• Journal of Korean Institute of Industrial Engineers
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• v.12 no.1
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• pp.63-71
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• 1986

In the organization with a hierarchical network queue structure a production function is derived whose input factors are the numbers of servers at nodes and output is the number of served customers. Its useful properties are investigated. Using this production function, the contributions of servers to the number of served customers are studied. Also given an expected waiting time in the system for each customer, the optimal numbers of servers at nodes are obtained minimizing a cost function.

• Journal of the Korean housing association
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• v.10 no.2
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• pp.195-202
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• 1999

The purpose of this study is to analyze the characteristics and types of contemporary houses. This study deals with single-unit Korean houses designed by architects, which are included in architectural periodicals and books published since 1990. This study uses three analysis criteria: general characteristics of the house, hierarchical order of the plan and planning elements of houses. These criteria are derived from preceding studies and typological and topographical theories on houses. As the results of this study, the types of contemporary houses's plan are obtained from the perspective of plan's shape, hierarchical space relationship and spatial organization. Ten types corresponding to the plan shape are proposed. And eleven types of hierarchical space relationship are made and six spatial organization plan types are shown in this paper.

• Journal of KIISE:Computer Systems and Theory
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• v.35 no.5
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• pp.187-198
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• 2008

This paper develops a framework for efficient resource management within the grid service environment. Resource management is the core element of the grid service; therefore, GridRMF(Grid Resource Management Framework) is modeled and developed in order to respond to such variable characteristics of resources as accordingly as possible. GridRMF uses the participation level of grid resource as a basis of its hierarchical management. This hierarchical management divides managing domains into two parts: VMS(Virtual Organization Management System) for virtual organization management and RMS(Resource Management System) for metadata management. VMS mediates resources according to optimal virtual organization selection mechanism, and responds to malfunctions of the virtual organization by LRM(Local Resource Manager) automatic recovery mechanism. RMS, on the other hand, responds to load balance and fault by applying resource status monitoring information into adaptive performance-based task allocation algorithm.

• Korean Journal of Child Studies
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• v.34 no.5
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• pp.115-126
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• 2013

The purpose of this study was to investigate the relationship between self-differentiation and covert narcissism with organization citizenship behavior on the part of teachers in childcare centers. The subjects consisted of 522 teachers who worked in childcare centers in Daegu and Gyeongbuk Province. The data collected were analyzed by means of Pearson's correlation, and hierarchical regression, using SPSS Win 19.0. The results were as follows. (1) Self-differentiation was positively associated with organization citizenship behavior. However when covert narcissism was operating as control, self-differentiation was not associated with organization citizenship behavior. (2) Covert narcissism was negatively associated with organization citizenship behavior. (3) Between both covert narcissism and self-differentiation, only covert narcissism was associated with organization citizenship behavior. (4) There were observable interactional effects between self-differentiation and covert narcissism to organization citizenship behavior.

• Journal of the Korean Operations Research and Management Science Society
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• v.16 no.2
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• pp.125-125
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• 1991

This paper presents a framework for the hierarchical PPC(Production Planning and Control) in make-to-order environment with job shop. The characteristics of the environment are described as : 1) project with non-repetitive and individual production, 2) short delivery date, 3) process layout with large scales manufacturing. 4) job shops. The PPC in a make-to-order typically are organized along hierarchical fashions. A model is proposed for the hierarchical job shop scheduling based on new concepts of production system, work and worker organization. Then, a new integrated hierarchical framework is also developed for the PPC based on concepts of the proposed job shops scheduling model. Finally, the proposed framework has been implemented in the Electric Motor Manufacturing and the results showed good performance.

• Korean Management Science Review
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• v.16 no.2
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• pp.125-135
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• 1999

This paper presents a framework for the hierarchical PPC(Production Planning and Control) in make-to-order environment with job shop. The characteristics of the environment are described as : 1) project with non-repetitive and individual production, 2) short delivery date, 3) process layout with large scales manufacturing. 4) job shops. The PPC in a make-to-order typically are organized along hierarchical fashions. A model is proposed for the hierarchical job shop scheduling based on new concepts of production system, work and worker organization. Then, a new integrated hierarchical framework is also developed for the PPC based on concepts of the proposed job shops scheduling model. Finally, the proposed framework has been implemented in the Electric Motor Manufacturing and the results showed good performance.

• The Korean Journal of Health Service Management
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• v.9 no.1
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• pp.95-107
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• 2015

The purpose of this study is to analyze the characteristics of hospital organization structure, organization culture, organization conflict and the interrelation of influential factor in organization conflict. The data for this study were collected through a self-administered survey with a structured delivered to 755 subjects including several nursing staff members, administration staff members and medical technicians at six hospitals. The structural equation model was used to examine the relation of organization structure, organization culture and organization conflict. The results of the analysis in this study were as follows. First, organization structure had a positive influence on organization conflict, especially in terms of complexity and centralization. But, formalization had a negative influence on organization conflict. Second, organization culture had a positive influence on organization conflict, especially in terms of group culture, developmental culture, and hierarchical culture. But, group culture had a negative influence on organization conflict. Third, organization structure had positive influences, especially on organization culture complexity, centralization, and formalization. But, centralization had negative influences too.

• Korean Institute of Interior Design Journal
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• no.34
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• pp.96-105
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• 2002

Elderly care services are health, mental health, social health, and residential services provided to temporarily or chronically disabled older persons over an extended period of time with a goal of enabling them to function as independently as possible. And elderly care facilities such as nursing homes are places in which elderly care services have to be delivered effectively. It is, therefore, desirable to compose the space of elderly care facilities to meet the mental and physical abilities of frail elder people. This study has proposed the hierarchical space organization of elderly care facilities with an aim to fulfill the goals of them. Frail older people in hierarchically designed homes are anticipated to use the inner and outer spaces of care facilities as independently as possible in accordance with their physical and mental abilities.

• Proceedings of the Korean Society for Language and Information Conference
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• 2007.11a
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• pp.321-329
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• 2007

This paper reports on the application of network analysis approaches to investigate the characteristics of graph representations of Japanese word associations. Two semantic networks are constructed from two separate Japanese word association databases. The basic statistical features of the networks indicate that they have scale-free and small-world properties and that they exhibit hierarchical organization. A graph clustering method is also applied to the networks with the objective of generating hierarchical structures within the semantic networks. The method is shown to be an efficient tool for analyzing large-scale structures within corpora. As a utilization of the network clustering results, we briefly introduce two web-based applications: the first is a search system that highlights various possible relations between words according to association type, while the second is to present the hierarchical architecture of a semantic network. The systems realize dynamic representations of network structures based on the relationships between words and concepts.

• Proceedings of the KOSOMBE Conference
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• v.1991 no.11
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• pp.48-53
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• 1991

The discrete cosine transform (DCT)-based progressive and hierarchical coding schemes developed by the International Standardization Organization (ISO) Joint Photographic Experts Groups (JPEG) are implemented and evaluated for the application of medical image communication. For a series of head sections of magnetic resonance images, a compression ratio of about 10 is obtained by the algorithm without noticeable image degradation.