자동화 컨테이너 터미널에서 AGV 교착 방지와 회귀 분석을 이용한 경로 선정 방안

전진표(Jin-Pyo Jun),류광렬(Kwang-Ryel Ryu),윤항묵(Hang-Mook Yoon) 한국항해항만학회 2005 한국항해항만학회지 Vol.29 No.8

본 논문은 AGV 주행 영역을 그리드 단위로 나누어 관리하는 자동화 컨테이너 터미널에서 AGV들 간의 교착을 방지할 수 있는 방안과 목적지까지의 예상 소요 시간이 짧은 경로를 효율적으로 선정할 수 있는 방안을 함께 제안한다. AGV들 간의 교착을 방지하기 위하여 그리드를 노도로 하여 AGV 주행 중 점유 순서의 선후를 연결한 그래프에서 교착 발생 가능성이 있는 강결합 요소를 파악한다. 운행 사에는 강결합 요소에 해당되는 그리드들에 AGV들이 진입하는 것을 통제함으로써 교착 발생을 방지한다. 이와 함께 AGV들 간의 간섭에 의한 지연까지 고려하여 목적지에 보다 일찍 도착할 수 있는 경로를 실시간에 선정할 수 있도록 주행 소요 시간을 추정할 수 있는 회귀 분석 함수를 생성하고 활용하는 방안을 함께 소개한다. 제안한 방안을 시뮬레이션 한 실험 결과 48시간동안 교착 발생 없이 AGV들을 운행할 수 있었으며, 회귀분석 함수를 이용하여 선정한 경로 이용 시 QC별 AGV 방문 횟수를 2~10회 향상시킬 수 있었다. This paper presents a deadlock avoidance method for AGVs in automated container terminals. For a more efficient use of AGV traveling area, we divided the area into small-sized grids not enough to cover a whole AGV. Our deadlock avoidance method controls AGVs by identifying strongly connected components(SCCs) in a graph derived from the paths of AGVs on the grids. Also in this paper we suggest a route selection scheme which selects a route by predicting and comparing travel times of candidate routes by using a regression formula. Simulation experiments have shown that the proposed method can control AGVs for 48 hours without deadlocks and the count of AGV visits per QC is increased by 2~10 an hour.

북한어판 CES-D(Center for Epidemiologic Studies Depression Scale-North Korea ; CES-D-NK)의 신뢰도와 타당도

박승진,이소희,전진용,이태엽,한정미,안명희,홍진표,Park, Sung-Jin,Lee, So Hee,Jun, Jin Yong,Lee, Taeyeop,Han, Jeong Mee,Ahn, Myung Hee,Hong, Jin Pyo 대한불안의학회 2015 대한불안의학회지 Vol.11 No.1

Objective : To translate Center for Epidemiologic Studies Depression Scale (CES-D) into North Korean language and to examine its reliability and validity Methods : North Korean defectors (n=207) recruited from the call center for North Korean defectors participated. Psychiatrists and psychiatric residents interviewed the participants and made the psychiatric diagnoses. Subsequently, the participants completed the CES-D, Impact of Event-Scale-Revised-North Korea (IES-R-NK), Alcohol Use Disorders Identification Test-North Korea (AUDIT-NK), and Brief Psychological State Inventory for North Korean Refugees (BPSI-NKR) questionnaires. Of the original participants, 143 subjects participated in test-retest reliability study after one week. Results : Cronbach's alpha coefficient of CES-D-NK was superior in both males (0.91) and females (0.93). The test-retest correlation coefficient was high (males, 0.64 ; femals, 0.79). Good convergent validity was evident by significant correlations with IER-R-NK, BPSI-NKR-Depression and BPSI-NKR-PTSD, respectively. CES-D-NK had no or weak correlations with AUDIT-NK and BPSI-NKR-Alcohol, showing its discriminant validity. Conclusion : CES-D-NK could be a reliable and valid tool for screening and assessing depressive symptoms of North Korean defectors.

북한이탈주민의 정신건강서비스 이용 실태

김다은,안지현,이경은,문승연,전진용,장혜인,홍진표,Kim, Da Eun,An, Ji Hyun,Lee, Kyoung Eun,Moon, Carolyn Seungyoun,Jun, Jin Yong,Chang, Hye In,Hong, Jin Pyo 대한불안의학회 2018 대한불안의학회지 Vol.14 No.1

Objective : The purpose of this study was to assess the use of mental health services by North Korean defectors. The study sought to understand the determinants of use with socio-demographical characteristics and the barriers of using mental health service. Methods : Data were collected from a sample of the 300 North Korean defectors who have settled in South Korea within the last three years, aged 18 years and older. Face-to-face interviews and a survey using the North Korean version of the Composite International Diagnostic Interview were conducted. Results : 21.0% of respondents reported the use of mental health services. Among them, 16.0% reported the use of mental health specialty, 2.0% reported the use of general medical services, and 3.0% reported the use of others. Of the respondents who had one or more psychiatric disorders, 28.8% used mental health services. The highest rate of use of mental health services was by respondents who are aged over 50 years old, had less than 10 years of education, and were unemployed. Of those who suffered from a psychiatric disorder but did not seek for consultation, 74.4% said that they could handle the problem by themselves, and 74.6% asserted that they had no psychiatric disorder. Conclusion : North Korean defectors in South Korea used mental health services more than the general South Korean population. It would be crucial to provide appropriate mental health services based on the needs of North Korean.

해외 정신건강 관리체계 통합시스템 사례분석

민다경(Dakyung Min),김현진(Jeniffer Hyunjin Kim),전진용(Jin Yong Jun),박수빈(Subin Park),남윤영(Yoon-Young Nam),홍진표(Jin-Pyo Hong),전주리(Juri Jeon),이중정(Joong-Jung Lee),임희영(Hee Young Lim),이다영(Young Lee),최성구(SungKu Choi) 대한사회정신의학회 2015 사회정신의학 Vol.20 No.1

목 적 : 정신보건 관리체계 통합시스템은 정신보건기관 간의 정보 공유를 통해 다학제적인 접근과 함께 환자들에게 양질의 서비스를 제공할 수 있다. 하지만 아직은 국내에서 통합 시스템에 대한 논의가 폭넓게 이루어지지 못하고 있는 실정이다. 따라서 해외 사례를 통해 국내 통합시스템에 대한 논의에 도움을 주고자 이 연구를 수행하였다. 방 법 : 저자들은 해외 통합시스템에 대한 문헌 고찰을 실시하여 이들의 도입 배경 및 목적, 수집 데이터, 효과성에 대해 알아보았다. 결 과 : 영국, 스웨덴, 뉴질랜드, 말레이시아 정신보건 관리체계 통합시스템을 분석을 통해 각각의 도입 배경 및 목적, 수집 데이터, 효과성 등의 공통점 및 차이점을 알 수 있었다. 결 론 : 따라서 이러한 해외 사례의 검토를 통해 국내 정신건강 관리체계 통합시스템 도입에 도움을 줄 수 있을 것으로 생각된다. Recnetly, the needs of Mental Health service has been increased. The mental Health Information System is important for improving mental health services and providing the information between mental hospitals and the community mental health organizations. Through reviewing the mental health information systems in New Zealand, England, Sweden, and Malaysia, we found some implications of Korean mental health information systems.

북한어판 알코올사용장애 진단검사(Alcohol Use Disorder Identification Test-North Korean version, AUDIT-NK)의 신뢰도와 타당도

김해수(Haesoo Kim),이소희(Soo Hee Lee),전진용(Jin Yong Jun),이태엽(Taeyeop Lee),한정미(Jeong Mee Han),안명희(Myung Hee Ahn,),최지희(Ji Hee Choi),홍진표(Jin Pyo Hong) 한국중독정신의학회 2016 중독정신의학 Vol.20 No.2

Objectives : The aim of the study was to develop North Korean version of Alcohol Use Identification Test and assess its reliability and validity. Methods : North Korean defectors (n=206) were recruited from North Korean counseling call center. Psychiatrists and psychiatric residents interviewed the participants. Psychiatric diagnosis were given to those who met criteria for Diagnostic and Statistical Manual of Mental Disorders-IV. Participants then completed the Alcohol Use Disorder Identification Test-North Korean version (AUDIT-NK), Center for Epidemio-logic Studies Depression Scale-North Korea (CES-D-NK), Impact of Event Scale-Revised-North Korea (IES-R-NK), and alco-hol section of Brief Psychological State Inventory for North Korean Refugees (BPSI-NKR-alcohol). After one week, the same questionnaires were administered to 131 participants to assess test-retest reliability. Results : Cronbach’s alpha value indicating internal reliability was 0.88 for AUDIT-NK. The test-retest cor-relation coefficient was 0.91. Pearson correlation coefficient be-tween AUDIT-NK and BPSI-alcohol was 0.80 for males and 0.71 for females, indicating high convergent validity. Good dis-crimination and validity of AUDIT-NK were evident based on its low correlation with CES-D-NK (males, 0.16 ; females, 0.00) or IES-R-NK (males, 0.16 ; females, 0.03). Conclusion : AUDIT-NK is a valid and reliable measure to assess symptoms of alcohol use disorder in North Korean refugees.

1D/2D 학습 데이터를 활용한 강화학습 기반 무인기 임무계획

문보훈(Bo Hoon Moon),이현준(Hyeon Jun Lee),김다솜(Dasom Kim),전진표(Jin Pyo Jeon),Aye Aye Maw,이재우(Jae-Woo Lee) 한국항공우주학회 2022 한국항공우주학회 학술발표회 논문집 Vol.2022 No.11

북한이탈주민에서 우울 증상과 회복탄력성의 관련성

안지현(Ji Hyun An),이경은(Kyoung Eun Lee),이효철(Hyo Chul Lee),전진용(Jin Yong Jun),김해수(Hae Soo Kim),홍진표(Jin Pyo Hong) 대한사회정신의학회 2017 사회정신의학 Vol.22 No.2

연구목적 : 본 연구에서는 북한이탈주민들을 대상으로 사회 인구학적 변수의 특징에 따른 우울 증상 및 회복탄력성과 관계, 우울 증상과 회복탄력성 사이의 상관 관계를 알아보고자 하였다. 방 법 : 본 연구에서는 전국 하나센터에 등록한 북한이탈주민 300명을 대상으로 자가 설문을 작성하도록 하였다. 북한어판 CES-D, CDRISC와 BRS를 통한 사회인구학적 변수 및 회복탄력성을 측정하여 각 변인들을 측정하였으며, 사회인구학적 특성들과 우울증상 또는 회복탄력성 점수와의 관련성을 알아보기 위해 t-test와 Pearson 상관분석을 시행하였다. 결 과 : 연구에 참여한 북한이탈주민들 중 여성(p=0.002), 저소득(p=0.007), 무직(p=0.017), 지난 일년간 건강문제가 있었던 경우(p<0.001) 우울 증상의 점수가 유의하게 높았다. 또한 CD-RISC로 측정한 회복탄력성 점수는 여성(p=0.049), 입국 후 기간이 1년 이상(p= 0.042), 그리고 미혼인 경우(p=0.021) 유의하게 낮은 것으로 나타났다. 우울증상은 회복탄력성 점수 각각 (CD-RISC;r=-0.257, p< 0.001, BRS;r=-0.409, p<0.001)과 모두 통계적으로 의미 있는 부적 상관관계를 보였다. 결 론 : 본 연구에서는 북한이탈주민에서 우울 증상의 심각도와 회복탄력성 사이에 부적인 상관관계가 있다는 것을 확인하였다. 이를 근거로 향후 북한 이탈주민들의 우울증상을 감소시키기 위해서 회복탄력성을 증진시키는 개입이 필요할 것으로 생각된다. Objectives : The aim of this study was to examine the characteristics of socio-demographic variables and the correlation with depressive symptoms and resilience in North Korean defectors. Methods : The study subjects were 300 North Korean defectors registered in regional adaptation center (Hana Center) in South Korea. Participants reported self- questionnaires including socio-demographic variables, which consider the sociocultural background of North Korea and the following self-rating scales : North Korean version of Center for Epidemiological Studies-Depression Scale;CES-D-NK, Connor-Davidson Resilience Scale; CD-RISC, and brief resilience scale. Results : Female (p=0.002), low income state (p=0.007), no occupational state (p=0.017), and presence of health problems over the past year (p<0.001) showed significantly high depression score in North Korean defectors. Only female gender (p=0.049), longer period after entry (p=0.042) and unmarried status (p=0.021) showed lower resilience score of CD-RISC. When correlation analysis were performed, depressive symptoms showed significant negative correlation with resilience score both in CD-RISC (r=-0.257, p<0.001) and Brief resilience scale (r=-0.409, p<0.001). Conclusion : Severity of depressive symptoms and low resilience are highly correlated in North Korean defectors. Future interventions should focus on improving resilience to decrease depressive symptoms in defector groups.