• Sleep Medicine and Psychophysiology
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• v.1 no.1
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• pp.9-19
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• 1994

Disorders of intitating and maintaining sleep(DIMS : insomnia) may be a symptom of some other disease or the basic, root problem in some patients. DIMS is usually treated by private physicians or psychiatrists, initially. Many physicians can do to improve the quality of life of the sleep disordered patients by appropriate evaluation and management For the effective management of DIMS patients, the accurate differential diagnosis is essential. In polysomnographic evaluation for insomnia, the physician should consider the aspects of cost-effectiveness to provide the maximal benefits for the patients. For the purpose of this, evaluation of DIMS complaints outside the sleep disorder clinic, indication for referral to a sleep disorder clinic, the role of polysomnopraphy in evaluating DIMS, and polysomnographic findings of different types of DIMS are discussed, together with possible way to diagnose them.

• Journal of the Ergonomics Society of Korea
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• v.16 no.3
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• pp.77-87
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• 1997

This paper describes the developement of a Design Issue Management System (DIMS). Although human factors engineering has been recognized as one of the critical activities in the design of man-machine system, it has been hardly successful nor effective in practice to cope with the hyman factors requirements by regulations. For supporting the human factors engineering in nuclear power plants, DIMS ahs three major modules : Design Requirements Data Base, Design Issue Tracking System, Issue Evaluation Support System. These modules function as formal verification architects that the licensing authority requests for verifying the safety of the equip- ment and facilities in nuclear power plants. An example application to an operator support system, named Critical Function Monitoring System, during its independent review of the human factors shows the usage and the benefit of DIMS.

• Journal of the Korean Society for Precision Engineering
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• v.14 no.1
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• pp.58-68
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• 1997

In order to provide economic high-quality products to customers in a timely manner, companies have tried much effort to decrease the time period of engineering design and information management. As a part of this effort, we have developed the Drawing Information Management System(DIMS) based ofn GT(Group Technology) that could decrease design processing time by speedy and rational management of design processes. The characteristics of DIMS are as follows: First, the concept of Concurrent Engineering was applied to DIMS. Through LAN, reviewers are able to attach comments to dlectronic documents by anno- tation functions called Mark-up. The reviewer annotations are collected and combind with the original document to revise the documents. Second, we have developed a Classification and Coding(C&C) system suitable for electronic component parts bassed on GT(Group Technology). The C&C system makes both parts and drawing with similar characteriscs into families and helps users search existing documents or create new drawings promptly. Finally, DIMS provides the Engineering BOM(Bill of Material) using the concept of Family BOM based on model options.

• Smart Structures and Systems
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• v.3 no.4
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• pp.475-494
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• 2007

This paper deals with the development of an innovative distributed construction system based on smart prefabricated concrete elements for the real-time condition assessment of civil infrastructure. So far, two reduced-scale prototypes have been produced, each consisting of a $0.2{\times}0.3{\times}5.6$ m RC beam specifically designed for permanent instrumentation with 8 long-gauge Fiber Optic Sensors (FOS) at the lower edge. The sensing system is Fiber Bragg Grating (FBG)-based and can measure finite displacements both static and dynamic with a sample frequency of 625 Hz per channel. The performance of the system underwent validation in the laboratory. The scope of the experiment was to correlate changes in the dynamic response of the beams with different damage scenarios, using a direct modal strain approach. Each specimen was dynamically characterized in the undamaged state and in various damage conditions, simulating different cracking levels and recurrent deterioration scenarios, including cover spalling and corrosion of the reinforcement. The location and the extent of damage are evaluated by calculating damage indices which take account of changes in frequency and in strain-mode-shapes. The outcomes of the experiment demonstrate how the damage distribution detected by the system is fully compatible with the damage extent appraised by inspection.

• IE interfaces
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• v.9 no.1
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• pp.41-52
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• 1996

As part of effort to reduce the process time from design to manufacture and delivery, the concept of CE(concurrent engineering) has been applied to design process. In this research, the drawing information management system (DIMS) was developed based on CE. The system can distribute electronic documents of drawing or work instruction parallel to all reviewers simultaneously and collect their annotations through network. Mark-up functions are used for annotations on the electronic documents. DIMS is a system which integrates drawing management, engineering BOM, CAD and raster drawings, etc. In this system, a SUN workstation is interfaced with PCs by LAN. CIMCAD-2D, Image Hunter, and ORACLE RDBMS are used for CAD drawings, raster drawings, and drawing information management, respectively. As an integration tool for all the information, LINKAGE is adopted.

• Proceedings of the Korean Nuclear Society Conference
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• 1997.05a
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• pp.245-250
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• 1997

본 논문에서는 원자력발전소의 설계에 필요한 인간공학 업무를 원활하게 지원하기 위하여 설계 현안 관리체계(DIMS)를 제안하였다. 설계현안 관리체계에는 설계요건 DB 시스템, 현안추적 시스템, 현안의 중요도 평가 시스템 등이 포함되어 있어서 설계과정을 지원할 수 있다. 또한, CFMS 검토에 응용한 사례를 약술하여 실무적인 활용과정을 설명하였다.

• Proceedings of the ESK Conference
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• 1997.04a
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• pp.270-280
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• 1997

원자력발전소의 인간공학적 설계 및 검토를 효과적으로 수행하기 위한 설계 현안관리체계 (Design Issue Management System;DIMS)를 구축하였다. DIMS는 세가지 기능을 갖도록 구성되었는데, 규제문건들로 부터 추출된 설계상의 인간공학적 요건들을 분석하고 관리하는 요건 분석 기능, 규제 기관, 운전원 및 설계자로 부터 제기된 설계 현안의 추적 기능, 설계상의 의사결정을 지원하기 위한 현안들의 중요도 평가 기능의 세부분으로 구성되었다. DIMS의 활용사례로 원자력발전소 감시계통의 일부인, 울진 3,4호기 CFMS(Critical Function Monitoring System) 화면설계 검토에 적용하였다. 주요 검토 업무로 CFMS 화면 설계에 대한 가용성 검토, 적합성 검토, 유효성 검증을 수행하였고, 이 과정을 통하여 울진 3,4호기 CFMS 화면 설계의 인간공학적 문제점(Human Engineering Discrepancy; HED0들을 찾아내었다. HED들은 문제의 심각성에 따라 조기 해결 요망, 가능한 한 조기 해결 요망, 장기적 해결요망의 세 그룹으로 분류되었다. HEE의 심각성 평가는 인간공학 전문가, 설계자, 운전원의 세 그룹에 의하여 평가되었다. 검토 결과 최종적으로 CFMS 화면에 대한 인간공학적 설계 개선의 근거 로 사용되었다.

• Fire Science and Engineering
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• v.20 no.3 s.63
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• pp.71-84
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• 2006

This research is designed for Disaster Mangement Information System(DMIS) which is essential to management of disaster. Management of disaster is not only social problem but also official policy. To perform the research, we examined the necessities, characteristics, and problems of DMIS, analyzed the actual conditions of DMIS in operation, and reviewed relevant documents. To investigate the actual conditions of using DMIS, we analyzed degrees of cognition, channels of cognition, ratio of application, the reason why people do not use DMIS, and the fields suitable for applications of DMIS. And, to evaluate DMIS, we performed regression analysis. In that analysis, we set utility, accessibility, quickness, compatibility, and public ownership of information as independent variabls, and we set overall estimation as dependent variable. Objectives of this research are to understand the actual conditions of DMIS in operation, to evaluate the DMIS from the viewpoint of fire officers, to reveal the problems of DMIS, and to present better ways for using DMIS from its own problems. For analysis of data, we used frequency analysis, T-test, correlation analysis, and regression analysis. From the results of the research, we advised that better application of DIMS requires Standardization and compatibility of DIMS, public ownership of information, use of IT(Information Technology) like mobile information system, management and analysis of disaster information, maintainment of personnel specialized in information part, and necessities for education and training.

• Journal of Information Technology Services
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• v.11 no.1
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• pp.109-123
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• 2012

There are many evaluation models to measure the informatization level of an organization and information system project in the ministry of National Defense of Korea. A information system has to keep up with the environment change as well as the advanced recent information technology (IT). Therefore, the evaluation of an information system project to enhance the performance of the information system should be different from the existing evaluation methods. This study suggests an evaluation case of information system projects to enhance the performance of an information system. In order to achieve the objective of this study, the following steps are taken. First, it reviews the background and the scope of the project to enhance the performance of the Defense Material Information System (DMIS). And it sets up the evaluation logic and develops performance indexes. Then it applies these newly developed performance indexes to the information system project and measures the performance. From this study, we found that both the diffusion and the experience accumulation by its continuous use are significant factors in such evaluations.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.55-57
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• 2022

In this study, a customized semi-passive RFID receiver module was implemented for in-VIVO deep tissue photo-therapy. A novel wireless technique is required due to a limitation of RF communication in body environment, as internal body has a complex structure such as, skin, fat, skeleton, water, and so on. Recently, coherently incoherent beamforming (CIB) based on RFID was introduced and it is able to transmit wireless signal with high reliability under the incoherent condition such as in-VIVO deep tissue. The proposed miniature photo capsule based on RFID consists of miniature controller, ultra small LED array and wireless RFID chip. RF Reader can access with standard RFID protocol (ISO 18000-6c) using UHF RFID antenna, a control command is wirelessly writtern on USER Bank memory. With received control command, therapy LED array dims with mulilevel under timer control. The signal process of designed RFID photo therapy capsule is analyzed and evaluated under the various environments in detailed.