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      • KCI등재

        해마류 Hippocampus harbouri의 외부형태 발달과 성장 그리고 생존

        최영웅,정민민,김성철,김재우,이정의,이윤호,노섬,Choi Young-Ung,Jung Min-Min,Kim Sung-Chul,Kim Jae-Woo,Lee Jung-Uie,Lee Yoon-Ho,Rho Sum 한국해양학회 2006 바다 Vol.11 No.3

        해마류 Hippocampus harbouri의 인공번식 기술개발을 위한 이 연구는 인도네시아 원산의 H. barbouri 1개체가 출산한 154마리의 자어를 대상으로 형태적 발달의 특징, 성장 그리고 생존율을 조사하였다. 출산 후 1일째 자어는 표준체장이 $8.82\sim10.36mm$ (평균 $9.48{\pm}0.69mm$, n=4)이고, 등지느러미 가슴지느러미 그리고 뒷지느러미 줄기 수는 각각 17, 14그리고 4개 형성되어 있었다. 출산 후 16일째 표준체장은 $12.33\sim13.91mm\;(13.01{\pm}0.75mm)$로 성장하면서 체륜 극은 날카롭게 발달하여 성체와 비슷한 모습을 띄기 시작하였다. 출산 후 20일째 체장이 $14.37\sim15.79mm$ ($14.97{\pm}0.62mm$, n=4)로 성장하면서 주둥이가 가늘고 길어졌고 아래턱 주변부위도 완전히 착색되어 성어와 거의 유사한 체색과 체형을 갖추었고 이 시기 생존율은 91.6%이었다. 출산 후 41일째 치어는 표준체장이 $20.14\sim24.89mm(22.89{\pm}2.22mm,\;n=4)$로 성장하면서 머리의 극은 원통형으로 굵어지고 끝에서 여러 개의 돌기가 돋아서 관의 모양으로 발달하였는데 이 시기 체륜은 몸통에 11, 미부에 35개가 형성되어 있는 것을 관찰할 수 있었고 이 시기 생존율은 57.1%였다. 출산 후 158일째에는 $59.07\sim63.76mm(61.42{\pm}3.32mm\;n=2)$으로 성장하여 체장에 대한 두장, 몸 통장 그리고 미장의 비율은 각각 $19.1{\pm}0.3%,\;25.2{\pm}0.7%$그리고 $55.8{\pm}0.3%$이었고 이 시기 생존율은 15.6%였다. We have investigated morphological development with growth and survival rates of juvenile for 158 days after parturition to get a basis data in the way of establishment of breeding techniques in the common seahorse species of Barbour's seahorse, Hippocampus barbouri. At 1 day after parturition, seahorse larvae were $8.82\sim10.36mm(mean\;9.48{\pm}0.69mm,\;n=4)$ in standard length (SL) with 17 dorsal fm rays, 14 pectoral fin rays and 4 anal fin rays. At 20 days after parturition, the size of seahorse larvae were $14.37\sim15.79mm(14.97{\pm}0.62mm,\;n=4)$ in SL, snout of seahorse larvae became slender was long, and body was coloration to the full as adult seahorse. At 41 days after parturition, seahorse larvae were grew $20.14\sim24.89mm(22.89{\pm}2.22mm,\;n=4)$ in SL with development of several spines in coronet, and their have 11 trunk rings and 35 tail rings. At 158 days after parturition, seahorse were grew to $59.07\sim63.76mm(61.42{\pm}3.32mm\;n=2)$, and head length (HL), trunk length (TrL) and tail length (TaL) were composed respectively $19.1{\pm}0.3%,\;25.2{\pm}0.7%$ and $55.8{\pm}0.3%$ of SL. In this time, survival rate is 15.6%.

      • KCI등재후보

        Maternal Separation Impairs Memory Function through Suppressing Synaptic Plasticity in Rat Pups

        최영웅,백형환,김대영,정선영,김태운,서진희,성윤희,김창주 대한스트레스학회 2012 스트레스硏究 Vol.20 No.2

        Maternal separation during the early postnatal period is a stressful state that can disturb postnatal brain development, which induces cognitive and behavioral impairment. In this study, we investigated the effect of maternal separation on memory function in relation to synaptic plasticity in the brain of rat pups. On postnatal day 14, the rat pups were divided into one of two groups: the maternal care group and the maternal separation group (n=8 in each group). The rat pups in the maternal care group were housed with their respective mothers under standard conditions, while the rat pups in the maternal separation groups were separated from their dams and housed individually. The maternal separation started on postnatal day 15 and was continued for 10 consecutive days. To evaluate memory function of the rat pups, step-down avoidance task was performed. Expressions of brain-derived neurotrophic factor (BDNF), its receptor tyrosine kinase (TrkB), and phosphorylated synapsin (p-synapsin) were determined by western blot analysis. In the present results, latency in the step-down avoidance task was decreased in the rat pups of the maternal separation group. Expressions of BDNF, TrkB, and p-synapsin in the hippocampus were decreased in the rat pups of the maternal separation group. These results suggest that maternal separation impaired memory function with suppressing BDNF, TrkB, and p-synapsin expressions in the hippocampus. Maternal separation-induced memory impairment in the rat pups can be ascribed to the decreased synaptic plasticity through suppression of p-synapsin expression in the hippocampus.

      • KCI우수등재

        건물에너지시스템 센서 네트워크에서의 백업 가상센서 성능 향상을 위한 시계열 데이터 다운스케일링 방법

        최영웅,윤성민 대한설비공학회 2022 설비공학 논문집 Vol.34 No.3

        Building system sensor networks measure and collect various information in buildings. Virtual sensors provide enormous potentials for improving and supplementing physical sensor-based building sensor networks. Virtual sensors are developed upon data collected from the sensor network and used for observation, backup, and prediction of system variables. A virtual sensor is a model which learns mathematical relations among input data to output the required variable. In this regard, aggregating various heterologous data (data fusion) has been important to obtain high-performance virtual sensors containing well-learned inner structures. However, fusing different data into single time series can be a difficult task due to the different sensing periods (data resolution). In this paper, a novel relational variable-based data downscaling method is suggested to tackle the limitations on building system data fusion. The effectiveness of the proposed method was evaluated with real operational datasets. The suggested method improved the performance of the virtual sensor by 30.2%. 본 연구에서는 건물에너지시스템 센서네트워크의 데이터 융합을 위한 관계변수 기반 다운스케일링 방법을 제시하고, 업스케일링 된 데이터를 활용하여 가상센서 성능을 향상시키는 전략을 제시하였다. 다운스케일링 방법으로 관계변수 기반 방법이 제시되었으며 시간단위 데이터와 분단위 데이터를 통합 활용할 시 발생하는 계측주기 차이에 대한 문제를 효과적으로 해결할 수 있었다. 또한, 다운스케일링 방법의 활용 측면에서, 가상센서 구축 시 시계열이 다른 데이터를 통합하여 입력변수로 활용할 수 있었다. 이에 대한 효과를 검증하기 위하여 가상센서 입력변수 구성 방법에 따른 Case를 설계하고 가상센서 성능을 평가하였다. Case 스터디에 대한 종합 결과는 Fig. 10과 같이 데이터 전 기간에 대한 가상센서 성능으로 표현하였다. Case 1 대비 Case 2는 9.7%, Case 3은 30.2%의 가상센서 오차가 감소하였다. 또한, Case 2의 센서 오차 표준편차는 Case 1 대비 8.8% 증가했지만, Case 3의 경우는 13.6% 감소하였다. 종합적으로, Case 3의 모델이 가장 우수한 성능을 보였다. 이는 관계변수 기반 다운스케일링을 활용한 데이터 융합 방법이 가상센서 모델링과 성능에 긍정적인 효과를 보인다는 것을 의미한다. 본 연구에서 제시한 다운스케일링 방법은 시간단위와 분단위 데이터 간의 시계열 종합 뿐 아닌 다양한 계측주기를 가진 데이터들에 적용할 수 있는 기술로, 건물데이터 운용 관점에서 활용도가 높을 것으로 사료된다.

      • 體育史的 側面의 民俗競技 硏究 : 嶺東地方을 中心으로

        崔永雄 三陟大學校 1996 論文集 Vol.29 No.3

        In these days, Young-dong province is being developed rapidly as one day-living circle from Seoul with the trapic facility on land, air, sea. I have studied every traditional folk games, in order to revive those which were buried deeply and were not studied enough. As a represantative folk games, there are Gi-juldarigi(similar to a rope pulling contest) in Sam-chok, Congrontation of three headmen in Buk-pyung, Jang-chigi(similar to hockey or polo game), fight with stone missile, a fight with touch in Kang-neung,... etc. We must also study the traditional folk games in Tae-back, the highland province, and try to get them developed as one rooted in Young-dong province. As a folk games on the athletic aspect, there are Ssilum(Korean wrestling), Taek-kyun and Subak(much the same of Taekwondo), Archery, Jang-chigi, Seasaw game, Swing game, Kite fling, a fight with stone missiles, a fight with torch, a mock cavalry battle,...etc. As a passtime or recreation in the New Year reception costom, there are also the game of Yut, Ssangyuk(simllar to Yut), Toohoo, the game of Baduk, Janggi(Korean chess) for adultry, Tipcat, Jackstone, Massanze(ride mount a person) for children, rope of skiping and rope jumping, tight rope dancing, as a kind of acrobatics. It is necessary to find out the trace of them and revive their old custom. I have studied the origin and background of folk games in Young-dong province and summarized them as followings. 1. It was changed from the game of warrior to that of populace. 2. The celebrating games as player or thanksgiving have changed to that of passtime. 3. They were developed centering around the native religions rooted from Eastern Sea and Taebaek Mountains. 4. We must help to developm our province by the means of studying and improving, suggesting the folk games marked with regional traits. In the history, the era with thriving national athletics became strong and flourishing, creating new national culture, and the other ear looking down on athletics became weak. If we study and analyze the provincial folk games, modernize and bdast them to the would, it would shine our province and could lead to the reunification of our country, Korean. Thus I have studied the traditional folk games on the side of the athletic history.

      • 스포츠經營學의 硏究動向과 學問的 課題硏究

        崔永雄 三陟大學校 1995 論文集 Vol.28 No.2

        Sport management is a new and dynamic field requiring development. Sport management is increasing in popularity as a career path. This has resulted in a need to develop education and training programs for the area. However, this task is complicated by the diversity of environments in which sport management is required. Although an increasing number of institutions offer sport management programs, there is a lack of an identified and recognized base of common knowledge for sport management. In North America this has resulted in the development of standards for curriculum accreditation of sport management programs. A similar initiative is necessary for the sport management in Korea. A competency-based minimum body of knowledge for the Bachelor's, Master's and Doctoral degree-levels in needs.

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