http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 박중희(Joong-Hee Park) (검색결과 6 건)
- 무료
- 기관 내 무료
- 유료
-
오염된 임프란트 표면의 해독 방법에 따른 내독소 제거 효과에 관한 연구
박중희,임성빈,Park, Joong-Hee,Lim, Sung-Bin 대한치주과학회 2004 Journal of Periodontal & Implant Science Vol.34 No.1
Peri-implantitis could be the result of biomechanical and occlusal overload as well as microbiologic invasion. The dental implant may be more susceptible to dental plaque than the natural tooth, as the predictability of a stable soft tissue attachment complex has not yet been confirmed. With the development of peri-implantitis, the implant surface would be exposed to the oral environment and becomes coated with bacteria. The objective of therapy for this condition is to regain integration of the implant with bone. Since fibroblast adherence to surfaces is impeded by endotoxin, it would seem that decontamination would be desirable to obtain maximum osseointegration. The purpose of this study was to determine whether various chemotherapeutic and mechanical treatments(distilled water, air-powder abrasive, hypersaturated citric acid, tetracycline) can detoxify contaminated titanium implant surface by means of kinetic LAL test. Experimental rough surface titanium disks were fabricated. All of them were divided into two groups(A.a group and P.g group) and each contaminated by A. actinomycetemcomitans and P. gingivalis suspension. Contaminated disks were treated with distilled water, air-powder abrasive, citric acid and tetracycline, and then all disks were placed into LPS-free water for elution. The results were as follows : 1. In A.a group, LPS elute level of all test groups were significantly lower than control group(p<0.05). 2. In A.a group, LPS elute level of test 2, test 3 and test4 groups were significantly lower than that of control group(p<0.05). But, among the test 2, test 3, test4 groups, the significant differences were not detected. 3. In P.g group, LPS elute level of test 2, test 3 and test 4 groups were lower than that of control group(p<0.05). But, among the test groups, the significant differences were not detected. From the result of this study, it would be concluded that air-powder abrasive, hypersaturated citric acid and tetracycline treatments may be effective at reducing endotoxin level on rough titanium implant surfaces, and can be clinically used. But the treatments in peri-implantitis differentially impact osseointegration making one method clinically superior. To gain this knowledges, further molecular biologic and histopathologic studies should be developed.
-
초산균 발효에 의한 베리 농축액의 항산화 활성 증진 효과
박중희(Joong-Hee Park),권훈주(Hun-Joo Kwon),권덕호(Deok-Ho Kwon),박재범(Jae-Bum Park),남희섭(Hee-Sop Nam),이도엽(Do Yup Lee),이수한(Su-Han Lee),이용진(Yong-Jin Lee),김명동(Myoung-Dong Kim),하석진(Suk-Jin Ha) 한국생물공학회 2017 KSBB Journal Vol.32 No.3
Antioxidant activities of blackberry juice and aronia juice were enhanced when fermentation was performed by acetic acid bacteria. Acetobacter pasteurianus exhibited 19.84% improvement of antioxidant activity (from 198.12 ± 2.03 to 237.42 ± 7.32 μmol TE/g) after 12 h fermentation of blackberry juice among four acetic acid bacteria. And A. pasteurianus sub sp. Pasteurianus exhibited 9.62% improvement of antioxidant activity (from 204.25 ± 3.98 to 223.89 ± 5.52 μmol TE/g) after 12 h fermentation of aronia juice. Metabolites of blackberry juice were analyzed to investigate the enhancement of antioxidant activity before and after fermentation. As results, Quercetin 7-(rhamnosylglucoside), nicotinic acid adenine dinucleotide, and quercetin 3-O-(6”-acetyl-glucoside) were significantly increased after fermentation by A. pasteurianus.
-
감정별 음성분석을 통한 인공지능 TTS 도구들의 감정발화를 구분 짓는 SSML 문법 요인 설계
박중희(Joong-Hee Park),한광희(Kwang-Hee Han) 한국콘텐츠학회 2023 한국콘텐츠학회논문지 Vol.23 No.12
본 연구는 TTS와 성우의 감정 음성을 비교한 후, TTS 음성합성에 필요한 SSML의 각 요인을 감정 요소에 맞게 분류하고, 감정표현에 필요한 요인이 무엇인지 알아보았다. 인공 지능 허브(aihub)의 성우 데이터와 SSML을 적용하여 제작한 TTS 음성을 이용하여 분석한 결과, 서사를 적용한 감정분류과제에서는 놀람(47.2%), 혐오(44.4%), 행복(44.4%)의 감정이 정확도 면에서 높게 나타났다. 다차원척도법으로 각 감정의 위치를 분석한 결과 x축은 음높이(pitch), 주파수변동률(Jitter)이 주요인이었고, y축으로는 음크기변화인 진폭변동률(shimmer)과 말의 속도, 배음 간 잡음비(NHR)가 주요인이었다. 비서사적 감정 음성에 대한 청자들의 심리적 평가결과 Perfect Confirm, Error-Confirm, Correct Confuse, Error Confuse그룹으로 분류하였으며, 그 결과 완벽한 분류를 나타내는 Perfect Confirm이 높은 감정 오디오 데이터는 슬픔(63.89%), 중립(52.78%) 순으로 나타났다. SSML를 이용한 감정제어에서 중요한 요소는 포먼트주파수, 음높이(pitch), 음의 길이(Duration), 주파수변동률(Jitter), 진폭변동률(shimmer), 배음 간 잡음비(NHR)이었다. 따라서, 청자들의 지각 요소와 음향학적 특징을 모두 고려한 TTS에 대한 SSML의 설계는 인공지능 TTS제작시 비용을 줄여주는 음성 활용 시스템 개발에 도움을 줄 것으로 기대한다. This study compared the emotional speech of TTS and voice actors, classified each factor of SSML required for TTS speech synthesis according to the emotional factor, and investigated what factors are required for emotional expression. Using voice actor data from the Artificial Intelligence Hub (aihub) and TTS voices produced by applying SSML, the results showed that the emotions of surprise (47.2%), disgust (44.4%), and happiness (44.4%) were highly accurate in the narrative emotion classification task. When analyzing the location of each emotion using a multidimensional scale, pitch and frequency fluctuation (jitter) were the main factors on the x-axis, and amplitude fluctuation (shimmer), speech rate, and noise-to-noise ratio (NHR) were the main factors on the y-axis. The listeners psychological evaluation of non-narrative emotional speech was classified into Perfect Confirm, Error-Confirm, Correct Confuse, and Error Confuse groups, and as a result, the emotional audio data with high Perfect Confirm, which indicates perfect classification, were sad (63.89%) and neutral (52.78%). The important factors for emotion control using SSML were formant frequency, pitch, duration, jitter, shimmer, and inter-tone noise ratio (NHR). Therefore, the design of SSML for TTS that considers both perceptual factors and acoustic features of listeners is expected to help develop a speech utilization system that reduces the cost of AI TTS production.
-
-
실시간 리눅스 기반의 회전익 무인항공기 제어 소프트웨어 개발
박기석 ( Kiseok Park ),박중희 ( Joong Hee Park ),위영준 ( Young Jun Wie ),박정근 ( Jungkeun Park ),문창주 ( Chang Joo Moon ) 한국정보처리학회 2010 한국정보처리학회 학술대회논문집 Vol.17 No.2
본 논문은 실시간 운영체제인 Xenomai 를 사용하여, 회전익 무인항공기 소프트웨어 개발에 대한 내용을 설명하고 있다. 실시간 운영체제 사용하여 고정 순위 우선 스케줄링을 채택함으로써 데드라인의 타이밍(Timming) 결정성을 보장하였고, 이기종 시스템과의 호환성과 확장성을 고려하여 POSIX API 를 사용하여 멀티 쓰레드를 구현하였다. 또한 실시간 드라이버 모델(RTDM : Real-Time Driver Model)을 사용하여 획득한 데이터를 실시간 전송이 가능하도록 하였다. 본 논문은 실시간 운영체제를 무인항공기에 적용하고 구현된 비행제어 컴퓨터와 제어 소프트웨어를 비율 단조 스케줄링을 적용하여 무인항공기의 쓰레드들의 응답 속도 및 안정성을 보장하는 방안을 제시하였다.
-
ScienceON
DBpia연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
