A Study on Human Performance in Graphic-Aided Scheduling Tasks

백동현,오상윤,윤완철 한국경영과학회 1994 한국경영과학회 학술대회논문집 Vol.- No.1

In many industrial situations the human acts as the primary scheduler since there often exist various constraints and considerations that may not be mathematically or quantitatively defined. For proper design of interactive scheduling systems, how human strategy and performance are affected by the fashion of human-computer interaction at various levels of task complexity should be investigated. In this study, two scheduling experiments were conducted. The first one showed that human schedulers could perform better than simple heuristic rules with each of typical performance measures such as average machine utilization, average tardiness, and maximum tardiness. In experiment 2, the effect of providing computer-generated initial solution was investigated. The results was that in complex problems the subjects performed significantly better when the initial solutions were generated by themselves, evidencing the importance of the continuity of strategic search through the problem.

반도체 일관가공 공정의 수율개선 및 예측을 위한 데이터마이닝 기법과 OLAP 의 활용

백동현,남정곤 한국경영정보학회 2002 한국경영정보학회 학술대회논문집 Vol.2002 No.-

불꽃화재감지기의 시험기준 개선에 관한 연구

백동현 한국화재소방학회 2014 한국화재소방학회논문지 Vol.28 No.6

불꽃감지기는 열, 연기식 감지기보다 화재검출이 빠르고 높은 층고에서도 효과를 발휘할 수 있어 가격이 고가임에도많이 사용되고 있다. 불꽃감지기의 동작신뢰성 향상을 위해 성능시험, 감도시험, 옥내 · 외구분, 제품사후관리나 관리감독에 대하여 외국 기준과 비교하였다. 그 결과 유럽과 미주지역에는 부작동시험, 옥내 · 외구분이 없고 감도조정 기준이있다. 성능시험중 작동관계는 제품의 신뢰성이나 내구성에 중심을 두고, 부작동시험은 현장의 환경에 맞게 감도를 조정할 수 할 수 있게 한다. 또한 제품사후관리 조항 추가 및 제품에 대한 품질관리 책임과 인증기관의 관리시스템, 특수감지기의 제도권 도입, 상호 관련기구들의 규정 마련이 필요하다. Flame detectors has been used more than heat & smoke detector, because this is more effective to catch fire and ceilingheight in spite of high price. For upgrade to flame detector, Compare to national or abroad standard about performancetest, sensitivity test, sectioning indoor or outdoor, after service and management. As a result, Europe and America haveonly sensitivity test, no have not operation test and sectioning indoor & outdoor. In performance test, action is put to focusto credit and durability, Not operation test is to be able to tune the sensitivity to match the environment of the site. Also,we need code about aftercare, quality assurance responsibility and implement special detector institution by CertificateAuthority implement.

DEA를 활용한 지사 성과 평가 방법론에 관한 연구

백동현,차성엽 한국산업경영시스템학회 2014 한국산업경영시스템학회 학술대회 Vol.2014 No.춘계

Following the Enterprise's globalization grows, we are going to focus on the performance of branch more. Choosing the performance index is very important today. Thus, this research is regarding the methodology of new measurement of performance in branch business and consist of DEA(Data envelop analysis) and ANP(Analytic network process). First, I find out weight values using ANP, then using it as criterion, I choose the main influential factors on branch's activities and production. Then I suggest DEA-2Stage methodology and conduct the analysis of actual proof on the public enterprise The DEA-2Stage methodology is for discrimination the activity's effectiveness and the production's efficiency. The DEA-2Stage in branch methodology can help guide the strategy's direction as well as can measure the performance. Also the result of ANP is from the paired comparison made by current personnel and professional so it can applicate the suggestion of the branch strategy in future. Based on the DEA result, it also give the benchmark branch model to the branch which has low effectiveness level.

옥외형 화재경보시스템의 개발과 성능시험에 관한 연구

백동현,길민식 한국화재소방학회 2013 한국화재소방학회논문지 Vol.27 No.5

본 연구는 자연 발생적인 화재 및 방화자에 의한 화재를 탐지하는 고효율·저비용의 옥외형 화재경보시스템으로 중소문화재, 천연기념물 및 옥외 시설물 등 화재 발생 시 관리·감시가 취약한 곳을 대상으로 한 소방시스템의 옥외 적용시 성능 및 시험에 대한 것이다. 재래적 화재감지시스템으로부터 탈피하여 지능적인 이동형 무인 화재감지시스템의 도입을 위해 화재경보시스템 성능시험, 기능시험, 옥외 환경시험, 불꽃시험 및 EMI/EMS 적합시험 등을 실시하였다. 성능시험, 기능시험, 불꽃시험 및 옥외방치시험을 3개월간 실시한바 양호하였고, 온도변화 성능시험도 −30~70 oC에서 양호하였으며 EMI/EMS 시험도 적합하였다. 불꽃검출거리는 75 m까지 증가되었고 대기모드 전원은 4시간 증가, 운영모드 전원에서의 동작시간은 3일까지 가능하였으며 센서뿐만 아니라 영상으로 상황을 인지하는데 적합함을 확인하였다. This paper is concerned with the Performance and Reliability Certification for fire detection system in outdoor area such small and middle sized cultural assets, natural monument and outdoor facilities. Especially, if a fire were to occur in vulnerable area, it is difficulty to detect a fire. therefore we propose a high efficiency and low cost unmanned fire detection system in capable of an early detection regardless spontaneously fire or firebug. for Adoption of Intelligent Fire Detection System with movable and unmanned function breaking from the existing Conventional Fire Detection System,this Range of R&D includes the Performance test, Function test, Field test, Flame Detection test and EMI/EMS Compliance test. the Result data of Performance test, Function test and Field test is generally good during 3 months. also we checked that thermal variation test and EMI/EMS compliance test are good result data within allowable range. As a result of general test, we verified improvement results that the measure distance of fire detection extend 75 m, the Power of waiting time increase 4 hours, the Power of operation time increase 3 days and the context awareness with video as well as sensors.

GIS를 고려한 KMS(Knowledge Managemert System) 구축방안 연구

백동현,진희채,나준엽,Baek, Dong-Hyeon,Jin, Hui-Chae,Na, Jun-Yeop 한국공간정보학회 2002 개방형지리정보시스템학회 논문지 = Journal of the Korea Open Geogr Vol.4 No.1

지리정보시스템의 구축이 활발하게 진행되고 있으나, 활용성에 대하여 의문을 제기하는 사례가 많아지고 있다. 그것은 기존의 GIS 구축이 정보구축 및 관리 시스템 구축에 중점을 두었기 때문이다. 이러한 GIS의 활용성을 높이기 위하여 최근 활발히 개발되고 있는 KMS와 연계될 수 있는 GIS 구축방안을 연구하고자 한다. 이를 위하여 먼저 KMS의 개념에 대하여 살펴보고, GIS와 연동하는 KMS 구축방법론을 제시한다. 그후 이 방법론에 따라 건설부문의 KMS 시스템을 구현하여 GIS와 연동 시스템을 구현하여 본다. 이를 통하여 다양한 지식정보 관리에서 공간정보가 갖는 중요성 및 GIS 연계방안을 확인할 수 있다. Since building up the Geographic Information System actively, we doubt whether we make good use of those system. These problems are caused by that legacy GIS is focused on the information construction and management of various facilities. So raising up the usability of GIS, we study on the GIS based on KMS that is active developed recently. First, we discuss about the concept of KMS and make the method to develop KMS with related to GIS. Then we make up the pilot system(g-KMS) according to the method for using on the filed of Construction. Consequently, we make sure that Spatial information is so important among various knowledges and find the why how to spatial knowledge build up.

PRODUCT SAFETY_안전관리시리즈: 가전기기의 화재위험 식빵을 더욱 맛있게 먹을 수 있는, 토스터 화재위험

백동현,Baek, Dong-Hyeon 한국제품안전협회 2011 제품안전 Vol.206 No.-

Sputtering Arc에 대응하는 부하적응성 있는 다차원 기법 Arc 검출에 관한 연구

백동현,김현우 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.4

MEMS 관성센서의 성능 Parameter 도출을 위한 자동화 시험기법 연구

백동현,홍성경 제어로봇시스템학회 2009 제어로봇시스템학회 국내학술대회 논문집 Vol.2009 No.9

MEMS technology has been extensively used in various applications since its development. One of the common applications is an inertial sensor. Growing popularity of MEMS inertial sensors is due to the sensor’s miniature size and economic cost. On the other hands, a low bias stability and a strong temperature characteristic of MEMS based product affect the accuracy of the data output. This is fatal to the applications that require high accuracy because even a small margin of the error could accumulate and lead to the utter failure in the application’s performance; therefore, it is necessary to control or compensate the sensor’s bias and scale factors. Measurement based correction requires a large amount of human work and a time consuming observation. This document presents a framework for the automation of the conventional correction. For the automation, the rate table control software and the software for data collection and analysis have been developed. With the implementation, the speed of overall process was upgraded by using default reference values to correct bias and scale factors. This automatic test technique expects to increase overall testing efficiency by conserving time and human work while increasing an accuracy of the result.

안전 체험교육과 안전교육 활성화 방안

백동현,Baek, Dong-Hyeon 한국화재보험협회 2009 防災와 保險 Vol.129 No.-