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上海大学学报（自然科学版） 2004年第2期10卷 139-142页

作者：孙永丽刘涛上海冶金设计研究院上海200070 上海大学土木工程系上海200072

某炼钢厂平炉改转炉工程,转炉基础落在原有平台柱基础、厂房柱基础、平炉设备基础、深水井等老基础上.该文对该场地条件下的几种地基处理方案进行了比较,最终选择了混凝土挤密桩这一最佳方案.从地基加固、挤密桩设计和构造要求等方面对... 详细信息

某炼钢厂平炉改转炉工程,转炉基础落在原有平台柱基础、厂房柱基础、平炉设备基础、深水井等老基础上.该文对该场地条件下的几种地基处理方案进行了比较,最终选择了混凝土挤密桩这一最佳方案.从地基加固、挤密桩设计和构造要求等方面对该方案进行了论证,并应用试验对地基处理结果进行了验证.说明了这种场地条件下,采用混凝土挤密桩是经济、实用、合理的.

关键词：地基处理混凝土挤密桩地基加固复合地基

THE　DIFFERENTIAL　DYNAMIC　MODEL　OF　ENTERPRISE　ECONOMIC　DEVELOPMENTANDITSCOMPUTATIONALMETHODS

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Journal of Central South university 1994年第1期6卷 87-90页

作者： Xuli Han (1) Songren Li (2. 1. department of Applied Mathematics and Applied Software Central South University of Technology 410083 Changsha China2. Department of Mineral Engineering China

in this paper, taking enterprise vitality as a target, an evaluation method of the economic development state of enterprise is proposed by using differential model. The solution of the differential model is discussed. The direct fitting methods and operational formulas for the parameters in the differenticl model are given. The feasible conditions of the methods are shown. It is an advantage that the methods have gotten rid of discretization error in contrast with the methods of grey theory.

关键词： fitting mathematical model differential equation

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英汉TBMT中模板抽取的改进算法及应用

计算机工程与应用 2002年第6期38卷 101-103页

作者：杨思春程节华陈家骏王启祥安徽工业大学(东区)计算机科学与技术系马鞍山243032 南京大学计算机科学与技术系南京210093

基于模板的机器翻译(简称TBMT)是为了提高当前机器翻译系统译文生成质量而采用的一种新的翻译方法,该技术的关键是模板的抽取。文章针对英汉机器翻译中的现存问题,在“动词+虚词”形式的模板抽取算法的基础上提出一种改进算法,应用该算... 详细信息

基于模板的机器翻译(简称TBMT)是为了提高当前机器翻译系统译文生成质量而采用的一种新的翻译方法,该技术的关键是模板的抽取。文章针对英汉机器翻译中的现存问题,在“动词+虚词”形式的模板抽取算法的基础上提出一种改进算法,应用该算法可较好地解决英汉机器翻译中的一些歧义问题。

关键词：英汉机器翻译模板槽模板抽取改进算法计算机

ANALYSIS AND MEASUREMENT OF STOKES LAYER FLOWS IN AN OSCILLATING NARROW CHANNEL

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Journal of Hydrodynamics 2008年第6期20卷 770-775页

作者： PENG Xiao-xing HSU C. T. China Ship Scientific Research Center Wuxi 214082 China department of Mechanical engineering The Hong Kong University of Science and Technology Hong Kong China

The velocities of boundary layer flows between two parallel oscillating plates separated by small distance, i.e., in so called narrow channel, were theoretically and experimentally studied. The focus was on the laminar case where the Reynolds number ReA is much smaller than the transition value. The theoretical analysis of the Stokes layer in oscillating flow over a narrow channel was made first. Then Laser Doppler Velocimeter （LDV） was employed to measure the Stokes boundary layer above an oscillating flat plate and inside the oscillating narrow channel at various ReH numbers. At the same time, the phase angle difference along the vertical direction in both analysis and experiment were provided. The good agreements are shown between the measured results and the theoretical solution.

关键词： oscillation flow Stokes layer Laser Doppler Velocimeter (LDV) narrow channel

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硫酸锰铵结晶水的测定及热分析

武汉大学学报（理学版） 2003年第6期49卷 685-688页

作者：宋力胡付欣李苹张克立信阳师范学院化学化工学院河南信阳464000 武汉大学化学与分子科学学院湖北武汉430072

合成了复盐硫酸锰铵,利用热重分析法(TG)、差示扫描量热法(DSC)、微商热重法(DTG)研究了它在氮气气氛中的热分解过程,确定了其结晶水的数目为7个,并通过Kay West方法确定了化合物热分解反应的活化能(E)、反应级数(n)和频率因子(A)等动... 详细信息

合成了复盐硫酸锰铵,利用热重分析法(TG)、差示扫描量热法(DSC)、微商热重法(DTG)研究了它在氮气气氛中的热分解过程,确定了其结晶水的数目为7个,并通过Kay West方法确定了化合物热分解反应的活化能(E)、反应级数(n)和频率因子(A)等动力学参数,用线性拟合的方法得到其相关系数均大于0.99,具有良好的动力学一致性,并运用等转化率法对热分析动力学参数进行了验证.

关键词：硫酸锰铵结晶水热分析动力学参数测定热重分析法差示扫描量热法微商热重法

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基于角色的集群应用系统

计算机工程与应用 2003年第13期39卷 132-134页

作者：朱鲁华施军费斐尤晋元江南计算技术研究所江苏无锡214083 上海交通大学计算机科学与工程系上海200030

提出了基于角色的集群结构这一概念,将集群的内部划分为逻辑上的代理子集群、静态存储子集群、动态存储子集群和管理子集群,讨论了这种集群结构的应用优势,并描述了一个集群邮件系统的设计与实现。

关键词：集群角色邮件系统目录服务负载平衡

TRENDS OF MECHANICALLY DITHERED SYSTEM OF RLG

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Chinese Journal of Mechanical engineering 2001年第2期14卷 160-165页

作者： Wang Kedong Gu Qitai department of Precision Instruments and Mechanology,Qinghua university 清华大学精密仪器与机器学系北京

As mechanical dither is widely applied to reduce frequency “Lock in” of RLG(ring laser gyroscope) that is based on the principle proposed by Sagnac in 1913, it is necessary to know the recent development it the field The proper design of dither mechanism that decides the effect of bias to some extent is discussed The proper dither signal and its control have a direct influence on dither efficiency Real,stable and accurate error compensation can improve the performance of RLG further Some proposals, which are helpful to future research on the field,are concluded

关键词： RLG Dither Gyroscope Navigation Error compensation

TRAFFIC INFORMATION COLLECTION BASED ON CELL PHONE POSITIONING

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Capacity Comparison of UWB System Based on Combined Cosinusoid Gaussian Pulse

第一届交通运输工程国际学术会议

作者： PU Shilin1 SHI Qixin2.1Institute of transportation engineering Tsinghua university Master candidate 2.nstitute of transportation engineering Tsinghua university Professor

Accurate and reliable real-time traffic information is the foundation of Intelligent Transportation Systems. Cell phone positioning technique provides a new method for traffic information collection with the rapid expansion of cell phone subscriber group. In this paper, we did theoretical analysis and simulation study on the application of this method, indicating three crucial issues which are location, accuracy, sample size, and data filtering. We analyzed these three issues respectively and advanced proposals of their solution. According to the theoretical analysis and simulation study, we get the conclusion that there are still lots of problems about the application of this new technique to traffic information collection, especially the low location accuracy of cell phones, which restrains this new application significantly.

关键词： cell phone location traffic information collection.

来源： cnki会议评论

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Capacity Comparison of UWB System Based on Combined Cosinuso...