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(Shin Taek Oh),(In Gang Jang),(Sung Wook Kim),(Baik Kee Cho),(Seung Dong Lee) 대한피부과학회 2002 Annals of Dermatology Vol.14 No.1
N/A Hobnail hemangioma(HH)is a benign acquired vascular tumor of endothelial origin which should be differentiated from other malignant vascular neoplasm such as Kaposi`s sarcoma or angiosarcoma.We report a case of hobnail hemangioma in a 21-year-old woman who had a dusky-red patch on her left shin.Histologically,ectatic vascular channels with a single layer of plumped endothelial cells were seen and the vascular channels seemed to dissect the collagen bundles.She underwent treatment with surgical excision with primary closure. (Ann Dermatol 14(1)45-47, 2002).
鐵棒 1回, 2回 및 3回 뒤공중돌아내리기의 比較 分析
申榮吉,金柄斗,安禹洪,金正子,吳東燮,朴宇奎 慶北大學校 體育科學硏究所 1987 체육과학연구지 Vol.3 No.-
The purpose of this study was to offer gymnasts data for successfully performing triple back somersault dismount(TBSD) and for designing training programs to progress gymnasts to the advanced dismount skills from the horizontal bar through comparative analysis of selected biomechanical factors of single back somersault dismount(SBSD), double back somersault dismount(DBSD) and TBSD. The subjects employed were a total of 4 male middle and high school gymnasts aged between 15 and 16 years. A motion-picture camera, fliming at a nominal rate of 54 frames/s, was used to record the performance of subjects on each trial. This camera was placed at a distance of 15 m from the inward pole of horizontal bar with its optical axis at right angle to this pole. The results obtained are summarized as follows: The mean release angle was 80.5° for the SBSD, 77.3° for the DBSD and 71.3° for TBSD. There were significant differences between the SBSD and the TBSD(p<0.01), the DBSD and the TBSD(p<0.05) but no significant difference between the SBSD and the DBSD. The angular velocity at release was 4.533 ㎭/s for the SBSD, 5.338 ㎭/s for the DBSD and 6.020 ㎭/s for the TBSD. There was a significant difference among these velocities(p<0.05, p<0.01). The linear velocity at release was 5.458m/s for the SBSD, 5.750m/s for the DBSD and 6.083m/s for the TBSD. In this case, we had a significant difference only between the SBSD and the other two somersaults(p<0.05, p<0.01). The shoulder angle at release was 170.5° for the SBSD, 167.0° for the DBSD and 154.3° for the TBSD. There were significant differences between the SBSD and the TBSD(p<0.05), the DBSD and the TBSD(p<0.05) but no significant difference between the DBSD and the TBSD. The hip and knee angle at release were increased respectively by increasing the number of somersault but showed no significant difference among these angles. The mean flight time from release to landing for each somersault was calculated; it took the subjects 1.315s to perform the SBSD, 1.345s to perform the DBSD and 1.416s to perform the TBSD. There was a significant difference among these somersaults with respect to time(p<0.05, p<0.01). The mean maximum height was 3,633m for the SBSD, 3,720m for the DBSD and 3,780m for the TBSD. There was a significant difference only between the SBSD and the other two somersaults. The mean horizontal distance was decreased respectively by increasing the number of somersault but showed no significant difference among these somersaults with respect to distance. The smallest hip angle during flight in the SBSD was 115.3° at 0.317s after the subject left the bar, for the DBSD it was 48.2° at 0.621s while that of the TBSD was 32.3° at 1,102s after release. The relationship between the time the smallest hip angle observed and the total flight time was determined; it took 24.1% of the total flight time of the SBSD to reach the smallest hip angle. In the DBSD, it took 46.2% of the total flight time to reach for the smallest hip angle and in the TBSD 77.8% of the total flight time to reach the smallest hip angle. From the above results, the gymnast would need to (1) increase angular velocity before release by manipulating of body shape, (2) change the release angle and (3) stay tuck position longer by shortening as quickly as possible the angle of each body joint to perform successfully the TBSD. Also to be able to perform quadruple back somersault dismount, a gymnast would need flight time of a minimum 1,782s.
신동환,최이송,박재영,오종민 경희대학교 2003 環境硏究 論文集 Vol.12 No.-
In this study, the variation of water quality in Aswan stream was investigated through continuous monitoring and matt balance and metabolism occurred into water body environment was estimated to set up effective management plan of small urban stream. Sated on the results, the rate of output to input (O/I rate. in the flux balance was 1.16 and about 16% sae increased between the section of OS1 ∼ OS3. Also, the SS and BOD loadings between the tame section were increased by 29% and 31%, respectively. Although increase of flux influenced on the increase of SS and BOD loading, it was judged that the larger part of o/I rate of pollutants comparing to O/I rate of flux was due to up-take from sediment on the riverbed. The contribution percentage of BS1 and BS2 for flux between the section of OS1 ∼ OS2 was 17.3%, total section was 31.3% (including BS3). However, the contribution of tributaries for SS, BOD and T-N loading wore 50.3%, 33.0% and 57.6%, respectively. Eventually tributaries contributed the pollution of water quality. To reduce pollution of water quality in the section of OS1 ∼ OS3, firstly, it need that effective management plan for tributaries mutt be set up to improve the water quality in main stream. Secondly, the counter plan for ro-eruptyon of pollutants from sediment in main-stream it required to prevent inner pollution. On this study, we showed that small urban stream can be managed effectively by simple investigation to prevent deterioration of water quality. also, it is more important that matter cycle and matt balance happening in the stream environment must be correctly estimated to make up healthy stream environment and to improve water quality.
지로용지 영상의 실시간 압축 및 인식처리를 위한 하드웨어 설계 및 구현
신동욱,오승환 한국기술교육대학교 2001 論文集 Vol.8 No.1
ABSTRACT In this paper, we proposed the algorithms for real time compression and recognition of giro paper image data which is serially inputted by 1 bit unit. Those algorithms are designed and implemented with PLD, and their propriety is confirmed.
신동로,오현수 全北大學校 敎育大學院 1998 敎育論叢 Vol.18 No.-
The purpose of this study is to examine the history of the terms 'a critical thinking' and to survey the nature and the education of one. The critical thinking movement seems to have begun with the work of John Dewey from 1910 to 1939 and his use of the terms 'reflective thinking' and 'inquiry' which he based on the scientific method. From 1940 to 1961, the meaning of the term 'critical thinking' broadened to include the examination of statements. From 1962 to 1979, The meaning of the term 'critical thinking' narrowed to exclude problem solving and the scientific method and include only the assessment of statements. With the contributions of Robert H. Ennis, John E. Mcpeck. Harvey Siegel, and Richard W. Paul from 1980 to the present, the meaning of the term 'critical thinking' has broaden to include aspects of problem solving. The meaning of the terms 'critical thinking' and 'problem solving' overlapped and intersected each other. The core meaning of the critical thinking is the propensity and the skills for participate in the thinking activities with the reflective skepticism about the objects of thinking within one's cognizance. The aims for the teaching of critical thinking and reasoning is to be well used the logical skills to judge about the decision-making and problem solving situation. Formal and informal logical education is essencial to success for the education of critical thinking. The education of critical thinking have to be learned through the debate and the discussion.
침지식 한외 여과막을 이용한 무산소/혐기 교대운전형 반응조의 질소·인처리에 관한 연구
신대윤,김동임,권오상 조선대학교 환경공해연구소 2004 環境公害硏究 Vol.18 No.-
Nowadays, Water is deteriorating with several reasons such as increase of wastewater which is flowed into river and limitation of water resource. In this study, reuse water system was configurated using submerged membrane bioreactor(SMBR) system consisted of anoxic, selector, and aerobic tank with membrane to concentrate on plans for securing of water resource by reusing wastewater treatment effluen. This study was examined the feasibility of applying a Intermittently Internal Recycle Membrane Bioreactor to household wastewater treatment. The bioreactor was intermittently recycle to alternate anaerobic/anoxic condition while find was entered the early stage of anoxic period and membrane filtration occurred during aeration period. With about 5,000㎎/L of MLSS , 94.4% of TCOD_(Mn), 49.6% of T-N and 56.8% T-P, With about lO.OOO㎎/L of MLSS 94.0% of TCOD_(Mn), 51.3% T-N and 49.7% of T-P and With about lO.OOO㎎/L of MLSS (anoxic 1hr, anaerobic 2hr) 96.6% of TCOD_(Mn), 67.2% of T-N and 53.0% of T-P could be removed. Therefore, this study confirmed the possibility of the domestic water treatment using membrane bioreactor process with Intermittently internal recycle.
중학교 남녀학생별 가정교과에 대한 인식 및 학습효과 : 경남지역을 중심으로
신동순,김상희,오화자,정효숙,정혜경 한국 가정과 교육 학회 1997 한국가정과교육학회지 Vol.9 No.1
The aims of this research study is to clear the differences of the learning effects and the cognition of Home Economics by sex in the middle school and to collect the future-oriented educational datas, after implementing the 6th education curriculum. The results of the study are as follows ; 1. Most of students had the cognition that Home Economics is a subject matter of a needful knowledge and skill for the family life, half students a cultural subject matter for the modern life. The former was supported by female students, the latter by male students. 2. Most of students were interested in actual training fields of cooking and hand-sewing, had a strong interest about a field of physical and social-psychological growth. The differences by sex were statistically significant in these fields. 3. Most of students had positive responses in the learning effects of Home Economics. The most useful field was cooking and the worst was the structure and method of sewing machine. 4. The shortage and the dissatisfaction in the learning of Home Economics were lacking of the actual training hours, the old-fashioned teaching methods and the shortage of teaching materials etc.
吳英敏,申東英 東亞大學校 1978 東亞論叢 Vol.15 No.2
The laboratory experiments on the basis of cation exchange of zeolites were carried out to remove ammonia nitrogen adn trace heavy metals from water using the natural zeolites produced at Youngil and Weolseong. And some results obtained are summarized as follows: 1. X-ray diffraction showed that zeolites heated to the temperature over 800℃ for one hour were decomposed in its crystal structure. 2 The constants in the Freundlich adsorption isotherms for the metal ions show the adsorption of lead ion is the best of the four metal ions: Cu, Pb, Cd, and Cr. 3. Time for adsorption of the heavy metals is less than 60 minutes with 150 rpm in a batch system. 4. The optimum pH for adsorption of the heavy metal ions was 6 to 7; in lower than pH4 it showed poor adsorption adn in higher than pH7 hydroxides of the metals occurred. 5. Ion selectivity of the zeolites was shown in order of Pb++> Cr++ > Cu++ > Cd++. 6. Regeneration of the ammonium zeolites (spent zeolites) by heating at 700℃ is the most effective in reuse of it with having ammonia removal rate of more than 50 per cent.