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실시간 스트리밍 기반의 교내 방송 시스템의 데이터베이스
정나래(Na Rae Jung),나보균(Bo Kyun Na) 한국정보과학회 2009 한국정보과학회 학술발표논문집 Vol.36 No.2C
현 교내 상황에서 교내 비디오 방송 시스템의 필요성을 절감하고 방송 시스템을 요구하는 추이가 증가하고 있으며 학교 내부에서 학생들 간의 정보를 공유하고 서로의 의사를 소통할 수 있는 정보의 장이 부족하다. 따라서 현재 학교 내부에서는 교내 비디오 방송 시스템이 요구되고 있다. 또한 최근 IPTV에 대한 관심이 높아지고, 이에 따른 서비스들이 생겨나기 시작했다. IPTV는 초고속 인터넷을 이용하여 정보 서비스, 동영상 contents등을 텔레비전 수상기로 제공하는 서비스를 말한다. 이러한 방식을 적용시켜 교내 방송 시스템을 구축하였는데, 본 논문에서는 교내 비디오 방송 시스템 환경의 정보들을 저장하고 검색할 수 있는 데이터 베이스를 다룬다.
Tape Casting법에 의한 PMS-PZT계 세라믹스 제조 및 전기적 특성
정현제,나은상,최성철,Jung, Hyun-Jae,Na, Eun-Sang,Choi, Sung-Churl 한국세라믹학회 2001 한국세라믹학회지 Vol.38 No.9
본 논문은 출발물로서 2mol% CdO가 치환된 $0.05Pb(Mn_{1/3}Sb_{2/3})O_3-0.95Pb(Zr_{0.52}Ti_{0.48})O_3$ 분말을 제조 후, 닥터 블레이드 방법으로 green sheet를 제조하기 위한 slurry의 최적 공정첨가제 조성에 관한 연구를 수행하였다. 또한, 제조된 green sheet에 대하여 소결 특성과 두께 변환에 따른 유전 및 압전 특성을 관찰하였다. 공정첨가제의 첨가에 따른 점도거동을 통하여 slurry를 최적화하였고, TGA 분석으로 소결조건을 정하였으며, sheet의 특성에 미세구조와 XRD 등으로 측정하였다. 최적의 slurry는 고형분량 30vol%에 대해 분산제 3.0wt%에서 가장 안정화되었고, 이후 바인더/가소제(0.75/0.25) 3.0wt% 첨가시 점도는 7.55Pa${\cdot}$s이었다. Green sheet의 유전 및 압전 특성들은 각각 900$^{\circ}$C, 950$^{\circ}$C, 1000$^{\circ}$C로 소결온도를 증가함에 따라 다소 증가하였지만, 두께에 따른 특성들은 큰 변화가 관찰되지 않음을 확인하였다. After manufacturing 2mol% CdO substitute $0.05Pb(Mn_{1/3}Sb_{2/3})O_3-0.95Pb(Zr_{0.52}Ti_{0.48})O_3$ piezoelectric ceramics powder as starting material, to manufacture green sheets using Doctor Blade method. The optimum composition of slurry was studied. Moreover, the sintering properties and the dielectric and piezoelectric properties with variation a thickness of the manufactured sheets were investigated. The optimum of slurry was investigated by the rheology with addition of additives, the sintering condition was decided by TGA. And the properties of sheet were investigated through SEM. XRD. The optimum of slurry was the stablest at dispersant 3.0 wt% to solid loading 30vol%. After, at addition of binder/plasticizer(0.75/0.25) 3.0wt%, viscosity was 7.55Pa${\cdot}$s. The dielectric and piezoelectric properties of the sheet were increased a little with the increasing of sintering temperature but were not variable with variation of sheet thickness.
스포츠브랜드 매장기반 체험마케팅이 브랜드 자산, 고객태도, 구매의도에 미치는 영향
나찬수(Na, Chan-Soo),이지환(Lee, Ji-Hwan),정아람(Jung, A-Lam) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.6
The collected questionnaires were analyzed by using SPSS ver. 21, a statistical program. The data were processed statistically for frequency analysis, explorative factor analysis, reliability analysis, correlation analysis, and multiple regression analysis, which led to the following conclusions: First, the researcher looked into the effect of run club experiential factor on brand asset. The results showed that relationship and perception factor had a significant effect on brand awareness and that sensation, sensibility, and relationship factor had a significant effect on brand image while sensation, sensibility, perception, and relationship factor had a significant effect on brand loyalty. Second, the researcher investigated the effect of run club experiential factor on customer attitude, and the results showed that sensation, sensibility, perception, and relationship factor had a significant effect on customer attitude emotional factor while sensation, perception, and relationship factor had a significant effect on customer attitude perception factor. Third, the researcher examined the effect of brand asset on purchase intension, and the results showed that both brand awareness and brand loyalty had a significant effect on purchase intension. Fourth, the researcher verified the effect of customer attitude on purchase intension, and the results suggested that both customer attitude emotional factor and customer attitude perception factor had a significant effect on purchase intension.
비접촉식 광생체단층촬영 기술을 이용한 맥진 연구 -맥의 빠르기, 크기 및 맥력을 중심으로-
나창수 ( Chang Su Na ),윤대환 ( Dae Hwan Youn ),김영선 ( Young Sun Kim ),이창호 ( Chang Ho Lee ),정운상 ( Woon Sang Jung ),김지현 ( Jee Hyun Kim ),최찬헌 ( Chan Hun Choi ) 대한경락경혈학회 2009 Korean Journal of Acupuncture Vol.26 No.2
Objective: Optical Coherence Tomography (OCT) has emerged as an important optical imaging modality in non-invasive medical diagnostics. Hence, the aim of this study is to measure the similarity of the diagnosis by a traditional method using doctor`s hand for feeling of pulse and by the non-contact/non-invasive pulse analyzing system using OCT on Chon(寸), Kwan(關), Chuk(尺). Method: Four korean medical doctors and the non-contact/non-invasive pulse analyzing system using OCT have measured the rapidity, the dimension, and the power of pulse waves of 25 volunteers. First, four korean medical doctors measured pulse waves of volunteers. During measuring, four doctors were separated from each other and so were volunteers. And then, the pulse waves of volunteers were measured by OCT. This was performed on the right Chon(寸), Kwan(關), Chuk(尺). Results: The study showed that the traditional method and the OCT based method had the 88% matches on the values of the slow and rapid pulse condition (遲數), 64% matches on the values of the small and big pulse condition(微細弱緩大[洪]), and 72% matches on the values of the weak and strong pulse condition(虛實). Conclusions: Based on the high similarities of the measurements of two approaches, we suggest that the OCT based pulse diagnosis method is useful for compensating the traditional method for the pulse diagnosis.
류마트스 : 22세 남자에서 시상경색으로 나타난 신경정신루푸스 1예
나지선 ( Ji Sun Na ),정재식 ( Jae Sik Jung ),백종훈 ( Jong Hyun Bak ),기영재 ( Young Jae Ki ),김윤성 ( Yun Sung Kim ),김현숙 ( Hyun Sook Kim ) 대한내과학회 2012 대한내과학회지 Vol.82 No.6
전신홍반루푸스는 상대적으로 가임기 여성에서 흔하게 나타나지만 본 증례는 젊은 성인남자에서 전정신경 안진을 동반한 시상경색으로 나타난 신경정신루프스를 고용량 스테로이드와 싸이클로포스파마이드 충격요법을 사용하여 성공적으로 치료한 사례로 이에 고찰과 함께 보고하는 바이다. Systemic lupus erythematosus (SLE) is an autoimmune disease that can manifest systemically in many organs. It is most common in women of child-bearing age. Neuropsychiatric SLE is characterized by central nervous system (CNS) symptoms. CNS manifestations of SLE have been discovered in all parts of the brain, although thalamic infarcts associated with SLE are rare, especially in males. Here, we report a thalamic infarction in a 22-year-old male SLE patient.
한방건강검진(韓方建康檢診) 결과(結果)에 따른 생활행동(生活行動) 변화(變化)에 영향(影響)을 미치는 요인(要因)
나삼식,권소희,서지연,정해경,김유철,송용선,장두섭,이기남,Na Sam-Sik,Kwon So-Hui,Seo Ji-Yeon,Jung Hae-Kyoung,Kim Yoo-Chul,Song Yung-Sun,Jang Du-Seop,Lee Ki-Nam 대한예방한의학회 2003 대한예방한의학회지 Vol.7 No.1
This study tried to know the chang of lifestyle and the factors causing of lifestyle change by the outcome of oriental medical examination for labors in one of the automobile factories in Jeon Buk area. The results will be helpful to the effective health care for the labors in factory. Oriental medical examination was done 22 times from May 20 to June 19, 2002. The numbers of labor who received oriental medical examination were 531, and 300 questionnaires among them were collected. The results were as follows: 1) General characteristics of examinee for oriental medical examination; total 300 labors, high percentage in age range $31{\sim}45$ years old, mostly married, high percentage of high school in completion of study. High percentages in drinking, smoking, and working hour were less than 1 time per week, non-smoking, and above 10 hours, respectively. High percentages in working year and salary were $11{\sim}15$ years. 2) The degree of lifestyle change by the oriental medical examination had the highest score with consult of oriental medicine doctor, and the lowest score was from moire typography result. 3) The degree of lifestyle change by medical examination was highly influenced by the subject characteristics that were less than 1 time per week for drinking, non-smoking, and less than 10 years of working year. 4) For the lifestyle change by the cognition of subject, the subjects who had high confidence for oriental medical examination, high recognition for oriental medical examination's requirement, high concern for health. effective cognition for early detection of disease, had high degree of lifestyle change. 5) The variables that cause lifestyle change in Sasang constitutional analysis result were early detection of disease, type of smoking, working year, moire typography result, interview for health. The variables that cause lifestyle change in moire typography result were type of drinking, ages, working year, consult for health, moire typography result. The variables that cause lifestyle change in interview with oriental medicine doctor were constitutional analysis and moire typography result.