미기록 귀화식물: Plantago aristata (Plantaginaceae)

이정호,한동욱,이은주,박종욱,Lee, Jungho,Han, Dong Uk,Lee, Eun Ju,Park, Chong-Wook The Korean Society of Plant Taxonomists 2005 식물 분류학회지 Vol.35 No.2

절경이과의 Plantago aristata Michx.(국명신칭: 긴포꽃질경이)가 경기도 고양시 한강하구에 자라고 있는 것으로 처음 확인되었다. 이 귀화식물은 선형인 잎(길이 9-20 cm, 폭 5-8 mm), 긴 선형의 포(길이 약 2.5 cm), 큰 흰꽃(직경 4-6 mm)으로 다른 한반도 질경이속 식물들과 구별된다. 북미 원산인 본 종은 인근 국가인 일본과 중국에도 유입되어 퍼져나가고 있는 것으로 보고되어 있다. 확증표본은 서울대학교 석엽표본관(SNU)에 소장하였다. We reported that an alien species of Plantaginaceae, Plantago aristata Michx. from North America, grows at the Han-River estuary in Go-Yang City, Kyunggi Province. This species is easily distinguished from others in Korea by its linear leaves, cylindrical spikes with long linear bracts at base, and relatively large flowers of ca. 4-6 mm in diameter. We called the species as gin-po-ggot-jil-kyung-i as a local name. Plantago aristata is known to be very invasive and has been already introduced to Japan and China.

Hearing Impairments in Preterm Infants: Factors Associated with Discrepancies between Screening and Confirmatory Test Results

Jungho Han,신정은,이순민,은호선,박민수,박국인 대한신생아학회 2020 Neonatal medicine Vol.27 No.3

Purpose: The aim of the study was to investigate risk factors of hearing impairments in preterm infants and analyze factors associated with discrepancies between neonatal hearing screening (NHS) and confirmatory test results. Methods: We analyzed the medical records of 352 preterm infants born at 23 to 32 weeks’ gestational age (GA) who underwent both automated auditory brainstem response (aABR) and confirmatory ABR (cABR). Results: Mean GA, mean birth weight, the incidence of small for GA and cesarean section birth were significantly different between the pass and refer groups on aABR and the normal and abnormal groups of cABR. On univariate analysis, bronchopulmonary dysplasia (odds ratio [OR], 2.74; 95% confidence interval [CI], 1.00 to 7.48), intraventricular hemorrhage (OR, 7.02; 95% CI, 1.59 to 31.05), and use of furosemide (OR, 3.84; 95% CI, 1.38 to 10.73) were the factors related to refer results on aABR. Periventricular leukomalacia (PVL; OR, 4.00; 95% CI, 1.39 to 11.52) and use of vancomycin (OR, 2.86; 95% CI, 1.22 to 6.73) were associated with abnormal cABR. Twenty-five (7.9%) infants had discrepant aABR and cABR results, particularly males and those in whom vancomycin was used. Conclusion: PVL and use of vancomycin were confirmed as independent risk factors for hearing loss in infants born at less than 32 weeks’ GA. Also, discrepancies between the screening and confirmatory test may occur, especially among male infants and those in whom vancomycin was used. The hearing of infants must be assessed more carefully in such groups regardless of NHS results.

단일 전류센서를 이용한 배터리 충방전용 양방향 3상 인터리브드 컨버터 제어

한정호(Han Jungho),최유현(Choi Yuhyon),송중호(Song Joongho) 전력전자학회 2013 전력전자학술대회 논문집 Vol.2013 No.7

PR 제어기를 이용한 3상 4선식 인버터 Neutral Leg 제어 방법

한정호(Jungho Han),송중호(Joongho Song) 한국조명·전기설비학회 2015 조명·전기설비학회논문지 Vol.29 No.2

In 3-phase 4-wire inverter, the unbalanced loads cause to increase the neutral current which brings the voltage deviation between the split dc-link capacitors to be larger. In order to solve this problem, a neutral leg is provided additively to the ordinary inverter circuit and the associated control methods are devised. This paper proposes a new neutral-leg controller based on a PR controller and shows relatively good performance even under unbalanced linear loads and nonlinear loads. The proposed control strategy illustrates its effectiveness under the various operating conditions through simulation works.

감은사지 삼층석탑 창건 과정과 意匠計劃에 대한 연구

한정호(Han Jungho) 한국미술사학회 2007 美術史學硏究 Vol.- No.253

감은사가 창건되던 시기는 삼국통일을 통해 한반도를 장악한 신라가 고구려와 백제의 遺民들을 흡수ㆍ통합하며 專制王權을 강화해 나가던 시기로, 새로운 국가체제를 정비하고 통일국가의 위상을 표방하기 위한 신라 王室主導의 조영활동이 활발하게 전개되던 때이다. 당시에 펼쳐졌던 조영활동의 특징으로는 服屬地域에서 유입된 遺民들의 참여로 인해 이전 시대에 보이지 않던 새로운 양식과 기술의 출현을 지목할 수 있다. 당시 신라에 새롭게 등장하는 석조기술 가운데 문무왕 3년(663)에 건립된 長倉址에서 처음으로 출현하는 嵌石은 이미 백제 미륵사지 석탑에서 선례를 보이고 있어 당시 신라의 조영활동에 百濟遺民들이 깊이 관여했음을 보여주고 있다. 따라서 百濟의 건축에서 유래된 嵌石이 신라에 유입되는 과정과 비교해 볼 때 신라 典型石塔의 始原이자 완성을 구현한 감은사지 삼층석탑은 신라의 삼국통일을 계기로 진행된 백제 건축과 신라 건축 요소의 결합을 통해 완성되는 것으로 해석할 수 있다. 그리고 새로운 양식의 석탑이 백제 멸망 후 20여 년이 경과한 후에 비로소 감은사에 건립되는 배경은 海風이 심한 海邊이라는 감은사의 氣象學的 立地條件으로 인해 木塔보다 내구성이 강한 석탑이 적합했기 때문인 것으로 추정된다. 신라 사찰조영에서 堂塔건립의 선후관계는 문헌자료를 검토한 결과 탑보다 금당이 먼저 건립되는 것으로 확인된다. 감은사 역시 석탑 내에서 발견된 건축부재와 문헌자료에 비추어 볼 때 탑에 앞서 금당이 먼저 건립된 것으로 볼 수 있다. 감은사지의 조사와 관련된 여러 보고서에 수록된 각종 측정치와 실측도면을 통해 감은사지 석탑의 의장계획을 분석한 결과 감은사지 석탑 지대석의 폭(650㎝)은 감은사 前庭 동서 길이 (6,500㎝)의 10분의 1의 규모로 설정되었음이 복원되었다. 또한 복원된 석탑의 전체 높이 (1.300㎝)는 바로 지대석의 두 배와 일치하며, 상륜부는 석탑 전체 높이의 4분의 1의 높이로 계획되었음이 밝혀졌다. 이러한 비례는 이후에 건립되는 8세기 신라 전형양식의 삼층석탑에서도 대부분 적용되는 것으로 추정된다. 그리고 감은사지 석탑의 수평체감은 석탑 지대석의 폭650㎝를 약 31㎝씩 21등분으로 수직 분할한 선에 의해 각 部材의 폭이 결정되는 것으로 복원되었으며, 이러한 規則은 석탑의 外部로 드러나 있는 部材뿐만 아니라 석탑의 핵심공간이라 할 수 있는 內部의 刹柱孔과 舍利孔의 空間규모에 이르기까지 치밀하게 계획되었음을 확인할 수 있다. 끝으로 사찰 전체평면과 감은사지 석탑의 규모를 비교한 결과 감은사지 석탑은 주변을 두르고 있는 각 회랑 基壇의 內側 지대석 끝에서 각각 석탑 전체의 높이만큼 떨어진 지점에 석탑의 중심을 배치하고 있다. 따라서 익랑이나 회랑으로 석탑을 직각으로 눕힐 경우 刹柱의 끝은 각 회랑의 內側 基壇 지대석의 끝선과 정확하게 일치하게 된다. 이러한 의장은 황룡사 구층탑에서도 확인된 바 있어 삼국시대 단탑식 가람의 조영원리가 통일신라시대 쌍탑식 가람에 어떻게 변용되었는가를 보여주고 있을 뿐만 아니라 현재 발굴조사가 진행중인 四天王寺址 목탑의 복원에도 중요한 단서를 제공할 것으로 기대된다. Gameunsa was founded at the time when Silla, having achieved the unification of the three kingdoms, made vigorous efforts to establish the absolute royalty by winning the mind of the former Goguryeo and Baekje peoples and thus actively engaged in the construction work to demonstrate the prestige of a united nation. With new artisans from Goguryeo and Baekje joining the work, new construction styles and skills were implemented Particularly the use of special stone called gamseok (嵌石) for stone pagodas at the temple, which was first known at the site of Jangchang in Silla, was probably brought by the former Baekje people, for it was earlier seen in the stone pagoda of Mireuksa of Baekje This suggests that the creation of stone pagodas at Gameunsa which marks the beginning of typical Silla-style pagodas, was influenced by the earlier Baekje tradition in material and technology. The decision to erect stone pagodas must have been affected by d1e location of the temple near' the seashore where the significant erosion of wooden pagodas by salty wind would have been inevitable. In constructing Buddhist temples in Silla, pagodas were generally built earlier than golden halls. Extant architectural constituents of pagodas as wells as literary evidence indicate that the building of the pagodas preceded that of me golden hall at Gameunsa as well. The detailed measurement of the plan of Gamenusa reveals that me width of the base of a stone pagoda (650 centimeters) was a tenth of mat of the front courtyard of me temple compound (6,500 centimeters). The original height of a pagoda was twice the width of the base. The pole disclosed above me pagoda measures a fourth of me height of a pagoda. This proportion was faithfully followed in later three-story pagodas of Silla. The base of a pagoda was divided into twenty one segments, and each segment measuring 31 centimeters was used as a module in me gradual diminution of the upper parts This principle was meticulously applied to the position and size of me relic hole as well. The distance between two pagodas are exactly twice me height of a pagoda. All these clearly show me architectural principle applied to me design of stone pagodas in relation to the overall plan of the temple, which could be availed as useful information in me reconstruction of wooden pagodas at Sacheonwangsa built around the same time.

파라미터 변동을 고려한 3상 4선식 인버터 Neutral Leg의 상태궤환제어

한정호(Jungho Han),김흥규(Heungkyu Kim),이영일(Youngil Lee),송중호(Joongho Song) 전력전자학회 2014 전력전자학술대회 논문집 Vol.2014 No.7

皇龍寺中金堂址佛像臺石에 대한 고찰

韓政鎬(Han Jungho) 미술사연구회 2010 미술사연구 Vol.- No.24

The Buddha statue of sixteen-foot (丈六) high that once stood in the Golden Hall at Hwangryongsa temple was produced in 574 during the King Jinheung’s era (540-575) of the Silla Kingdom. But the images were destroyed in the thirteenth century during the Goryeo Dynasty at the time of Mongol invasion. Although they no longer exist today, ancient historical record, Samguk Yusa, gives us important information that the sixteen-foot gilt bronze Buddha triad was made after the model supposedly sent by Indian King Ashoka. Although it seems to be legendary this suggests that the auspicious image of Buddha at Hwangnyongsa probably followed a certain model of Indian origin. At the site of the Golden Hall temple site of Hwangnyongsa there still remain three huge stone pedestals for the lost sixteen-foot Buddha triad, and several more stone bases remain for the images of ten disciples. Brahma and Indra and Four Guardian Kings. This paper, however, focuses on the stone pedestal of the main Buddha by examining its shape and surface traces in an attempt to reconstruct the original statue of the Buddha and it’s structure. Frist, the stone used for the three pedestals of the Buddha triad was probably brought from somewhere that was originally used for the cover of Dolmen structure. The color traces of the three pedestals indicate that they were cut from one piece of a huge stone. The stone pedestal shows deeply cut holes, two rectangular ones inside a round ring and one single square hole outside the ring. These remains help to imagine how the images were once stood. It is assumed that probably an wooden lotus pedestal was placed over stone pedestal to fit to the hollow round ring. The shapes of the lotus leaves of the pedestal might be compared with those of the stone Amitabha Buddha Triad at Mount Seondo in the western part of Gyeongju city. The main Buddha statue is known be about 5m tall, but at the time of it production they used the measurement following the system of Goryeocheok (高麗尺: Goryeo measurement). Based on th size of the holes for the foot of the Buddha statue on the stone pedestal the height of the sixteen-foot (丈六) Buddha statue would be about 570cm based on the measurement that one cheok (尺) corresponds to 35.66cm in Goryeocheok. The same measurement system was also applied to the arrangement of the columns in the main buildings at the same temple. It is difficult to determine when the other statues in the Golden hall, probably the ten disciples, Four Guardian Kings and Brahma and India were made. I assume that they were probably made in clay statues. The stone pedestals indicate that those for the ten disciples and Four Guardian Kings were made at the same period, probably made together with the Buddha Triad, or more likely some years later. There were several reconstructions and enlargement were carried out at Hwangnyongsa temple, one in the mid-seventh century and also in the mid-eighth century. It seems that the Brahma and Indra were added later in the mid-eighth century since one has to also consider the time when a new buddhist iconography was added in the development of Buddhist art.

LCL 필터의 능동댐핑을 적용한 3상 4선식 PWM 정류기 제어

한정호(Han Jungho),김현섭(Kim hyunsub),박한얼(Park Haneol),송중호(Song Joongho) 전력전자학회 2012 전력전자학술대회 논문집 Vol.2012 No.7

소형풍력발전기의 최대 전력점 추적을 위한 Hybrid 탐색

한정호(Jungho Han),송화창,송중호 한국지능시스템학회 2013 한국지능시스템학회 학술발표 논문집 Vol.23 No.2

인버터 입력전류 분석을 이용한 유도전동기 고장진단 검출

한정호(Jungho Han),최규형(Kyu-Hyoung Choi),송중호(Joong-Ho Song) 한국조명·전기설비학회 2016 한국조명·전기설비학회 학술대회논문집 Vol.2016 No.5