심폐 소생술 후 저산소성 허혈성 혼수 환자의 임상적 경과

박규남,최승필,이미진,김영민,최경호,성춘호,곽태영,이원재 대한응급의학회 2005 大韓應急醫學會誌 Vol.16 No.3

Park's Vector 기법을 이용한 소형 3상 유도 전동기의 권선 고장 진단

박규남,한민관,우혁재,송명현 한국정보통신학회 2003 한국정보통신학회논문지 Vol.7 No.6

본 연구는 3상 소형 유도전동기의 고정자 권선 고장의 효과적인 진단을 위하여 고정자 전류에 대하여 Park's Vector 기법을 적용하였다. 본 기법은 고정자 3상 전류를 측정하여 Park's vector 변환을 통하여 직축, 횡축 전류로 변환하고, 이를 이용하여 고장 진단을 위한 Park's Vector Pattern을 얻어 정상 상태 패턴과 고장 권선 패턴을 비교하였다. 고정자 권선 한 상에 2턴, 10턴, 그리고 20 턴의 단락고장을 발생시켜 정격부하의 25%, 50%, 100% 부하변동에 따른 각각의 Park's Vector Pattern을 비교하여 얻은 실험 결과는 제안한 방법의 유용성을 보여준다. This paper deals with efficient diagnostic for stator winding fault of 3-phase induction motor using a current Park's vector approach. This method firstly transforms 3-phase stator current to vertical axis current and horizontal axis current of Park's Vector, and then obtains the each Park's Vector Pattern and detects stator winding fault by comparing to Park's Vector Pattern of healthy and fault. Experimental results, obtained by using induction motor having inter-turn fault of 2, 10, 20 turn, demonstrate the effectiveness of the proposed technique, for detecting the presence of stator winding fault under 25%, 50%, and 100% of full load condition.

디지탈 인코더의 符號化 技法에 關한 硏究

朴奎南 順天大學校 1985 論文集 Vol.4 No.1

Cyclic codes are often used in encoders to avoid possible ereoneous readings. Special attention must be paid to codes where changes in certain digits are irreular. A new cyclic encoding scheme for a degree-reading encoder is propoesd in this paper. While keeping the encoding simple and effcient, the method considerably reduces the external decoding circuit requirements.

AC / DC 컨버터의 간접전류제어를 위한 델타 변조방식에 관한 연구 ( A Study on the Delta Modulation Method for Indirect Current Control in AC / DC Converter )

박규남,김광헌 대한전자공학회 1995 대한전자공학회 학술대회 Vol.1995 No.1

A Comparison of Genospecies of Clinical Isolates in the Acinetobacter spp. Complex Obtained from Hospitalized Patients in Busan, Korea

박규남,강혜숙,김혜란,정보경,김도희,장경수 대한의생명과학회 2019 Biomedical Science Letters Vol.25 No.1

Of the Acinetobacter spp., A. baumannii (genospecies 2) is the most clinically significant in terms of hospital-acquired infections worldwide. It is difficult to perform Acinetobacter-related taxonomy using phenotypic characteristics and routine laboratory methods owing to clusters of closely related species. The ability to accurately identify Acinetobacter spp. is clinically important because antimicrobial susceptibility and clinical relevance differs significantly among the different genospecies. Based on the medical importance of pathogenic Acinetobacter spp., the distribution and characterization of Acinetobacter spp. isolates from 123 clinical samples was determined in the current study using four typically applied bacterial identification methods; partial rpoB gene sequencing, amplified rRNA gene restriction analysis (ARDRA) of the intergenic transcribed spacer (ITS) region of the 16~23S rRNA, the VITEK® 2 system (an automated microbial identification system) and matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS). A. baumannii isolates (74.8%, 92/123) were the most common species, A. nosocomialis (10.6%, 13/123) and A. pittii isolates (7.5%, 9/123) were second and third most common strains of the A. calcoaceticus-A. baumannii (ACB) complex, respectively. A. soli (5.0%, 6/123) was the most common species of the non-ACB complex. RpoB gene sequencing and ARDRA of the ITS region were demonstrated to lead to more accurate species identification than the other methods of analysis used in this study. These results suggest that the use of rpoB genotyping and ARDRA of the ITS region is useful for the species-level identification of Acinetobacter isolates.

TCR-靜止形 無效電力補償裝置의 周波數應答에 대한 等價回路解析

朴奎南,張永學,鄭榮國 순천대학교 공업기술연구소 1988 工業技術硏究所論文集 Vol.2 No.-

Traditionally, the model for power switching circuits at harmonic frequencies connected to an ac system has been an ideal current source. The magnitudes of the currents at each frequency are derived from the anaiysis of idealized current waveform. These currents are injected into the ac system to determine the resonant frequencies and harmonic penetration into the system. A more accurate model for frequency plane analysis is proposed and it is applied to a static VAR compensator(SVC) consisting of a fixed capacitor in parllel with a thyristor controlled reactor(FC­TCR). This model consists of a harmonic voltage source in series with a variable source admittance. The differential equations for the system are first written in order to gain a better insight to the problem. The model is hypothesized and the circuit is analyzed to determine its parameters. Finally, the results of a model test is shown which verify the accuracy of the model.

The Effects of Active Stretching Exercise on Passive Stiffness of Rectus Femoris Muscle and Low Back Pain in Patients with Lumbar Extension Rotation Syndrome

박규남 KEMA학회 2017 근골격계과학기술학회 Vol.1 No.1

ABSTRACT Background A previous literature suggested that increased passive stiffness of rectus femoris muscle (RF) can cause compensatory lumbopelvic motion in sagittal plane or transverse plane during active knee flexion in patients with lumbar extension rotation syndrome (L-ext & rot syn), resulting low back pain. Purpose The purpose of this study was to investigate the effects of active stretching exercise of RF during 6-week on passive muscle stiffness of RF and low back pain in patients with L-ext & rot syn. Study design Pre/post-test design. Methods Twenty patients with L-ext & rot syn were recruited for this study. Passive RF stiffness was measured in pre- and post-stretching period using specially designed motorized pulling machine. Subjective stretch sensation and intensity of low back pain were measured using numeric rating scale. The subjects performed the active RF stretching exercise during 6-week. The significance of the difference between pre- and post-stretching exercises was assessed using repeated one-way analysis of variance. Results Passive RF stiffness and stretch sensation after RF stretching exercise was significantly reduced in subjects with L-ext & rot syn. However, pain intensity of low back during daily activity showed no significant difference between before and after stretching exercise. Conclusions Active RF stretching exercise during 6-week can decrease RF stiffness, but failed to decrease pain intensity of low back during daily activity in patients with L-ext & rot syn.

Logistics Data Warehouse를 활용한 반도체 물류 분석 방법

박규남,조민수,송민석,이진연 한국경영과학회 2019 한국경영과학회 학술대회논문집 Vol.2019 No.4

Logistics Data Warehouse를 활용한 반도체 물류 분석 방법

박규남,조민수,송민석,이진연 대한산업공학회 2019 대한산업공학회 춘계학술대회논문집 Vol.2019 No.4

수변공간 시설 및 환경 평가를 통한 유원지 개선방안-대구광역시 유원지를 대상으로-

박규남,정성관 전북대학교 부설 휴양및경관계획연구소 2019 휴양및경관연구 (J East Asian Landscape Studies) Vol.13 No.4

This study analyzed the user's perception of environmental elements in waterfront to suggest improvement measures for waterfront. The study was conducted at the Suseong and Dongchon Amusement Parks in Daegu and analyzed the survey of 410 people to produce the results. As a result of analyzing the importance and satisfaction of the environmental elements of the waterfront, the Suseong Amusement Park has the highest importance for 'Management of waterfront' and the satisfaction of the 'Beautiful waterfront landscape' is the highest. In the case of Dongchon Amusement Park, 'Enough shade' and 'Management of waterfront' were recognized as important, and it was analyzed that satisfaction with 'Access to water space' was high. Based on this, IPA analysis was performed to suggest improvement plans. Suseong Amusement Park needs to install roadside trees and shade tents along the north trail and safety facilities such as CCTV, life tubes, safety bells, etc., and rest facilities such as benches will need to be improved and additionally installed. Dongchon Amusement Park needs to establish a management plan for waste and water quality, recruit managerial personnel, and install a barrier-free facility considering the disabled and the elderly. In addition, more safety facilities such as sacety railings and life tubes are needed around the Kumho River. 본 연구는 수변공간 이용자를 대상으로 수변공간의 환경요소에 대한 인식을 분석하여 수변공간의 개선방안을 제시하였다. 연구대상지는 대구광역시에 위치한 수성유원지와 동촌유원지로 설정하였으며, 총 410명의 설문응답을 분석하여 결과를 도출하였다. 수변공간 환경요소의 중요도 및 만족도를 분석한 결과, 수성유원지는 ‘수변공간의 관리’에 대한 중요도가 가장 높았으며, ‘아름다운 수변경관’의 만족도가 가장 높은 것으로 나타났다. 동촌유원지의 경우 ‘충분한 그늘’, ‘수변공간의 관리’등이 중요한 것으로 인식되었으며, ‘수공간의 접근’에 관한 만족도가 높은 것으로 분석되었다. 이를 토대로 IPA 분석을 수행하여 개선방안을 제시하였으며, 수성유원지는 수성못 북쪽 산책로를 따라 녹음을 제공할 수 있는 가로수, 그늘막 등의 설치가 필요하고 CCTV, 구명튜브, 안전벨 등과 같은 안전시설, 벤치 및 파고라 등 휴게시설의 개선 및 추가설치가 필요할 것으로 판단된다. 동촌유원지는 쓰레기 및 수질에 대한 관리방안 수립, 관리인력 충원이 필요하며, 장애인과 노약자를 고려한 무장애 시설 등의 설치가 이루어져야 한다. 또한 금호강 주변으로 안전난간, 구명튜브 등의 안전시설이 더 필요할 것으로 사료된다.