• 디지털콘텐츠학회 논문지
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• 제19권9호
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• pp.1811-1817
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• 2018

증강현실기술에 기반하여, 구강방사선촬영 실습에 활용할 수 있는 새로운 임상시뮬레이터를 개발하였고, 이에 대한 효과를 검증하였다. 이 시뮬레이터를 사용한 실험집단과 기존의 텍스트 형식 교재를 사용한 통제집단으로 구분하여, 국내 치위생학과 학생 217명에 대해 설문조사 및 통계분석을 시행하였다. 증강현실형 시뮬레이터를 사용한 실험집단에서 자아효능감, 학습흥미도, 학습몰입도, 실습만족도가 높게 나타났다. 이를 통해, 증강현실형 치과방사선촬영 시뮬레이터가 구강방사선촬영 실습에 효과적인 학습매체로 활용할 수 있으며, 학습자의 임상실무역량 강화에 도움을 줄 수 있을 것으로 기대한다.

• Journal of Information Technology Applications and Management
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• 제21권2호
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• pp.81-98
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• 2014

Recently, due to external environment like the changes in health policy and various healthcare accreditations, along with hospital's internal efforts to improve the quality of medical services, demands for the development of medical information systems are increasing. Some examples are clinical information like DUR (Drug Utilization Review), CVR (Critical Value Report), and automatic benefit processing by treatment purposes, or hospital DSS (Decision Support System) on overall medical practice. Such systems act as a guide in making clinic judgments during practice or in other medical practice, and their effects on the medical treatment improvements are being proven by previous studies. In the reality of increasing attention in the effects of medical treatment improvement, studies related to hospital DDS were mostly focused on clinical, technical, and engineering points of view, and studies focusing on the user viewpoint are very limited. In order to verify the effects of DSS on practice improvements and hospital's management performance, this study used a research model constructed to verify how SERVQUAL of hospital DSS affects hospital management performance in BSC (Balanced Score Card) point of view. To empirically verify the research model, a questionnaire was conducted on the basis of "K-University Hospital's DSS" on clinicians and hospital employees related to system development, and the relationships between the factors were analyzed through path analysis. As a result of path analysis, excluding reactivity, tangibility, confidence, reliability, empathy among service qualities, had partially significant effects on management performance factors (learning and growth, internal process, financial affairs). This study is to prepare the theoretical ground on the management performance analysis of hospital DSS, and suggest the service quality of the system that should be considered in the planning and development stages for improved system.

• 한국사회복지학
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• 제61권3호
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• pp.179-204
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• 2009

본 연구는 사회복지학에서의 실행연구 이해와 적용을 높이기 위해 실행연구의 연구 설계 과정에 따라 실행연구 사례를 소개하면서, 사회복지학에서의 유용성을 논의하고자 한 것이다. 즉, '장애인거주시설에서의 이용자 참여 매뉴얼 개발 연구'의 수행 과정을 설명하고, 실행연구과정에서 연구참여자들에게 어떠한 변화가 나타나는지 질적 양적 자료 분석을 통해 실행연구의 효과를 살펴보았다. 이와 함께 실행연구의 사회복지학에의 유용성은 무엇인지를 논의하였다. 이 연구는 국내 최초로 사회복지학에서의 실행연구를 적용한 연구 수행과정 및 그 효과를 탐색함으로써, 사회복지학 실행연구의 이해 및 확산에 기여할 것으로 본다.

• 지역연구
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• 제10권2호
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• pp.17-29
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• 1994

This study attempts to examine the regional distribution and the locational pattern of leisure facilities at Kangnam-gu in Seoul. For the convenience of the analysis the facilities are classified into public and private sector and then the facilities are classified into 11 types: mineral spring resort, play ground, neighborhood park, swimming pool, gymnasium, bowling, pingpong, aerobic, golf practice, health, and billiard facilities. For the purpose data was collected from statistical yearbook in 1993 and lists of registered facility at department of living physics of Kangnam-gu office. The data of the density of facilities and the opportunity of facilities per facilities type and per region are analysed with the technology of GIS. Results may be summarized as follows. First of all, correlation between the results of Location-Allocation model and the results of Interaction model is very high. Secondly, on comparing the density of facilities with the opportunity of the facility use per eleven facility types, three discrete spatial pattems are found. The mineral spring resort facility type with the highest unbalanced density and opportunity of facility use is to be found. Play ground, neighborhood park, swimming pool, gymnasium, bowling, pingpong, and aerobic facility types have the high unbalanced density and opportunity of facility use. The golf practice, health, and billiard facility types have spatially balanced density and opportunity of facility use. Thirdly, as comparing the density and the opportunity of the facility use per 'dong' administration unit, the spatial patterns of the public and the private facilities are different in density of the facility use and otherwise two are similar in the opportunity of the facility use. Fourthly, patterns of facilities users have different charateristics based on facility use time, expense, residence, and access time and four regional patterns are to be found ; user favorable, facility profitable, user balanced, and unfavorable.

• 한국도서관정보학회지
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• 제51권4호
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• pp.121-156
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• 2020

콘텐츠 큐레이션의 목표는 콘텐츠의 홍수 속에서 이용자들이 필요로 하는 콘텐츠를 용이하게 검색할 수 있도록 콘텐츠를 분류, 조직, 배포하는 것인 데, 이를 위해서는 먼저 이용자들의 정보요구를 파악할 필요가 있다. KISTI 콘텐츠 큐레이션 센터는 2018년에 설립되었기 때문에 콘텐츠 이용자들에 대한 정보가 부족했다. 본 연구의 목적은 과학기술분야의 연구자들이 KISTI에게 어떤 콘텐츠를 원하고 KISTI가 그러한 콘텐츠를 어떻게 큐레이션 하기를 바라는 지 조사하는 것이었다. 이를 위해 국가과학기술연구회에 속한 24개 정부출연연구 기관에 연구 참여 요청을 하였고, 그 중 자발적으로 참여한 8개 기관의 연구자들을 대상으로 온라인 설문과 전화 인터뷰를 실시하였다. 그 조사 결과를 바탕으로 현재의 KISTI 콘텐츠 큐레이션 실무를 검토하고 개선할 수 있는 방안을 제안하였다. 본 연구의 결과는 과학기술 분야의 연구자들이 요구하는 콘텐츠와 콘텐츠 큐레이션 서비스에 대한 정보를 제공하므로, 이러한 결과는 정보기관들(도서관, 데이터 센터 등)의 콘텐츠 큐레이션 실무를 향상시키는 데 참고자료로 사용될 수 있다.

• 한국의학물리학회지:의학물리
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• 제33권4호
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• pp.172-179
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• 2022

Recently, tetrahedral phantoms have been newly adopted as international standard mesh-type reference computational phantoms (MRCPs) by the International Commission on Radiological Protection, and a program has been developed to convert them to computational tomography images and DICOM-RT structure files for application of radiotherapy. Through this program, the use of the tetrahedral standard phantom has become available in clinical practice, but utilization has been difficult due to various library dependencies requiring a lot of time and effort for installation. To overcome this limitation, in this study a newly developed TET2DICOM-GUI, a TET2DICOM program based on a graphical user interface (GUI), was programmed using only the MATLAB language so that it can be used without additional library installation and configuration. The program runs in the same order as TET2DICOM and has been optimized to run on a personal computer in a GUI environment. A tetrahedron-based male international standard human phantom, MRCP-AM, was used to evaluate TET2DICOM-GUI. Conversion into a DICOM-RT dataset applicable in clinical practice in about one hour with a personal computer as a basis was confirmed. Also, the generated DICOM-RT dataset was confirmed to be effectively implemented in the radiotherapy planning system. The program developed in this study is expected to replace actual patient data in future studies.

• 대한간호학회지
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• 제45권4호
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• pp.523-532
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• 2015

Purpose: The usability, user satisfaction, and impact of electronic nursing record (ENR) systems were investigated. Methods: This mixed-method research was performed as a time-motion (TM) study and a survey which were carried out at six hospitals between August and November 2013. The TM study involved 108 nurses from medical, surgical, and intensive care units at each hospital, plus an additional 48 nurses who served as nonparticipating observers. In the survey, 1879 volunteer nurses completed the Impact of ENR Systems Scale, the System Usability Scale, and a global satisfaction scale. Qualitative and quantitative analyses were performed. Results: The mean scores for the ENR impact, system usability, and satisfaction were 4.28 (out of 6), 58.62 (out of 100), and 74.31 (out of 100), respectively, and they differed significantly between hospitals (F=43.43, p<.001, F=53.08 and p<.001, and F=29.13 and p<.001, respectively). A workflow fragmentation assessment revealed different patterns of ENR system use among the included hospitals. Three user characteristics-educational background, practice period, and experience of using paper records-significantly affected the system usability and satisfaction scores. Conclusion: The system quality varied widely among the ENR systems. The generally low-to-moderate levels of system usability and user satisfaction suggest many opportunities for improvement.

• 지능정보연구
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• 제11권1호
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• pp.107-121
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• 2005

최근, 추천시스템과 협업 필터링에 대한 연구가 학계와 업계에서 활발하게 이루어지고 있다. 하지만, 제품 아이템들은 다중 값 속성을 가질 수 있음에도 불구하고, 기존의 연구들은 이러한 다중 값 속성을 반영하지 못하고 있다. 이러한 한계를 극복하기 위하여, 본 연구에서는 추천시스템을 위한 새로운 방법론을 제시하고자 한다. 제안된 방법론은 제품 아이템에 대한 클러스터링 기법에 기반하여 다중 값 속성을 팔용하며, 정확한 추천을 위하여 협업 필터링을 적용한다. 즉, 사용자간의 상관관계만이 아니라 아이템간의 상관관계를 고려하기 위하여, 사용자 클러스터링에 기반한 사례기반추론과 아이템 속성 클러스터링에 기반한 사례기반추론 모두가 협업 필터링에 적용되는 것이다. 다중 값 속성에 기반하여 아이템을 클러스터링 함으로써, 아이템의 특징이 명확하게 식별될 수 있다. MovieLens 데이터를 이용하여 실험을 하였으며, 제안된 방법론이 기존 방법론의 성능을 능가한다는 결과를 얻을 수 있었다.

• 산업경영시스템학회지
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• 제40권1호
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• pp.150-164
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• 2017

The development of an appropriate public service quality model has become increasingly recognised as an important subject of interest in the public sector as well as academia. In particular, the public systems enacted by governments are widely used and have a significant impact on national competitiveness. But few researches have been conducted to explore the quality dimensions of a public system service and empirically examine the relationship among related variables. Therefore, in this study, we strive to develop a quality measurement model of public system service that can be effectively used in practice. Using 601 samples gathered through a structured survey from project engineers, a conceptual quality model of public system is presented and discussed. Given the exploratory nature of this study, an exploratory factor analysis is used to investigate quality dimensions and partial least square (PLS) is employed in determining the structural relationships. From empirical results, we found that the quality dimensions of the public system had four distinct quality dimensions (design quality, environment quality, primary outcome quality, additive outcome quality). All four quality dimensions showed good representative factors in explaining user satisfaction. Perceived trust was proved to significantly mediate the relationship between quality dimensions and user satisfaction. Our research is expected to contribute to the literature by providing a good conceptual framework for assessing public system quality by linking four quality dimensions with user satisfaction. In particular, the developed model can elaborately measure process quality and multi-functional outcome quality of the system by the supplementation of design quality and additive outcome quality respectively. Practical implications are also suggested on the basis of our analysis.

• 한국환경보건학회지
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• 제38권6호
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• pp.503-509
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• 2012

Objectives: This study was performed in order to evaluate the generation characteristics of airborne bacteria and fungi while operating a household humidifier, in consideration of user habits. Methods: Microbial samples were collected in a closed chamber with a total volume of 2.76 $m^3$, in which a humidifier was operated according to experimental strategies. A cultivation method based on the viable counts of mesophilic heterotrophic bacteria and fungi was performed. Experimental strategies were divided into three classes: the type of water in the water reservoir (tap water, cooled boiled water); the frequency of filling the reservoir (refill every day, no refill); and the sterilization method (sterilization function mode, humidifier disinfectants). Results: Significant increases in the concentration of airborne bacteria were observed while the humidifier was in operation. The concentration had increased to 2,407 $CFU/m^3$ by 120 hours when tap water filled the reservoir without any application of sterilization, while for cooled boiled water, it was merely 393 $CFU/m^3$ at a similar time point. Usages of disinfectant in the water tank were more effective in decreasing bioaerosol generation compared to sterilization function mode operation. Generation characteristics of airborne fungi were similar to those of bacteria, but the levels were not significant in all experiments. Calculated exposure factor can be used as an indicator to compare biorisk exposure. Conclusion: This study identified the potential for bioaerosol generation in indoor environments while operating a household humidifier. User practices were critical in the generation of bioaerosol, or more specifically, airborne bacteria. Proper usage of a humidifier ensures that any biorisks resulting from generated bioaerosol can be prevented.