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        • KCI등재

          부산지역 파킨슨병 재활서비스의 현황 및 분석

          김민수,허준호,정대윤,김민지,김도연,전호현,김경민,박수빈,김희영,Kim, Min-Soo,Heo, Jun-Ho,Jung, Dae-Youn,Kim, Min-Ji,Kim, Do-Yeon,Jeon, Ho-Hyeon,Kim, Kyung-Min,Park, Su-Bin,Kim, Hee-Young 대한고유수용성신경근촉진법학회 2020 PNF and Movement Vol.18 No.1

          Purpose: This study aimed to investigate the current and future status of Parkinson's disease rehabilitation service in Busan. Methods: A literature search of domestic journals was conducted using the keywords "Parkinson's", "exercise", "rehabilitation", and "physical therapy". The chosen databases were Research Information Sharing Service (RISS), e-articles, and Korean studies Information Service System (KISS). International literature was searched in PubMed, Pedro, DOI, Publisher, CINAHL (EBSCOhost), and PsycINFO using the same combination of keywords. Results: The results of this study showed that 33 medical institutions provide Parkinson's disease rehabilitation service and five do not. Regarding the composition of Parkinson's disease rehabilitation teams, 15 medical institutions provide physical therapy, occupational therapy, and speech therapy as their rehabilitation program, 15 medical institutions provide physical therapy and occupational therapy, and three provide only physical therapy. The study found that muscle-strengthening, flexibility, endurance, and balance exercises were commonly provided in all 33 medical institutions for Parkinson's disease. Additional exercises were provided in only three medical institutions. The frequency was five times a week in 20 medical institutions. Conclusion: Medical institutions located in Busan provide a variety of Parkinson's disease rehabilitation services, not only in general hospitals but also in multiple medical institutions, although the composition of their Parkinson's disease rehabilitation teams and the frequency of treatment vary.

        • KCI등재

          스핀코팅 방법으로 제작된 ZnO 나노 섬유질 박막의 전구체 농도에 따른 표면 및 광학적 특성

          김민수,김군식,임광국,조민영,전수민,최현영,이동율,김진수,김종수,이주인,임재영,Kim, Min-Su,Kim, Ghun-Sik,Yim, Kwang-Gug,Cho, Min-Young,Jeon, Su-Min,Choi, Hyun-Young,Lee, Dong-Yul,Kim, Jin-Soo,Kim, Jong-Su,Lee, Joo-In,Leem, Jae-Young 한국진공학회 2010 Applied Science and Convergence Technology Vol.19 No.6

          ZnO nano-fibrous thin films with various precursor concentrations ranging from 0.2 to 1.0 mol (M) were grown by spin-coating method and effects of the precursor concentration on surface and optical properties of the ZnO nano-ribrous thin films were investigated by using scanning electron microscopy (SEM) and photoluminescence (PL). ZnO nuclei were formed at the precursor concentration below 0.4 M and the ZnO nano-fibrous thin films were grown at the precursor concentration above 0.6 M. Further increase in the precursor concentration, the thickness of the ZnO nano-fibrous thin films is gradually increased. The intensity and the full-width at half-maximum (FWHM) of the near-band-edge emission (NBE) is increased as the precursor concentration is increased. The deep-level emission (DLE) is red-shifted as the precursor concentration is increased. 스핀코팅 방법을 이용하여 다양한 농도의 전구체로 ZnO 나노 섬유질 박막(ZnO nano-fibrous thin films)을 성장하였고, 그에 따른 표면 및 광학적 특성 변화를 scanning electron microscopy (SEM)와 photoluminescence (PL)을 이용하여 측정하였다. 전구체 농도가 0.4 mol (M) 이하 일 때는 성장률이 낮아 ZnO 핵생성만이 되었고, 0.6 M 이상일 때 ZnO 박막은 나노섬유질 구조가 되었다. 전구체 농도가 더욱 증가함에 따라 ZnO 나노 섬유질의 굵기가 굵어졌고 ZnO 박막의 두께도 단계적으로 두꺼워졌다. 전구체 농도가 증가함에 따라 ZnO 나노 섬유질 박막의 photoluminescence (PL)의 근밴드가장자리 광방출(near-band-edge emission) 피크 세기와 full-width at half-maximu (FWHM)이 증가하였고, 깊은 준위 광방출(deep-level mission) 피크는 적색편이(red-shift)하였다.

        • SCOPUSKCI등재

          증례 : 정상면역을 가진 성인에서 발생한 식도 방선균증 1예

          김현수 ( Hyun Soo Kim ),천종운 ( Jong Woon Cheon ),김민수 ( Min Su Kim ),정창길 ( Chang Kil Jung ),김경록 ( Kyung Rok Kim ),최재원 ( Jae Won Choi ),강동우 ( Dong Woo Kang ),김선영 ( Sun Young Kim ) 대한소화기학회 2013 대한소화기학회지 Vol.61 No.2

          Hyun Soo Kim, Jong Woon Cheon, Min Su Kim, Chang Kil Jung, Kyung Rok Kim, Jae Won Choi, Dong Woo Kang and Sun Young Kim1 Departments of Internal Medicine and Pathology1, DongKang Medical Center, Ulsan, Korea Actinomycosis is a chronic suppurative disease and caused by Actinomycosis species, principally Actinomyces israelii, which are part of the normal inhabitant on the mucous membrane of the oropharynx, gastrointestinal tract, and urogenital tract. It usually affects cervicofacial, thoracic and abdominal tissue. Cervicofacial type has the highest percentage of occurrence with 50%. Actinomycosis frequently occurs following dental extraction, jaw surgery, chronic infection or poor oral hygiene. It may also be considered as an opportunistic infection in immunocompromised patients such as malignancy, human immunodeficiency virus infection, diabetes mellitus, steroid usage or alcoholism. But, actinomycosis rarely occurs in adults with normal immunity and rare in the esophagus. We report an unusual case of esophageal actinomycosis which was developed in a patient with normal immunity and improved by therapy with intravenous penicillin G followed oral amoxicillin, and we also reviewed the associated literature.

        • KCI등재

          이동형 스크러버를 이용한 암모니아 및 톨루엔의 제거 효율

          김재영 ( Jae-young Kim ),김장윤 ( Jang-yoon Kim ),이연희 ( Yeon Hee Lee ),김민선 ( Min Sun Kim ),김민수 ( Min-su Kim ),김현지 ( Hyun Ji Kim ),류태인 ( Tae In Ryu ),정재형 ( Jae Hyeong Jeong ),황승율 ( Seung-ryul Hwang ),김균 ( Ky 한국환경농학회 2018 한국환경농학회지 Vol.37 No.1

          본 연구는 국내에서 다량 취급되고 있는 암모니아 및 톨루엔을 흄 상태로 노출시킨 후 흡수/흡착방법을 달리한 이동형 스크러버를 이용해 각 유해화학물질의 제거효율을 비교 분석하였다. 이동형 스크러버는 기 개발된 장치를 개선하여 와류세정에 의한 흡수, 유입풍속 조절의 장점을 살리고, 활성탄 및 카본필터를 통한 기체상 유해화학물질의 흡착방법 도입을 통해 단점을 보완하였다. 개선된 장치는 기초성능평가를 통해 적정 제어풍속이 검증되었고, 5% 암모니아수 용액을 흄 상태로 노출시켜 후드 흡입부, 송풍기 배출부 및 세정기가 정상 작동함을 확인하였다. 흡수/흡착방법에 따른 암모니아 제거효율은 90분 경과 후 C≥PCA>SWA 순으로 가장 우수한 SWA 군의 노출 농도별 제거 효율은 시간이 경과할수록 노출 농도와 무관하게 배출 농도는 증가되었고, 세정액의 pH는 산성에서 염기성으로 변화되었다. 또한, 시간 경과에 따른 노출 농도 별 세정액의 pH 변화와 배출구 농도 변화 사이에 0.9429~0.9491 수준의 정의 상관관계를 나타내었다. 흡착방법에 따른 톨루엔의 제거 효율은 초기 10분 경과 후 배출구농도에서 C>CMA≥GCA 순을 나타내다 90분 경과까지 일정한 농도로 유지되었다. 가장 우수한 GCA 군의 노출 농도 별 제거 효율은 초기 10분 경과 시 노출 농도에 비례하여 배출 농도가 높은 경향이었다. 이와 같은 결과를 통해 개선된 이동형 스크러버는 중화반응에 의해 산성 또는 염기성 유해화학물질의 제거뿐 아니라, 활성탄 등의 흡착기능 개선을 통해 VOCs 제거에도 효과적이었다. 하지만, 실제 현장에서 활용이 가능하도록 세정액 pH를 지속적으로 유지하여 연속적으로 흡수 제거할 수 있는 방법과 노출되는 화학물질 농도와 흡착제의 관계에서 파괴점, 포화점, 흡착속도 등의 물리적인 요소가 추가적인 연구를 통해 도출되어야 할 것이다. BACKGROUND: The mobile vortex wet scrubber was developed to remove the harmful chemicals from accidental releases. However, there was a disadvantage that it was limitedly used for volatile organic compounds (VOCs) such as toluene according to the physicochemical properties. This study compared the removal efficiencies of an improved mobile scrubber on toluene and ammonia by applying diverse adsorption and absorption methods. METHODS AND RESULTS: The removal efficiencies on harmful chemicals were examined using various adsorption and absorption methods of water vortex process (C), phosphoric acid-impregnated activated carbon adsorption (PCA), pH-controlled water (pH 2.5) vortex process absorption with sulfuric acid (SWA) after ammonia exposure, granular activated carbon adsorption (GCA), and activated carbon mat adsorption (CMA) after toluene exposure. As a result, the best removal efficiency was shown in the SWA for ammonia and GCA for toluene. Also, the SWA and GCA methods were compared with different concentration levels. In the case of ammonia exposure (5, 10 and 25%), there was no difference by concentration levels, and the concentration in the outlet gradually increased, with pH change from acid to base. In the case of toluene exposure (50, 75 and 100%), the outlet concentration was higher relative to the exposure concentration in the initial 10 min, but the outlet concentration was remained steady after 10 min. CONCLUSION: The newly improved mobile scrubber was also effective in removing VOCs through adsorption techniques (activated carbon, activated carbon fiber, carbon mat filter etc.), as well as removing acid-base harmful chemicals by neutralization reaction.

        • KCI등재

          Electrical Properties of Mg-Doped AlxGa1-xAs Epitaxial Layers Grown by Using Molecular Beam Epitaxy

          김민수,Do Yeob Kim,Tae Hoon Kim,김건식,Hyun Young Choi,Min Young Cho,Su Min Jeon,H. H. Ryu,W. W. Park,김종수,김진수,D. Y. Lee,손정식,J. Y. Leem 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.54 No.2

          Magnesium (Mg)-doped AlxGa1-xAs epitaxial layers were grown by using molecular beam epitaxy (MBE) on (100) GaAs substrates under different growth conditions, such as Mg cell temperature, Al mole fraction, substrate temperature and As/Ga beam equivalent pressure (BEP) ratio. The epitaxially-grown Mg-doped AlxGa1-xAs layers were characterized using Hall measurements to investigate their electrical properties. The carrier concentration of the Al0:13Ga0:87As layers decreased from 1.86 × 1017 × 4.87 × 1014 cm-3 when the substrate temperature was increased. This variance in carrier concentration is attributed to a dramatic decrease in Mg concentration in the III-V epilayers with increasing substrate temperature. The mobility and the carrier concentration of the Mg-doped AlxGa1-xAs layers also depended on the Al mole fraction and As/Ga BEP ratio. Finally, the Hilsum estimates were found to be in good agreement with the experimental points in the extrapolated curve.

        • KCI등재

          보수적 회계처리와 중립적 회계처리가 가치평가오류에 미치는 영향 : 보수적 회계처리 vs 중립적 회계처리

          김민수(Kim, Min-Su),이명건(Lee, Myung-Gun) 한국회계정보학회 2021 재무와회계정보저널 Vol.21 No.1

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          [Purpose] Conservatism in accounting information means recognizing negative information early, and recognizing positive information slowly after satisfying the vesting condition. On the other hand, neutral accounting information means that there is no discrimination between negative and positive information. The aim of this study is to analyze the effects of such conservative and neutral accounting information on valuation errors. [Methodology] This study analyzed companies listed on the KOSPI from 2001 to 2015. The measure of conservatism followed Khan and Watts(2009), and the measure of neutralism was used by taking the absolute value of the measure of conservatism and multiplying it by a negative number. To measure the valuation error, the model suggested in the study of Rhodes-Kropf et al.(2005) was used. [Findings] As a test result, as the tendency of conservatism increases, valuation errors increase, which means that accounting informaiton biased toward negative information is negative in terms of valuation accuracy. On the other hand, the more neutral accounting information is, the less valuation errors are, and it can be interpreted that reporting positive and negative information in a balanced way has a positive effect on the accuracy of valuation. [Implications] In general, conservatism in accounting is considered to reduce investment risk by providing negative information to investors early, but the results of this study show that a report focused on negative information may rather distort the economic situation of a company. [연구목적] 회계정보의 보수주의란 부정적 정보는 조기에 인식하고, 긍정적인 정보는 가득 조건을 만족한 후에 천천히 인식하는 것을 의미한다. 한편 중립적 회계정보는 부정적인 정보와 긍정적인 정보의 인식 시기에 차별을 두지 않는 것을 말하며, 이와 같은 보수적 회계처리와 중립적 회계처리가 가치평가오류에 미치는 영향을 분석한 것이 본 연구의 목표이다. [연구방법] 본 연구는 2001년~2015년 기간에 유가증권시장에 상장된 기업을 대상으로 분석하였다. 보수주의 측정치는 Khan and Watts(2009)를 따랐으며, 중립주의 측정치는 보수주의 측정치에 절대값을 취한 후 음수를 곱하여 활용하였다. 가치평가 오류 측정치는 Rhodes-Kropf et al.(2005) 연구에서 제시된 모델을 사용하였다. [연구결과] 검증결과 보수주의 성향이 증가할수록 가치평가오류가 증가하는 것으로 나타났으며 이는 부정적 정보에 편향된 회계처리가 가치평가 정확도 측면에서 는 부정적임을 의미한다. 반면 중립적인 회계처리를 할수록 가치평가오류는 감소는 하는 것으로 나타났으며 긍정적 정보와 부정적 정보를 균형 있게 보고하는 것이 가치평가의 정확도에 긍정적으로 영향을 미치는 것으로 해석할 수 있다. [연구의 시사점] 일반적으로 보수주의 회계처리가 부정적 정보를 조기에 투자자들에게 제공함으로써 투자위험을 줄이는 것으로 간주되나, 본 연구의 결과는 부정적 정보에 치중한 보고가 오히려 기업의 경제적 실상을 왜곡하여 보고할 가능성이 있음을 시사하였다.

        • KCI등재

          에폭시 접착제의 경화거동 및 접합강도에 미치는 경화촉매제의 영향

          김민수,김해연,유세훈,김종훈,김준기,Kim, Min-Su,Kim, Hae-Yeon,Yoo, Se-Hoon,Kim, Jong-Hoon,Kim, Jun-Ki 대한용접접합학회 2011 대한용접·접합학회지 Vol.29 No.4

          Adhesive bonding is one of the most promising joining methods which may substitute for conventional metallurgical joining processes, such as welding, brazing and soldering. Curing behavior and mechanical properties of adhesive joint are largely dependent on the curing agent including hardener and catalyst. In this study, effects of curing system on the curing behavior and single-lap shear strength of epoxy adhesive joint are investigated. Dihydrazide, anhydride and dicyandiamide(DICY) were chosen as hardener and imidazole and triphenylphosphine(TPP) were chosen as catalyst. In curing behavior, TPP showed the delay of the curing rate for DICY and ADH at $160^{\circ}C$, compared to imidazole catalyst due to the high curing onset/peak temperature. DICY seemed to be most beneficial in the joint strength for both steel and Al adherends, although the type of adherends affected the shear strength of epoxy adhesive joint.

        • 가상 트랜잭션을 이용한 시계열 데이터의 데이터 마이닝

          김민수,김철환,김응모,Kim, Min-Su,Kim, Cheol-Hwan,Kim, Eung-Mo 한국정보처리학회 2002 정보처리학회논문지D Vol.9 No.2

          대용량의 데이터들로부터 사용자가 인하는 데이터를 찾기 위하여 많은 데이터 마이닝 기술들이 연구되어 실제 응용프로그램에서 많이 적용되고 있다. 이러한 데이터 마이닝 기술들은 시계열 데이터를 이용하는 경우보다 트랜잭션 데이터를 이용하여 유용한 정보를 찾는 경우에 초점이 맞춰져 있다. 본 논문에서는 시계열 데이터를 트랜잭션 데이터로 변환하는 접근방법을 소개한다. 가상 트랜잭션은 서로 상대적으로 근접한 시간에 발생하는 이벤트의 집합이라고 정의하며, 가상 트랜잭션 생성기는 가상 트랜잭션을 생성시 시간윈도우와 이벤트 윈도우 방법을 사용한다. 본 논문의 접근 방법을 사용하여 기존의 트랜잭션 데이터를 이용하는 많은 데이터 마이닝 알고리즘들을 수정 없이 시계열 데이터에 적용하여 유용한 정보를 찾을 수 있다. There has been much research on data mining techniques for applying more advanced applications. However, most of those techniques has focused on transaction data rather than time series data. In this paper, we introduce a approach to convert time series data into virtual transaction data for more useful data mining applications. A virtual transaction is defined to be a collection of events that occur relatively close to each other. A virtual transaction generator uses time window or event window methods. Our approach based on time series data can be used with most conventional transaction algorithms without further modification.

        • KCI등재

          이류체 노즐을 이용한 FPD 세정시스템 및 공정 개발

          김민수,김향란,김현태,박진구,Kim, Min-Su,Kim, Hyang-Ran,Kim, Hyun-Tae,Park, Jin-Goo 한국재료학회 2014 한국재료학회지 Vol.24 No.8

          As the fabrication technology used in FPDs(flat-panel displays) advances, the size of these panels is increasing and the pattern size is decreasing to the um range. Accordingly, a cleaning process during the FPD fabrication process is becoming more important to prevent yield reductions. The purpose of this study is to develop a FPD cleaning system and a cleaning process using a two-phase flow. The FPD cleaning system consists of two parts, one being a cleaning part which includes a two-phase flow nozzle, and the other being a drying part which includes an air-knife and a halogen lamp. To evaluate the particle removal efficiency by means of two-phase flow cleaning, silica particles $1.5{\mu}m$ in size were contaminated onto a six-inch silicon wafer and a four-inch glass wafer. We conducted cleaning processes under various conditions, i.e., DI water and nitrogen gas at different pressures, using a two-phase-flow nozzle with a gap distance between the nozzle and the substrate. The drying efficiency was also tested using the air-knife with a change in the gap distance between the air-knife and the substrate to remove the DI water which remained on the substrate after the two-phase-flow cleaning process. We obtained high efficiency in terms of particle removal as well as good drying efficiency through the optimized conditions of the two-phase-flow cleaning and air-knife processes.

        • KCI등재

          Novel circulatory connection from the acupoint Zhong Wan(CV12) to pancreas

          김민수,성백경,최천주,김민수,강대인,소광섭,Kim, Min-Soo,Sung, Baeck-Kyoung,Ogay, Vyacheslav,Choi, Chun-Ju,Kim, Min-Su,Kang, Dae-In,Soh, Kwang-Sup KOREAN PHARMACOPUNCTURE INSTITUTE 2008 Journal of pharmacopuncture Vol.11 No.1

          Objectives : Demonstrating a novel circulatory path from the acupoint(CV12) to the pancreas. Method : Alcian blue(1% solution, $20{\mu}l$, pH 7.4) was injected into the acupoint(CV12). Two hours later the surfaces of internal organs were observed by using a stereomicroscope. Results : Alcian blue arrived and colored the omental fat band(OFB) on the pancreas. The OFB connected the head and tail of the pancreas, the pancreas and the spleen, and the pancreas and the stomach. Conclusion : The existence of a novel circulatory path from the acupoint CV12 to the pancreas and its OFB was demonstrated. 목적 : 피부의 경혈(CV12)로부터 췌장으로 액체가 흘러가는 경로가 있음을 보임. 방법 : 생쥐의 중완혈에 푸른색 염료(Alcian blue) 1% 용액을 주입하고, 2시간이 경과한 후 개복하여 내장장기의 표면들을 실체 현미경으로 관찰한다. 결과 : 췌장 위에 있으며, 췌장의 머리부분과 꼬리부분, 췌장과 위장, 췌장과 비장을 연결해주는 망막상의 지방줄(omental fat band)에 Alcian blue가 도달, 착색되었다. 결론 : 중완혈로부터 췌장을 경과하여 망막상의 지방줄에 이르는 액체 순환경로가 있다.

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