Analysis and synthesis of on-chip spiral inductors

This paper presents a physically based compact model for estimating high-frequency performance of spiral inductors. The model accurately accounts for skin and proximity effects in the metal conductors as well as eddy current losses in the substrate. The model shows excellent agreement with measured data mostly within 10% across a variety of inductor geometries and substrate dopings up to 20 GHz. A web-based spiral inductor synthesis and analysis tool COILS, which makes use of the compact models, is presented. An optimization algorithm using binary searches speeds up the synthesis of inductor designs.     

Ozonation of CI Reactive Black 5 using rotating packed bed and stirred tank reactor

This study investigates the ozonation of CI Reactive Black 5 (RB5) by using the rotating packed bed (RPB) and completely stirred tank reactor (CSTR) as ozone contactors. The RPB, which provides high gravitational force by adjusting the rotational speed, was employed as a novel ozone contactor. The same ozone dosage was separately introduced into either the RPB or the CSTR for the investigation, while the experimental solution was continuously circulated within the apparatus consisting of the RPB and CSTR. The decolorization and mineralization efficiencies of RB5 in the course of ozonation are compared for these two methods. Moreover, the dissolved and off‐gas ozone concentrations were simultaneously monitored for the further analysis. As a result, the ozone mass transfer rate per unit volume of the RPB was significantly higher because of its higher mass transfer coefficient and gas–liquid concentration driving force. Furthermore, ozonation kinetics was found to be independent of the gravitational magnitude of an ozone gas–liquid contactor. Therefore, the results suggest employing RPBs as ozone‐contacting devices with the advantage of volume reduction. The experimental results, which can be used for further modeling of the ozonation process in the RPB, also show the requirement of correct design for the RPB. Consequently, the present study is useful for the understanding of practical application of RPBs. Copyright © 2004 Society of Chemical Industry     

掺钛蓝宝石激光晶体中夹杂物的分析

本文用大视场光学显微镜、电子探针观察和分析了掺钛蓝宝石激光晶体中夹杂物的形状、尺寸大小及元素组成，并提出消除和减少这些夹杂物的方法．     

综述老油田改善开发效果及提高采收率技术

中国陆上老油田已进入高含水后期开发，随着开采程度加深，地下油水关系越来越复杂，剩余油分散，给油田稳产和调整挖潜带来的难度越来越大。但目前老油田储量和产量的比例，仍占陆上总开发储量和产量的７０％以上，是生产上的主力，其潜力也最大，仍然是今后调整挖潜的主要对象。鉴于中国陆上油田绝大多数为陆相储层，构造复杂，非均质严重，原油粘度偏高，石油地质特点决定了水驱油的不均匀性及剩余油分布的复杂性，潜力就存在于这种复杂之中。根据中国陆上石油地质特点和老油田开发现状，围绕改善开发效果及提高采收率着重阐述了四个方面的配套技术：即认识油藏的配套技术，主要包括油藏动态监测技术、油藏精细描述技术、油藏数值模拟技术；完善注水开发配套技术，主要包括注水结构调整、产液结构及含水结构调整、钻取高效调整井、改造“双低”单元、配套工艺技术等；热力采油配套技术；化学驱采油配套技术。经过多年来的努力，我国陆上油田提高采收率技术有了明显进步，针对不同类型油藏潜力分布特点，采用各种有效方法及其配套技术，为挖潜增储、增产提供了很大的余地。     

划分IC缺陷团的聚类算法

大量实验表明了在集成电路（IC）制造过程中形成中的缺陷团之间具有很强的相关性，然而现用于划分缺陷团的方法均忽略了缺陷之间的相关性。因此，得到了缺陷分布规律不能有效地反映缺陷在圆片上的分布，为了提高IC成品率和可靠性仿真和设计的精度，提高缺陷分布模型的准确性，该文提出了划分缺陷团的聚类算法，该方法依据缺陷形成的动力学基础，充分考虑了缺陷团之间的相关性，实验证明该算法用于划分IC的缺陷团是十分有效的。     

国外钻井液和完井液用聚合物

９０年代以来，国外钻井液和完井液用聚合物添加剂的发展取得长足进步。本文介绍了国外目前用于钻井液和完井液的聚合物添加剂的类型及作用。     

布里奇曼法生长碲镉汞晶体的缺陷及其展望

简单介绍了布里奇曼法生长碲镉汞晶体的主要缺陷以及缺陷的控制原理，回顾了国内进行磅镉汞晶体生长的布里奇曼法及加速坩埚旋转技术的布里奇曼法（ＡＣＲＴ－Ｂ）研究的情况，并提出了进一步研究的问题。     

某微型起爆器引起的一起误爆事故分析

该文分析某微型起爆器引起的一起误爆事故，指出该起爆器设计上的缺陷及其对作业安全的威胁，提出防患建议。     

布里奇曼法生长碲镉汞晶体的固液界面形态研究

文中综述了布里奇曼法及加速坩埚旋转技术的布里奇曼法生工碲镉汞晶体过程中固液界面形态的研究结果，简单讨论了固液界面形态对组分分布的影响，并将两种技术所得的组分分布结果进行了比较，在分析影响固液界面形态因素的基础上，认为加速坩埚旋转技术是目前改善固液界面形态的有效方法。     

Simulated hot working,cold working,

An investigation was carried out on the effects of changing the hot-working, cold-working, and annealing parameters on the interaction between A1N precipitation and recrystallization in low- carbon steels containing significant amounts of Al and N. The primary aim was to determine whether laboratory torsion testing can be helpful in analyzing precipitation behavior in these steels. The approach taken was first to establish the baseline annealing behavior of material that was hot- and cold-worked in a mill and then to compare this with the behavior of material in which the hot and cold working were simulated by torsion testing. It was found, first of all, that torsion testing can indeed provide a good simulation of the industrial process of hot and cold working followed by annealing, even to the extent that a process as subtle as the inhibition of recrystallization by A1N precipitation can be accurately reproduced. The results also show that the interaction between precipitation and recrystallization during annealing is significantly influenced by the reheat temperature before hot working, as well as by the cooling rate after hot working.