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      • 거제도(경상남도, 거제시)의 거미상

        김주필(Joo Pil Kim),김대희(Dae Hee Kim),지승환(Seung Hwan Ji),지성현(Sung Hyun Ji) 한국거미연구소 2017 한국거미 Vol.33 No.2

        2017년 7월 4일부터 6일까지 경상남도 거제시 거제도 일대를 김주필, 김대희, 지승환, 지성현, 최라미, 이영경 등 한국거미연구소 회원들이 주야로 채집한 결과, 총 23과 56속 75종이 조사 연구되어 이에 발표하는 바이다. 채집한 표본은 주필거미박물관에 보관하였다. From July 4 to 6 in 2017. Joo-Pil Kim, Dae-Hee Kim, Seung-Hwan Ji, Sung-Hyun Ji, Ra-Mi Choi, Yeong-Gyeong Lee, the members of The Arachnological Institute of Korea investigated the spiders in the whole area of Geoje city, Geoje-do, Gyeongsangnam-do and report 23 Family 56 Genus 75 Species of spiders. The collected spiders are placed (stored) in the Joo-Pil Spider museum.

      • KCI등재
      • 외팔보 진동의 시간 최적제어

        박영필,정승호 연세대학교 산업기술연구소 1986 논문집 Vol.18 No.1

        The feedback controller for the active control of a cantilever beam vibration is developed using time optimal bang-bang control theory. The effects of I)the constraint of the control force magnitude and II)the actuator positions are investigated numerically. The results show that I)the magnitude of the constraint force and control time are inversely proportional, II)the control effect is increased as the actuator position moves toward the free end of the beam, and III)the controller gives Coulomb damping effect to the system.

      • 케일녹즙이 고콜레스테롤식이 흰쥐의 혈청 및 간장의 지질성분에 미치는 영향

        박필숙,강진순,정승용,박재옥,김행자 慶尙大學校 1987 論文集 Vol.26 No.1

        체중 60~65㎏의 wistar계 숫쥐에게 cholesterol 무첨가식이에 물과 kale 녹즙을 각각 급여하여 혈청중 총 cholesterol 농도, HDL-cholesterol 농도, 간장중의 총 cholesterol 농도, 혈청 및 간장중의 TG와 PL의 농도 그리고 과산화지질 농도를 측정하여 다음과 같은 결과를 얻었다. 1) 혈청중 총 cholesterol 농도는 cholesterol 무첨가식이군인 1,2군산 cholesterol 첨가이식군인 3,4, 5군간에서 각각 유의성이 없었다. HDL-cholesterol 농도는 cholesterol 무첨가식이군인 1,2군과cholesterol 첨가이식이군인 3,4,5군에서 kale 녹즙을 급여한 군이 유의적으로 높았다. 2)혈청의 중성지방농도는 전 군간에 유의성은 없으나 물ㅇㄹ 급여한 군보다 kale 녹즙을급여한 군에 있어 약간 낮은 경향이었다. 혈청의 인지질 농도는 cholesterol 무첨가식이군 및 cholesterol 첨가이식군 모두 물을 급여한 군보다 kale 녹즙을 급여한 군이 유의적으로 높았다. 3)간장의 총 cholesterol 농도는 cholesterol 첨가식이군에 있어 물을 급여한 군이 약간 낮은 경향이었다. 4)간장의 중성지방농도는 cholesterol 무첨가식이군에 비해 cholesterol 첨가이식군인 3,4,5군이 유의적으로 높았으며, 이들 군간에 있어서는 kale 녹즙혼액군이 비교적 낮았다. 간장 인지질농도는 cholesterol 첨가식이군인 3,4,5군간에 있어 kale 녹즙과 녹즙혼액을 급여한 3,4,군이 비교적 낮았다. 5)혈청 및 간장의 과산화지질농도는 cholesterol 첨가이식군인 3,4,5군이 무첨가식이군에 비해 대체로 낮았으며 또한 kale녹즙과 녹즙혼액을 급여한 군에 있어 유의적으로 낮았다. 이상의 결과로 보아 kale 녹즙의 섭취는 혈청 HDL-cholesterol 농도의 상승효과가 있고 간장 중 cholesterol 및 인지질의 농도를 다소나마 저하시키며 또한 혈청및 간장의 과산화지질농도의 지하작요이 있으므로서 혈청 및 간장의 지질개선효과가 있는 것으로 사료된다. The effect of kale juice, Brassica oleracea, on lpid components in serum and liver were investigated by feeding male rats of wistar for four weeks. And the concentrations of T-cholesterol,phospholipid, triglyceride and lipid peroxide in serum and liver were analysed along with the HDL-cholesterol concentration of serum . The results were as follows: 1)There was not found ny significant influence on the concentration of T-cholesterol in serum, butsome of relatively higher inluence but some of relatively higher influence on the HDL-cholesterol concentration. 2)For the group fed with 100% kale juice the concentration of triglyceride was shown lower than for any other groups, while that of phospholipid was shown higher. 3)The concentration T-cholesterol in liver was shown a little lower for the kale juice groups. 4)The concentration of triglyceride in liver was remarkably decreased in the 100% kale juice group in comparison with other groups, whiel the phospholipid concentraion was not. 5)Lipid peroxide values in serum and liver were relatively decreased in the kale juice groups compared to other group.

      • 회전하는 유연한 조작기의 진동 해석

        김승호,하영균,정승호,박영필,황효성 연세대학교 산업기술연구소 1985 논문집 Vol.17 No.2

        An analytical and experimental investigation is made to the dynamic response of a cantilever with a tip mass that models some of the basic phenomena involved in the response of a flexible manipulator with a tip mass on its free end under the given rotating motion. The system equation is derived from the Hamilton's principle on the basis of the Euler-Bernoulli hypothesis and an approximate solution is obtained from modal analysis using Galerkin's method for the vibration response of the system subjected to a sudden stop after an impulsive rotation. Experiment was performed to verify the validity of the theoretical analysis. Results are given for the vibration amplitude of the free end with respect to tip mass ratio, non-dimensionalized rotating velocity, rotating angle and non-dimensionalized hub length. The rotating condition to minimize the vibration amplitude of the free end can be determined for the given basic parameters.

      • BSCCO 시스템에서 초전도상의 특성

        박용필,양승호,천민우 동신대학교 2005 論文集 Vol.15 No.-

        BSCCO(Bi_(2)Sr_(2)Ca_(n-1)Cu_(n)O_(x)) 초전도 상을 이온 빔 스퍼터와 단일 타겟 DC-magnetron 스퍼터를 사용하여 제작하였다. 상형성은 n=2-3, 3-4 그리고 4-5 사이에서 이루어졌다. 스퍼터링 시 분위기 가스로 산소를 주입 하였고 제작된 박막의 상의 몰 비를 XRD를 이용하여 분석하였다. 각 상의 몰 비를 이용하여 초전도박막의 특성을 변화시킬 수 있음을 알았다. 또한, 각 상을 AFM과 SEM을 사용하여 박막의 표면을 관찰하여 표면의 불순물 상태를 알 수 있었다. BSCCO(Bi_(2)Sr_(2)Ca_(n-1)Cu_(n)O_(x)) superconducting phase were fabricated by an ion beam sputtering and single target dc-magnetron sputtering. Phase intergrowth among n=2-3, 3-4 and 4-5 phases was observed. The molar fraction of each phase in the mixed crystal of the deposited films was determined by X-ray diffraction analyses and investigated as a function of O_(2) gas pressure during sputtering. We investigated the changes of the superconducting properties by molar fraction of each phase. Also, the thin film surface observation was carried out by AFM. According to the result observing the surface of the thin film with SEM, even in case that the formed phase and the composition of the thin film agree, it can be known that there are a number of the precipitates on the surface.

      • 말쥐치 기름의 投與가 흰쥐의 血淸 및 肝臟의 콜레스테롤 濃度수준에 미치는 影響

        鄭承鏞,黃淑子,姜晋順,朴畢淑 慶尙大學校 1985 論文集 Vol.24 No.2

        Sprague Dawley계 숫 흰쥐에 eicosapentaenoic acid 및 docosahexaenoic acid둥 고도불포화지방산을 함유하고 있는 말쥐치커기름과 monoenoic acid를 많이 함유하고 있는 올리브기름을 각각 10% 씩 첨가하고 또한 vitamin E를 식이 100g당 5, 50, 100 I. U.로 첨가한 사료로서 2주간 사육한 후 혈청 및 간장 중의 cholesterol 농도, 과산화지질 및 α-tocopherol의 농도를 측정한 바 다음과 같은 결과를 얻었다. 1. 증체량 및 사료섭취량은 전 시험군 간에 있어 유의적인 차이는 없으나 말쥐치기름 투여군이 약간 낮은 경향이었다. 2. 혈청 중의 총 cholesterol 농도는 올리브기름 및 말쥐치기름 투여 군 모두 vitamin E의 첨가량을 증가시킴에 따라 낮아지는 경향이었으며, 말쥐치기름 투여군 은 올리브기름 투여군에 비해 유의적으로 그 농도가 낮았다 (P<0.05). 3. 혈청 중의 HDL-cholesterol 농도 및 총cholesterol 농도에 대한 HDL-cholesterol 농도의 비율은 말쥐치기름 투여군이 올리브기름 투여군에 비해 대체로 높은 경향이었다. 4. 간장 중의 총 cholesterol 농도는 말쥐치기름 투여군이 올리브기름 투여군에 비해 약간 낮은 경향이었다. 5. 혈청 및 간장 중의 과산화지질의 농도는 말쥐치기름 투여군이 유의 적으로 높았으며 (P<0.05) vitamin E의 첨가량을 증가시킴에 따라 감소되는 경향이었다. 6. 혈청 및 간장 중의 α-tocopherol 농도는 말쥐치기름 투여군이 유의적으로 낮았다 (F<0.05). The Sprague Dawley male rats were fed experimental diets containing 10% file fish oil or 10% olive oil, and three graded levels of vitamin E(5,50 and 100 I.U./l00g diet) were provided for each test oil group. After two weeks feeding, the concentration of cholesterol, lipid peroxide and a-tocopherol in serum and liver of rats were determined. The results were summarized as follows. 1. The amount of body weight gain and food intake of rats were not significantly different among all the experimental groups but tended to slightly be low in rats fed file fish oil diet. 2. Total cholesterol concentrations in serum tended to be decreased as vitamin E level increased all of the file fish oil and olive oil diet groups, serum total cholesterol concentrations of the file fish oil diet groups were significantly lower than those of the olive oil diet groups. 3. HDL-cholesterol concentrations and the ratio of HDL-cholesterol to total cholesterol in serum generally tended to be higher on the file fish oil diet groups than those of the olive oil diet groups. 4. Total cholesterol concentrations in liver tended to slightly be lower on the file fish oil diet groups than those of the olive oil diet groups. 5. Lipid peroxide values in serum and liver were significantly high on the file fish oil diet groups and tended to be decreased as vitamin E level increased. 6. The concentrations of α-tocopherol in serum and liver were significantly low on the file fish oil diet groups.

      • 불연속 양단 자유보(미사일 모델)의 최대추진력에 관한 연구

        박영필,강승천 연세대학교 산업기술연구소 1985 논문집 Vol.17 No.1

        In this study, the dynamic stability of a launch vehicle with non-uniform mass and bending stiffness distributions is analyzed. The launch vechile is idealized as a free-free Euler-Bernoulli beam subjected to a controlled constant follower force. For the study, finite element model is formulated through the extended Hamilton's principle. The effects of the fuel consumption on the dynamic stability behavior of the launch vehicle is studied for various gains and locations of the direction control sensor.

      • 인공위성 데이터를 이용한 태풍에 의한 삼림피해의 추적조사

        崔勝弼,崔哲淳 관동대학교 1996 關大論文集 Vol.24 No.1

        One of the common applications of remote sensing is monitoring and evaluation vegetation over the land surface, and an important mechanism for assessing vegetation condition is the Normalisted Difference Vegetation Index(NDVI) which is widely used for analyzing vegetation conditions. Therefore, the NDVI was applied to trace survey for demage of collapsed forests by typhoon using satellite data. On a 1989-1994's NDVI results derived from the MESSR sensor, a damage tracing study on collapsed forests due to typhoon was elaborated for the damaged conditions collapsed and healthy forests. As a results of this research, we obtained the grasping possibility of forests damage condition due to typhoon using satellite remotely sensed data especially inside damage. It is very important keys that can be used to investigate the damage of natural disasters and forecast the second damages of typhoon.

      • 가시광을 이용한 ZnS/ZnO 상에서의 광촉매 반응에 의한 물로부터의 수소생성

        서승광,윤필상,이한수,이호인 한국공업화학회 2003 응용화학 Vol.7 No.2

        The pure ZnS can not absorb visible light because of its large band gap of 3.6eV. The ZnO/ZnS was obtained from partial oxidation of ZnS, and its band gap was 2.5eV where visible light can be absorbed. From XRD analysis, it was confirmed that only ZnO was formed during oxidation process but not ZnSO₄. In case of ZnO/ZnS, the quantum efficiency for the hydrogen evolution from water was 0.87% under visible light irradiation. In order to improve the interaction between ZnO and ZnS, ZnS/ZnO was prepared by precipitating ZnS on ZnO. After calcination of ZnS/ZnO, the band gap became narrow. The pure ZnO and the physically mixed ZnS-ZnO could not absorb visible light, but the ZnS-doped ZnO (ZnS/ZnO) could do. The band gap of pure ZnO was 3.2 eV and that of ZnS/ZnO was 2.5ev. The best activity was obtained when clcination temperature and time were 500 ℃ and 1 h, respectively. The quantum efficiency of ZnS/ZnO for the reaction was 3.29%.

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