• Journal of KIISE:Information Networking
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• v.28 no.4
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• pp.631-640
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• 2001

Round robin scheduling discipline, which is a sort of frame-based scheduling, is quite simple and straightforward for handling multiple queues, and by putting a different weight on each queue, a network can offer differentiated services such as different bandwidth, or delay bound. The most typical algorithm among this disciplines is the weighted round robin(WRR). Also, WRR algorithm can be implemented efficiently by dynamic binary scheduling wheel(DBSW) architecture. This paper performs the analysis of the DBSW architecture and compares the results with simulation results. The analysis data and simulation data show that the DBSW structure decreases average buffer length because it is capable of maintaining the allocated weight of each VC correctly.

• International Journal of Contents
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• v.15 no.2
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• pp.44-52
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• 2019

This paper uses Delphi Method and statistics provided by the State Administration of Market Regulation of China, attempts to develop the scale index of language service industry in China. Coupled with practical investigation and theoretical framework of SCP paradigm, a deep analysis on market behavior, market structure, and market performance of the industry have been explored. First, the study indicates that the scale index of Chinese language services industry has experienced an upward trend from 10.481million RMB in 2008 to 351.403 million RMB in 2017. Second, majority of language services enterprises are situated in Chinese coastal provinces and there are variations in demand for language services. Third, the standardization of language services are minimal while most of the talents involve a single discipline background. Fourth, most enterprises utilize language tools while there is lack of technological innovation for utilization of language resources and enhancement of service quality. The author mainly suggests four strategies which include: cultivating multilingual services, strengthening the development of industrial informatization and technical innovation, and optimizing the industrial talents structure while also adjusting for industrial distribution and regional coordination, which propose the meaningful implications for the development of language service industry in China.

• Journal of Educational Research in Mathematics
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• v.12 no.3
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• pp.409-424
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• 2002

The historico-genetic principle has been advocated continuously, as an alternative one to the traditional deductive method of teaching and learning mathematics, by Clairaut, Cajori, Smith, Klein, Poincar$\'{e}$, La Cour, Branford, Toeplitz, etc. since 18C. And recently we could find various studies in relation to the historico-genetic principle. Lakatos', Freudenthal's, and Brousseau's are representative in them. But they are different from the previous historico- genetic principle in many aspects. In this study, the previous historico- genetic principle is called as classical historico- genetic principle and the other one as modern historico-genetic principle. This study shows that the differences between them arise from the historical views of mathematics and the development of the theories of mathematics education. Dewey thinks that education is a constant reconstruction of experience. This study shows the historico-genetic principle could us embody the Dewey's psycological method. Bruner's discipline-centered curriculum based on Piaget's genetic epistemology insists on teaching mathematics in the reverse order of historical genesis. This study shows the real understaning the structure of knowledge could not neglect the connection with histogenesis of them. This study shows the historico-genetic principle could help us realize Bruner's point of view on the teaching of the structure of mathematical knowledge. In this study, on the basis of the examination of the development of the historico-genetic principle, we try to stipulate the principle more clearly, and we also try to present teaching unit for the logarithm according to the historico- genetic principle.

• International Journal of Computer Science & Network Security
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• v.21 no.2
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• pp.44-53
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• 2021

The paper proposes to consider information technologies and their application in the educational process as a preparation of presentation material for students of higher educational institutions. The definition and place of information technologies in the educational space are considered. The object of research of this work is the pedagogical technology of presentation of educational information, which substantiates the pedagogical technology of visualization of educational information in higher education, as well as determine its composition and structure. The practical side of pedagogical technology of educational information presentation is considered.

• International Journal of Knowledge Content Development & Technology
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• v.7 no.2
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• pp.85-105
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• 2017

Given the variety of approaches to mapping the universe of knowledge that have been presented and discussed in the literature, the purpose of this paper is to systematize their main principles and their applications in the major general modern library classification schemes. We conducted an analysis of the literature on classification and the main classification systems, namely Dewey/Universal Decimal Classification, Cutter's Expansive Classification, Subject Classification of J.D. Brown, Colon Classification, Library of Congress Classification, Bibliographic Classification, Rider's International Classification, Bibliothecal Bibliographic Klassification (BBK), and Broad System of Ordering (BSO). We conclude that the arrangement of the main classes can be done following four principles that are not mutually exclusive: ideological principle, social purpose principle, scientific order, and division by discipline. The paper provides examples and analysis of each system. We also conclude that as knowledge is ever-changing, classifications also change and present a different structure of knowledge depending upon the society and time of their design.

• Journal of the Korean Society for Library and Information Science
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• v.14
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• pp.19-65
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• 1987

Library classification schedule IS based on the classification theory, principle and the system of the classification of science. It should be consisted of the basic principle of library classification which should use the library materials effectively. Continuous study and research on the each subject field of the discipline are essential for keeping up with the transformation of each learning field and the change of modern society. In this paper, I studied comparatively the sections and subsections of the management in KDC, DDC and NDC and reviewed the academic systems of each subject area in the management. I tried to compare the relationship beween the structure of library classifications and academic systems for the more specialized subsections of the management. KDC is influenced by the principle and structure of DDC, but I found that KDC is more similar to NDC than DDC in the sections and subsections of the management. Being un sufficient of subsections of KDC and NDC, they are not enough for the expansion and specialization of the subsections in the management. DDC is necessary to re-schedule for the proper expansion of 650 and 658 with reflection of the importance of that sections and academic systems. In this study, I adoped 9 sections of management, (1) Management policy (2) Administrative organization (3) Personnel (4) Office management and business information management (5) Marketing (6) Financial management (7) Production management (8) Accounting (9) International management. It would be necessary for us to study continuously about the specilized subsubsections of the management for the more professional classification.

• Structural Engineering and Mechanics
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• v.56 no.2
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• pp.257-273
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• 2015

Numerical value of correlation between effective parameters in the strength of a structure is as important as its stochastic properties in determining the safety of the structure. In this article investigation is made about the variation of coefficient of correlation between effective parameters in corrosion initiation time of reinforcement and the time of concrete cover cracking in reinforced concrete (RC) structures. Presence of many parameters and also error in measurement of these parameters results in uncertainty in determination of corrosion initiation and the time to crack initiation. In this paper, assuming diffusion process as chloride ingress mechanism in RC structures and considering random properties of effective parameters in this model, correlation between input parameters and predicted time to corrosion is calculated using the Monte Carlo (MC) random sampling. Results show the linear correlation between corrosion initiation time and effective input parameters increases with increasing uncertainty in the input parameters. Diffusion coefficient, concrete cover, surface chloride concentration and threshold chloride concentration have the highest correlation coefficient respectively. Also the uncertainty in the concrete cover has the greatest impact on the coefficient of correlation of corrosion initiation time and the time of crack initiation due to the corrosion phenomenon.

• Journal of the Korean Society for information Management
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• v.28 no.2
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• pp.11-36
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• 2011

Since the 1990s, informetrics has grown in popularity among information scientists. Today it is a general discipline that comprises all kinds of metrics, including bibliometrics and scientometrics. To illustrate the dynamic progress of this field, this study aims to identify the structure and infrastructure of the informetrics literature using statistical and profiling methods. Informetrics literature was obtained from the Web of Knowledge for the years 2001-2010. The selected articles contain least one of these keywords: informetrics', bibliometrics', scientometrics', webometrics', and citation analysis.' Noteworthy publication patterns of major countries were identified by a statistical method. Intellectual structure analysis shows major research areas, authors, and journals.

• Journal of the Korean Geographical Society
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• v.30 no.2
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• pp.188-199
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• 1995

This International Geographical Symposium is to comemorate the 50th anniversary of the Korean Geographical Society. The Korean Geographical Society (KGS) which is the headquater of the geogaphical study will be play a main role to promote International Geographical Conference(IGC). And KGS hopes to prepare for the success of IGC and to examine the ability of the Korean Geographical Society for holding IGC in Seoul, in 2000. Above all, we expect to confirm what vision of the spatial structure our geographers have had for the last 50 years and in the position of the Korean Geographical Society, we present various studies on the spatial structure of the Unified Korea and through the discussion of the members we are going to lead our common interest to the key of reunification and motivate this studies more actively. We think that German geographers who have been studying the establishment of the spatial structure before and after the reunification of Germany will help in setting spatial structure of reunified Korea. In the second part of seminar, we will have a lecture on "Geography in the 21st Century; its Perspectives and Contribution". This lecture will prepose the trends of international geographical study and discipline, to Korean geographers and encourage them to realize what position we are in on the level of international geography and intensify their study. In the end of twentieth centuries, Korean geographers, who accessto postmodernism, hope to develope the unique subject matter and discipline regrardless of the 50 year-partition of the Korean Peninsula through the study of geobraphy. What can we suagest to geographers under the unique spatia1 structure of the divided peninsula\ulcorner How will our country develope in the future when DMZ, the last remains of cold war, vanishes and our reunified country becomes\ulcorner These subject matters will be issued in this International Geographic Conference. These issued subject matters and procedures of discussion will stimulate younger students to have interest in our unique geographic environment and to set up thier own method of study. In the third part of seminar, a special lecture on "Half-century of Korean Geography: It's Reflection and Perspective", the product and the subject of each part in geography will be discussed. Because this seminar is for the first time in 20 years after the 30th anniversary, the evaluation and the comment of each field in geography will be focused on because the achievement of each member's study is evaluted and refered to objectively. The newly developed field ewll be proposed, as well as the evaluation and the result of the Korean Geographical Society. The criticism and the proposal of the Korean Geographical Society will encourage the study of each member. And it will contribute to the development of the Korean Geographical Society. We hope all the issued papers to be published as atreatise and circulated to all members, university liberaries, each institution etc. There is no doubt our research and study will affect geographers and geography teachers to use this treatise. If possible, we will make public editions to distribute widely for students who study geography. It will help students to study geography encouragingly and to understand a correct structure and to commit themselves to promote the developed industrial country when they are playing a leading part in society. And we will contribute this issue to all the institutes such as the congress, each department of government, the political parties, the economic circles and private institutes, in order to make them understand our academic efforts and activities. Besides, we hope this contribution will give them much understanding and interest about 2000 IGC in Seoul beforehand.in Seoul beforehand.

• Journal of Korean Home Economics Education Association
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• v.20 no.3
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• pp.65-84
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• 2008

Historically the value of the secondary Home Economics subject matter has been justified with the extrinsic aim to satisfy the needs of the individual and family and of the society. The purpose of this study is to investigate the educational and philosophical significance of the knowledge in Home Economics education through reasoning out its intrinsic aim. From the point of discipline-based curriculum, Home Economics as 'the structure of knowledge' constitutes the curriculum of the secondary Home Economics subject matter and contributes to understanding the family life intellectually with its unique perspective. When students understand these theoretical contents, they will internalize the core idea of Home Economics so that their cognitive perspective on family life is developed or widened. With this cognitive perspective, they are able to discover the aspect of family life from their daily life, to interpret and judge every situation properly. It is the presupposition of socially expected practical problem solving that makes Home Economics education intrinsically meaningful. In conclusion, the secondary Home Economics curriculum needs to be reinterpreted or reorganized as the structure of knowledge, not as fragmentary informations or facts, through which the broad cognitive perspective on family life is developed and Home Economist's mode of thinking is transmitted.