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      • KCI등재

        실용음악 전공 학생들의 발성치료 전후 성대 및 음성 특성 비교

        황연신,심미란,김철준,최용석,김상연,최찬호,선동일,Hwang, Yeon Shin,Shim, Mi Ran,Kim, Chul Jun,Choi, Yong Suk,Kim, Sang Yeon,Choi, Chan Ho,Sun, Dong Il 대한후두음성언어의학회 2016 대한후두음성언어의학회지 Vol.27 No.2

        Background and Objectives : Many students major in applied music singing have various difficulties in phonation when they sing or perform. But the studies about this cause are lack. The purpose of this study is whether singing voice therapy based on vocal music is effective or not to applied music singing students that have difficulties in phonation. Materials and Methods : Singing voice therapy program had been done to 8 students major in applied music singing during 7 weeks. We did laryngeal stroboscope, perceptual, acoustic and aerodynamic examination before and after singing voice therapy to this students. And we studied post examination results have differences or improvements compared to pre examination results. Results : Four male students don't have effective improvement after singing voice therapy but they shows slight improvement in aerodynamic examination values compared to pre examination values. Four female students shows improvement in aerodynamic examination values and pitch range increasing. Above all, one student's vocal nodules disappeared after singing voice therapy. Conclusion : Singing voice therapy based on music singing is very effective to the students major in applied music singing. Above all, their curriculum in applied music singing should include phonation training based on music singing before training perform and technic practices.

      • C 의과대학에서 문제강의에 대한 학생들의 직접평가가 강의개선에 미친 영향

        김석용, 이상진, 최재운, 김승렬, 김용대, 배성은, 김영규 충북대학교 의과대학 충북대학교 의학연구소 2012 忠北醫大學術誌 Vol.22 No.1

        연구목적: 팀티칭에 근거한 통합강의는 최근 대부분의 의과대학에서 시행되는 강의형태이다. 그러나 기 존에 사용되고 있는 온라인 강의평가 방식은 이러한 강의 특성에서 나타나는 문제점을 파악하기 힘든 점이 있다. 본 대학에서는 팀티칭에 의한 통합강의에서 문제강의를 직접적으로 파악하는 ‘문제강의 직 접평가지’를 개발하였다. 본 연구의 목적은 새로이 개발된 문제강의 직접평가지가 강의개선에 끼친 영 향력을 알아보고자 하는 것이었다. 연구방법: 2007년 2학기부터 2009년 2학기까지 충북대학교 의과대학 1, 2학년을 대상으로 문제강의 직접평가지에 의한 강의평가를 실시하였다. 평가지 질문 중에서 두 가지 객관식 질문에 대한 답변을 분 석대상으로 선택하였다. 질문은 첫째, ‘가장 유익하고 도움이 많이 되었던 강의들은 무엇입니까?’와 둘 째, ‘가장 어렵거나 이해하기 힘들었던 강의들은 무엇입니까?’였다. 강의평가를 실시한 강좌들 중에서 2 년 이상 연속적으로 강좌구조와 평가지의 객관식 질문 형식이 변하지 않은 14개의 강좌를 분석대상으로 하였다. 각각 연도의 평균 긍정비율을 다른 연도의 것과 카이제곱 검정 방법을 사용하여 비교하였다. 결과: 14개의 강좌 중에서 시작연도와 마침 연도 간에 긍정비율이 증가된 경우는 13개 강좌였다. 그 러나 통계적으로 의미가 있는 경우는 5개 강좌에서 나타났다. 결론: 문제강의 직접평가지에 의한 문제강의를 판별해 내는 방법은 단기간에 통합강좌의 개선에 효과 적이다.

      • 스테레오 비전을 이용한 이동로봇의 지도 작성을 위한 연구

        성용원,윤태성 國立 昌原大學校 産業技術硏究所 2002 産技硏論文集 Vol.16 No.-

        In this paper, an environment map bulding for the mobile robot navigation using a stereo camera system is studied. First of all, distance measurements are necessary to build the environment map. So, a distance measurement method using two fixed cameras is presented. To measure the distance using a stereo vision system, finding the common points in the left and the right images are needed. In this study, an area-based stereo matching is used to solve this problem. To reduce the computation time, 1) the DSP processor on vision board is used, 2) suitable sizesearch region for environment is taken, 3) small size model for matching is used, and 4) hierarchical search method is used. Also, a simple movement method is presented to make an environment map for mobile robot. Finally, the presented method is proved experimentally. The images of a corridor are taken by a stereo camera, and the distances of a corridor are obtained fast using the presented method from the images. And then, the environment map for the navigation of mobile robot is constructed. The acquired map is helpful for understanding the environment.

      • KCI등재
      • 가변 신호시간을 갖는 개선된 신호등 시스템 설계에 관한 연구

        정용국,용승일,원충상 한국교통대학교 2015 한국교통대학교 논문집 Vol.50 No.-

        Current of a simple traffic light system varies in a certain direction.Standby regardless of whether a certain order to change the signal or increase the vehicle's system is inefficient.This paper tries to design and implement the system of the vehicle according to the amount of variable signal and the presence of vehicle standby.Series of logic circuits using PLD and 74 to control the order of the length of the signal, the signal circuit design.Signal was verified using a breadboard circuit is variable, depending on the amount of atmospheric presence of the vehicle and the vehicle system was implemented.

      • 데이빗 트레이시(David Tracy)의 신학적 언어로서의 유비적 상상력(analogical imagination)

        노영상 국제기독교언어문화연구원 1997 기독교언어문화논집 Vol.1 No.-

        Yong Sang No. 1997. Analogical Imagination As the Theological Language of David Tracy- Collected Papers on Christian Language Culture. David Tracy, a American theologian, who teaches in Chicago University, suggests analogical imagination as a theological language for this pluralistic situation. He, as a revisionist theologian, says that theology has to be built up by public discourse in order that nonchristians amy understand it. He embraces both the liberal theology emphasizing human experience and the neo-orthodox theology emphasizing divine revelation into his theology of analogical imagination. His analogical language includes similarities-in difference and radical dissimilarity-in- similarity as a dialectical phase. This analogical vision makes the conversation with others possible. He developed conversation theory from the foundation of the comtemporary hermeneutics.(Ho Nam theology seminary)

      • Poly(2-Hydroxyethyl Methacrylate-co-2-Methacryloxyethyl-1,1,1-Trifluoroacetate)의 합성 및 물성에 관한 연구

        성용길,성대경 동국대학교 1987 論文集 Vol.26 No.-

        Swollen or unswollen synthetic polymeric films are suitable for separation techniques such as hyperfiltration, ultrafiltration, dialysis, electrodialysis, and piezodialysis. They have also found major uses in biomedical problems(artificial kidney membranes, etc.), enzyme related processes, ion-exchange, dental and pharmaceutical applications(controlled release system). Poly (2-hydroxyalkyl methacrylate)s are being considered as useful materials for various membranes and medical applications. The radical copolymerization of 2-hydroxyethyl methacrylate (HEMA) with 2-methacryloxyethyl-1, 1, 1-trifluoroacetate (METFA) has been investigated to understand their reactivities and to improve the physical properties of homopolymer. The monomer METFA was synthesized by esterification of 2-hydroxyethyl methacrylate with 1,1,1-trifluoroacetic acid(TFA). Azobisisobutyronitrile (AIBN) was used as an initiator in the radical copolymerization of HEMA with METFA. The compositions of unreacted monomers were determined by the intensity of each peak by gas chromatographic analysis. The monomer reactivity ratios were determined by Kelen-Tu¨do~s method. The values of the reactivity ratios are r_1=2.35 and r_2=0.21 for the HEMA(1)-METFA(2) system. The values of Q and e factors calculated by Alfrey-Price equation are 0.29 and-0.64, respectively. The characterization of the copolymers has been carried out by FT-IR spectrophotometer and thermal analysis techniques. The thermal stability and melting temperature(Tm) of the copolymers were increased, as the amounts of hydrophilic HEMA in the copolymers increased. The enthalpic changes associated with endothermic transition were evaluted by differential scanning calorimetry. The activation energies of poly (HEMA-co-METFA) were evaluated from the thermogravimetric data by Freeman and Carroll method. The equilibrium water swelling quantities of the homopolymers and copolymers are also measured and discussed on the basis of hydrophobicity and hydrophilicity.

      • 영상의학 진단검사 서비스 이용자의 만족도에 영향을 미치는 요인

        신성규,유병철,이용환 고신대학교 의과대학 2009 고신대학교 의과대학 학술지 Vol.24 No.1

        Background : To assess the influencing factors of patients satisfaction on service of diagnostic radiology and to recommend for the improving method of patients satisfaction on service of diagnostic radiology. Methods : We conducted a SERVQUAL questionnaire survey during the period from January 2008 till August 2008. The data was collected from questionnaires filled out by 289 patients visiting at 4 tertiary and 5 secondary hospitals located in Busan Metropolis City. Collected data were analyzed descriptive analysis, t-test, one-way ANOVA and multiple regression analysis using SAS Win(ver 9.0k) program. Results : The mean score of patient's satisfaction on diagnostic radiology was -0.01±0.50 and empathy as subcategory of SERVQUAL was only positive satisfaction(0.10±0.72). Patient's satisfaction on diagnostic radiology was high in admission experienced group, operation experienced group and medical administration satisfaction group, respectively. Patient's satisfaction on diagnostic radiology was influenced by appointment of diagnostic radiology examination and satisfaction of medical administration. Conclusion : This study show that patient of diagnostic radiology experienced dissatisfaction and the influencing factors of patient's satisfaction on diagnostic radiology were appointment and satisfaction of medical administration. In order to improve patient's satisfaction of diagnostic radiology, more exact appointment system and advanced medical administration support were needed in the hospital organization.

      • KCI등재

        신경회로망을 이용한 가공조건에 따른 원형가공 표면거칠기 평가

        성백섭,김일수,차용훈 한국산업안전학회 2002 한국안전학회지 Vol.17 No.1

        The purpose of this study was to present the method to choose the optimization machining condition for the wire electric machine. This was completed by examining the ever-changing quality of the material and by improving the function of the wire electric discharge machine. Precision metal mold products and the unmanned wire electric discharge machining system were used and then applied in industrial fields. This experiment uses the wire electric discharge machine with brass wire electrode of 0.25mm. To measure the precision of the machining surface, average values are obtained from 3 samples of measures of center-line average roughness by using a third dimension gauge and a stylus surface roughness gauge. In this experiment, we changed no-node voltage to 7 and 9, pulse-on-time to 6㎲, 8㎲ and 10㎲, pulse-off-time to 8㎲, 10㎲ and 13㎲, and experimented on wire tension at room temperature by 1000gf, 1200gf and 1400gf, respectively.

      • SCOPUSKCI등재

        헬리코박터 파이로리 균 진단용 ^13C-요소 캅셀의 개발

        용철순,김용일,김지만,강성훈,권기철,이종달,김종국,사홍기,최한곤 한국약제학회 2002 Journal of Pharmaceutical Investigation Vol.32 No.1

        The purpose of this study was to develop a new ^13C-urea- containing capsule for diagnosis of H. pylori. The urea-containing capsules were prepared with various diluents such as polyethylene glycol (PEG), microcrystalline cellulose, sodium lauryl sulfate and citric acid. The dissolution test, ^13C-urea breath test and stability test were then performed on the capsules. Microcrystalline cellulose and sodium lauryl sulfate retarded the initial dissolution rates of urea. However, PEG increased the initial dissolution rates of urea. Furthermore, two formulae composed of PEG, [^13C-urea/PEG (38/1.9 mg/cap)] and [^13C-urea/PEG/citric acid (38/1.9/1.9 mg/cap)] had the maximum DOB value, about 16 at 20 mim, while the formula composed of only 38 mg ^13C-urea had the maximum DOB value at 30 min. The results indicated that PEG improved the sensitivity of ^13C-urea in the human volunteers. The capsule [^13C-urea/PEG (38/1.9 mg/cap)] was stable for at least six months in 25 and 37℃. Thus, a PEG-containing capsule, [^13C-urea/PEG (38/1.9 mg/cap)] would be a more economical, sensitive and stable preparation for diagnosis of H. pylori.

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