• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.956-961
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• 2009

When construction engineers perform their work in the jobsite, they have to record as-built conditions in the project log (Data Collection). On the other hand, the engineers often have to refer to the construction documents when necessary at the job faces (Data Access). The practice of Data Collection and Data Access in the jobsite can be greatly enhanced by utilizing mobile computing with wireless communications. In this paper, two cases of mobile computing applications for construction field management are presented; Mobile Specifications System and Mobile Data Collection System. The demonstration of the process for developing two mobile applications is the primary purpose of the paper. The problems and issues involved with adopting mobile computing for construction field are also presented. The simple information framework for mobile computing has been also proposed as an outcome of the research. As for development tools, readily available relational database and wireless network have been used. The use of commercial mobile broadband was examined for data communication where local area network is not available.

• 한국사회복지학
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• 제61권4호
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• pp.85-108
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• 2009

본 연구는 결혼이민자 가족이 직면하고 있는 다양한 도전에 대해 사회복지실천현장의 효과적인 접근방법으로 임파워먼트 접근의 틀을 제시하고자 하였다. 구체적으로 첫째, 결혼이민여성의 프로필과 지원서비스현황을 파악하고, 둘째, 적응관련 쟁점을 정리하였다. 셋째, 적응쟁점을 개인과 가족 관계, 지역사회 관련 및 사회문화 관련으로 구분하고, 임파워먼트 기반 사회복지실천 접근의 내용을 각각의 쟁점별로 거시 중도 미시적 수준에서 논의하였다. 결혼이민자 가족을 위한 차별화된 접근은 다문화역량과 밀접한 관계에 있다고 보고, 사회복지사 자신과 사회복지기관, 지역사회의 문화적 편견에 대한인식과 다문화 지식 및 기술의 개발 필요성을 지적하였다. 끝으로 다문화역량 확보에 대한 사회복지학계와 실천현장의 대응에 대해 논의하였다.

• 대한방사선기술학회지:방사선기술과학
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• 제11권2호
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• pp.27-64
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• 1988

Most hospital administrators in our country have doubted whether or not the size of their hospital personnel staffs, and the personnel management styles implemented are efficient or not. Actually, increased personnel expenditures due to sophisticated specialization of medical practices has become the biggest hospital expense. Therefore, it is said that hospitals can be run move efficiently by implementing reasonable management strategies for hospital personnel management. In this paper, the departments of diagnostic radiography in 16 general hospitals in Seoul, which were classified into 4 groups by the scale of hospital beds, were used as sample cases. Then, the data for the number of X-ray examination by diagnostic item was collected from sample hospitals. The unit hour spent on X-ray examinations in each diagnostic service was quoted from "A Study on setting-up of the relative value units of medical services and on the structure of current fee schedules" written by Mr. Ik Je Seong. The data analysis results are as follows; First, the number of hours per day spent on X-ray examinations in 13 hospitals out of 16 hospitals, was shorter than the general daily working hours (8 hours). Second, in the morning there was not enough time to work for X-ray examinations required, with the available manpower. In the afternoon, however, the situation was diametrically opposed to that in the morning. Third, in light of above results, though most hospitals employ sufficient personnel for the quantity of the actural work, they were always short-handed where their works were performed Fourth, this study tells us that there is a maldistribution of the work in the schedule : too much work for the available personnel in the morning. The following recommendations are resulted from the data analysis described above. First, it is recommended that all out-patients coming again, except specific patients(G. B. or I.V.P. etc) who have to have their X-ray examinations on an empty stomach in the morning among out-patients, be required to visit the hospital in the afternoon. Second, it is recommended that all new out-patients be required to make a reservation in order to equalize the number of patients throughout the day. Third, it is recommended that all in-patients, except specified patients, be arranged to have their X-ray examinations in the afternoon. Fourth, it is recommended that part time workers be employed during peak hours. This recommendation, if applied in a wider scale, would allow hospitals to overcome the problem of the maldistribution of work and personnel, and then more efficient hospital management through the appropirate personnel management procedures could be expected.

• 한국CDE학회논문집
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• 제13권4호
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• pp.305-313
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• 2008

A configuration management system was implemented by applying PLM to the defense field. The PLM system has recently been incorporated in a wide range of industries, and it has allowed for improvements in work productivity and expansion of related services by comprehensively managing and securing connection regarding configuration information in the defense field. Implementations include acquisition of configuration related information and reinforcement of BOM-oriented configuration management function, securing compatibility among 3D drawings of different agencies, improvement of drawing and document management functions, comprehensive systematic configuration management focused on product structure, strengthened configuration control functions, a management system according to the work flow and life cycle functions, an integrated configuration management system of 3D model CAD resources and an enhanced management system. This paper covers a case study reviewing the implementation of a PLM-based configuration management information system and its results, so that the information can be made available to other agencies and companies seeking to apply PLM in their organizations.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제12권4호
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• pp.1899-1911
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• 2018

In this work, we propose a concurrency control scheme in object-oriented database (OODB). Since an OODB provides complex modeling power than the conventional relational databases, a concurrency control technique in OODB is also rather complicated and has influence on the overall performance. Thus, it is very important to develop a concurrency control technique with less overhead. The proposed scheme deals with class hierarchy that is a key concept in OODBs. The proposed scheme is developed on implicit locking scheme. Also, the proposed scheme is designed using data access frequency in order to reduce locking overhead than implicit locking. It means that, if access frequency information is not available, the proposed scheme works just like the existing implicit locking, In our work, the correctness of the proposed scheme is proved. The performance is analyzed depending on access types. Also, it is proved that our scheme performs works much better than the implicit locking does.

• 보존과학연구
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• 통권31호
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• pp.173-202
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• 2010

Within the framework of the Mongolian-Korean Joint Project for "Research and Preservation of Cultural Heritage", I enrolled in 3 months training course from February to May 2010 at the Metal laboratory of Conservation Science Division in National Research Institute of Cultural Heritage, Korea. Some metal artifacts, which are preserved in Institute of Archaeology, Mongolian Academy of Sciences, were brought and restored there. These chosen findings were found at Gobi and mountainous region of Mongolia, preserved under the different circumstances and dated back to Middle Age from Bronze Age. At the Metal laboratory of the NRICH, the conservation work was carried out for three months on 15 metal objects, including arrowhead, stirrup, caltrop, axe, knife, ring and so on, which were found at Khugshin Teel's ruin of Khairkhandulaan soum of Uvurkhangai province, Ungut of Altanbulag soum of Tuv province, Baruun Naran and Ukhaa khudag of Khankhongor and Tsogttsetsii soums of Umnugobi province. The report of the result of this conservation work is available here.

• 대한인간공학회지
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• 제30권4호
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• pp.517-523
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• 2011

Objective: The purpose were understanding the epidemiological characteristics of work related injuries of the farmer and establishing injury prevention and control activity. Background: Agriculture is one of the most hazardous industry and job in Korea. Method: We reviewed previous reports regarding the agricultural injury, injury prevention and control. Results: In the agricultural total injury, there were 45,342 hospitalized injury to farmers, injury rate was 35.8/1,000 farmers/years. Of these injuries, 52.6 percent were classed as work related injury. The farm-related injury rate was 17.5/1,000 farmers/years by analysis of Safety Aid System of Farm Workers. There were 2.4 times as incidence rate for farmers compared to non-farmers. Conclusion: Several strategies are available for injury prevention and control. They are as follows; social concern, survey of farm related injury, injury prevention, injury surveillance system and injury compensation.

• Journal of Electrical Engineering and Technology
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• 제8권5호
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• pp.1049-1055
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• 2013

DC motors are widely used in industries like cement, paper manufacturing, etc., even today. Early fault identification in dc motors significantly improves its life time and reduces power consumption. Many conventional and soft computing techniques for fault identification in DC motors including a recent work using model based analysis with the help of fuzzy logic are available in literature. In this paper fuzzy logic and norm based wavelet analysis of startup transient current are proposed to identify and quantify the armature winding fault and bearing fault in DC motors, respectively. Results obtained by simulation using Matlab and Simulink are presented in this paper to validate the proposed work.

• 수산해양기술연구
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• 제53권1호
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• pp.67-76
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• 2017

This study carried out and analyzed survey data on captains and mates of Korean coastal large trawlers in order to examine factors affecting body abnormalities and fatigue on bridge teams from work and environment at bridges of trawlers. The summarized result may be summed up as follows: multiple regression analysis with body pain and fatigue as dependent variables yields t-values of -2.559 (p<0.05) and -3.928 (p<0.05) respectively. From the result, environment at bridges (views, spaces and exhaust) were negative factors in affecting bridge workers' pain and fatigue. Thus, it is determined to secure available spaces to improve the workers' views through windows in front of, besides and rear bridge and create more pleasant atmospheric environment at bridge.

• 조명전기설비학회논문지
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• 제27권6호
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• pp.1-8
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• 2013

In this paper, we proposed a smart lighting management system controls the lighting efficiently to reduce energy consumption while satisfying user's lighting requirements. The proposed system considers the available daylight intensity and indoor light source to satisfy the lighting requirements of each user according to the work environment. In addition, for user convenience, we have developed different user interfaces for lighting control including local interface, and remote interface through internet or Bluetooth for personal computer as well as smart phones. The proposed system satisfies the lighting requirements of each user according to the corresponding work environment. The proposed smart lighting management system utilizes the lighting energy efficiently, and can be considered a significant contribution towards future green buildings.