• Journal of the Korea Society for Simulation
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• v.16 no.2
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• pp.9-15
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• 2007

As the Internet grows and the mass multimedia data become popular, the storage system migrates from DAS, where the storage and the server are directly connected, to SAN and NAS. SAN connects the storages with a separate network, and NAS provides only file services, connects the storages with IP network. However, SAN and NAS can not fulfill the needs for companies if used separately, thus are asked to be integrated. In this research, we propose an efficient data sharing method which employees the concept of GMC, Croup Master Cache for the integrated environment of SAN and NAS. GMC is based on MCI, Metadata server and Cluster system Integration, but tries to solve the high expansion cost problem with MCI. We introduce the basic concept of GMC, compare the performance of GMC with that of MCI using computer simulation.

• Journal of Soil and Groundwater Environment
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• v.15 no.6
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• pp.122-127
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• 2010

Constructing the national inventory that can be used as a tool to identify and assess existing or potential contamination is necessary for efficiently managing the soil and groundwater contamination. In order to start this construction, the first step is how we define and classify potential contamination sources of soil and groundwater. After selecting the basic classification model of contamination sources from developed countries, we suggested the classification and list of the potential contamination sources of soil and groundwater which are appropriate for specific conditions of South Korea. In addition, we investigated several databases to confirm the existence of available data sources and then examined established attribute data through chemical accident response information system (CARIS) and water information system (WIS) in National Institute of Environmental Research and mine geographic information system (MGIS) in Mine Reclamation Corporation. All sorts of attribute data in the existing databases can be utilized as significant assessment factors for determining the management priority of potential contamination sources in the future. Therefore, it is required the expanded investigation of additional database sources and the continual modification so that the classification system of potential contamination sources can be improved.

• Journal of Soil and Groundwater Environment
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• v.15 no.6
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• pp.64-71
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• 2010

National inventory of soil and groundwater contamination is an efficient decision-making tool to identify and manage existing or potential contaminated sources and contaminants. It has been used as basic data for establishing the scheme of regulations and remediation plans of soil and groundwater contamination in developed countries. This study examined classification of existing or potential sources of soil and groundwater contamination from various countries to suggest implications that required for development of classification of soil and groundwater contamination sources in Korea. Each country has provided a list of currently or potentially contaminating activities or landuses and identified some of the potential contaminants related to those contamination sources. Consideration of sources which had not been mentioned or regarded as contamination sources before was suggested for Korea situation. In addition, it is necessary to compile a list of existing data and information as much as possible to develop a detailed and practical list of various contamination sources.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.1
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• pp.343-348
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• 2006

Number of researches on efficient terminal operation system applying RFID(Radio Frequency Identification) are on progress. However, RFID has limitations on tracking and providing accurate positions of containers. In this paper, to enhance the performance of the integrated terminal operation system, an efficient loading management of yard is proposed by applying RFID-based RTLS(Real Time Locating System) that provides real-time accurate positions of containers. We found that a group-based sequence system is more efficient than the existing individual sequence number system in the container yard. In the group-based sequence system, the containers in the same group should have similar characteristics such as port of destination(POD), size, weight, etc. In order to run this system, we have proposed the parameters to the unspecified N bytes of RFID tag which are specified in ISO 18000-7. And, this paper proposed a development of integrated operation system of container terminal using RFID for reducing the ship turnaround time in ubiquitous port environment.

• ETRI Journal
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• v.45 no.1
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• pp.163-170
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• 2023

We report an electroabsorption modulator (EAM)-integrated distributed Bragg reflector laser diode (DBR-LD) capable of supporting a high data rate and a wide wavelength tuning. The DBR-LD contains two tuning elements, plasma and heater tunings, both of which are implemented in the DBR section, which have blue-shift and red-shift in the Bragg wavelength through a current injection, respectively. The light created from the DBR-LD is intensity-modulated through the EAM voltage, which is integrated monolithically with the DBRLD using a butt-joint coupling method. The fabricated chip shows a threshold current of approximately 8 mA, tuning range of greater than 30 nm, and static extinction ratio of higher than 20 dB while maintaining a side mode suppression ratio of greater than 40 dB under a window of 1550 nm. To evaluate its modulation properties, the chip was bonded onto a mount including a radiofrequency line and a load resistor showing clear eye openings at data rates of 25 Gb/s nonreturn-to-zero and 50 Gb/s pulse amplitude modulation 4-level, respectively.

• Journal of the Korean Society of Safety
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• v.27 no.2
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• pp.34-41
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• 2012

In this study, it has been proposed the new type of temporary bridge which is structural performance maximization to integrated cover plate and girder as well as roll of lining board. Of all temporary bridge integrated cover plate and main girder in the form of a new type of structure is advantageous for the judge, but to the field of transport difficulties and challenges due to high altitude operations to take advantage of this challenge and deliver a structured, easy transport, and the synthesis of lining board possible was proposed. Lining board proposed in this study through experimental synthesis and analysis of the factors that influence the effectiveness of the construction and economic development in the construction method was superior, compared to the conventional lining board.

• Journal of Korean Academy of Rural Health Nursing
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• v.17 no.1
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• pp.23-33
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• 2022

Purpose: This study was conducted to identify the effects of an integrated health improvement program for the elderly based on primary health care posts during the COVID-19 pandemic. Methods: A single group pretest-posttest design (n=16) was employed to evaluate an integrated health improvement program that took place twice a week for 11 weeks. The program was conducted in a small group of no more than 10 people in compliance with the guidelines to prevent COVID-19 infection. The program consisted of various contents such as making letters using blocks, health education, and talking about one's memories. The data were analyzed using the Wilcoxon signed rank test. Results: Following the program, social support (Z=-3.50, p<.001) and quality of life of the elderly (Z=-3.74, p<.001) were significantly improved among depression, social support and quality of life. Conclusion: The integrated health improvement program based on primary health care posts, considered in this study, was useful to improve the social support and quality of life of the elderly in the community, and needs to be applied to a larger number of elderly people throughout the community.

• Research in Community and Public Health Nursing
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• v.26 no.2
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• pp.69-78
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• 2015

Purpose: This study was conducted in order to investigate changes in the physical, psychosocial and spiritual health of people with mental disorder in community participating in the Integrated Health Care Program (IHCP). Methods: This study applied the non-equivalent control group pretest-posttest quasi-experimental design. The participants were 37 chronic psychiatric patients who had been clinically diagnosed with mental disorder and visiting a mental rehabilitation center located in S City (17 in the experimental group, and 20 in the control group). The experimental group participated in the IHCP consisting of 24 sessions for eight weeks. Results: After the intervention, only the participants in the experimental group reported significant improvement in physical (body mass, triglyceride), psychosocial (mental symptoms, depression, self-esteem, ability of problem solving), and spiritual wellbeing when compared with those in the control group. Conclusion: These results indicate that IHCP is effective in improving the physical, psychosocial, and spiritual wellbeing of people with mental disorder. Therefore, IHCP developed in this study is considered a useful nursing intervention for raising the comprehensive health level of people with mental disorder in community.

• International Journal of Advanced Culture Technology
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• v.11 no.2
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• pp.118-124
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• 2023

With the acceleration of globalization and economic integration, multinational enterprises are becoming more and more important in the international market, and Sinar Mas Group, one of the largest integrated companies in Indonesia, has become one of the most influential overseas Chinese companies in Indonesia due to its outstanding performance and leadership position. This study aims to analyze the success factors of Sinar Mas Group and reveal its competitive advantages in the global market. Founded in 1962, Sinar Mas Group is an integrated multinational company headquartered in Indonesia, with significant presence in various fields such as paper, palm oil, real estate, finance and energy, with operations in Indonesia and many other countries and regions around the world. This study investigates the aspects of corporate history, corporate status, and corporate competitiveness. In addition, this study analyzes the reasons for Sinar Mas Group's success using the SWOT model. By comprehensively analyzing these key factors, this paper provides readers with an insight into the vitality and remarkable achievements of this Indonesian corporate giant in the global market. This study will help Korea enter Indonesia and contribute to Indonesian business research.

• Journal of Home Health Care Nursing
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• v.24 no.1
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• pp.14-22
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• 2017

Purpose: To study aimed to examine the impact of the Nursing and Care=giving Integrated Service on nursing work performance, nurse' job satisfaction, and patient safety. Methods: A total of 66 nurses were selected as participants, comprising 30 nurses working in Nursing and Care=giving Integrated Service hospital ward, and 33 nurses working in a general hospital ward with a similar patient and disease group and distributed moderately. For data analysis, t-tests, ANOVA, and $X^2$ tests were conducted. Results: Nursing work performance in the Nursing and Care=giving Integrated Service ward was higher than that in the general hospital ward, but this difference was not statistically significant. Conversely, job satisfaction was lower among nurses in the Nursing and Care=giving Integrated Service ward, although again the difference was not significant. However, the Nursing and Care=giving Integrated Service ward had a significantly lower rate of safety-related accidents in patients compared to the general hospital ward. Conclusion: In order to expand and improve patient safety and other aspects of the Nursing and Care=giving Integrated Service, there is a need to establish a mediation strategy for increasing nurses' work performance and job satisfaction.