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최종윤,손화영,전무형,조성환,김혜성,류시윤,박배근,이영원,윤원기 충남대학교 수의과대학 동물의과학연구소 2001 動物醫科學硏究誌 Vol.9 No.-
Two farmed young ostrich chicks were applied to pathology laboratory at Chungnam National University. Grossly, one ostrich showed rotated tibiotarsus, the other showed rolled toes. Case 1 ostrich was hypertrophy of fibualis longus and tibial cranialis tendon and gastrocnemius tendon in crus, inflammation of flexor digitorum longus. In histopathological views, myocytes of fiburalis longus were showed hypertrophy and hyperplasia. It is not found any specific feature in X-ray of the case 2 ostrich. Limb deformities were detected frequently in farmed ostrich chicks in 2- to 3 weeks old. Limb deformities were an important cause of mortality in farmed ostrich chicks during the first 10weeks after hatch. Cause of limb deformities were considered a nutrition problem.
運動種目別로 본 PWC_(170)時에 發現되는 運動能力에 관한 比較硏究
최영근,김상국,김정주 경희대학교 체육대학 한국체육과학연구소 1984 體育學論文集 Vol.12 No.-
With two Gymnastics players, three Basketball players, four Baseball players, four Football players as the Subjects, this study was made in order to reveal the degree of Physical Work Capacity (PWC) 170 by measuring how Heart Rate would change when they run on the Treadmill. The Results are as following: 1. In max Heart Rate, Baseball players were the highest as 209.00±4.90 beats/min, Gymnastics players were 195.50±3.54 beats/min, Football players were 192.00 ± 7.02 beats/min and Basketball players were the lowest as 187.00 ± 8.89 beats/min. 2. In max Running time and Running distance, Football players were the highest, 11.66 ± 0.59 minutes as Running time, 2450.3 ± 151.28m as Running distance, Basketball players were 11.21 ± 1.73 minutes and 2358.9 ± 381.77m, Baseball players were 10.69 ± 0.47 minutes and 2256.9 ± 104.60m and Gymnastics Players were the lowest, 8.50 ± 0.03 minutes and 1721.80 ± 9.90m. 3. In Heart Rate increase while they run on Treadmill, it was totally the highest in Baseball players, and was appeared orderly in Gymnastics players, in Football players, and in Basketball players. % HR max was appeared generally that Gymnastics players were appeared the highest, and was appeared orderly Baseball players, Basketball players, Football players. 4. In Heart Rate change while the Recovery, the Basketball players were appeared generally low Heart Rate at the Sometime, and was appeared orderly Football players, Gymnastics players, Baseball players. % H.R. max, Basketball players was recovered the fastest speed. Within 4min recovery it was appeared quickly that was orderly Basketball players, Baseball players, and after 4min was appeared orderly Basketball players, Gymnastics players, Baseball players, Football players. 5. In PWC 170 test, Basketball players were appeared superior that 9.09 min in Running time and 1781.0m in Running distance, and 240m/min in load and 6% in slope. And next Football players were appeared 7.27 min in Running time, 1463.4m in Running distance, 220m/min in load, and 5% in slope, Gymnastics players were appeared 5.53 min in Running time, 968.0m in Running distance, 200m/min in load and 4% in slope. Baseball players were appeared inferior that was 12 min in Running time, 704.0m in Running distance, 200m/min in load, and 4% in slope.
돼지 신장세포(PK15)의 이종이식 거부반응에 대한 재조합 IL-18의 영향
최연실,김은미,김영관,박상연,심정현,윤도영,강형식,명평근 충남대학교 생물공학연구소 2004 생물공학연구지 Vol.10 No.1
Various cytokines including IL-1β, IL-2, IL-4, IL-10, IL-12p40, IFN-γ, and TNF-α have been recently reported to play important roles in both host and donor cell activations during xenotransplantation. Interleukin (IL)-18, a proinflammatory cytokine, can induce IL-4 and IL-13 production in T cells, NK cells, B cells, mast cells, and basophils. IL-18 has the capacity to stimulate innate immunity and both Th1-and Th2- mediated responses, but little is known to involve in the xenograft rejection. In order to investigate the role of IL-18 in xenograft rejection, we transplanted the pig kidney (PK15) cells to C57BL/6 mouse with or without intraperitoneal injection of mouse recombinatant IL-18. It was analyzed the population of T cell, B cell and NK cell in the mice transplanted with PK 15 cells and recombinant IL-18 by flow cytometry. We found that splenic CD3+ T cells were increased in mice injected PK15 cells with recombinant IL-18. These results suggest that recombinant IL-18 is critical in the xenograft rejection by increasing T cell population of the recipients.
최연선,박근영,배성준 成均館大學校 科學技術硏究所 1997 論文集 Vol.48 No.1
Modal analysis is a fundamental procedure to analyze the dynamic characteristics of structures or machines. Modal analysis is composed of theoretical modal analysis using finite element method and experimental modal analysis. The discrepancy between these two makes modal analysis difficult and ususally comes from misunderstandings on boundary conditions of the structure. Boundary condition effect in modal analysis is investigated theorectically and experimentally in this study for a rod and a beam. The result shows that boundary condition affects on lower modes, but can be ignored for higher modes. Boundary condition can be modeled by a spring and a damper having finite values. Using this spring and damper model, the boundary conditions of a theoretical modal analysis model can be corrected by comparing the results of experimental modal analysis.
향토음식 인지도에 관한 실증적 연구 : 경남 하동군 지역을 중심으로 with respect to Hadong-Gun Area, Kyungsangnam-Do
최수근,이연정,박성수 한국식생활문화학회 2004 韓國食生活文化學會誌 Vol.19 No.3
Rather than focusing on the general recognition of the area and extensive preference about its native cuisine, this study carried out more practical examination on the recognition of the native cuisine by presenting the more detailed introduction of the native cuisine in Hadong area. The findings of this study can be used as basic materials to devise measures for the instillation and advertisement of Hadong area's image, the development and maintenance of its native cuisine benefiting the activation of the local economy, and the reestablishment of Hadong area's native cuisine culture. First, the overall recognition of Hadong area's native cuisine was low and more consumption needs to be boosted by merchandising its foods through the strengthening of recognition. Second, correlation between this area's native cuisine was revealed and tables need to be set and menus need to be organized with this correlation in mind. Basic materials for suggestion sale were garnered. Third, given that most outside tourists visit Hadong by word mouth of all the information sources available, it is highly likely that positive word of mouth through satisfaction with native cuisine will raise the overall recognition of the area. Fourth, precise subdivision market and target market need to be specified. Though the factors like economic costs and the time required cannot be overlooked in strengthening recognition, consistent advertisement to the middle-aged people who are over 40 and live in Kyungsang-Do area will contribute to the fast rise in the recognition of Hadong area's native cuisine, leading to the possibility of economic development in the process.
우리나라 대학교 관광관련 전공 재학생의 교육기대수준에 관한 연구 : 6개 대학교 재학생을 중심으로 : 강릉대학교, 경주대학교, 세종대학교, 숙명여자대학교, 순천향대학교, 한양대학교
최영민,이성근 한국문화관광학회 2001 문화관광연구 Vol.3 No.2
The main aim of this paper is to examine education expectation level of students majoring culture and tourism at universities in Korea. From the previous studies, Authors drew three general factors of educations of students (knowledge/humanity/ professional way). This study identifies the relation between three education factors mentioned and education environment of students(year/ sex/ major operation system). The data were collected from survey questionnaires on six universities for 3 month from late March to early July 2001. The empirical test is focused on discovering following points; - the efficiency of actual education operation system of universities - the differences of education expectation according to different academic year/ sex - the comparison of characteristics related to education expectation of university students
확산화염 반응기를 이용한 TiO_2 광촉매 제조 및 페놀 및 톨루엔 광분해 응용
최상근,김교선 江原大學校 産業技術硏究所 2002 産業技術硏究 Vol.22 No.B
We prepared the nano-sized TiO_2 particles by the diffusion flame reactor and investigated the effects of several process variables on the generation and transport properties of TiO₂particle. As the length from the tip of diffusion flame reactor increases, the size of TiO_2 particle increases by the coagulation between particles. The structure of TiO_2 particles prepared is almost found to be anatase. It was found that the TiO_2 particle size depends more largely on the change of reactor temperature than on the change of inlet TiO_4 concentration. By the photo-degradation experiment of phenol and toluene with the prepared TiO_2 particles, we found that the photo-degradation efficiencies of phenol and toluene change, depending on the process variables such as size of TiO_2 photocatlysts, concentration of phenol or toluene. Degradation efficiencies of phenol and toluene was above 90% in our experiments in 60 minutes.