• 정보관리학회지
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• 제31권3호
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• pp.271-291
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• 2014

본 연구는 간호학과 학생들의 전자형태 문서의 이용 및 문서읽기 행태를 분석하기 위해 이들의 행태에서 나타나는 요소들에 대해 종합적으로 분석해 보고자 하였다. 이를 위해 본 연구는 간호학과 학생을 중심으로 지난 한 학기동안 학생들이 경험한 읽기행태를 조사하여 문서형태선호도와 요소 등을 다각적으로 분석하였다. 총 509명의 응답에 기초하여 분석한 결과, 간호학과 학생들은 일반적으로 전자형태문서에 대한 선호도가 높은 것으로 나타났으며, 소장하고 싶은 문서형태 또한 전자형태문서라고 응답하였다. 응답자 중, 약 94% 이상이 필요한 정보를 찾기 위해 30분 이상을 소요하고 있다고 나타났으며, 접근경로는 '네이버' 검색엔진을 가장 많이 사용하는 것으로 응답하였다. 또한 주로 찾는 정보의 주제는 수업관련 정보가 가장 많았으며, 정보의 접근 장소로는 집에서 주로 정보를 찾고 이용하는 것으로 나타났다. 특히, 응답자들의 이동 중에 나타나는 문서선호도는 전자형태에 대한 선호도가 높게 나타났으며, 이동의 간편성과 접근의 용이성이 가장 높은 이유로 드러났다. 본 연구의 결과는 간호학과 학생들의 문서읽기행태를 분석하여 인쇄형태와 전자형태 문서의 읽기행태에 대한 이해를 증진시키고 향후 간호학 분야에서의 의학도서관 디지털정보이용의 서비스 설계 및 도구를 개발 또는 보완하기 위한 자료와, 더 나아가, 디지털 도서관 이용자 서비스 개선 방안을 모색하는 데 자료를 제시하고자 한다.

• Journal of Information Science Theory and Practice
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• 제1권2호
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• pp.16-35
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• 2013

Relevance has a long history of scholarly investigation and discussion in information science. One of its notable concepts is that of 'user-based' relevance. The purpose of this study is to examine how users construct their perspective on the concept of relevance; to analyze what the constituent elements (facets) of relevance are, in terms of core-periphery status; and to compare the difference of constructions of two groups of users (information users vs. information professionals) as applied with a social representations theory perspective. Data were collected from 244 information users and 123 information professionals through use of a free word association method. Three methods were employed to analyze data: (1) content analysis was used to elicit 26 categories (facets) of the concept of relevance; (2) structural analysis of social representations was used to determine the core-periphery status of those facets in terms of coreness, sum of similarity, and weighted frequency; and, (3) maximum tree analysis was used to present and compare the differences between the two groups. Elicited categories in this study overlap with the ones from previous relevance studies, while the findings of a core-periphery analysis show that Topicality, User-needs, Reliability/Credibility, and Importance are configured as core concepts for the information user group, while Topicality, User-needs, Reliability/Credibility, and Currency are core concepts for the information professional group. Differences between the social representations of relevance revealed that Topicality was similar to User-needs and to Importance. Author is closely related to Title while Reliability/Credibility is linked with Currency. Easiness/Clarity is similar to Accuracy. Overall, information users and professionals function with a similar social collective of shared meanings for the concept of relevance. The overall findings identify the core and periphery concepts of relevance and their relationships in terms of coreness, similarity, and weighted frequency.

• 한국정밀공학회지
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• 제17권10호
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• pp.186-191
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• 2000

We use so many plastic products in everyday. Because polymer materials have a lot of merits including low cost and easiness of forming, they are widely using at many manufacturing industries. Microcellular foaming process appeared at MIT in 1980's to save a quantity of material and increase mechanical properties. The information about the thickness of cavity plays an important role in appling microcellular foaming process to the conventional injection molding process. It is essential to make an effective foam. The goal of this research is to measure the relation between the change of cavity's thickness and foaming magnitude made after inserting a gas. R/t is a conception that indicate proportion between radius and thickness of cavity in mold system. By means of SEM observation of side surface of cavity sample, foaming magnitude of cavity is mold system. By means of SEM observation of side surface of cavity sample, foaming magnitude of polymer in microcellular foaming process is decreasing gradually as the value of R/t is increasing. The proposed foaming magnitude changes data of polymer in relation to mold system can be applied in more extensive injection molding process, such as optimum design of mold for microcellular foaming process.

• 복식
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• 제57권4호
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• pp.45-60
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• 2007

Characteristics of Hanbok's traditional coloration have been carried on, based on social/cultural background of the past. Today, Hanbok is classified as traditional Hanbok, improved Hanbok, living Hanbok. Their designs, materials and colorations show significant differences. In this study, first, we have categorized and arranged the coloration trend of the women's Hanbok according to the types of coloration since 2000s. Secondly, Hanbok is classified as traditional Hanbok, improved Hanbok, and living Hanbok. And then examining their coloration trend and coloration characteristics of different types of Hanbok, so we can find the purpose far increasing understanding of various color beauty and coloration of today's Hanbok. The findings of this research are summarized as follows; 1. Traditional Hanbok coloration is influenced by the modern rotor and tone, and is apt to show the trend of emphasizing individuality. 2. Hanbok coloration of middle period in 2000's has become to use high value and chroma, giving more bright and luxurious impression then the early period. 3. For this study, we have categorized the total of 277 women's Hanboks by their coloration trends, through studying traditional Hanbok catalogues that enclosed vividly colored pure silk samples. As a result, it shows the order of contrary coloration(149), tone on tone coloration(56), similar coloration(23), monochrome coloration(20), tone in tone coloration(17), and 화학섬유chrome coloration(12). 4. Traditional, improved and living Hanbok show differences not only in their designs or materials but also in colorations. Using of traditional coloration is applied to traditional Hanbok and improved Hanbok in that order, and mostly the value and chroma of living Hanbok colorations are low, which emphasizes easiness to move and practicality.

• 가정∙방문간호학회지
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• 제8권2호
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• pp.159-170
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• 2001

Client(patient) satisfaction has been used for a variety of purposes in different settings, yet, those receiving home care services have been the focus of few satisfaction studies. Satisfaction is considered an indicator of quality of care and is also being used to assess the performance of home care providers and home health care delivery at multiple levels. The aim of this study was to develop the tool for evaluating client satisfaction in several aspects with home care service while maintaining or achieving acceptable reliability and validity. Firstly, Client Satisfaction Instrument made preliminary of 43 items composed basic 6 criteria and 7 indicators, based on a review of literature, quality improvement and client satisfaction findings in home care. Secondly, there were consisted in two expert panel groups who were made in professionals of research and practice in home care field. The tool was modified to 6 criteria and 7 indicators, 25 items after reviewing by two expert panel groups. The content validity index of the tool was above 0.8 and the results of internal consistency was more than 0.8 in all items. Finally. The Client Satisfaction Instrument in Home Care Service was made up 6 criteria such as client satisfaction of nurses's instruction of home care educational need. knowledge/technique/attitude of homecare nurses's performance. interpersonal relationship and emotional support of nurse. easiness of homecare accessibility, continuity of homecare service. overall efficacy of homecare use, 7 indicators. and 25 items. The results of evaluating client satisfaction will be able to contribute in quality improvement and service marketing in home care.

• 대한간호학회지
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• 제45권3호
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• pp.449-458
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• 2015

Purpose: Maternal knowledge, positive attitudes and interest toward breastfeeding may improve the sustainability of breastfeeding. This study examined the associations of knowledge, attitudes, and interest toward breastfeeding with the duration of breastfeeding in Korean mothers who used the internet. Methods: We conducted a cross-sectional study of 604 Korean mothers who breastfed their babies. Mothers were recruited through the internet and their knowledge, attitudes and interest toward breastfeeding were assessed using a web-based self-administered questionnaire. Geometric means and odds ratio (OR) with 95% confidence intervals were calculated. Results: Higher knowledge, attitudes, and interest toward breastfeeding were associated with longer duration of breastfeeding in Korean mothers. In particular, mothers who had optimal breastfeeding duration were more likely to be aware of the easiness of breast milk stimulation and breastfeeding, the development of attachment between mother and child, and pleasure from breastfeeding compared to those mothers with shorter duration. The association with optimal breastfeeding duration was more pronounced among mothers who graduated from high school for total attitude scores and total interest scores, compared to mothers who graduated from college or above. Conclusion: The results of this study suggest that it is important to improve maternal knowledge, attitudes, and interest toward breastfeeding in Korean mothers who use the internet as a source of knowledge. Also, the study results imply that the development of strategies to target mothers with relatively low education levels may improve breastfeeding rates.

• 한국의류학회지
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• 제33권5호
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• pp.752-763
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• 2009

The purpose of this study was to develop an effective marketing strategy for socks made of paper mulberry fiber, a new natural fiber, by understanding consumers' concerns and perception about the product and its quality in several dimensions. The first survey determined their perception of the products' image before using it. The second survey gauged consumer satisfaction with product quality after a two-week home-use test. Factor analysis using Cronbach's a and ANOVA analysis were performed for statistical analysis. In conclusion, consumer image perceptions of socks of mulberry fiber were classified into four categories -'practicality', 'wellbeing', 'high-quality' and 'traditionality'. The survey revealed differences between men's and women's perception of the 'practicality' and 'high-quality' factors. The women recognized a mulberry fiber sock as being more practical but of lower quality than did the men. And the quality satisfaction of the product was classified into four factor 'durability', 'suitability, 'wearability' and 'care-easiness'. In the case of 'suitability', men were more satisfied with the product than the women and in 'suitability' and 'wearability', a group of over 40' year-old consumers was more satisfied. The analysis of a relationship between image perception and satisfaction showed that a consumer group that perceived this product to have more 'practicality', 'high-quality' and 'well-being' was also more satisfied with the product. However, the 'traditionality' factor was unrelated to consumer satisfaction.

• 한국인터넷방송통신학회논문지
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• 제20권1호
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• pp.101-106
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• 2020

본 논문은 채널에서 발생되는 부호간 간섭을 줄일 수 있는 QE-MMA 적응 등화 알고리즘의 성능 개선을 위하여 varying stepsize를 적용한 VS-QE-MMA (Varying Stepsize-Quantized Error-MMA)에 관한 것이다. 송신 신호의 고차 통계치와 오차 신호의 부호만을 이용하는 SE-MMA에서 오차 신호의 크기를 power-of-two 연산을 적용하여 탭 계수 갱신시 필요한 승산과 감산을 천이와 감산만으로 대체하여 H/W 응용을 용이하도록 QE-MMA가 등장하였다. QE-MMA는 이와 같이 연산량의 단순화에 의한 적응 등화 성능이 열화되므로 이를 개선하기 위하여 제안 방식인 VS-QE-MMA에서는 적응을 위한 고정 stepsize를 오차 신호의 비선형 변환에 의한 varying stepsize를 적용하였다. 동일한 채널과 신호대 잡음비에서 제안 방식이 기존 QE-MMA보다 개선된 성능을 얻을 수 있음을 시뮬레이션으로 확인하였다. 시뮬레이션 결과 VS-QE-MMA가 QE-MMA보다 모든 성능 지수에서 우월하였으며, 신호대 잡음비가 10dB 이상일 때 varying stepsize의 효과를 얻을 수 있음을 확인하였다.

• 한국인터넷방송통신학회논문지
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• 제21권2호
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• pp.67-72
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• 2021

본 논문에서는 MMA 적응 등화 알고리즘의 연산량을 간략화시킨 DSE-MMA (Dithered Signed-Error MMA)와 QE-MMA (Quantized-Error MMA) 의 적응 등화 성능을 비교하였다. DSE-MMA 알고리즘에서는 적응 등화기의 탭 계수 갱신을 위한 오차 신호와의 승산 부분에서 극성만을 고려하며 dithered signal을 이용하여 잡음에 대한 robustness를 개선하지만, QE-MMA 알고리즘에서는 오차 신호의 비선형 power-of-two 양자화 연산을 수행한 후 이의 극성만을 이용하므로 H/W 응용을 쉽게 한다. 이들 알고리즘을 동일 채널의 환경에 적용하여 등화기 출력 신호 성상도, 수렴 특성을 나타내는 잔류 isi, 최대 찌그러짐과 MSE 및 알고리즘의 외부 잡음에 대한 강인성을 나타내는 SER을 비교하였다. 시뮬레이션 결과 SER의 제외한 나머지 성능에서 QE-MMA가 DSE-MMA보다 우월하며, SER에서는 dither 신호에 의하여 DSE-MMA가 우월함을 알 수 있었다.

• 한국인터넷방송통신학회논문지
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• 제9권6호
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• pp.101-109
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• 2009

공단지역이나 오폐수 발생 지역에서 발생하는 악취로 인해서 주민들이 불편을 겪고, 해당 지방자치 단체에 민원을 제기하는 일이 빈번히 발생하고 있다. 최근 악취 발생 가능성이 있는 지역을 관내 많이 보유한 지방자치 단체들은 악취 발생 여부를 모니터링하고 필요시 원격으로 현장의 공기를 포집하는 명령을 내릴 수 있는 서비스를 요구하고 있다. 본 논문에서는 악취 센서 및 기상 센서 값을 실시간으로 모니터링 및 제반 장치 관리 업무를 웹 브라우저상에서 수행할 수 있는 시스템을 제안한다. 본 시스템은 기존 시스템과는 달리 사용자의 위치에 구애받지 않고 여러 대의 장치를 동작시키고 관리할 수 있는 기능을 제공한다. 또한, 본 시스템의 블랙보드기반 다중 프로세스 구조는 시스템 사용 중에 필요성을 느낀 새로운 소프트웨어 모듈을 쉽게 통합할 수 있도록 한다. 우리의 시스템을 실험한 결과, 사용 편리성면에서 사용자 만족도가 높았다. 우리의 시스템은 현재 한 지방자치단체의 악취 발생 예정 지역에서 운영되고 있다.