• Journal of the Korean Society for information Management
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• v.20 no.2
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• pp.43-71
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• 2003

This thesis is the study of the relationship between school libraries and academic achievement. This thesis defines research areas between shool libraries and academic achivement, analyzes the representive related thesis, and then partly applies meta-analysis methodology. This thesis presents research sciences, research methodologies, statistical techniques, and research pursuit pertinent to Korea for the scientific research between school libraies and academic achievement. In the future, to develop school libraries in the long term, in-depth academic research must be developed. The focus of the research should include the MLS and Ph. D. thesis of 'education of information and library as a subject matter' field to analyze the realtionship between school libraries and academic achievement.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.24 no.2
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• pp.84-87
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• 2014

Separation/recovery of valuable metals such as zinc, nickel or tin from copper alloy dross has recently attracted from the viewpoints of environmental protection and resource recycling. In this study, preliminary investigation on separation of tin (Sn) from copper alloy dross using selective dissolution method was performed. The tin in the copper alloy dross did not dissolve in an aqueous nitric acid solution which could allow the concentration/separation of tin from the copper alloy dross. Precipitation of tin as $H_2SnO_3$ (meta stannic acid)occurred in the solution and transformed to tin dioxide ($SnO_2$) after drying process. The dried sample was heat-treated at low temperature and its crystal structure, surface morphology and chemical composition were investigated.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.12 no.3
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• pp.325-336
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• 2005

Purpose: This study was done to analyze the trends in excercise-related research in nursing and non nursing research studies published in Korea. Method: Two hundred and ten research studies published in Korea between January, 1990 and December, 2002 were analyzed according to the criteria of methological characteristics, pattern of excercise-related program, and measurement index of exercise effect. Results: There were twice many papers from nursing compared to other fields, and many experimental studies in nursing were done with more variety than in non nursing fields. Aspects of exercise pattern, such as excercise type. duration, and frequency, exercise-intervention pattern, and applying theory were especially included. When patterns of excercise therapy and index of exercise effect were analyzed, each researcher used their own unique excercise contents and intervention patterns(excercise time per week, exercise duration at each time period, excercise, intervention time, and etc). Conclusion: For the importance of exercise therapy to health improvement and the proper suggestion of exercise therapy on the basis of this research, meta-analysis of exercise effect are needed, and with this analysis, intervention patterns of exercise, development of standard exercise therapy, and identification of exercise effects are required.

• The Journal of Society for e-Business Studies
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• v.10 no.4
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• pp.19-33
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• 2005

In this study, we propose a methodology of mating it easy to integrate the heterogeneous and distributed information of e-Business environments with the semantic web components , knowledge representation, ontology and agents. It is based on a collaborative interoperable environment, which should be constructed by meta-modeling and employing agents , and the syntactic/semantic integration. We adopt OWL(Web Ontology Language) to specify ontology in a layered architecture for each agent to use, which is based on the IRDS (Information Resource Dictionary Standard) framework. And we give an illustrative example using the terms from PSL(Process Specification Language)-ontology. By defining, managing and sharing resources and business-processes on the proposed framework, it could be possible to get rid of the cause of redundancy and inconsistency.

• Journal of the Korean Recycled Construction Resources Institute
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• v.3 no.4
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• pp.374-381
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• 2015

This study is investigating the fire resistant finishing materials composed of fly ash and glass forming light weight aggregate has the high temperature thermal stability. High temperatures such as a fire, cementitious materials beget dehydration and micro crack of cement matrix. From the test result, developed fire resistant finishing materials showed good stability in high temperatures. These high temperature stability is caused by the ceramic binding and low thermal conductivity of glass forming light weight aggregate. Also, alkali activation reaction of fly ash and meta kaolin not showing the decomposition of calcium hydrates. Thus, this result indicates that it is possible to fire resistant finishing light weight mortars.

• Journal of The Korean Association For Science Education
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• v.12 no.2
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• pp.97-107
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• 1992

ln this study, we analyzed 5 science textbooks currently used for the 7th graders quantitatively by using the science textbook rating system of Collette and Chiappetta(1986), making meta-analysis of the results of 17 graduate school students of Seoul National University. The rating system consists of 11 categories with detailed items respectively : content, organization, reading level, instruction approach, illustrations, end-chapter teaching aids, laboratory activities in text and/or accompanying manual, teacher aids, indices and glossaries and mechanical makeup of text. Each item in the checklist is to be given between one and five points and the total number of possible points in this rating system is 290. It was shown that 5 science textbooks currently used for 7th-year-students were all "poor" in terms of total points and had, at large, uniformed results especially in 10 items; 7 items concerning moral and ethical implications of science, vocabulary lists, accompanying laboratory manual, annotated editions for test, supply list for laboratory program, student workbook and glossary with low points, while 3 items concerning facilities needed for laboratory activities, activities relevant to the content and textbook size with high points. A Science teachers could get a broad view with a correct impression of the books usefulness in making an evaluation of available textbooks.

• Korean Journal of Occupational Health Nursing
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• v.13 no.1
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• pp.40-47
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• 2004

Purpose: To understand the recent trend of studies for nursing job stress, we collected Korean articles about job stress of clinical nurses. Method: Seventy two articles were selected from the database of "richis", Korean journals of related academic society, and dissertation papers, which are presented from 1981 to 2002. Result: The trend shows that the number of researches for the job stress of clinical nurses are increasing from the year of 1996. Most of the researches are for dissertation papers (75.0%), have done surveys (90.3%), and used questionnaires (94.4%). The nurses who were studied have their jobs in general wards of hospitals (50.6%). And 36.1% of the researches used the tool of Kim and Gu (1984) to measure job stress. These researches focused mainly on job satisfaction, burnout and coping successively. Conclusion: As only 6 out of 72 researches examined in this study have experimental design (8.3%), it can be said that more experimental studies are needed in this area. And we might also consider to use meta-analytic techniques for further studies, because these researches have used very similar tools for the same subject.

• Geotechnical Engineering
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• v.10 no.3
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• pp.97-110
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• 1994

Interaction between an unlined tunnel may cause a serious stability both the tunnel and the overlying and unli Red tunnel interaction meta study on the three dimensional bets a three dimensional elasto plastic the program, a wide range of blur puter analysis such as stress distr menu and tunnel deformation were footing and unlined tunnel. The yes traces the ultimate bearing capacity only on the tunnel size and location revealed is that an unlined tunnel under a square footing is subjected to three dimensional stress pattern along the tunnel axis, and that the magnitudes of stresses in the foundation soil and around tunnel perimeter are considerably smaller when loaded with a square than with a strip footings and the difference varies with the location and the type of stress. It is also revealed that the footing failure mechanism varies with the degree of footing and tunnel interaction.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.33 no.2
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• pp.48-55
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• 2010

Reliability has been considered as a one of the major design measures in various industrial and military systems. The main objective is to suggest a mathematical programming model and a hybrid parallel genetic algorithm(HPGA) for the problem that determines the optimal component reliability to maximize the system reliability under cost constraint in this study. Reliability optimization problem has been known as a NP-hard problem and normally formulated as a mixed binary integer programming model. Component structure, reliability, and cost were computed by using HPGA and compared with the results of existing meta-heuristic such as Ant Colony Optimization(ACO), Simulated Annealing(SA), Tabu Search(TS) and Reoptimization Procedure. The global optimal solutions of each problem are obtained by using CPLEX 11.1. The results of suggested algorithm give the same or better solutions than existing algorithms, because the suggested algorithm could paratactically evolved by operating several sub-populations and improving solution through swap and 2-opt processes.

• Journal of Haehwa Medicine
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• v.16 no.2
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• pp.241-249
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• 2007

Objectives : The purpose of this study is to suggest better directions in researches about findging new drug derived from herbs in South Korea. Methods : We investiated some literatures on anti-breast cancer herbal extracts which is used in South Korea, and made diagrams. Results : The results are summarized as follows. Many herbs are used in treatment of breast cancer based on oriental medical records. After finding anti tumor effects of genistein in soy extracts in 1987, searching new substances that have anti-tumor effects in breast cancer is accelerated. In Korea, these trends of the research have been activated since 2000. But substance researches about breast cancer are much less than subatance researches about advanced gastric cancer, although the two cancers have similar incidence rate. And all of the researches that we found are in vitro experiments. Conclusions : From the results, it is expected that there are many anti-breast cancer herbal substances which are proved in vitro experiments. We need more studies in animals and human bodies.