• Journal of Communications and Networks
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• v.2 no.1
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• pp.5-17
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• 2000

cdma2000 offers several enhancement as compared to TIA/EIA-95, although it remains fully compatible with TIA/EIA-95 systems and allows for a smooth migration from one to the other-Major new capability include:1)connectivity to GSM-MAP in addition to IP and IS-41 networks; 2) new layering with new LAC and MAC architectures for improved service multiplexing and QoS management and efficient use of radio resource ;3) new bands and band widths of operation in support of various operator need and constraints, as well as desire for a smooth and progressive migration to cdma 2000; and 4) flexible channel structure in support of multiple services with various QoS and variable transmission rates at up to 1 Mbps per channel and 2 Mbps per user. Given the phenomenal success of wireless services and desire for higher rate wireless services. improved spectrum efficiency was a major design goal in the elaboration of cdma2000. Major capacity enhancing features include; 1) turbo coding for data transmission: 2)fast forward link power control :3) forward link transmit diversity; 4) support of directive antenna transmission techniques; 5) coherent reverse link structure; and 6) enhanced access channel operation. As users increasingly rely on their cell phone at work and at home for voice and data exchange, the stand-by time and operation-time are essential parameters that can influence customer's satisfaction and service utilization. Another major goal of cdma2000 was therefore to enable manufacturers to further optimize power utilization in the terminal. Major battery life enhancing features include; 1) improved reverse link performance (i.e., reduced transmit power per information bit; 2) new common channel structure and operation ;3) quick paging channel operation; 4) reverse link gated transmission ; and 5) new MAC stated for efficient and ubiquitous idle time idle time operation. this article provides additional details on those enhancements. The intent is not to duplicate the detailed cdma2000 radio access network specification, but rather to provide some background on the new features of cdma2000 and on the qualitative improvements as compared to the TIA/EIA-95 based systems. The article is focused on the physical layer structure and associated procedures. It therefore does not cover the MAC, LAC, radio resource management [1], or any other signaling protocols in any detail. We assume some familiarity with the basic CDMA concepts used in TIA/EIA-95.

• Journal of Family Resource Management and Policy Review
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• v.18 no.1
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• pp.1-28
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• 2014

The purpose of this study is to suggest how the first birthday rite, a practice in Korean culture, has changed over the time. A survey of 250 mothers was undertaken from October 11th to November 6th, 2012. The research questions asked in this study are as follows. What general and expert views are held about the first birthday rite? What type of awareness and knowledge do mothers have about the first birthday rite? Is there any correlation between mothers' awareness and knowledge about first birthday rite? What is the importance of the components of the baby's first birthday rite and the importance of choosing first birthday rite goods? The data were analyzed using SPSS 17.0. Frequency, F-test, correlation were also employed. The results of this study are as follows: The first birthday rite shows a clear link to socializing. It is a family event, but is also seen as an opportunity to enhance relationships with relatives, colleagues, and friends. A banquet hall is chosen as preferred first birthday rite location, and participants are served a meal and receive gifts. The banquet information on first birthday rites was initially collected from the internet, blog cafes, and an experienced. However, it has become gradually more common to hire a consultant to organize the first birthday rite. Awareness of the first birthday rite is high, but knowledge is relatively low. In addition, there is a positive relationship between awareness and knowledge about the first birthday rite. When mothers are preparing for their baby's first birthday, they consider food for the guests' banquet, space and time. Finally, individual positive relationships were found between choosing first birthday rite goods and employee services, contract pricing for goods, and food for guests.

• Journal of Family Resource Management and Policy Review
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• v.21 no.1
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• pp.89-111
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• 2017

The purpose of this study was to examine the phenomenon of social participation among female baby boomers. The key research questions were asked in what kind of activities do female baby boomers engage as social participation? The in-depth interview was used with 11 female baby boomers who were born between 1955 to 1963. The interview text were analyzed by the qualitative study method. The findings are as follows. First, the most common type of social participation was having hobbies and leisure activities, and the other were participating in religious activities, learning activities, volunteer activities and on-line club activities. Second, social participation gave them meanings such as joy, satisfaction, and experiences of seeing the new world as well as opportunities to make up low sense of self-esteem formed in their young age. Third, they were considering it was time to change their social participation. The cases who were actively engaging in social participation considered old age as 'the process of reducing social participation'. Some other cases considered to 'share hobbies with spouse', and to 'achieve new goals and dreams'. The results showed that female baby boomers started their social participation in their middle ages when they became free from their children's education. The level of the involvement in social participation was reduced in their old age. Surprisingly, some interviewees planned to accomplish their dreams and goals that they haven't achieved yet. These differences among the cases could be attributed to the individual characteristics such as personality, birth order, economic and educational background, and to the social relationship.

• Journal of Family Resource Management and Policy Review
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• v.12 no.1
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• pp.21-39
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• 2008

The purpose of this study was to investigate service support programs for the work-family balance in the community. Service support programs in the community are at beginning stages of development, because it has taken about 10 years to put a self-governing system into practice in Korea. This study concentrates on service support programs developed by various service organizations in the city and does not include any rural districts. First, the developmental process of the work-family balance model and type of the service support program in the community were studied. Next, the situation of care service support was examined based on written articles. Finally, a few suggestions were made f3r work-family balance in the community. The developmental situation of work-flmily balance in Korea is in a stage which is shifting from the company-leading model to a family-company-community model. The most common type of service support program offered in the community until now has been the informal sector through relatives, neighbors or friends. However, service support programs, in the public sector by the government and in the voluntary sector by nonprofit organizations and corporations, has rapidly been growing and the number of services from each sector has also increased. Profit organizations in the private sector, such as medical and care service centers, are also now rapidly increasing. It appears that service support programs contributing to the work-family balance in the community come from a number of sectors, including public, voluntary, private and informal sectors, to suit consumer needs.

• The Journal of Fisheries Business Administration
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• v.47 no.3
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• pp.93-110
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• 2016

Most of the changes that make paradigm shift have been involved international level problems related to environment, resource and structure problems in these days. Resolving those common issues the United Nations Food and Agriculture Organization(UN FAO) has played most important role in fisheries with publishing the series of the technical guidelines for responsible fisheries papers. The guidelines for responsible fisheries have introduced for applying the concept of sustainable development with considering overall changes in fisheries domains. And also have objectives that establishing the discipline of fisheries worlds. Although these papers are remarkable, there is still few research or education contents of them in Korea. Fisheries business administration is a kind of social science that influenced by environmental, social changes so called paradigm shift. So one of the most important thing that has the education of sustainable development is accommodation or adaptation of them with grasping the phenomenon continuously. The aims of this study are exploring the FAO's the technical guidelines for responsible fisheries documents and contents of college's fisheries business administration and finding out the overall systematic topics and themes of fisheries business administration education. The result of this study shows that the contents of fisheries business administration did not including the concept of responsible fisheries even were out of date in using statistical data. And there is some missing issues that including fisheries policy, resource management, and related law should be enhanced. This study suggests the framework of fisheries business administration with comparing analysis on FAO's document and college's course of study in Korea. The proposed framework of major topics of fisheries business administration that still needed to be improved should be a milestone of understanding and debating the core factors of fisheries business administration education and research.

• Journal of Family Resource Management and Policy Review
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• v.20 no.2
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• pp.19-41
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• 2016

This study examines the human capital, economic capital, and psychological factors that influence social participation among the elderly in the future. The data, 'Survey on the Elderly in 2014', were collected from 'The Ministry of Health & Welfare' and the 'Korea Institute for Health and Social Affairs'. The samples included 10,279 elderly people who were over 65 years of age. Multiple regression analysis was used to analyze the research model. The findings are as follows. First, the highest participation awareness level of all was for the hobbies and leisure activities, and the lowest participation awareness level was for volunteer activities. Second, human capital factors such as age, education level, and health status, and economic capital factors such as household consumption expenditure and standard of living signigicant affected social participation awareness among the elderly. Psychological factors such as self-esteem, depression, and the subjective age of becoming elderly, also affected the social participation awareness. Third, awareness differed by sex. In particular, age and depression were restrictions of social participation awareness that were more common among elderly women than among elderly men, although single women were more likely to participate in religious, learning, and hobby and leisure activities. In contrast, chronic diseases and household consumption expenditures were more restrictive of social participation awareness among elderly men compared to elderly women. These results show that human capital, economic capital, and psychological factors heavily influence the social participation awareness of the elderly, although the degree of influence of these factors differs by sex.

• Journal of Information Management
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• v.38 no.2
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• pp.1-23
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• 2007

Korea, China and Japan are in great demand for each other’s science and technology information since they geographically lie adjacent and have common interest in a variety of science and technology fields. Yet, they have difficulties in obtaining the other two countries’ information due to the lack of an appropriate system to access the information and also to restrictions such as a language barrier. The purpose of this study is to suggest the ways of sharing science and technology information among Korea, Japan and China. It surveys the national science and technology information systems and policies of each country and proposes four stages of resource sharing.

• Korean Journal of Clinical Laboratory Science
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• v.54 no.3
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• pp.167-172
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• 2022

In clinical practice, the diagnosis of tuberculosis (TB) continues to be a challenge. The goal of this study was to evaluate the reliability and impact of adenosine deaminase (ADA) enzyme testing as a biochemical marker in the continued management of suspected tuberculosis in a limited resource setting hospital. The retrospective data were collected from 2018 to 2021 and comprised the results of all ADA test assays done in the laboratory. All types of body fluids received for ADA testing were analyzed. Over the course of two years, 1461 samples for ADA assay testing were received. The average age of the study population was 56.69±11.7 years, with males accounting for the majority of the subjects (55.72%). Pleural fluid (N=817, 55.92%) was the most common type of sample received for the ADA assay. 114 (13.95%) of the 817 pleural fluid samples were found to be positive. A survey was conducted to obtain physician's response regarding reliability on ADA testing. 100% of them reported the supportive role of ADA levels in the workup of patients with suspected tuberculosis. In a limited resource setting, the ADA test, in conjunction with clinical and other laboratory findings, can help physicians to initiate early treatment in hospitals for the benefit of patients.

• Journal of Digital Convergence
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• v.6 no.2
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• pp.117-125
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• 2008

High-volume web sites often use clusters of servers with load balancing as a way to increase the performance, scalability, and availability of the sites. Load balancing, usually performed by load balancer in front of such clusters, is a technique to spread workload between several computers or resources, in order to get optimal resource utilization or response time. In this paper we examine the performance for several configurations of cluster-based web servers using a simulation approach. We investigate two types of buffering scheme (common and local) for web clusters and three load balancing policies (uniformly random, round robin, and least queue first), using response time as a performance measure. We also examine two basic approaches of scaling web clusters: adding more servers of same type or upgrading the capacity of the servers in the clusters.

• Proceedings of the Korean Information Science Society Conference
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• 2007.06d
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• pp.338-343
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• 2007

WCDMA, WLAN, WiBro등과 같은 다양한 이기종 무선 네트워크들이 증가하면서 중첩된 네트워크가 발생하게 되어, 이기종망간의 vertical handover가 증가하게 되고 효율적인 Network 자원관리 필요성이 증가하였다. 이를 위해 특화된 CRRM을 활용한 중첩된 network들의 통합 자원 관리방안을 제안한다. 제안된 방안은 bandwidth와 사용자의 수를 고려하여 bandwidth를 adaptation 시키거나 forced vertical handover를 진행하여 자원을 관리하며, user는 별도의 handover discover 단계를 생략하고 vertical handover를 진행할 수 있으며, Multiple interface를 사용하여 MCoA를 등록하고 다양한 무선네트워크를 이용하여 데이터 전송이 가능해진다.