방사선지표식물 자주달개비를 이용한 환경방사선 감시

김진규,김원록,이영근,김재성,송희섭,정철영,김기남,서원선,홍광표 ( Jin Kyu Kim,Won Rok Kim,Young Keun Lee,Jae Sung Kim,Hi Sup Song,Cheorl Young Jeong,Ki Nam Kim,One Sun Suh,Kwang Phyo Hong ) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.2

Tradescantia in BNL 4430 is a hybrid clone heterozygous for its flower color and extremely sensitive to ionizing radiation. Such a fact made people around nuclear power plants be interested in Tradescantia, a botanical tester of radiation effects. The pur pose of this study is to provide the botanical supplement to physical radiation monitor systems and also to ascertain biological safety regarding environmental radiation around nuclear power plants. Flowers collected periodically from three Tradescantia gardens (in Youngkwang NPP Jeonsigwan. City office and KAERI. respectively) were scored for pink mutation frequencies in stamen hair cells. Pink mutation frequencies in the study area were in the range of 0.82∼1.14. which were slightly lower than the annual mean background mutation frequency of 1.16. Statistical analysis of scoring data showed that there was no significant difference between three Tradescantia gardens (p>0.05). From the result, the environmental radiation level around Youngkwang nuclear power plant can be said biologically safe. Further study for verifying safety will make a role for improving public acceptance related to the peaceful use of nuclear power.

확장 해밀턴 이론에 근거한 탄점소성 시스템의 시간유한요소해석법

김진규,Kim, Jin-Kyu 한국공간구조학회 2014 한국공간구조학회지 Vol.14 No.1

In order to overcome the key shortcoming of Hamilton's principle, recently, the extended framework of Hamilton's principle was developed. To investigate its potential in further applications especially for material non-linearity problems, the focus is initially on a classical single-degree-of-freedom elasto-viscoplastic model. More specifically, the extended framework is applied to the single-degree-of-freedom elasto-viscoplastic model, and a corresponding weak form is numerically implemented through a temporal finite element approach. The method provides a non-iterative algorithm along with unconditional stability with respect to the time step, while yielding whole information to investigate the further dynamics of the considered system.

자주달개비 화분모세포 미세핵 생성률의 방사선량-반응 관계

김진규,송희섭,현성희,Kim, Jin-Kyu,Song, Hi-Sup,Hyun, Soung-Hee 대한방사선방어학회 1999 방사선방어학회지 Vol.24 No.4

본 연구는 이온화 방사선이 자주달개비 화분모세포의 미세핵 생성에 미치는 영향을 분석하여 선량-반응 관계를 수립하고자 수행되었다. 자주달개비의 화분모세포는 감수분열을 통하여 4개의 꽃가루로 발전되는 생식세포로서 분열과정 중에 방사선에 노출되면 염색체 조각이 분리되어 미세핵을 형성한다. 감마선 선량이 증가함에 따라 미세핵 생성률도 증가하였으며 특히 50 cGy까지의 선량범위에서 선량별 미세핵 생성률의 최대값은 뚜렷한 선량-반응관계를 보였다. 선량-반응 관계식을 통해 볼 때 1 cGy의 부가적 선량은 100 사분자당 최대 2개씩의 미세핵을 추가로 생성시키는 것으로 나타났다. 화분모세포 미세핵 생성률의 방사선 지표성은 생물학적 방사선량 감시를 위한 필수선결사항일 뿐 아니라 공해물질의 생체 위해성 검증, 수질과 토양의 건전성 평가 등에 대한 응용성을 갖고 있다. This study was carried out to investigate the radiation dose-response of micronucleus frequencies in Tradescantia pollen mother cells. The number of micronuclei increased in the tetrads as a result of chromosome deletion after irradiation. The maximal frequency of micronuclei showed a good dose-response relationship in the range of dose $0{\sim}50$ cGy. On the basis of the relationship, a dose of 1 cGy results maximally in two additional micronuclei in 100 tetrads. The radiation dose-response relationship of micronucleus occurrence is prerequisite to biological monitoring of radiations. The micronucleus assay can be applied to biological risk assessment of environmental toxicants, and to integrity test of water or soils of interest.

중성자와 감마선 중복 조사가 자주달재비 분홍돌연변이율에 미치는 영향

김진규,이영근,김재성,신해식,현성희,Kim, Jin-Kyu,Lee, Young-Keun,Kim, Jae-Sung,Shin, Hae-Shick,Hyun, Soung-Hee 대한방사선방어학회 2000 방사선방어학회지 Vol.25 No.2

The effects of combined irradiation of neutrons and ${\gamma}$-rays were analysed by means of Tradescantia stamen hair (TSH) assay. Potted plants were irradiated with $0{\sim}2$ Gy of ${\gamma}$-rays. For the combined treatments, the plants were irradiated with neutrons from $^{252}Cf$ 24 hours before or after ${\gamma}$-irradiation. The slopes of dose-response curves were 5.98, 6.17 and 7.48, in ${\gamma}$-rays, ${\gamma}$-rays+neutrons, and neutrons+${\gamma}$ -rays irradiated groups, respectively. The biological efficacy of radiations in the induction of pink mutations increased by 25% in neutrons+${\gamma}$-rays irradiated group, while it increased by 12% in ${\gamma}$-rays+neutrons irradiated group. The combined irradiation with two kinds of radiations results in the different efficacy of radiation depending on the order of irradiations, which is of great importance in the related fields such as sterilization and radiotherapy. 자주달개비 식물체에 감마선과 중성자를 중복 조사하였을 패 나타나는 수술털(TSH) 분흥돌연변이율의 변화를 분석하였다. 감마선은 $0{\sim}2$ Gy의 범위에서 선량별 조사를 하였으며 중성자는 $^{252}Cf$ 선원으로부터 일정한 거리에 식물체를 배열하여 조사하였다. 감마선을 선량별로 조사한 후 중성자를 조사한 때의 TSH 분홍돌연변이 감마선량-반응의 증가계수는 6.17로 감마선량-반응식의 5.98에 비해 12%의 방사선효율 증가를 초래했으며 중성자를 먼저 조사한 다음 감마선을 조사한 경우는 증가계수가 7.48로서 25%의 방사선 생물효율 증대가 나타났다. 두 종류의 방사선 중복 조사시 조사방식의 선 후 조합에 따른 방사선생물효율 증대가능성은 멸균 또는 세포사멸 등 방사선을 긍정적으로 이용하는 분야에 있어 매우 중요한 의미가 있다.

Artemia ( Class Crustacea ) 알의 부화에 미치는 이온화방사선의 효과

김진규,김원록,이영근,이창주,장화형 ( Jin Kyu Kim,Won Rok Kim,Young Keun Lee,Chang Joo Lee,Hwa Hyoung Chang ) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.2

Tradescantia in BNL 4430 is a hybrid clone heterozygous for its flower color and extremely sensitive to ionizing radiation. Such a fact made people around nuclear power plants be interested in Tradescantia, a botanical tester of radiation effects. The pur pose of this study is to provide the botanical supplement to physical radiation monitor systems and also to ascertain biological safety regarding environmental radiation around nuclear power plants. Flowers collected periodically from three Tradescantia gardens (in Youngkwang NPP Jeonsigwan. City office and KAERI. respectively) were scored for pink mutation frequencies in stamen hair cells. Pink mutation frequencies in the study area were in the range of 0.82∼1.14. which were slightly lower than the annual mean background mutation frequency of 1.16. Statistical analysis of scoring data showed that there was no significant difference between three Tradescantia gardens (p>0.05). From the result, the environmental radiation level around Youngkwang nuclear power plant can be said biologically safe. Further study for verifying safety will make a role for improving public acceptance related to the peaceful use of nuclear power.

시편의 문맥적 이해의 복음주의적 성경해석에의 기여

김진규 ( Jin Kyu Kim ) 한국복음주의신학회 2012 성경과신학 Vol.62 No.-

본 연구의 목적은 1970년대 이후에 유행하고 있는 시편의 문맥적 이해가 복음주의적 성경해석에 어떤 기여를 했는가를 파악하는 데 있다. 먼저 본 연구에 있어서 선구적인 기여를 한 학자들을 살펴보았다. 그 중에 델리취, 브렌낸, 차일즈의 기여가 두드러진다. 그런데 가장 큰 기여를 한 사람은 G. 윌슨이다. 그의 논문 "히브리 시편의 편집"과 후속 소고들은 시편의 문맥적 해석을 위한 확고한 방법론적 기초를 놓았다. 그럼에도 불구하고 그는 시편 제4-5권에 나오는 제왕시들의 전략적 배치를 밝혀내는데 실패하였고, 그로 말미암아 시편 전체의 편집 의도를 바로 간파하지 못했다. 그 이후 자이볼트, 메이스, 쨍어, 밑첼 등 학자들의 연구로 인하여 시편 마지막 두 권의 배열에 대한 상당한 연구의 진전이 있었고, 제왕시들을 전략적으로 배치한데 대한 편집의도를 더욱 명확하게 이해하게 되었다. 하지만 여전히 해결되지 않은 과제는 (비록 부분적인 연구는 있었지만) 시편 마지막 두 권에 나오는 제왕시들의 전략적 배치에 대한 총체적인 연구가 부족하였다. 필자는 박사학위논문에서 바로 이 이슈를 다루었고, 이를 토대로 시편전체에 전략적으로 배치된 제왕시는 종말론적-메시야적 메시지가 핵심적인 편집의도였음을 역설하게 되었다. 지금까지 연구를 기초로 시편의 문맥적 이해가 성경해석에 기여한 점을 4가지로 요약하였다. 1) 구속사적 성경이해에 크게 기여하게 되었다. 2) 그리스도 중심의 성경해석으로 인도하였다. 3) 시편도 문맥이 중요하다는 사실을 일깨웠다(거시적, 미시적 맥락의 중요성). 4) 구약의 종말론에 대한 보다 넓은 이해의 길을 열었다. 궁컬과 모빙컬은 주로 재구성된 역사적 의미를 찾는 데치중 하였다면, 시편의 문맥적 해석은 시편의 문맥의 중요성을 발견하였고, 이로 말미암아 시편 전체의 메시지를 바로 이해하는 데 크게 기여하게 되었다. The goal of the present study is to find what are the contributions of a contextual understanding of the Psalter-which has been in vogue after 1970`s-to the evangelical interpretation of the Bible, First, the author surveyed some of the pioneers who greatly contributed to this method of research. The researches performed by Delitzsch, Brennan, and Childs are prominent among them. Above all, Gerald Wilson made the most outstanding contributions to this research. His thesis, The Editing of the Hebrew Psalter, and his journal articles established a solid methodological foundation for this research. Nevertheless, he failed to recognize the strategic arrangement of royal psalms in Books IV-V, and thereby he could not correctly identify the editorial purpose of the Psalter as a whole. Afterwards, the researches performed by such scholars as Seybold, Mays, Zenger, Mitchell, and so on made much progress in the research of the strategic positioning of royal psalms in the last two books of the Psalter, and thereby we came to understand the editorial agenda behind the strategic arrangement of the royal psalms more clearly. However, the problem yet to be solved (though there were partial studies) was to identify the strategic positioning of royal psalms in the last two books of the Psalter as a whole. The present author dealt with the very issue in my doctoral dissertation, in which he claimed that the royal psalms strategically positioned in the whole Psalms deliver an eschatological-messianic message, that is, the central editorial agenda of the final form of the Psalter. Based upon the studies done up to the present, the author summarized the following four points of contributions of a contextual understanding of the Psalter to the biblical interpretation. 1) It greatly contributed to our redemptive-historical understanding of the Bible. 2) It led to the Christ-centered understanding of the Bible. 3) It aroused us to realize the importance of the context of the Psalter (the importance of the macro- and micro-contexts). 4) It opened our eyes wide to see the eschatology of the Old Testament more clearly. Gunkel and Mowinckel focused narrowly on finding out the reconstructed historical meaning of the text, but a contextual understanding of the Psalter led us to see the importance of the literary context of the Psalter, and thereby greatly contributed to a better understanding of the message of the whole Psalter.

Current Limit을 이용한 Current Mode Boost DC/DC 컨버터의 효율 향상에 관한 연구

김진규(Kim Jin Kyu),정성연(Jeong Seong Yon),두수연(Doo Sue Yeon),박용식(Park Young Sik),곽계달(Kwack Kae Dal) 대한전자공학회 2006 대한전자공학회 학술대회 Vol.2006 No.11

Robert Frost의 자연

김진규 ( Kim¸ Jin-kyu ) 현대영미어문학회 1994 현대영미어문학 Vol.12 No.-

Robert Frost had too widely concern and interest of Nature. He admits the mutural relations between man and nature in human life and the benefitable and inbenefitable nature. He thinks that man and nature should not live in same ways of life themselves but keep mutual confrontation. English Romantists try to be acceptable to objective beauty and the hidden meaning in nature. Furthermore, they think humans can be given sensibility and morality from the communion with nature. Frost thinks that man and nature exists in a different dimension and are naturally in born for themselves. That is to say, god and nature exist separately, and they are in a different realism from each other. In other words, god shapes the universe and seasons, and rules his own realism but only mankind makes walls for himself. Frost thinks that nature is a kind of background in human life for materializing relations of importance, therefore, he does not have deep philosophical ideas in his poems. He tries to seek the true meaning of human life in living with nature. He indicates how to relate man and nature and how to control the law of nature and changing of seasons through working in coordination with each other. In the poems of Robert Frost, his main theme is both sides of nature, and then his concern and interest are to explain human living with the background of nature. We can see the greatness of his poems through the relationships he creates between man and nature. Frost also indicates human limitation in living with nature, but he insists that humans should not obey nature, and should follow the pursuit of their own life. As a result, Frost does not see the beauty of nature, but he admits the both sides of the advantages and disadvantages in nature.

고대러시아 문학어형성과정에서 언어주체로서의 끼릴 뚜롭스끼의 역할

김진규(Kim Jin Kyu) 한국노어노문학회 2001 노어노문학 Vol.13 No.2

전자우편을 위한 클라이언트 / 서버 환경에서의 인증 구조

김진규(Jin-Kyu Kim),김영수(Young-Soo Kim),김성옥(Sung-Ok Kim) 한국정보과학회 1997 한국정보과학회 학술발표논문집 Vol.24 No.2Ⅲ

전자우편 시스템은 인터넷의 기반이 되는 서비스의 하나이다. 개인간의 통신을 가능하게 했다는 점에서 전자우편 시스템은 대중적으로 널리 보급되었으며, 실제로 응용 범위도 넓다. 특히 IMAP4나 POP3를 이용하여 클라이언트/서버 환경에서는 원격 접속을 통해 전자우편의 송, 수신을 가능케 함으로서 많은 편리를 제공하지만, 사용자 개인의 정보와 패스워드 노출 등 보안에의 취약성이 문제가 되고 있다. IMAO4나 POP3에서는 이런 문제에 대응하기 위한 인증 메커니즘을 제공하고 있다. 따라서 본 논문에서는 이러한 인증 메커니즘에 대해 살펴보고, 이를 좀더 융통성 있게 확장할 수 있는 구조를 설계한다.