• International Journal of Contents
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• v.3 no.1
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• pp.34-38
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• 2007

Load redistribution is a critical resource in computer system. In sender-initiated load redistribution algorithms, the sender continues to send unnecessary request messages for load transfer until a receiver is found while the system load is heavy. These unnecessary request messages result in inefficient communications, low CPU utilization, and low system throughput in distributed systems. To solve these problems, we propose a genetic algorithm based approach for improved sender-initiated load redistribution in distributed systems. Compared with the conventional sender-initiated algorithms, the proposed algorithm decreases the response time and task processing time.

• Proceedings of the KSR Conference
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• 2003.05a
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• pp.480-486
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• 2003

This paper proposes the connection without cables among display devices in a train using piconet of the Bluetooth. Nowadays, each train has a number of the display devices that are connected with many cables to lead the passengers, so it has the waste of resource and factor of fault. This paper proposes the improvement schemes of those problems in a train using piconet of the bluetooth with low cost, low power, and high security.

• Journal of Korean Library and Information Science Society
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• v.22
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• pp.205-244
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• 1995

Originally the concept of the traditional resource sharing has been discussed in the context of bibliographic materials, and has been labor-intensive and high-cost activities. The technology has had a great impact on such pattern of the resource sharing, and has expanded the limited scope of the traditional concept into the sharing of library information in the levels of local, regional and national systems, and expertise, materials, facilities, equipments and personnels of the library system. While the traditional circulation service as a basic method to share library materials by users can provide the resource to a single person at a time, the electronic resource can be shared, by multi-users at a time anytime anywhere. The maximization of the electronic resource sharing requires that publishing process should be fundamentally changed and articles, books, chapters, speech manuscripts, music scores, maps, sound, and other formats of materials should be prepared in machine readable format. This study examined the positive effects of the technology on the resource sharing, but not investigate the concrete and complex problems as to the cost, guidelines, detailed procedures, design details, and intellectual properties and protection involved in the resource sharing. Some findings extracted from the study can be summarized as follows; (1) ILL will lose its meaning as a method to share the materials if they are all in the electronic format and the phrase 'networked information resource' becomes omnipresent. (2) The technology keeps on changing the concept of resource sharing. Today, the scope of resource sharing not only encompasses the sharing of the primary and secondary materials but also the sharing of the processings(eg. cataloging), expertise, user education, special facilities, and the integrated automated library systems. (3) The sharing of the networked resource will be a method to provide better services for library users in the low cost. (4) The a n.0, pplication of the technology to the resource sharing should be focus on the method which allows an end-users to do the direct access to the needed materials, and to be delivered the primary document as soon as possible.

• Journal of Information Processing Systems
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• v.19 no.4
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• pp.450-464
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• 2023

To address the problems of large system overhead and low timeliness when dealing with task scheduling in mobile edge cloud computing, a task scheduling and resource management strategy for edge cloud computing based on an improved genetic algorithm was proposed. First, a user task scheduling system model based on edge cloud computing was constructed using the Shannon theorem, including calculation, communication, and network models. In addition, a multi-objective optimization model, including delay and energy consumption, was constructed to minimize the sum of two weights. Finally, the selection, crossover, and mutation operations of the genetic algorithm were improved using the best reservation selection algorithm and normal distribution crossover operator. Furthermore, an improved legacy algorithm was selected to deal with the multi-objective problem and acquire the optimal solution, that is, the best computing task scheduling scheme. The experimental analysis of the proposed strategy based on the MATLAB simulation platform shows that its energy loss does not exceed 50 J, and the time delay is 23.2 ms, which are better than those of other comparison strategies.

• Korean Journal of Rural Living Science
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• v.6 no.2
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• pp.151-161
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• 1995

The objective of this study is to analyse consumption problems of the rural poor households. This is a succeeding work to the previous report on economic resource problems. Data from 154 rural poor house holds and 290 rural non-poor households were analysed to comprehend their consumption practices, financial management ability, consumer competence of homemakers, and market environments. The major findings and conclusions are as follows : 1. The rural poor households had deficit of 30, 000 won per month. They perceived relative importance of the educational expenses and food expenses and heavier pressure of educational expenses and light and water expenses than other items. 2. The rural poor households evaluated their financial management ability average like non-poor households but their level of consumer competence was lower than other households. This means their consumer efficiency is relatively low. 3. The rural poor households had similar grade of market environments to non-poor households. This is significantly different from urban households.

• Journal of the Korean Society for Geothermal and Hydrothermal Energy
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• v.5 no.2
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• pp.7-12
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• 2009

The fossil fuel has been used as the main resource of national development. Through this process, many environmental problems have happened. For example, we depend 97% energy on import for national spending and the exhaustion of the fossil fuel is at an important issue nowadays. So more people are interested in renewable energy which is more environmental and never be gone. However, the supply doesn't go on smoothly because of some problems such as capital condition, the limitation of geographical features and low technology, etc. In conclusion I'd like to check some policies and support systems about renewable energy first, and then to find problems for adapting other area through the comparison in this thesis.

• Proceedings of the IEEK Conference
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• summer
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• pp.387-390
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• 2004

In this paper, we design and implement practical application service using VoiceXML. And we suggest new solutions of problems can be occurred when implementing a new systems using VoiceXML, based on the fact. Up to now, speech related services were developed using API (Application Program Interface) and programming languages, which methods depend on system architectures. It thus appears that reuse of contents and resource was very difficult. To solve these problems, nowadays, companies develop their applications using VoiceXML. Advantages of using VoiceXML when developing services are as follows. First, we can use web developing technologies and technologies for transmitting web contents. And, we can save labors for low level programming like C language or Assembler language. And we can save labors for managing resources, too. As the result of these advantages, we can reduce developing hours of applications services and we can solve problem of compatibility between systems. But, there's poor grip of actual problems can be occurred when implementing their own services using VoiceXML. To overcome these problems, we implemented interactive stock trading system using VoiceXML and concentrated our effort to find out problems when using VoiceXML. And then, we proposed solutions to these problems and analyzed strong points and weak points of suggested system.

• The Journal of Korean Association of Computer Education
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• v.11 no.5
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• pp.67-76
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• 2008

Grid computing has a large scale virtual computing environment that enables a collaborative processing through sharing resources of geographically distributed organizations. In recent year, the development of wireless networks and mobile devices enables mobile devices to consider as a resource of the grids. However, there are some problems such as low performance of processors, small capacity of storages, limited capacity of battery, and low bandwidth. In this paper, to overcome these limitations occurred in mobile grid environments, we proposed a proxy-based mobile grid system. Our proposed system enables mobile devices to play roles as a resource consumer and a resource provider and to collaborate with wired grids through a mobile router. Also, we propose an adaptive job scheduling scheme to cope with context changes of mobile devices and compare our scheduling scheme with other scheduling schemes using a simulation tool, SimGrid, to verify the validity of our job scheduling scheme.

• Journal of Family Resource Management and Policy Review
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• v.13 no.2
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• pp.85-105
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• 2009

The purpose of this study is to compare the laws and policies relating to work-family balance with foreign cases, and to analyse the problems in implementing those laws and policies. For these purpose, this study compares family leave policies, working hams policies, public care policies in other countries. And these laws in Korea are shown. This study also analyse the policies for work-family balance in labor policy, family policy, gender policy and saeromaji plan. The results are as follows; policies for work-family balance are limited to child care and family leave. Laws for family leave are various and proper. But implementing rate of policy goal is low and a few people can benefit by those laws and policies. So, wide-range policies for work-family balance which all the families can benefit are needed.

• Journal of Family Resource Management and Policy Review
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• v.5 no.2
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• pp.1-12
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• 2001

One of the fastest-growing job categories for women in both the developed and the developing nations of the world is that of self-employment. In 1990 women accounted for 29% of all self employed workers. In Korea, self-employed women including unpaid family workers accounted for 40.4% of all female workers. They are in economically low status and have heavy workload. So, this study examines the real state and problems of self-employed woman. For this purpose, the transition of the number of self-employed women is nationally compared. And the statistical data and time use data on them and role conflict due to paid work and household work are presented. In the future society, self-employment will be a good alternative to self-realization and career for women. So, for self-employed women, following education is needed according to stages of business and characteristics of managers; entrepreneurship, management, and balance of work and family.