A Case of Hobnail Hemangioma

(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).

A Case of Hobnail Hemangioma

Oh, Shin Taek,Lee, Seung Dong,Kim, Sung Wook,Jang, In Gang,Cho, Baik Kee Korean Dermatological Association 2002 Annals of Dermatology Vol.14 No.1

批判的 思考의 本質과 批判的 思考敎育에 관한 探究

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.

하악골 전돌증 수술 후 하악골 이동량에 따른 발음 양상에 관한 비교 연구

신기영,이동근,오승환,성헌모,이숙향 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.1

After performing mandibular setback surgery, we found some changes in patterns and organs of speech. This investigation was undertaken to investigate the aspect and degree of speech patterns according to the amount of surgical setback in mandibular prognathic patients. Thirteen patients with skeletal Class Ⅲ malocclusion were studied preoperative and postoperative over 6 months. They had undergone the mandible setback operation via bilateral sagittal split ramus osteotomy(BSSRO). We split the patients into two groups. Group 1 included patients whose degree of mandibular setback was 6mm or less, and Group 2 above 6mm. Control group was two adults wish normal speech patterns. A phonetician performed narrow phonetic transcriptions of tape-recorded words and sen- tences produced by each of the patients and the acoustic characteristics of the plosives, fricatives, and flaps were analyzed with a phonetic computer program (Computerized Speech Lab(CSL) Model 4300B(USA) ). The results are as fallows : 1. Genera1ly, Patients showed longer closure duration of plosives, shorter VOT(voice onset time) and higher ratio of closure duration against VOT 2. Patients showed more frequent diffuse distribution than the control group in frication noise energy of fricatives. 3. In fricatives, frequency of compact from were higher in group 1 than in group 2. 4. Generally, a short duraction of closure for /ㄹ/ was not realized in the patient's flaps. Instead, it was realized as fricatives, sonorant with a vowel-like formant structure, or trill type consonant. 5. Abnormality of the patient's articulation was reduced, but adaptation of their articulation after surgery was not perfect and the degree of adaptation was different according to the degree of surgical setback.

점막유표피암종의 치험례

신민철,윤옥병,오승환,김여갑,이상철,신민철 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.1

Mucoepidermoid carcinomas, first reported by Volkman(1895), form 6% to 9% of all salivary tumors. Two thirds affecting the parotid gland and the remaining third, the minor glands. As we could know from its name, mucoepidermoid carcinomas originate from ductal epithelium including squamous, mucous-secreting, and undifferentiated intermediate cells. Histologically, it is classified as well-differentiated (low grade), moderately-differentiated(intermediate grade), and poorly-differentiated (high grade) types and the treatment method and prognosis are influenced from its histological grade. We have experienced two cases of mucoepidermoid carcinoma treated surgically with good results and now would like to report these with review of literatures.

增水時 山林地域에서의 流出特性 및 負荷量 算定

오종민,신동엽 경희대학교 환경연구소 1999 環境硏究 論文集 Vol.9 No.-

Seasonal variation of streamwater quality was observed every months from May 1997 to April 1998. Beside, temporal variation of streamwater quality and discharge were examined during rainfall-runoff period. Based on these data, we evaluated annual loading of pollutants discharged from forest basin. Main results obtained in this paper are as follows: Annual average pH was 7.31 and percentage of saturated DO concentration was represented 89-96% in each site. Streamwater quality was determined by amounts of rainfall, soil profile of sites and recharging underground water in rainy days. However, Streamwater quality was determined by only recharging underground water in sunny days. Annual runoff loading was investigated that Ca^(2+) is 23.8 ton/yr, Na^(+) is 7.0 ton/yr, K^(+) is 2.4 ton/yr. Cl^(-) is 1.9 ton/yr, NO_(3)-N is 1.6 ton/yr, Mg^(2+) is 1.7 ton/yr and SO_(4)^(2-) is 2.6 ton/yr. In rainy days, runoff loading was contributed to annual loading about 20%.

3-deoxyglucosone에 의한 단백질의 modification

신동범,오상환,양융 연세대학교 산업기술연구소 1990 논문집 Vol.22 No.1

pH 7.4, 37℃의 생리적 반응조건에서 HSA, ovalbumine, BSA, lysozyme, RNase A 및 IgG와 3-deoxyglucosone을 반응시키고 단백질의 중합현상과 아미노산 잔기의 손상상태를 연구하였다. 3-deoxyglucosone은 모든 단백질을 중합시킬 수 있으나 특히 lysozyme, RNase A 및 IgG를 현저하게 중합시켰다. 또한 Arginine잔기를 크게 손상시켰다. glucose에 의한 단백질의 중합과정은 glucose가 단백질의 아미노 그룹과의 반응으로 3-deoxyglucosone을 형성시키고, 이것이 단백질의 lysine 잔기와 arginine 잔기를 공격하여 cross link를 형성시키는 것으로 추정되었다. Human serum albumin, bovine serum albumin, ovalbumin, IgG, lysozyme and ribonuclease A were reacted with 3-deoxyglucosone under physiological conditions of 37℃ and pH 7.4, and polimerization of proteins and impairments of amino acid residues were investigated. Proteins tested, especially lysozyme, IgG and ribonuclease A, were polymerized significantly, and lysine residue and arginine residue, espectially arginine residue of proteins were impaired remarkably. Experimental results strongly suggested 3-deoxyglucosone, formed from proteins-glucose reaction system, was the cross-linker responsible for the polymerization of proteins.

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.

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.

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.