An Improved Speech Processing Strategy for Cochlear Implants Based on an Active Nonlinear Filterbank Model of the Biological Cochlea

Kim $^$, Kyung Hwan,Choi, Sung Jin,Kim, Jin Ho,Kim, Doo Hee IEEE 2009 IEEE Transactions on Biomedical Engineering Vol.56 No.3

<P>The purpose of this study was to improve the speech processing strategy for cochlear implants (CIs) based on a nonlinear time-varying filter model of a biological cochlea. The level-dependent frequency response characteristic of the basilar membrane is known to produce robust formant representation and speech perception in noise. A dual resonance nonlinear (DRNL) model was adopted because it is simpler than other adaptive nonlinear models of the basilar membrane and can be readily incorporated into the CI speech processor. Spectral analysis showed that formant information is more saliently represented at the output of the proposed CI speech processor compared to the conventional strategy in noisy conditions. Acoustic simulation and hearing experiments showed that the DRNL-based nonlinear strategy improves speech performance in a speech-spectrum-shaped noise.</P>

日本의 社會科學 및 體育分野 學問硏究動向에 對한 調査 硏究

金榮秀,崔晄烈,金相漢,金麟坤,金炳斗,金永煥 慶北大學校 經商大學 經濟學科 1981 慶商大學論集 Vol.9 No.-

This paper attempts to review and trace back to, based on the data collected during visits of Japanese universities and research institutes, the organizational characteristics, the structures of curricula and study trends, with regard to the fields of social sciences, especially economics and business administration. One of the most conspicuous characteristics observed in academic organizations was Tsukuba university's system whose academic institution was organized around academic grouping, academic genealogy, and specialty: particularly social economic planning belonged to the genealogy of social engineering, in light of its characteristics in term of curriculum, seems to meet the contemporary need. There found two speciality areas in the Department of Social Engineering at the Graduate School: one is the concentration on Mathematical Planning and the other Management Engineering. Considering that its academic goal is tosys tematically and empirically analyze the human behaviors, and to take interdi-sci plinary approach through a policy-oriented system in doing so, it reflects one of the true natures of the academic trend. Their curricula appear to emphasize on analytical methods under uncertainty, application of mathematical planning techniques, system simulation, and information system design and its application, in the area of economics and business administration. Physical education is believed to require modernized facilities and equipments for its record-breaking and technical enhancement, and so increased investment in physical facilities and policy considerations for the training of physical educators are necessary.

생체 인식 정보 검출을 위한 Watershed 기반 Texture 병합에 관한 연구

김진만,김성현,조상현,김태형,김두영 東亞大學校附設情報技術硏究所 2005 情報技術硏究所論文誌 Vol.12 No.2

this paper presents the method that extracts by using watershed algorithm the area which is available for the feature factor in the iris. The inputted image is preprocessed and transferred to the texture block pattern by Polar Coordinate System Transformation. In this paper, the iris feature area is extracted from the image of Texture Block Pattern using Watershed Algorithm. The extracted area is indexed by average value and size of the feature area. After the position information of the feature area is rearranged by Polar Coordinate System Inverse-Transformation. In result, the proposed method showed that is possible to extract the definite iris feature.

FPD(Flat Panel Display) 스토커 GUI 개발

김성원,백두산,김석동,김우성 호서대학교반도체제조장비국산화연구센터 2000 반도체 장비기술 논문집 Vol.2000 No.-

FPD Stocker System은 LCD를 포함한 평판 디스플레이 소자(FPD : Flat Panel Display)의 자동 자재 저장 반출 장치(FPD Automated Storage and Retriecal System)이다. FPD Stocker System은 그 특성상 생산라인의 구조에 따라 보유 디바이스와 디바이스의 설정이 다양해지는 특성이 있다. 본 논문은 FPD Stoker System 에 사용될 Stocker GUI의 개발을 목적으로 한다.

Effect of low processing rate on homogeneous microstructural evolution of polyacrylonitrile‑based carbon fibers

Doo‑Won Kim,Dae Ho Kim,Sung Ryong Kim,Bo‑Hye Kim,Yun Hyuk Bang,Duck Joo Yang,Go Bong Choi,Yoong Ahm Kim,Kap Seung Yang 한국탄소학회 2019 Carbon Letters Vol.29 No.5

This study demonstrates that low processing rate for producing polyacrylonitrile (PAN)-based carbon fiber is a critical to obtain a homogeneous radial microstructure with high resistance to oxidation, thereby resulting in their improved mechanical strength. The dry-jet wet spun PAN organic fibers were processed (e.g., stabilized and then carbonized) utilizing two different rates; one is 1.6 times longer than the other. The effect of processing rate on the microstructural evolutions of carbon fibers was analyzed by scanning electron microscopy after slow etching in air, as well as Raman mapping after graphitization. The rapidly processed fiber exhibited the multilayered radial structure, which is caused by the radial direction stretching of the extrusion in the spinning. In case of the slowly processed fiber, the layered radial structure formed in the spinning process was changed into a more homogeneous radial microstructure. The slowly processed fibers showed higher oxidation resistance, higher mechanical properties, and higher crystallinity than the rapidly processed one. Raman mapping confirmed that the microstructure developed during spinning was sustained even though fiber was thermally treated up to 2800 °C.

發聲法의 理論과 實際

金相斗 建國大學校 敎育硏究所 1980 論文集 Vol.5 No.-

Voice production should be based on scientific principle. The science of voice production is a knowledge of certain phenomena of physical movements which are found under certain conditions to occur regularly and which produce certain definite effects. There is only one way to sing perfectly and that is the correct scientific way. All singing must of necessity be beautiful, first, last and always. Rather have it said that the voice is small and beautiful than loud and otherwise. The small beautifully placed voice is capable of portraying the full gamut of human emotions. Therefore, it is necessary to develop our own instrument, which is the vocal apparatus we rely upon to produce our own beautiful singing. When singing is most scientifically produced, and the voice soars out smothly, evenly and vibrantly with its resultant seeming effortless singing. The great fundamental objectives or principles in voice production are, proper posture, breath control, free tone, balanced, efficient ringing sonorous tone, and expressive and varied tone color. Proper posture is a fundamental for control and maximum, success in any type of skill activity whether it be athletics or musical perfomance. Necessary physical development for singing begin with habituation of proper posture and continuss through breath development and strengthening of the vocal organs through singing and tonal exercises. Efficient daphragmatic-costal breath control is the great fundamental in singing. Breath control, or breath support, means to keep tone flowing evenly, freely and firmly. Freedom vitality, expressive tone color, variety, effciency, sonority, and evenness in tonal production is also fundamental principle in singing. The first reguisite in tonal technic is freedom of production. It is vital that we learn to both hear and feel the difference between good and bad tone and, eventually the finest shades of discrimination.

발성법(發聲法)의 이론(理論)과 실제(實際)

김상두 ( Sang Doo Kim ) 건국대학교 교육연구소 1980 교사와 교육(구 교육논집) Vol.5 No.-

Voice production should be based on scientific principle. The science of voice production is a knowledge of certain phenomena of physical movements which are found under certain conditions to occur regularly and which produce certain definite effects. There is only one way to sing perfectly and that is the correct scientific way. All singing must of necessity be beautiful, first, last and always. Rather have it said that the voice is small and beautiful than loud and otherwise. The small beautifully placed voice is capable of portraying the full gamut of human emotions. Therefore, it is necessary to develop our own instrument, which is the vocal apparatus we rely upon to produce our own beautiful singing. When singing is most scientifically produced, and the voice soars out smothly, evenly and vibrantly with its resultant seeming effortless singing. The great fundamental objectives or principles in voice production are, proper posture, breath control, free tone, balanced, efficient ringing sonorous tone, and expressive and varied tone color. Proper posture is a fundamental for control and maximum success in any type of skill activity whether it be athletics or musical performance. Necessary physical development for singing begin with habituation of proper posture and continuss through breath development and strengthening of the vocal organs through singing and tonal exercises. Efficient daphragmatic-costal breath control is the great fundamental in singing. Breath control, or breath support, means to keep tone flowing evenly, freely and firmly. Freedom vitality, expressive tone color, variety, efficiency, sonority, and evenness in tonal production is also fundamental principle in singing. The first reguisite in tonal technic is freedom of production. It is vital that we learn to both hear and feel the difference between good and bad tone and, eventually, between the finest shades of discrimination.

예비체육교사의 패럴림픽에 대한 이해도 비교 연구

김상두(Sang Doo Kim),김준석(Jun Sik Kim) 한국사회체육학회 2014 한국사회체육학회지 Vol.0 No.57

The purpose of this study is to find out the level of understanding for pre-service physical-education teachers about the Paralympics and the differences between physical education majors and adapted physical education majors. For the purpose of the survey, a distinct difference between the groups on a survey has been identified. The survey material used for this study with a modification is based on Yeon-Sook Ko, Kyung-Sook Kim``s modified survey(2005) that scale analysis of disability attitude factor, which DFS(Disability Factor Scale) invented by Siller(1983) and translated by Jong-Nam Lee(1994), was used as a reference. For this study, collected 380 papers of information was updated and SPSS 18.0 program was used for its analysis with significant level of 5 percent or below. The frequency analysis has been conducted to figure out the subject``s general features, and t-test which is mean difference analysis and One-Way ANOVA have been conducted to see the awareness of the Paralympics. These tests were also used to verify differences between the two groups differentiated by major. The result are as followed. First, male have better understanding toward Paralympics than female do. However, none of statistical significance-difference was found. Second, the level of understanding toward Paralympics for all graders shows no sign of statistical significance-difference. Third, overall, adapted physical education majors have decent level of understanding toward Paralympics and the gap created from the fact, that whether he/she took adapted physical education classes, was shown. Fourth, a group with experience of volunteering turned out to have high level of understanding toward Paralympics and statistical significance-difference was found. It is shown that the differences about understanding toward Paralympics between the groups exist and pre-service physical-education teachers have lower level of understanding toward Paralympics compared to adapted physical-education majors. Fifth, the understanding level of pre-service physical-education teachers indicates areal gap and classes taken. In this study, a survey has been developed to find out the understanding level of Paralympics, which is one of the major events, for pre-service physical-education teachers and the differences between the groups have been identified. In this study which is to develop a survey as base line data to vitalize , it is suggested as followed. First, due to the fact that pre-service physical-education teachers were the subject for this study, an additionalstudy for a group of teachers who are currently working in the field should be made. Second, this study is only for major events of disabled for Paralympics. Later on, hence, study including morefeatures is a mandatory, such as various games, domestic sports festival for the people with handicapped. Third, due to this study is focused on pre-service physical education teacher, later, research which is forspecial education teacher should be needed for their better physical education service.

정신분열병에 대한 리스페리돈의 효과 및 안정성

이민수,김용구,김영훈,연병길,오병훈,윤도준,윤진상,이철,정희연,강병조,김광수,김동언,김명정,김상훈,김희철,나철,노승호,민경준,박기창,박두병,백기청,백인호,손봉기,손진욱,양병환,양창국,우행원,이정호,이종범,이홍식,임기영,전태연,정영조,정영철,정인과,정인원,지익성,채정호,한상익,한선호,한진희,서광윤 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.1

연구목적 : 본 시험의 목적은 임상시험 시작전에 연구자들을 대상으로 PANSS Workshop을 통하여 PANSS, ESRS에 대한 국내에서의 표준화 작업을 구축하고 새로운 정신병 치료제인 리스페리돈의 효과와 안정성을 재확인하여 리스페리돈 사용에 대한 적정화를 이루는데 있다. 연구방법 : 1996년 4월부터 1996년 9월까지 국내 39개 대학병원 정신과에 입원중인 혹은 증상이 악화되어 입원하는 정신분열병 환자 377명을 대상으로 다시설 개방 연구를 시행하였다. 1주일간의 약물 배설기간을 가진후, 리스페리돈을 8주간 투여하였고, 기준점, 1주, 2주, 4주, 그리고 8주후에 평가되었다. 용량은 제1일에는 리스페리돈 1mg씩 1일 2회, 제2일에는 2mg씩 1일 2회, 제3∼7일에는 3mg씩 1일 2회 투여하였다. 이후 환자의 임상상태에 따라 임의로 증량할 수 있으며, 최대 일일 16mg을 초과하지 않도록 하였다. 추체외로 증상을 조절하기 위한 투약을 허용하였다. 임상증상 및 부작용의 평가는 PANSS(Positive and Negative Syndrome Scale), CGI(Clinical Global Impression) 그리고 ESRS(Extrapyramidal Symptom Rating Scale)을 사용하였다. 연구결과 : 377명중 343명(91%)이 8주간의 연구를 완결하였다. 치료 종결시점인 8주후 PANSS 총점수가 20% 이상 호전된 경우를 약물 반응군으로 정의할때, 약물반응군은 81.3%였다. 리스페리돈에 반응하는 예측인자로는 발병연령, 이전의 입원 횟수, 유병기간이 관련 있었다. 리스페리돈은 1주후부터 PANSS양성, 음성, 및 일반정신병리 점수상에 유의한 호전을 보여 효과가 빨랐다. CGI의 경우도 기준점에 비해 1주후부터 유의한 감소를 나타내었다. ESRS의 경우, 파킨슨 평가점수는 기준점과 비교해 투여 1주, 2주, 4주후 유의하게 증가되었다가 8주후 기준점과 차이가 없었다. Dystonia 평가점수는 1주후만 유의한 증가를 보였으며, dyskinesia 평가점수는 유의한 차이가 없었다. 혈압, 맥박수의 생명징후 및 일반 혈액학 검사, 생화학적 검사, 심전도 검사에서 유의한 변화는 없었다. 결 론 : 이상의 다시설 개방 임상 연구를 통해 리스페리돈은 정신분열병 환자에서 양성증상뿐만 아니라 음성증상 및 전반적인 증상에도 효과적인 것으로 사료된다. 보다 명확한 평가를 위해서는 다른 항정신병약물과의 이중맹검 연구가 필요할 것으로 생각되며, 또한 장기적 치료에 대한 평가도 함께 이루어져야 하겠다. Objective : The purpose of this study was to investigate the efficacy and safety of risperidone in the treatment of Korean schizophrenic patients. Method : This multicenter open study included 377 schizophrenic patients drawn from 39 university hospitals. After a wash-out period of 1 week, the schizophrenic patients were treated with risperidone for 8 weeks and evaluated at 5 points ; at baseline, and 1, 2, 4 and 8 weeks of treatment. The dose was increased from 2mg/day(1mg twice daily) to 6mg/day(3mg twice daily) during the first week and adjusted to a maximum of 16mg/day over the next 7 weeks according to the patient's clinical response. Medication to control extrapyramidal symptoms was permitted. The psychiatric and neurological status of the patients was assessed by PANSS, CGI, and ESRS scales. Results : 343(91%) of 377 patients completed the 8-week trial period. Clinical improvement, as defined by a 20% or more reduction in total PANSS score at end point, was shown by 81.3% of patients. The predictors of response to risperidone were associated older age, shorter duration of illness, fewer previous hospitalization. Risperidone had rapid onset of action ; a significant decrease of the total PANSS and three PANSS factor(positive, negative, general), and CGI was already noticed at the end of first week. For the ESRS, parkinsonism rating scores were significantly increased until week 4 comparing with baseline. Dystonia rating scores were significantly increased until week 1, and dyskinesia rating scores were not significantly changed during the study. Laboratory parameters including vital sign, EKG, hematological, and biochemical values showed no significant changes during the trial. Conclusions : This study suggests that risperidone is generally safe and effective against both the positive and negative symptoms in our group of patients.

안근성 중증근무력증이 동반된 갑상선 기능항진증의 임상상 : Report of Six Cases

서지영,김두만,김현규,최철수,임성희,유재명,최문기,유형준,박성우,김형철,송홍기,김덕환 대한내분비학회 2000 Endocrinology and metabolism Vol.15 No.4·5