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한국 공공구강보건의료의 정의 및 역할에 대한 구강보건의료분야 전문가 인식도
이용진 ( Yong-jin Lee ),이나래 ( Na-rae Lee ),정윤숙 ( Yun-sook Jung ),이민 ( Min Lee ),정회인 ( Hoi-in Jung ),최연희 ( Youn-hee Choi ) 대한예방치과·구강보건학회 2023 大韓口腔保健學會誌 Vol.47 No.4
Objectives: The importance of public healthcare has been further emphasized by the arrival of the era of super-aged societies. This study investigates the landscape among oral health professionals, focusing on the concept development of the public oral health care (POHC) and essential oral health care (EOHC). Methods: A questionnaire survey of oral health professionals was conducted at six associations or societies who have an interest in POHC from December 21 to December 29, 2022. Chi-squared and logistic regression analyses were adopted to identify significant differences between the responses according to general characteristics. Significant differences were considered at a P -value of 0.05. Results: A total of 100 oral health professionals (48 dentists and 52 dental hygienists) participated in this study. The results revealed that there is a need for improvement of the POHC and the establishment of concepts related to the POHC and EOHC. The agreement rate was 90%, 85%, and 86% for the responsible organization, the target object and field, and the concept in the definition of the POHC, respectively. In the case of the construction of the EOHC, the agreement rate was 91% for “Quality of life,” and 85% for “Life and safety.” Among the community oral health programs as the POHC programs, “Oral health education program” showed the highest agreement rate. In healthcare institutions that are capable of providing the POHC services, “Oral health center in the public health center” had the highest agreement rate. Conclusions: The POHC would be reasonable to define to ensure universal access to oral healthcare services for all citizens. In the case of EOHC, further research is needed to establish terminology and specific concepts in the future. This study could contribute valuable insights to the field of the POHC in an era of super-aged societies. As further research, more oral health professionals need to participate in the POHC-related policy and health care system.
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블레이드 팁의 Groove 형상이 터빈 캐스케이드 팁 열전달 계수분포에 미치는 영향에 대한 실험적 연구
노영철(Young Cheol Nho),조용화(Yong Hwa Jo),이용진(Youn Jin Lee),김학봉(Hark-Bong Kim),곽재수(Jae Su Kwak) 한국추진공학회 2010 한국추진공학회 학술대회논문집 Vol.2010 No.5
본 연구에서는 팁 형상이 가스터빈 블레이드의 팁 열전달에 미치는 영향을 알아보기 위하여 선형 캐스케이드의 블레이드에 설치된 평면 팁, 스퀼러 팁, Groove 팁들에 대하여 열전달 계수가 측정되었다. 블레이드 팁에서의 열전달 계수는 색상검출방식에 기반을 둔 천이액정법을 이용하여 측정되었으며 각각의 팁 형상에 대하여 팁 간극은 블레이드 스팬의 1.5%와 2.3%로 변경 하에 실험을 수행하였다. 캐스케이드 출구 속도와 블레이드 코드길이에 기초를 둔 Reynolds 수는 2.48×10<SUP>5</SUP> 이다. Groove 팁 표면에서의 열전달 계수는 평면 팁보다 낮게 측정되었으며, 특히 흡입면을 따라 경사진 홈이 파인 팁에서는 스퀼러 팁보다 낮은 열전달 계수가 측정되었다. In this study, the conventional plane tip, double squealer tip, and various groove tip blades were tested in a linear cascade in order to measure the effect of the tip shapes on tip surface heat transfer coefficient distributions. Detailed heat transfer coefficient distributions were measured using a hue-detection based transient liquid crystals technique. Two tip gap clearances of 1.5% and 2.3% of blade span were investigated and the Reynolds number based on cascade exit velocity and chord length was 2.48×10<SUP>5</SUP>. Results showed that the overall heat transfer coefficients on the tip surface with various grooved tips were lower than those with plane tip blade. The overall heat transfer coefficient on grooved along suction side tip was lower than that on the squealer tip.
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정홍,최승진,정민화,박기윤,허희수,이용진 한국뇌학회 2003 한국뇌학회지 Vol.3 No.1
인간의 생물학적 청각정보 처리와 대뇌에서 일어나는 능동적 추론과정에 기초하여 실시간 음성 인식 성능을 향상한다. Non-negative Matrix Factorization(NMF)과 Principle Component Analysis(PCA)를 이용한 음성 정보 표현과 특징 추출 그리고 차원 축소에 관한 방법을 제시하고 효율적으로 메모리를 구성하기 위해 기존의 최적화된 정적 네트워크를 동적으로 운영하는 방법인 대어휘 연속음성 인식용 반-동적 네트워크 디코더를 소개한다. 연속음성 인식시스템의 인식률을 향상하기 위해 형태소와 어절의 생성규칙을 확률적으로 모델링하여 두 단계의 작업을 동시에 처리하기 위한 재귀적 계산구조를 제안한다. We improved speech recognition performance based on biological human auditory information processing and active reasoning in the brain. First we suggest feature extraction and data dimension reduction for speech signal using Non-negative Matrix Factorization(NMF) and Principal Component Analysis(PCA). Then we propose a semi-dynamic network decoding framework for large vocabulary continuous speech recognition(LVCSR) that can handle an optimized static search network dynamically. Finally we propose an integrated recursive computation structure that model generating rule of morpheme and a Korean word, called Eojeol. using probability for continuous speech recognition.
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