• Title/Summary/Keyword: Synchronous Language

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The Importance of CCDL in English Education

  • Park, Kyung-Ja
    • English Language & Literature Teaching
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    • v.7 no.2
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    • pp.77-102
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    • 2002
  • Factors affecting foreign language learning task are diverse in nature due to the different social and cultural backgrounds so that learners have to somehow use strategies and expressions to adjust diverse factors to their learning environments. The main purpose of this paper is to show how important NNS vs. NNs interaction through CCDL can be in their enhancement of English proficiency by giving examples from their chatting conversation(written conversation) data collected for over two semesters. Chatting as a means of synchronous communication interaction between students from two different cultural backgrounds can act as a predictor of foreign language achievement. Chatting and Telemeet activities have their own advantages in enhancing communicative competence when learning English. By engaging in these synchronous communication activities learners of English from different cultural backgrounds can acquire unique strategies and expressions from which they learn from each other. In short, this study advocates the importance of strategies and patterns foreign language learners can acquire from interaction among culturally different peer groups.

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The Effectiveness of Language Learning Through Native English Teachers' Online Synchronous Class

  • Tan, Jialu;Tan, Shengyuan;Bae, Ki-Hyung
    • International Journal of Contents
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    • v.18 no.3
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    • pp.1-10
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    • 2022
  • The advancement of Internet technologies has provided a new and effective way to cultivate international talents. To investigate the effect of native English teachers' online synchronous classes on Chinese primary school students' oral English improvement, an 18-month quasi-experimental study was conducted on 300 primary school students in China. The experiment and control groups were provided biweekly synchronous online classes with native and non-native English teachers. SPSS was used to conduct Paired Sample T-Tests and analyze performance differentials. The results showed that online classes taught by native English teachers perform better than non-native English teachers in three areas: vocabulary accuracy, average sentence length, and phonological intonation.

Synchronous Generator Protection using Fault Currents (고장전류를 이용한 동기 발전기 보호)

  • Park, Cheol-Won;An, Jun-Yeong;Lee, Sang-Seong;Sin, Myeong-Cheol
    • Proceedings of the KIEE Conference
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    • 2006.11a
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    • pp.399-401
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    • 2006
  • This paper proposes a synchronous generator protection algorithm using Discrete Wavelet Transform for detection of fault currents. The proposed technique is implemented by using the C language and the Wavemenu of MATLAB Toolbox, and consists of normal state and internal fault state. The effectiveness of proposed method is demonstrated by MATLAB simulation package for synchronous generator, which collects the balanced and unbalanced fault currents through simulation.

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Implementation of Synchronous CMOS SRAM Compiler (Synchronous CMOS SRAM Compiler 의 구현)

  • 강세현;박인철
    • Proceedings of the IEEK Conference
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    • 2001.06b
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    • pp.381-384
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    • 2001
  • This paper describes the features and development of a RAM compiler that can generate low power, high speed, synchronous CMOS SRAM. The compiled SRAM can be configurable from 64bytes to 16Kbytes in one bank and has 2ns access time typically. Basic cells are developed using 2-poly, 4-metal 0.35um CMOS technology. This SRAM compiler is developed using SKIL $L^{TM}$ language and generates layout and schematic in Cadence environment.

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Reducing False Alarms in Schizophrenic Parallel Synchronizer Detection for Esterel (Esterel에서 동기장치 중복사용 문제 검출시 과잉 경보 줄이기)

  • Yun, Jeong-Han;Kim, Chul-Joo;Kim, Seong-Gun;Han, Tai-Sook
    • Journal of KIISE:Software and Applications
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    • v.37 no.8
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    • pp.647-652
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    • 2010
  • Esterel is an imperative synchronous language well-adapted to control-intensive systems. When an Esterel program is translated to a circuit, the synchronizer of a parallel statement may be executed more than once in a clock; the synchronizer is called schizophrenic. Existing compilers cure the problems of schizophrenic parallel synchronizers using logic duplications. This paper proposes the conditions under which a synchronizer causes no problem in circuits when it is executed more than once in a clock. In addition we design a detection algorithm based on those conditions. Our algorithm detects schizophrenic parallel synchronizers that have to be duplicated in Esterel source codes so that compilers can save the size of synthesized circuits

Efficient Construction of Over-approximated CFG on Esterel (Esterel에서 근사-제어 흐름그래프의 효율적인 생성)

  • Kim, Chul-Joo;Yun, Jeong-Han;Seo, Sun-Ae;Choe, Kwang-Moo;Han, Tai-Sook
    • Journal of KIISE:Computing Practices and Letters
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    • v.15 no.11
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    • pp.876-880
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    • 2009
  • A control flow graph(CFG) is an essential data structure for program analyses based on graph theory or control-/data- flow analyses. Esterel is an imperative synchronous language and its synchronous parallelism makes it difficult to construct a CFG of an Esterel program. In this work, we present a method to construct over-approximated CFGs for Esterel. Our method is very intuitive and generated CFGs include not only exposed paths but also invisible ones. Though the CFGs may contain some inexecutable paths due to complex combinations of parallelism and exception handling, they are very useful for other program analyses.

Design Strategies for Web-Based Self-Directed Cooperative Language Learning Communities (상호자율언어학습을 위한 웹기반 학습공동체의 설계전략 연구)

  • Park, Jung-Hwan;Lee, Kun-In;Zhao, Hai-Lan
    • English Language & Literature Teaching
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    • v.10 no.1
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    • pp.127-152
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    • 2004
  • The purpose of this study is to elaborate design strategies for a Web-based self-directed cooperative distance language learning community. Research was done regarding the theoretical foundations for self-directed cooperative language learning and Web-based learning communities. The components of a Web-based community for self-directed cooperative language learning system are also investigated. As a result of this study, design strategies for Web-based communities are suggested. There are performance and supporting environments(synchronous/asynchronous) for self- directed cooperative language learning. There are also cultural experiences and communication factors in the performance field. Furthermore, matching communicators, finding and offering information, language learning content and other supporting agents are important in the supporting environment.

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A Collaborative Visual Language

  • Kim, Kyung-Deok
    • Journal of information and communication convergence engineering
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    • v.1 no.2
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    • pp.74-81
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    • 2003
  • There are many researches on visual languages, but the most of them are difficult to support various collaborative interactions on a distributed multimedia environment. So, this paper suggests a collaborative visual language for interaction between multi-users. The visual language can describe a conceptual model for collaborative interactions between multi-users. Using the visual language, generated visual sentences consist of object icons and interaction operators. An object icon represents a user who is responsible for a collaborative activity, has dynamic attributes of a user, and supports flexible interaction between multi-users. An interaction operator represents an interactive relation between multi-users and supports various collaborative interactions. Merits of the visual language are as follows: supporting of both asynchronous interaction and synchronous interaction, supporting flexible interaction between multi-users according to participation or leave of users, supporting a user oriented modeling, etc. For example, an application to a workflow system for document approval is illustrated. So we could be found that the visual language shows a collaborative interaction.

A Design of the Active Web Server Supporting Synchronous Collaboration in the Web-Based Group Collaboration Systems (웹 기반 그룹 협동 시스템에서 동기화된 협동을 지원하기 위한 능동형 웹 서버 설계)

  • 허순영;배경일
    • Proceedings of the Korea Database Society Conference
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    • 1999.06a
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    • pp.95-102
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    • 1999
  • The web-based group collaborative systems are emerging as enterprise-wide information systems. Since data in group collaborative systems are apt to be shared among multiple concurrent users and modified simutaneously by them, the web-based group collaborative systems must support synchronous collaboration in order to provide users with synchronized and consistent views of shared data. This Paper proposes an active web server which can facilitate synchronous collaboration in web-based group collaborative systems. To accomplish such a goal, the active web server manages dependency relationships between shared data and web browsers referencing them and actively propagates changing details of the shared data to all web browsers referencing them. And, this paper examines usefullness and effectiveness of the active web server to apply it to the ball-bearing design example of concurrent engineering design systems. The prototype system of the active web server is developed on a commercial Object-oriented Database Management System (ODBMS) called OBJECTSTORE using the C++ programming language.

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A Design of the Active Web Server Supporting Synchronous Collaboration in the Web-Based Group Collaboration Systems (웹 기반 그룹 협동 시스템에서 동기화된 협동을 지원하기 위한 능동형 웹 서버 설계)

  • 허순영;배경일
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 1999.03a
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    • pp.95-102
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    • 1999
  • The web-based group collaborative systems are emerging as enterprise-wide information systems. Since data in group collaborative systems are apt to be shared among multiple concurrent users and modified simutaneously by them, the web-based group collaborative systems must support synchronous collaboration in order to provide users with synchronized and consistent views of shared data. This paper proposes an active web server which can facilitate synchronous collaboration in web-based group collaborative systems. To accomplish such a goal, the active web server manages dependency relationships between shared data and web browsers referencing them and actively propagates changing details of the shared data to all web browsers referencing them. And, this paper examines usefullness and effectiveness of the active web server to apply it to the ball-bearing design example of concurrent engineering design systems. The prototype system of the active web server is developed on a commercial Object-oriented Database Management System (ODBMS) called OBJECTSTORE using the C++ programming language.

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