• The Transactions of the Korea Information Processing Society
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• v.6 no.8
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• pp.2000-2007
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• 1999

Recently, DDS (Distributed Database System) has been often implemented on VAN (Value Added Network) as we know the amazing expansion of information network. DDS can yield significant cost and response time advantages over centrailzed systems for geographically distributed organizations. However, inappropriate design can result in high cost and poor response time. In a DDS design, the main problem is 1) how to select proper computer, and 2) how to allocate data fragment into proper nodes. This paper addresses DDS design problem of selecting the proper class of computers and the allocating data files on VAN. Also, the formulated model includes tow objectives, the operating and investment cost. GA (Genetic Algorithm) is developed to solve this mathematical formulation. A numerical experiment shows that the proposed method arrives at a good solution.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.30 no.6
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• pp.567-576
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• 2017

The object of this research is an establishment of BIM-based quantity takeoff(QTO) and cost estimation guidelines for reinforcement concrete structures focused on improvement of field applicability in transition period from 2D drawing-based environment to 3D BIM-based environment. Preliminary studies on existing guidelines and standards for BIM modeling, QTO and cost estimation of reinforcement concrete structures are performed, and then a standardization of BIM-based cost estimation process is proposed through comparative analysis between 2D drawing-based cost estimation process and 3D BIM-based. In addition, modeling, QTO, and cost estimation processes of cost-BIM model for RC structures are conducted. The contributions of this research and the guidelines suggested by this research are 1) lowering barriers to entity to the new BIM-based environment for small size companies, 2) reducing construction cost by a close estimate, 3) establishing the foundation for integrated management of informations through construction project life cycle, 4) and ultimately, developing the BIM ecosystems.

• Journal of Digital Convergence
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• v.10 no.8
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• pp.275-286
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• 2012

The purpose of this study was to investigate stresses from job, patients and guardians experienced by general hospital nurses caring for elderly patients and their stress coping methods. For this study, data were collected from 280 nurses employed at general hospitals with the capacity of more than 400 beds which were located in Seoul. Frequency analysis, t-test and one-way ANOVA were utilized to analyze the data and Scheffe test was used to conduct post-hoc tests. This study found that, of the general hospital nurses' three types of stresses, stress from guardians was the most serious one, followed by stress from patients and stress from job; and that, of the six coping methods utilized by the general hospital nurses, social support was the most-utilized one, followed by problem-focused coping strategy, positive perspective, tension relaxation, indifference and hopeful perspective. Based on these findings, follow-up studies were suggested to develop the hospital nurses' abilities to cope with the ever-changing complex circumstances for the elderly patients.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.7
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• pp.510-515
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• 2017

The Goon-rearrangement in 1914 caused a significant change in the Goon office buildings' construction in the Japanese colonial period. The aim of this study was to discover the administrative procedure for the construction of them around the Goon-rearrangement and also in the 1910s generally, the Japanese government-general's policy for the construction and the buildings' condition. This study analyzes the official documents for the Goon-rearrangement between the Japanese government-general of Korea and the To, the digital images of the buildings kept in the National Archive of Korea and the newspapers published in 1910s. This paper examines what the effect the construction had under the stance of the Japanese government-general of Korea, which was very passive regarding the construction of new buildings.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.5
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• pp.7-12
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• 2016

In general, crowded places, such as banks, government offices and hospitals, require the customer to wait for a certain period of time. Thus according to the order of the wait, customers takes waiting numbers. In this way, so customers should always check the order of waiting processes that they can not carry on another affairs. In this paper, we develop an application, that is SmartQ, managing queue using a mobile handset. SmartQ is an easy-to-use application allowing customers an alternative to the classic queue management systems. With this application, they are aware of the waiting conditions in real time for each of their services. They can indicate the time they wish to come and take a virtual ticket in the queue. It provides service notification, the number of waiting person, and expected waiting time.

• Journal of the Korean Association of Geographic Information Studies
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• v.10 no.4
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• pp.142-152
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• 2007

Geotechnical information database, foundation of underground geographic information system in 2nd NGIS plan, had been developing by Ministry of Construction and Transportation since 2000. This database contains not only soil condition, such as depth, type and color of layer, and ground water level, but also engineering properties used for foundation design and construction, for instance, standard penetration test, compression test. But, it is difficult to apply this database for analyzing and designing geotechnical works, because report document is only offered. In this paper, we have developed web-based geospatial information system for the effective uses. First, underground cross-section model is generated by location, layer, and engineering properties of geotechnical information database at the realtime process. Second, earth volume, bearing capacity, and settlement is calculated and potentials of soft ground, liquefaction are evaluated through pre-defined empirical formula. This process is operated by web-based client. We wish to strengthen the application capacity through this system in construction planning and design works.

• Proceedings of the Korean Society of Computer Information Conference
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• 2010.07a
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• pp.515-517
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• 2010

본 논문에서는 글로벌 표준화 시스템으로의 확장성을 고려하고 자동화 처리 개념을 적용한 한국형 리서치 시스템을 개발한다. 리서치 시스템의 기반이 되어지는 설문조사의 종류에는 전화조사, 온라인조사, 면접조사 등의 조사방법이 있으며 현재 대부분의 프로세스가 수동적 작업화 상태에서 데이터를 수집 검증하여 비효율적인 상태로 운영되어지고 있다. 현재 일부 기업들이 자체 프로그램의 개발을 시도하고 있지만 전문 프로그래머들의 리서치 업무에 대한 업무분석 및 이해 부족과 외부 개발 용역에 대한 고비용성으로 대부분 시스템 구축에 완성도가 낮아 개발시스템 운영에 실패를 하고 있는 실정이다. 부가적으로 개별 기업들이 초기 개발비용을 감수하지 않기 위해 외국산 리서치 솔루션을 구입하면서 높은 제품 비용과 로열티 비용 부담으로 인하여 기업 리서치 시스템 구축을 통한 효율화를 이루지 못하는 실정이다. 본 논문에서는 산학협력 연구개발로 1회의 설문입력 과정으로 개별적인 전화조사, 온라인조사, 면접조사를 동시에 가능하도록 통합하는 자동화 시스템과 일반 사용자까지 쉽고, 빠르게 설문지를 입력하고 진행하여 컴퓨터에 의한 정확한 데이터를 신속하게 고객에게 전달 할 수 있는 서비스 체제를 구축하고 설문조사의 최종 단계인 데이터 분석 및 가공에 필요한 기본적인 분석, 통계 기능 제공과 오피스 프로그램 및 통계 프로그램인 SPSS프로그램과 호환성을 주어 리서치 운영 프로세스의 개선을 목적으로 한국형 자동화 리서치 솔루션을 개발한다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.9B
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• pp.1360-1368
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• 2010

Recently, as the development of Radio Frequency Identification (RFID) technology becomes active, the demand for services which can electronically manage the history and location information of major trees, including trees for cultural heritage restoration and nurse trees, has been increased. This information has been managed by separated drawings and documents or storing its information into PDAs and then structuring data files through input and computation. But, these methods imply limitations in terms of its extensibility and scalability. This paper has designed and implemented an RFID based Tree History Information System (THIS) for cultural heritage restoration. The purpose of the proposed system is to support to be able to effectively and consistently manage historical information of major trees and improve working processes by implementing mobile RFID services through wireless Internet or Local Area Network (LAN) as mobile communication networks. Through implementation, it is confirmed that the proposed system can manage the historical information of major trees more effectively than conventional methods and also improve previous field working conditions.

• Journal of the Korean Society of Hazard Mitigation
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• v.11 no.1
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• pp.29-35
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• 2011

This study not only investigates emergency medical personnel's posttraumatic stress(PTS), social support, work burden, and coping style but also identifies related factors which were exerted influence on PTS and active coping method of emergency medical personnels among the firefighters. The data were gathered from 143 emergency medical personnels who were receiving training. The data were collected by IES-R, consisting of twenty-two questions that determine the level of PTS, method used in Cho's research(2000) that deal with work burden, method used in Oh's article (2006) relating to social support, and sixty-two questions that deals with coping methods. Then the data gathered were analyzed using SPSSWIN 14.0 program. PTS of general characteristics showed significant difference in age, marriage status, education, and position. High risk group of PTS was 74(51.7%). Work burden, active and passive coping method, and three symptoms in PTS are significantly high(p=0.000) in high risk group. PTS was correlated with work burden(r=0.508, p=0.000), active coping method(r=0.375, p=0.000), and passive coping method(r=0.505, p=0.000) but not with social support. Related factors of PTS were work burden(0.371) and passive coping method(0.366). Also related factors of high risk group of PTS were work burden(odds ratio=1.064, 95% confidence interval:1.031-1.103) and passive coping(odds ratio=1.050, 95% confidence interval:1.022-1.080). Related factors of active coping method were PTS(0.392) and social support(0.158). To minimize the PTS of emergency medical personnels, the new policy should decrease their work burden and passive coping method and strengthen the social support to encourage active coping method.

• Journal of the Korean Society of Food Science and Nutrition
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• v.42 no.5
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• pp.808-817
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• 2013

This study was conducted to compare job satisfaction and factors related to job satisfaction between permanently and temporarily employed dietitians in school foodservices in the Gyeongsangnam-do area. A total of 204 questionnaires were used in the final analysis. The average age, length of employment, and monthly wage of temporarily employed dietitians was significantly lower than those of permanently employed dietitians. However, there was no significant difference of overall job satisfaction between permanently and temporarily employed dietitians, although the average pay, welfare benefits, and promotion factors for permanently employed dietitians was significantly higher. Work and pay factors had significant effects on the overall job satisfaction of permanently employed dietitians, while work factors and work atmosphere had significant effects on the overall job satisfaction of temporarily employed dietitians. In conclusion, there was a significant difference in overall factors related to job satisfaction between permanently employed dietitian and temporarily employed dietitians. The pay, welfare benefits, and promotion condition of temporarily employed dietitians should be improved to ensure the efficient management of the school foodservice workforce in the future.