• 한국의료질향상학회지
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• 제2권2호
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• pp.112-129
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• 1996

Background : A small number of high cost patients usually spend a larger proportion of scarce health resources. Aged, long-term care and readmitted patients usually belong to these high cost patient group. Among others, long length of stay and readmission can be reduced by checking its cause, and these are the areas needed most of quality improvement activity. Characteristics of high cost medical users between health insurance program and medical assistance program were reviewed. Methods : The inpatient claims of health insurance and medical assistance program were analyzed. Patients were divided by 6 groups; long-term, mid-term, short-term, readmitted, cancer and aged. We defined high cost patients as those who had spent one and half million won and over per 6 months. Characteristics of high cost patients for each group were reviewed. Results : medical assistance patients used much more resources than the insured members in the average hospital cost per case but less in daily hospital cost. The former had a longer length of stay and had much heavier diseases. Major diseases of both group were cancer, diseases of circulatory system and chronic degenerative diseases. Gallstone and schizophrenia were more in the insured program. However, pulmonary tuberculosis, asthma were more common among the medical assistance patients. Early readmission before 2 weeks were 28-30% of the total readmission. Readmission rate in the malignat neoplasm and renal failure were 80% and more. Q.A program should be installed to prevent unnecessary readmissions. Conclusion : Almost 30% of early readmissions and admissions due to complications and long length of stay should be reviewed carefully to keep cost down and to enhance the quality of hospital care.

• 한국사회복지학
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• 제59권4호
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• pp.111-136
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• 2007

우리나라 국민기초생활보장제도는 여전히 노동시장참여를 유인할 만한 체계가 불충분하여 취업을 통한 탈빈곤을 꾀하기에는 역부족이라는 문제가 지적되어 왔다. 반면 미국은 1996년 AFDC를 TANF로 대체하고, 근로의무나 수급기간제한 조항 등을 강화함으로써 대상자들의 탈빈곤을 달성할 것이라 인정받고 있다. 미국의 TANF가 우리제도에 대안적일 수 있는지에 대한 상반된 의견이 존재하는 가운데, 본 논문은 TANF가 과연 탈빈곤 효과가 있는지를 하부조항별로 분석하였다. 분석결과 TANF의 근로의무조항은 오히려 소득을 감소시키고 빈곤발생을 증가시키는 것으로 나타났다. 수급기간제한은 이와 반대의 결과가 발견되었으나 아직은 그것의 효과를 확신할 수 없는 단계이다. 이 분석 결과는 TANF도 탈빈곤이라는 목표를 달성하려면 대상자들을 무조건 노동시장으로 내모는 것으로는 불완전하고, 저임금 노동자를 둘러싼 근본 문제를 동시에 해결해야 함을 시사한다.

• 재활복지
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• 제18권4호
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• pp.95-117
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• 2014

본 연구는 활동보조서비스(신체활동지원, 가사활동지원, 사회활동지원) 이용이 가족부양부담에 영향을 미치는지와 활동보조서비스와 가족 부양부담감 간에 가족탄력성(가족신념체계, 가족응집력, 상호작용)이 조절효과를 나타내는지를 파악하여 장애인복지의 실천적 개입 방안을 모색하는 근거자료를 제시하는데 목적이 있다. 본 연구의 연구목적을 위하여 경기도를 동부, 서부, 남부, 북부 지역으로 나누어서 2013년 4월 1일~5월 15일까지 활동보조서비스를 이용하는 1급, 2급 장애인가족 부양자 200명을 대상으로 자료를 수집하여 분석하였다. 자료분석은 spss 19.0 통계프로그램을 이용하여 탐색적 요인분석과 확인적 요인분석 그리고 위계적 회귀분석을 기초로 한 조절적 다중회귀분석(Moderated Multiple Regression Analysis)을 실시하였다. 본 연구의 주요 연구결과는 첫째, 활동보조서비스 중 신체활동지원을 이용하는 경우 장애인가족의 부양부담 감소에 영향을 주는 것으로 나타났다. 둘째, 활동보조서비스가 가족부양부담과의 관계에서 가족탄력성 중 가족신념체계와 가족응집력에서 조절효과가 있는 것으로 분석되었다.

• Korean Journal of Radiology
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• 제21권10호
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• pp.1150-1160
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• 2020

Objective: To describe the experience of implementing a deep learning-based computer-aided detection (CAD) system for the interpretation of chest X-ray radiographs (CXR) of suspected coronavirus disease (COVID-19) patients and investigate the diagnostic performance of CXR interpretation with CAD assistance. Materials and Methods: In this single-center retrospective study, initial CXR of patients with suspected or confirmed COVID-19 were investigated. A commercialized deep learning-based CAD system that can identify various abnormalities on CXR was implemented for the interpretation of CXR in daily practice. The diagnostic performance of radiologists with CAD assistance were evaluated based on two different reference standards: 1) real-time reverse transcriptase-polymerase chain reaction (rRT-PCR) results for COVID-19 and 2) pulmonary abnormality suggesting pneumonia on chest CT. The turnaround times (TATs) of radiology reports for CXR and rRT-PCR results were also evaluated. Results: Among 332 patients (male:female, 173:159; mean age, 57 years) with available rRT-PCR results, 16 patients (4.8%) were diagnosed with COVID-19. Using CXR, radiologists with CAD assistance identified rRT-PCR positive COVID-19 patients with sensitivity and specificity of 68.8% and 66.7%, respectively. Among 119 patients (male:female, 75:44; mean age, 69 years) with available chest CTs, radiologists assisted by CAD reported pneumonia on CXR with a sensitivity of 81.5% and a specificity of 72.3%. The TATs of CXR reports were significantly shorter than those of rRT-PCR results (median 51 vs. 507 minutes; p < 0.001). Conclusion: Radiologists with CAD assistance could identify patients with rRT-PCR-positive COVID-19 or pneumonia on CXR with a reasonably acceptable performance. In patients suspected with COVID-19, CXR had much faster TATs than rRT-PCRs.

• Advances in Automotive Engineering
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• 제1권1호
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• pp.143-152
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• 2018

In this study an economical image stitching algorithm for use in automotive industry is developed for retrofittable panoramic image assistance applications. The aim of this project is to develop a driving assistance system known as Panoramic Parking Assistance (PPA) which is cheap, retrofittable and compatible for every type of automobiles. PPA generates bird's eye view image using cameras installed on the automobiles. Image stitching requires to get bird's eye view position of the vehicle. Panoramic images are wide area images that cannot be available by taking one shot, attained by stitching the overlapping areas. To achieve correct stitching many algorithms are used. This study includes some type of these algorithms and presents a simple one that is economical and practical. Firstly, the mathematical model of a wide view of angle camera is provided. Then distorted image correction is performed. Stitching is implemented by using the SIFT and SURF algorithms. It has been seen that using such algorithms requires complex image processing knowledge and implementation of high quality digital processors, which would be impracticle and costly for automobile use. Thus a simpler algorithm has been developed to decrase the complexity. The proposed algorithm uses one matching point for every couple of images and has ease of use and does not need high power processors. To show the efficiency, images coming from four distinct cameras are stitched by using the algorithm developed for the study and usability for automotive application is analyzed.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2009년도 추계학술대회
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• pp.317-319
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• 2009

신체불수 장애인들은 다양한 종류의 보조 장치를 사용하고 있고 독서 보조 장치도 여러 종류 연구되고 개발되어 있다. 하지만 현재 개발되어 시판되고 있는 신체적 장애인을 위한 독서 보조 장치는 기능이 단순히 책장을 넘겨주는데 국한되어 있다. 본 논문에서는 신체적 장애인의 독서를 보조할 수 있는 장치의 프로토타입 모델을 Lego Mindstorm NXT를 이용하여 구현한 하드웨어의 책장 넘김 성공률 향상을 위해 설계를 수정하고 PDA와 같은 모바일 기기를 연동하여 보다 편리하고 유용한 기능 및 서비스를 구현한다. 그리고 장애인만을 위한 독서 보조 장치가 아니라 일반인들도 유용하게 사용할 수 있는 유니버셜 디자인 관점의 도구가 될 수 있는지 모색해본다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2013년도 춘계학술대회 논문집
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• pp.867-868
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• 2013

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제15권1호
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• pp.27-34
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• 2015

For a vision-based driver assistance system, unusual motion detection is one of the important means of preventing accidents. In this paper, we propose a real-time unusual-motion-detection model, which contains two stages: salient region detection and unusual motion detection. In the salient-region-detection stage, we present an improved temporal attention model. In the unusual-motion-detection stage, three kinds of factors, the speed, the motion direction, and the distance, are extracted for detecting unusual motion. A series of experimental results demonstrates the proposed method and shows the feasibility of the proposed model.

• 산업경영시스템학회지
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• 제6권9호
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• pp.45-59
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• 1983

This study focuses on the growth and development of small and medium industries of Korea, orienting to the development of up-to-date technology from now on and bolstering their competitive ability in the rapidly changing international markets. For this purpose, the small and medium industries should 1) develop high-level manpower of up-to-date technology, 2) make constant efforts to categorize and divide the fields of technology with big business groups to boost their competitiveness, 3) raise automation rate by turning all facilities into mechatronics, 4) positively develop software know-how, 5) jointly conduct researches in cooperation with venture capital and Governmental research institute, 6) categorize an systematize the industries. On the Governmental level, there should be 1) wide-ranging support and assistance in technology, finance, and the facilities, 2) positive opening of consumer market, 3) assistance in technical cooperation with other nations, 4) and such indirect assistance as fostering the fields of related technology.

• 환경영향평가
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• 제23권1호
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• pp.51-65
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• 2014

ODA projects such as multi-purpose dam, industrial complex, road construction etc. have resulted in environmental damage and resident relocation including destruction of site of living. Even the grandiose developments as ODA projects have made clear the value clashes between development and environmental conservation, and have brought about conflicts between public interests and public environmental right, and the discordance between public interests and private property rights in the recipient country. This study summarizes and analyses the Korea's ODA projects and will suggest the public participation and governance system based on Saemaul Movement, Strategic Environmental Assessment and Environmental Impact Assessment based on the guideline of OECD DAC, and emphasize Strategic Environmental Assessment and Social Impact Assessment in the procedure of ODA projects. In the future the ODA project should be implemented for the overcome of poverty and response to climate change based on the experience and trial and errors of Korea's compact growth and past ODA projects.