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      • KCI등재

        黃連湯이 CCl4로 유도된 간중독 흰쥐에 미치는 영향

        高元島,朴賢俊,尹炳局,鄭成伊,朴宣東 대한본초학회 1999 大韓本草學會誌 Vol.14 No.2

        The purpose of this study is to observe the effects of Hwanglyuntang on serum reactions of CCI₄ treated rats. In this study the experimental rats were divided five groups(Normal, Control, Sample A, Sample B and Sample C). Under the same condition Normal group was fed basal diet and water, the Control group was injected with carbon tetrachloride(CCI₄, 0.5㎖/㎏) and fed a basal diet for 2 weeks, the Sample A group was injected with carbon tetrachloride(CCI₄, 0.5㎖/㎏) and fed the Hwanglyuntang extract(10㎖/㎏) for 2 weeks, the Sample B group was fed the Hwanglyuntang extract(10㎖/㎏) for 2 weeks and injected with carbon tetrachloride(CCI₄, 0.5㎖/㎏), the Sample C group was fed on the Hwanglyuntang extract(10㎖/㎏) for 2 weeks. The change in GOT, GPT, γ-GPT, ALP, LDH activity and Bilirubin level in blood serum were preasured. The obtained results are summarized as follows : It was found that GOT, GPT, γ-GPT, ALP LDH activity and Bilirubin levels in the blood serum of the sample groups, as compared with control group, sample group was significantly decreased.

      • 국부의치 Framework용 비귀금속 합금의 경도에 관한 연구

        金在道,金炳植 대구산업정보대학 1997 논문집 Vol.11 No.2

        The hardness of four kinds of cr-co alloys and one kind of Titanium alloy, which are widely used as partial denture framework these days, were measured and the following result were obtained. The tested alloys of cr-co alloy are Vitallium alloy (AUSTENNAL Co., U.S.A), and Biosil alloy (DEGUSSA Co., GERMANY), and Wironium extra-hard alloy (BEGO Co., GERMANY), and Ticonium alloy (TICONIUM Co., U.S.A), and Titanium alloy are pure titanium. (OHARA Co., JAPAN). 1. The cr-co alloy showed higher value (331.46±2.73Hv-376.74±2.34Hv) (RHN-30N : about 53.72-57.88) than the pure titanium alloy one (211.76 ± 11.2Hv) (RHN-30N value : about 36.66). 2. The hardness value (376.74+2.34Hv) (RHN-30N : 57.88) of experimental Ⅱ alloy was the highest. 3. The hardness value (211.76±11.2Hv) (RHN-30N : 36.66) of experimental Ⅴ alloy was the lowest. 4. These results suggested that the method of bench cooling was more effective.

      • CWM 연료의 연소 및 환경 특성 연구

        정진도,이재원,유병구 忠南大學校 産業技術硏究所 1995 산업기술연구논문집 Vol.10 No.2

        Basic combustion mechanism of CWM(Coal Water Mixture) together with the chemical properties of the coal used in the experiment were studied. Temperature distribution, combustion efficiency and exhaust gas characteristics were investigated, by using the boiler as capacity of 3.5ton/hr with variation of excess air and boiler loading. Further, it was found that conbustion regions of volatile matter and fixed carbon were divided clearly. And furnace temperature varied with boiler loading and excess air. When the boiler load was 40-60%, the maximum combustion efficiency up to 95-98% was obtained for all the coals fired in this study. The pollutant emission characteristics of exhaust gas was also favorable.

      • 국부의치용 금속인 Ni-Cr alloy와 Co-Cr alloy의 주조후 냉각방법에 따른 표면조직과 경도의 비교 연구

        김재도,김병식,김주원 대구산업정보대학 2002 논문집 Vol.16 No.-

        The purpose of this study was to investigate the relationship between the micro-structure and hardness of Ni-Cr alloy(Talladium™ alloy) and Co-Cr alloy(Wironium^(?) extra-hard alloy), which are widely used as partial denture frame work these days, depending on the cooling method, followed by casting. The frist group was bench cooled at room temperature(20℃), the second group was slowly cooled in the furnace from 700t to room temperature, and third, rapidly cooled in 20~22℃ water. The micro-structures of each specimen were compared by means of photomicrograph taken by metallurgical microscope. In addition to the physical characteristics of each specimen were obtained using the Rockwell C Scale. The results were obtained as follows: 1) The hardness value of Talladium™ alloy appeared higher than the Wironium^(?) alloy. 2) The hardness value of the slow cooling method(in the furnace) appeared higher the than the bench cooling method, water cooling method. 3) The grain particle in the slowly cooled alloy were much finer than the bench cooling method, water cooling method. 4) In the cooling method of Talladium™ alloy and Wironium^(?) alloy for partial denture the slow cooling method was considered more profitable than the bench cooling method, water cooling method.

      • 텍스트성의 수단들

        장병도 동아대학교 어학연구소 1994 언어와 언어교육 Vol.9 No.-

        Die zentrale Kern der Textlinguistik ist die Koharenz eines Textes, d.h. Textualitat. Die vorliegende Arbeit bestatigt sich mit ihrem Problem. Die Kriterien der textualitat sind textgrammatische und textpragmatische Ebene. Als die erste entscheidende Analysekategorie der text grammatischen Ebene wird die grammatische Koharenz angesehen, die auf den syntaktischen und sematischen VerKnupfungsbeziehungen zwischen den Satzen des Textes beruht. Die textgrammatische Koharenz wird durch die Mittel wie (pro-)nominale Rekurrenz, Paraphrase, Ellipse und Pro-Formen hergestellt. Die zweite Analysekategorie ist die text pragmatische Ebene, die sich auf den Handlungscharakter des Textes beruht, d.h. auf seine Bedeutung in der Kommunikativen Beziehung zwischen Emittent und Rezipient. Die pragmatische Koharenz wird durch Intentionalitat, Akzeptabilitat und Situationalitat hergestellt. Sie wird von den Emittenten intendiert, von den Rezipienten erwartet und im Prozeß des Textverstehens Außerungsfolgen zuschrieben. Also muß Der Koharenzbegriff bis zur entscheidenden kommunikativen Dimension erweitert werden.

      • 유압 인버터 엘리베이터에서의 극저속 속도제어를 위한 퍼지논리 제어기의 설계

        한권상,김병화,이우철,장태호,이건학,사공석진,안현식,김도현 대한전자공학회 1999 夏季綜合學術大會 論文集 Vol.22 No.1

        In this paper, a fuzzy logic controller is designed for speed control of a hydraulic inverter elevator. Mathematical modeling of an elevator actuated with hydraulic system is presented and the friction characteristics of a cylinder is examined, which may cause the abrupt increase of the acceleration in the zero-crossing speed region. Simulation results show that the proposed fuzzy logic speed controller yields a better control performance than conventional PID controller.

      • 유압식 인버터 제어기의 속도제어를 위한 퍼지기반 하이브리드 슬라이딩모드 제어기 설계

        한권상,최병욱,안현식,김도현 제어·자동화·시스템공학회 2003 제어·자동화·시스템공학논문지 Vol.9 No.3

        19세기 西進東漸의 파도 속에서 국가의 자립과 근대화를 위해 몸소 힘썼던 兪吉潛과 福澤??論의 사상 가운데 그들의 政淪論을 한국과 일본의 근대화 방향 차이를 중심으로 살펴보고자 한다. Due to the friction characteristics of pump, cylinder packing and passenger car, in the elevation system actuated with hydraulic inverter, there exist dead zones, which cannot be controlled by a PID controller. To overcome the drawbacks, in this paper, we propose a new hybrid fuzzy-sliding mode control scheme, which controls the controller output between a sliding mode control output and a PID control output by fuzzy control method. The proposed hybrid control scheme achieves an improved control performance by using both controllers: We first propose a design method of the hybrid controller for a hydraulic system controlled by inverters, then propose a design method of a hybrid fuzzy-sliding mode control scheme. The effectiveness of the proposed control scheme is shown by simulation results, in which the proposed hybrid control method yields better control performance then the PID controlled scheme, not only in the zero-crossing speed region but also in the overall control region including steady-state region.

      • KCI등재

        정신분열증 환자군에서 낮병원 치료가 경각심과 정신운동기능에 미치는 영향에 대한 예비 연구

        오태성,김도훈,오병훈,현명호,유계준 大韓神經精神醫學會 1996 신경정신의학 Vol.35 No.6

        Objectives : The aim of study is to compare the neuropsychological function changes between day hospital schizophrenic patients and out patient schizophrenic patients and to examine the effect of day hospital program on the cognitive function of schizophrenics. Methods : Neuropsychological test was done two times at discharge and 2 months later in 11 day hospital schizophrenic patients and 10 out patient schizophrenic patients by DSM-Ⅳ criteria. Vigilance, motor performance series are used as a computerized neuropsychological batteries. Results : Day hospital patients have significantly increased performance in some of motor performance series test items, but sustained attention have no tendency for increasing in day hospital patients. Conclusion : This results are preliminary. But this study suggest that psychomotor function of schizophrenics can be changed following day hospital treatment. And also we suggest that further day hospital treatment program expecially including congnitive rehabilitation needed.

      • 버들치(Rhynchocypris oxycephalus)의 vitellogenin 생성량 측정을 이용한 수중 estrogen휴 화합물의 정량분석법에 관한 연구

        김을환,이도부,한상훈,윤병수 경기대학교 부설 기초과학연구소 2005 경기대학교 기초과학논문집 Vol.18 No.1

        Vitellogenin(Vtg), a phospholipoglycoprotein precursor of egg yolk, is synthesized and secreted from the liver in response to estrogens in female fish. Vtg is normally undetectable in the blood of male fish, but can be induced by exposure to chemicals possessing estrogenic activity. Thus, the presence of Vtg in blood of male fish can serve as a useful biomarker for assessing previous exposure to estrogenic compounds. In the present study, Vtg was abnormally expressed in Rhynchocypris oxycephalus treatment of Estradiol Benzoate (E_(2)). As the result, it was found that the level of Vtg in blood from R. oxycephalus was increased by treated quantity of E_(2) with dose-effect manner.

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