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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.
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.
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.
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).
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.
서중조건하에서의 콘크리트 충전 강관 기둥의 시공을 위한 실험적 연구
이장환,강용학,정근호,김진호,최문식,정상진 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)
The basic Physical properties, Slump, Slump flow, Air content, Bleeding, and Settlement of concrete was investigated to test Characteristic of Setting and to evaluate the relation between Model specimen and Heat of hydration for construction Over the High Temperature(CFT). The objective of this study is to take the partial core after the cementation of Model specimen, test the compression intensity and analyze the relation to Test piece.
정장표,김상렬,장영환,이승훈 경성대학교 공학기술연구소 1999 공학기술연구지 Vol.6 No.-
Environmental confliction among Northeast Asia region is increasing because of trans-boundary atmospheric pollution problems. Therefore, We need proper control and management plan based on the expect estimation of inflow and outflow of long-range air pollutants in order to reduce the influence and the international confliction among the Asia nations. According to the prior studies on trans-boundary air pollution phenomena. It is necessary to evaluate the characteristics and levels of background concentration of trans-boundary air pollutants. Therefore, this study was focused on the background concentration characteristics of ?? and some ionic and gaseous phase materials, sampled at Dongback sum in Pusan using 3 stage filter pack. And meteorological factors were measured anal analyzed to evaluate the relationship between the concentration characteristic and meteorological data. From this study, it was obtained that the total average ?? mass concentration were 32.54±6.42㎍/㎡, and the average concentration of ion phase components in PM? were 6.02(??), 2.65(??), 1.34(??), 2.99(??), 0.33(??), 0.63(??), 0.03(??) and 0.16(??), respectively and the average concentration of gas phase components in PM? were 0.48(HNO₃), 0.46(HCl), 0.34(SO₂), and 0.06(HF), respectively. The components measured high correlation coefficient were ??(0.71, 0.84), ??(0.74, 0.88), ??(0.76, 0.77), and ??(0.996, 0.81), respectively.
成章煥 慶北大學校 東洋文化硏究所 1984 東洋文化硏究 Vol.11 No.-
The purpose of this paper is to explain the meaning of nationalism, the ideological characteristics of nationalism and the prospect of nationalism. Nationalism generally means an ideology or a movement which people conscious of nation intend to pursue the unification, independence and development. To analyze whether nationalism is an ideology or not, the meaning of ideology and the ideological characteristics of nationalism are examined. As a result of analysis, it is proved that nationalism is an ideology. Finally, this study suggests that nationalism be continuously emphasized without weakness as long as nations exist.