• Journal of the Korean Institute of Rural Architecture
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• v.5 no.3
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• pp.53-64
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• 2003

Recently the change of family environment has influence on the configuration of the family welfare unit at the social welfare center. And so the relation of space and function required its change. The essential role of social welfare center is family welfare, domiciliary and community care, community organization, social education etc. In this sence, this study explored the condition of space planning for the family welfare at the social welfare center. For this study, it was reviewed the role and function, the service program, the degree of unit activity importance, space satisfaction, the usage characteristics. In sum, the useful data were collected, analyzed, and synthesized through case study and could be used in the guidelines as reference information for the spatial organization of the family welfare unit at the social welfare centers in small town.

• Journal of Information Technology Services
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• v.17 no.4
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• pp.85-100
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• 2018

In this study, we formulated rational criteria to efficiently provide traffic information services via a crafted approach. By utilizing this, we presented a detailed traffic information service providing method that can overcome the limitations of existing link unit information provision system. Three methodologies such as user survey, data mining, and KHCM (Korea Highway Capacity Manual) utilization method were applied to formulate a rational expression standard for traffic information service. Each method was designed to establish a quantitative criterion for various traffic conditions and to enable user-oriented traffic information service in consideration of the traffic principal/compatibility. Considering the results of each methodological analysis in a comprehensive manner, the basic expression standards for traffic information service was formulated. Then we presented improvements such as traffic condition step by road, speed range of traffic condition, expression term of traffic condition and so on. In order to complement the problems of the information provision system of the existing link unit based on the derived improvement criterion, we presented the detailed traffic information service provision method by using the traffic speed data of the second order. And we applied this to the two links of Daegu city. The method presented in this research can improve the quality of traffic information service. Not only it can be used for various fields such as optimal route search, traffic safety service and so on.

• Journal of Korean Society of Rural Planning
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• v.18 no.3
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• pp.91-101
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• 2012

The purposes of this study were to identify the living environment in rural fishing area and to suggest checking methods for implementation performance. Rural service standard is the key factor of rural development in Korea. In 2012. The first Implementations of performance was announced. The results were presented to the unit by the City and the County. Because of Fishing villages exists as a unit by the haengjeongri. It is difficult to know the status of the fishing villages by the Rural service standard. In order to look for the actual conditions in rural fishing village it was investigated in the 100 Eochongye. The data used in the analysis is 577 questionnaires. Analysis showed that rural fishing areas were superior to general state of rural in the 8 items of rural service standard. Especially housing, transportation and health care sector in rural fishing area wes better than general state of rural. But Public safety and order is relatively poor. This is because Fishing village contains islands. Presenting to improve rural service standard based on the results of research. The items of rural service standard should be measured the actual residents' accessibility than opportunity of the public service, and after setting the rural service standard clearly related to the quality of life of residents in each sector. Accessibility aspects of the customer for the public services should be considered. Checking the performance for the unit by the City and the County should be replaced as a living zone in order to consider the facilities using nearby.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2018.05a
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• pp.289-290
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• 2018

• Journal of Korean Academy of Nursing Administration
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• v.21 no.5
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• pp.469-479
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• 2015

Purpose: The purpose of this study was to compare hospitalized patients in comprehensive nursing care units and general care units as to satisfaction with nursing care and factors influencing their intent to revisit the hospital. Methods: A cross-sectional study was conducted with 178 patients who had been hospitalized in a comprehensive nursing care unit and a general care unit in one hospital. Participants completed self-report questionnaires. Data were analyzed using SPSS 21.0. Results: There was a significant difference between the comprehensive nursing care unit and general care unit for intent to revisit the hospital (p=.036). Factors influencing intent to revisit the hospital for patients in the comprehensive nursing care unit were 'satisfaction with nursing care' (p<.001) and 'use of additional costs for comprehensive nursing care' (p=.041). The factor influencing intent to revisit hospital for patients in the general care unit was 'satisfaction with nursing care' (p<.001). Conclusion: Findings indicate that comprehensive nursing care service in which all care is provided by nursing staff only, without family or private caregivers, increases intent to revisit the hospital. These results can be used as the foundation of reviewing the operation and expansion of comprehensive nursing care service.

• Proceedings of the KIEE Conference
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• 2001.07b
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• pp.1088-1090
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• 2001

In general, Power SCR(Silicon Controlled Rectifier) is most widely used in Power Plant as well as Industrial field. It has been controlled and operated according to its own control method. Especially, in case of Power plant, it plays a major role in AVR(Automatic Voltage Regulator) or electro chlorination control circuits. Generally, they used in Analog control system at above field. But each SCR current value is different because of load unbalance or switching characteristic variations, it may cause power plant unit trip or system disorder according to SCR element burn out or bad operating condition. Therefore, in this paper a development of 3 phase current balance control unit is described, it gets over the past analog control system limit, uses DSP(Digital signal processor) had high speed response, controls SCR gate firing angle for 3 phase current balance.

• Journal of the Korean Institute of Rural Architecture
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• v.24 no.4
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• pp.77-84
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• 2022

The purpose of this study is to derive implications by comparing the spatial distribution of each service facility per unit population(1,000 people) with population decline areas. For this purpose, major concepts such as living infrastructure services, Spatial Distribution of Rural Living Service Facilities, areas of declining population, and regional extinction were reviewed and trends in prior research. Based on the literature review, 'Spatial Distribution of Rural Living Service Facilities' analysis criteria were set, and it was derived by 'the number of facilities per 1,000 population by township' using population data and rural space data. And the trend of each service sector was identified and implications were derived with 89 cities and counties in 'depopulation areas' suggested by the Ministry of Public Administration and Security. The derived implications are as follows. In the medical, leisure, and sports infrastructure sectors, 'rural areas with few service facilities per unit population' and 'depopulated areas' tended to coincide. In addition, the distribution characteristics of rural and urban areas differed by sector, which is judged to depend on the inclusion of rural facilities and population density.

• Safety and Health at Work
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• v.10 no.4
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• pp.527-530
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• 2019

The increasing prevalence of inactivity and obesity, along with aging, has implications on work capacity of labor force. This study reports the relationships between activity level and BMI by age with objectively measured physical workload. Data were examined from a sample of 19 481 Finnish employees using an estimate of minute-to-minute oxygen consumption based on R-R interval recordings. The mean estimated %VO₂max during the working day was 12.1 (±3.6) and 15.1 (±4.5)% for men and women, respectively. Based on a linear model, the mean %VO₂max increased by 1.5%-unit per 10-year increase in age, by 2.1%-unit per 5 kg/㎡ increase in BMI, and decreased by 1.6%-unit if improving physical activity class by two (p < 0.001 for all). Overweight and obesity, together with inactivity, notably increases workload throughout the career, even though at young adulthood, the daily workload is almost the same for each person regardless of the BMI, activity level, or gender. This study highlights the importance of regular physical activity and normal weight in protecting the worker from excessive physical (cardiovascular) workload during the whole working career.

• Proceedings of the IEEK Conference
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• 1998.10a
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• pp.347-350
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• 1998

본 논문에서는 최근 광대역 무선 가입자망으로 각광받고 있는 LMDS(Local Multipoint distribution Service)시스템에서 Head-End 의 AIU(Air Interface Unit)와 HUB 사이의 거리에 따른 전송지연 시간과 HUB 와 가입자 장치(CPE:Customer Premises Equipment)내의 NIU(Network Interface Unit)간의 전송 지연 시간에 의하여 서비스 반경이 제한되어 지는 것에 관하여 살펴보고 적절한 서비스 반경에 대하여 제안하였다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.25 no.4B
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• pp.692-699
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• 2000

We build and analyze some types of queueing model to discuss capacity dimensioning of access links of a LAN interworking unit connected to the Internet backbone network. We assume that the IWU has a FIFO buffer to transmit IP packets to the Internet through the backbone. In order to analyze the system, we use a Poisson process and an MMPP process as input traffic models of IP packets and we use a general service time distribution as a service time model. But we use both an exponential service time and a deterministic service time in numerical examples for simple and efficient performance comparisons. As performance measures, we obtain the packet loss probability and the mean packet delay. We present some numerical results to show the effect of arrival rate, buffer size and link capacity on packet loss and mean delay.