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.     

Teachers’ Perceptions of Teacher–Child Relationships: Links With Children’s Observed Interactions

Research Findings: The present study examined associations between children’s classroom interactions and teachers’ perceptions of teacher–child relationships during 1 year of preschool. Teachers (n = 223) reported their perceptions of closeness and conflict in their teacher–child relationships in the fall and spring. Children’s (n = 895) positive classroom interactions with teachers, peers, and learning activities and their negative interactions were observed midyear. Children’s positive interactions with teachers and learning activities predicted teachers’ perceptions of more closeness in the spring when we accounted for fall closeness. Children’s negative interactions predicted teachers’ perceptions of more relational conflict in the spring when we accounted for fall conflict. Children’s positive peer interactions did not predict spring closeness or conflict. Implications regarding teachers’ perceptions of teacher–child relationships and children’s independently observed classroom interactions are discussed. Practice or Policy: Findings provide empirical evidence for an aspect of Pianta, Hamre, and Stuhlman’s (2003) conceptual model of teacher–child relationships. Results indicate that children’s classroom interactions may be a factor related to how teachers report on their relationships with children across 1 year of preschool. Findings point to links between a range of children’s positive and negative interactions during typical instruction and teachers’ relationship perceptions.     

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”。     

女书作品的诗学价值

现传的用女书写作的学性作品有600多篇。其中“唱本”和“贺三朝书”等民间礼仪性本用诗体形式，直接在人与人之间用以交际的书信等也都是诗体，女书作品为什么基本上都是诗体形式?女书作品诗体形式在内容上和形式上有什么特点?女书作品有没有所谓的诗学价值?这一系列的问题都需要深入探讨。     

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.     

Parental training and involvement in sexuality education for students who are deaf

The study examined whether schools for the deaf were providing services to assist parents in communicating with their children about sexuality (including sexual signs) and whether parents were involved in the sexuality education curriculum within their child's school. The Sexuality Curriculum Questionnaire for Educators of Students Who Are Deaf (Getch & Gabriel, 1998) was completed by 71 educators teaching sexuality curricula in schools for the deaf across the United States. Results indicated that parents were more likely to be involved in approval and development of their children's sexuality education than to receive assistance with sexuality education from the schools. Although the level of parental participation in curriculum development and approval is encouraging, the number of parents actually participating in curriculum development and approval remains low.     

基于整体论思想构建立体化现代工程中心

我国高等工程教育迅速发展要求以"大工程观"为指导开展工程实践教育。阐述了基于整体论思想建构立体化现代工程中心的观点,阐明了"现代工程中心"建设的实际架构及运行机制,分析了其环境支持因素。     

四会—吴川断裂带新构造时期的活动特征

对粤西NE向的四会—吴川断裂带新构造时期的活动特征进行了讨论。该断裂带在晚第三纪—早更新世主要表现为控制断裂带内及其两侧的断块差异升降;中更新世为第四纪活动高峰期(断层物质年龄集中于49～30万年),并以压剪性、蠕滑为主要特征;晚更新世早期部分NE向主干断裂和NW向断裂仍有活动,且NE向断裂主要呈张剪性,NW向断裂主要呈压剪性。据河流阶地剖面资料,该断裂带在Q_2—Q_3主要活动期中的差异运动速率<0.013cm/a。晚更新世晚期以来,近地表或地表活动趋于微弱,但对地震、温泉的分布仍起一定的控制作用。在新构造时期、该断裂带不同地段构造活动的强度、方式、性质均有差异,表现出空间上的分段性。