要想瘦 吃韩食

最近的—项国际测试结果表明：食用韩国料理能帮助减少腹部脂肪,并进一步预防各种由腹部脂肪引起的成人疾病。韩国人习惯席地而坐享用美食,有人开玩笑地说,席地坐着吃只能吃到半饱,又是小碟子装盘,当然会瘦了。那就让我们来看看,韩国料理是怎么让你瘦下来的。     

Owl Shaped You

The Shang Dynasty(16th Century B.C.-11th Century B.C.)Height:20.5 cmBronzePreserved in Shanghai MuseumYou is a vessel to contain wine.This You is in the zoomorphic shape of two owls standing back to back.The cover is shaped as     

Influence of cooling rates on the precipitation behavior and microstructure of Nb-Ti microalloyed steel

Influence of different cooling rates on the microstructure and the precipitation behavior of Nb-Ti microalloyed steel was investigated by CSLM,OM,SEM and EDS. The results show that the precipitation process of carbonitrides can be in-situ observed by CSLM,and with the increase of the cooling rate,the distribution of precipitates changes from along the austenitic grain boundaries to within the grains. With the increase of the cooling rate,the proeutectoid ferritic film becomes smaller and smaller and then disappears,and the original austenitic grains become finer and finer. In order to obtain non-film like proeutectoid ferrites or non-chain like precipitates along the austenitic grain boundaries and finer austenitic grains,the cooling rate should be at least 5℃/s.     

Fold-Hopf bifurcation in a simplified four-neuron BAM (bidirectional associative memory) neural network with two delays

The bidirectional associative memory (BAM) neural network with four neurons and two delays is considered in the present paper.A linear stability analysis for the trivial equilibrium is firstly employed to provide a possible critical point at which a zero and a pair of pure imaginary eigenvalues occur in the corresponding characteristic equation.A fold-Hopf bifurcation is proved to happen at this critical point by the nonlinear analysis.The coupling strength and the delay are considered as bifurcation parame...     

下一代网络的新业务

本文介绍下一代网络（NGN）各个层面的新技术及基于下一代网络（NGN）的语音、数据、多媒体等多种新业务的发展。     

光纤电视系统

随着我国经济的发展,光纤(有线)电视系统也将在全国有一个大发展。本文将目前光纤电视技术的发展情况用深入浅出的文字作一综合叙述,其中包括光纤电视和目前无线电广播电视在质量上的比较、光纤电视系统及其布线结构。对光纤电视系统的两项重要技术:调制及多路复用,作了进一步探讨,提出了有关光纤电视系统将来在技术方面的可能发展。最后作者对我国发展光纤电视系统提出了一些看法。     

基于.NET框架的电信IP业务决策支持系统的设计

针对电信IP业务的特点和需要,设计了一个基于．NET框架的决策支持系统。该系统充分利用了Internet和Web技术,以ASP．NET作为Web应用程序模型,以ADO．NET作为数据存取技术基础,采用SQL(structured query language)server 2000作为数据库和数据仓库解决方案,并有效地嵌入了数据挖掘和人工智能技术。该系统可以为电信IP业务的决策提供快速、科学的参考和依据。     

谈谈电信运行企业的几个节电措施

阐述了电信运行企业行之有效的节电措施：（１）专用空调节能设定运行;（２）将相控整流器改造为开关电源;（３）试用电源变频器。这些设施使用得当,既能确保通信安全,又可大大减少企业电费支出,降低运行成本,这是电信运行企业追求的目标之一。     

阴极保护对低合金钢在海水中断裂行为的影响

本文系统地研究了AISI4340,HY100,WELTEN60,AISIA537和A131低合金钢在开路和阴极保护电位下海水中的应力腐蚀开裂(SCC)和腐蚀疲劳(CF)行为.试验结果表明,阴极保护可以使合金钢在海水中不发生SCC的界限强度降低;而对低合金钢在海水中CF裂纹扩展速率的影响则不是单一的,与其强度及SCC的行为密切相关.指出在海洋工程结构中,应尽可能把阴极保护电位控制在规定区域的上限,同时可把海洋平台用钢的强度提高200—300MPa     

造型材料表观热物性的测定

为精确地模拟铸件的凝固过程和进行铸造工艺的计算机辅助设计,采用浇注法对粘土砂和水玻璃砂的表观热物性进行了研究。实验表明,型砂的表观导热系数、表观导温系数及表观蓄热系数均随着原砂粒度的增大而增大,也随着粘结剂的含量(陶土或水玻璃)增加而增大,但达到一定程度后则趋于恒定。