퍼지시스템과 진화알고리즘 기반 지역부하예측 시스템개발

張右晳,指眩旻,姜渙一 명지대학교 산업기술연구소 2006 産業技術硏究所論文集 Vol.25 No.-

This paper proposes a time series prediction method for the nonlinear system using the fuzzy system and the evolutionay strategy and the genetic algorithm. At first, we obtain the optimal fuzzy membership function using the evolutionary strategy or genetic algorithm. With the optimal fuzzy rules and its input differences, a better time prediction series system may be obtained. We obtain a good result for the time prediction of the regional electric load. In addition we implement the graphic user interface for the proposed algorithms.

Synthesis of 1,1′-Bis(1-Hydro-2,3,4,5-Tetraphenyl-1-Silacyclopentadienyl) [Ph4C4Si(H)-(H)SiC4Ph4] from Silole Dianion {[SiC4Ph4]2 2[Na+]}; Oxidative Coupling of Silole Dianion {[SiC4Ph4]2 2[Na+]} via Silolyl Anion Radical [HSiC4Ph4] [Na+] by Anhydrous H

홍장환 배재대학교 자연과학연구소 2019 自然科學論文集 Vol.30 No.1

Reaction of silole dianion {[SiC4Ph4]2[Na+] (1) with anhydrous hydrogen chloride (HCl) gas in THF at -78°C provides 1,1′‐bisbis(1‐hydro‐2,3,4,5‐tetraphenyl-1‐silacyclopentadienyl) [Ph4C4Si(H)‐(H)SiC4Ph4] (2). It is suggested that a reaction of the silole dianion (1) with hydrogen chloride immediately gives 1‐hydro‐silole anion {[H‐SiC4Ph4]‐•[Na+]} (3), oxidation of which by an additional hydrogen chloride provides the dihydrobissilole (2) via 1‐hydro‐silole radical {[H‐SiC4Ph4]•} (4).

위의 유암종과 선종의 병발 1례

장재식,강혁주,이중현,서영범,윤병구,김용섭,이구,서정일,양창헌,이창우,김정란,윤환중 東國大學校醫學硏究所 2000 東國醫學 Vol.7 No.-

유암종은 전신에 퍼져 잇는 장크롬친화성 세포에서 기원하는데 위의 유암종은 비교적 드문 질환으로 모든 유암종의 1.9~2.2%에 해당하며 위에 발생하는 종양의 1% 미만에서 보고되고 있다. 유암종은 일반적으로 증상이 비특이적이고 면역조직화학검사에 의해서 진단되기 때문에 과거에는 드물게 발견되었으나 최근 내시경 기기 및 술기의 발전과 검사 빈도의 증가 및 면역조직화학검사의 발달로 진단율이 증가 추세에 있으며, 드물지만 유암종에서 선암과 공존하는 예들이 보고되고 있다. 저자들은 심와부 동통을 주소로 내원한 70세 남자 환자의 상부위장관내시경 검사에서 위체상부의 대만곡에서 0.4×0.4 cm 크기의 중간 함몰을 가진 Yamada 1형의 용종과 함께 전정부의 전벽에서 0.8×0.5 cm 크기의 융기된 점막 소견을 보여 조직학적으로 각각 위유암종 및 위선종임을 확진한 후 내시경적 용종 절제술로 치료한 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Carcinoid tumors are arisen from enterochromaffin cells, which are scattered throughout the body. These tumors are composed of variable numbers of cells that contain endocrine granules in their cytoplasm, which can be identified by immunohistochemistry and electron microscopy. Gastric carcinoid tumors are relatively rare tumor, the reported incidence being 1.9~2.2% of all carcinoid tumors and less than 1% of all gastric tumors. Sometimes, composite carcinoid tumors and adenocarcinoma is reported. We experienced a case of the coincidence of carcinoid tumor and adenoma at the other site of the stomach in a 70 year old male patient. Gastrofiberscope showed 0.4×0.4 cm sized Yamada type I polyp with central depression on the greater curvature of the proximal body and 0.8×0.5 cm sized focal slightly elevated mucosa on the anterior wall of the antrum. The endoscopic biopsy specimens revealed carcinoid tumor and tubular adenoma with moderate atypism, respectively. The carcinoid tumor and adenoma were removed by endoscopic polypectomy. According to the follow-up gastrofiberoscopy after 7 month later, both lesions were nearly normal mucosa except whitish atrophic change after polypectomy.

환경보고서의 유용성에 대한 이용자의 인식에 관한 설문조사연구

장지인,김장환,정혜정 대한경영학회 2003 大韓經營學會誌 Vol.16 No.7

This study will develop the way of working out the more useful environmental report based on the result of the survey which was carried out in the companies currently publishing the report(publisher) and stakeholder(report user). At present, the number of domestic company which publishers the environmental report is quite few, however, its number will be expected to reach high in near future in the light of its importance. In the survey of usefulness of those environmental reports, 24 out of 25 report publishers and 18 out of 22 report users answered "useful". However, both of publishers and users pointed out the various points at issue of their points of views when they wrote and used the reports. First of all, the publishers usually make out the environmental reports based on the guideline out of the Ministry of Environment which is official recognized standard to help the publishers the consistency of the report and easiness of making out. However, the publishers also indicate controversial points of impeding the publisher's creativity due to its too much generalization. The users of those environmental reports present the problems of the impossibility of making comparison between entities due to the difficulties of the substance of the report, credibility of its objectivity and confidence, and lack of unified formation of report. The result of this survey is expected to be good reference for the development of the environmental report.

진화알고리즘과 퍼지시스템을 이용한 단기부하예측 시스템개발에 관한 연구

張右晳,李性穆,姜渙一 명지대학교 산업기술연구소 2006 産業技術硏究所論文集 Vol.25 No.-

This paper proposes a time series prediction method for the nonllinear system using the fuzzy system and the evolutionay strategy and the genetic algorithm. At first, we obtain the optimal fuzzy membership function using the evolutionary strategy or genetic algorithm. With the optimal fuzzy rules and its input differences, a better time prediction series system may be obtained. We obtain a good result for the time prediction of the short term electric load. In addition we implement the graphic user interface for the proposed algorithms.

Kalman-Szego-보조정리의 응용에 의한 제한된 제어입력을 위한 보상기 설계

박장환,이용구,엄기환 동국대학교 자연과학연구원 1995 자연과학연구 논문집 Vol.15 No.-

In this paper a method for design in order to use control input due to the saturation is proposed. This is done by designing a linear controller with the good property for reference input and control output without considering saturation or partially considering the saturation and is done by setting up a compensation loop which compensates for the lost portion of control input due to saturation. The Lyapunov function constructed by using the Kalman-Szego-Lemma was guaranteed for the stability problem arising due to the nonlinerarity of a compensation loop when a compensator is designed. Also, it is shown that this Lyapunov function was satisfied for Riccati equation.

아동의 농촌체험과 정서지능과의 관계

조록환,박장희 한국농업교육학회 2007 농업교육과 인적자원개발 Vol.39 No.3

이 연구는 아동의 농촌체험과 정서지능발달과의 관련성을 탐색해 보고 아동의 정서지능발달을 지원 해 줄 수 있는 농촌체험프로그램개발을 위한 기틀을 마련해 주는데 연구의 목적이 있다. 이를 위해 본 연구에서는 서울시내 소재 초동학교에 재학 중인 4~6 학생 972명을 대상으로 지난 3년 동안의 농촌 체험실태와 정서지능발달 경향성,그리고 이 두변인간의 관련성을 탐색하였으며,다음과 같은 결과를 얻었다. 첫째,아동들은 지난 3년 동안 평균 5.15회 정도의 농촌체험을 하였다. 횟수별로는 1,2회성 체험아동들이 응답자의 33.1%를 차지하며 가장 많았고,다음으로는 6회 이상 체험아동들이 응답자의 23.8%를 차지하여 많았다. 응답자 가운데 20.4%는 지난 3년 동안 농촌체험을 해본 적이 없는 것으로 나타났다. 농촌체험의 유형별로는 농촌문화생활체험과 농촌자연체험을 많이 한 반면,농사체험을 비교적 덜한 것으로 나타났다. 전반적으로 볼때,6학년 아동들의 농촌체험활동이 저조한 것으로 나타났다. 둘째,아동의 정서발달은 아동의 성과 연령에 따라 유의한 차이가 있었다. 먼저 성별에 따라서는 여아가 남아보다 정서지능(전체)과 정서지능의 하위요인 중에 정서인식,정서표현,정서조절능력이 높았다. 그리고 학년에 따라서는 4학년 아동들이 5,6학년 아동들보다 정서지능의 하위요인인 정서활용능력이 높았다. 셋째,아동의 정서지능은 농촌체험의 횟수에 따라 차이가 있었다. 즉,6회 이상 농촌체험을 한 이동들이 농촌체험경험이 전혀 없는 아동들에 비해 정서지능(전체)이 높았으며,3회 이상 농촌체험을 한 아동들이 농촌체험경험이 전혀 없는 아동들보다 정서지능의 하위요인인 정서활용능력이 높았다. The purpose of this study was to investigate the relationship between children's rural activity and emotional intelligence. The subjects were 972 elementary school students of 4th, 5th, 6th grade in Seoul. The subjects were asked to report the rural activity frequencies in recent three years. And the emotion intelligence was assessed by EI Test for Korea Students(Moon, 1996). The major findings of this study were as follows : 33.1% of the subjects have participated in rural activity 1 ~ 2 times, 22.7% of the subjects have participated in rural activity 3 ~ 5 times, 23.8% of the subjects have participated in rural activity more than 6 times. And 20.4% of the subjects were have never participated in rural activity. Gender and age were found to be significant factors on EI. Females demonstrated higher EI than males. The 4th grade students demonstrated higher emotional utilization among sub-abilities of EI than the other two grades students. Rural activity frequency also found to be a significant factor on EI. The students who have participated in rural activity more than 6 times reported the higher EI than the students who have never participated in rural activity.

대구교대생의 통일에 관한 인식구조와 통일교육

성장환 대구교육대학교 2001 論文集 Vol.36 No.-

하퇴 의지 사용자의 족저압 분포 특성에 관한 연구

김장환,신헌석 한국전문물리치료학회 2001 한국전문물리치료학회지 Vol.8 No.3

The purpose of this study was to compare the static pressure, dynamic pressure, dynamic pressure-time integral, relative impulse, and contact time between the sound lower limb and amputated lower limb in trans-tibial amputee subjects using Parotec system. Seventeen trans-tibial amputee subjects wearing endoskeletal trans-tibial prosthesis voluntarily participated in this study. The results were as follows: 1) In static standing condition, there were significantly higher static pressure in sound lower limb insole sensor of 10, 14, 15, 18, 19, 23, and 24 and in amputated lower limb insole sensor of 9, 12, and 16 (p<.05). 2) In dynamic gait condition, there were significantly higher dynamic pressure in sound lower limb insole sensor of 2, 18, 22, 23, and 24 and in amputated lower limb insole sensor of 5, 9, 10, 11, 12, 14, 15, and 16 (p<.05), 3) In dynamic gait condition, there were significantly higher pressure-time integral in sound lower limb insole sensor of 2, 4, 18, 19, 20, 21, 23, and 24 and in amputated lower limb insole sensor of 5, 11, 12, and 15 (p<.05). 4) In dynamic gait condition, there were significantly higher relative impulse in sound lower limb insole sensor of 18, 19, 20, 22, 23, and 24 and in amputated lower limb insole sensor of 5, 9, 10, 11, 12, and 15 (p<.05). 5) In dynamic gait condition, there was significantly higher percentage of contact time in push off phase of sound lower limb and in support phase of amputated lower limb (p<.05). These results suggest that trans-tibial amputee subjects had characteristics of shortened push off phase due to unutilized forefoot and of lengthened support Phase with higher pressure in the midfoot.

한국인 및 중국 한족 정신분열병 환자의 5-HT2A 수용체 유전자 -1438A/G 다형성

이장호,이광철,이승부,오용인,최영근,조아랑,정주호,장환일 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.1

Objectives : The purpose of the present study was to investigate the association between -1438A/G polymorphism of 5-HT2A receptor gene and schizophrenia in Korean and Han Chinese population. Methods : A sample of 184 Korean patients with schizophrenia and 96 Korean healthy normal controls and 96 Han Chinese patients with schizophrenia and 96 Han-Chinese healthy normal controls were genotyped for a single nucleotide polymorphism with in 5-HT2A receptor gene (promoter region, A-1438G) by Msp I Resthction Fragment Length Polymorphism (RFLP). Results : There was no difference in allelic frequencies and genotype frequencies of -1438A/G polymorphism between Korean schizophrenics and controls (p=0.13) and Han Chinese schizophrenics and controls (p=0.40). Also, -1438A/G Poly-morphism did not show ethnical difference between Korean and Han Chinese controls. The Scale for the Assessment of Negative Symptoms (SANS) scores showed no significant differences between genotypes of -1438A/G polymorphism in both of Korean and Han Chinese schizophrenics. Conclusion : These results suggest that -1438A/G polymorphism of the 5-HT2A receptor gene is not causally related to the development of schizophrenia in Korean and Han Chinese population, and there no ethnic difference between Korean and Han Chinese population.