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장주영(Ju-Yeong Jang),이종범(Jong-Beom Lee) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.11
This paper aims to analyze the overvoltage and fault current in Al underground transmission system and distribution systems when lightning surge strikes the overhead line and occurs line to ground fault. The modeling is established by EMTP / ATPDraw based on actual transmission system and distribution systems. This simulation carried out considering various of parameters such as lightning current and permissible current.
3상 일괄형 Pipe Type HTS 케이블의 정상 및 과도상태 해석
장주영(Ju-Yeong Jang),이종범(Jong-Beom Lee),김용갑(Yong-Kap Kim) 대한전기학회 2010 전기학회논문지 Vol.59 No.10
This paper suggests an improved technique to establish the modeling regarding steady and transient state on three phase-in one cryostat type HTS(High Temperature Superconducting) cable. The proposed modeling is established using EMTP/ATPDraw and TACS and MODELS provided by that. It has higher accuracy than the conventional method, as the actual HTS cable is modelled. Steady and transient state analysis performed by EMTP/ATPDraw calculate the current of conductor, shield and former, respectively. In case of the transient state modeled quench state occurred by a single line-to-ground fault, current of conductor shield and former are also calculated, respectively. Especially, various fault resistances and angles are considered to improve the reliability during transient state analysis. Analysis results reveal that the proposed technique improves the accuracy of modeling.
지중송전 및 배전계통에서 알루미늄 도체 선로운용의 실용성 평가
장주영(Ju-Yeong Jang),이종범(Jong-Beom Lee),김용갑(Yong-Kap Kim) 대한전기학회 2011 전기학회논문지 Vol.60 No.3
This paper describes that the evaluation on operation practicality of Al conductor cable will be used instead of Cu conductor cable. Analysis is divided into two kinds of cases as transmission and distribution. To evaluate that Al conductor line has the insulation strength indeed safely, various analysis and calculation such as single line-to-ground fault current, lightning surge and allowance current were carried. Model was established based on real combined transmission and distribution is being used in utility with EMTP. The analysis results on Al and Cu conductor line were compared each other. It was proved that Al conductor line can be operated instead of Cu conductor line without special insulation problem in transmission and distribution, in electrical view point such as overvoltage and allowance current.
손영배,장주영,박형두,이수연,Son, Yeong-Bae,Jang, Ju-Yeong,Park, Hyeong-Du,Lee, Su-Yeon 대한유전성대사질환학회 2014 대한유전성대사질환학회지 Vol.14 No.2
시트룰린혈증 2형은 SLC25A13 유전자 결함으로 인한 시트린 결핍에 의한 상염색체 열성 유전질환이다. 시트룰린혈증 2형은 임상적으로 '시트린 결핍증에 의한 신생아 간내 담즙정체(NICCD)'와 '성인기 발병형 시트룰린혈증 2형'의 두 가지 형태로 나타난다. NICCD는 영아기 간내 담즙정체, 지방간, 간기능 장애, 저단백혈증과, 혈액 응고장애, 저혈당증, 성장부진 등의 증상이 나타나며 임상증상과 생화학적 검사 결과를 바탕으로 질환을 의심하에 SLC25A13 유전자 검사를 통해 확진할 수 있다. 또한 최근에는 무증상 상태에서 신생아 대사이상 선별검사를 통해 진단되기도 한다. 저자들은 신생아 대사이상 선별검사는 정상이었으나 지속되는 황달로 입원한 3개월 남아에서 SLC25A13 유전자 검사로 확진된 NICCD 1례를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. 환아는 지속적 황달과 경도의 고암모니아 혈증과 간효소 수치의 상승, 직접 빌리루빈의 상승을 보이고, 혈장 아미노산 분석 결과 시트룰린과 메티오닌, 트레오닌 상승을 보였다. 시트룰린 혈증 2형 의심 하에 시행한 SLC25A13 유전자 염기서열 분석 결과, c.[852_855delTATG](p.Met285Profs*2)과 c. [1180+1G>A] 이형접합 변이가 발견되었다. 신생아 대사이상 선별검사 결과가 정상이었다고 하더라고 간내 담즙정체가 있는 영아는 NICCD를 감별진단 중 하나로 고려하여 암모니아 및 혈장 아미노산 분석을 포함하여 검사를 시행하는 것이 감별진단에 도움이 될 것으로 사료된다. Citrullinemia type 2 (citrin deficiency) is an autosomal recessive inborn error metabolism, caused by the SLC25A13 gene mutation. Citrin deficiency is associated with two clinical phenotype; neonatal-onset type II citrullinemia (CTLN2), also known as neonatal intraphepatic cholestasis caused by citrin deficiency (NICCD) and adult-onset CTLN2. Clinical manifestations of NICCD include poor growth, intrahepatic cholestasis, liver dysfunction and increased plasma citrulline, methionine, threonine, arginine. The molecular diagnosis could be confirmed by SLC25A13 gene mutation analysis. A 3-month-old male infant with persistent jaundice was referred for evaluation. Newborn screening was normal at birth. Mild elevation of serum ammonia and AST/ALT were observed. Plasma amino acid analysis showed significantly elevated citrulline, methionine, threonine. DNA sequence analysis of the SLC25A13 gene revealed two compound heterozygous mutations, c.[852_855del]($p.Met285Profs^*2$) and [1180+1G>A]. We suggest that NICCD should be considered as one of the cause of in infants with cholestatic jaundice, although the newborn screening was normal.
환아를 위한 국내여행 교육 게임 콘텐츠 : 클릭, 다녀오겠습니다!
곽미주 ( Mi-ju Gwak ),송영주 ( Young-ju Song ),장주영 ( Joo-yeong Jang ) 한국정보처리학회 2021 한국정보처리학회 학술대회논문집 Vol.28 No.2
본 논문에서는 초등학생을 대상으로 한 국내여행 교육 게임 콘텐츠로, 에듀테크 분야 중 하나인 게임 베이스러닝을 이용하여 지리, 해당 지역의 특색, 역사 학습을 제공한다.
실내 수조에서 수온의 변화에 따른 아무르불가사리(Asterias amurensis)와 별불가사리(Asterina pectinifera)의 행동 패턴
권인영(Inyeong Kwon),신형식(Hyung-Sik Shin),장주영(Ju-Yeong Jang),홍석규(Suk-Kyu Hong),김태호(Taeho Kim) 전남대학교 어업기술연구소 2014 어업기술연구소보고지 Vol.7 No.1
A series of experiments which observed the movement patterns of starfishs (Asterias amurensis and Asterina pectinifera.) upon changes of water temperature (10, 15, 20 and 25°C) were carried out in an indoor water tank. In the experiment, the moving speed and distance of starfishs (Asterias amurensis and Asterina pectinifera) in the water tank was analyzed based through observations of video camera footage and PVS software. A total of 24 starfishs were used, with an initial body wet weight of 79.86±20.12 g (Asterias amurensis), 66.50±38.03 g (Asterina pectinifera) respetively. The movement patterns of starfishs (Asterias amurensis and Asterina pectinifera.) were observed using video camera for 12 h a day. Asterias amurensis showed the highest activity at 15℃ of water temperature. The maximum moving distance and speed of Asterias amurensis were about 2.64 m and approximately 0.0040 ㎧ at 15℃, respectively. The minimum observed moving distance and speed of Asterias amurensis were about 0.40 m at 25℃ and approximately 0.0012 ㎧ at 25℃, respectively. On the other hand, Asterina pectinifera showed the highest activity at 25℃ of water temperature. The maximum moving distance and speed of Asterina pectinifera were about 3.18 m and approximately 0.0049 ㎧ at 25°C, respectively. The minimum observed moving distance and speed of Asterina pectinifera were about 0.55 m at 15℃ and approximately 0.0018 ㎧ at 10℃, respectively. It was observed that the optimum water temperature for starfishs (Asterias amurensis and Asterina pectinifera) movement was about Asterias amurensis in 15°C and Asterina pectinifera in 25℃, respectively.