후두 스트로보스코프 검사의 신호 동기화를 위한 진동 검출기의 유용성

이진춘,이병주,왕수건,노정훈,권순복,조철우,Lee, Jin-Choon,Lee, Byung-Joo,Wang, Soo-Geun,Roh, Jung-Hoon,Kwon, Sun-Bok,Jo, Cheol-Woo 대한후두음성언어의학회 2007 대한후두음성언어의학회지 Vol.18 No.1

Objective and Background: Laryngeal stroboscope is an useful equipment in evaluation of vocal cord vibration and in early detection of mucosal lesion including invasive cancer of the vocal cord. Recently Lee et al. (2006) developed portable stroboscope using voice as synchronization signal. It has been frequently impaired ability to synchronize the flashes even in normal female. Authors tried to investigate various methods including vibration pick-up, microphone, laryngeal microphone, and contact microphone for development of simple and accurate method like electroglottograph signal. The purpose of this study was to estimate wheher the vibration pick-up is available and is consistent with the signal of EGG. Subjects and Methods: Authors compared the signals between EGG and noncontact method such as voice, contact methods including vibration pick-up, laryngeal microphone, and contact microphone in normal twenty adults (male 10 and female 10). The number of peak in one cycle was compared with the number of the peak in EGG, and the percent of phase difference in the peak was compared with EGG Also, authors tried to investigate which site of vibration pick-up was most effective for synchronization of stobo flashes. Three site including anterior neck below the cricoid cartilage, thyroid ala, and suprahyoid region were analysed. Results: Among various methods for synchronization of strobo flashes, vibration pick-up was most effective method in peak detection. And anterior neck below cricoid cartilage was the most available site of the vibration pick-up. Conclusion: Authors suggest that vibration pick-up is most available and effective method for synchronization of strobo flashes.

성대진동검사의 최신 지견

이진춘,배인호,Lee, Jin-Choon,Bae, Inho 대한후두음성언어의학회 2021 대한후두음성언어의학회지 Vol.32 No.1

Human vocal cords vibrate as quickly as 100-250 times per second, so it is impossible to observe them with normal endoscopic diagnostic equipment. High-speed videolaryngoscopy (HSV) allows the visualization of non-periodic vibratory motion of vocal fold beyond the limitation of videostroboscopy. New developed post-processing methods that converts HSV to two-dimensional videokymography (2D VKG) using U-medical image-processing software can provide quantitative information on vocal fold mucosa vibration. Multifunctional laryngeal examination system is composed of 3 kinds of examinations such as HSV, 2D scanning digital kymography (2D DKG) and line scanning digital kymography (DKG). Evaluation of entire vocal cord vibratory pattern in each cord is possible using 2D DKG and a faster and more reliable quantitative information can be obtained. As this system is used in clinical and research, it is expected to bring much advances to the diagnosis of voice disorders. In this review, I will introduce the principles and advantages on examination of the vocal fold vibration, which is in the spotlight recently, and proceed with the literature review.

중소기업의 품질경영에서 학습촉진요인과 TQM실행 요인의 영향관계 : ISO인증 중소기업을 중심으로

이진춘 ( Jin Choon Lee ),이상진 ( Sang Jin Lee ) 한국중소기업학회 2007 中小企業硏究 Vol.29 No.4

AMOS를 이용한 교육품질요인의 인과관계 분석

이진춘(Lee, Jin-Choon),이홍우(Lee, Hong-Woo),백선숙(Baek, Sun-Sook) 한국경영교육학회 2003 경영교육연구 Vol.30 No.-

대구지역 기계 금속산업의 경영실태와 발전방안

이진춘(Lee Jin Choon),유갑종(Riu Kap Jong),김병하(Kim Byung Ha) 한국중소기업학회 1997 中小企業硏究 Vol.19 No.2

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스마트폰의 사용 용이성과 유용성이 전환장벽과 고객충성도에 미치는 영향

이진춘(Jin-Choon Lee) 한국산업정보학회 2011 한국산업정보학회논문지 Vol.16 No.5

본 연구는 한국이동통신시장에서 새로운 제품과 서비스인 스마트폰이 도입됨에 따라 용이성과 유용성이 전환장벽, 고객만족과 고객충성도에 미치는 영향을 분석하는데 초점을 두었다. 본 연구는 용이성을 외생변인으로 하고, 유용성, 전환장벽, 고객만족과 고객충성도를 내생변인으로 하여, 변인 간의 영향관계를 파악하는 구조방정식모형을 설계하였다. 본 연구에서는 기술수용 모형에서 유래한 용이성과 유용성을 도입하여 품질과 고객만족 관계를 연결하여 그 영향관계를 분석하였다. 본 연구에서는 스마트폰의 사용 용이성과 유용성이 미치는 영향관계 경로를 6개 가설로 구축하여 검정하였다. 가설검정을 위해서 452명을 대상으로 설문조사를 실시하여 자료를 수집 하였으며, AMOS19와 SPSS19를 이용하여 실증분석을 하였다. 검정결과는 다음과 같다. 첫째, 스마트폰 용이성과 유용성은 전환장벽에 유의한 영향을 미치고 있었다. 둘째, 용이성은 유용성에 유의한 영향을 미치고 있으며, 셋째, 유용성은 고객만족에 유의한 큰 영향을 주고 있었다. This study focused on analyzing the effects of ease of use, usefulness on switching barrier and loyalty in the Korean telecommunication market. This study formulated a structural equational model, in which ease of use was adapted as an exogenous variable and in which usefulness, switching barrier were included as intermediate variables, having influences to the endogenous variable such as customer satisfaction and loyalty. In this study 6 hypotheses had been formulated, on which this research model was based, in order to test the significance of structured paths, suggested, in the previous articles, that having high interactive effects. This study collected the effective questionnaires of 452 respondents who had jobs nationwide and who used the telecommunication terminals and then analyzed with AMOS19 and SPSS19 to test the hypotheses. As a result, the conclusions are as follows: First, the ease of use and usefulness had significant effects on the switching barrier. Secondly, ease of use had a significant effect on the usefulness of customers, by which customers’satisfaction was influenced at low significant level. After all, the effects of ease of use and usefulness on switching barrier and satisfaction of the users of smart phones had been shown at the highest level.

교육품질이 학교 브랜드 이미지에 미치는 영향 -대구지역 고등학교를 중심으로-

이진춘 ( Jin Choon Lee ),천상은 ( Sang Eun Cheon ),홍성일 ( Seong Il Hong ) 대한설비관리학회 2009 대한설비관리학회지 Vol.14 No.1

대응분석법을 이용한 자동차 전면부 디자인 적합도 평가

이진춘(Jin -Choon Lee) 한국의사결정학회 2007 의사결정학연구 Vol.15 No.1

This paper is concerned with analyzing the images of Korean automobiles using, so called, sensory engineering, which adapts the sensory and subjective assessment of human beings in evaluating the quality of product. The images of the object automobiles are measured by the coordinate of all the object automobiles in the image space. A test for image matching is also performed for the volunteered panel and is analyzed by the correspondence analysis. In this paper, a sensory estimation experiment is performed to a panel consisting with 81 undergraduate students residing in the region of Daegu. From the result of analysis of this paper, target images, which the automobile manufacturers are intended, are achieved by and large.

교육품질이 학교브랜드 이미지와 학교성과에 미치는 영향 : 포항시 인문계고교를 중심으로

이진춘(Jin-Choon Lee) 한국의사결정학회 2009 의사결정학연구 Vol.17 No.1

본 연구는 교육품질이 학교 브랜드이미지와 학업성취도와 만족도 같은 성과에 어떠한 영향을 미치는가를 실증적으로 분석한 연구이다. 본 연구는 교육품질을 교육서비스품질과 교육환경품질의 2개 요인으로 나누었다. 그리고 학교브랜드 이미지를 도출하여 교육품질과의 관련성을 분석하였고, 같은 맥락에서 학교만족도와 학업성취도와 같은 변수와의 관련성도 분석하였다. 또한 본 연구에서는 앞에서 설명한 요인들인 잠재변인들 간의 관계를 검정하기 위해 구조방정식모형을 채택하였다. 이 방법은 잠재변인들 간의 관계를 분석하는데 대단히 타당하고 합리적이다. 실증조사를 위해, 포항지역 17개 인문계고등학교 413명의 학생을 설문조사하여 응답을 받고, AMOS17을 이용하여 처리하였다. 결론적으로, 교육서비스품질은 학교브랜드 이미지를 고양하는데 상위권 명문고교에서는 더 중요하였고, 반면에 교육환경품질이 하위권 학교에는 더 중요한 것으로 나타났다. 이러한 결과로부터 포항지역의 학교들은 학교브랜드 이미지를 높이는 방안을 수립할 수 있을 것이다. This study tried to survey empirically how education quality influenced to school brand image and its performance, such as, academic achievement and satisfaction. In this study, the quality of education is divided into two sub-factors, in view of the dimension of software and hardware, such as quality of education service and quality of education environment. Then indicators of school brand image had been extracted to test the relationship with the education quality. Also this study extracted the factors of the school satisfaction and the academic performance in the same context. Also, in this study, in order to test the relationship among latent variables such as the factors suggested above. structural equation modelling is adapted. It is very rational and valid to analyze the relationship among latent variables in order to maintain the analysis level of constructed concepts. For empirical survey, 413 responds of 17 schools in Pohang region, were collected and then analyzed by using AMOS, which had a good reputation of usefulness and convenience. Concludingly, the quality of education service was more important and effective factor to the school brand image in the upper group, so called distinguished schools. In the other hands, the quality of education environment was more important than that of education service in the lower group, so called undistinguished schools. From these results, a plan for the high school in Pohang region to establish the school brand image could be formulated.

의미변별법을 이용한 스마트폰 제품의 이미지변동 평가

이진춘(Lee, Jin-Choon),오태원(Oh, Tai-Won) 한국의사결정학회 2015 의사결정학연구 Vol.23 No.2

본 연구는 제품에 대한 개인의 주관적 이미지를 평가하기 위해 감성공학에서 사용하는 의미변별법을 이용하여 스마트폰의 이미지를 평가한다. 최근 스마트폰의 판매량은 제품의 성능에 의해 영향을 받는 것이 아니라 제품 디자인에 의해 영향을 받음에 따라 스마트폰의 이미지는 제품의 판매량에 큰 영향을 끼치는 중요한 요인이 되었다. 본 연구에서는 스마트폰의 이미지를 평가하기 위해서, 전문가 패널들이 도출한 형용사 집합으로부터 이미지를 구성하는 요인들을 추출하기 위해 요인분석법을 이용하였다. 요인분석법의 결과로 얻은 요인점수를 이용하여 형용사집합들이 규정하는 이미지 공간에서의 좌표를 평가한다. 결론적으로 본 연구에서 평가한 스마트폰의 이미지는 일반적인 목표 스마트폰의 판매량과 일치하였다. 따라서 본 연구에서 사용한 의미변별법을 이용한 평가가 스마트폰의 판매량에 영향을 주는 요인변화를 설명함을 알 수 있다. This tried to analyze the image of smarphones using a semantic differential method which is used in the sensory engineering in order to evaluate the personal subjective image of a product. Recently as sales volume of smarphones is not influenced by functional performance but by product design, smartphone images become to be an important factor that has a tremendous effect to the sales volume. In this study, in order to evaluate the smartphone image, factor analysis is adapted in order to extract the image components from the adjective sets derived by expert panels. From the output of factor analysis, factor score is used to assess the coordinate of the object smartphones in the image space specified by the adjective sets. Concludingly, the images of smarphnones evaluated in this study is, generally, coincided with the sales volumes of tageted smartphones. Therefore, the evaluation by the semantic differential method used in this study can explain the described changes in the factors that affect the sales volume of the smart phone.