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        • MCFC용 Steam Reformer 개질성능 분석 및 운전평가

          서혜경,고준호,임희천,Seo, Hai-Kung,Koh, Joon-Ho,Lim, Hee-Chun 한국수소및신에너지학회 2000 국제학술대회 Vol.11 No.4

          This paper is concerned with the performence of a steam reformer for 25kW class MCFC, which is compared with the theoretically calculated results at various operating conditions. The theoretical $H_2$ production amount and $CH_4$ conversion rate are calculated with variations of temperature and steam/carbon (S/C) ratio using fortran program, and the actual values are measured from flowmeter and gas chromatography. As a result of the comparison of theoretical and actual values, the theoretical $H_2$ production amount is calculated by $24.4m^3/hr$ at the normal operating condition(LNG $9m^3/hr$, S/C ratio 5, absolute pressure $2.77kg/cm^2$, $610^{\circ}C$), but the actual production amount is only $19.4m^3/hr$, which is 79.5% of the theoretical value. Nevertheless, at the normal operating condition, the reformer for 25kW class MCFC performed well for a 2,100 hr long run operation, constantly producing $H_2$.

        • KCI등재

          우리나라 젓갈의 지역성 연구(2) : 젓갈의 담금법 The ways of preservation of chotkal

          서혜경 한국식생활문화학회 1987 韓國食生活文化學會誌 Vol.2 No.2

          발효 원리에 의한 젓갈 담금법은 크게 젓과 식해로 구분된다. 젓은 9가지로 ① 소금, ② 소금·고추가루, ③ 소금·익힌 곡류, ④ 소금·고추가루·곡류, ⑤ 소금·메주가루, ⑥ 소금·누룩가루·콩가루, ⑦ 간장, ⑧ 젓갈, ⑨ 소금물 등에 담그는 것이다. 식해는 14가지로 ① 쌀밥·소금·엿기름, ② 쌀밥·소금·엿기름·밀가루, ③ 쌀밥·소금·고추가루·엿기름, ④ 조밥·소금·고추가루·향신료, ⑤ 쌀밥·소금·고추가루·엿기름·향신료, ⑥ 조밥·소금·고추가루·엿기름·무우채·향신료, ⑦ 조밥·소금·고추가루·무우채·향신료, ⑧ 쌀밥·소금·밀가루·고추가루·엿기름(설탕)·(향신료), ⑨ 쌀밥·소금·고추가루·무우채·향신료·엿기름(설탕), ⑩ 찰밥·소금·고추가루·향신료, ⑪ 소금·무우채·고추가루·향신료, ⑫ 찰밥·소금·고추가루·엿기름·향신료, ⑬ 찰밥·소금·고추가루·엿기름·무우채·향신료, ⑭ 밀가루죽·소금·고추가루·엿기름(무우채)·향신료 등으로 담그는 것이다. 젓 담금법의 지역적 특색은 관서지방에서는 갑각류 중 게를 소금물에 담그는 가정이 많았고, 중부지방에서는 부족류 및 복족류 중 굴을 소금·고추가루, 소금·고추가루·익힌 곡류로 어리굴젓을 담그며 남부지방에서는 갑각류 중 민물새우를 소금, 소금·고추가루, 소금·익힌곡류, 소금·고추가루·익힌 곡류로 담그며, 관북지방에서는 어류를 소금·고추가루로 담그는 것을 알 수 있다. 식해 담금법의 지역적 특색은 우리나라의 동부지역에서 담근다. 이것은 동해에서는 사계절 생선을 잡을 수 있으므로 구태여 오래 보존해 둘 필요가 없기 때문이며, 또한 동해안은 소금 생산량이 적기 때문에 소금이 풍부한 서해안에서는 젓이 발달하고, 소금이 부족한 동해안에서는 식해가 발달하게 된 것임을 알 수 있다. 식해 담금법 중 엿기름을 넣어 담그는 곳은 남부지역이고, 무우채를 넣어 담그는 곳은 관북지역이며, 관북지방보다 남부지방에서는 익힌 곡류의 양을 많이 넣는다. 고추가루는 관북·남부 모두 넣으나, 남부지방에서는 제찬용 식해에는 넣지 않는다. 식해에 넣는 곡류의 종류는 그 지역에서 생산이 많이 되는 곡류를 사용한다. The ways of preservation of chotkal which are classified by the principles of fermentation, are analyzed and interpreted. Chotkal is preserved mainly as two forms; one is chot and the other is shikhae. The fact that shikhae is preserved only in the eastern area can be attributed to two main reasons; (1) raw materials are available throughout four seasons and (2) relatively less production of salt. Chotkal is further classified into nine different ways of preservation and shikhae into fourteen. Regional characteristics for chot include that (1) in western part, Kechot is preserved in salty water (2) in central part Origuljot is fermented either with salt and powdered red pepper, or with salt, powdered red pepper and cooked cereal, (3) in southern part, freshwater shrimp with ① salt only, ② salt and powdered red pepper, ③ salt and coked cereal, ④ salt, powdered red pepper and cooked cereal, (4) in northern part, fish with salt and powdered red pepper. Those for shikhae include that malt is used in southern part, shredded radish in northern part and cooked cereal more in southern part than in northern part.

        • KCI등재

          Two-Year Hospital-Wide Surveillance of Central Line-Associated Bloodstream Infections in a Korean Hospital

          서혜경,황주희,신명진,김수영,송경호,김의석,김홍빈 대한의학회 2018 Journal of Korean medical science Vol.33 No.45

          Background: Surveillance and interventions of central line-associated bloodstream infections (CLABSIs) had mainly been targeted in intensive care units (ICUs). Central lines are increasingly used outside ICUs. Therefore, we performed a hospital-wide survey of CLABSIs to evaluate the current status and develop strategies to reduce CLBASI rates. Methods: All hospitalized patients with central venous catheters (CVCs) were screened for CLABSIs from January 2014 through December 2015 at a 1,328 bed tertiary care teaching hospital in Korea using an electronic data-collecting system. Clinical information including type of CVC was collected. CLABSI rates were calculated using the definitions of the National Health and Safety Network after excluding mucosal barrier injury laboratory-confirmed bloodstream infection (BSI). Results: A total of 154 CLABSIs were identified, of which 72 (46.8%) occurred in general wards and 82 (53.2%) in ICUs (0.81 and 2.71 per 1,000 catheter days), respectively. Non- tunneled CVCs were most common (68.6%) among 70 CLABSI events diagnosed within one week of their maintenance. On the other hand, tunneled CVCs and peripherally inserted central catheters (PICCs) were more common (60.5%) among 114 CLABSI events diagnosed more than a week after maintenance. Whereas the majority (72.2%) of CLABSIs in ICUs were associated with non-tunneled CVCs, tunneled CVCs (38.9%) and PICCs (36.8%) were more common in general wards. Conclusion: CLABSIs are less common in general wards than in ICUs, but they are more often associated with long-term indwelling catheters. Therefore, interventions to prevent CLABSIs should be tailored according to the type of ward and type of catheter.

        • 인라인 스케이트 이용자들의 손상 유형과 위험 요인

          서혜경,문지영,성주욱,김말영,이준호,박정이,차성화,백나영,이재민,김수민,임현술,정해관,배근량,정철 東國大學校醫學硏究所 2004 東國醫學 Vol.11 No.2

          지난 몇 년 사이 인라인 스케이트는 젊은층을 중심으로 인기있는 스포츠가 되었으며 이러한 대중화와 더불어 인라인 스케이트와 관련된 사고 빈도도 증가하는 추세이다. 따라서 본 연구는 인라인 스케이트 이용에 따른 사고율과 이용습관 형태, 손상 유형 및 위험 요인을 알아보고자 시행되었다. 2003년 9월 14일부터 9월 24일까지 경주시 ○○초등학교 6학년, ○○중학교 1학년, ○○여자고등학교 1학년, ○○고등학교 1학년, 동국대학교 의과대학 의학과 학생, 경주황성·포항 해맞이 공원의 성인을 포함한 총설문 대상자 1,305명 중 인라인 스케이트 이용자 392명을 대상으로 단면 연구를 수행하였다. 조사에 앞서 병원 방문과 사전 조사를 시행 하였으며 자기 기입식 설문지를 통해 정보를 수집하였다. 초, 중, 고 인라인 스케이트 전체 이용률은 28.1% 사고율은 30.1%로 나왔으며 주로 젊은층에서 사고가 많았으며 나이가 증가할수록 빈도가 증가하였다. 보호 장비 착용률은 44.4%로 조사되었다. 손상 부위로는 무릎과 상지 부위가 많은 것으로 조사되었으며 손상 유형은 찰과상과 타박상이 많았다. 스케이트를 타기 시작한지 1개월 이내에서 사고를 가장 많이 당한 것으로 나타났다. 전체 부상자의 20%가 후유증이 있었던 것으로 나타났다. 본 연구에서 인라인 스케이트 이용자들의 사고율이 비교적 높음을 알 수 있었다. 손상 부위의 무릎 및 상지 집중 현상으로 인해 무릎과 상지 부위의 보호대 착용이 필요할 것으로 생각되며 또한 사고를 줄이기 위해 초기 기술 습득 단계부터 전문가를 통한 체계적 교육과 안전 의식 고양이 필요할 것으로 보인다. In the past several years, Inline skating has become a popular sport among young people. With popularization of Inline skating, the number of injuries has increased proportionately. The purpose of this study is to evaluate the prevalence of injuries, the behaviors of skating, the nature and risk factors of injuries. We conducted a questionnaire an 1,305 subjects from Sep. 14 to 24, 2003. The Inline skaters were 392. These participation were mainly students from ○○elementary school, ○○middle school, ○○women's high school, ○○high school, Dongguk medical school, and adult skaters in several parks. The prevalence of injuries were 30.1%. Injuries were predominant from younger age and frequencies were increased according to increasing age. The most common location of injuries were both knee and the upper extremities. Most of injury type were skin abrasion and contusion. Injuries were highest within one month after First skating. 20% of injuries experienced a sequela. The results of this study show the severity of Inline skating-related injuries. We expect that the knee and the upper extrimities protectors should be used adequatly. Also to reduce injuries, when the skills are obtainded, the specilized learning programs and safety awareness are needed.

        • 아파아트의 세탁및 건조장소에 대한 연구

          서혜경 이화여자대학교 가정대학 가정관리학과 1970 가정관리연구 Vol.- No.1

          It is significant that most of the apartments are lack of suitable space for washing and drying clothes, for that reason, the wrong places such as bathroom, kitchen, balcony, or even corridor has been used for those purpose. Consequently it can be said that all the Korean apartments are not only inconvenient for efficient housekeeping but also it is a blight on our living environment. However Korea is still a developing country and we can not afford to provide washing and drying machine in each apartment. So under this circumstances, it is hoped to find out the possible way to improve this situation. In this study, first, physical conditions are characterized to realize what are the significant problems, and then requirements concerning washing and drying spaces are investigated. Finally some recommandations are proposed as following 1. Even in the minimum standard apartment washing sink should be installed in the bathroom or in the kitchen to improve working efficiency. 2. If possible, seperate washing and drying space which is easily accessible from the kichen and veiled by louver should be provided in each apartment. 3. It is hoped that communal washing and drying space is provided either in the roof or in the basement as far as apartment is concerned.

        • 실천적 문제 중심의 식생활교육

          서혜경,박은숙 한국가정과교육학회 2006 한국가정과교육학회 학술대회 Vol.2006 No.-

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

        • KCI등재

          건식 석탄공급형 1 Ton/Day급 가스화시스템 설계조건 및 시운전결과

          서혜경,정재화,주지선,Seo, Hai-Kyung,Chung, Jae-Hwa,Ju, Ji-Sun 한국수소및신에너지학회 2009 한국수소 및 신에너지학회논문집 Vol.20 No.4

          KEPRI is developing a Korean type coal-gasification system and the scale is 20 ton/day. Prior to this pilot plant, a 1 ton/day class gasification system will be used for pre-testing of several coal types. This paper introduces the configuration and design conditions of this 1 ton/day class system, presenting the gas/coal ratio, oxygen/coal ratio, cold gas efficiency, CFD analysis of gasifier, and others. The existing combustion furnace for residual oil was retrofitted as a coal gasifier and a vertical and down-flow type burner was manufactured. Ash removal is carried out through a water quencher and a scrubber following the quencher, and the sulfur is removed by adsorption in the activated carbon tower. The gas produced from the gasifier is burned at the flare stack. In this paper, the results of design conditions and initial operation conditions of I ton/day gasification system are compared together.

        • KCI등재

          DTaP 접종력이 없는 3개월 미만 영아의 백일해 3례

          서혜경,김혜영,김란희,김성헌,박수은,박희주,이승주,김혜정 대한 소아알레르기 호흡기학회 2011 Allergy Asthma & Respiratory Disease Vol.21 No.1

          Pertussis is a pediatric infectious disease with one of the highest degrees of infectivity. Although pertussis may cause asymptomatic infections in children and adults with immunity, it can cause life-threatening diseases in newborn babies or infants. We report three cases of pertussis in infants ˂3 months of age without DTaP immunization who have received symptomatic treatment with the diagnosis of bronchiolitis from other hospitals, and subsequently correctly diagnosed and treated. The patients did not have the characteristic whooping cough, but the main symptoms were episodic cough, intermittent vomiting, and cyanosis. Based on culture results for Bordetella pertussis and PCR, pertussis was diagnosed and treated without any complications. As it is assumed that adults, adolescents, and asymptomatic patients may serve as sources of infection, immunization with Tdap vaccine is recommended to prevent dissemination of pertussis from adolescents and adults to infants, and thus maintain herd immunity. 저자들은 발작적인 기침증상 및 간헐적으로 동반되는 구토, 청색증이 있는 신생아 및 3개월 미만의 유아에서 백일해균에 대한 배양검사와 PCR로 백일해를 확진하여 치료하였던 환자를 경험하였다. DTaP 접종이 완료되지 않은 신생아와 어린 영유아가 기침 증상이 오랫동안 지속되고 청색증, 호흡곤란이 동반된다면 백일해를 염두해 두어야 한다. 또한 청소년 및 성인에서 영유아로의 백일해 전파를 방지하며 집단 면역을 유지하기 위해 Tdap 백신의 접종을 적극적으로 권장해야 할 것이다.

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