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경증 및 중증 외상성 뇌손상 환자의 성격평가 질문지 프로파일
권석준,노승호,Kweon, Seok-Joon,Rho, Seung-Ho 대한생물정신의학회 2005 생물정신의학 Vol.12 No.1
Objectives:This study was designed to investigate the characteristics of personality changes and emotional distress using the Personality Assessment Inventory (PAI) in patients with traumatic brain injury(TBI), divided into mild (MTBI) and severe (STBI) groups according to the severity of injury. Methods:The subjects were consisted of 25 patients with MTBI, 25 patients with STBI, and 25 normal controls. They were interviewed with the PAI. The data were analyzed by ${\chi}^2$ test, analysis of variance and Tukey test. Results:The results were the followings. First, Negative Impression in validity scales was elevated above cutoff point(T score 70) in both MTBI and STBI groups. Second, the clinical scales of which scores elevated above the cutoff point were Somatic Complaints, Anxiety, Anxiety-Related Disorders, Depression, and Schizophrenia in the MTBI, and Somatic Complaints and Depression in the STBI. Third, the clinical subscales above the cutoff point were Conversion, Somatization, Health Concerns, Affective Anxiety, Physiological Anxiety, Traumatic Stress, Cognitive Depression, Affective Depression, Physiological Depression, Thought Disorder, and Affective Instability in the MTBI, and Health Concerns, Cognitive Depression, Affective Depression, and Physiological Depression in the STBI. Fourth, Suicide Ideation in treatment scales was the only scale above the cutoff point in the MTBI and the others of the treatment and interpersonal scales in the MTBI and all of these scales of the STBI were not elevated above the cutoff point. Fifth, the scales of which scores showed significant difference between the MTBI and the STBI were Somatic Complaints, Anxiety, Depression, and Suicide Ideation, the subscales were Conversion, Somatization, Health Concerns, Affective Anxiety, Physiological Anxiety, Physiological Depression, and Psychotic Experiences. Conclusion:These results suggest that the patients with MTBI had more somatic and anxiety symptoms, depressed mood, and suicidal ideation than the patients with STBI. These characteristics are generally consistent with clinical observation and findings from previous studies of the patients with TBI, and the PAI seems to be a beneficial adjunctive assessment tool for the evaluation of patients with traumatic brain injury.
1LJ-2 Fabrication and Applications of Plasmonic Nanostructures
권석준 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1
It has been conjectured that the constructive interferences of diffused electromagnetic waves in a disordered sub-wavelength nanostructures can contribute to the enhancement of near-field in 2D plasmonic structures. In this study, we demonstrated disordered plasmonic media comprised by sub-wavelength metallic nanostructures. The disordered nanostructures are deliberately designed to localize enhanced nearfield. The induced field finally results in enhanced near IR-to-visible light upconversion (UCL). In order to form plasmonic hot-spots, we fabricated self-assembled array of Ag nanoparticles over a plasmonic substrate containing UC nanoparticles. We also employed a randomly aligned network of Ag nanowires to support Fabry-Perot resonance mode. We observed the formation of strong near-field of near IR around the Ag nanostructures. We also observed reinforced nano-antenna effects given by the randomized nanostructures.
권석준,김종욱,김해동 한국항해항만학회 2011 한국항해항만학회 학술대회논문집 Vol.2011 No.춘계
해안과 해상에 설치되어 운용되고 있는 등명기의 광학적인 성능검사는 현재 검사 장비를 구비한 지정된 검사소에서만 실시되고 있으며, 이러한 정기검사는 등명기 탈착, 이송, 검사, 재설치 과정에서 비용과 시간이 많이 소요되고 있다. 본 연구에서는 해상용 등명기들이 설치되어 운용되고 있는 현장에서 즉석 검사가 가능한 휴대용 소형 배광장비를 개발하고자 한다.
권석준(Seok Jun Kwon),김영갑(Young Kab Kim),최병학(Byung Hak Choi) 한국사회체육학회 2011 한국사회체육학회지 Vol.0 No.43
In this study, users of bowling centers located in Yeongju city Gyeongsangbuk-do were surveyed with written questionnaires using the simple random sampling method. Among the 397 questionnaires completed and returned, undependable questionnaires were excluded and l total of 366 questionnaires were analyzed and used, processed with statistical methods such as SPSS 12.0, frequency analysis, descriptive analysis, correlation analysis, and regression. The following conclusionis suggested by using above method and processes. First, the impact of motives for participation on leisure satisfaction can be elaborated as: On psychological satisfaction, enjoyment had a significant impact; on educational satisfaction, health and fitness; on social satisfaction, skill development; on recreational satisfaction, health and fitness; on environmental satisfaction, skill development. Second, the impact of motives for participation on exercise addiction can be elaborated as: On withdrawal symptoms, skill development had a significant impact; on exercise needs, enjoyment; on emotional attachment, physical condition. Third, the impact of leisure satisfaction on exercise addiction can be elaborated as: On withdrawal symptoms, educational satisfaction had a significant impact; on exercise needs, environmental satisfaction; on emotional attachment, psychological satisfaction.
일시적 불확실성을 갖는 DC 모터 시스템을 위한 유한 기억 구조 필터링
권석준(Seok Jun Kwon),김평수(Pyung Soo Kim) 제어로봇시스템학회 2018 제어·로봇·시스템학회 논문지 Vol.24 No.6
In this paper, the finite memory structure (FMS) filter is applied for the estimation filtering of DC motor systems with temporary uncertainties. A couple of temporary uncertainties, model uncertainty and unknown input, are considered for the FMS filtering. Extensive computer simulations are performed for both nominal system and temporarily uncertain system. It is shown that the FMS filter can be better than the infinite memory structure (IMS) filter for temporary uncertainties. Of course, the IMS filter can outperform FMS filters after the effect of temporary uncertainties completely disappears. It is also shown that there can exist the trade-off between the estimation error and the tracking ability in terms of the window length.