Kano 모형과 잠재적 고객만족 개선지수를 이용한 공연장 서비스품질에 대한 연구

박성민(Park, Sung-Min),김채복(Kim, Chae-Bogk) 한국서비스경영학회 2016 서비스경영학회지 Vol.17 No.2

The interests of high value of living have been increased after applying 5 working days per week. People who visit art centers and enjoy cultural activities grow larger every year. It is important to provide better service to customers at art centers by analyzing customers" needs. This paper employs Kano model and potential customer satisfaction improvement(PCSI) index to investigate customers" satisfaction or dissatisfaction levels after finding factors which affect service quality at art center. Then, the priority of factors for service quality improvement is assessed. Based on the analysis results, factors of "sound and stage setting", "seat comfort", "gladness by performance", "variety of performances" are selected as attractive quality factors. Also, factors of "stage visibility of seat", "convenience of parking", "convenience of public transportation", "seat comfort", "appropriate staff allocation" are chosen by PCSI index.

치주수술 후 지각과민증에 대한 MS Coat와 엘멕스 겔처치의 임상적 효과

박성민,임성빈,정진형,Park, Sung-Min,Lim, Sung-Bin,Chung, Chin-Hyung 대한치주과학회 2001 Journal of Periodontal & Implant Science Vol.31 No.4

Dentinal hypersensitivity is one of the complicated symptom rather than a disease. It has special reaction or pain over uncovered root by heat, mechanical or chemical stimulations, which are normal with healthy teeth, The purpose of this study is to discover rather MS Coat (oxalate-containing pre-polymerized resin suspension) or Elmex gel(amine fluoride+sodium fluoride) is effective on hypersensitivity after periodontal treatment using NRS(Numerica1 Rating Scales), which it is useful for evaluating pain level. This study has been prepared in Dankook Dental Hospital with generally healthy adult who had been suffered from dentinal hypersensitivity after periodontal treatment. Divided in three groups with saline(control group), MS Coat(test 1 group) and Elmex gel(test 2 group). And then, following evaluations were made at the end of 1 minute, 1 week, 1 month and 3 months. 1. The sequence of higher frequency & severeness of hypersensitivity is water within $7^{\circ}C$, air stream & explorer. 2. As time goes on, 1 minute, 1 week, 1 month & 3 months, severeness of hypersensitivity scored lower with water, air stream and explorer. 3. With explorer, the differences among three groups as time had to seen. 4. With air stream, the sensitivity scored lower after 1min with MS Coat, Elmex, and saline sequence. As time goes on the sensitivity was lower with MS Coat and Elmex than saline, but there was no difference between MS Coat and Elmex. 5. With water in $7^{\circ}C$, the sensitivity was much decreasing with MS Coat and Elmex than saline, but there was no difference between MS Coat and Elmex. As the result, MS Coat and Elmex are effective on hypersensitivity caused by periodontal treatment.

경옥고를 이용한 식초의 개발

박성민,이원욱,조미정,이종록,정대화,박은영,변성희,김상찬,Park, Sung-Min,Lee, Won-Wook,Jo, Mi-Jeong,Lee, Jong-Rok,Jung, Dae-Hwa,Park, Eun-Young,Byun, Sung-Hui,Kim, Sang-Chan 대한한의학방제학회 2009 大韓韓醫學方劑學會誌 Vol.17 No.1

Gyoungok-go (GOG; Qiongyu-gao in Chinese) has been used in traditional oriental medicine for the improvement of various physiological vitality functions. The aim of present work is to investigate a processing possibility of vinegar using GOG. GOG vinegar was prepared by two stage fermentations of alcohol and vinegar. The method of GOG fermentation with polished rice as a fermentation substrate is not yet established. The result of alcohol fermentation rate of GOG with some strains, strain No. 1 produced the highest alcohol contents among 7 strains. The strain No. 1 identified Saccharomyces paradoxus by 18S rDNA classification. S. paradoxus was produced over 20% alcohol in the 1$\sim$11% GOG with polished rice. A. aceti was produced 8.52% acetic acid from 6.5% alcohol containing 11% GOG, after incubation for 11 days.

딕셔너리 러닝을 이용한 음파 신호 분류기 설계

박성민,사성진,오광명,이희승,Park, Sung Min,Sah, Sung Jin,Oh, Kwang Myung,Lee, Hui Sung 한국자동차안전학회 2016 자동차안전학회지 Vol.8 No.1

As new car technology is developing, temporal interaction is needed in automotive. Rhythmic pattern is one of the practical examples of temporal interaction in vehicle. To recognize rhythmic pattern and its input medium, dictionary learning is applicable algorithm. In this paper, performance and memory requirement of the learning algorithm is tested and is sufficiently good for use this acoustic sound.

탄소섬유 펼침 기술을 적용한 CF/PA6 적층 복합재료의 특성

박성민,김명순,최윤성,이은수,천진성,유호욱,Park, Sung-min,Kim, Myung Soon,Choi, Yoon Sung,Lee, Eun Soo,Chon, Jin Sung,Yoo, Ho Wook 한국섬유공학회 2015 한국섬유공학회지 Vol.52 No.6

This paper reports the preparation of CF/PA6 (Polyamide 6) laminate composites using tow-spreading technology. Additionally, the effect of the spread tow on impregnation was investigated by Darcy's law. The thickness of an unspread 12K carbon fiber tow was reduced by increasing the tow width from 7 to 20 mm. The PA6 film was used to stabilize and impregnate the spread tow by covering it with a partially consolidated prepreg:12K carbon fiber spread tow/PA6 film. The laminate composites were fabricated from the prepreg and, for comparison, the other laminate composite was produced from a conventional tow prepreg of 12K carbon fiber/PA6 film. Consequently, the spread tow laminate composite exhibited a lower void content and improved mechanical properties.

개에서 광범위한 추궁절제술의 임상적 평가

박성민,이충호,김완희,권오경,Park, Sung-Min,Lee, Chung-Ho,Kim, Wan-Hee,Kweon, Oh-Kyeong 대한수의학회 2002 大韓獸醫學會誌 Vol.42 No.4

The purpose of the present study was to investigate structural stability of extensive laminectomy and the effect of subcutaneous fat autograft on restricting formation of postlaminectomy membrane (fibrous tissue). Eighteen healthy dogs of both sexes and of mixed breeding were divided into 6 groups : (1) unilateral hemilaminectomy (group H) on 3rd, 4th and 7th vertebrae ; (2) modified dorsal laminectomy (group D) on 3rd, 4th and 7th vertebrae. Hemilaminectomies were carried out incontinuously at 16 sites in 4 dogs, then subcutaneous fat autografts (group F) were applied to 8 laminectomy sites and no treatment (group C) was assigned to 8 laminectomy sites, too. Operating time of group H ($30.9{\pm}10.4$ minutes) was significantly shorter (p<0.05) than that of group D ($43.1{\pm}12.2$ minutes), but surgical hemorrhage of group H is severer than that of group D. General states, such as standing, gait, defecation and urination, were normal. Upper motor neuron/lower motor neuron signs were not found and superficial/deep pain, proprioception and anal sphincter tone were normal. Gross postmortem findings were similar in all groups. The laminectomy sites of groups H and D were filled with fibous connective tissue at 4 months after operation and histopathological abnormalities of spinal cord were not found. One of eight laminectomy sites in group F was filled with fibrous tissue at 2 months after operation, but all operating sites of group C were covered with fibrous tissue. The present study indicated that extensive laminectomy on 7 vertebrae, using unilateral hemilaminectomy and modified dorsal laminectomy technique, maintained structural stability and subcutaneous fat autograft was effective on reducing the formation of fibrous membrane in laminectomy sites.

덩굴마름병원균인 Didymella bryoniae의 생물학적 방제를 위한 길항세균의 분리 및 특성

박성민,정혁준,김현수,유대식,Park Sung-Min,Jung Hyuck-Jun,Kim Hyun-Soo,Yu Tae-Shick 한국미생물학회 2006 미생물학회지 Vol.42 No.2

We isolated a bacterium which produces antifungal substances from the Sanktpeterburg soils at Russia. The iso-lated strain was identified as Brevibacillus sp. and shown a strong antifungal activity on plant pathogenic fungi. Brevibacillus sp. KMU-391 produced maximum level of antifungal substances under incubation aerobically at $30^{\circ}C$ for 48 hours in trypticase soybean broth containing 1.0% sucrose and 1.0% polypeptone at 180 rpm and initiated pH adjusted to 7.0. Precipitate of culture broth by $30{\sim}60%$ ammonium sulfate precipitation exhibited strong antifungal activity against Didymella bryoniae by dry cell weight. Butanol extract of cultured broth also shown fungal growth inhibitory activity against Botrytis cinerea KACC 40573, Botrytis fabae KACC 40962, Colletotrichum gloeosporioides KACC 40804, Colletotrichum orbiculare KACC 40808, Didymella bryoniae KACC 40669, Fusarium graminearum KACC 41040, Fusarium oxysporum KACC 40037, Fusarium oxysporum KACC 40052, Fusarium oxysporum f, sp. radicis-Iycopersici KACC 40537, Fusarium oxysporum KACC 40902, Monosporascus cannonballus KACC 40940, Phytophthora camvibora KACC 40160, Rhizoctonia solani AG-1(IA) KACC 40101, Rhizoctonia solani AG-4 KACC 40142, and Scleotinia scleotiorum KACC 41065 by agar diffusion method. 덩굴마름병균인 Didymella bryoniae KACC 40669에 대하여 높은 항진균 활성을 나타내는 Brevibacillus sp. KMU-391은 Russia의 Sanktpeterburg 지역의 토양 시료로부터 분리하였다. Brevibacillus sp. KMU-391이 생산하는 항진균 물질은 D. bryoniae의 생육을 강하게 억제할 수 있었으며 TSB를 기본배지로 하여 탄소원으로 1.0% sucrose와 1.0%의 polypeptone을 첨가한 후 pH를 7.0으로 조정하여 $30^{\circ}C$에서 180 rpm으로 2일간 배양하였을 때 가장 높은 항진균 활성을 나타내었다. 배양액에 $30{\sim}60%$의 ammonium sulfate를 처리하여 Brevibacillus sp. KMU-391이 생산하는 항진균 물질을 회수한 후 D. bryoniae를 액체배양을 통한 항진균 활성을 조사한 결과 대조구와 비교하여 41%의 생육을 저해하는 것으로 확인되었다. 또한 butanol을 이용하여 항잔균 물질을 회수한 후, 다양한 작물병원성 곰팡이를 대상으로 항진균 활성 spectrum을 조사한 결과 조사, 장미 잿빛곰팡이병, 잠두 붉은점무늬병, 고추 탄저병, 참외 탄저병, 수박 등의 박과작물의 덩굴마름병, 보리 질병, 토마토 시들음병, 글라디올러스 마른썩음병, 토마토 질병, 수박 덩굴쪼김병, 수박 질병, 사과나무 역병, 벼 잎집무늬마름병, 참외 줄기썩음병, 그리고 고추균핵병에 대하여 높은 항진균 활성을 나타내었다. 이러한 결과를 바탕으로 Brevibacillus sp. KMU-391을 이용하여 작물병원성 곰팡이에 대한 생물농약으로서의 응용 가능성을 확인 할 수 있었다.

흉부CT 검사 시 HRCT 영상 재구성의 유용성

박성민,김긍식,강성민,유병규,이기배,Park, Sung-Min,Kim, Keung-Sik,Kang, Seong-Min,Yoo, Beong-Gyu,Lee, Ki-Bae 대한디지털의료영상학회 2015 대한디지털의료영상학회논문지 Vol.17 No.1

Purpose : Skip the repetitive HRCT axial scan in order to reduce the exposure of patients during chest HRCT scan, Helical Scan Data into a reconstructed image, and exposure of the patient change and visually evaluate the usefulness of the HRCT images. Materials and method : Patients were enrolled in the survey are 50 people who underwent chest CT scans of patients who presented to the hospital from January 2015 to March 2015. 50 people surveyed 22 people men and 28 people women people showed an average distribution of 30 to 80 years age was 48 years. 50 patients to Somatom Sensation 64 ch (Siemens) model with 120 kVp tube voltage to a reference mAs tube current to mAs (Care dose, Siemens) as a whole, including the lungs and the chest CT scan was performed. Scan upon each patient CARE dose 4D (Automatic exposure control, Siemens Medical Solution Erlangen, Germany) was to maintain the proper radiation dose scan every cross-section through a device that automatically adjusts the tube current of. CT scan is the rotation time of the Tube slice collimation, slice width 0.6 mm, pitch factor was made under the terms of 1.4. CT scan obtained after the raw data (raw data) to the upper surface of the axial images and coronal images for each slice thickness 1 mm, 5 mm intervals in the high spatial frequency calculation method (hight spatial resolution algorithm, B60 sharp) was the use of the lung window center -500 HU, windows were reconstructed into images in the interval -1000 HU to see. Result : 1. Measure the total value of DLP 50 patients who proceed to chest CT group A (Helical Scan after scan performed with HRCT) and group B (Helical Scan after the HR image reconstruction to the original data) compared with the group divided, analysis As a result of the age, but show little difference for each age group it had a decreased average dose of about 9%. 2. A Radiation read the results of the two Radiologist and a doctor upper lobe and middle lobe of the lung takes effect the visual evaluation is not a big difference between the two images both, depending on the age of the patient, especially if the blood vessels of the lower lobe (A: 3.4, B: 4.6) and bronchi(A: 3.8, B4.7) image shake caused by breathing in anxiety (blurring lead) to the original data (raw data) showed that the reconstructed image is been more useful in diagnostic terms. Conclusion : Scan was confirmed a continuous, rapid motion video to get Helical scan is much lower lobe lung reduction in visual blurring, Helical scan data to not repeat the examination by obtaining HRCT images reorganization reduced the exposure of the patient.

병렬식 광 인터컨넥트용 멀티채널 수신기 어레이

박성민,Park, Sung-Min 대한전자공학회 2005 電子工學會論文誌-SD (Semiconductor and devices) Vol.42 No.7

본 논문에서는 병렬식 광 인터컨넥트 응용을 위한 멀티채널 광수신기 어레이를 구현한다. 0.8$\mu$m Si/SiGe HBT 공정을 이용하여 설계한 수신기 어레이는 4채널의 전치증폭기 (transimpedance amplifier 혹은 TIA)와 PIN 광다이오드를 포함하는데, TIA는 일반적인 에미터 접지 (common-emitter 혹은 CE) 입력단을 취한다. 측정결과로서, CE TIA 어레이는 3.9GHz 주파수 대역폭과 62dB$\Omega$ 트랜스 임피던스 이득, 7.SpA/sqrt(Hz) 평균 노이즈 전류 스펙트럼 밀도 및 -2SdB 채널 간 crosstalk 성능을 가지며, 4채널 전체 모듈이 40mW 전력소모를 보인다. A four-channel photoreceiver ways have been realized in a 0.8$\mu$m Si/SiGe HBT technology for the applications of parallel optical interconnects. The receiver array includes four-channel transimpedance amplifiers (TIAs) and p-i-n photodiodes, where the TIAs exploit a common-emitter (CE) input configuration. Measured results demonstrate that the four-channel CE TIA array provides 3.9GHz bandwidth, 62dB$\Omega$ transimpedance gain, 7.5pA/sqrt(Hz) average noise current spectral density, and less than -25dB crosstalk between adjacent channels with 40mW power dissipation.

식물 병원성진균에 대한 도꼬마리 추출물의 항 진균활성

박성민,정혁준,한선희,여수환,김용원,안형근,김현수,유대식,Park, Sung-Min,Jung, Hyuck-Jun,Han, Sun-Hee,Yeo, Soo-Hwan,Kim, Young-Won,Ahn, Hyung-Geun,Kim, Hyun-Soo,Yu, Tae-Shick 한국생명과학회 2005 생명과학회지 Vol.15 No.5

도꼬마리의 ether 및ethyl acetate 추출물이 식물병원성 진균에 대한 항 진균활송을 측정한 결과, ether와 ethyl acetate 추출물은 P. capsici, S. sclerotiorum과 A. niger에 높은 항 진균활성을 나타내었다. 또한 S. sclerotionum에 대한 ether 추출한 도꼬마리의 $IC_{50}$은 $335{\mu}g/ml$로 계산되었다. TCL plate상에서 Rf 값이 0.87밴드에서 강한 항 진균활성을 나타냈다. Antifungal activity of ether and ethylacetate extract from Xanthium strumarium L. were tested against 11 plant pathogens by agar diffusion method. Antifungal activity of the ether and ethylacetate extract showed strong antifungal activity against plant pathogenous fungi, i.e. Phytophthora capsici, Sclerotinia sclerotiorum and Aspergillus niger. The $IC_{50}$ of the ether extract against Sclerotinia sclerotiorum was determined $335{\mu}g/ml$ Antifungal activity of the ether extract from Xanthium strumarium L. showed Rf value=0.87 on TLC plate.