Dick & Carey의 교수설계 모형을 적용한 투상도 프로그램 개발

박기창 이화여자대학교 대학원 1993 硏究論叢 Vol.25 No.-

학습이론과 매체활용에 관한 고찰

박기창 陸軍士官學校 1995 한국군사학논집 Vol.48 No.-

Since the 1980's there has been a movement toward a critical reflection on both the limitation and the power of learning theory itself. The purpose of this study is to review of the theoretical trends and issues of learning theory, particularly the implications of instructional system design and the media utilization(multimedia, virtual reality) of the constructivism. Several problems in relation to instructional system design and the media utilization could be identified. The major problems among these were 1)limits of media and facilities, 2)limits of experts and good software, 3)difficulties of application in the classroom. In order to tackle these problems a more coherent management of, and a stronger support for the teacher re-education and planning for educational technology use on the national level are recommended.

긴장형 정신분열증으로 진단되었던 일본뇌염환자 1예

박기창,김신태,박진한,안정숙,신정호 연세대학교 원주의과대학 1992 원주의대논문집 Vol.5 No.1

교육혁신과 교육매체 활용

朴基昌 陸軍士官學校 1982 한국군사학논집 Vol.23 No.-

Changes in society usually bring changes to its institutions, including education. One of the greatest challenges to teaching arises from the current rapid expansion of knowledge. The theacher's chief job has been changed as diagnosticians and organizers, or managers of functionally varied learning experience. So a problem of promary importance for teachers is to keep to data on new knowledge, and the professional teacher must know and use dependable sources of information about available materials and develop skills in applying criteria to assess their accuracy and validity. I suggest the ways in which teachers may develop essential skills and knowledge to meet these many changing requirements. I introduced utilization unique advantage of the medium-VTR, computer and teaching machine, projected media, and multi-Image, multi-media package.

Doxepin이 가토 혈중 주정농도에 미치는 영향에 관한 실험적 연구

박기창 大韓神經精神醫學會 1982 신경정신의학 Vol.21 No.3

Doxepin is a tricyclic antidepressant and is a derivative of dibenzoxepine, which is known to be effective in depressed patients, showing anxiety and sleep disturbance. The author conducted an animal experiment to investigate the effects of this antidepressant on blood alcohol level, because many investigators have suggested that any new psychotropic drup should be tested for their interaction with alcohol. The expermient was done on mature rabbits of both sexes. The control group was given alcohol alone, and the experimental groups were given not only alcohol but also various oral doses of doxepin, namely, 10mg/kg for 5 days, 10mg/kg for 10 days, 25mg/kg for 5 days, and 25mg/kg for 10 days, respectively. The last dose was given one and a half hour before alcohol administration. In all groups, 5.0ml/kg of 20% ethanol solution was given intravenously and at 15 and 45 minutes after alcohol injection, blood specimens were obtained by cardiac puncture. The blood alcohol levels were determined by Cavett's method. Doxepin, when administered orally in a dose of 10mg/kg of body weight daily for 5 or 10 days, did not change the blood alcohol level significantly at both 15 and 45 minutes after alcohol administration, but when administered orally in a dose of 25mg/kg of body weight daily for 5 or 10 days, elevated the blood alcohol level significantly at both 15 and 45 minutes after alcohol administration. It is concluded that doxepin elevates the blood alcohol level in rabbits at a high dose.

교통사고 후유증의 약물치료

朴基昌 대한의사협회 1996 대한의사협회지 Vol.39 No.10

설비 결함 식별 최적화를 위한 오토인코더 기반N 분할 주파수 영역 이상 탐지

박기창,이용관 한국정보처리학회 2024 정보처리학회논문지. 소프트웨어 및 데이터 공학 Vol.13 No.3

제조 분야 설비 예지보전을 위해서 진동, 전류, 온도 등 물리 데이터를 기반으로 설비 이상을 탐지하는 인공지능 학습 모델이 활용되고 있다. 설비 결함, 고장 등 설비 이상 유형은 매우 다양하므로, 주로 오토인코더 기반 비지도 학습 모델을 이용한 이상 탐지 방법이 적용되고 있다. 설비상태의 정상, 비정상 여부는 오토인코더의 재구성 오차를 이용해 효과적으로 분류할 수 있지만, 설비 이상의 구체적인 상태를 식별하는 데 한계가있다. 설비 불균형, 정렬 불량, 고정 불량 등 설비 이상 상황 발생 시, 설비 진동 주파수는 특정 영역에서 정상 상태와 다른 패턴을 나타낸다. 본 논문에서는 전체 진동 주파수 범위를 N개 영역으로 나누어 이상 탐지를 수행하는 N 분할 이상 탐지 방법을 제시하였다. 압축기의 진동 데이터를이용해 주파수와 강도를 달리한 9종의 이상 데이터를 대상으로 실험한 결과, N 분할을 적용하였을 때 더 높은 이상 탐지 성능을 나타냈다. 제안방법은 설비 이상 탐지 이후, 설비 이상 구체화에 활용될 수 있다 Artificial intelligence models are being used to detect facility anomalies using physics data such as vibration, current, and temperaturefor predictive maintenance in the manufacturing industry. Since the types of facility anomalies, such as facility defects and failures, anomalydetection methods using autoencoder-based unsupervised learning models have been mainly applied. Normal or abnormal facilityconditions can be effectively classified using the reconstruction error of the autoencoder, but there is a limit to identifying facility anomaliesspecifically. When facility anomalies such as unbalance, misalignment, and looseness occur, the facility vibration frequency shows a patterndifferent from the normal state in a specific frequency range. This paper presents an N-segmentation anomaly detection method thatperforms anomaly detection by dividing the entire vibration frequency range into N regions. Experiments on nine kinds of anomaly datawith different frequencies and amplitudes using vibration data from a compressor showed better performance when N-segmentation wasapplied. The proposed method helps materialize them after detecting facility anomalies.

외상후 스트레스 장애의 정신생물학적 접근

박기창,Park, Ki-Chang 한국정신신체의학회 1996 정신신체의학 Vol.4 No.1

As the society becomes more industrialized and modernized, we have more chances to experience a serious traumatic event. Post-traumatic stress disorder (PTSD) has 3 major categories of symptoms such as memory disturbance, hyperarousal and avoidance or numbness. I reviewed the psychobiological evidences in 3 main categories of symptoms and the biological treatment after a brief review of the epidemiology, psychosocial etiology and diagnosis of PTSD. The memory disturbance of PTSD might be developed by the potentiation of the memory pathway mediated by norepinephrine. PTSD induces HPA axis abnormality, it might also develop hippocampal dysfunction, which might contribute to the memory disturbance. The kindling effect develops desensitization, which might develop reexperiencing of the traumatic events and hyperarousal state. Chronic aroused state of locus ceruleus with resultant chronic maladaptive state of norepinephrine system, might develop hyperarousal state. Social avoidance and physical numbing state in PTSD might be caused by serotnin or opiate system. Stress induced analgesia might be developed by opiate reliesed against the acute stress. The biologic research results would help the selective treatment of PTSD.

외상성 뇌손상이후 발생하는 외상후 스트레스장애와 급성스트레스 장애의 평가 및 치료

박기창,Park, Ki-Chang 대한생물정신의학회 1995 생물정신의학 Vol.2 No.2

Traumatic brain injury(TBI) used to be developed after a severe traumatic event. Therefore TBI usually induces acute or chronic stress reaction. I reviewed the concept, epidemiology, biological or psychosocial etiology, diagnosis and treatment of post-traumatic stress disorder (PTSD), and discussed about PTSD or stress reaction after TBI. Early evaluation and management of stress reaction after TBI are important.

두부외상후 심리사회적 예후

박기창,김헌주,Park, Ki-Chang,Kim, Hun-Joo 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.2

Objective : This study was designed to evaluate the relationship between the initial neurosurgical or psychosocial factors and the psychosocial outcome. Patients and Methods : We analyzed 123 head-injured patients who were referred to the department of psychiatry for the evaluation of psychosocial function. We analyzed initial neurosurgical variables such as Glasgow Coma scale(GCS) score, skull fracture, CT finding, and psychosocial outcomes with regards to psychosis, personality change, depression, anxiety and IQ on Intelligence Scale. Results : Patients with mild head injury(GCS score 13-15, N=94, 76.4%) had better recovery rate on Glasgow Outcome Scale(GOS), less personality change than those with moderate or severe head injury. However, depression, anxiety and intelligence were not significantly different between two groups. The skull fracture(N=37, 30.1%) did not influence on the psychosocial outcome with reference to personality change, depression, anxiety and intelligence. The patients with abnormal CT findings(N=64, 52%) had lower recovery rate on GOS, more frequent tendency in psychosis, personality change and severe depression, less frequent in anxiety and mild depression, than patients with normal CT finding. However, levels of intelligence were not different between two groups. The patients with industrial accidents(IA) had lower educational level, milder head injury, more delay for the psychiatric evaluation (longer treatment period) than those with motor vehicular accidents(MVA). The psychosocial outcome with reference to personality change, depression, anxiety, intelligence were not different between two groups. Conclusion : These findings indicate that the more severe initial trauma, the poorer psychosocial outcome. However, it was frequently observed that patients with mild head injury suffered from mild anxiety and depression. Therefore mild head injury appeared to be more complicated by psychosocial stressors. The patients with IA, despite the fact that initial head injury was mild, required longer treatment period than MVA.