• Journal of the Korea Safety Management & Science
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• v.8 no.4
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• pp.119-127
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• 2006

This paper deals with the middleware and S/W development of real time automatic attendance check management system using ubiquitous 900Mhz RFID(Radio Frequency Identification). This system supports the real time automatic attendance check and necessary data processing in class management. We expect to decrease the effort for class management and to upgrade the status of real time management of class.

• Journal of the Korean Home Economics Association
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• v.32 no.1
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• pp.47-58
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• 1994

The purpose of this study were to investigate the independant influence of variable related to the managerial satisfaction and casual relation between variables. For this purposes the data were collected through the questionnaire whose respondent were 448 housewives. The major results of this study were as follows; 1. The variables influenced independently to the managerial satisfaction were wife's age income perceived time pressure time planning time management strategies. 2. Among all varialbles affecting the managerial satisfaction income time planning and time management strategies had direct effect. And household size employment status and educational level had indirect effect.

• Proceedings of the IEEK Conference
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• 2003.07a
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• pp.169-173
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• 2003

In this paper, we analyze a time-based update method in location management and calculate the optimal time-interval. We obtain the probability that an MT is j rings away from the center cell. And using these values, an exact analysis is made for the time-based location management cost. From the result, when the time-based method is applied to location update, we can get the optimal time-interval which minimizes the location management cost.

• Journal of the Korea Society for Simulation
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• v.17 no.1
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• pp.43-52
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• 2008

The High Level Architecture(HLA) is the IEEE 1516 standard for interoperation between heterogeneous simulators which are developed with different languages and platforms. Run-Time Infrastructure(RTI) is a software which implements the HLA Interface Specification. With the development of time management service of RTI, it is necessary to consider an efficient design approach and an algorithm of Greatest Available Logical Time(GALT) computation. However, many time management services of existing RTIs have difficulty in modification and extension. Although some RTIs avoid this difficulty through modular design, they comply with not IEEE 1516 HLA/RTI but HLA 1.3. In addition, a lot of RTIs made use of well-known Mattern's algorithm for GALT computation. However, Mattern's algorithm has a few limitations for applying to IEEE 1516 HLA/RTI. This paper proposes a modular design and an implementation of time management service for IEEE 1516 HLA/RTI. We divided th time management service module into two sub-modules: a TIME module and a GALT module and used Mattern's algorithm improved for IEEE 1516 HLARTI. The paper also contains several experimental results in order to evaluate our time management service module.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2009.05b
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• pp.163-166
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• 2009

All sorts of technique for schedule progress management is being developed recently, These can change and develop the abstractive concept model to a detailed model that describes the visual 3D image about a schedule plan. but, this technique is troublesome, because this requires the handwork by means of connection between 3D-CAD and scheduling Program. In this study, the process of real-time schedule progress control system using the integrated database by 3D-CAD object information system and schedule module is presented. This study present the process of a schedule progress management using UML, and the process of real-time schedule progress management using RFID system. Through this study, we want to realize the rapid generation of estimated schedule information and to simulate and analyze actual schedule information by real-time.

• Journal of the Korean Society of Food Culture
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• v.11 no.5
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• pp.673-681
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• 1996

The purposes of this study were to: a) investigate the percentage distribution and the time spent of dietetic activities and b) estimate dietitian's staffing needs in employee foodservices. In 6 employee foodservices, the dietetic activities were analyzed by work sampling methodology. The results of this study were as follows: 1. The percentage distributions of dietetic activities, delay and non-dietetic activities were 79.06, 20.39, and 1.55%, respectively; 2. The major activities of dietitians in employee foodservice were production management 21.00%, purchasing management 16.73%, record keepig 14.40%, and menu management 6.30%, 3. The total labor time per week was 3,310 min (55.16 hr) and specially the time spent on 13 dietetic activities was 2,626 min (43.77 hr). 4. The time spent per week on major activities of dietitians such as production management, purchasing management record keeping, and menu management were 693.93, 554.83, 483.99, and 205.22 min, respectively.

• Journal of Family Resource Management and Policy Review
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• v.10 no.4
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• pp.109-124
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• 2006

The purpose of this ethnography is to describe and analyse the Korean full-time housewives' everyday domestic cares. For this purpose. The 11 full-time housewives in their thirties and forties from the middle class were interviewed with an unstructured questionnaire. The findings are as follows: The full-time housewives interpret their domestic cares as including housework, financial management and consumption behavior. They have heavy responsibility to fulfil the routine housework, squeeze their financial resources and balance their family consumption and their own consumption. So, their every day lift has its own uniqueness different from their counter partners'- husband's and employed married woman's. But even among full-time housewives, there are many differences in all these three activities of domestic cares.

• Journal of the Korea Safety Management & Science
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• v.2 no.4
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• pp.1-8
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• 2000

Equipment and machine of industrial plant are give effect to mechanical-stress of many working-stop or long time operating. Therefore, to be old and decrepit of every king of equipment. As long time operating equipment period into increase conservation and of repair equipment time is efficacious necessity of utility factor gradually that of productivity of diminution and complete equipment expense of increase. Conservation at special skill working and necessity is that will effectually and complete a period prevention management diagnosis can conservation point at issues at in advance.

• Journal of the Korea Safety Management & Science
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• v.10 no.1
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• pp.155-166
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• 2008

During last two decades the transportation system has developed into very intelligent system with GIS, GPS and ITS. The practical transportation management system provides real time response module to manage the customer's order. We have surveyed research papers on the real time vehicle routing problem in last two decades to figure out the dynamic vehicle routing problem. The papers are classified by basic routing algorithms and by managing the dynamic events which are the order management, the routing re-optimization, the routing post-optimization and the waiting strategy.

• Journal of the Korean Operations Research and Management Science Society
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• v.41 no.3
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• pp.37-43
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• 2016

This note discusses the inter-loss time ofan M/G/1/1 queuing system. The inter-loss time is defined as the time duration between two consecutive losses of arriving customers. In this study, we present the explicit Laplace transform of the inter-loss time distribution of an M/G/1/1 queuing system.