• 한국사회복지학회:학술대회논문집
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• 2007.04a
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• pp.661-667
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• 2007

현재 일본 내에 거주하고 있는 외국인 중 재일 한국인/조선인(이하, 재일코리안)이 제일 많은 부분을 차지하고 있다. 재일 코리안 중 65세 이상이 13%가 넘는다(재일고령자 조사위원회, 2003). 이런 재일한국인/조선인의 고령자(이하, 재일코리안 1세라고 말함)는 대부분 식민지시대에 조국에서의 생활기반을 잃어버리고 일본에 건너오게 되거나 혹은 강제연행으로 인해 일본에 거주하게 되었다. 재일코리안 1세는 연령적으로는 후기 고령자이며, 문화의 차이, 언어적 문제 그리고 경제적인 문제 등의 어려움이 있다. 이런 많은 어려운 점 중에서도 특히 개호의 문제(노인수발 문제)는 가장 심각하다. 이런 문제들 중 먼저 역사적인 경위에 대해 선행연구 등을 통해 논해 보고자 한다. 또한 문화적 차이와 언어적 문제가 개호보험 서비스 이용에 있어서 장애가 될 가능성도 있을 수 있으며, 대다수가 무연금자인 점(길영(吉永), 2004), 개호보험과 재일코리안 1세의 경제적인 요인이 심각한 문제인 점인것(북촌(北村), 2004)을 말하고 있다. 이를 배경으로, 후꾸오까/나가사키 지역의 재일동포 1세에게 직접 설문조사를 실시했다. 조사 결과 재일코리안 1세는 일본의 고령자보다 훨씬 개호보험 서비스 이용에 소외될 가능성을 가지고 있었다. 재일코리안 1세의 개호의 문제는 한국에서가 아니라, 거주하고 있는 일본에서 해결되어 져야만 하는 문제이며 그 개선책 또한 논하였으며 향후의 방향성에 대해서도 고찰해 보았다.

• Journal of Korea Society of Industrial Information Systems
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• v.28 no.6
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• pp.115-129
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• 2023

This study compares and analyzes domestic and international carbon prices through CPS, which represents the level of carbon pricing. The results show that countries implementing carbon taxes had lower carbon intensity compared to those that did not. The introduction of a carbon tax is expected to enhance energy efficiency and reduce carbon emissions. As the carbon price rises to the level required for carbon neutrality, CPS decreases significantly, particularly in the residential and commercial sectors. Therefore, it is necessary to introduce a carbon tax in the country to reach the required carbon price level for carbon neutrality, with a priority on introducing it in the residential and commercial sectors.

• Journal of Korean Ophthalmic Optics Society
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• v.12 no.3
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• pp.93-96
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• 2007

Research was taken its place in Dong wun elementary school in Gwang ju city. Subject ages were somewhere around 9 to 13. Among total number of 1,196, subjects with emmetropia were 384 people (32.1%), with 22.56% of 9 year old students, 16.01% of 10 year old student, 36.45% of 12 year old student, 39.11% of 13 year old. When age increases, the rate of emmetropia increase as well. Gender dependence of emmetropia rato was 31.07% for boys and 33.33% for girls, which proves girls with higher emmetropia ratio than boys. Among subjects with binocular vision acuity lower than 0.7, those require spectacles, only 37.5% of 9 years old students, 30.3% of 10 year old students, 44.64% of 12 year old students, and 30% of 9 year old students were wearing glasses. It shows that spectacle-wearing ratio is very low in spite of visual acuty lower than 0.7.

• Journal of Environmental Policy
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• v.8 no.2
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• pp.145-164
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• 2009

Environmental problems, such as the depletion of natural resources, global warming, and the destruction of ecological systems, are among the most serious problems facing the planet. Since the early 1990's, many OECD countries have undertaken green tax reforms by introducing new environmental taxes to protect the environment. Environmental taxes have been used as an instrument of environmental policy more than direct regulation because economic instruments have a comparative advantage over direct regulation in terms of cost effectiveness and pollution abatement incentives. However, one important reason why green tax reforms have not progressed is due to fears regarding the negative effect of environmental taxes on international competitiveness in the industry and trade sectors. The main purpose of this paper is to analyze the effects of environmental taxes on industry and trade by using a theoretical model to compare the effects of environmental taxes on pollution-intensive and energy-saving industries.

• Journal of Environmental Policy
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• v.8 no.3
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• pp.139-162
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• 2009

This paper confirms previous results indicating that the expenditure elasticity of demand for polluting goods plays an important role in achieving efficiency gains from tax reforms. Moreover, this paper finds that the results of the tax reforms depend not only on the size of the expenditure elasticity for the polluting goods but also on the relative size of the expenditure elasticities between polluting goods and clean goods. It also shows that in order to enhance the overall tax efficiency by the environmental tax reform, the expenditure elasticity of demand for clean goods should be larger than that of polluting goods. The result implies the following policy suggestion: When the tax authority considers green tax reforms, the expenditure elasticities should not be neglected to achieve gains in the overall efficiency of the tax system.

• Pediatric Infection and Vaccine
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• v.12 no.2
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• pp.186-194
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• 2005

Purpose : Hepatitis A viral infections have been continued after re-emerging since mid 1990s in Korea. The incidence of this disease has been increased in young adults younger than 30 years of age since 2000. This study was performed to evaluate the prevalence of antibody to hepatitis A in Korea(two regions; Incheon and Changwon) in 2005, and was compared with the results of similar studies in mid 1990s. Methods : The study was conducted from January 2005 to June 2005, and consisted of 1,301 enrolled subjects, neonates to 50 years old, living in Incheon and Changwon in Korea. All sera were frozen and stored at $-70^{\circ}C$ until assayed. Anti-HAV IgG antibodies were measured by microparticle enzyme immunoassay(HAVAB, Abbott Lab., IL, USA). Results : The prevalence of anti-HAV IgG was 61.1% in infants younger than 1 year old, 30.5% in 1~5 years, 14.6% in 6~10 years, 1.7% in 11~15 years, 6.5% in 16~20 years, 36.6%in 21~30 years, 77.5% in 31~40 years, and 99.8% in 41~50 years. Statistical differences were not found between male and female, but there was statistical difference in 6~10 years old age group between the two areas. Conclusion : Our study indicate that the prevalence of antihepatitis A virus antibody has shifted from children to old adolescents and young adults. This result suggests that the risk of sudden outbreaks or increasing incidence of hepatitis A viral infections in young adults may be expected in our society. The preventive strategies of hepatitis A including vaccination should be prepared.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.14 no.1
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• pp.67-73
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• 2011

Purpose: Recently, the incidence of acute hepatitis A has increased nationwide and is related to a low rate of IgG anti-HAV production. To establish effective measures for preventing hepatitis A virus infection, an epidemiologic study on the seroprevalence of anti-HAV is needed. Thus, we investigated the seroprevalence of IgG anti-HAV in children living in Gwangju and Jeonnam. Methods: IgG anti-HAV levels were measured in a total of 1,435 patients who visited Chosun University Hospital between January 2009 and December 2009. Results: The overall seropositve rate was 40.8% (586/1,435). The seropositive rates were 41% among children under the age of 1 year, 49.9% for children 1~5 years old, 51.1% among individuals 5~10 years old, 12.9% for individuals 10~15 years old, and 8.2% for subjects over 15 years old. There was no significant difference between genders in any group. The seropositive rates in Gwangju and Jeonnam were 57.3% and 32.9% for children under the age of 1 year, 52.5% and 44.3% for children 1~5 years old, 60.2% and 33.9% among children 5~10 years old, 14.1% and 9.7% for children 10~15 years old, and 10.8% and 4.2% for individuals over 15 years old. Conclusion: The results demonstrated the low rates of IgG anti-HAV, particularly among subjects over 10 years old, which suggests the possibility of increasing clinical HAV infection rates among adults in the near future. We should actively prevent the spread of hepatitis A virus. Vaccination is the most effective means of preventing hepatitis A virus transmission among persons at risk for infection. Hepatitis A vaccination is recommended for children who have low IgG anti-HAV seropositive rates.

• Journal of Environmental Policy
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• v.7 no.2
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• pp.1-32
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• 2008

This study examined the income distribution effect of the environmental taxes in the energy sector by applying the Urban Family Survey and the Household Income and Expenditure Survey to the Kakwani index. The results analyzed are as follows: first, taxes of the non-transportation energy sector show progressive tax schemes, while those of transportation energy show regressive ones. Second, we calculated the scenario-specific progressivity index on basis of the existing energy price structure. Contrary to the previous works claimed to be regressive, the progressivity in scenario I got higher than before, except for the congestion taxes. Also, the index by the total sum of taxes in scenario II showed just a little bit higher progressive tax system. In scenario III, both the value added tax and the total sum of taxes have a little regressive structure, but the indexes in the environmental taxes, heat capacity taxes, and those which the environmental tax and the congestion tax and heat capacity taxes are summed up, are in general progressive. Third, subsidizing the tax revenues raised from the environmental taxes to the poor classes by a simulation approach shows more progressive as expected, implying the more subsidy the higher the progressivity index. As a result, it is said that the implementation of the environmental taxes has no negative impact on the income distribution, and the subsidy of the tax revenue raised from it to the poor can make the income inequality improve.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11a
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• pp.519-522
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• 2003

이 논문에서는 특징점 정보를 이용하여 기존의 병렬 세선화 알고리즘을 개선하는 방법을 제안하였다. 자동 지문 인식 시스템에서 특징점을 정확히 검출하기 위해서 지문영상의 세선화는 매우 중요한 부분을 차지한다. 이 논문에서는 기존 병렬 세선화 알고리즘에 픽셀의 연결성을 이용한 알고리즘을 추가하여 세선화를 수행하였다. 제안 방법의 성능평가를 위하여 이진 지문 영상을 사용하여 기존 방법과 비교하였으며 실험결과 세선화 정도가 우수함을 알 수 있었다.

• Proceedings of the Korea Information Processing Society Conference
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• 2018.10a
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• pp.97-100
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• 2018

세마포어 처리문제는 프로세스간 메시지를 전송하거나 공유메모리를 통해 특정 데이터를 공유할 때 발생되는 문제로 공유된 자원에 여러 개의 프로세스가 동시에 접근하면 안되며, 단지 한번에 하나의 프로세서만 접근 가능하도록 하여야 한다. 세마포어 기본정책은 호출되는 코어에 생성되며, 다른 코어에서는 IPI를 통해 존재 여부를 확인한다. 동일 코어에서 접근 시 기존방식으로 사용한다. 본 논문에서는 서로 다른 코어 및 운영체제에서 다른 코어에서 접근할 때에는 IPI를 통해 존재 여부를 확인한 후 더미 세마포어 구조체를 생성하여 관련 정보를 유지하고 해당 요청을 처리해 주는 세마포어 인터페이스 기능 설계 방법을 제안한다. 제안하는 세마포어 인터페이스 기능 설계 방안은 멀티 태스킹 기술 구현으로 기존 코어가 가지고 있는 성능상의 문제를 해결해 준다.