二元样条S_3~1(Δ_2)的基函数及最小支集

设Δ_2是平面区域Ω=[a,b,c,d]的四方向剖分,S_3~2(Δ_2)是在Δ_2分划下的光滑度1和次数3的二元样条函数空间。利用B-网方法,我们构造了由七片多项式组成的B样条基,并证明了给B样条基具有最小支集。最后,附带给出了基函数的若干简单性质。     

Hydrodynamic Properties of Fe3O4 Kerosene-Based Ferrofluids with Narrow Particle Size Distribution

We investigate the hydrodynamic properties of Fe3O4 kerosene-based ferrofluids with narrow particle size distribution. The ferrofluids are synthesized by improving chemical coprecipitation technique. A narrow distribution of 8.6-10.8nm particle sizes is obtained from the magnetization curve with the free-form model based on the Bayesian inference theory. The fitting result is consistent with average particle size obtained from x-ray diffraction. With the increase of applied magnetic field and magnetic particle concentration, apparent viscosity of ferrofluids increases. At concentration 4.04%, the type of flow for the ferrofluid transforms from Newtonian to Bingham plastic fluid as the applied magnetic field increases.     

Isoscaling of the Fission Fragments with Langevin Equation

The Langevin equation is used to simulate the fission process of ^112Sn ^112Sn and ^116Sn ^116Sn. The mass distribution of the fission fragments are given by assuming the process of symmetric fission or asymmetric fission with the Gaussian probability sampling. The isoscaling behaviour has been observed from the analysis of fission fragments of both the reactions, and the isoscaling parameter α seems to be sensitive to the width of fission probability and the beam energy.     

A Quasi-Symmetric Coupled Quantum Well and Its Electric-Optical Properties

We propose a novel coupled quantum well structure, i.e. a quasi-symmetric coupled quantum well (QSCQW). Based on the demands of optical switching devices for quantum well materials, the QSCQW configuration is further optimized. Consequently, in the case of low applied electric field 25kV/cm and low absorption loss 100cm^-1, a large field-induced refractive index change (for TE mode, n = 0.0106; for TM mode, n = 0.0115) is obtained in the QSCQW structure at the operation wavelength 1550hm. The value is in one or two order of magnitude larger than that in a rectangular quantum well and about 50% larger than that of five-step asymmetric coupled quantum well structure under the same working conditions. The refractive index change obtained with the optimized QSCQW under so low absorption loss and applied electric field is very attractive for semiconductor optical switching devices. This manifests that the QSCQW structure has a great potential for applications in ultra-fast and low-voltage optical switches and in travelling wave modulators.     

ebXML消息服务规范的互操作性测评研究

主要研究如何对电子商务平台的互操作性进行测评，介绍了互操作性基本概念，描述了基于ebXML规范的互操作性测评体系，最后通过ebXML消息服务互操作性测试，验证了测试模型，步骤和评价标准的正确性与有效性．     

增强应用意识 培养建模能力

中国科学院数学物理部在《今日数学及其应用》一文中阐明了对数学应用的新认识：“国家的繁荣富强，关键在于高新的科技和高效率的经济管理，高新技术的基础科学是应用科学，而应用科学的基础是数学．”可以说数学的广泛应用已被视为科技进步的重要标志．高中数学教学目标已明确要求学生“逐步学会把实际问题归结为数学模型，然后运用数学方法进行探索、猜测、判断、证明、运算、检验，使问题得到解决．”这不仅符合于数学本身发展的需要，也是社会发展的需要，是培养适应当今以高科技为主旋律的人才的需要．所以在数学教学中，加强对数学应…     

微导通孔工艺用附树脂铜箔

形成微导通孔的方法大致有:使用激光形成,等离子形成和光刻形成等三种。它们各有各的利弊,各公司目前正在进行这些技术的融合。其中最为引入注目的方法就是,采用附树脂的铜箔形成微导通孔。微导通孔工艺用附树脂铜箔是     

N_2和O_2纯转动拉曼光谱(PRRS)的温度特性

计算了N2 和O2 的PRRS ,讨论了其温度特性。提出通过测量N2 和O2 的PRRS计算大气温度的方法。