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우현정(禹賢貞) 교육사학회 2013 교육사학연구 Vol.23 No.2
이 연구의 목적은 『반계수록』「제학선제부」에 나타난 반계 유형원의 잡학교육개혁안을 살펴보고, 그가 인식한 17세기 잡학교육의 문제점이 당시 실제 ‘잡과방목’에 나타난 입격자들의 선발 인원과 사회적 지위, 입격 당시 직위 등을 통해 볼 때 적절하였는지를 확인하고자 하는 것이다. 「제학선제부」에서 나타난 반계 유형원의 잡학교육개혁안에는 당시 잡학 취재와 잡과 선발 인원이 과다한 것으로 판단하였으며, 잡학 종사자에게 정직과 정록이 제공되지 않아 입격자들의 능력과 사회적 지위가 낮다는 것을 문제시 하고 있다. 따라서 이런 문제점을 해결하기 위하여 잡학 취재와 잡과 선발 인원을 줄이고, 줄어든 인원에 대한 적절한 보상을 제공하여 잡학의 위상을 전체적으로 높이고자 한 것을 확인할 수 있다. 그러나 ‘잡과방목’에 나타난 17세기 잡학취재와 잡과에 합격한 이들의 수는 당시 법전인 『경국대전』의 규정 인원보다 비교적 적었으며, 합격 당시의 본인과 가계의 사회적 지위가 상대적으로 높고 전공을 학습하기 위한 배경 또한 마련된 것으로 확인되었다. 또한 기술관으로 입격한 자들 중 상당수의 품계가 승급되어 반계가 제기하고 있는 당시 문제점 중 재검토되어야 할 부분이 상당히 존재하였다.
Phase separation suppression in InxGa1xN on a Si substrate using an indium modulation technique
우현석,조한솔,김종민,조상은,조용철,노정현,이준호,서용곤,박정호,김형상,한철구,임현식 한국물리학회 2017 Current Applied Physics Vol.17 No.8
A high quality, single phase InGaN film is fabricated on a GaN/Si (111) substrate by optimizing the pulse patterned In supply with a plasma-assisted MBE technique. Compositional phase separation in InGaN is considerably suppressed. The optical and structural properties of the single phase InGaN epitaxial film are consistently confirmed by atomic force microscopy, X-ray diffraction and photoluminescence measurements. We propose a growth mechanism for single phase InGaN in terms of optimal incorporation and surface migration of In atoms.
Solitary Lumbar Spinal Osteochondroma Presenting with Sciatic Pain: A Case Report
우현진,조대철,배광주,성주경 대한척추신경외과학회 2010 Neurospine Vol.7 No.3
Osteochondroma is one of the most common benign bone tumors, but only 1-4% involve the spine. They make up 0.4% of intraspinal tumors. Herein, we report on a solitary osteochondroma of the lumbar spine presenting with sciatica. A 54- year-old male patient visited our institution, complaining of right leg pain of 2 months duration. His neurological examination revealed a limited right straight-leg-raising test result, motor weakness of right great toe dorsiflexion, and L4-L5 hypoes- thesia. Lumbar computerized tomographic(CT) scan and magnetic resonance (MR) imaging studies revealed a tumor mass arising from the inferior articular process of the L3. There was marked improvement of the symptoms after surgical removal of the lesion. Symptoms showed marked improvement after surgical removal of the lesions. Histopathologic examination confirmed the diagnosis of benign osteochondroma.
우현재,배창훈,송시연,김용대 대한이비인후과학회 2008 대한이비인후과학회지 두경부외과학 Vol.51 No.4
Renal cell carcinoma (RCC) has a high incidence of metastasis to any location in the body. This tumor metastasizes to the head and neck region in 15% of cases, whereas metastasis to the sinonasal area or to the mouth floor is rare. None of the cases of the RCC that are metastatic to both sites (sinonasal area and mouth floor) has been previously described. Recently, we experienced a case of metastatic RCC involving the nasal cavity and the mouth floor that were managed by local excision and postoperative radiotherapy. Because of its unpredictable clinical behavior, a long term follow-up is essential for early detection of recurrent or residual lesion of RCC. (Korean J Otorhinolaryngol-Head Neck Surg 2008;51:380-3)
고등학교 축구선수의 포지션별 기초체력, 등속성 근력 및 무산소성 파워 비교 분석
우현석(Woo, Hyeon-Seok),허유섭(Huh, Yu-Sub) 한국체육과학회 2020 한국체육과학회지 Vol.29 No.4
This study"s purpose is to furnish basic dat a for training programs, injury prevention, and rehabilitation therapy to improve exercise ability and performance in various levels by analyzing basal physical fitness, isokinetic strength and anaerobic power in each position among high school soccer players. For the subjects, 21 high school soccer players were compared and analyzed for basal physical fitness, isokinetic muscular strength of lower limbs and anaerobic power. Mean and standard deviations were estimated using SPSS WIN(Ver. 19.0) for data analysis. One-way ANOVA was conducted for analysis on basal physical fitness, isokinetic muscular strength of lower limbs, and anaerobic power. The study findings are as follows: 1. As a result of comparing basic physical strength in each position among high school soccer players, there were statistically significant differences found among groups in back strength and body reaction(p<.05). 2. As a result of comparing isokinetic muscular force of knee joints in varying positions among subjects, statistically significant differences were found among groups in the right knee extensor muscle at 180° per second(p<.05) and the right knee flexor muscle at 240°/sec(p<.05). 3. As a result of comparing anaerobic power in each position among subjects, peak and mean power didn"t have statistically significant differences(p>.05). In conclusion, taking all the results of basic physical strength, isokinetic muscular strength and anaerobic power among high school soccer male players into consideration, factors and abilities of fundamental basic physical fitness are similar. However, it would be helpful to exercise individually more in order to improve physical strength and skills needed in each position. Research should be continually conducted to develop training programs for each position and objectify them.