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윤범수,장재훈,김헌주,한용표 대한신경외과학회 1983 Journal of Korean neurosurgical society Vol.12 No.4
Three cases of pontine hematoma accompanied by serious neurological symptoms with coma were treated surgically. All patients underwent suboccipital craniectomy with removal of hematoma and subsequently ventriculoperitoneal shunts were needed in all cases. Postoperatively all cases showed improvement with some neurological sequelae remained. Most of untreated pontine hematoma may be fatal, whereas surgical evacuation of the hematoma is safe and promising. We emphasize surgical treatment of pontine hematoma should be considered in any cases though they show serious neurological deficits.
윤범수,오연풍 한국스포츠학회 2023 한국스포츠학회지 Vol.21 No.1
이 연구는 복싱 판정의 공정성 제고 방안을 통해 심판의 역할과 전문성 확립을 제안하는데 목적을 두고 실시하게 되었다. 본 연구를 위해 복싱협회 관계자, 복싱 육성학교 지도자, 복싱관련 전공 교수 등 총 15명을 전문가집단으로 구성하 였다. 전문가집단을 통한 복싱 판정의 공정성 제고를 다음과 같이 도출하였다. 첫째, 복싱 판정 채점기준에 대한 공정성에 대한 의견은 복싱 심판들의 객관적 판단 강화, 명확한 채점기준 제시, 교육 및 연수 등을 통한 역량 강화, 학연 및 지연 등 주관적 채점 기준 배제. 실시간 득점표출 및 전자시스템 도입 등으로 나타났 다. 둘째, 복싱 심판의 공정성에 대한 의견은 주로 심판의 역량 강화와 오심에 대한 징계여부, 심판의 처우개선 등으로 나타났다. 셋째, 복싱 경기에 따른 이의신청 제도의 효과성을 위해서는 매 라운드별 리플레이 시스템 도입, 판정에 대한 결과는 매 라운드가 시작되기 전 공포, 실시간 활용가능한 이의신청 제도 도입, 경기 종료 후 이루어지는 이의신청 경기의 모니터링 등으로 나타났다. This study was conducted to propose the establishment of referees’ role and professionalism by improving the fairness of the boxing judgment. It organized a group of 15 experts including officials of boxing associations, coaches of boxing promotion schools, professors majoring in boxing, etc. It drew the following methods for improving the fairness of the boxing judgment from the expert group. First, the methods for improving the fairness of the boxing judgment scoring rubric including the enhancement of boxing referees’ objective judgment, the suggestion of a definite scoring rubric, the capacity building through education and training, the exclusion of subjective scoring rubrics such as school and regional ties, and the introduction of real-time score publication and electric systems. Second, the methods for improving the fairness of boxing referees including the capacity building of referees, penalties for wrong refereeing and the improvement of treatment for them. Third, the methods for improving the effectiveness of the objection system for boxing games include the introduction of the replay system by each round, the announcement of judgment results before each round, the introduction of the real-time objection system and the monitoring of games objected after the end of them.
윤범수,장재훈,김헌주,한용표,최중언,이규창 대한신경외과학회 1983 Journal of Korean neurosurgical society Vol.12 No.2
The authors represented a clinical analysis on 31 patients with medulloblatoma who had been treated surgically at the Department of Neurosurgery, Yonsei Medical Center and Wonju Christian Hospital from Sept. 1967 to Aug. 1981. The results were summarized as follows ; 1) Among 31 patients, 19 were male and 12 were female. About 73% of cases were found under the age of 16 and male was predominant in this age group. 2) The most common clinical symptom was that of increased intracranial pressure(84%). Gait disturbance, generalized seizure and mental change were also found and duration of symptom was average 2.2 month. Neurological signs showed papilledema, cerebellar signs and lower cranial palsies. 3) Plain skull X-rays, carotid and vertebral angiography and conray ventriculography were useful diagnostic methods but brain CT scan was thought to be the most accurate, noninvasive and helpful method which showed size and location of tumor and relationship with surrounding structures. In brain CT scan hydrocephalus and compression 4th ventricle were found in 94%, and 88% revealed contrast enhancement. 4) Considering 1 year survival rate which was possible follow up in this study, microsurgical total excision of tumor followed by radiation herapy disclosed the best result for reducing recurrence and seeding of tumor among the current therapeute methods.
복싱 스포츠클럽 청소년의 자율성지지와 심리욕구 사이에서 회복탄력성의 매개효과 분석
윤범수,오연풍 한국스포츠학회 2023 한국스포츠학회지 Vol.21 No.3
The objective of this study was to empirically understand the mediating effect of the autonomy support, psychological needs, and resilience of adolescents attending a boxing sports club. This study selected and analyzed 172 adolescents participating in a boxing sports club. Frequency analysis, exploratory factor analysis, reliability test, correlation analysis, multiple regression analysis, and mediation effect analysis using PROCESS macro were conducted to obtain the following conclusions. First, the autonomy support of adolescents attending a boxing sports club was positively correlated to resilience and partially and positively correlated with psychological needs. Second, the choice and excitement of adolescents attending a boxing sports club affected positivity, while all sub-variables of autonomy support positively influenced self-control capabilities. Third, the choice of adolescents attending a boxing sports club had a positive effect on autonomy, competence, and relatedness. Fourth, resilience was a mediator variable in the relationship between the autonomy support and psychological needs of adolescents attending a boxing sports club.
압축 응력 변화에 대한 압전 단결정의 물성 변화를 고려한 압전 복합재료 작동기의 작동 변위 예측
윤범수 ( Bum Soo Yoon ),박지원 ( Ji Won Park ),윤광준 ( Kwang Joon Yoon ),최현영 ( Hyun Young Choi ) 한국복합재료학회 2017 Composites research Vol.30 No.1
본 논문에서는 지능 구조물 작동기의 성능 향상을 위해 압전 단결정을 적용한 압전 복합재료 작동기 LIPCAS2를 설계, 제작하고 성능을 측정하였다. 외팔보 형태로 고정된 LIPCA-S2의 끝단 변위를 예측하기 위하여 공급 전압에 대한 압전 재료 작동층의 변형을 기반으로 곡률 변화 예측 모델을 적용하였으며, 실제 작동기의 성능을 측정하여 두 결과를 비교하였다. 외팔보 상태의 LIPCA-S2의 끝단 처짐에 대한 결과를 비교하였을 때, 예측 결과가 측정 결과에 비하여 4배 정도 크게 예측되었음을 확인하였다. 각 결과의 차이는 LIPCA-S2 내부에 삽입된 압전 단결정에 작용하는 압축 응력에 대하여 압전 단결정 특성이 영향을 미치는 것이라 가정하여, LIPCA-S2를 제작하는 과정에서 발생된 잔류 응력과, 작동층에 전압을 가하며 작동기를 구동했을 때 발생하는 응력 변화를 고전 적층 이론을 통해 계산하였다. 박판 압전 단결정에 평면 방향으로 압축 응력이 변할 때, 압전 변형상수의 변화와 탄성계수의 변화를 측정하였고, 이러한 특성 변화를 고려한 새로운 예측 모델을 활용한 예측 결과는 실제 측정값에 근접함을 알 수 있었다. In this study, LIPCA-S2 actuator with a piezoelectric single crystal layer and a carbon/epoxy layer was designed and evaluated to increase actuation performance of piezo-composite unimorph actuator. A curvature change model generated by the induced strain of a piezoelectric layer was used to predict the tip displacement of the piezocomposite unimorph cantilever. However, we found that there was big difference between the predicted and the measured tip displacement of LIPCA-S2 cantilever actuator when we used the previous linear prediction model. A new prediction model considering the change of piezoelectric strain coefficient and elastic modulus for the compression stress variation of the PMN-29PT single crystal layer was used and it was found that the difference between the predicted and the measured tip displacement reduced considerably.