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Harmonics(배음)와 Formant Bandwidth(포먼트 폭)를 이용한 음성특성(音聲特性)과 사상체질간(四象體質間)의 상관성(相關性) 연구(硏究)
박성진,김달래,Park, Sung-Jin,Kim, Dal-Rae 사상체질의학회 2004 사상체질의학회지 Vol.16 No.1
This study was prepared to investigate the correlation between Sasang constitutional groups and voice characteristics using voice analysis system(in this study, CSL). I focused on the voice characteristics in terms of harmonics, Formant frequency and Formant Bandwidth. The subjects were 71 males. I classified them into three groups, that is Soeumin group, Soyangin group and Taeumin group. The classification method of Constitution used two ways, QSCCII(Questionnarie for the Sasang Constitution Classification II) and Interview with a specialist in Sasang Constitution. So 71 people were categorized into 31 Soeumin(people), 18 Soyangin(people) and 22 Taeumin(people). Pitch is approximately similar to the fundamental frequency(F0) in voices. Shimmer in dB gives an evaluation of the period-to-period variability of the peak-to-peak amplitude within the analyzed voice sample. FFT(Fast Fourier Transform) method in CSL can display sampled voices into harmonics. H1 is the first peak and h2 is the second peak in the harmonics. The amplitude difference of h1 and h2(h1-h2) can be explained as the speaker's phonation type, And Formant frequency and bandwidth can be explained as the speaker's vocal tract. So I checked the harmonics and Formant frequency and Bandwidth as the voice parameters. First I have captured /e/ voices from all subjects using microphone. And then I analyzed /e/ voices with CSL. Power Spectrum and Formant History is the menu in the CSL which can display harmonics and Formant frequency and bandwidth. The results about the correlation between Sasang Constitutional Groups and voice parameters are as follows; 1. There is no significant amplitude difference of harmonics(h1-h2) among three groups. 2. There is the significant difference between Soeumin Group and Soyangin Group in Formant Frequency 1 and Formant Bandwidth 1(p<0.05). Any other parameters have no significance. I assume that Soyangin Group has clearer and brighter voice than Soeumin Group according to the Formant Bandwidth difference. And I think its result has coincidence with the context of "Dongyi Suse Bowon" and "Sasangimhejinam".
에이엘 스캔, 자동각막굴절계, 펜타캠의 각막 굴절력 비교 분석
박성진,임성협,이호영.Sung Jin Park. MD. Sung Hyup Lim. MD. Ho Young Lee. MD 대한안과학회 2014 대한안과학회지 Vol.55 No.7
<b>Purpose:</b> To investigate clinical availability of AL-ScanTM (Nidek, Gamagori, Japan) by comparing corneal refractive power with AL-ScanTM, AutokeratometerTM (Topcon KR-1, Tokyo, Japan) and PentacamTM (Oculus, Wetzlar, Germany) devices. <b>Methods</b>: Seventy-one patients (142 eyes) who visited our hospital for refractive surgery were tested using AL-Scan<sup>Ⓡ, Autokeratometer and Pentacam<sup>Ⓡ and corneal refractive power was compared among devices. <b>Results:</b> When comparing measurements with AL-Scan<sup>Ⓡ, Autokeratometer and Pentacam<sup>Ⓡ, the mean corneal refractive power was 43.37 ± 1.32 D (2.4 mm zone), 43.35 ± 1.32 D (3.3 mm zone), 43.36 ± 1.35 D, and 43.35 ± 1.36 D respectively and showed no significant differences. Corneal refractive power had strongly positive linear correlation (<em>p </em>< 0.001) and Bland-Altman plots showed high degree of agreement among AL-Scan<sup>Ⓡ, Autokeratometer and Pentacam<sup>Ⓡ devices. <b>Conclusions:</b> Because measuring ocular biometry with AL-Scan<sup>Ⓡ including axial length, intraocular lens power calculation and topography simultaneously is possible, clinical use is convenient. Corneal refractive power was not different when compared with autokeratometer and Pentacam<sup>Ⓡ, thus, AL-Scan<sup>Ⓡ can be used in the clinical environment. J Korean Ophthalmol Soc 2014;55(7):984-990
박성진,Park, Seong-Jin 전국농업기술자협회 2008 농업기술회보 Vol.45 No.4
최근 일본에서는 시중에 판매되는 농약에 비해 값이 저렴한 석회를 이용하여 작물의 생육에 꼭 필요한 칼슘성분을 적극적으로 사용함으로서 작물의 면역력을 높여 병.충해를 예방, 방제하는 방법을 실천하는 농가가 늘고 있다. 주로 고토석회와 소석회를 덧거름으로 사용하는 경우가 많고, 석회가루를 직접 작물의 잎에 뿌리거나 물에 녹인 후 희석하여 뿌려주고 있다. 한편 굴 껍질이나 계란껍질을 현미식초나 목초액 등에 녹여서 뿌려주는 농가도 있다. 이런 농가 100명의 목소리를 설문 조사한 결과와 사례를 소개한다.
외상성 뇌실질내 혈종에 대한 상측방 키홀을 통한 내시경적 혈종 제거
박성진,하호균,정호,이상걸,박문선,Park, Sung-Jin,Ha, Ho-Gyun,Jung, Ho,Lee, Sang-Keol,Park, Moon-Sun 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.2
Objective : As a minimally invasive strategy, endoscopic technique was introduced for removal of the traumatic intracerebral hematoma. Material and Method : A 54-year-old man with three-day history of seizure and progressive mental deterioration after traffic accident was presented. Computerized Tomography(CT) of the brain showed a huge intracerebral hematoma on the right frontal lobe and ventricle. The operation was performed via right frontal superolateral keyhole with 2cm eyebrow skin incision. Using 0-degree and 30-degree angled lens 4mm rigid endoscopes, nearly all of the hematoma was evacuated under the direct endoscopic visualization and a ventricular catheter was exactly placed into the frontal horn of the right lateral ventricle at the end of procedure. Results : The seizure was discontinued and neurological status had been improved during postoperative periods. Postoperative CT demonstrated that most of the hematoma was removed and the ventricular drainge tube was exactly placed in the right foramen of Monro. Conclusion : With endoscopic technique, the authors successfully evacuated traumatic intracerebral hematoma and exactly placed the ventricular drainage catheter under direct visualization. This technique may be considered as an another option for removal of traumatic intracerebral hematoma.
전방 경추 미세 추간공 확대술 : 경추증에 대한 최소침습적 전측방 접근법
박성진,하호균,정호,이상걸,박문선,Park, Sung-Jin,Ha, Ho-Gyun,Jung, Ho,Lee, Sang-Keol,Park, Moon-Sun 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.1
Objective : Various surgical approaches have been implemented to fulfill the ideal goals of treatment for cervical spondylotic lesions. Conventional approaches are represented by anterior approach with or without fusion and posterior approach. The authors has applied newly developed anterior cervical microforaminotomy for these lesions on minimally invasive basis. Materials and Method : Twenty-one patients, with cervical HIVD, or stenosis, or both, underwent anterior cervical microforaminotomy between March, 1998 and April, 1999. Fifteen patients underwent unilateral decompression, and 6 bilateral decompression via unilateral foraminotomy. Operation of one level was performed in 16 patients, 2 levels in 4 patients, and 3 in 1 patient. The foraminotomy was accomplished by resecting the uncovertebral joint. Through this hole, compressed nerve root was decompressed by removing the spondylotic spur or disc fragment, and diagonal removing of posterior osteophyte from foraminotomy site to begining of contralateral nerve root made spinal cord decompression. Results : The outcome was excellent in 17 patients(81%) and good in 4 patients(19%) based on Odom's criteria. No complication was encounterd, and average post-operation hospital stay was 3.7 days. Conclusions : These results indicate that anterior cervical microforaminotomy provide adequate neural decompression, minimum postoperative discomfort and fast recovery.
다중 측면 기반의 분산 데이터 할당을 위한 MAPN 모델링
박성진,Park, Seong-Jin 한국정보처리학회 2000 정보처리논문지 Vol.7 No.3
In designing distributed databases, DAP(Data Allocation Problem) is one of the key design issues. Because, however, most of previous researches on DAP have considered only cost aspect, they cannot increase the performance and availability and they are not proper to the system requiring high-availability or real-time processing. Therefore, we need a more formal data allocation model considering multiple aspects. In this paper, we propose the MAPN (Multiple Aspects Petri Net) modeling method for the distributed transaction modeling. The MAPN model, an extended classical petri net, is proposed for the formal modeling considering multiple aspects (cost, performance and availability) concurrently. We demonstrate that we can compose the valid DAP evaluation model considering not only cost but also performance and availability concurrently by using the MAPN structure and MAPN graph.