• International Journal of Reliability and Applications
• /
• 제12권1호
• /
• pp.49-60
• /
• 2011

The geometric process (GP) has been widely used for modeling failure and repair time sequences of repairable systems. The GP is mathematically tractable but restrictive in reliability applications since it actually assumes that the mean function of inter-failure times sequence asymptotically decreases to zero; and the mean function of successive repair times sequence asymptotically increases to infinity. This is generally unrealistic from an engineering perspective. This paper presents three extended GP models for modeling reliability deterioration and improvement (or growth) process. The extensions maintain the advantage of mathematical tractability of GP model. Their usefulness and appropriateness are illustrated with three real-world examples.

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 1997년도 추계학술대회 논문집
• /
• pp.812-815
• /
• 1997

A dynamic model of air circuit breaker with a spring-actuated linkage is derived, and its validation for analysis and design, particularly appropriateness for an analysis of high-speed motion behavior are checked through experiments. The dynamic model is developed through the modeling process based on ADAMS and Pro/Engineer. The simulation results of derived dynamic models for the rapid closing and opening operations are compared with actual responses using a high-speed camera and investigated to validate their usefulness.

• 한국문헌정보학회지
• /
• 제49권2호
• /
• pp.27-49
• /
• 2015

The purpose of this study is to suggest an appropriate index for evaluating preferences of Web contents by examining the h-index and its variants. It focuses on how successfully each index represents relative user preference towards topical subjects. Based on data obtained from a popular IT blog (engadget.com), subject values of the h-index and its variants were calculated using 53 subject categories, article counts and the 'Likes' counts aggregated in each category. These values were compared through critical analysis of the indices and Spearman rank correlation analysis. A PFNet (Pathfinder Network) of subjects weighted by $h_T$ values was drawn and cluster analysis was conducted. Based on the four criteria suggested for the evaluation of Web contents, we concluded that the $h_T$-index is a relatively appropriate tool for the Web contents preference evaluation. The $h_T$-index was applied to visually represent the relative weight (topic preference by user 'Likes' count) for each subject category of the real online contents after suggesting the relative appropriateness of the $h_T$-index. Applying scientometric indicators to Web information could provide new insights into, and potential methods for, Web contents evaluation. In addition, information on the focus of users' attention would help online informants to plan more effective content strategies. The study tries to expand the application area of the h-type indices to non-academic online environments. The research procedure enables examination of the appropriateness of the index and highlights considerations for applying the indicators to Web contents.

• 기술혁신학회지
• /
• 제17권4호
• /
• pp.703-732
• /
• 2014

국가연구개발사업에 대한 메타평가는 과학기술수요와 목표와 연계된 국가전체의 연구개발시스템의 틀 안에서 구축되어야 한다. 연구개발사업평가시스템은 투입, 수행, 산출, 활용의 전 과정으로 이해될 수 있다. 전문가 24명이 참여한 전문가 델파이기법을 통하여 24개의 평가지표가 개발되었다. 메타평가 모델은 중요한 관점 8개의 하위시스템을 포함하고 있다. 8개 하위시스템에는 기획의 적실성, 정보의 충실성, 평가투입에서 평가자의 적정성, 평가수행과정과 방법의 적절성, 평가활용보고와 응용의 유용성 등이 포함된다. 메타평가모형의 활용방법으로서 평정점수의 평균은 5점척도 기준으로 2.73이며, 이는 평가점수의 중앙값 3.0보다 낮게 나타났다. 평가결과의 환류는 연구개발프로그램의 개선에 특별히 강화될 것을 제언한다.

• 한국화재소방학회논문지
• /
• 제32권4호
• /
• pp.25-34
• /
• 2018

본 논문은 피난조명 및 음성경보 기능을 내장한 화재경보시스템 개발에 관한 연구이다. 기존 화재감지기에 화재시 피난성능향상을 위해 가장 중요한 화재조기인지 및 피난시야확보가 가능하도록 피난조명 및 음성경보 기능을 자체적으로 내장한 화재감지기 및 시스템을 개발하여 성능을 확인하였다. 개발된 시스템의 경우 평균조도가 1.62 lx, 평균음향 89.7 dB, 평균음성 86.1 dB로 형식승인 및 제품검사 기술기준을 만족하는 것으로 나타났다. 추가적으로 개발된 시스템을 이용한 피난성능실험결과 본 실험조건에서 기존시스템보다 63.08%에서 67.82%까지 피난시간이 단축되는 것으로 나타났다. 개발된 시스템의 경우 자체 음성경보를 통해 화재인지 실패를 방지하고, 비상조명 점등을 통해 최소한의 피난을 위한 가시거리를 제공함으로써 화재피해를 최소화할 수 있고, 화재취약계층인 청각장애인 및 시각장애인까지 고려함으로써 당위성 및 효용성을 갖춘 화재경보시스템으로 활용될 것으로 생각된다.

• 대한정형도수물리치료학회지
• /
• 제5권1호
• /
• pp.27-38
• /
• 1999

This evaluation was made through 1219 persons who had attended the lecture organized by O.M.T.( Orthopeadic Manual Therapy ) during the period of January to December 1998 in Seoul and in other 11 cities. The result of evaluation is summarized as follows : 1. With regard to general satisfaction with lecture, it was evaluated as 'more than good 'by 919 person(75.6%) for Preparation for lecture of lecturer' and by 969 person (71.4%) for 'Teaching Method'. Statistically, the significance was largely given to 'Couse and Preparation for Lecture of Lecturer' and 'Preparation for Lecture as per each Lecturer' (P< 0.001). 2. With regard to understanding of lecture, it was evaluated as 'more then good' by 675 persons(55.4%) for 'Appropriate Degree of Lecture Difficulties'. Statistically, the significance was largely given to 'Appropriateness of Teaching Courses and Degree of Lecture Difficulties' (P< 0.001). Degree of Lecture Difficulties' (P< 0.001). 3. With regard to satisfaction with lecture's performance, it was evaluated as 'more than good' by 969 persons (87.7%) for 'Lecturer's Zeal for Teaching" and by 751 persons(61.6%) for 'Suitability of Textbook'. Statistically, the significance was largely given to 'Sex Distinction and Lectuer's Zeal for Teaching' (P< 0.001) and 'Lecturer and Suitability of Textbook' (P< 0.001). 4. With regard to teaching environment, it was evaluated as 'more than good' by 464 persons(38.2%) for 'Appropriateness of Teaching Environment' and by 751 persons(61.8%) for 'provision of Appropriate Audio-Visual Aids for Teaching', Statistically, the significance was largely given to 'place and Appropriateness of audio-visual aids for Teaching' (P< 0.001). 5. With regard to parctical use of lecture, it was evaluated as 'more than good' by 805 persons(67.5%) for 'Usefulness to clinical demonstration' and by 873 person(71.7%) for 'Attitude towards study'. With the result of evaluation made as in the above, we are able to see that the education of orthopedic physical therapy which is organized by Orthpedic Physical Therapy Society of Korea, is being successfully conducted and evaluated by its members, and furthermore the staff of this society has to make his best endeavoures for the growth of this society and for the development of this education.

• 근관절건강학회지
• /
• 제20권1호
• /
• pp.31-42
• /
• 2013

Purpose: The purpose of this study was to develop an evidence-based dysphagia nursing care protocol for nursing home (NH) residents in Korea. Methods: The protocol was developed based on international guidelines and literatures. After testing content validity by experts, the protocol was applied to the intervention group (n=35) for 4 weeks at one NH in December, 2011, whereas the control group (n=34) received routine care. Results: The protocol was composed of one-page algorithm and detailed guidelines. Algorithm pathway was organized in 3 parts, including screening dysphagia risk, grouping by dysphagia risk level, and assigning nursing care into each group. The nursing care included positioning, oral care, meal time care, diet modification, providing exercise and maneuver, and checking dysphagia signs and symptoms. The experts verified the content validity. Protocol was revised to fit NH practice after the participant observation. Clinical validity was established upon evaluating usefulness, appropriateness, and convenience of the protocol by NH nurses. Dysphagia risk of the intervention group was significantly decreased. Conclusion: Developed protocol will improve the quality of dysphagia care in nursing homes as it can serve as a consistent and integrated standard for nursing care of residents with dysphagia.

• 정보관리학회지
• /
• 제34권2호
• /
• pp.97-114
• /
• 2017

본 연구는 이용자교육의 활성화를 위하여 공공도서관 어린이 이용자교육 교수학습지도안을 개발하는데 목적이 있다. 교수학습지도안 개발을 위해 문헌조사를 통하여 초등학교 3, 4학년을 이용자교육 대상으로 선정하고 이용자교육 내용으로 오리엔테이션 교육을 도출하였다. 교수학습지도안에 적용할 학습모형으로 학습자의 자발적이고 주체적인 교육 참여와 교수자의 역할을 구체적으로 설계할 수 있는 Jonassen의 구성주의 학습환경 모형을 선정하였다. 교수학습지도안 개발을 위해 먼저 구성주의 학습환경 모형을 분석하고 이용자교육에 적용하여 이용자교육 학습환경과 교수활동을 설계하였다. 이를 바탕으로 교수학습지도안을 작성하여 유용성과 적합성 평가를 진행하였으며 평가에서 제안된 사항을 반영하여 공공도서관 어린이 이용자교육 교수학습지도안을 개발하였다.

• 대한한방부인과학회지
• /
• 제35권2호
• /
• pp.16-27
• /
• 2022

Objectives: The purpose of this study is to analyze educational effect of ultrasound examination training with ultrasonic phantom in the department of Korean Medicine Obstetrics and Gynecology. Methods: All 4^th grade students in 2021 and 2022 of school of Korean Medicine, Dong-Shin University must be trained in the department of Korean Medicine Obstetrics and Gynecology according to ultrasound examination training guideline including Objective Structured Clinical Examination (OSCE). After completing ultrasound examination training, we distributed questionnaires to them about a confidence before OSCE and after OSCE, difficulty in using ultrasound, ultrasound reading, difficulty with probe manipulation and computer operation, ultrasound understanding, clinical usefulness. And then, we analyzed the related factors including descriptive statistics, frequency analysis, student's t-test and paired t-test by SPSS 12.0. Results: Confidence in using ultrasound showed differences among students by gender and year, but it was not statistically significant. The difficulty of ultrasound use and ultrasound reading was at a moderate level, and the gender difference was not significant, and the difference between the practical students by year was statistically significant. The difficulty of the operation of the ultrasonic probe was at a normal level, and the difference between the students in practice by gender and year was not statistically significant. Although they answered that they had a very good understanding of the use of ultrasound, there was a gender difference and it was statistically significant, and practical students by year was not statistically significant. They answered that the effect on clinical use was very sufficient, but it was not statistically significant. The appropriateness of the practice time was evaluated at a moderate level. Conclusions: The use and educational effect of ultrasound examination using ultrasonic phantom in the department of Korean Medicine Obstetrics and Gynecology clinical practice education was very effective.

• Korean Journal of Acupuncture
• /
• 제41권1호
• /
• pp.1-6
• /
• 2024

Objectives : The aim of this study is to set out case series study protocol to complete clinical pathway (CP) of hip and finger degenerative arthritis by applying CP, based on Korean medicine clinical practice guideline developed by clinical experts, to clinical field. Methods : The treatments included Manual acupuncture, acupoint injection, electroacupuncture, laser acupuncture, cupping, moxibustion, chuna, and physiotherapy. They were conducted in the 2nd week of admission and 4th week of out patient department (OPD) days. We carried out 10-point Likert scale questionnaires on the clinical usefulness and the satisfaction of patients and staff after applying CP. Appropriateness and improvement on patients were conducted using a 10-point Likert scale. An open-ended questionnaire was also conducted to ask if there was any requirement to be added. Results : In past research studies, there were no related studies about Korean medicine CP on hip and finger degenerative arthritis. Final version of CP is going to be completed based on the questionnaire. Conclusions : This evidence-based case series study protocol is expected to contribute development of hip and finger degenerative arthritis.