• Physical Therapy Rehabilitation Science
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• 제11권3호
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• pp.376-383
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• 2022

Objective: This study investigated how social support and self-efficacy affect the quality of life of elderly people with chronic diseases. Design: The study consisted of descriptive survey research. Methods: A questionnaire covering social support, self-efficacy, and quality of life was distributed to 320 elderly people with chronic diseases. Pearson's correlation analysis was performed to examine the correlation between the respondents' social support (family support, friend support, medical support), self-efficacy (confidence, self-regulation efficacy, preference for task difficulty), and quality of life. Multiple regression analysis was also performed to identify the factors affecting the respondents'quality of life. Results: "Friend support" and "quality of life" (r=-636, p<0.001), had a negative correlation, "confidence" and "quality of life" (r=0.827, p<0.001), "self-regulating efficacy" and "quality of life" (r=0.736, p<0.001), and "preference for task difficulty" and "quality of life" (r=0.295, p<0.001)-had positive correlations. Friend support (𝛽=-0.164, p<0.001), confidence (𝛽=0.592, p<0.001), and self-regulation efficacy (𝛽=0.160, p<0.001) were found to affect quality of life. The independent variables showed the following degrees of influence, in order: confidence, friend support, and self-regulation efficacy. Their explanatory power was 73.3% (F=146.844, p<0.001). Conclusions: The quality of life of elderly people with chronic diseases can be improved by formulating health-promotion programs that foster a sense of community.

• 정보기술과데이타베이스저널
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• 제7권2호
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• pp.87-100
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• 2000

전통적 오프라인 비즈니스에 비하여 e-Business의 특징 중 하나는 고객충성도 개념이 급격한 변화를 겪고 있다는 점이다. 본 연구는 e-Business의 핵심 기반인 정보시스템의 품질이 고객충성도에 어떠한 영향을 미치는지를 분석하였다. 즉, 정보시스템 품질을 시스템 품질, 정보 컨텐츠 품질, 서비스 품질 3개 독립변수로 설정하고, 이러한 변수들이 종속변수인 고객충성도에 미치는 영향을 실증적으로 검증하였다. e-Business 중 가장 활성화되고 있는 사이버증권 분야를 조사대상으로 하였으며, 온라인 설문조사와 방문조사에 의하여 8,265명에 달하는 사이버 고객 데이터가 수집되었다. 데이터 분석 결과, 3개 독립변수 모두가 고객충성 도에 긍정적인 영향을 미치는 것으로 나타났으며, 그 중에서 시스템 품질이 가장 큰 영향력을 지니고 있는 것으로 분석되었다.

• 지역사회간호학회지
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• 제13권2호
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• pp.292-305
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• 2002

Purpose: The purpose of this study was to conduct a systematic assessment on the level of health status, and quality of life of the health care beneficiaries registered in health management programs of public health centers. In order to investigate the level of health status and the quality of life and to find factors affecting them, the PRECEDE model, that was developed by Green, et al. for the purpose of a comprehensive diagnostic research, was used. Method: The subjects were 81 residents who resided K-gu, Seoul. Data were collected from September, 1999 to August, 2000 using a self reported questionnaire. The data were analyzed by descriptive statistics, t-test, Kruskall-Wallis test, Pearson's correlation coefficient. and path analysis. Results: 1. The quality of life and the level of health promoting lifestyle were moderate or more, but were not significantly different by sex, age, marital status, educational level. occupation, and monthly household income. 2. Self-efficacy was significantly correlated to be a perceived benefit, social support and health-promoting lifestyle. Perceived benefit had a significant correlation with social support and health promoting lifestyle. There was also a significant correlation between the level of satisfaction, and the availability of the health promotion program. 3. Social support, health promoting lifestyle, and health status were found to influence the quality of life directly, whereas self efficacy and perceived benefit affected the quality of life indirectly through social support. Conclusion: The results of this study suggest that the health promotion program should include strategies to strengthen self efficacy and perceived benefit to enhance social support, and to encourage health promoting behaviors in order to improve the quality of life of the health care beneficiary.

• 한국콘텐츠학회논문지
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• 제12권4호
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• pp.282-291
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• 2012

본 연구는 요양보호사의 직무만족이 서비스 질에 미치는 영향을 분석하여 요양보호사의 직무만족 향상과 보다 나은 질적 서비스를 제공하기 위한 자료로 활용하는데 그 목적이 있다. 부산시 소재 6개구 소재 16개 기관에서 근무하는 요양보호사에게서 회수된 설문지 250부 중 216부를 SPSS 12.0 을 이용하여 설문문항의 신뢰도 검증, 상관관계 분석, 회귀분석을 실시하였다. 요양보호사 직무만족 요인이 서비스 질에 미치는 영향을 알아보기 위해 회귀분석을 실시한 결과, 요양보호사의 업무자체 만족도가 높을수록, 직업안전성에 대한 만족도가 높을수록 서비스 질에 긍정적인 영향을 미치고, 요양보호사의 업무부담, 직무환경에 관한 만족은 서비스 질에 유의미한 영향을 미치지 않는 것으로 나타났다. 요양보호사의 업무자체만족도 수준과 직업안정 관련 구조 개선을 충족시킬 수 있는 여건들이 조성된다면 보다 양질의 요양보호 서비스 제공을 기대할 수 있다는 것을 보여주는 것이다.

• 한국수학교육학회지시리즈A:수학교육
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• 제59권3호
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• pp.237-254
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• 2020

본 논문은 수업을 위한 수학적 지식과 수업의 질에 대한 상관관계를 보고하는 연구이다. 선다형 평가 문항 유형의 설문지를 이용하여 교사들의 수업을 위한 수학적 지식을 수집하였고, 촬영된 그 교사들의 수업을 수학 수업 분석 도구를 이용하여 수업의 질을 평가하였다. 두 점수들의 상관관계를 통계적으로 분석하여, 유의미한 양적 상관관계가 있음을 보고한다. 또한, 수집된 수업 영상과 교사들의 인터뷰 자료의 분석을 통해 수업을 위한 수학적 지식이 중재하지 못하는 수업의 질과 관련된 요소를 찾아내었다. 이러한 결과를 기반으로 수학 교사 교육에 대해 논의한다.

• 상하수도학회지
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• 제29권5호
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• pp.551-557
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• 2015

The TMDL (Total Maximum Daily Load) has been used to determine the water quality target. LDC (Load Duration Curve) based on hydrology has been used to support water quality assessments and development of TMDL. Also FDC (Flow Duration Curve) analysis can be used as a general indicator of hydrologic condition. The LDC is developed by multiplying FDC with the numeric water quality target of the factor for the pollutant of concern. Therefore, this study was to create LDC using the stream flow data and numeric water quality target of BOD and T-P in order to evaluate the pollutant load characterization by flow conditions in Heukcheon stream. When it is to be a high-flows condition, BOD and T-P are necessary to manage. BOD and T-P did not satisfy the numeric water quality target for both seasons (spring and summer). In order to meet the numeric water quality target in Heukcheon stream, management of non point source pollutant is much more important than that of point source pollutant control.

• 대한방사선기술학회지:방사선기술과학
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• 제44권4호
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• pp.367-373
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• 2021

A quality assurance of computed tomography(CT) have done seven items that were water attenuation coefficient, noise, homogeneity, spatial resolution, contrast resolution, slice thickness, artifact using by standard phantom. But there is no quality assurance items and methods for CT simulator at domestic institutions yet. Therefore the study aimed to access the CT dose index(CTDI), table tilting, image distortion, laser accuracy, table movement accuracy and CT seven items for CT simulator quality assurance. The CTDI at the center of the head phantom was 0.81 for 80 kVp, 1.55 for 100 kVp, 2.50 for 120 mm, 0.22 for 80 kVp at the center of the body phantom, 0.469 for 100 kVp, and 0.81 for 120 kVp. The table tilting was within the tolerance range of ±1.0° or less. Image distortion had 1 mm distortion in the left and right images based on the center, and the laser accuracy was measured within ±2 mm tolerance. The purpose of this study is to improve the quality assurance items suitable for the current situation in Korea in order to protect the normal tissues during the radiation treatment process and manage the CT simulator that is implemented to find the location of the tumor more clearly. In order to improve the accuracy of the CT simulator when looking at the results, the error range of each item should be small. It is hoped that the quality assurance items of the CT simulator will be improved by suggesting the quality assurance direction of the CT simulator in this study, and the results of radiation therapy will also improve.

• 한국산업융합학회 논문집
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• 제27권2_2호
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• pp.475-485
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• 2024

In many regions of Korea, including the Four Major Rivers, the seriousness of the problem of algal blooms due to eutrophication of water quality is being raised.In this study, in order to solve these social problems, we manufactured a filter using natural mineral fusion (red illite, zeolite, germanium ceramic, selenium ceramic, carbon ceramic) and independently developed a tank system for green algae experiments to observe and determine the stages of change in water quality. In order to study ways to improve water quality through quantitative analysis, 1 ton of severely polluted green algae water from the Nak dong River region was stored in a water tank and exposed to ultraviolet rays in the same environment as the Nak dong River. Then, the same environment as the Nak dong River was created. The results were derived from a 5-week water quality test. The results of this experiment confirmed that green-colored cyano bacteria were significantly reduced just by the turbidity results. The results were obtained through a request to the Korea Testing & Research Institute located in Changwon-si, Gyeong sang nam-do. CI-(chlorine ion) and NH3-N(ammonia nitrogen) had the effect of saving every week. The device used in this study was made of natural minerals free of heavy metals that are harmless to the human body and nature through long-term consideration and exploration to kill and prevent various strains living in water. Green purification system using natural hydrogen generating mineral filter were effective a non-chemical and physical methods. The results of this study are one way to contribute to the serious problems caused by green algae in many countries, and will contribute to the water quality environment by preventing the waste of environmental resources, improving the health of the people, and increasing the ability to purify environmental water quality at home and abroad.

• 한국정보통신학회논문지
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• 제15권11호
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• pp.2353-2358
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• 2011

수면은 우리 인간에게 매우 중요한 생리 현상으로, 인간은 일생의 삼분의 일 정도를 수면을 취하면서 보낸다고 한다. 본 논문은 수면을 이루는 환경을 개선하기 위하여 수면을 측정하고 수면의 질과 발전 방향을 모색한다. 수면 측정은 장면 전환 검출 방법 중의 하나인 X2 히스토그램을 이용하여 측정하도록 한다. X2 히스토그램 방법은 통계학적 장면 전환 검출 방법의 하나로서 다른 히스토그램 방법보다 성능이 우수하기 때문에 많은 연구에서 사용된다. 그리고 수면의 질을 발전시키기 위하여 피곤한 정도, 음주의 정도, 그리고 공복의 정도를 입력하여 각 상황별 뒤척임을 추출하여 그들의 상관관계를 알아본다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2006년도 추계 종합학술대회 논문집
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• pp.75-79
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• 2006

실시간 음성 서비스를 지원하는 VoIP(Voice over IP) 시스템에서 음성 품질은 지연, 지터, 손실, 그리고 역전된 패킷 순서에 의해 손상된다. 본 논문에서는 적응 재생 알고리즘에 의해 지터를 보상하고 패킷 손실 보상을 수행하며 패킷 순서를 정렬하는 수신단의 적응 재생 버퍼 제어 기법(Adaptive Playout Buffer Control: APBC)을 제안하였다. 또한 임베디드 VoIP 시스템을 구현하여 구현 시스템에서의 APBC 성능을 측정한 결과, 처리속도는 257$\mu$sec로 실시간으로 처리하기에 적합하고 MOS(Mean Opinion Score)에 의한 음성 품질은 고정 재생 지연 알고리즘에 비해 18% 개선되었다.