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한국어 고립 단어 음성의 자음/모음/유성자음 음가 분할 및 인식에 관한 연구
이준환,이상범,Lee, Jun-Hwan,Lee, Sang-Beom 한국정보처리학회 2000 정보처리논문지 Vol.7 No.6
For the Korean language, on acoustics, it creates a different form of phonetic value not a phoneme by its own peculiar property. Therefore, the construction of extended recognition system for understanding Korean language should be created with a study of the Korean rule-based system, before it can be used as post-processing of the Korean recognition system. In this paper, text-based Korean rule-based system featuring Korean peculiar vocal sound changing rule is constructed. and based on the text-based phonetic value result of the system constructed, a preliminary phonetic value segmentation border points with non-uniform blocks are extracted in Korean isolated word speech. Through the way of merge and recognition of the non-uniform blocks between the extracted border points, recognition possibility of Korean voice as the form of the phonetic vale has been investigated.
Wavelet 특징 파라미터를 이용한 한국어 고립 단어 음성 검출 및 인식에 관한 연구
이준환,이상범,Lee, Jun-Hwan,Lee, Sang-Beom 한국정보처리학회 2000 정보처리논문지 Vol.7 No.7
In this papr, eatue parameters, extracted using Wavelet transform for Korean isolated worked speech, are sued for speech detection and recognition feature. As a result of the speech detection, it is shown that it produces more exact detection result than eh method of using energy and zero-crossing rate on speech boundary. Also, as a result of the method with which the feature parameter of MFCC, which is applied to he recognition, it is shown that the result is equal to the result of the feature parameter of MFCC using FFT in speech recognition. So, it has been verified the usefulness of feature parameters using Wavelet transform for speech analysis and recognition.
오적산합생맥산(五積散合生脈散)으로 호전된 위식도 역류에 의한 만성기침 환자 3례
이준환,방연희,김재효,도하윤,김관일,정희재,이범준,Lee, Jun-Hwan,Bhang, Yeon-Hee,Kim, Jae-Hyo,Do, Ha-Yoon,Kim, Kwan-Il,Jung, Hee-Jae,Lee, Beom-Joon 대한한방내과학회 2017 大韓韓方內科學會誌 Vol.38 No.4
Objectives: Gastro-esophageal reflux-induced chronic cough is not easy to diagnose and treat. In this study, three patients diagnosed with this disease were treated with Ojeok-san plus Saengmaek-san. Methods: Three patients with chronic cough, suspected to be gastro-esophageal and reflux-based, were diagnosed according to symptoms and abdominal examinations. They were treated with the herbal medicine, Ojeok-san plus Saengmaek-san. To evaluate the effectiveness of the treatment, a visual analogue scale (VAS) for measuring the severity of a cough and the Korean version of the Leicester Cough Questionnaire (LCQ-K) were used to determine the patients' quality of life. Results: After administration of Ojeok-san plus Saengmaek-san, the severity of the patients' coughing decreased based on VAS scores and quality of life improved based on LCQ-K scores for all patients. Conclusions: Ojeok-san plus Saengmaek-san is a potent therapeutic agent for gastro-esophageal reflux-induced chronic cough.
이준환,차준호,조용식,Lee. Jun-Whan,Cha. Jun-Ho,Cho. Yong-Sik 한국방재학회 2014 한국방재학회논문집 Vol.14 No.4
오랜 시간동안의 인접한 두 수중구조물 사이 퇴적 작용은 수중구조물의 성능을 감소시켜 해안 도시 안전에 위협을 가할 수 있다. 본 연구에서는 다열 수중구조물 사이 불투과성 퇴적지형에 의한 파랑의 반사율을 고유함수전개법을 이용하여 해석하였다. 경사를 표현하는데 필요한 구간의 수와 반사율 계산에 필요한 소멸파 성분의 수를 제안하였으며 기존 결과와 비교하였다. 다열 수중구조물 사이 퇴적양상, 퇴적 양에 따른 성능 변화와 퇴적에 따른 Bragg 반사 특성 변화를 살펴보았다. 퇴적지형이 다열 수중구조물 성능에 영향을 주는 것을 확인하였다. 그러므로 다열 수중구조물 설계 시, 퇴적에 의한 성능 변화를 고려해야하다. The deposition between the two adjacent submerged structures over a long time can decrease the roles of structures and also threaten the safety of the coastal communities. In this study, the reflection of the incident water waves caused by deposition among multi-arrayed submerged structures are investigated by using the eigenfunction expansion method. The proper number of the steps representing a slope and the evanescent modes for calculating the reflection coefficient was suggested, and the resulting reflection coefficients were compared with the previous results. Not only the performance change due to difference styles of deposition and the amount of deposition between multi-arrayed submerged structures, but also the characteristic changes in the Bragg reflection caused by the deposition were studied. We found that the depositional topography affects the performance of multi-arrayed submerged structures. Thus, when designing multi-arrayed submerged structures, we have to consider the performance change by deposition.