Youssou N’Dour,Minister of Culture of Senegal

<正>During the Senegalese presidential election this February, world well-known singer Youssou N’Dour entered the race for the presidency, which attracted great ...     

基于Rough Set的高职教育教学质量评价

针对高职教育的特点和现状,建立了高职教育教学质量评价指标体系,并利用RoughSet强大的数据挖掘能力,对若干位教师的教学质量进行了评价。将该方法应用于教学质量评价,不但能科学有效的得出评价结论,而且有助于教学质量的可持续发展评价。     

南水北调中线工程水源区的经济发展对策剖析

针对南水北调中线工程水源区的现状和特色,本文提出了大力发展有机生态农业、加速走新型工业化道路、促进商贸旅游业发展、优化配置水资源四大对策,并逐项进行了较深入的剖析。     

基于网络的高校个性化教学研究

在信息化的今天,网垮越来越多应用到高校教学的方方面面。高校教学也逐步从封闭走向开放。文章以地理信息系统（GIS）专业英语教学（ESP）为例探讨高校教师在网络环境下如何构建新的教学模式,建立个性化自主学习模式。     

吊环十字支撑动作的力学和肌电研究

吊环十字支撑是高级体操运动员在比赛中不可缺少的静止用力动作。运用力学和肌电对此动作进行研究,探索出完成动作的必要条件,由此确定正确的训练方法和有效程度,为广大高级体操教练员与运动员在制定训练计划与实施中提出有价值的参考。     

中文期刊人机通用无号排序法

“中文期刊刊名汉语拼音首字母—全拼排序法”具有不需给号 ,排检方便 ,人机通用 ,检索速度快 ,简单易掌握等特点 ,可解决中文期刊刊名排序和相同类号中文期刊的排序问题 ,以及中文期刊计算机排序和手工排序的统一     

A 155 Mbps laser diode driver with automatic power and extinction ratio control

An integrated laser diode driver(LDD) driving an edge-emitting laser diode was designed and fabricated by 0.35 μm BiCMOS technology. This paper proposes a scheme which combines the automatic power control loop and temperature com-pensation for modulation current in order to maintain constant extinction ratio and average optical power. To implement tem-perature compensation for modulation current,a novel circuit which generates a PTAT current by using the injecting base current of a bipolar transistor in saturation region,and alternates the amplifier feedback loop(closed or not) to control the state of the current path is presented. Simulation results showed that programmed by choice of external resistors,the IC can provide modu-lation current from 5 mA to 85 mA with temperature compensation adjustments and independent bias current from 4 mA to 100 mA. Optical test results showed that clear eye-diagrams can be obtained at 155 Mbps,with the output optical power being nearly constant,and the variation of extinction ratio being lower than 0.7 dB.     

Study on hydrodynamic vibration in fluidic flowmeter

The characteristics of the fluidic flowmeter,which is a combination of impinged concave wall and bistable fluid amplifier,is investigated by experimental studies and numerical simulations. The numerical approaches are utilized to examine the time dependent flow field and pressure field inside the proposed flowmeter. The effect of varying structural parameters on flow characteristics of the proposed fluidic flowmeter is investigated by computational simulations for the optimization. Both the simulation and experimental results disclose that the hydrodynamic vibration,with the same intensity,frequency and 180° phase shift,occurs at axisymmetric points in the feedback channel of the fluidic flowmeter. Using the structural combination of impinged concave wall and bistable fluid amplifier and differential signal processing technique,a novel fluidic flowmeter with excellent immunity and improved sensibility is developed.     

不同功能文本中文化因素的翻译

文化因素在不同功能的文本中起不同作用。在翻译中应恰当地处理。文章提出“三移”方法,即在表情功能文本中把源语文本的文化因素基本移入译语文本中,谓之“移体”;在以信息功能为主的文本可舍其形而释其意,谓之“移意”;在具有呼唤语言功能的文体中可将源语文化因素作适当的归化处理,谓之“移趣”。     

F-P滤波器解调FBG传感器的数据处理方法研究

使用可调谐F-P滤波器解调FBG传感器的方案具有测量系统体积小、波长分辨力高等优点,是目前技术较为成熟、实用性较好的解调方案.为了进一步提高解调准确度和精确度,滤波器透射峰值的计算方法和滤波器特征曲线的数学模型被不断改进.本文对这些处理方法进行了介绍和分析.