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20대 한국 직장인의 음주 심각도에 대한 직무 스트레스와 BDNF 유전자 다형성의 역할
김보아,이상익,김시경,신철진,손정우,홍주봉,남영우,주가원,Kim, Bo-Ah,Lee, Sang-Ick,Kim, Sie-Kyeong,Shin, Chul-Jin,Son, Jung-Woo,Hong, Joo-Bong,Nam, Yeong-Woo,Ju, Ga-Won 대한생물정신의학회 2012 생물정신의학 Vol.19 No.2
Objectives : The aim of this study was to examine the effects of brain-derived neurotrophic factor (BDNF) genetic polymorphism and job stress on the severity of alcohol drinking. It was hypothesized that individuals with the Met/Met BDNF genotype would be more vulnerable than those carrying the Val allele. Methods : Participants were 133 healthy Korean adults (mean age $28.2{\pm}1.1$). Job stress and the severity index of drinking were investigated through self-reported questionnaires. BDNF (rs6265) gene was genotyped. Results : There was no significant association between job stress and the severity of alcohol drinking. Although the severity of alcohol drinking was not associated with BDNF genetic polymorphism, there was a significant difference in men according to genotype and job stress. Men with homozygous BDNF Met allele were more severe in alcohol drinking when job stress was high, less severe in alcohol drinking when job stress was low than those carrying the Val allele (F = 4.47, p = 0.038). Also higher level of job stress was correlated with higher severity of alcohol drinking in men homozygous for BDNF Met allele (rs = 0.620, p = 0.005). Conclusions : These findings suggest the possibility that Met allele could have differential susceptibility, with men homozygous for BDNF Met allele being more susceptible to both more adverse and less adverse environmental influences.
최초발견자관점에서의 자동심장충격기(AED) 시스템 디자인 모형 제안 - 병원 전 단계에서의 응급처치 과정을 중심으로 -
김보아 ( Kim Bo Ah ),임혜원 ( Lim Hye Won ),정도성 ( Chung Do Sung ) 한국기초조형학회 2018 기초조형학연구 Vol.19 No.6
인구의 고령화와 심혈관계 질환의 증가로 병원 밖 급성심정지 환가가 점차 늘어나고 있고 있다. 하루 평균 약 80명의 심정지 환자가 발생하고 있으며, 10년 전에 비해 50%가 증가한 것으로 나타났다. 급성심정지는 스스로 구조요청을 할 수 없는 질환으로 목격자 즉 최초발견자 여부에 따라 생사가 결정된다. 이와 더불어 심정지 상태가 5분 이상 지속되면 사망 가능성이 급속도로 높아지게 되고 심폐소생술과 제세동을 시행한 경우 환자의 회복율이 3배 이상 증가하게 된다. 따라서 신속한 응급처치와 의사결정이 매우 중요하다. 이에 발맞춰 정부는 심정지 응급처지 교육 이수를 권장하고 2010년부터 자동심장충격기 보급률을 높이고자 의무 설치화 법률을 시행하였다. 그러나 보건복지부에 조사 결과 심정지 환자의 사망률은 90.1%로 나타났으며, 일반인의 응급처치 시행률은 13.1%로 아직까지 매우 낮은 것으로 나타났다. 본 연구는 최초발견자의 응급처치 과정 중 심폐소생술 시행과 자동심장충격기의 접근성을 개선을 목적으로 진행되었으며, 최종적으로 자동심장격기 개선방향과 시스템디자인의 모형을 제안하고자 한다. 문헌조사와 선행연구를 통해 국내 응급의료체계, 기본 응급처치, 자동심장충격기의 개념을 살펴보고 이해관계자의 분석을 통해 최초발견자의 역할과 협력체계를 파악하였다. 그 후 응급처치 과정 분석을 위해 관찰조사와 사후 설문을 진행하여 문제점을 도출하였다. 이를 토대로 사전 예방을 통한 인식 개선, 접근성 향상, 응급처치 안정성 제고, 시스템의 상호운용성 확보를 최초발견자의 응급처치 과정의 개선 방향으로 제시하며 자동심장충격기 시스템디자인 모형을 제안한다. 본 연구를 통해 최초발견자의 응급처치체계 기반을 마련하고 자동심장충격기 시스템디자인의 개선 연구의 기초자료로 활용되고자 한다. Population aging and cardiovascular diseases are on the rise. On average, about 80 patients are reported per day. Compared to 10 years ago, it has increased by 50 percent. Acute cardiac arrest is a disease that cannot be requested by itself, and life and death are controlled by first-time finders' behavior. In addition, if the cardiac arrest continues for more than five minutes, the possibility of death rapidly increases, and the patient's recovery rate will more than triple if he or she performs CPR and defibrillation. Therefore, rapid first aid and decision making are very important. The government recently enacted the Mandatory Installation Act to encourage the transfer of education for cardiac arrests and to increase the supply rate of automatic cardiac arrestors from 2010. However, a survey by the Ministry of Health and Welfare showed that the death rate of suspended patients still stands at 90.1 percent, and that of ordinary people is 13.1 percent, which is still very low. This study was conducted with the aim of improving the accessibility of the cardiopulmonary resuscitation and the automatic cardiac arrestor during the first responder's first emergency treatment process. It has been suggested that the automatic cardiac arrestor be improved and a model of the system design. Through literature research and prior research, understood the concept of the Korean emergency medical system, basic emergency treatment, and automatic cardiac arrestor. Then, the problem was found by conducting a observational survey and after-survey for analysis of the first aid process. The first aid treatment process for first-time care workers was presented in four directions for improvement. 'Improvement of awareness through prevention', 'increase accessibility', 'increase of emergency handling stability' and 'to ensure interoperability of the 'system' And proposed a model for the system design of the automatic cardiac arrestor for the first time ever found it.
국내 의류상품개발과정에서 직종별 업무관여도 비교 - 테크니컬 디자인 업무 중심으로 -
김보아 ( Bo Ah Kim ),남윤자 ( Yun Ja Nam ),이재일 ( Jaeil Lee ),윤미경 ( Mi Kyung Yoon ) 한국의류산업학회 2016 한국의류산업학회지 Vol.18 No.5
The purpose of this study is 1) to research how practitioners in fashion industry in South Korea perceive concepts of Technical Design/Designer, 2) to compare and analyze issues at work by occupation, 3) to research specific works in garment development process, and 4) to compare and analyze work involvement by occupation, type of a company and etc, and 5) to propose the role of Technical Designers in apparel companies in South Korea. There were two methods to conduct this study, which were in-depth interview and survey. Both methods were conducted to designers, merchandisers, pattern makers, technical designers, and production coordinators. Frequency analysis, ANOVA, Duncan test, and Factor analysis were performed to get results by using SPSS 18.0 program. The results are following. There were 50 works during garment development process from the result of in-depth interview, and 6 factors were obtained from the result of Factor analysis, which were ‘Works about Sample in Sample Development Process’, ‘Works about Product’s Pattern and Size Spec’, ‘Works about Development of Garment’s Design’, ‘Works about Planning of Product Development and Management of Product in Stock’, ‘Works about Production Process’, and ‘Preparation Works for Sample Development’. In conclusion, technical designer in apparel companies in South Korea should be in charge of works about sample in sample development process and decision making of product’ size spec, which is included in works about product’s pattern and size spec. Also, they should complete technical package after product is developed by designers.
Fast model predictive control for autonomous vehicle
Bo-Ah Kim(김보아),Young Ok Lee(이영옥),Seung-Hi Lee(이승희),Youngseop Son(손영섭),Chung Choo Chung(정정주) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
In this paper, we present how model predictive control (MPC) is applied to lane change system based on the vision module. The proposed MPC reduces computing time in finding constrained optimal solutions. For the case of fast systems, real-time solution is very difficult to get in the sample time for the system having complexity MPC formulation or many constraints. Weighted forgetting factors are introduced to find effective active constraints. The proposed fast MPC is quickly computable for not only complex MPC formulation but also in the case of no solution. Performance of the proposed control method is validated via simulations implemented in MATLAB/ Simulink and CarSim in real-time environment.
김보아(Bo-Ah Kim),손영섭(Youngseop Son),강대헌(Dae-Hun Kang),이승희(Seung-Hi Lee),정정주(Chung Choo Chung) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
Autonomous driving vehicle control system uses a vision sensor to get road information. Such vision sensor may provide poor detection performance due to different line intensities, and characters or imperfect lane marks on the road. In this paper, we propose a new lane estimator which uses a vehicle kinematics model. The estimator can provide predictive virtual lane even when vision system cannot provides reliable lane information due to poorly detected road images. The performance of the proposed control method is validated via simulations implemented with CarSim and Matlab/Simulink.
비젼 기반 자율주행을 위한 다중비율 예측기 설계와 모델예측 기반 능동조향 제어
김보아(Bo-Ah Kim),이영옥(Young Ok Lee),이승희(Seung-Hi Lee),정정주(Chung Choo Chung) 대한전기학회 2012 전기학회논문지 Vol.61 No.5
In this paper, we present model predictive control (MPC) applied to lane keeping system (LKS) based on a vision module. Due to a slow sampling rate of the vision system, the conventional LKS using single rate control may result in uncomfortable steering control rate in a high vehicle speed. By applying MPC using multi-rate Kalman filter to active steering control, the proposed MPC-based active steering control system prevents undesirable saturated steering control command. The effectiveness of the MPC is validated by simulations for the LKS equipped with a camera module having a slow sampling rate on the curved lane with the minimum radius of 250[m] at a vehicle speed of 30[m/s].
자율 주행 차량의 횡방향 안정성을 위한 외란 관측기 실험적 검증
강대헌(Dae-Hun Kang),김보아(Bo-Ah Kim),이영옥(Young Ok Lee),이승희(Seung-Hi Lee),손영섭(Youngseop Son),정정주(Chung Choo Chung) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
An uncertain lateral disturbance causes dangerous yaw motions of vehicles and unexpected steering angle perturbation. The lateral disturbance is compensated by additional steering torque input from a state space disturbance observer. The state space disturbance observer requires no accurate modeling of lateral disturbance. Usefulness of robust vehicular steering control system is validated through experiments.