비대칭 3상 선로에서 변압기 중성선의 순환전류 해석을 위한 신동파워이론 소개

신동열(Dong-Yeol Shin) 대한전기학회 2015 대한전기학회 학술대회 논문집 Vol.2015 No.7

혈액투석 환자에서 대퇴신경범증으로 발현된 장골근 및 요근 농양 1예

이준상,강동구,신상열,윤재호,조영일,고성은,유영범,전혜정,진춘조,송종오 대한신장학회 2004 대한신장학회잡지 Vol.23 No.1

팽이 톱밥 人工栽培時 培地微生物相의 經時的인 密度變化

배태웅,文炳周,辛元敎,宋模烈,李鉉旭,曺東進 東亞大學校生命資源科學大學附設 農業資原硏究所 1996 農業生命資援硏究 Vol.5 No.1

팽이 재배에 있어 가장 큰 문제 중의 하나는 雜菌에 대한 汚染, 특히 細菌에 의한 피해가 극심하므로 作業段階와 栽培過程 전반에 걸쳐 培地徵生物相의 經時的인 密度變化에 따른 雜菌의 培地內 流入時期를 조사하여 汚染菌의 發生消長을 알아보기 위해 現地農家에서 시험해 본 결과 接種후 培養室에서 菌絲培養을 시작한 5일후부터 細菌이 檢出되기 시작하여 菌긁기전까지 약 25일간 0.5∼3.1×10⁴cfu/g의 密度를 보였으나 經時的인 密度增加는 없었고, 菌絲培養이 끝난 뒤 菌긁기직후부터 細菌의 密度는 118.3×10⁴cfu/g으로 급격히 높아졌으며 子實體生育 기간동안에 시간이 경과함에 따라 密度가 현저하게 증가되는 경향을 나타냈다. 이는 培養室 안으로 흐르는 空氣를 통하여 甁內로 細菌이 流入되고 또한 菌긁기 직후 培地表面에 灌注하는 물과 加濕機에서 噴霧되는 물粒子가 細菌의 密度增加에 절대적으로 영향을 미치는 것으로 판단되므로 이때가 細菌性褐斑病菌에 感染되기 가장 용이한 시기로 생각된다. 眞菌은 菌긁기후 子實體生育 기간동안 1.17∼7.87×10⁴/g의 密度로서 菌絲培養 기간동안의 密度보다 다소 높게 檢出되었으나 대체로 經時的인 密度增加는 보이지 않았으며, 放線菌은 거의 검출되지 않거나 菌絲培養 후 5일째부터 다소 검출되기 시작했으나 밀도가 매우 낮았고 經時的으로도 증가되지 않았다. One of the most serious problem on the Enoki mushroom cultivation is the infection by pathogenicitic microorganisns, especially bacterial diseases causing serious economical losses in the mushroom production. It was carried out to find the tendency of the development of mushroom diseases by temporal changes and variation of the densities of media microflora through the cultivation periods and working stages in a mushroom farm. According to the results, several bacteria were detected from the fifth day after the inoculation and incubation of mycelium in the incubation room, and the density of bacterium was 0.5∼3.1×10⁴cfu/g media for 25 days before the inoculum-removing, although there was no increment of the density. Since the inoculum-removing after the spawn run, the density of bacterium was rapidly increased as 118.3×10⁴cfu/g media, and was significantly increased by time during the growth period of fruitbodies. It was hypothesized that it is the most suitable period for the pathogen infection because the bacterium might be introduced by the air in the incubation-room, and the increment of bacterium density might be affected by moisture supplied through watering or humidifier in the growing room after the inoculum-removing. Fungi were detected as the density as 1.17∼7.87×10⁴/g media and the density was slightly higher than that during the incubation period of hyphae, although there was no significant increment. Generally, the density of Actinomycetes was disregardfully low, or Actinomycetes were hardly ever found, although there was found some 5 days after incubation hyphae in few cases.

레이저 용융 적층공정을 이용한 정밀 형상 제작

김재도,전병철,권택열,이영곤,신동훈 한국레이저가공학회 2000 한국레이저가공학회지 Vol.3 No.3

For the direct metal shape processing the powder feed device which is different from the widely used in rapid prototyping. Is developed, The three dimensional object is shaped with the melting metal powder. The developed research has applied to rapid prototyping in ultraprecision for MEMS and medical science fields required of rapid manufacture of complex shape. The goal of this study make 3D model which has precision accuracy. Powder spreading apparatus has been more improved because that the control of powder spread is very important in layer manufacturing. It consists of the vibration motor, nozzle and tube which supplies various metal powder. This apparatus could control the spreading velocity that could control powder spreading thickness. Laser on/off switch was adapted because laser scanning velocity must be preserved constantly to prevent heat transformation of laser overheating. The error between sintered thickness and experimental one occurred by shrinkage in sintering melting process. The problem of heat transformation was solved by On/Off switching system.

방사선 조사 마우스에서 소장움세포의 Apoptosis 발생에 미치는 생약의 효과

김성호,안미라,나승렬,이종환,김재하,조성기,장종식,신동호 대한방사선 방어학회 2001 방사선방어학회지 Vol.26 No.1

Apoptosis의 유발을 억제하는 한약제를 파악하여 apoptosis와 관련된 정상적 또는 질병에 대한 연구에 자료를 제공하고자 방사선에 의해 유도된 apoptosis를 지표로 한의학적 처방에서 많이 사용되는 대표적 한약제(24종)의 효과를 검증하였다. 용안육, 산조인, 원지, 인삼, 복령, 목향, 천궁, 백작약, 승마, 시호 및 눈꽃동충하초 투여군에서 apoptosis는 감소되었으며, 이들 생약제는 apoptosis와 관련된 질병의 예방 및 치료에 적용할 수 있을 것이다. 추 후 이들 생약의 작용 기전에 대한 연구가 요구된다. This study was performed to determine the effect of several herbs on radiation-induced apoptosis in jejunal crypt cells. Longyanrou(Euphoris longana), Suanzaoren(Zizyphus vulgaris), Yuanzhi(Polygala tenuifolia), Rensan(Panax ginseng), Fuling(Poria cocos), Muxiang(Saussurea lappa), Chuanxiong(Cnidium officinale), Baishaoyao(Paeonia lactifolia), Shengma(Cimicifuga heracleifolia), Chaihu(Bupleurum falcatum) and Dongchongxiacao(Paecilomyces japonica) reduced the frequency of radiation-induced apoptosis(p<0.05). Although the mechanisms of this effect remain to be elucidated, these results indicated that Longyanrou, Suanzaoren, Yuanzhi, Rensan, Fuling, Muxiang, Chuanxiong, Baishaoyao, Shengma, Chaihu and Dongchongxiacao might be useful inhibitors of apoptosis, especially since these are relative nontoxic natural products.

LRFD 설계법에 의한 강박스거더 합성형교 설계 프로그램

김천용,권태형,이창열,신동구 明知大學校 産業技術硏究所 2006 産業技術硏究所論文集 Vol.25 No.-

A C++ based computer program for the design of composite steel-concrete box girder by the LRFD method is developed. The program consists of a main program, a header program, and 16 function programs. The load analysis for live and dead loads is performed by using the influence line based on the 3-moment method. For the design of box girder, strength limit states, fatigue limit state, and service limit state are considered. In addition, the constructibility of the girder is also checked. The validity of the program is demonstrated by comparing the design result for 3-span continuous box girder by the present program with the one by hand-calculation.

Athb-12, a homeobox-leucine zipper domain protein from Arabidopsis thaliana, increases salt tolerance in yeast by regulating sodium exclusion

Shin, Dong-jin,Koo, Yoon-Duck,Lee, Ji-young,Lee, Hyo-jung,Baek, Dong-won,Lee, Suk-han,Cheon, Choong-Ill,Kwak, Sang-Soo,Lee, Sang-Yeol,Yun, Dae-Jin Plant molecular biology and biotechnology research 2004 Plant molecular biology and biotechnology research Vol.2004 No.-

An Arabidopsis cDNA clone that encodes Athb-12, a homeobox-leucine zipper domain protein (HD-Zip), was isolated by functional complementation of the NaC1-sensitive phenotype of a calcineurin (CaN)-deficient yeast mutant (cnbΔ, regulatory subunit null). CaN, a Ca^(2+)/calmodulin-dependent protein phosphatase, regulates Na+ ion homeostasis in yeast. Expression of Athb-12 increased NaC1 tolerance but not osmotic stress tolerance of these cnbΔ cells. Furthermore, expression of two other HD-Zip from Arabidopsis, Athb-1 and -7, did not suppress NaCl sensitivity of cnbΔ cells. These results suggest that Athb-12 specifically functions in Na+ ion homeostasis in yeast. Consistent with these observations, expression of Athb-12 in yeast turned on transcription of the NaCl stress-inducible PMR2A, which encodes a Na^(+)/Li^(+) translocating P-type ATPase, and decreased Na+ levels in yeast cells. To investigate the biological function of Athb-12 in Arabidopsis, we performed Northern blot analysis. Expression of Athb-12 was dramatically induced by NaCl and ABA treatments, but not by KCl. In vivo targeting experiments using a green fluorescent protein reporter indicated that Athb-12 was localized to the nucleus. These results suggest that Athb-12 is a putative transcription factor that may be involved in NaCl stress reponses in plants.

Graded-size Si-nanocrystal-multilayer solar cells

Yeol Shin, Dong,Hee Park, Jae,Kim, Sung,Choi, Suk-Ho,Joong Kim, Kyung American Institute of Physics 2012 JOURNAL OF APPLIED PHYSICS - Vol.112 No.10

쇄골 외측 단 골절에 대한 사형 T형 잠김 압박 금속판을 이용한 수술적 치료 결과

신동주 ( Dong Ju Shin ),김태균 ( Tae Gyun Kim ),이충열 ( Chung Yeol Lee ),변영수 ( Young Soo Byun ),신정훈 ( Jung Hoon Shin ),남승오 ( Seung Oh Nam ) 대한골절학회 2011 대한골절학회지 Vol.24 No.1

목적: 쇄골 외측 단 골절에 대한 사형 T형 잠김 압박 금속판을 이용한 수술적 치료 결과를 분석해 보고자 하였다. 대상 및 방법: 쇄골 외측 단 골절에 대해 수술적 치료를 시행한 환자 중에서 1년 이상 추시가 가능하였던 14명을 대상으로 하였다. 13예는 Neer 제II형 불안정 골절이었고, 1예는 불유합된 Neer 제I형이었으며, 평균 연령은 46세 (범위, 26∼70)였다. 모든 환자에게서 사형 T형 잠김 압박 금속판을 사용하였고, 10예에서 추가적으로 흡수성 봉합사로 오구-쇄골 인대를 포함하여 금속판을 둘러 봉합하였으며, 4예에서 자가 장골 이식을 하였다. 임상적 결과는 UCLA scoring 및 KSS (Korean Shoulder Score)를 이용하여 평가하였다. 결과: UCLA 점수는 평균 33.5이었으며, KSS는 평균 94.9이었다. 골유합은 지연유합 1예를 포함하여 평균 11.9주 (범위, 6∼28)에 얻었으며, 골편의 재전위나 불유합 등의 합병증은 관찰되지 않았다. 결론: 사형 T형 잠김 압박 금속판을 이용한 쇄골 외측 단 골절 치료는 신뢰할 만한 임상결과를 제공하는 좋은 치료방법이라 생각한다. Purpose: The purpose of this study is to evaluate the surgical outcomes of the clavicle lateral end fracture fixed with an oblique T locking compression plate (LCP). Materials and Methods: Fourteen clavicle lateral end fractures were fixed with the oblique T-LCP and followed up for at least 1 year after the surgery. Thirteen cases were unstable Neer type II fractures and one case was nonunion of the Neer type I fracture. The mean age was 46 years of age (range, 26∼70). In ten cases, augmenting sutures with the absorbable suture material were placed in the coraco-clavicular ligament and around the plate and the clavicle to improve the stability of fracture fixation. Autogenous iliac bone graft was done in four cases. The clinical outcomes were evaluated by using UCLA scoring system and KSS (Korean Shoulder Score). Results: The mean UCLA score was 33.5 and the mean KSS was 94.9. Average time of bone union was 11.9 weeks (range, 6∼28), including 1 case with a delayed union. There was no complication such as loss of fixation or nonunion. Conclusion: Fixation with the oblique T-LCP is a good option providing reliable functional results in clavicle lateral end fractures.

주 변압기 2차 BUS 순간 전압강하에 의한 광역정전 원인과 해결방안

신동열(Dong Yeol Shin),김민지(Min Jee Kim),이승윤(Seung Youn Lee) 대한전기학회 2022 대한전기학회 학술대회 논문집 Vol.2022 No.7

우리나라 배전계통은 154kV 변전소의 주 변압기(45/60 MVA)에서 보통 6∼7개의 피더가 인출된다. 하나의 피더에서 고장이 발생할 때, 동일 Bank의 나머지 피더가 순간 전압강하에 의해 기기 오작동 및 순간 파급 정전 발생 될 수 있다. 본 논문은 상기 순간정전 사례 5건을 변전소의 87 계전기 고장데이터 모델링을 통해 전력품질 관리기준과 기기별 내성과 현수준을 분석하였다. 또한, 순간정전에 민감한 산업용에 대해 IEC 61000-4-34, Class 2 기준(순간 전압강하 70%, 30 cycle 이하)에 만족하는 해결방안을 제안하고, 실 계통의 고장데이터 모델링을 통해 개선 효과를 제시하고자 한다.