인간공학적 선교통합알람장치의 개발을 위한 기초 연구

양영훈,양찬수,공인영,이봉왕,Yang, Young-Hoon,Yang, Chan-Su,Gong, In-Young,Lee, Bong-Wang 해양환경안전학회 2005 해양환경안전학회지 Vol.11 No.1

선박의 항해 계기들의 기술이 발전됨에 따라 많은 장비들이 개발되고 있으나 여전히 인간과실에 의한 해양 사고는 지속적으로 발생하고 있는 현실에서, 인간과실에 의한 사고를 감소시키기 위하여 선교의 항해 계기들은 인간공학적적으로 배치, 설계되었는지가 많은 관심의 대상이 되고 있다 선교 내 여러 계기들의 알람장치는 선교 근무자에게 그 알람 장치가 주고자 하는 정보를 가능한 빨리 인식하고 정확한 정보를 전달할 수 있도록 설계되어야 하며, 국제적으로 인간공학적 선교를 위한 알람장치(Bridge Alarm Management System : BAMS)의 필요성이 논의 되고 있으나 아직 실질적인 설계방법 등에 대해서는 논의가 이루어지고 있지 않다. 따라서 본 논문에서는 선박의 여러 설비 중 선교의 알람장치에 관한 인간공학적 개념의 설계에 대하여 알아보고 현재 개발, 운용 중인 인간공학적 통합선교시스템(Integrated Bridge System :IBS)의 선교통합알람장치(Ergonomic Integrated Bridge Alarm Management System : EIBAMS)에 관한 개념적인 설계를 제안하고자 한다. According to the development if the ships navigational equipment, a bridge system has been improved but a marine accidents by human error haven't been reduced Recently our interest is concentrated on a suitable ergonomic arrangement and design of the ships bridge equipment to reduce an error due to human factors. The bridge alarm system should be designed to recognize the alarm informations as soon as possible and to deliver it clearly. Internationally, the matter is being discussed on the BAMS(Bridge Alarm Management System) in a view if a ergonomic bridge design, but a practical design method is not getting result.. In this paper I would like to review an application approach of human engineering ergonomics to a bridge alarm system and propose a conceptual design if the Ergonomic Integrated Bridge Alarm Management System(EIBAMS)

인간공학적 Bridge Conning Display 설계에 관한 연구

양영훈,이봉왕,유재문,이창민,Yang Young-Hoon,Lee Bong-Wang,Lew Jae-Moon,Lee Chang-Min 해양환경안전학회 2005 海洋環境安全學會誌 Vol.11 No.2

기술의 발전에 따라 다양한 항해 계기들이 개발되고 있으나, 인간 과실에 의한 해양사고는 지속적으로 발생하고 있다. 따라서 사고를 감소시키기 위해 항해 장비들을 인간공학적으로 배치하고 설계하는 것이 관심의 대상이 되고 있다. 이러한 흐름에 각 국의 선급 및 해운 관련 기구에서는 인간공학적 개념을 적용한 통합선교시스템(Integrated Bridge System : IBS)에 대한 규정을 마련하고 있으며, IBS는 인간 과실로 인한 해양사고를 감소시키기 위한 설계와 정보의 제공을 중심으로 발전 할 것으로 예상된다. IBS의 일환으로, 선박 운항 시 항행정보를 하나의 모니터에 보여주는 Conning Display는 선교 근무자가 필요한 정보를 얻기 위해 취하는 부수적인 행동, 시간 등을 단축시킨다. 그러나 Conning Display 설계에 있어 표준화된 규범이 없으므로 객관적 연구가 필요한 실정이다. 본 논문에서는 설문조사와 스케치 기법, 휴리스틱 평가 등의 방법들을 통해 Conning Display의 인간공학적 설계를 위한 요소를 추출하였다. 이를 바탕으로 새로운 Conning Display를 제작하여 기존 fouling Display와 비교, 평가 실험을 실시하였다. 본 논문의 결과를 통해 향후 더 나은 Conning Display를 설계, 개발하는데 있어 인간공학적 지표를 제시하고 하나의 표본으로 사용될 수 있을 것이라 사료된다. According to the development of technology of the navigational equipments, many bridge equipments have been improved, however, marine accidents by human error have not been reduced. Therefore, a matter of primary concern is focused on whether bridge equipments of ships are ergonomically arranged to reduce errors due to human factors. As part of a design of IBS(Integrated Bridge System) standard, rules of the conning display to save time and additional movements to obtain important informations of a ship should be established as soon as possible. In the present study, ergonomic design factors for the conning display are studied through the survey of related works, heuristic evaluations, sketch method tests as well as questionnaires. Using these factors, new conning display was designed and the ergonomic indices were evaluated by comparing tests of the existing conning displays. It is found that the designed conning display obtained high ergonomic index showed better performance, therefore, the ergonomic index studied in the present paper can be used as a useful design standard in the conning display design procedures.

노출된 다공성 안와 삽입물에서 공여 부위에 따른 자가 진피지방 이식술의 치료 결과

양영훈,안민,Young Hoon Yang,MD,Min Ahn,MD,PhD 대한안과학회 2013 대한안과학회지 Vol.54 No.4

Purpose: To compare the outcomes of autogenous dermis fat grafting with different donor sites in the treatment of exposed porous orbital implants. Methods: The present study retrospectively evaluated the medical records of 17 patients (17 anophthalmic eyes) who had undergone autogenous dermis fat grafting based on the diagnosis of exposed porous orbital implants and were regularly followed up for at least 12 months since the surgery from January 2001 to December 2010. The patients were divided into 2 groups (thigh and abdomen) according to the site of the donor grafting. The treatment outcome and complications were compared between the 2 groups. Results: The success rate of thigh dermis fat grafting was 88.9% (8/9) and 100.0% (8/8) in the abdominal dermis fat grafting, and there was no statistically significant difference between the 2 groups (p = 1.000). Regarding ocular complications, graft tissue infection (thigh 11.1%, abdomen 0%) and superior sulcus deformity (thigh 22.2%, abdomen 25.0%) were present. Regarding donor site complications, tenderness (thigh 55.6%, abdomen 25.0%), dehiscence (thigh 22.2%, abdomen 25.0%) and scar formation (thigh 33.3%, abdomen 25.0%) were observed. In the gait associated complications, pain (thigh 55.6%, abdomen 25.0%) and limping (thigh 22.2%, abdomen 12.5%) were observed. The rate of all complications showed no statistically significant difference between the thigh dermis fat grafting and the abdominal dermis fat grafting (all p > 0.05). Conclusions: Thigh and abdomen can both be considered as an effective donor site for the autogenous dermis fat grafting in the treatment of exposed porous orbital implants.

후신경구 수막종에 의한 양측 시각장애 1예

양영훈,안민,Young Hoon Yang,Min Ahn 대한안과학회 2012 대한안과학회지 Vol.53 No.6

Purpose: To describe a case of severe bilateral visual loss in a patient with olfactory groove meningioma. Case summary: A 64-year-old man presented with a 1-year history of anosmia, progressive loss of vision and visual field deficit. Presenting visual acuity was Counting fingers at 10 cm, and visual field exam showed total visual field defect in both eyes, but there was no remarkable finding to warrant an ophthalmologic examination except mild nucleosclerosis in both eyes and temporal pallor in the left optic nerve head. A brain MRI scan was performed and revealed an olfactory groove meningioma. Surgical resection was performed, and pathologic findings showed meningotheliomatous meningioma. Two months later, the patient was healthy, but no significant improvement of visual acuity or visual field was observed. Conclusions: In patients with unexplained visual loss with anosmia, olfactory groove meningioma should be considered. J Korean Ophthalmol Soc 2012;53(6):906-909

칸디다와 세균의 복합 각막염 5예

양영훈,유인천,Young Hoon Yang,In Cheon You 대한안과학회 2013 대한안과학회지 Vol.54 No.5

Purpose: To report the clinical manifestations and prognoses in 5 cases of mixed Candida and bacterial keratitis and present a literature review on mixed fungal and bacterial keratitis. Case summary: Five eyes of 5 patients (1 male, 4 female) diagnosed as mixed Candida and bacterial keratitis by corneal smear and culture were included in the present study. Patient mean age was 62.80 years. All patients had preexisting ocular or systemic conditions as predisposing factors for mixed Candida and bacterial keratitis. The most common Candida species isolated was Candida albicans (3 eyes, 60%), while Staphylococcus (3 eyes, 60%) was the most common mixed bacterial species. The average size of ulceration was 7.02 mm2. In 2 eyes (40%), the lesions were located at the corneal center. The depth of the infiltration was significant in all cases, and hypopyon was present in 2 eyes (40%). On the initial visit, the visual acuity was counting fingers or worse in all cases. Four eyes (80%) unresponsive to the topical and systemic treatment underwent surgical intervention but only 1 eye (20%), which had responded to the topical and systemic treatment, showed acuity improvement of more than 1 line on the final visit. Conclusions: In managing chronically compromised cornea, the possibility of mixed infections with Candida and bacterial organisms should be considered as keratitis shows poor prognosis.

해양사고 예방을 위한 국내 연안선 항해당직자의 업무 부하 분석

양영훈,김홍태,장준혁,Yang, Young Hoon,Kim, Hongtae,Jang, Junhyuk 대한인간공학회 2017 大韓人間工學會誌 Vol.36 No.5

Objective: The purpose of this study is to measure the workload of Korea coastal ship crew members, to investigate whether they are following work-break time regulations and to identify the main causes of their workload. Background: According to the US Coast Guard, about 33% of human casualties are reported to be due to fatigue, and 30% of marine casualties reported by the British Marine Accident Investigation Agency (MAIB) are attributed to crew fatigue. But the coastal ship are not managed for business hours and breaks despite the harsh environment. Method: The workload of duty crew members on the 100 domestic coastal vessels was measured. It was also investigated whether they are following domestic and international work-break time regulations. Finally, the marine accidents resulted from the fatigue of the crew was analyzed. Results: As a result of workload analysis, the workload on the 42~62% of the vessels exceeded the standard of working time on the related regulation. The workload increased with the number of inbound and outbound ports. Especially, in the system where there are two seafarers, the workload exceeded the working time requirement. As a result of the marine accidents analysis on 100 vessels, it was found that collision and grounding occurred due to fatigue, workload and drowsiness in 7 marine accidents out of 30 marine accidents. Conclusion: It is necessary for the shipping companies to introduce an operation management manual for the management of the crews' workload and reasonable crew arrangement. It is also required for crew members to easily record work times and for shipping companies to manage the record. It would be possible to prevent many marine accidents by providing adequate rest to the crews and flexibly adjusting their working hours. Application: The results of this study can be used as fundamental data to manage crews' fatigue and to make job management manuals.

선박운항중 항해자의 피로도 증가에 관한 연구

양영훈(Young-Hoon Yang),장준혁(Jun-Hyuk Jang),배용기(Yong-Gi Bae),김홍태(Hong-Tae Kim) 한국항해항만학회 2018 한국항해항만학회 학술대회논문집 Vol.2018 No.추계

선박운항중 항해자의 피로도 변화를 연구하기 위하여, 선박운항시뮬레이터를 이용한 항해자의 신체 변화를 분석하였다. 인천항에 입항하는 상황에서 도선사 및 선장 총 12명을 대상으로 플리커(Flicker) 장비를 이용한 시각 피로 변화, 자율신경검사 분석 장비를 이용한 스트레스 및 누적 피로도 변화를 측정하였다.

해양사고 예방을 위한 연안선의 Workload 분석 및 측정 방안

양영훈(Young Hoon Yang),김홍태(Hong Tae Kim),장준혁(Jun Hyuk Jang) 한국항해항만학회 2017 한국항해항만학회 학술대회논문집 Vol.2017 No.추계

미국 해안경비대 및 영국 해양사고조사국에 의하면 해양사고에서 인적과실의 원인중 상당부분 선원 피로에 기인하는 것으로 조사되었으며, 스웨덴에서의 연구 결과 약 73% 정도 선박 당직근무자들이 당직 근무 시간 중 최소 1회 또는 그 이상 졸음에 빠져 있는 것으로 보고하고 있다. 본 연구에서는 국내 연안선 항해당직자들을 대상으로 Workload를 분석하였으며, 효율적으로 Workload를 측정할 수 있는 방안을 제시하였다.

해양 탄소중립 실현을 위한 디지털 플랫폼 개발

양영훈(Young-Hoon Yang),박진형(Jin-Hyoung Park),조득재(Deuk-Jae Cho) 한국항해항만학회 2022 한국항해항만학회 학술대회논문집 Vol.2022 No.춘계

본관 5층 시청각실 로비 : 디지털 협력 과제 시스템 구현

양영훈 ( Young Hoon Yang ),김종훈 ( Jong Hoon Kim ),김은길 ( Eun Gil Kim ) 한국컴퓨터교육학회 2010 한국컴퓨터교육학회 학술발표대회논문집 Vol.14 No.2

기존의 협동학습 시스템에 대한 연구는 많았다. 하지만 대부분 게시판 위주의 토론 형식에서 벗어나지 못한 점에서 한계가 있으며, 급변하는 사회 현실을 반영하지 못했다. 그런 텍스트 위주의 협동학습 시스템에서 벗어나고 최근 이슈가 되고 있는 SNS(Social Network Service)로 인해 생겨난 사회관계 공간이 새로운 가치 창출에 이바지하고 있다는 점에 근거하여 교육시스템에 SNS를 접목하고자 한다. 따라서 본 연구에서는 SNS 및 협동학습을 기반으로 한 협력 과제 시스템을 구축하여 현장에 적용함으로써 교육적 효과와 향후 교육 시스템의 발전 방향을 모색해 보고자 한다.