A generalized self organizing evolutionary algorithm and its efficient application to control problems

정일권,이주장,Jeong, Il-Gwon,Lee, Ju-Jang 제어·로봇·시스템학회 1997 제어·로봇·시스템학회 논문지 Vol.3 No.3

널리 쓰이는 진화 알고리즘은 크게 두가지가 있다. 유전 알고리즘과 진화 기법이 그것이다. 이들 알고리즘은 실행 전에 사용자가 정해주어야 하는 변수들을 가지고 있다. 본 논문에서는 이 두 알고리즘을 일반화시키고 집단의 크기, 교차변이 연산자 적용 확률 그리고 돌연변이 연산자 적용 확률과 같은 변수들을 알고리즘이 수행되는 동안 스스로 정하는 일반화된 자기 형성 진화 알고리즘을 제안한다. 제안된 알고리즘의 타당성과 효용성은 시스템 동정화와 다개체 시스템 제어의 두가지 복잡한 제어 문제에 대한 적용을 통해 보여진다.

청소년 책세상이 열린다 - 전문가의 대안 칼럼

정일권,Jeong, Il-Gwon 대한출판문화협회 2004 출판저널 Vol.339 No.-

高敬命 詩文에 나타난 節義와 忠義의 形象化

정일권(Jeong Il Gwon) 한국언어문학회 2014 한국언어문학 Vol.91 No.-

This study speculates on the faithful spirit of Jebong Go Gyeong-Myeong. His faithful spirit was a manifestation of his deeply rooted intention to practice justice dutifully adhered by the heaven as a scholar. To examine his faithful spirit, this study reconsidered what happened to him with regards to Lee Ryang. If Jebong was a faithful man to Lee Ryang, the fidelity he showed during the Imjinweran was hard to understand. As a result, he was discharged from his duties. This discharge was not directly related with the violence of the Lee Yang party. Rather, its evaluation depended on which faction had power at that time. Sagye Kim Jang-Seng was confused between fidelity to his king and his parents, but he praised the fidelity of Jebong who submitted to an appeal by the king according to his duty. Jebong had been living a shameful life as a local administrator for 19 years when he was discharged from his government post. However, Jebong achieved inner maturity and had a good viewpoint to see the society around him rather than fall into despair and frustration. He had direct experience with the sorrows of the common people and consolidated the concept of loyalty to the king and justice for the people. In 1581, Jebong returned to the position of governor of Yeongam and had an opportunity to recover his honor out of the shackles of being a small fry. At that time, Jebong's reward was a benefit from the king and he had direct experience of Chinese culture which he used to increase his knowledge. By realizing our autonomous spirit through writing poetry, he consolidated his fidelity to the country. He paid reverence at the Saamchungsa Shrine to admire the spirit of Mun Chon-Sang who showed fidelity to the country. This demonstrated his fidelity. Jebong did his government work faithfully even though he was already old after he returned to his government post. He recruited volunteers and risked his life as an ordinary person when the Imjinweran broke out. Likewise, Jebong practiced fidelity based on having a firm mind as a scholar under such difficult circumstances. This would be the influence of his grandfather named Go Un who had Confucian justice ideals and the strong fidelity of Honam Sarim. Following teachings by friends and men with noble ideas, he manifested a will to practice the devoted mind of Confucius and pursuing justice in spite of the risk of death. His mind for fidelity was a model of fidelity through which national disasters were overcome through support and fortitude derived from the spirit of Honam Sarim.

최경창 시에 나타난 닫힌 공간의 의미

정일권 ( Jeong Il-gwon ) 한국시가문화학회(구 한국고시가문화학회) 2018 한국시가문화연구 Vol.0 No.41

고죽의 심리는 집단 무의식과 자기 원형 심상 등 여러 요인에 의해 형성됐었음은 주지의 사실이다. 그래서 고죽도 유교 강령이 뿌리 깊게 내린 시대정신과 상황의 틀에서 결코 자유로울 수 없었다. 결국 고죽의 詩는 當時 집단 무의식에 그의 타고난 원형심상이 작동함으로써 그의 심리작용이 표출된 結晶體임을 알 수 있었다. 본고는 이런 인식을 바탕으로 특히 닫힌 시적 공간에서 시에 드러난 고죽의 두 가지 심리 추이를 통해 고죽의 시 정신을 탐구했다. 우선 고죽은 세상의 부조리한 면이나 자신의 질곡의 여정을 토로할 때면 닫힌 공간의 단절양상을 통해 진솔하게 그의 심상을 묘사하는 作詩法을 보였다. 이는 도가의 尙虛 문예관이 아닌 유가의 務實 문예관으로 그 실체를 선명하게 파악하여 지난 자신의 모습을 분명하게 드러내려는 장치였다. 또한 고죽은 이때에 닫힌 시적 공간을 배경으로 심리의 추이도 닫아가는 기법을 사용했는데, 이 역시 대상과 자신의 실태를 드러내 자연스럽게 자신의 의지를 표출하려는 의도였다. 이로써 고죽은 페르조나의 특성을 벗어버리고 자신의 진솔한 면모와 만났다. 결국 고죽은 세상의 부조리한 면이나 자신의 질곡의 여정과 여과 없이 조우해 그 실존에 대한 文藝美를 드러냈다. 다음으로 고죽은 충의에 대한 의지나 인간에 대한 연민과 염원을 표출할 때면 닫힌 공간의 접속양상을 통해 적극적인 태도로 심리를 드러내는 作詩法을 보였다. 즉 고죽은 詩 속에 역사적 전고를 들어 충의에 대한 자신의 의지나 신념을 심층적으로 갈무리했다. 또한 고죽은 사랑하는 이들에 대한 애틋한 마음을 진솔하게 토로함으로써 진정한 정감을 보여 주었다. 이러한 정감은 질곡의 삶을 살아가는 백성들을 대할 때면 더욱 핍진하게 드러났다. 이처럼 고죽은 詩를 통해 닫힌 공간의 접속양상으로 인간에 대한 따뜻한 숭고미를 일깨웠다. 그리고 이때의 공간은 신성 공간이자 치유의 공간이로서 고죽은 이 틈 속에서 삶의 희망과 염원을 노래했다. It is well-known that Go Juk’s psychology was derived from several factors including collective unconsciousness and his own imagery. Therefore, he could not be freed from the spirit of the age and the situation framework in which Confucian principles were deeply rooted. After all, it was discovered that his poetry was resulted from his psychological action when his native imagery worked on collective unconsciousness. Based on the things mentioned above, this study investigated the spirit of his poetry through his psychology revealed in his closed poetic space. First of all, Go Juk described his imagery transparently and honestly through severance of space in expressing absurdity of society and his journey of fetters. He intended to clearly show his own image by identifying himself based on falsehood as one of Confucian points of view. Also, he used a method of closing psychological change on the background of the closed poetic space. It was an intention to reveal his real identity and express his own will naturally. So, Go Juk was freed from characteristics of persona and faced with his honest identity. Readers were impressed by literary beauty when they encountered absurdity of society or Go Juk’s journey of fetters. Then, Go Juk gave a focus on psychology with positive attitude through connecting images of closed space while he expressed the will of loyalty and wish and compassion for humans. That is, Go Juk finished his will or faith with loyalty by presenting antique stories in his poetry. Also he expressed true affection to whom he loved honestly, not lunatically. Such feeling was more truly expressed when he met common people who lived a life of fetters. Thus, Go Juk reminded people of sublime beauty through connecting images of closed space in poetry. The space was space of holiness, sacrifice and healing, and was full of catharsis in which he sang hope and wish for life.

최경창 시에 나타난 시적 공간의 의미

정일권(Jeong, Il-Gwon) 한국언어문학회 2015 한국언어문학 Vol.95 No.-

This study speculates on the poetic intent of Gojuk Choi Gyong-Chang centering on some of his poetry which has an open arrangement with regard to space but has psychologically closed arrangement, based on whether he used the artistic effect positively and actively in writing his poetry, or whether he broke it negatively. This study identified openness and closure in space and its psychological representation and the results are presented as follows: For this purpose, this study examined a few verses with an open arrangement in space and psychologically. In revealing his wishes and desires, and his will with regard to responsibility and integrity as a public man in his poetry, Gojuk was open in space or psychologically, that is, he was positive and active. ‘When he was with those he loved’ or ‘when he dealt with the teachings of a wise and sublime nature’, he opened his psychology to unconsciously open space in order to actively show his enthusiasm. Meanwhile, this study examined a few verses with closed arrangements of space psychologically. Gojuk was psychologically closed in an open space when he was separated from the missing, when he encountered strange and anxious futures or when he was faced with a world filled with desires for the pursuit of fame and wealth. He showed clear intent in writing poetry by setting arrangements in space while having the space closed psychologically. Just as a paradox becomes a stronger affirmation, so the poet's intent was highlighted through the use of open space while being closed psychologically. Thus, the spatial arrangement, closure and openness psychologically were a clue to understand his mind and intent in writing poetry.

유량계 자동검침 중계기를 이용한 상수도 관리시스템

정일권 ( Il-gwon Jeong ),강기준 ( Gi-jun Kang ),이부권 ( Bu-kwon Lee ) 한국정보처리학회 2006 한국정보처리학회 학술대회논문집 Vol.13 No.1

상수도 체계는 크게 생산적인 측면, 유통적인 측면, 하수적인 측면으로 나눌 수 있다. 이중 생산적인 측면과 하수적인 측면은 자동화를 위한 많은 연구가 진행되어 현재 대부분 자동화되어 있다. 하지만 유통적인 측면은 여러 가지 이유들로 아직까지 그 자동화 정도가 매우 미미한 수준이다. 본 논문에서는 상수도 체계 중 유통적인 측면의 자동화를 위해 가장 핵심이 되는 요소인 유량계의 검침을 유량계 자동검침 중계기를 이용하여 자동화 시킨 다음 유·무선 통신을 통하여 원격지(상수도사업소)에서 일괄 관리할 수 있는 "유량계 자동검침 중계기를 이용한 상수도 관리 시스템“를 소개한다.

관동맥 질환에서 혈중 Lipoprotein(a)의 농도

한세환 ( Han Se Hwan ),정일권 ( Jeong Il Gwon ),김기업 ( Kim Gi Eob ),문종호 ( Mun Jong Ho ),박찬욱 ( Park Chan Ug ),신승호 ( Sin Seung Ho ),양동호 ( Yang Dong Ho ),김순길 ( Kim Sun Gil ),홍세용 ( Hong Se Yong ) 대한내과학회 1993 대한내과학회지 Vol.44 No.4

연구배경 : 최근 관동맥질환에서 고콜레스테롤혈증과 함께 Lipoprotein(a){Lp(a)}의 증가가 중요한 위험인자로 알려졌다. 저자들은 Lp(a)가 혈전유발인자인 동시에 한국인의 관동맥질환에서 위험인자가 될수 있음을 알아보기 위하여 본연구를 시행하게 되었다. 방법 : 관동맥 질환 환자 26명(급성 심근경색증 12명, 협심증 14명), 고혈압 환자 16명, 건강이 50명을 대상으로 혈중 Lp(a)를 ELISA법으로 측정하고, 관동맥질환 및 고혈압 환자의 혈중 총콜레스테롤치와 혈중 Lp(a)치와의 관계를 비교하여 보았다. 결과 : 혈중 Lp(a)는 관동맥 질환군에서 358±155mg/L, 고혈압군에서 207±110mg/L, 정상군에서 166±33mg/L로 관동맥 질환군에서 고혈압 및 정상 대조군보다 현저하게 증가되어 있었다(p<0.005). 관동맥 질환 환자중 혈중 총콜레스테롤이 200mg/dl 이하인 16례를 다시 분석해보면 혈중 Lp(a)는 294±129mg/L로 역시 고혈압군 및 정상대조군보다 의미있게 증가되어 있었다.(p<0.05). 각 군에서 혈중 Lp(a)의 성별, 연령별 유의한 차이는 없었으며 콜레스테롤이나 중성지방의 농도에도 통계학적으로 유의한 차이는 없었다. 결론 : 관동맥 질환 환자에서 높은 혈중 Lp(a)는 관동맥 질환에 대한 하나의 위험인자가 됨을 시사한다. 또한 혈중 총콜레스테롤이 200mg/dl 이하인 관동맥질환군에서 높은 Lp(a)농도는 콜레스테롤과는 무관하게 하나의 독립적이 위험인자가 되는 것으로 사료된다. Background: Since its description in the early 1960s by Berg, Lp(a) has been shown to be associated with coronary artery disease(CAD). Lp(a) is composed of one LDL particle, to which one molecule of apolipoprotein(a) is covalently linked. Lp(a) excess is considered to have not only ahterogenic but also antifibrinolytic activities by complex mechanisms. The purpose of this study was to evaluate Lp(a) as a risk factor of CAD, and to study the relations between Lp(a) and cholesterol level in patients with CAD. Methods: We determined plasma levels of Lp(a) in 26 patients with CAD including AMI and AP(11 men and 15 women, median age 60 years), in 16 patients with HT(6 men and 10 women, median age 61 years), and in 50 control subjects (25 men and 25 women, median age 57 years) clinically free of cardiovascular disease. We measured plasma Lp(a) level in CAD and HT group with ELISA method and compared the result with that of control group. We also measured serum cholestreol and TG with autoanalyzer in CAD and HT groups. Results: Plasma Lp(a) levels were 358±155mg/L in CAD group, 207±110mg/L in HT group and 166±33mg/L in control group. Patients with CAD had higher Lp(a) levels than HT and control subjects(p<0.005). No gender differences in Lp(a) levels were observed between men and women(patients or control subjects). No statistically significant differences were seen for total cholesterol and TG in each group. We analyzed again plasma Lp(a) levels of 16 patients with CAD whose cholesterol levels are below 200 mg/dl. It was 294±129mg/L, also higher in CAD compared with HT and control groups(p<0.05). Conclusion: The Lp(a) levels of the CAD groups were significantly higher than those of HT and control groups, this suggest that Lp(a) excess is a risk factor for the development of CAD. The high Lp(a) levles in patients who has serum total cholesterol below 200 mg/dl is considered that is a risk factor, independent of high cholesterol level.

대한간학회지 제8차 춘계학술대회 초록집 : 구연 ; 간세포암의 고주파 열치료 후 재발 양상과 영향 인자

김홍수 ( Kim Hong Su ),김영석 ( Kim Yeong Seog ),정일권 ( Jeong Il Gwon ),김연수 ( Kim Yeon Su ),이문호 ( Lee Mun Ho ),김선주 ( Kim Seon Ju ),심찬섭 ( Sim Chan Seob ),김부성 ( Kim Bu Seong ) 대한간학회 2002 Clinical and Molecular Hepatology(대한간학회지) Vol.8 No.2(S)

고령 여성에서 발생한 섬유층판 간세포암

이태훈 ( Lee Tae Hun ),조원영 ( Jo Won Yeong ),정일권 ( Jeong Il Gwon ),김홍수 ( Kim Hong Su ),박상흠 ( Park Sang Heum ),김선주 ( Kim Seon Ju ),김창진 ( Kim Chang Jin ) 대한내과학회 2003 대한내과학회지 증례 특집호 65-5 부록3 Vol.0 No.-

Fibrolamellar hepatocellular carcinoma (FLHCC) is an entiry distinct from ordinary hepatocellular carcinoma (HCC) and is very rare in oriental countries. In contrast to the ordinary type of HCC, FLHCC is predominantly a disease of young adults and shows n

대한간학회지 제8차 춘계학술대회 초록집 : 포스터 전시 ; 수술 후 빠른 기간내에 재발한 간세포암 1예

이선해 ( Lee Seon Hae ),박현준 ( Park Hyeon Jun ),김영훈 ( Kim Yeong Hun ),정일권 ( Jeong Il Gwon ),김홍수 ( Kim Hong Su ),이문호 ( Lee Mun Ho ),김선주 ( Kim Seon Ju ) 대한간학회 2002 Clinical and Molecular Hepatology(대한간학회지) Vol.8 No.2(S)