Characterization of the European type of maternal lineage evident in extant Jeju native pigs

Byeong‐Woo Kim,In‐Cheol Cho,Moon‐Sung Park,Tao Zhong,임현태,Sung‐Soo Lee,Hee‐Bok Park,Moon‐Suck Ko,Jun‐Heon Lee,Jin‐Tae Jeon 한국유전학회 2011 Genes & Genomics Vol.33 No.2

Using a partial D‐loop sequence of mtDNA, an intensive analysis was conducted of the maternal lineages of Jeju native pigs (JNPs) from Korea. In total, 100 mtDNA sequences were obtained from Asian wild boars (AWBs), European wild boars (EWBs), Asian domestic pigs (ADPs), European domestic pigs (EDPs), and JNPs and were used for phylogeny and network analyses. Two distinct JNP groups - one (JNPA) in the Asian cluster and the other (JNPE) in the European cluster - were identified in the estimated phylogenetic tree and network. The maternal lineage of JNPE was the closest to that of EWB and a clear haplogroup was identified that shared an identical haplotype (hap04) among 15 individuals of JNPE and 2 individuals of EWB. A Landrace and an EWB shared hap03with a JNPE. EWB, Landrace, Large White, and Duroc formed two clear haplogroups with JNPE in a parsimonious medianjoining network analysis, suggesting that an obvious maternal contribution of EDP has occurred in JNPE in recent years. A pair‐wise mismatch analysis also indicated that JNPE may have experienced a sudden population expansion, suggesting a more recent establishment compared with the gradual population expansion of JNPA. The JNPE group therefore should be further evaluated in order to decide whether this group should be culled or accepted into further programs for maintenance of the JNP population as a pure breed.

직선화된 와이어의 버 없는 전단기 개발에 관한 연구

조준원,김웅겸,김헌영,김병의 강원대학교 산업기술연구소 2005 産業技術硏究 Vol.25 No.B

Micro wires manufactured by the straightening process are used in the BT(Bio-Technology), IT(Information-technology), NT(Nano-Technology). We have developed a novel wire straightener which uses the direct heating method(DHM) for straightening the micro wire and shearing device for burr-less cutting. In this study, we confirm the tendency of micro wire after the shearing process. It is impossible to remove the burr in the shearing process. However, the embodiment of minimum burr size after the shearing process is the best in-process method. In order to minimize the burr size, we have accomplished the various experiment condition such as the U-groove, the effect of counter punch, the shear angle, clearance.

간세포암에 대한 간동맥 화학색전술의 치료효과

이헌영,김병호,정현용,김영건,조준식 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.2

Hepatocellular carcinoma(HCC) is the second most common cause of cancer death in Korea. Generally, HCC was unresectable due to the frequently associated cirrhosis and advanced stage of tumor. As a palliative therapy of HCC, transcatheter arterial chemoembolization(TACE) was a proven effective mean of treating inoperable HCC. We have analyzed the effectiveness of TACE in inoperable HCC. TACE was performed in 20 patients from January in 1990 to May in 1993 at Chung Nam National University Hospital with the infusion of mixture of Lipiodol and Adriamycin. We analyzed the survival rates of the TACE group and the control group who received no specific treatment. The results were follows ; 1) The survival rate was significantly higher in TACE group than control group(p<0.01). The survival rate at the end sixth months and one year were 62.8% and 40.0% in TACE group, 26.6% and 0% in control group, respectively. 2) A declining level of AFP(Alph-fetoprotein) was shown in 8 among 10 cases who underwent TACE/and was higher than 500 ng/ml in pre-TACE level(p<0.01) and also tumor size was decreased in 7 among 20 cases who underwent TACE. 3) Side effects were fever(80.0%), and upper abdominal pain(75.0%) in TACE group but improved within 7 days after TACE and impairment of liver function was developed in most patients(TACE group) but improved within 2 weeks after TACE. As a palliative therapy of HCC, TACE is an effective and useful modality in treating and prolonging the survival time of patients with unresectable hepatocellular carcinoma.

대전 액션 게임을 위한 신경망 지능 캐릭터의 구현

조병헌(Byeong-Heon Cho),정성훈(Sung-Hoon Jung),성영락(Yeong-Rak Seong),오하령(Ha-Ryoung Oh) 한국지능시스템학회 2004 한국지능시스템학회논문지 Vol.14 No.4

본 논문에서는 신경망을 이용하여 대전 액션 게임의 캐릭터들을 지능화하는 방법을 제안한다. 일반적인 대전 액션 게임에서 어떤 행동은 여러 개의 시간 단위에 걸쳐 이루어진다. 그러므로 캐릭터의 어떤 행동에 대한 결과는 곧바로 나타나지 않고 몇 개의 시간 단위가 지난 후에 나타난다. 이러한 캐릭터들에 적합한 신경망을 설계하기 위해서는 신경망을 학습시키는 시점을 결정하는 것과 더불어 학습시에 사용되는 입력과 출력 값을 선정하는 것이 매우 중요하다. 본 논문에서는 캐릭터의 행동의 적합도를 게임 점수의 변화로 평가한다. 그러므로 게임 점수의 변화가 생길 때마다 신경망은 학습된다. 학습을 위해서는 우선 그 변화를 야기한 이전의 결정을 파악하고, 그 당시의 입력값, 출력값, 그리고 현재의 점수의 변화를 이용하여 신경망을 학습시킨다. 제안된 알고리즘의 성능을 평가하기 위하여 여러 실험을 간단한 (하지만 실제 게임과 매우 유사한) 게임 환경에서 수행하였다. 실험 결과 학습 초기에는 무작위의 캐릭터에 대해 점수를 획득하지 못하던 지능 캐릭터가 제안된 알고리즘으로 학습하면 최대 3.6 배의 점수를 획득하는 성능을 보였다. 그러므로 제안된 지능 캐릭터가 게임의 규칙과 기술을 학습하는 능력이 있는 것으로 결론지을 수 있다. 제안된 알고리즘은 온라인 게임과 같이 캐릭터들이 서로 대결하는 게임들에 적용할 수 있다. This paper proposes a method to provide intelligence for characters in fighting action games by using a neural network. Each action takes several time units in general fighting action games. Thus the results of a character's action are not exposed immediately but some time units later. To design a suitable neural network for such characters, it is very important to decide when the neural network is taught and which values are used to teach the neural network. The fitness of a character's action is determined according to the scores. For learning, the decision causing the score is identified, and then the neural network is taught by using the score change, the previous input and output values which were applied when the decision was fixed. To evaluate the performance of the proposed algorithm, many experiments are executed on a simple action game (but very similar to the actual fighting action games) environment. The results show that the intelligent character trained by the proposed algorithm outperforms random characters by 3.6 times at most. Thus we can conclude that the intelligent character properly reacts against the action of the opponent. The proposed method can be applied to various games in which characters confront each other, e.g. massively multiple online games.

상자 채우기 문제를 위한 새로운 유전자 알고리즘

조병헌(Byeong Heon Cho),정성훈(Sung Hoon Jung),김기형(Ki Hyoung Kim),성영락(Yeong Rak Seong),오하령(Ha Ryoung Oh) 한국정보과학회 1999 한국정보과학회 학술발표논문집 Vol.26 No.1A

지금까지 상자 채우기 문제(bin packing problem)를 풀기 위하여 다양한 방법들이 제안되었다. 일반적으로 많이 사용되는 방법으로는 FF, FFD, BF, BFD와 같은 간단한 휴리스틱(heuristic) 방법이 있다. 그러나, 많은 경우 위 방법으로는 최적인 해를 생성하지 않는다. 상자 채우기 문제를 해결하는 또 다른 방법으로는 유전자 알고리즘(genetic algorithm)을 이용한 방법이 있다. 과거에 연구된 유전자 알고리즘은 상자 채우기 문제의 제한을 만족하지 않는 개체를 생성하는 경우가 많아서 효율적이지 못했다. 본 논문에서는 무효한 개체를 생성하지 않고, 효과적으로 상자 채우기 문제를 해결하는 새로운 유전자 알고리즘을 제안한다. 여러 가지 기존의 문제를 적용해 본 결과 FF, FFD, BF, BFD와 유사한 또는 그보다 좋은 결과를 생성했다. 특히 본 논문에서 제안한 유전자 알고리즘은 최적해를 찾는 경우도 있었다.

효율적 멀티캐스팅을 위한 분할 전송 알고리즘

조병헌(Byeong Heon Cho),오하령(Ha Ryoung Oh),성영락(Yeong Rak Seong) 대한전자공학회 2002 대한전자공학회 학술대회 Vol.2002 No.11

Development Success of the Secondary Mirror Prototype for Giant Magellan Telescope

Ju Heon Koh,Young-soo Kim,Ho June Jung,Hwa Kyoung Jung,Ho-Soon Yang,Ho-Sang Kim,Kyoung-Don Lee,Myung Cho,Won Hyun Park,Hyo-Sung Ahn,Narae Hwang,In-Soo Yuk,Byeong-Gon Park 한국천문학회 2013 天文學會報 Vol.38 No.2

GPS 보호비 연구

유병재(Byeong-Jae Yu),심용섭(Yong-Sup Shim),조현묵(Hyun-Mook Cho),이일규(Il-Kyoo Lee),홍헌진(Heon-Jin Hong) 한국통신학회 2011 韓國通信學會論文誌 Vol.36 No.3

위성영상 기반 사과, 배 작목 최적 분류 기법 연구

민병헌(Byeong Heon Min),송승욱(Seung-Wook Song),이한준(Han Jun Lee),이한(Han Lee),서한률(Han Ryul Seo),조정건(Jung Gun Cho) 한국원예학회 2022 한국원예학회 학술발표요지 Vol.2022 No.11

조선 후기 권선서(勸善書)와 민화문자도의 윤리의식

조헌철 ( Cho Heon Cheol ),임병학 ( Lim Byeong Hak ) 성균관대학교 인문학연구원(성균관대학교 인문과학연구소) 2018 人文科學 Vol.0 No.69

본 논문은 조선 후기 삼교합일 사상을 담은 도교 권선서와 민화문자도(民畵文字圖)의 윤리의식에 대해 고찰한 것이다. 민중교화서(民衆敎化書)의 기능을 가졌던 권선서는 당(唐) 중기 이후의 삼교합일이라는 사상적 융합의 결과로 성립되었다. 중국에서는 송대(宋代) 신도교의 교단 형성으로 경전의 제작이 활발해지면서 유불도 삼교의 윤리를 융합한 권선서가 유행하게 되었고 여기에 제시된 윤리적 덕목들을 실천하고자 하는 흐름이 확산되었다. 삼교합일 사상과 교화적 내용을 담은 권선서는 명대(明代)의 민중교화 정책에도 부합되어 그 흐름이 이어지게 되었으며, 동시대인 조선에도 영향을 미쳤다. 권선서를 통한 백성교화는 세종 때 『삼강행실도』의 편찬을 시작으로 조선 후기에 이르러서는 왕실뿐만 아니라 사찰과 개인까지 간행에 참여하게 되었다. 조선 후기 대내외적인 위기와 함께 윤리의식의 다변화 과정에서 권선서는 하나의 윤리서로 유통되었다. 권선서가 민간교화의 목적으로 유통되는 역사적인 흐름은 개인윤리로서의 ‘효제충신(孝弟忠信)’이나 ‘예의염치(禮義廉恥)’와 같은 사회적 윤리의식을 강조하는 민화문자도의 확산과 그 흐름을 같이하고 있음을 알 수 있다. 그리고 조선 후기의 민화문자도가 유행한 경위를 살펴보면 조선 후기 민중들의 윤리의식을 담고 있는 민화문자도는 지도층의 직접적인 개입 없이 민중들의 자발적인 선택에 의해 형성되어 확산된 것으로 교화와 계몽으로 선행을 실천하게 하려는 도교 권선서의 유행과도 흐름을 같이하고 있다. 이것은 조선 후기 민중들의 윤리사상적 동향이었으며, 대내외적인 위기와 모순을 극복하고자 하는 조선사회 민중들의 사회적 응전양상이었다. This paper is aimed at examining the ethical consciousness manifested in the pictorial ideographs in folk paintings (minhwa munjado, 民畵文字圖) and the Daoist books for promoting virtuous deeds (gwonseonseo, 勸善書) ― which contained the thoughts of the confluence of the three religions of Confucianism, Buddhism and Daoism ― in the late Joseon dynasty. The idea of the Daoist books for promoting virtuous deeds, aimed at edifying the public, was written as a result of the confluence of the three religions in the mid-Tang dynasty and thereafter. In China, through the formation of the new Daoist Order in the Song dynasty, the scriptures were actively produced and the books for promoting virtuous deeds that fused the three religions became popularized. There was an increasing tendency that people practiced ethical virtues whose models were presented in the books for promoting virtuous deeds. The books for promoting virtuous deeds containing the thoughts of unifying the three religions and the contents of edifying the public in the Joseon dynasty had been largely influenced by the policy of educating and civilizing the public in the Ming dynasty. The edification of the people through the books for promoting virtuous deeds started in earnest with the compilation of the Samgang haengsildo (Illustrated Conduct of the Three Bonds, 三綱行實圖) during the reign of King Sejong in the Joseon dynasty In the late Joseon dynasty, not only the royal families but also the Buddhist temples and the individual public participated in the publication of the books. In the process of the diversification of the ethical consciousness along with the internal and external crises in the late Joseon dynasty, the books for promoting virtuous deeds were circulated as the codes of ethics among the general public. When we reconsider the historical trend that Daoism-based books for promoting virtuous deeds prospered for the purpose of edifying the people, we can see that the popularity of the books for promoting virtuous deeds and the pictorial ideographs in folk paintings ― which emphasized social and ethical consciousness such as filial piety (孝), brotherhood (悌), loyalty to the nation (忠), trust (信) or individual sense of ethics such as proprieties (禮), righteousness (義), uprightness (廉) and a sense of shame (恥) ― can be understood under the same context. The popularity of the pictorial ideographs in folk paintings which convey the ethical consciousness of the people in the late Joseon dynasty were produced voluntarily in society among the public without any direct intervention of the ruling class. The popularity of the pictorial ideographs shares the similar trend with the development of the Daoist books for promoting the performance of virtuous deeds by edifying and enlightening the people and encouraging them to do so. This not only coincides with the trend of the ethical thoughts among the public in the late Joseon society but also manifests the way how the people of Joseon took up the challenges as they were overcoming the internal and the external crises and coming up with social irregularities and absurdities.