• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.911-914
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• 2012

For competitiveness of national B2C (Business to Customer) service industry, improvement of process and analysis focused on customer and change of service system are needed. To achieve this goal, accurate feedbacks from customers play an important role; however, there is no quantitative and standard system in Korea. The medical tourism industry is taking center stage as a high value added industry among many other B2C service industries. In this paper, we suggest an evaluation model for customer satisfaction measurement about medical tourism industry and the application system on smartphone for that.

• Proceedings of the KIEE Conference
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• 2002.11c
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• pp.399-402
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• 2002

In this study, we constructed a four-channel impedance measurement system including a two-channel goniometer to analyze human arm movement. Impedances and joint angles were simultaneously measured for wrist and elbow movements. As the impedance changes resulting from wrist and elbow movements depended heavily on electrode placement, we determined the optimal electrode configurations for those movements by searching for high correlation coefficients, large impedance changes, and minimum interferences in ten subjects (age: 29+6). Our optimal electrode configurations showed very strong relationships between the wrist joint angle and forearm impedance (correlation coefficient = 0.95+0.04), and between the elbow joint angle and upper arm impedance (correlation coefficient = -0.98+0.02). Although the measured impedances changes of the wrist (1.1+1.5 ohm) and elbow (-5.0+2.9 ohm) varied among individuals, the reproducibilities of wrist and elbow impedance changes of five subjects were 5.8+1.8 % and 4.6+1.4 % for the optimal electrode pairs, respectively. We propose that this optimal electrode configuration would be useful for future studies involving the measurement of accurate arm movements by impedance method.

• Korea Journal of Hospital Management
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• v.18 no.4
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• pp.97-112
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• 2013

This study is a proposal of quality scale and measurement for the Mobile Hospital Information System Usability used to the Chungnam National University Hospital in Daejeon Korea. This study is to provide decision- making guideline for hospital managers and to provide feedback for the users' information needs in Mobile Hospital Information System. The target people of the study were medical doctors in Chungnam National University Hospital. The service contexts of usability were request of medical Care, Vital sign check of Patient, Care Agreement of Patient, Blood management, Check of care state, Sign of choice doctors, Query of doctor order and patient measurement result. The Usability factors were the efficiency, effectiveness and satisfaction of quality model ISO9241-11. This study shows that the Mobile HIS is used for the communication and education between doctor and patients. Especially, The Care Agreement of Patient is a part of the most utilized in the Mobile HIS.

• Journal of the Korean Society of Physical Medicine
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• v.10 no.2
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• pp.1-7
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• 2015

PURPOSE: The aims of this study were to assess the intra-tester and inter-tester reliability and validity of hip range of motion using a smart phone in hip operative patients. METHODS: Twenty-five patients (eight total hip arthroplasty and seventeen femur neck fracture) participated in this study. The range of motions in active and passive hip flexion, abduction and external rotation were measured with a goniometer and smart phone over two times by two observers. The intra-tester and inter-tester reliability were evaluated using the intraclass correlation coefficient (ICC2,1). The validity was measured by Pearson's correlation coefficient RESULTS: The intra-observer reliability was good in all measured items (ICC>0.78). The inter-observer reliability was high with ICC (>0.90). All correlation coefficients of smart phone and goniometer was greater than 0.85 and showed a significant positive correlation (p<0.01). CONCLUSION: The range of motion measurement with a smart phone showed acceptable reliability. Therefore, it could be convenient and have economical benefits to measure the range of motion of the hip joint using a smart phone.

• Journal of Korean Medical classics
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• v.20 no.1
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• pp.39-48
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• 2007

The first chapter of the Oh Sib Young(五十營) explains that the length of the measurement of channels(脈度) is sixteen zahngs two cheocks(16丈2尺). The second chapter says that nourishing gi(營氣) circles around(周行) the whole body 50 times during 13,500 times of breathing in twenty-four hours. The third chapter explains that the total length reaches 810 zhangs(810丈) if it circles around 50 times. Through construction of word, comparison of annotation, investigation, literal translation, free translation, conclusion analysis of these ancient writings, the following results were obtained. In the second chapter, "twenty five bun(二十五分)" should be modified into "twenty bun one Ii six ho(二十分一釐六毫) " or "twenty bun and the rest(二十分有奇)", "forty bun(四十分)" should be changed into "forty bun sam Ii two ho(四十分三釐二毫)" or "forty bun and the rest", and "five su twenty bun(五宿二十分)" should be modified into "five su twenty one bun six li(五宿二十分六釐)" or "two hundred ten bun and the rest(二百十分有奇)" in order to clarify their meanings.

• Radiation Oncology Journal
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• v.9 no.1
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• pp.143-152
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• 1991

The work suggested in this paper addresses a method for collecting beam data for small circular fields. Beam data were obtained from philips 6 and 8 MV LINAC at Dept. Radiation Therapy at Gainesville Incorporated and Shands Teaching Hospital. Specific quantities measured include tissue maximum ratio (TMR), off-axis ratio (OAR) and relative output factor (ROF) In small field irradiation, special collimators were used to produce circular fields of 1 cm to 3 cm diameter in 2 mm steps, measured at SAO (soura axis distance) of 100 cm. Diode detector was chosen for primary beam measurement and compared with measurements made with photographic film and TLD dosimeters. The measured TMRs and OARs were formulated from limited measurements to generate basic beam data for reference set-up. The empirical formula were later, extended and generalized for any possible set-up using the trends of fitting parameters. The measured TMRs and OARs were well represented by the fitting formula developed.

• Imaging Science in Dentistry
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• v.43 no.3
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• pp.185-190
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• 2013

Purpose: The aim of the present study was to evaluate the measurement accuracy of endodontic file length on periapical digital radiography after application of noise reduction digital enhancement. Materials and Methods: Thirty-five human single-rooted permanent teeth with canals measuring 20-24 mm in length were selected. ISO #08 endodontic files were placed in the root canals of the teeth. The file lengths were measured with a digital caliper as the standard value. Standard periapical digital images were obtained using the Digora digital radiographic system and a dental X-ray unit. In order to produce the enhanced images, the noise reduction option was applied. Two blinded radiologists measured the file lengths on the original and enhanced images. The measurements were compared by repeated measures ANOVA and the Bonferroni test (${\alpha}=0.05$). Results: Both the original and enhanced digital images provided significantly longer measurements compared with the standard value (P<0.05). There were no significant differences between the measurement accuracy of the original and enhanced images (P>0.05). Conclusion: Noise reduction digital enhancement did not influence the measurement accuracy of the length of the thin endodontic files on the digital periapical radiographs despite the fact that noise reduction could result in the elimination of fine details of the images.

• Proceedings of the Korean Magnestics Society Conference
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• 2008.12a
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• pp.246.2-246.2
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• 2008

• Proceedings of the KOSOMBE Conference
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• v.1998 no.11
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• pp.203-204
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• 1998

ECG analysis is main techniques for diagnosing heart disease. In recent, some studies have been performed about detection of QT interval. But, it's difficult to detect QT interval because T wave is evasive. In this paper, we have detected peak point and end point of T wave and calculated QT interval. And the result has been compared with the other algorithm after detection of QT interval.

• Journal of Korean Medicine Rehabilitation
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• v.28 no.3
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• pp.87-96
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• 2018

Objectives The purpose of this study is to provide more whiplash injury-specific measurement tools for Korean patients by measuring the validity and reliability of Korean version of Whiplash Disability Questionnaire (WDQ). Methods Bilingual clinicians translated the original WDQ into Korean. After consensus conference between researchers, it was back-translated into English. The pre-final version was completed and administered to 71 hospitalized patients diagnosed with whiplash injury. Validity was evaluated by concurrent validity. Reliability was assessed using Cronbach's ${\alpha}$ and intraclass correlation coefficient. Results The Korean WDQ showed good reliability with high internal consistency and intra-class correlation coefficient (Cronbach's ${\alpha}=0.96$, intraclass correlation coefficient [ICC]=0.82). Concurrent validity demonstrated positive correlations between Neck Disability Index, 36-Item Short Form Health Survey and WDQ. Conclusions The Korean version of WDQ is a valid and reliable tool for use as a measurement of whiplash injury in Korean patients, and it will be a very useful evaluation tool for both clinicians and researchers.