갑상선기능과 정신장애

이창인 서울대학교 의과대학 정신과학교실 1986 서울醫大 精神醫學 Vol.11 No.2

미 육군의 전투원 치명성(Soldier Lethality) 강화 계획

이창인 한국방위산업진흥회 2020 國防과 技術 Vol.- No.495

기계번역의 역사와 현안 문제점

이창인 한국현대언어학회 1995 언어연구 Vol.11 No.1

This paper surveys the history of machine translation(MT) from the 50's to the present, and describes the stages (Analysis, Transfer and Generation) and strategies of MT(Transfer and Interlingua Method). The paper also examines the present systems employing semantic approaches and directs the DCS(Dynamic Comprehension System) toward Hierarchical Generalization and Cross- classification for the representation of nouns.

단일 고선량 방사선 조사 후 발생한 백서의 척수세포 자멸사에 대한 Nimodipine 의 효과

이창인,정용구,김한겸,김철용,조태형 대한신경외과학회 2003 Journal of Korean neurosurgical society Vol.34 No.5

Objective:Radiation injury includes radiation necrosis and apoptosis. Though some of its mechanism in brain are reported, those in spinal cord are not determined yet. The purpose of this study is to see whether nimodipine, one of calcium channel blockers, is effective for the prevention of high dose irradiation-induced apoptosis in the rat spinal cord. Methods : Forty eight Sprague-Dawley rats were divided into four experimental groups, such as non-treated group(control group) after 5Gy and 10Gy irradiation(n=24), and nimodipine-treated group after 5Gy and 10Gy irradiation(n=24). Each group was divided by irradiation doses. After the drug was administered, the spinal cord was exposed to 5Gy and 10Gy dose of gamma rays using Ir-192. All spinal cord underwent histological examination at 4 hours, 8 hours, 12 hours after irradiation to evaluate the number of apoptotic cells. Apoptotic cells were detected by TUNEL assay, and determined by direct visual counting at×200, magnification Results : In nimodipine-treated group, apoptotic cell counts were reduced significantly, compared to that of control group after irradiation(p<0.05). Conclusion : These results suggest that nimodipine treatment may have effects on the prevention of radiationinduced apoptosis. If it could be established that calcium channel blockers inhibit radiation injury, they might be useful in radiation therapy. Key words:Radiation;Apoptosis;Nimodipine;Spinal cord;Rat.

소부대 유・무인 복합전투체계의 전술과 요구장비

이창인,정민섭 한국방위산업학회 2023 韓國防衛産業學會誌 Vol.30 No.2

본 연구는 병력감소로 약화되고 있는 육군이 수적 우위에 있는 적을 상대하기 위해 추진하고 있는 유・무인 복합전투체계의 전술과 필요장비를 연구한 것이다. 그리고 단편적으로 연구된 여러 자료와 전투원리를 엮어 소대급 이하의 유・무인 복합전투체계 전술과 필요장비를 제시하였다. 기존연구는 유・무인 복합전투체계의 교전모델이나 효과성, 전투기 소탕에 대한 유무인 체계 전술 등으로, 지상군의 유・무인 복합전투체계 전술과 이를 구현하기 위해 필요한 장비를 제시하기에는 한계가 있었다. 유・무인 복합전투체계의 전술은 선견-선결-선타-방호-지속지원의 원리를 적용한 비접촉 원거리전투를 제시하였고, 이를구현하기 위한 필요장비는 전투수행 6대 기능으로 구체화하였다. 이 연구를 통해 향후 유・무인 복합전투체계의 전술과 이를구현하기 위해 필요한 장비개발에 도움이 될 수 있을 것이다. This study examines the tactics and equipment requirements for a combined manned and unmanned warfare system that the R.O.K. Army is pursuing to deal with a numerically superior enemy. And This study presents the tactics and equipment requirements for a combined manned and unmanned warfare system at the platoon level and below by combining various piecemeal studies and combat principles. Existing research has been limited to the engagement model, effectiveness, and tactics of manned and unmanned systems to eliminate fighters, but it is not possible to present the tactics of manned and unmanned systems for ground forces and the equipment required to implement them. The tactics of the manned and unmanned combined combat system are presented as non-contact ranged combat that applies the principles of see first, decide first, strike first, protection, and sustainment, and the equipment required to implement them are specified as six warfighting functions. This research will help develop tactics for future manned and unmanned combined combat systems and the equipment needed to implement them.

[행복 일기] 47시간 만의 구출

이창인 샘터사 2009 월간 샘터 Vol.470 No.-

癎疾患者의 臨床變因과 腦波所見의 相關關係에 對한 硏究

李昌仁,朴東健 조선의대 1985 The Medical Journal of Chosun University Vol.10 No.1

지상군의 국지제공권 확보 가능성 연구

이창인,정민섭,조상근,박상혁 국제문화기술진흥원 2022 The Journal of the Convergence on Culture Technolo Vol.8 No.4

Through the 2014 Donbas conflict and the 2022 Ukraine-Russia war, we are experiencing that the command of the air is no longer only secured by the Air Force. Long-range surveillance reconnaissance and strikes carried out by the Air Force could be replaced by drones and missiles, and the enemy’s aerial attacks could be controlled by air defense systems such as Panchir and portable anti-aircraft missiles, allowing ground forces to carry out maneuvers freely. In other words, it is much more advantageous for the air force and the navy to take control of the air through long-distance operations, and the ground forces should support them. Therefore, this study aims to consider the cost-effectiveness aspect of the delivery command of the air; it provides implications for quickly responding to enemy air attacks by developing the air defense weapon system, drones, missiles, precision-guided munitions, etc rather than focusing on expensive fighter jets. 2014년 돈바스 분쟁과 2022년 우크라이나-러시아 전쟁 사례를 통해 제공권은 더 이상 공군에 의해서만 확보할 수 있는 것이 아님을 경험하고 있다. 기존의 공군이 수행하던 원거리 감시정찰과 타격은 드론과 미사일로 대체할 수 있으며 적의 공중공격은 판치르와 휴대형 대공미사일 같은 방공무기체계로 국지제공권을 장악하여 지상군의 자유로운 기동 작전을 수행할 수 있다. 즉, 지금처럼 공군과 해군이 원거리 작전을 통해 제공권을 장악하는 것이 훨씬 유리하며 지상군은 이들을 지원해주는 작전개념이 더욱 적절하다. 따라서 본 연구는 이러한 제공권 작전 수행체계에 대해 값비싼 전투기에 집중하기보다 비용 대 효과성 측면을 고려하여 방공무기체계, 드론, 미사일, 정밀유도 포탄 등을 병행 발전시켜 적의 공중공격에 신속히 역공할 수 있도록 제공권 작전 수행체계에 대한 시사점을 제공하는 것이다.

컴퓨터 보조 언어학습(CALL)과 자연언어처리

이창인 한국현대영어영문학회 2002 현대영어영문학 Vol.46 No.1

This paper aims to explore the connection between CALL(Computer-Aided Language Learning) and ICALL(Intelligent Computer-Aided Language Learning). For the exploration of this study, some characteristics, history, pros & cons and types of CALL are summarized and the parsing process from morphological to semantic phase is explained with a simple English sentence in the first and second part of the paper, respectively. As we can see from parsing procedure, ICALL programs prerequisite the solution of knowledge representation problems and some parsing problems caused from ambiguity, reference, repetition, and parsing grammar, etc.

제주대학교 의과대학 학생들의 중증 스트레스 유병률과 관련요인

이창인,홍성철,김현주,김문두 한국의학교육학회 2007 Korean journal of medical education Vol.19 No.3

Purpose: To determine the prevalence of severe distress and its correlates among Cheju medical college students. Methods: Data were gathered in December 2005, and all medical college students were included. Of a total of 170 medical college students, 52(30.6%), 41(24.1%), 37(21.8%), and 40(23.5%) were 1st, 2nd, 3rd, and 4th year students, respectively. The questionnaire for sociodemographic information included age, sex, year, hometown, accommodation, education level of parents, socioeconomic status of parents, GPA(grade point average), and standing. Subjective sense of health status, level of health concern, smoking habit, drinking habit(CAGE), sleep pattern, degree of obesity, and body image satisfaction were included to reveal health habits and health behaviors of the subjects. CES-D for depression, Psychosocial Well-being Index(PWI) for stress level, State-Trait Anxiety Inventory(STAI) for level of anxiety, and SCL-90-R(Symptom Checklist 90 revised) for level of general psychopathology were used Results: 1st year students were 4.338 times(95% CI; 1.412-13.324) more likely than other years to experience severe distress. Students who felt that they had insufficient time for relaxation showed 5.027 times(95% CI; 1.489-16.969) higher prevalence of severe distress than those who felt they had sufficient time for relaxation. Those with poor self-esteem were 18.347 times(95% CI; 5.484-61.382) more likely to experience severe distress than those with ‘good’ self-esteem. Conclusion: Offering various programs for improving coping skills, advanced counseling program, or tutoring system and providing sufficient relaxation timeby various methods, such as modifying curriculum, are needed to ameliorate severe distress.