• Korean Journal of Culture and Social Issue
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• v.9 no.spc
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• pp.107-122
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• 2003

The object of this study is to evaluate the prevailing physical and psychosocial conditions regarding occupational low back injury. This study consists of two parts. In the first part of the study, analytic biomechanical model and NIOSH guidelines are applied to evaluate risk levels of low back injury for automobile assembly jobs. Total of 246 workers are analysed. There are 20 jobs having greater back compressive forces than 300kg at L5/S1. Also, there are 44 jobs over Action Limit with respect to 1981 NIOSH guidelines. The relationship between psychosocial factors and low back injury was examined in the second part of the study. A battery of questionnaires concerning the psychosocial stress based on PWI (Psychosocial Well-being Index) and musculoskeletal pain symptoms at low back was completed by 246 workers at the same plant. Results showed that 207 out 246 workers experienced the symptoms and 27 workers were diagnosed as patients. Two groups(low stressed, high stressed) based on PWI score had no significant relationships with both symptoms and results of diagnosis. The relationships between physical work load and psychosocial stress were also analysed. Specifically, some postural factors(vertical deviation angle of forearm, horizontal deviation angle of upperarm, vertical deviation angle of thigh, etc) were highly correlated with psychosocial stress. The results illustrated that PWI scores were associated with some physical workloads. However, psychosocial stress levels couldn't be well related with the pain symptom as well as the actual incidence of low back injury since pain or discomfort regarding low back injury were more complex than that of other musculoskeletal disorders.

• Korean Institute of Interior Design Journal
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• v.19 no.2
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• pp.42-53
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• 2010

건축에 있어서 이론과 실제의 관계 문제는 오랫동안 건축 담론에 대한 주요 대상이 되어왔다. 이는 건축에서의 발전이 역사적으로 동시대의 사회적, 문화적, 경제적 환경의 진화와 더불어 진행되어 왔기 때문이며, 건축작업 선상에서 대두되는 이론과 실제의 관계와 맥락성이 건축의 주체성에 매우 중요한 요소로 여겨지기 때문이기도 하다. 1960년대부터 불거진 포스터모던주의의 사고적 영향은 건축분야의 의미와 가치에 있어서 학문과 실무분 야에서 새롭게 재조명되기 시작하였고, 기존 건축고유의 영역을 벗어나, 역사, 이론, 비평, 기술 및 디자인 분야로 확장되어 새롭고 다양한 접근 방법과 그 방식에 대한 고민을 추구하기 시작하였다. 건축작업에 중요한 근거를 제시해주는 비평적 사고를 유지하기 위하여, 이론적인 아이디어에서 실질적인 실무로서의 투사방법, 그리고 그 사이의 절충을 지속하기 위함은 특히 현대사회에서 더욱 복합적이며 다면적인 질문이 되고 있다. 이 논문은 건축의 투사 방법에 있어서 현대 건축가들이 자신들의 이론적인 관점과 그 관점을 건축적으로 가시화 시키는 관계성을 관찰하고, 어떻게 본인만의 논리와 프로세스를 추구하고 지속하는가에 대한 점을 연구하는데에 그 목적이 있다.

• Journal of KIISE:Computing Practices and Letters
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• v.7 no.4
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• pp.359-371
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• 2001

Project scheduling under resource constraint conditions have contained to many uncertain factors and it is perfonned by human experts. The expert identifies the activities of the project, decides the precedent relationships between these activities, and then construct the schedule using expected activity's duration. At this time, most of the scheduling methods concentrate on one of scheduling factor between activity duration and cost. And the activity duration, which is the most important factor in scheduling, is decided by heuristic of expert. Therefore it may cause uncertainty of activity duration decision and the use of this activity duration may increase the uncertainty of constructed schedule. This paper proposes Fuzzy-MOEH scheduling algorithm, which is the aggregation of the fuzzy number for deciding activity duration and applies the cost function for solving the problems of previous scheduling methods. This paper also analyze the utility and property of Fuzzy-MEOH algorithm through the comparison between Fuzzy-MEOH algorithm and existing MEOH algorithm.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2000.04a
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• pp.577-580
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• 2000

종합병원에서는 많은 환자들의 데이터를 효과적으로 관리하기 위해 각종 자료를 전 산화하고 있으며, 그곳에서 근무하는 간호사들은 VDT (Visual Display Terminal) 앞에서 작업시간의 대부분을 보내야만 한다. 간호사들의 요통 유병률이 타 직종에 비해 높은 편이며, 업무와 관련해서 경험한 요통이 간과되는 경향이 있고, 사고보고를 하지 않는 경우가 많아서 실제의 요통 발생률은 보고된 것보다 더 높을 수 있다［1］는 연구결과가 발표된 바 있으며, 이러한 이유에는 여러 원인이 있겠으나, 그 중에서 특히 VDT작업을 하는 간호사들과 작업환경과의 관계를 규명해 보고자 서울 지역의 일부 종합병원 VDT(Visual Display Terminal) 작업 간호사들을 대상으로 실태조사를 하였다. 본 연구의 목적은 VDT 작업 간호사들의 설문지 응답과 직무분석 그리고 작업자세와 작업환경조건 등을 고려하여 VDT증후군에 대한 위험요인을 파악하고, VDT 관련 직업병 예방대책을 마련하고자 하였다. 설문지 분석결과 종합병원 간호사들의 근무환경 및 업무활동과 통증발생 결과간에 관련성이 있음을 알 수 있었다. RULA 프로그램 분석결과인 Level 5가 나왔으며, 이는 3단계 위험수준을 가리키는 것으로 곧 작업환경을 바꾸어야 하는 것으로 나타났다.

• Science of Emotion and Sensibility
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• v.15 no.2
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• pp.249-258
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• 2012

The aim of this study was to investigate the effects of aesthetics of smartphones on subjective and objective usability by the task factors. Although several studies have focused on the effects of aesthetics on subjective and objective usability, correlation between aesthetics and objective usability is ambiguous. Using smartphones which have same functions but different aesthetics, thirty-six subjects were asked to complete one of 3 types of tasks (inputting information, searching information, enjoying information). Both performance data and subjective measures were recorded. The results showed that high aesthetics had a more positive effect on subjective usability than low aesthetics before and after use, with smaller difference after use. High aesthetics seemed to yield longer task completion times. But objective usability was not significantly affected by both task factors and aesthetics. The results indicated that aesthetics may have multiple effects that go beyond affective satisfaction. The findings of this study could be applied to predict effects of aesthetics on subjective and objective usability in usability testing.

• Journal of the Korean Institute of Gas
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• v.25 no.2
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• pp.52-63
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• 2021

Analysis of risky behavior factors for workers in the manufacturing industry enables effective human error prevention and systemization of an efficient safety management system. This study examines the relationship between the effects of workers' work psychology, work environment, and work deviation factors on risky behavior intentions and the effects of such risky behavior intentions on risky behaviors. Among the small and medium-sized manufacturing industries, the analysis was focused on a survey of 80 workers in the manufacturing and processing industry. Looking at the results, it was found that work psychology and work deviation had an effect on the intention of risky behavior, but the work environment factors corresponding to job satisfaction and workload did not affect the intention of risky behavior. The relationship with colleagues, the degree of satisfaction or dissatisfaction with the job, the degree of importance of the job that the worker feels, and the tightness of time to digest a large amount of work do not affect intentionally inducing dangerous work, but they do affect risky behavior. In the absence of intention, the work environment factor was found to accompany dangerous behavior.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2002.11a
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• pp.329-334
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• 2002

복잡해진 생활과 작업 중에 받는 스트레스는 직종과 지역에 관계없이 모두의 문제가 되고 있다. 현대인의 고민거리인 스트레스는 우리 신체에 무조건 있어서 안 되는 것이 아니라 과로할 때 질병을 가져오고 각종 사고를 유발하는 원인이 되는 것으로 의학전문가들은 여러 매체를 통해서 그 영향을 보고하고 있다.(중략)

• TTA Journal
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• s.45
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• pp.161-170
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• 1996

TTA 대표로서 참가하였던 ETSI 제24차 기술총회(TA)와 제25차 총회(GA) 결과를 정리하였다. 이번 회의의 가장 큰 관심사는 EPII(European Project of Information Infrastructure) 작업결과였으며, GMM (Global Multimedia Mobility) 관련 작업보고서도 관심을 갖게 하는 분야다. 지면 관계상 항목별 상세 정보는 싣지 못하였으므로 관심있는 분은 참조문헌을 참조하기 바란다.

• Korean Journal of Construction Engineering and Management
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• v.5 no.2 s.18
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• pp.64-71
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• 2004

A daily report is one of the critical documents in construction projects, since it helps them keep track of various as-built information. Despite the important role in progress management, the daily reporting process is time-consuming, and the representation of task information on daily reports are not effective enough to accumulate daily as-built information for further use in project management. Task information is composed of a specific work type and a location where the task is performed, which means that the same type of work is repeated over the locations. However, in many cases the task locations are described differently depending on a reporter's preference or experience. Without representing task location information effectively, it is difficult to accumulate and to reuse as-built information. The objective of this research is to build a framework for generating task information which can be efficiently accumulated and reused for progress management. To do so, this research built a task information model with focusing on the representation of task location associated with a work type, and developed an information system that supports automated and interactive generation of task information.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1991.11a
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• pp.49-53
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• 1991

최근 단위 시간당 생산성 향상을 위한 기계적 시스템의 작업속도가 계속적으로 증가되고 있으며, 그에 따라 관성력과 모터의 회전 토오크를 줄이기 위하여 시스템을 구성하고 있는 요소들의 구조 경량화 작업이 필요하게 되었다. 따라서 종래의 해석이론을 벗어난 메카니즘의 동탄성해석에 대한 중요성이 대두되었고, 이는 특히 기계의 작동속도에 대한 공진현상 및 위치 정확도와 밀접한 관계가 있기 때문에 품질향상면에 있어서 매우 중요하게 인식되고 있다.(중략)