• Transactions of the Korean hydrogen and new energy society
• /
• v.33 no.4
• /
• pp.318-329
• /
• 2022

This study analyzed keyword networks and Author's Affiliation networks of hydrogen-related papers published in Korea Citation Index (KCI) journals from 2016 to 2020. The study investigated co-occurrence patterns of institutions over time to examine collaboration trends of hydrogen scholars. The study also conducted frequency analysis of keyword networks to identify key topics and visualized keyword networks to explore topic trends. The result showed Collaborative research between institutions has not yet been extensively expanded. However, collaboration trends were much more pronounced with local universities. Keyword network analysis exhibited continuing diversification of topics in hydrogen research of Korea. In addition centrality analysis found hydrogen research mostly deals with multi-disciplinary and complex aspects like hydrogen production, transportation, and public policy.

• Proceedings of the IEEK Conference
• /
• 1999.06a
• /
• pp.1103-1106
• /
• 1999

Telegram is an indispensible information & telecommunication system to our daily life. VTS(Voice Telegram System) under intensive research is intended to enhance exchanging capability of information & telecommunication by adding voice media to existing telegram system. Overall configuration and necessary core technologies of the system were investigated for its development. Among those many technologies in need, the technology of compressing and recording data is most critical to the development of cheap hardware. This is so called vocoder algorithm and is the core technology of voice information system. So, here, vocoder algorithm now being studied will be introduced.

• Journal of the KSME
• /
• v.18 no.1
• /
• pp.1-7
• /
• 1978

유럽제국 뿐만이 아니라, 일,미등 모든 방문업체가 서독의 Hanova시에서 1977년 9월 20일에 열렸 던 구주제이회 국제공작기계전 출품작에 대한 열의가 대단했었다. 각사가, 자사의 출품예정인 제 품에 대하여 소개해줄 때에 비밀이지만 상대방이 연구자이기 때문에 특혜를 입힌다는 느낌이 시종들었다. 이것 역시 내 직업이 기술을 탐구하는 일이기 때문에 받게되는 신의 은총으로 생각 이 되며, 새삼 부담과 고마움을 느끼지 않을 수가 없었다. 결국 기술에 대한 빚을 지게 된 셈이되 어 버렸다. 아마도 생애를 통해 이 부채들을 청산이나 할 수 있을런지 모르겠다. 1976년 9월 미국 의 Chicagc에서 열린 국제공작기계전, 동년 11월에 열린 동경전, 1977년 8월에 서울에서 열린 국제 기계전, 그리고 이번 시찰견학을 통해 느낀 최근의 공작기계제조경향과 1978년 9월 6일에 예정된 사상 최대규모가 될 것이라는 Chicago국제공작기계전의 전망을 살펴보기로 한다.

• Journal of Preventive Medicine and Public Health
• /
• v.36 no.3
• /
• pp.213-222
• /
• 2003

Genomic epidemiology is defined as 'an evoking field of inquiring that uses the systematic application of epidemiologic methods are approaches in population-based studies of the impact of human genetic variation on health and disease (Khoury, 1998)'. Most human diseases are caused by the intricate interaction among environmental exposures and genetic susceptibility factors. Susceptibility genes involved in disease pathogenesis are categorized into two groups: high penetrance genes (i.e., BRAC1, RB, etc.) and lour penetranoe genes (i.e., GSTs, Cyps, XRCC1, ets.), and low penetrance susceptibility genes has the higher priority for epidemiological research due to high population attributable risk. In this paper, the summarized results of the association study between single nucleotide polymorphisms (SNPs) and breast cancer in Korea were introduced and the international trends of genomic epidemiology research were reviewed with an emphasis on internee-based case-control and cohort consortium.

• Korean Journal of Acupuncture
• /
• v.33 no.1
• /
• pp.1-11
• /
• 2016

Objectives : When we understand the characters of certain person or object, we try to follow each one's or its past up. Korean Journal of Acupuncture is one of the most significant journal in acupuncture study fields in Korea. To understand the trends of study in acupuncture study fields, I made a subject with Korean Journal of Acupuncture. Methods : I made an evaluation and classification for all 713 articles' headline from vol. 17(2000 year) to vol.32(2015 year). Results : 1. Experimental Reseach : There were major portion articles for pharmaco-acupuncture study out of studies for acupuncture, moxibustion, chiropratics, devices and so on. 2. Bibliographical Research and Basic Theory Research : There were major portion articles for medians and acu-point study out of studies for article review and text book itself. Also, there were major portion articles for meridian and acupuncture study out of studies for Qigong, pulse, anatomy and so on. 3. Clinical Research : There were major portion articles for acupuncture study out of studies for moxibustion, chiropratics, devices, complex treatments and so on. 4. Others : There were major portion articles for diagnosis and measurement devices out of acupuncture, laser, pulsing device and so on. Also, there were surveys for recognition of patients and medical services and evaluations for measuring diagnosis utility and those effects. Conclusions : With thise results, I hope that several researchers could consider scope and subject when they submit articles for Korean Journal of Acupuncture.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
• /
• v.24 no.12
• /
• pp.1018-1022
• /
• 2011

Nowadays, with improvement of economical income and life qualities, life pattern changes have been brought such as increasing of avocational activities. Consequently, following those life trends, utilization of car is getting increased. Thus, the perceptions of car have been changed from the only means of transport in the past to a 2nd residental space. that is why the car's endo environmental factors are getting so important. Air conditioner regulating air ventilization in vehicle's indoor automatically sets the right temperature based on the differences of indoor and outdoor's temperature with development of advanced functions to provide better environmental qualities in vehicle. However, even those advanced techniques for functional development are got so diverse though, the essential technique for preventing the growth of bateria and mold inside of the air conditioner are not even severals. Especially, evaporator one of the vehicle air conditioning equipments generates cooled air by vaporizing refrigerant in liquid state with the water as the adduct for this reactions. It has structural difficulties for water vaporation then cause the growth of germs. That's why this reseach was focused on the way of eliminating germs in the vehicle air conditioner efficiently. Direct air sterilizer by using UVC(Ultraviolet C) is manufactured and that performances are evaluated.

• Journal of Korean Library and Information Science Society
• /
• v.51 no.4
• /
• pp.59-81
• /
• 2020

The purpose of this study is to compare and analyze the trend of reading research in Korea's LIS Fields in the past 20 years, divided into the 2000s and 2010s, by establishing a keyword network. To achieve this purpose, keywords were extracted from 489 related articles in the four major journals in the LIS field sourced from the Korean Journal Citation Index (KCI) and then analyzed using NetMiner4. The results of the study were as follows: First, in the case of the 2000s, 'Public Library', 'Bibliotherapy', 'Reading Education', and 'School Library' showed high values of Frequency Analysis, Degree Centrality, and Betweenness Centrality. In the 2010s, 'Reading Education', 'School Library', 'Children', 'Adolescents', and 'Public Library' showed high values of the aforementioned measures. Second, in the 2000s, the establishment of library infrastructure for reading and reading education, the improvement of policies and systems, and reading research through the reading movement were actively conducted. In the 2010s, based on the work and research done in the 2000s, customized user reading studies and various detailed reading research were conducted. Third, to meet the demands of the times for the restoration of humanity with creativity and imagination in the Fourth Industrial Revolution, reading research and professional in-depth research should be conducted in various environments beyond public and school libraries and interdisciplinary research and active joint research between the field and academia are needed.

• Journal of the Korean Society of Costume
• /
• v.43
• /
• pp.203-224
• /
• 1999

As androgny presented by feminism still appear in contemporary fashion since mid 1980's feminism as a social phenomenon can be considered to habe influenced fashion history. This paper surveys the sex images of androgynous look that appeared in contemporary fashion into bisexual image and neutral images based on the feminist aspects of changes in contemporary fashion. As stated above bisexual images and neutral images of androgynous look shown in clothing are an attempt to reach one single integrated complete being by overacoming 'femininity' or 'masculinity' and combining the element of the two sexes. Consequently androgynous look creates new attraction by harmoniously coordinating characteristics of the two sexes instead of totally differentiating between masculinity and femininity that are represented in the form of clothing that has conceptual visual characteristics. Following are the conclusions of the reseach of this paper. First 'androgynous' as a feminist sex concept reflects the spirit of the times. Since the sex roles are divided and diversified and the concept of femininity is changing the concept of androgyny requiring both masculine and feminine characteristics in an essential sex concept for sucessful conduct of roles in a complex modern society. Second the integrated human image of androgynous look has led to a new culture with fashion trends that has been ahead of times by curing the functions of fashion to differentiate between men and women. Third androgynous look at the turn-of-the-centuy will not cease to exist but be a lasting fashion phenomenon while the sex concept presented by feminism has become the core to destrov the dichotomous fashion style of the 20th century. Fourth androgynous look is expressed in various manners in contemporary fashion since it shown how human beings accipt the adaptation method desperately required by the contemporary times. Androgynous look can be viewd as the desire for ultimate freedom that can be acquired by destroying the dichotomous sex concept and as the will to become a subject of the world as integrated human being. As we look into fashion culture creation of fashion is not the result of an accidental cause or an individual's work but the reflection of the spirit of the times. In this sense androgynous look introduced by a new sex concept to contemporary fashion has reflected the spirit of the times and led the cultural atmosphere and moreover it is an important fashion style that can characterize the contemporary times while lasting in the future.