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      • KCI등재

        은줄팔랑나비(나비목: 팔랑나비과) 성충의 행동특성과 서식지 보전방안

        홍성진,김형곤,윤춘식,정선우,Hong, Sung-Jin,Kim, Hyoung-Gon,Yoon, Chun-Sik,Cheong, Seon-Woo 한국환경과학회 2020 한국환경과학회지 Vol.29 No.8

        To conserve the population of a hesperiid butterfly, Leptalina unicolor, inhabiting the protected areas of Jaeyaksan, we provide ecological information on their behavior and propose habitat conservation measures, such as the creation of alternative habitats based on comprehensive information. The behavioral study used a method of re-capture after releasing the butterfly with enamel marks on the wings. Adult behaviors were shown in four patterns: flying, settling on a plant, nectar absorption, and water absorption. Both males and females had the highest proportion of flight movement overall; however, males had a slightly higher proportion of flight movement. As for duration, females spent more time settling on plants to select spawning sites, and males seemed to take a longer time for water absorption activities, to absorb minerals needed to form the spermatophore. The average travel distance of butterflies was 27.5 m for females and 46.7 m for males, with daily activity ranges from 11.2 m to 43.8 m, and 21.4 to 57.6 m, respectively. The most important condition to preserve the habitat of Leptalina unicolor is to maintain the community of Miscanthus sinensis, a food plant. Additionally, because this butterfly has a high rate of water absorption activities, wetlands should be maintained.

      • KCI등재

        은줄팔랑나비 개체군의 서식지 내 분포특성

        홍성진,윤춘식,정선우,Hong, Sung-Jin,Yoon, Chun-Sik,Cheong, Seon-Woo 한국환경과학회 2019 한국환경과학회지 Vol.28 No.12

        In this study, we investigated the spatial range, distribution pattern, temporal appearance, sex ratio, seasonal pattern, and size of the population of Leptalina unicolor locally inhabiting the wetland protection area in the Jaeyaksan Mountain. We found that the butterfly was distributed across four areas at 750 m above sea level and in an area of 96,000 ㎡. in the southeastern slope of the mountain. The discontinuous distribution of the butterflies in the meadow. According to our survey conducted from 2012 to 2014, L. unicolor occurred in May (spring) and July (summer) each year, with the male population more than three times higher than that of the female population. The population size estimated using the mark and recapture method on the back of the hind wing in the two years was as follows: 877±502 and 1243±800 individuals in the spring and summer of 2012, respectively, and 783±429 and 506±365 individuals in the spring and summer of 2014, respectively, suggesting no specific seasonal pattern. The findings of this study are expected to be useful for the conservation of the populations and habitats of L. unicolor, which are currently distributed locally due to a decrease in population size.

      • KCI등재

        발전용 소형가스터빈엔진 제어시스템 개발

        홍성진,김승민,육심균,남삼식,Hong, Seong-Jin,Kim, Seung-Min,Yook, Sim-Kyun,Nam, Sam-Sik 한국유체기계학회 2011 한국유체기계학회 논문집 Vol.19 No.2

        Small-sized gas turbine engine could be applied to various fields such as propulsion, power generation, machine driving, etc., and Doosan has been developing 5MW class gas turbine engine for power generation since 2005. To verify its design performance and operating characteristics, a gas turbine engine test facility was constructed, and control system was also established to satisfy rapid and reliable control performance. In this paper, the hardware specification and structure of control system for gas turbine engine are introduced, and test result for starting characteristics analysis and loading is also presented.

      • 단주동맹 참여자의 특성

        홍성진,이상연,백주희,Hong, Sung-Jin,Lee, Sang-Yeon,Paik, Ju-Hee 한국정신신체의학회 1997 정신신체의학 Vol.5 No.1

        The purpose of this study is to evaluate the demographic characteristics, alcohol-related characteristics and personality trends in the participants of Alcoholics Anonymous. We compared the 33 participants of Alcoholics Anonymous maintaining abstinence at least over 6 months with 35 hospitalized alcoholic patients who have never attended Alcoholics Anonymous and 32 normal controls. The personality trend was measured by Catell's 16 Personality Factors Questionnaire. -Korean Version. The results were as follows: 1) In the demographic data, the participants of Alcoholics Anonymous were mainly 40's, graduated from high school, married, unemployed, middle class in economic state, first or second sons. 2) In alcohol related characteristics, age of first drinking was mainly distributed from 15 to 19 years-old. The most common psychosocial and environmental problem as precipitating factor of alcohol consumption was the problem with primary supper group and the second one was occupational. Most of them drank everyday, and admitted one time. 3) In the first stratum sources traits, the participants of Alcoholics Anonymous demonstrated significantly higher score than hospitalized alcoholic Patients, but lower than normal control in C-factor(stableness). They demonstrated significantly higher score than hospitalized alcoholic patients and normal controls in O-factor(Guilt-proness) and demonstrated significantly higher score than hospitalized alcoholic patients in Q3-factor(self-control). 4) In the second stratum sources traits, they demonstrated significantly higher score than hospitalized alcoholic patients in EXT-factor(extroversions), and lower score than hospitalized alcoholic patients and normal controls in IND-factor(independence).

      • KCI등재후보

        만성신부전 백서에서 항고혈압제의 종류에 따른 신부전의 진행과 사구체의 형태학적 변화

        홍성진,김교순,김병길,박경화,김기혁,Hong Sung-Jin,Kim Kyo-Sun,Kim Pyung-Kil,Park Kyung-Hwa,Kim Kee-Hyuck 대한소아신장학회 2002 Childhood kidney diseases Vol.6 No.2

        목적 : 만성신부전은 신장에 병적 손상이 있어 지속적으로 신기능이 저하되어 말기신부전에 이르게 된다. 만성신부전의 진행을 지연시킬 수 있는 인자 중 혈압조절이 중요한 것으로 알려져 있다. 저자들은 부분 신절제를 이용하여 만성신부전을 유발시킨 후 항고혈압제로 enalapril과 nicardipine을 투여하여 만성신부전의 진행에 미치는 영향을 조사하였다. 대상 및 방법 : 백서에서 5/6 신절제술로 만성신부전을 유발시킨 후 무작위로 대조군, enalapril 투여군(E군), nicardipine 투여군(N군)으로 나누어 4주 간격으로 꼬리 동맥압을 측정하고 12주째 24시간 소변 단백량과 creatinine배설량, 혈청 creatinine을 측정한 후 희생시켜 신조직을 광학현미경과 전자현미경으로 관찰하여 사구체의 형태학적 소견을 조사하였다. 결과 : 1. 신절제 후 대조군은 지속적으로 혈압이 증가하였으나 E군과 N군에서는 정상 혈압이 유지되었다. 2. 12주째 E군에서 요단백량은 대조군과 N군에 비하여 유의하게 적었다. 3. 12주째 조사한 신장의 형태계측학적 검사에서 E군과 N군 모두에서 mesangium의 증식이 대조군에 비하여 유의하게 적었으나 사구체 용적은 E군에서만 대조군에 비하여 적었다. 4. 대조군, E군, N군간의 상피세표 족돌기의 형태학적 변화의 차이는 없었다. 결론 : 부분 신절제로 유발한 만성신부전 백서에서 enalapril, nicardipine 모두 고혈압을 예방하였으나 enalpril 투여군에서 단백뇨의 감소와 신병변 발생 예방 효과가 우수하였으며, 상피세포 족돌기의 변화에는 차이가 없었다. Purpose: Hypertension accelerates the progression of chronic renal disease, whether it results from, or causes, the renal disease. Therefore, the control of hypertension is one of the important factors that retard the rate of renal deterioration. We compared the effects of different antihypertensive agents on renal function and glomerular morphology In subtotal nephrectomized rats. Materials and methods: After induction of chronic renal failure with 5/6 nephrectomy, the rats were divided into three groups; control group (Group C), enalapril group (Group E), and nicardipine group (Group N). Systolic blood pressure was measured by tail cuff method every 4 weeks until 12 weeks after nephrectomy. At 12 weeks after nephrectomy, all rats were placed in metabolic cages for 24 hour urine collections to measure urinary protein and creatinine excretion. After urine collection and blood sampling for serum creatinine, all rats were sacrificed. The renal tissue was processed for morphometric study with light microscope and electron microscope. Results: 1. The blood pressure of Group C increased progressively, but both enalapril and nicardipine prevented the development of hypertension, and the two drugs were equally effective in maintaining normal blood pressure throughout the study. 2. Twenty-four hour urinary protein excretion was lower in Group E compared to Group C and Group N 3. Mesangial expansion score in both treated groups were significantly lower than the control group. Mean glomerular volume in Group E was significantly reduced compared to Group C and Group N. There was no significant difference in mean glomerular volume between Group C and Group N. 4. There was no significant difference in podocyte structural changes, estimated by filtration slit length density, among control, enalapril and nicardipine treated groups. Conclusion: Control of hypertension with enalapril or nicardipine afforded considerable protection from mesangial expansion in the rat remnant kidney model. But protein excretion and glomerular growth were significantly reduced in Group E compared to Group N. There was no significant difference in podocyte structural changes among the 3 groups.

      • 차세대 콘텐츠를 위한 AI 기술 활용 동향 및 전망

        홍성진,이승욱,윤민성,박지영,이수웅,김아영,정일권,Hong, S.J.,Lee, S.W.,Yoon, M.S.,Park, J.Y.,Lee, S.W.,Kim, A.Y.,Jeong, I.K. 한국전자통신연구원 2020 전자통신동향분석 Vol.35 No.5

        With the development of artificial intelligence (AI) and 5G technology, an ecosystem of digital content is gradually becoming intelligent, immersive, and convergent. However, there is not enough ultra-realistic content for the ecosystem. For ultra-realistic content services, creative content technologies using AI are being developed. This paper introduces the trends in and prospects of creative content technologies such as 3D content creation, digital holography, image-based motion recognition, content analysis/understanding/searching, sport AI, and content distribution.

      • 黃기內托散의 소염 작용에 관한 실험적 연구

        홍성진,심성용,김경준,Hong, Sung-Jin,Sim, Seug-Yong,Kim, Kyung-Jun 대한한의진단학회 2004 大韓韓醫診斷學會誌 Vol.17 No.2

        Objective: Chronic otitis media is an inflammation and infection of the middle ear which is persistent. Chronic otitis media occurs when the eustachian tube becomes blocked repeatedly, multiple infections, ear trauma, or swelling of the adenoids. A chronic ear may be the result of an acute ear infection that does not clear completely, or the result of recurrent ear infections. A chronic ear infection may be more destructive than an acute ear infection because its effects are prolonged, and it may cause permanent damage to the ear. Methods : Experimental animals made use of 4-5 weeks age(weight 20-25g) ICR(male)mouse. In the breeding farm, the lighting time was controlled from 7:00 am until 7:00 pm, the temperature was controlled within $22{\pm}0.5{\circ}$ and water and food were not limited. The extracts which were extracted from Hwangginaetak-san devided low dose group( 1.0g/kg-HN) and high dose group(3.0g/kg-HN), they were intragastrically administered to the mouse of sample A and sample B prior to LPS I.P injection. Compared with inflammation induced group which were induced by LPS, we measured the WBC count, IL-6 level in plasma and TNF-${\alpha}$ level in plasma. Results: 1. Hwangginaetak-san decreased WBC count in inflammatory reaction induced by LPS 2. Hwangginaetak-san decreased IL-6 level in inflammatory reaction induced by LPS. 3. Hwangginaetak-san didn't decreased TNF-${\alpha}$ level in inflammatory reaction induced by LPS Conclusion: According to above results, Hwangginaetak-san was improved its suppression effect to the inflammatory reaction through WBC count and IL-6 level. So Hwangginaetak-san is considered to be used for treatment of chronic otitis media by controlling the WBC count and IL-6 level in plasma.

      • KCI등재

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