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HMD VR 기반의 이석증 재활훈련 시스템 설계 및 구현
송욱,홍민,박무균,김성엽 순천향대학교 부설 산업기술연구소 2015 순천향 산업기술연구소논문집 Vol.21 No.2
Recently, since the age of the population has been increased gradually, a number of dizziness patients has been increased dramatically. Otolithiasis is a typical disease related with a vestibular organ producing the dizziness and it causes the severe limitation on the economic and social activities. Otolithiasis is needed to take the medical attention and is requested the otolith replacement. However, the rate of relapse otolithiasis is over 50% and these patients can’t readily visit to the hospital because of the dizziness and fear. The proposed otolith replacement system provides a physical therapy using a head mount display(HMD) and the proposed rehabilitation training system for otolithiasis can alleviate these problems, so it can provide the easy and convenient solution for above-mentioned problems.
수동과 엔진구동형 기구를 이용한 난원형 근관의 형성에 관한 주사전자현미경적 관찰
송욱,허복,이희주 大韓齒科保存學會 2004 Restorative Dentistry & Endodontics Vol.29 No.2
The purpose of this study was to evaluate the efficiency of the preparation of oval canals using hand and engine-driven instruments with SEM observation. Thirty single-rooted teeth with oval canal were used in this study. The teeth were divided into 3 groups. In group A, the teeth were instrumented up to a size 35 K-file using RC-prep and irrigated with 5% NaOCl between each file size. In group B, the teeth were instrumented with Profile according to the manufacture's instructions using RC-Prep and irrigated with 5% NaOCl between each file size. In group C, the teeth were instrumented with GT file according to the manufacture's instructions using RC-prep and irrigated with 5% NaOCl between each file size. Then, in all teeth, a final flush of 5ml of distilled water delivered for 30s. Canals were dried with sterile standardized paper points. After preparing the canals, the teeth were sectioned along their mesial and diatal surfaces by using low-speed diamond disc, chisel and mallet. Each root section was then dehydrated in graded concentration of alcohol (70, 80, 90, 100%), mounted on an aluminum stub, sputter-coated with gold-palladium and observed with scanning electron microscope (HITACHI S-4200) in middle and apical area. The results of this study were as follows: 1. In the middle area, group B and group C showed less smear layer than group A, and it was statistically significant (p<0.05). 2. In the middle area, group B showed greater smear layer than group C, but it was not statistically significant (p>1.05). 3. In the apical area, group C showed less smear layer than group A, and it was statistically significant (p<0.05). 4. In the apical area, group A showed greater smear layer than group B, but it was not statistically significant (p>0.05). 5. In the apical area, group B showed greater smear layer than group C, but it was not statistically significant (p>0.05). 6. In all groups, the middle area was less smear layer than the apical area, and it was statistically significant (p<0.05).
청각장애아의 거리에 따른 청력 역치 비교 : 보청기 및 FM 시스템 적합 결과비교
송욱,구호림,송정환 한국청각언어재활학회 2006 Audiology and Speech Research Vol.2 No.2
소음 환경과 반향 그리고 화자와 청자 간의 거리로 인하여 신호 대 잡음 비율(SNR, signal to noise ratio)이 낮은 환경에서 언어 이해에 어려움이 있을 때 이를 보완할 수 있는 청각 보조 장치 가운데 가장 일반적인 것이 FM(Frequency Modulated) 시스템이다. FM 시스템은 소리를 받아들이고 해당 신호를 내보내는 FM 송신기(transmitter) 그리고 전파된 신호를 받아들이는 FM 수신기(receiver)로 구성되어 있다. FM 수신기로 들어온 신호는 스피커 또는 헤드폰 그리고 청각관련 장비를 통해서 사용자가 해당 소리를 들을 수 있다. 음향 신호의 특성 상 일정거리 이상 떨어진 경우에는 음향 강도가 감소될 수 있지만 FM 시스템을 적용하게 되면 강도의 감 소 없이 원하는 소리를 들을 수가 있다. FM 시스템의 사용은 교실이나 강당과 같은 곳에서 반향
송욱,이화민,남윤영,홍민 순천향대학교 부설 산업기술연구소 2017 순천향 산업기술연구소논문집 Vol.23 No.1
Dizziness is one of the most common diseases that everyone experiences in everyday life. Such dizziness is caused by various reasons, mainly caused by weakness and shock of the vestibular organs and can be recovered through the vestibular rehabilitation. The vestibular rehabilitation exists in various forms, but there are universal methods that can be performed for everyone. This training is trying to exercise the vestibular organ repeatedly through the eyes, head and balance movement. However, since these rehabilitation are boring and uninteresting, it is difficult for patients to continue to train and to confirm that they have performed them properly. In order to solve these problems, this research implemented the contents of the virtual reality vestibular rehabilitation which is fun and evaluable with Unity3D.