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        검색결과 4,611

        1901.
        2009.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구는 경기도 고양시와 김포시 인근의 한강하구지역에 도래하여 월동하는 재두루미의 도래 및 취식지역 이용현황, 잠재식이물, 주간 일주행동 그리고 방해요인에 대한 조사를 통하여 이 지역 재두루미의 월동생태에 대한 기초자료 구축과 지속적인 서식을 위한 보전방안을 마련하기 위하여 실시하였다. 재두루미는 본 지역에서 2월 중순에 최대개체수인 162개체가 확인되었고, 3월 중순에 모두 번식지역으로 이동하였다. 월동기간 동안 한강 주변 김포시와 고양시의 농경지역
        4,000원
        1902.
        2009.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study attempted to compare the litter decomposition rate of Arundinella hirta and Miscanthus sinensis var. purpurascens which collected from serpentine soil acting potentially toxic concentration of heavy metals and non-serpentine soil by using the m
        4,000원
        1903.
        2009.12 KCI 등재후보 구독 인증기관 무료, 개인회원 유료
        In this study, catalytic decomposition of chlorobenzene, a model compound of dioxin, was investigated. Catalysts made of a mesoporous material SBA-15 were used. The effect of Pt impregnation on the catalytic activity was evaluated. The catalysts were characterized using BET and NH3-TPD. The catalytic activity for chlorobenzene removal reaction was shown to increase with the acid amount of catalysts. Addition of Pt to Al-SBA-15 was also shown to enhance the catalytic activity.
        4,000원
        1905.
        2009.12 KCI 등재후보 구독 인증기관 무료, 개인회원 유료
        In this study, toluene catalytic oxidation was investigated using various metal components (Cu, Ce, Ni, La and Zr) supported on Used FCC zeolite for the application of the waste recycling and odor reduction. Among the metals, 5 wt% Cu/zeolite showed the best catalytic activity. 100 % conversion was achieved at 300℃ which was 50℃ lower than that of other metal components. As increasing the amount of doped Cu, the CuO was formed and the surface area and pore size were decreased. By the reduction treatment before toluene oxidation, the catalytic activity of the oxidation below 250℃ was improved. No decrease of conversion was observed during the continuos reaction at 300℃ for 48 h.
        4,000원
        1907.
        2009.12 구독 인증기관 무료, 개인회원 유료
        Objective : After arranged and estimated the result of Oriental Medical Health Examination Program, considered the way of improvement and how Oriental Medicine participate in industrial health service. Results : As a point at issue of occidental medicine examination, followings have been indicated, 1) Occidental medical examination is performed by mainly test and instrument and therefore, role of doctors could be excluded and it could be diagnosed only for target disease and 2) in Korea, it could not be conducted in public medical system and therefore improvement effect of public health promotion could not be made due to increase of total medical expenses and infirmity of post management. These points are substantial limit of paradigm resided in occidental medicine and also problem caused by unique characteristics of medical system of Korea. Conclusion : According to the estimate of present special health examination for workers, it seems that special health examination forworkers is a way of specializing the purpose of special health examination and searching the group that needs a special mediation for promoting the health and preventing the disease as a part of industrial health service that needs a connection with other industrial health service. A program replaced by the health effect-oriented methods that limits the purpose of special health examination be studied. After understood the potential health disorder of workers according to where they are exposed to, it also should be contained items for the disease which can be examined in health examination.
        5,100원
        1908.
        2009.12 KCI 등재 구독 인증기관·개인회원 무료
        주로 리그닌을 분해하여 나무에 기생하는 백색부후균은 순수분리 및 균사체배양이 비교적 쉽게 이루어지며, 각종 난 분해성 물질을 비특이적으로 분해할 수 있는 특성 갖고 있다. 이러한 특성을 산업적으로 활용하고자 19종 22균주에 대하 여 Congo Red 등 5종의 염료에 따른 탈색율을 비교한 결과 를 보고하고자 한다. 기본배지 PDB는 pH 4.8~5.0, YPL배 지는 pH5.7~5.9로 염료종류별 차이는 없었고, PDB배지에 첨가한 염료종류별 탈색율은 Congo Red와 Bromophenol Blue에서 우수하였고, YPL배지의 경우는Congo Red, Methylene Blue, Bromophenol Blue에서 우수하여 YPL을 기본배지로 사용하는 것이 보다 광범위한 염료를 분해 할 수 있었다. 다양한 염료에서 탈색율이 우수한 유관버섯 등 3종 을 선발하였으며 앞으로 한계염료농도구명 및 산업적 활용 을 위한 계속적인 연구를 추진할 계획이다.
        1909.
        2009.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Desorption characteristics of waste activated carbons collected from chemicals manufacturing industries in Shiwha/Banwal industrial complex were investigated. Activated carbons were decomposed in a thermogravimetric analyzer (TGA) at 513K with heating rate of 10 ℃/min under nitrogen atmosphere. Activation energies and reaction orders for desorption, from the waste activated carbon were estimated by employing Friedman method and Freeman-Carroll method. It was found that the reaction orders of desorption in waste activated carbons were 0.27-1.69, and activation energies were 15.2-45.7 kJ/mol in Friedman method and 13.7-17.1 kJ/mol in Freeman-Carroll method.
        4,000원
        1910.
        2009.12 구독 인증기관 무료, 개인회원 유료
        The topic of this study is the translation of [Byun Jeung Rok vol.V(辨證錄四卷)]. Byun Jeung Rok is a complete book of medicine which was written by Jin Sa tak(陳士鐸) in the early years of the Ching dynasty. Of this, the fourth volume is composed of 12 disease-patterns(病症) and 54 subtopics. Byun Jeung Rok(辨證錄), as a book that completely organized the medical knowhow of the Ming Dynasty, explains disease-patterns(病症) through the unique and outstanding perspective of the individual author. This topic was studied in hopes of helping later students by showing to the world, through its translation, the author's understanding of disease pattern. The organized characteristics of [Byun Jeung Rok vol.V(辨證錄四卷)] is as follows. 1. For each symptom, the state, cause and prescription for the disease was explained in detail. It was written primarily based on experience. Because the explanations are clear, it is easy to understand. 2. The theory and actual application of Yin yang and five phases is amazing. The actual cause and actual treatment was indicated clearly. 3. In relation to physiology and pathology, the relation between the liver and gall bladder in the middle(between the heart and kidney). In relation to treatment, the tonifying method was never excluded.
        13,400원
        1911.
        2009.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 논문에서는, 3D 데이터 모델링 및 편집 소프트웨어를 통해 만들어진 3D 게임 콘텐츠 의상 데이터의 저작권을 보호하기 위한 3D 메시 워터마킹 기법을 제안하고, 실제 의류 데이터에 워터마크를 삽입한 결과를 보였다. 본 논문에 서 제안된 워터마킹 방식은 공격에 견고함을 갖추기 위해 메시 영역을 몇 개의 패치로 분할하는 과정을 거치며, 데이터의 스펙트럼 계수를 수정함으로써 워터마크를 삽입하는 주파수 도메인 워터마킹 방식을 채택한다. 스펙트럼 분석은 키르히호프 행렬을 이용하며, 잡음 첨가에 대한 저항을 높이기 위해 워터마크 데이터 비트 벡터를 반복하여 삽입한다. 메시스무싱 등의 유사변환 공격에도 안정된 워터마크 추출결과를 확인할 수 있었다.
        4,000원
        1913.
        2009.12 구독 인증기관 무료, 개인회원 유료
        Byun Jeung Ok Ham, written by Jin Sa Tak(1627~1707, won gong, penname ju hwa ja) is composed of four books. this book is estimated of being written after A.D 1688 and composed of internal medicine, obstetrics and gynecology, ophthalmology, dental surgery and so on, total 36 parts of clinical medicine. This is the first book of that four studying about definition on eum yang of 31 diseases. 31 subjects follow, attack by wind and cold(傷風傷寒), paralysis(中風), vomiting(吐症), diarrhea(瀉症), malaria(瘧疾), dysentery(痢疾), epilepsy(癲狂), cough(咳嗽), constipation and urinal impossibility(大小便閉), heartache(心痛), abdominal pain(腹痛), headache(頭痛), eye disease(目痛), tonsillitis(雙蛾), tumor(癰瘡), exhaustion(脫症), perspiration(汗症), congestion(痰症), swelling(腫脹), heatstroke(暑症), asthma(喘症), evil influence(中邪), hematemesis(吐血), wet dream(夢遺), pyrosis(呑酸), backache(腰痛), intestinal convulsion(霍亂). childbirth(生産), hard labor(小産), after delivery(産後), sterility(子嗣). this treatise is the first book of four which deals with eum yang(陰陽) translating into korean and studying about medical theories. In every parts, author's unique clinical theory appears affluently and in that periods his study developmented a lot in those days' medical methods. second book is weaknessand strongness,third upper and low, fourth truth and untruth. first book, Jin Sa Tak says studying on eum yang is oriental medical basic theory and on incurable diseases or chronic symptoms, doctor must go back to that eumyang demonstration after can cure patients. second parts are on weakness and strongness demonstration, that weakness is weakness of patients' energy and strongness is prosperous condition of diseases' attack. third parts are on upper and low, that upper is upper parts of human body of painful parts and low is human low parts of pain, that is parts of under waist. fourth parts are truth and untruth, true symptoms and untrue symptoms, that is the real reaction of human condition and the other way. every prescriptions are author's creations. this book provides new viewpoints which surpasses original ancient medical theories. author suggests new opinions about chronic and incurable diseases. prescrisptions were made of following correct theory of gun sin jua sa theory (君臣佐使) and promoted levels of clinical methods. this treatise refers to dong ui bo gam(東醫寶鑑), huang je nei gyung(黃帝內經), sang han lon(傷寒論), ui hak yip mun(醫學入門) and modern physiology and pathology.
        14,900원
        1914.
        2009.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Mg-Cu composites were successively fabricated using a combination of rapid solidification and extrusion processes. In addition, the microstructural variation of the composite was investigated by performing the extrusion repeatedly. It resulted that the composite formed an uniform and dense structure by the extrusion, and the microstructure became fine as the extrusion conducted repeatedly. The microstructural variation was known to be dependent on the number of extrusion and the area reduction ratio. The tensile strength was also measured as a function of the microstructural variation.
        3,000원
        1915.
        2009.11 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        Fe powders with elongated and aggregated structure as heat pellet material for thermal battery applications were prepared by spray pyrolysis under various preparation conditions. The precursor powders with spherical shapes and hollow morphologies turned into Fe powders after reduction at a temperature of 615˚C under 20% H2/Ar gas. The powders had pure Fe crystal structures irrespective of the preparation conditions of the precursor powders in the spray pyrolysis. The morphologies and mean sizes of the Fe powders are affected by the preparation conditions of the precursor powders in the spray pyrolysis. Therefore, the ignition sensitivities and the burn rates of the heat pellets formed from the Fe powders prepared by spray pyrolysis are affected by the preparations of the precursor powders. The Fe powders prepared under the optimum preparation conditions have a BET surface area of 2.9 m2g1. The heat pellets prepared from the Fe powders with elongated and aggregated structure have a good ignition sensitivity of 1.1W and a high burn rate of 18 cms1.
        4,000원
        1916.
        2009.11 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study examined the maturation and main spawning season of Japanese spear lobsters, Linuparus tirgonus(Von Siebold) captured around Jeju island from January to September, 2008. Carapace length(CL), body weight(BW) and gonad weight(GW) were measured. Gonadosomatic index(GSI) and sex ratio were calculated. In female group, CL showed the highest value in June and decreased after August. GW showed a peak in July and decreased rapidly after August. The mean gonadosomatic Index(GSI) reached a maximum value between June and August. Number of egg ranged from 143,360 to 189,504.
        4,000원