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柯西《分析教程》中的无穷小 被引量:1
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作者 杨宝珊 《西北大学学报(自然科学版)》 CAS CSCD 北大核心 2004年第1期121-124,共4页
目的 考查和分析Cauchy《分析教程》中有关无穷小的若干问题。方法 运用历史分析的方法,采用非标准分析的观点对原始文献进行研究。结果 推广了非标准分析的奠基者AbrahamRobinson关于Cauchy的某些历史评论。结论 如果允许考虑实无... 目的 考查和分析Cauchy《分析教程》中有关无穷小的若干问题。方法 运用历史分析的方法,采用非标准分析的观点对原始文献进行研究。结果 推广了非标准分析的奠基者AbrahamRobinson关于Cauchy的某些历史评论。结论 如果允许考虑实无穷小和无穷整数,那么,传统认为的Cauchy在连续性上所犯的某些失误就可以得到解释。另外,Cauchy对无穷小的态度影响了他对完备性的立场。 展开更多
关键词 柯西 《分析教程》 无穷小 非标准分析
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Thorough liberation: A feminist analysis of How lfinally lost my heart 被引量:1
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作者 KANG Shun-li 《Sino-US English Teaching》 2008年第4期68-71,共4页
How lfinally lost my heart is a short story written by Doris Lessing, the winner of the 2007 Nobel Prize in Literature. This paper is intended to analyze this short story from the feminist perspective, and show the ex... How lfinally lost my heart is a short story written by Doris Lessing, the winner of the 2007 Nobel Prize in Literature. This paper is intended to analyze this short story from the feminist perspective, and show the exact process of women's emotional independence as well as the writer's concern on women's thorough liberation. 展开更多
关键词 How l finally lost my heart feminism PATRIARCHY LIBERATION
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Teaching method for reading views by analyzing lines and planes
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作者 张庆伟 《Journal of Chongqing University》 CAS 2006年第3期137-142,共6页
This paper deals with the teaching method in reading engineering drawing. It introduces the basic theory and fundamental ideas as well as the approach of reading views by analyzing lines and planes. It gives out the s... This paper deals with the teaching method in reading engineering drawing. It introduces the basic theory and fundamental ideas as well as the approach of reading views by analyzing lines and planes. It gives out the steps for completing the third view based on the other two views. As it is easy and quick for students to read and understand views by this method, it is welcome by students in teaching practice. 展开更多
关键词 projection rule reading view analyzing lines and planes: parallel PERPENDICULAR
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Error Correction Strategy Use in the Second Language Classroom: A Study of Junior High School English Teachers in Ghana 被引量:1
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作者 Charles Owu-Ewie 《Sino-US English Teaching》 2013年第7期503-516,共14页
Error correction, in recent times, is seen as one of the important teaching processes in L2 (second language) learning, because comprehensible inputs alone is insufficient for acquisition of language. However, few L... Error correction, in recent times, is seen as one of the important teaching processes in L2 (second language) learning, because comprehensible inputs alone is insufficient for acquisition of language. However, few L2 teachers know much about error analysis and how to correct errors in the L2 classroom. Error correction is a very complicated and a thorny issue in L2 teaching and learning. L2 teachers, therefore, need to be armed with ways in which errors can be treated to ensure maximum effect yet with less harm to learners. Identifying learners' errors is very important in L2 learning, but how to correct them to give the desired effect is equally important and very challenging to L2 teachers. It is therefore crucial to initiate a study in Ghana to find out how errors are corrected in the Ghanaian English language classroom. This case study used complete observation and semi-structured interview as data collection strategies to identify error correction strategies/types English teachers use in the Ghanaian JHS (Junior High School) classroom and how error correction/treatment can be improved to facilitate English language teaching and learning. The findings of the study showed that explicit error correction technique was the most commonly used followed by recast, elicitation, metalinguistic clues, clarification request, repetition, and cues. It was also found that the causes of the disparity in the use of the various error correction types were inadequate teacher preparation, incompetence in English language, limited knowledge in error correction, caliber of students, and insufficient teaching time. This study identified that the situation can be improved through effective teacher training, in-service training, learner involvement, and effective planning. 展开更多
关键词 error correction errors types L2 teaching error analysis foreign language teaching
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The Essence and Structure of Information Competency of an Interpreter in the System of Continuing Education
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作者 Aleksandra Grebenshchikova 《Sino-US English Teaching》 2012年第9期1466-1471,共6页
The paper highlights the problem of training of interpreters in the system of continuing education in Russia. The theoretical analysis of the essence and structure of the information competency of an interpreter in co... The paper highlights the problem of training of interpreters in the system of continuing education in Russia. The theoretical analysis of the essence and structure of the information competency of an interpreter in continuing education as subjects is proposed. The research techniques were document analysis, interviews, participant observation, work process analysis, and focus groups. This paper presents a brief overview of the information competency of an interpreter. The importance of the information competency in the structure of professional competency of an interpreter is acknowledged by the majority of modern experts. But there still exists the problem of determining the set of skills which present the information competency of an interpreter. This paper introduces the author's view on the problem of defining the essence and structure of the information competency of an interpreter. 展开更多
关键词 professional competency information competency of an interpreter STRUCTURE ICTs (informationcommunication technologies)
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The Use of Task-Based Activities to Improve Listening and Speaking Skills in EFL Context
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作者 Arif Sangoban Leyla Karakurt 《Sino-US English Teaching》 2016年第6期445-459,共15页
The aim of this study was to improve EFL learners' English listening and speaking skills at a State University in Turkey, School of Foreign Languages, Department of Basic English B1 and BI+ groups through task-based... The aim of this study was to improve EFL learners' English listening and speaking skills at a State University in Turkey, School of Foreign Languages, Department of Basic English B1 and BI+ groups through task-based activities. The participants were 56 in total, studying in the academic year of 2014-2015 Spring Fall. The instruments used for collecting data were 16 lesson plans and the speaking and listening quiz results as post-tests. The data were statistically analyzed by mean, max, and min values of the scores. Teaching process and the lesson plans were recorded by researcher then presented in essay form. After the implementation and the post-tests, the participants' opinions about the task were collected as an interview. The results of the study showed that B1 groups did not get significant results from listening test and get nearly significant scores from speaking test while the listening and speaking results of BI+ groups through task-based learning after the implementations were highly significant, which shows that their participation in the task-based activities in the classroom reflected the results positively. Also the students' opinions about task-based learning and teaching activities were respectively positive. As a result, it can be said that task-based activities play a significant role in improving listening and speaking skills in EFL settings. 展开更多
关键词 task-based language teaching LISTENING SPEAKING B 1 and B 1 levels and CEFR
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Neural Networks and the Study of Time Series: An Application in Engineering Education
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作者 Jose Tarcisio Franco de Camargo Estefano Vizconde Veraszto +1 位作者 Gilmar Barreto Sergio Ferreira do Amaral 《Journal of Mechanics Engineering and Automation》 2015年第3期153-160,共8页
Time series are an important object of study in sciences, engineering and business, especially in cases where it is expected to know, predict and optimize behaviors. In this context, we intend to show the feasibility ... Time series are an important object of study in sciences, engineering and business, especially in cases where it is expected to know, predict and optimize behaviors. In this context, we intend to show the feasibility of using artificial neural networks in the study of several time series in an engineering course, especially those that have no overt behavior or are not able to be modeled mathematically in a simple way and have direct application in the education of future engineers. 展开更多
关键词 Engineering education time series mathematical modeling.
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Introducing CFD and Wind Tunnel Testing in an Undergraduate Fluid Mechanics Course
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作者 Wael Mokhtar Shirley Fleischmann 《Journal of Energy and Power Engineering》 2015年第6期505-516,共12页
CFD (computational fluid dynamics) is following the trend of CAD and FEA (finite element analysis) to undergraduate education especially with recent advances in commercial codes. It will soon take its place as an ... CFD (computational fluid dynamics) is following the trend of CAD and FEA (finite element analysis) to undergraduate education especially with recent advances in commercial codes. It will soon take its place as an expected skill for new engineering graduates. CFD was added as a component to an experiment in a junior level fluid mechanics course. The objectives were to introduce CFD, as an analysis tool, to the students and to support the theoretical concepts of the course. The students were asked to complete an experimental two-dimensional study for a wing in a wind tunnel, to use CFD to simulate the flow, and to predict the aerodynamic lift using CFD as well as the experimentally obtained pressure distribution. In addition, they had to compare their results to published data for the studied wing. Details of the course, the wind tunnel test and the CFD simulations are presented. Samples from the students' work are used in the discussion. The lab activities were successfully completed by the students and the learning objectives were well addressed. One of the valuable outcomes from this lab was the opportunity for the students to integrate multiple fluid mechanics analysis tools and learn about the limits for each tool. CFD also enhanced the learning in the lab activities and increased students' interest in the subject. 展开更多
关键词 Undergraduate teaching computational fluid dynamics experimental fluid mechanics.
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一线串通的初等数学 被引量:7
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作者 张景中 彭翕成 《数学通报》 北大核心 2010年第2期1-5,共5页
今年8月,笔者主编的《走进教育数学》丛书由科学出版社出版,这算是“教育数学”所取得的一个阶段性成果.教育数学用一句话来概括,就是:改造数学使之更适合于教学和学习.这一提法最早出现在笔者1989年所写的《从数学教育到教育数... 今年8月,笔者主编的《走进教育数学》丛书由科学出版社出版,这算是“教育数学”所取得的一个阶段性成果.教育数学用一句话来概括,就是:改造数学使之更适合于教学和学习.这一提法最早出现在笔者1989年所写的《从数学教育到教育数学》中.其实,教育数学的活动早已有之,如欧几里得著《几何原本》,柯西写《分析教程》,都是教育数学的经典之作. 展开更多
关键词 初等数学 数学教育 科学出版社 《几何原本》 《分析教程》 欧几里得 柯西
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SITUATION ANALYSIS AND NEEDS ANALYSIS IN CHINESE EFL CONTEXT:A CASE OF A SENIOR HIGH SCHOOL IN SOUTH-WEST CHINA
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作者 李思红 《Chinese Journal of Applied Linguistics》 2007年第4期17-28,128,共13页
Situation analysis and needs analysis are important tasks at the planning stage of curriculum design in most educational contexts, because they provide a basis for setting goals and objectives. Nevertheless, in Chines... Situation analysis and needs analysis are important tasks at the planning stage of curriculum design in most educational contexts, because they provide a basis for setting goals and objectives. Nevertheless, in Chinese EFL contexts, it is not uncommon that goal setting is managed around language outcomes which are prescribed by the teacher or teaching institution, without making reference to learners' needs and the larger context within which instruction takes place. This paper presents a piece of practical work by conducting a situation analysis and needs analysis in a senior high school in South-west China. In providing the rationale as well as the logistics and the outcomes of conducting the situation analysis and needs analysis, the paper attempts to illustrate a practical way to take account of learner factor and situational factors at the curriculum planning stage in Chinese EFL contexts, especially in the underdeveloped area of China. 展开更多
关键词 situation analysis needs analysis curriculum design Chinese EFL contexts
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A DEA Model with an AHP Restraint Cone
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作者 Yuhua Wu Linwu Zhang 《Journal of Systems Science and Information》 2006年第4期749-758,共10页
A concept of AHP restraint cone is firstly introduced, and then a DEA model with an AHP restraint cone is imposesed. This model not only remains all the characteristics of the conventional DEA model, but also reflects... A concept of AHP restraint cone is firstly introduced, and then a DEA model with an AHP restraint cone is imposesed. This model not only remains all the characteristics of the conventional DEA model, but also reflects preference of the decision maker. Some relationships between DEA model and AHP method, on the condition that the judgement matrixes in AHP are completely consistent, is discussed in this paper. Finally, a case study is provided to evaluate 20 junior middle schools of a city in China. 展开更多
关键词 data envelopment analysis analytic hierarchy process evaluation for middle schools
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