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서정파,권영헌,이건상 한양대학교 이학기술연구소 2002 이학기술연구지 Vol.4 No.-
We proposed correlation exponent as feature vector of speaker recognition system aming the persons whose voices are much the same with each other. The ambiguity of speech utterance can be regarded as a chaotic property. For speakers whose voices appear to be nearly identical, with their vowel /i/ that is more chaotic than /a/,/e/,/o/, or /u/ was tested. since chaos which is sensitive to a noise, a reduction is necessary. We eliminate the noise by local projective noise reduction method and compare the behavior of the attractors of original speech and noise reduced speech. 본 논문에서는 발음이 매우 유사한 사람들 간의 화자 인식 시스템 구현을 위한 feature vector로써 correlation exponent의 사용을 제안하였다. 음성의 발성적 모호함을 chaos적인 특성으로 간주하고 formant 특성이 거의 동일하게 나타나는 화자들에 대해 모음 /i/ 발음을 채집하였다. 잡음에 민감한 카오스의 correlation exponent를 구하기 위해서는 선행적으로 잡음제거가 필수적이다. 이를 위해서 비선형 방법으로 잡음을 제거하고 잡음제거전의 각 화자들의 attractor를 비교하였다.
김동권,이수복,하종욱,김정훈,박인준 한국공업화학회 2003 응용화학 Vol.7 No.2
Perflurorourethane copolymers were stnthesized by free-radical copolymerization using a fluorine-containing monomer and urethane monomers as starting materials. The fluorine-containing monomer used was perfluoroalkyl alcohol(FOH), and the urethane monomers used were tolylene 2,4-diisocyanate(TDI), hexamethylene diisocyanate(HDI), and 4,4-methylene bis(phenyl isocyanate)(MDI). The surface properties and surface modification ability of the perfluorourethane copolymers prepared were investigated. The surface free energies of polyethylene(PE) films modified by the perfluorourethane copolymers and their surface modifkcation properties were also investigated.
李相勳,權貞南,李仁仙 동의대학교 한의학연구소 1997 동의한의연구 Vol.1 No.-
Infertility, delayed menstrual cycle, amenorrhea and abortion are frequents gynecology disease which my patients have. These disease cause and effect relation. They are classified types by dificiency of the kidney(腎虛), stagnation of qi(氣滯), dificiency of qi and blood(氣血虛弱), damp phlegm(濕痰) and blood stasis(血瘀). I made the administrative survey for oriental gynecology after I esearched types of menstrual symptom, digestive symptom, stool symptom, urine symptom and general symptoms. In conclusion, I made fundamentals of a verity of analysis. I expect the treatment range of oriental gynecology is expended and treatment generation is made by the survey.
카오스 해석법을 이용한 전방십자인대 재건수술 환자와 정상인의 보행연구
고재훈(Jae Hun Ko),손권(Kwon Son),박정흥(Jung Hong Park),서정탁(Jeung Tak Suh) Korean Society for Precision Engineering 2006 한국정밀공학회지 Vol.23 No.2
Anterior cruciate ligament(ACL) injury of the knee is common and a serious ACL injury leads to ligament reconstruction surgery. Gait analysis is used to identify the result of surgery. The purpose of this study is to numerically evaluate and classify knee condition of patients through the chaos analysis. Experiments were carried out for 13 subjects(8 healthy subjects, 5 ACL deficient patients) walking on a treadmill. Sagittal kinematic data of the right lower extremity were collected by using a 3D motion analysis system. The recorded gait patterns were digitized and then coordinated by KWON3D. The largest Lyapunov exponent from the measured knee angular displacement time series was calculated to quantify local stability. It was found that the Lyapunov exponent becomes larger as the knee condition becomes worse. This study suggested a method of the severity of injury and the level of recovery. The proposed method discerns difference between healthy subjects and patients.
정민철,정혜성,김성민,이정훈,박권필,안호근 한국공업화학회 2005 응용화학 Vol.9 No.1
We have been used for the Pt catalyst of cathode electrode in fuel cell. Weak point of Pt electrode are easily deactivated by the CO poisoning which are producing in reaction at electrode. Recent, researchers have developed cathode electrode to avoid the CO poisoning in electrode using the Pt-alloy or another novel metal. We now report Au-carbene complexes as an Au-electrode precursor derived from the reaction of the carbene with the ClAu(PPh₃) complex in THF/MeOH.
서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)
김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2
Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.
P124 : The efficacy and safety of cryo fat reduction in the treatment of pseudogynecomastia
( Jung Tae Park ),( Bori Kim ),( Sang Young Byun ),( Soon Hyo Kwon ),( Jung Won Shin ),( Kyoung Chan Park ),( Jung Im Na ),( Chang Hun Huh ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.2
Background: Options for the treatment of pseudogynecomastia, a condition of enlarged male breast primarily due to the accumulation of adipose tissue, have been limited, including weight reduction and surgical liposuction. Cryo fat reduction provides noninvasive, selective, localized subcutaneous adipocyte destruction without epidermal or dermal injury by inducing adipocyte apoptosis. Objectives: This study was designed to evaluate the efficacy of cryo fat reduction in the treatment of pseudogynecomastia. Methods: In this prospective, 28-week trial, 12 male patients with psudogynecomastia were treated with cryo fat reduction twice bimonthly. Efficacy was determined by breast circumference measurement, ultrasonographic measurement of subcutaneous layer thickness, physician’s global photographic assessment, and patient’s satisfaction at baseline at week 4, week 8, week 16 and week 28. Safety was evaluated by questionnaire at each visit. Results: For the 11 subjects completing the trial, breast circumference and thickness of fat layer determined by ultasonography significantly improved at week 8, andgradually reduced until week 28. Physician’s photographic assessment and patient’s satisfaction showed significant improvement at each visit. No adverse event was observed except transient pain immediately after the treatment and bruise at the treated site. Conclusion: Cryo fat reduction is a safe and effective therapeutic option of the treatment of pseudogynecomastia.
A New Smooth Awn Bailey Cultivar, "Wooho" Suitable for Whole Crop Forage Use
Jung Gon Kim,Jae Seong Choi,Hyoung Ho Park,Seong Bum Baek,Moon Seok Kang,Ki Hun Park,Young Up Kwon,Hwa Young Heo,Sae Jung Suh,Jung Hyun Nam,Joung Jun Lee,Young Keun Cheong,Byung Rye 한국육종학회 2007 한국육종학회지 Vol.39 No.2
A new barley (Hordeum Vulgare L.) cultivar ‘Wooho’ was developed by Honam National Agricultural Research Institute (HARI) in 2005. It had good forage characteristics (smooth awn) and showed high forage production in the 5 locations of paddy field. ‘Wooho’ was developed from the cross between SB87125〔Oweol//(SB77011)/SB79124 (Bengei//Hagane/ Bunong) ///Y7213-SD607-CM67-Milyang12〕and SB83024 (1012.2-IB65/Ol//Samheung/Suwon18-Gang) made in 1994. Subsequent selections were made throuhg bulked and pedigree selection methods. SB94104-B-B-B-B-79 was selected for smooth awn and agronomic performance in 2001 and placed in preliminary yield trial. In 2003, it was designated as ‘Suwon 396’ and performed regional yield trials. The average forage yield of ‘Wooho’ were 11.0 MT/ha and 10.9 MT/ha at May 20 and drought stage, respectively. The shattering rate of ‘Wooho’ was lower than that of ‘Ol’. It showed superior forage quality to the check variety when harvest early drought stage. ‘Wooho’ would be recommended as a cultivar of barley for whole crop forage with smooth awn.
Jung, Hun Soon,Erkin, Ozgur Cem,Kwon, Mi Jeong,Kim, Seok Hyung,Jung, Jae In,Oh, Yu‐,Kyoung,Her, Song Wook,Ju, Woong,Choi, Yoon‐,La,Song, Sang Yong,Kim, Joong Kyu,Kim, Young Deug,Shim, Ga Y Wiley Subscription Services, Inc., A Wiley Company 2012 International journal of cancer: Journal internati Vol.130 No.8
<P><B>Abstract</B></P><P>Human papillomavirus (HPV) types 16 and 18 are the major etiologic factors in the development of cervical epithelial neoplasia. Our study was designed to validate antiviral short interfering RNA (siRNA) targeting the <I>E6</I> and <I>E7</I> oncogenes as a potential chemosensitizer of cisplatin (<I>cis</I>‐diaminedichloroplatinum II; CDDP) in cervical carcinoma. Specifically, the therapeutic efficacy of combination of CDDP and E6/E7‐specific siRNA was assessed in an <I>in vivo</I> cervical cancer xenograft models. The combination of CDDP and E6/E7‐specific siRNA had greater efficacy than the combination of CDDP and E6‐specific siRNA especially in terms of inducing cellular senescence. Through <I>in vitro</I> and <I>in vivo</I> experiments, the mechanism of synergy between these two treatments was revealed, demonstrating that the combination of E6/E7‐specific siRNA and CDDP therapy was significantly superior to either modality alone. <I>In vitro</I>, long‐term exposure of HeLa cells to the combination of CDDP and E6/E7‐specific siRNA induced apoptosis and cellular senescence. <I>In vivo</I>, E6/E7‐specific siRNA potentiated the antitumor efficacy of CDDP <I>via</I> induction of apoptosis, senescence and antiangiogenesis. Our results suggest that E6/E7‐specific siRNA may be an effective sensitizer of CDDP chemotherapy in cervical cancer.</P>