• 한국정보교육학회:학술대회논문집
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• 한국정보교육학회 2021년도 학술논문집
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• pp.25-30
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• 2021

2022 개정 교육과정에서 AI교육의 도입에 따라 데이터 관련 교육의 필요성이 대두되고 있는 상황에서 학생들의 데이터 기반 문제해결력을 향상 시키는 것이 필요하다. 본 연구는 이러한 필요성에 따라 학생들의 데이터 기반 문제해결력을 향상하기 위한 SW교육에 대한 방안을 연구하고자 한다. ADDIE 교수설계모형을 바탕으로 프로그램을 설계하였고, 교사를 대상으로 요구분석 설문조사를 실시하여 요구 분석을 실시하였다. 요구분석 결과에 근거하여 마이크로비트를 활용한 데이터 기반 문제해결을 주제로 교육 프로그램을 설계하였다. 본 연구에서는 데이터 기반 문제해결의 중요성과 그 역량의 필요성을 제기하였다. 후속 연구에서는 데이터 기반 문제해결 SW 교육이 문제해결력에 어떤 유의미한 효과성을 나타낼지 밝히는 것이 필요하다.

• 한국인터넷방송통신학회논문지
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• 제8권5호
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• pp.13-19
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• 2008

멀티미디어 컨텐츠 전송을 위한 모바일 애드-혹(ad-hoc) 네트워크 라우팅 프로토콜은 네트워크의 QoS를 보장해야 때문에 적은 지연 시간과 설립된 경로를 유지하는 것을 필요로 한다. 이 논문에서 제안하는 프로토콜인 HODMRP(History-based On-Demand Multicast Routing Protocol)는 경로를 설립하기 위하여 session history라는 기준을 추가함으로써 강화된 On-Demand Multicast Routing Protocol (ODMRP)이다. 만일 경로가 깨지는 경우가 발생한다면, session history에 의하여 이미 선택된 여분의 안정적인 경로를 이용하여 전송할 수 있다는 것이 이 프로토콜의 특징이다. HODMRP는 시뮬레이션 결과에 의할 때 ODMRP보다 더 나은 패킷 전송률(PDR) 값과 더 낮은 지연 시간을 가진다.

• 한국인공지능학회지
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• 제10권1호
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• pp.27-32
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• 2022

As the need for eco-friendly transportation increases due to the deepening climate crisis, many local governments in Korea are introducing shared bicycles. Due to anxiety about public transportation after COVID-19, bicycles have firmly established themselves as the axis of daily transportation. The use of shared bicycles is spread, and the demand for bicycles is increasing by rental offices, but there are operational and management difficulties because the demand is managed under a limited budget. And unfortunately, user behavior results in a spatial imbalance of the bike inventory over time. So, in order to easily operate the maintenance of shared bicycles in Seoul, bicycles should be prepared in large quantities at a time of high demand and withdrawn at a low time. Therefore, in this study, by using machine learning, the linear regression algorithm and MS Azure ML are used to predict and analyze when demand is high. As a result of the analysis, the demand for bicycles in 2018 is on the rise compared to 2017, and the demand is lower in winter than in spring, summer, and fall. It can be judged that this linear regression-based prediction can reduce maintenance and management costs in a shared society and increase user convenience. In a further study, we will focus on shared bike routes by using GPS tracking systems. Through the data found, the route used by most people will be analyzed to derive the optimal route when installing a bicycle-only road.

• 한국비블리아학회지
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• 제17권2호
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• pp.239-259
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• 2006

본 연구의 목적은 중앙 행정기관 자료실이 이용자에게 보다 효율적인 웹기반 정보서비스를 제공하기 위한 방안을 제시하기 위한 것이다. 그러기 위하여 국내 중앙행정부처 18개 기관 자료실을 대상으로 '전용 홈페이지 구축 기관'과 '전용 홈페이지 미구축 기관'으로 나누어 이용자의 요구사항이 어떻게 다른지를 분석하였다. 그 결과 '전용 홈페이지 구축 기관'은 홈페이지 홍보, 홈페이지 이용률 향상을 위한 교육프로그램 제공 다양한 홈페이지 서비스를 위한 시스템 유틸리티 개선이 필요한 것으로 나타났으며. '미구축 기관'은 강력한 검색기능, 다양한 컨텐츠, 질 높은 정보서비스를 받을 수 있는 홈페이지 구축이 필요하다는 이용자의 요구가 있었다.

• 한국치위생학회지
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• 제22권1호
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• pp.63-72
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• 2022

Objectives: This study was conducted to prepare basic data to propose the necessity and utilization of oral welfare products in the welfare services of the long-term care insurance system, focusing on facility workers working in elderly facilities. Methods: The analysis was conducted on 144 workers working at some local elderly facilities. The questionnaire was constructed by classifying the use of oral welfare tools into 6 questions and the necessity and demand for oral welfare devices into 13 questions. Frequency analysis and technical analysis were performed for data analysis, and one-way ANOVA was performed for differences in the necessity and demand for oral welfare equipment. The statistical significance level was p<0.05. Results: As a result of examining the awareness of the necessity and demand for oral welfare equipment among workers in elderly facilities, the awareness of the necessity of including oral welfare equipment in the items of welfare equipment in the current long-term care insurance system was high at 4.15 points. As a result of analyzing the correlation between awareness of care products and the need and demand for oral welfare equipment, it was confirmed that there was a statistically significant positive correlation (p<0.01). Conclusions: In the long-term care insurance system for the elderly, oral welfare products need to be considered for welfare equipment services. The provision of oral welfare products within the long-term care insurance system for the elderly can provide opportunities and services to select various self-care tools. In addition, it is expected that it will be possible to promote changes in the long-term care insurance system for the elderly and to improve the system in a variety of positive ways.

• 보건행정학회지
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• 제28권3호
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• pp.202-209
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• 2018

Health care has two different facets. One is commodity and another is a right of human being. Health care as a commodity is utilized by demand approach in market. Demand is determined by economic factors such as price and income. From the last third of the 19th century until the early 1920s, priority of sickness insurance was replacing the income that workers lost as a result of illness and injury. By the 1920s, the capacity of applied biological and medical science was remarkably developed. Development of medical science stimulated the cost of medical care, and the burden of increased medical care cost required new role of medical care security system. In 1942, Beveridge report was published in United Kingdom, and health care was considered as a right of human being. In 1948, United Nations declared heath care as a right in the Universal Declaration of Human Right. In most countries introduced new medical care security policy based on health care as a right. The viewing health care as a commodity must be shifted toward need based care as a right. Need were understood to rest on demographic, epidemiological, scientific, and medical knowledge factors. Bring needed care to the population could best be achieved institutionally by a hierarchy of provider organizations, guided by planning bodies, which would provide comprehensive benefits. In Korea, health care in social health insurance (SHI) is considered as a commodity not a right. However, health policies under SHI must be need approach based on health care as a right. Mismatch between health policies and ideology of SHI made big troubles. It is important to realize ideology of SHI for good health policies.

• 전기학회논문지P
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• 제66권1호
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• pp.7-14
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• 2017

Recently, the power consumption of industrial consumer has increased rapidly, causing problems such as lack of power reserve margin in summer and winter, and therefore there is a growing need for maximum demand power management to consumers. In this paper, we studied small microgrid system consisting of battery ESS and photovoltaic power system, applied to small and medium sized factories to reduce the maximum demand power of daily industrial power load. To verify the validity of the study, we simulated a small microgrid system using Matlab/Simulink software. As a result of applying the simulation to small and medium sized plants that consume a lot of power, it is confirmed that there is a 13% reduction in demand compared to the existing maximum demand power. This result is expected to contribute to the improvement of the power reserve margin.

• Safety and Health at Work
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• 제14권1호
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• pp.85-92
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• 2023

Background: Presenteeism is closely related to work performance, work quality and quantity, and productivity at work. According to the job demand-control-support model, job demand, job control, and support play important roles in presenteeism. The present study investigated job characteristics profiles based on the job demand-control-support model and identify the association between job characteristics profiles and presenteeism. Methods: This secondary data analysis used the Sixth Korean Working Condition Survey, a nationwide cross-sectional dataset. The study included 25,361 Korean wage workers employed in the workplace with two or more workers. Participants were classified into four job characteristics profiles based on the job demand-control-support model, using latent profile analysis, and logistic regression was performed to examine the association between study variables. Results: Overall, 11.0 % of study participants reported experience of presenteeism in the past 12 months. Age, sex, location, monthly income, shift work, work hours, health problems, and sleep disturbances were significantly associated with presenteeism. The rate of presenteeism was the highest in the passive isolate group. The passive collective, active collective, and low-stain collective groups had a 23.0%, 21.0%, and 29.0% lower likelihood of experiencing presenteeism, respectively, than the passive isolate group. Conclusions: The job demand-control-support profiles and the risk of presenteeism were significantly associated. The most significant group that lowered the experience of presenteeism was the low-strain collective group, which had a low level of demand and high levels of control and support. Therefore, we need a policy to reduce job demand and increase job control and support at the organizational and national levels.

• 보건행정학회지
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• 제33권4호
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• pp.411-420
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• 2023

Background: The purpose of this study was to analyze the demand and supply status of patient beds by type of medical institution, categorized into 70 clinical privilege, in order to understand the regional bed supply situation. Methods: Utilizing the 70 clinical privilege defined by the Ministry of Health and Welfare, we calculated bed demand and supply quantities from 2019 to 2021 using data from Statistics Korea and the Health Insurance Statistical Yearbook. The bed demand calculation formula was based on the detailed guidelines for the medical sector by the Korea Development Institute and the 3rd edition of bed supply basic policies announced by the Ministry of Health and Welfare. Additionally, to mitigate distorted bed supply situations caused by factors such as regional levels and patient outflows, we classified bed supply types using the population decrease index indicator published by the Ministry of Public Administration and Security. Results: Among the 70 clinical privilege, it was analyzed that a relatively balanced bed supply situation exists overall, irrespective of the type of healthcare institution. However, in medical institutions at or above the level of hospitals, regions with bed supply ratios exceeding 20% compared to demand, particularly in institutions at or above the level of general hospitals, showed a relatively high rate of demand diversion. Conclusion: We have identified the bed supply types in the 70 clinical privilege in South Korea. Based on the results of this study, we emphasize the need for bed supply policies that consider regional characteristics. It is expected that this research can serve as fundamental data for future efforts aimed at managing or rectifying bed supply imbalances on a regional basis.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제12권2호
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• pp.41-50
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• 2006

Introduction of new longterm care policy for elderly in Korea would change many aspects of elderly care service facilities. Especially elderly home care services like adult daycare centers will expand drastically after beginning of longterm care insurance. The purpose of this study is to estimate demand of adult daycare centers by comparing with the U.S and Japanese cases. Korean government is expecting that adult daycare centers will expand ten times within 4 years. This estimate is exceeding the facility demand estimate of the U.S. and Japan. The results of population study and expecting growth rate of adult daycare centers in Seoul indicate that more than 300 centers, 4 times of the number of existing centers, are in need based on Seoul elderly population in 2004. To supply these numbers of facilities in short period, more in depth study should be followed. Existing adult daycare facilities' in Seoul were analyzed by their building and management types. Interior spaces of adult daycare centers in Korea are similar to the U.S. and Japan in space arrangements but much smaller in size. In depth study of space programming as well as overall demand survey of adult daycare centers is urgently in need for more realistic expansion of adult daycare centers.