• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2007년도 정기 학술대회 논문집
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• pp.205-210
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• 2007

The existing capacity spectrum method (CSM) is based on the displacement based approach for seismic performance and evaluation. Currently, in the domestic and overseas standard concerning seismic design, the CSM to obtain capacity spectrum from capacity curve and demand spectrum from elastic response spectrum is presented. In the multistory building, collapse is affected more by drift than by displacement, but the existing CSM does not work for story drift. Therefore, this paper proposes an improved CSM to estimate story drift of structures through seismic performance and evaluation. It uses the ductility factor in the A-T domain to obtain constant-ductility response spectrum from earthquake response of inelastic system using the drift and capacity curve from capacity analysis of structure.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2013년도 추계학술대회
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• pp.787-789
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• 2013

스마트기기가 대중화 되면서 그에 따른 많은 응용프로그램이 개발 되고 있다. 특히, 스마트 폰 시장에서 높은 점유율을 가지고 있는 안드로이드의 경우 많은 응용 프로그램이 개발되고 있고, 그에 따라 리소스가 사용 가능한 공간이 충분 함에도 불구하고 응용 프로그램의 서비스 프로세스가 원활히 돌아가지 않아 응답시간이 지연될 경우가 발생 한다. 본 논문에서는 응용 프로그램의 응답시간이 지연되는 상황을 분석하고 문제점을 찾아 해결하기 위한 방안을 모색 할 수 있도록 하는 응용프로그램 서비스에 대한 응답시간을 파악하는 분석도구를 구현하였다.

• Smart Structures and Systems
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• 제8권2호
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• pp.157-172
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• 2011

A new method for both local damage(s) identification and input excitation force identification of beam structures is presented using the dynamic response sensitivity-based finite element model updating method. The state-space approach is used to calculate both the structural dynamic responses and the responses sensitivities with respect to structural physical parameters such as elemental flexural rigidity and with respect to the force parameters as well. The sensitivities of displacement and acceleration responses with respect to structural physical parameters are calculated in time domain and compared to those by using Newmark method in the forward analysis. In the inverse analysis, both the input excitation force and the local damage are identified from only several acceleration measurements. Local damages and the input excitation force are identified in a gradient-based model updating method based on dynamic response sensitivity. Both computation simulations and the laboratory work illustrate the effectiveness and robustness of the proposed method.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1992년도 추계학술대회 논문집
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• pp.198-203
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• 1992

There are two important variables in machining process control, which are feed and cutting speed. It is possible to improve the machining accuracy and the productivity by maintaining the optimal feed and cutting speed. IN this work, a controller is designed to achieve on-line cutting force control based on the modeling of cutting process dynamics established through step response test. Two schemes are proposed and implemented. The first is feed control under the constant spindle speed and the second is spindle speed control under the constant feed. Finally, both are proved to work properly through simulation and experimentation.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2008년도 학술대회 2부
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• pp.417-423
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• 2008

기존의 명화를 인터랙티브화하여 관람자에 반응하는 영상을 제작 하였다. 명화와 자신이 함께한다는 새로운 개념을 시도하였으며 동시에 관람자의 색을 인지하여 명화가 바뀌는 시스템을 기획 하였다. 샤갈(Marc Chagall)의 작품 속에 관람자가 투영되고 동시에 작품의 정체성에 맞는 다른 BGM으로 상황을 연출한다. 관람자가 움직이면 작품에 모션이 투영되지만 움직임이 없는 상황엔 자연스럽게 작품만이 보여 진다. 영화 4작품은 '칼라트랙킹'에 의해 관람자의 레드(Red), 그린(Green), 블루(Blue)에 각각 반응 하도록 제작 하였다.

• 산업경영시스템학회지
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• 제24권69호
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• pp.51-64
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• 2001

A laboratory experiment was conducted to investigate the effects of working posture. work/rest ration, and task type on the physical workload in automobile assembly jobs. Ten healthy male university students participated as subjects in the experiment. East subject performed 18 experimental session with combination of 3 working posture 3 work/rest ratio and 2 task types. To examine the effect of various working conditions on workload, DMG analysis was performed on 4 different muscles in the neck an arm area, Also RPE scale and heart rate were taken as response variables. The result showed that all working conditions considered in the experiment had significant effects on the workload concluding that labor intensity in auto assembly jobs should be adjusted with respect to different levels of working posture, work/rest ratio, and task type. Detailed analysis are presented in the paper.

• 대한안전경영과학회지
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• 제5권4호
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• pp.195-208
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• 2003

All managers should consider both of job performance and job satisfaction as influential key results to be achieved by people at work. One without the other is simply insufficient to meet the high standards of today's workplace. Some workers achieve a sense of personal satisfaction from their jobs while others do not. the others achieve high levels of task performance while others do not. The test of a manager's skill in building value added jobs is to discover what work means to other people, and then to create work environments that help them achieve high levels of both performance and satisfaction. this study set out to investigate the job satisfaction of the employees at work station along with the needs resulting from exploding population of salary citizens. This paper aims to survey and analyze the job satisfaction of the workers and a potent influence factors of Job stress for organization management.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.716-717
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• 2015

A construction temporary work is main process and importance trade section. A technology system of construction temporary has very low availability of field works and needs improvements in Korea as construction site has a quick response about new requirements. This study reviews literature researches and can verify that changes to a comprehensive technology system for construction site. In addition, it suggests a breakdown structure of new standards for temporary construction technology based on views of construction site managers. Meanwhile, temporary construction technology in Korea has changed with a specification of construction temporary work which had been revised in 2014. However, the revision is merely dividing the design and building off of construction temporary technology. It is lacking in many ways to change this in a new standard system for temporary construction technology. Henceforth, it needs to develop a standard system for temporary construction technology and a professional system that is appropriate for different purposes by detail trade sections.

• 디지털산업정보학회논문지
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• 제14권4호
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• pp.189-204
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• 2018

The purpose of this study is to examine an organizational performance difference by individual utilization level of the smart work. The Smart work help minimizing business process and improving organization productivity based on information technology. This new technology provides a flexible way of the task through smart-work center, videoconferencing, telecommuting, mobile(remote control) and business-only messenger. This investment changes organizational culture, institutions and behavior by new technology applying. The organization system change due to smart work has trouble between alteration preferences and existing maintains a group. In response, the organization should make investment justification of smart work for institutional and culture stabilized by a new system in organization. I set up the analytical process of four stages for empirical research. It will analyze an operation difference of the smart work between pre and post investment in the first-step analysis. The two-step analysis will conduct a text mining analysis of smart work operations. The three-step analysis will identify organization performance differences among individual levels in smart work. The four-step analysis will identify a factor difference in organizational performance by individual utilization level on smart work. According to the study, It has been revealed a difference between the pre and post investment performance on smart work. The text mining analyses many appeared an improvement opinion of organizational culture. Next, there is a difference in organization performance among utilize groups of smart work. Furthermore, the factors of organizational performance among groups appeared differently. The theoretical contribution of this study provided to expand the organizational theory of organization change and resistance. The practical implications provided to require a strong guideline an organizational culture and institution for smart work.

• 한국콘텐츠학회논문지
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• 제22권5호
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• pp.446-455
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• 2022

본 연구는 우리나라 소방공무원의 코로나바이러스감염증-19(COVID-19) 대응 업무 실태를 파악하고 COVID-19와 관련된 경험이 우울증에 미치는 영향을 알아보았다. 소방공무원 53,557명이 온라인 설문조사에 참여하여, 본인 및 동료의 COVID-19 감염 경험, COVID-19 대응 업무 경험 및 업무 강도, 사회적 낙인의 두려움, 불안 및 우울 증상에 대한 설문에 답했다. 자료 분석 결과, 2021년 3월 기준으로 전체 53,557명 중 45.76%가 COVID-19 대응 업무 경험을 한 것으로 나타났다. 주요 직무군 별로는 구급 업무군에서 COVID-19 대응 업무의 수행 비율이 가장 높았고, 대응 업무 강도와 사회적 낙인의 두려움 역시 다른 직무군에 비해 컸다. 위계적 회귀분석 결과, 동료의 감염, 대응 업무 강도, 사회적 낙인의 두려움이 COVID-19 팬데믹 중 소방공무원의 우울증을 설명하는 유의한 변수인 것으로 확인되었다. 본 연구 결과는 COVID-19 팬데믹 시대에 소방공무원들에게서 우울증을 발생시킬 수 있는 위험 요인을 제시하며, 감염병과 관련된 소방공무원 직군의 우울증 발생 예방과 증상 완화를 위한 노력에 실질적인 토대를 제공한다.