• Title/Summary/Keyword: 바르가

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Spectrometric determination of Nicotine alkaloid with barbituric acid buffer (바르비트릭산 완충액에 의한 니코틴 알카로이드의 비색 정량)

  • 김신일;김찬호
    • Journal of the Korean Society of Tobacco Science
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    • v.2 no.2
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    • pp.14-19
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    • 1980
  • The spectrophotometric determination of nictotine content with barbituric acid buffer solution was carry out. Absorption maximum for the proposed solution appeared at 505 nm and the absorbance remained stable for 15 minute at pH 4.2. Lambert-Beer law was proved to be applicable in the range of nicotine concentration of $7.5\mu{g}/ml$~$25\mu{g}/ml$. According to the analysis of nicotine contents in Burley and Flue-cured tobacco leaves by this method, the relative deviation was obtained to be 2.8% in comparision with the Griffith method.

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On the history of the establishment of the Hungarian Debrecen School of Finsler geometry after L. Berwald (베어왈트에 의한 헝가리 데브레첸 핀슬러 기하학파의 형성의 역사)

  • Won, Dae Yeon
    • Journal for History of Mathematics
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    • v.31 no.1
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    • pp.37-51
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    • 2018
  • In this paper, our main concern is the historical development of the Finsler geometry in Debrecen, Hungary initiated by L. Berwald. First we look into the research trend in Berwald's days affected by the $G{\ddot{o}}ttingen$ mathematicians from C. Gauss and downward. Then we study how he was motivated to concentrate on the then completely new research area, Finsler geometry. Finally we examine the course of establishing Hungarian Debrecen school of Finsler geometry via the scholars including O. Varga, A. $Rapcs{\acute{a}}k$, L. $Tam{\acute{a}}ssy$ all deeply affected by Berwald after his settlement in Debrecen, Hungary.

기획 2: 스승의 날 기념 인쇄학과 학과장 인터뷰 -중부대학교 인쇄미디어학과 신종순 교수

  • Im, Nam-Suk
    • 프린팅코리아
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    • v.10 no.5
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    • pp.88-101
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    • 2011
  • "스승의 은혜는 하늘같아서 우러러 볼수록 높아만 지네 참되거라 바르거라 가르쳐주신 스승의 마음은 어버이시다" 5월 15일은 스승의 날이다. 스승의 날은 스승에 대한 감사와 존경심을 되새기기 위한 날이다. 인쇄업계 발전을 위해 노력하는 대학교에서부터 고등학교까지 인쇄학과 학과장님의 이야기를 들어본다.

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Sorensen's Sorites and the Vagueness of 'Vague' (소렌센의 더미와 '모호함'의 모호함)

  • Lee, Jin-Hee
    • Korean Journal of Logic
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    • v.13 no.2
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    • pp.117-134
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    • 2010
  • In this paper, I attempted to show that 'Sorensen's Sorites' is not a successful argument for the vagueness of 'vague'. There are a lot of debates about it, but the central issue is whether Sorensen's Sorites is just small sorites; whether the vagueness certified by Sorensen's Sorites is just the vagueness of 'small'. Deas and Hull thought it was and rejected Sorensen's proof based on his sorites. But their rejection was rebutted by Varzi. The basis of his argument is that the subject of Sorensen's sentences - 'n-small' is vague - is not used but mentioned. I tried to reply on behalf of Deas and Hull and to show that the predicate 'vague' has not any effect on determining the truth value of "'n-small' is vague." Then it can be removed from the sentence. Of course I approve 'vague' is a homological term. What I do not agree with is only Sorensen's argument.

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Agnès Varda's Vagabond and Aesthetic (아네스 바르다의 <방랑자>와 형식적 실험)

  • Kim, Sook-Hyun
    • The Journal of the Korea Contents Association
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    • v.13 no.2
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    • pp.100-107
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    • 2013
  • Agn$\grave{e}$s Varda is a French representative female film director. In particular, the method combining subjectivity and objectivity is the most outstanding characteristics. However, it can be said that the method to support this is not only theme of the film but also creation of structure including the exploration for the filmic form different from classical film form. Such an approach accords with No$\ddot{e}$l Burch's refined analysis of filmic form. Therefore, This study aims to aesthetical analysis of the form of producing the structure in modern movies through which is one of the representative work by Agn$\grave{e}$sVarda and won the Golden Lion award in 1985 Venice Film Festival. The theme of the film, the recovery of relationships among people and contacts through the tragic death of drifting life, created a new filmic structure by formative experiment of the film. The formative experiment is the fragmented and repetitive construction with the introductory voice-over, and consists of movement and editing of camera and specific use of flashback and sound through the representation of figures and situations, mixture of narrative and non-narrative style.

A Stability Issue on Controlled ALOHA System with Capture Channel (신호 포획현상을 가지는 알로하 시스템의 안정성 고찰)

  • 곽경섭
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.18 no.12
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    • pp.1855-1869
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    • 1993
  • For the traditional ALOHA system without capture, the Markov chain obtained using the number of backlogged users at each slot if shown to be non-ergodic. So the infinite population ALOHA with fixed retransmission probabilities is unstable for any choice of the arrival rates and retransmission probabilities. The capture ALOHA system of also shown to be unstable for any arrival rate unless it has perfect. In this paper, we study a stabilization policy for capture ALOHA system that controls the retransmission probabilities and prove the stability of its multidimensional Markovian model by empolying a continuous Lyapunov function, and thus identify the stability region. We also study a delay performance through computer simulation th show the stability for any input rate below the maximum achievable channel throughput.

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Symbolism of Darkness in Jiri Barta's Animation (이지 바르타의 작품의 어둠의 상징성)

  • Kim, Ho;Kim, Jae-Woong
    • The Journal of the Korea Contents Association
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    • v.7 no.9
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    • pp.18-25
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    • 2007
  • A symbol is one of the images that represents individual elements, and it has the power of metaphoric delivery to its audiences. Symbols, in animation, allows the audience to perceive various descriptions as symbols, leading to variety of interpretation. And by providing psychologically deeper meaning to the audience, it enhances the symbolic value of the images. However, detailed study regarding symbol analysis leaves much to be desired. This paper is an semiological approach to the Czechoslovakia animator, Jiri Barta, and his symbolic images, with particular focus on the darkness symbols that appear in the Czech cultural characteristics.

WSN based ECG and Body temperature Monitoring System (센서 네트워크 기반의 심전도 및 체온 모니터링 시스템)

  • Lee, Dae-Seok;Bhardwaj, Sachin;Chung, Wan-Young
    • Proceedings of the Korea Institute of Convergence Signal Processing
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    • 2006.06a
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    • pp.113-116
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    • 2006
  • 최근 무선센서네트워크 기술을 이용한 다양한 시도가 이루어지고 있으며 특히 헬스케어분에서 활발히 연구되어지고 있다. 본 연구에서는 무선센서노드를 이용하여 계측된 생체신호를 바탕으로 환자의 상태 및 진단을 위한 기초자료를 활용하기 위한 시스템을 구현하였다. 생체신호로 ECG(electrocardiogram)와 체온 파라미터를 사용하였으며 ECG신호의 QRS특성점을 축출하기 위해 Pan&Tomkins에 개발된 알고리즘을 사용하였다. 또한 효율적인 모니터링을 위해 비정상적인 ECG신호에 대한 알림기능을 구현하였으며 이러한 감시기능은 상시 모니터링을 하지 않고도 환자의 상태를 알 수 있게 하였다. 본 연구에서 구현된 이러한 시스템기술은 국내의 고령화 문제로 발생되는 의료비용을 크게 감소시킬 수 있을 것으로 예상된다.

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A study on the expression of Bartok's 'Music for Strings, Percussion and Celesta' in 'Stretto House' of Steven Holl (스티븐 홀의 '스트레토 하우스'에서의 바르톡의 '현과 타악기와 첼레스타를 위한 음악'의 표현에 관한 연구)

  • 김영희
    • Korean Institute of Interior Design Journal
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    • no.39
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    • pp.45-53
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    • 2003
  • The purpose of this study is to grasp how B la Bartok's 'Music for Strings, Percussion and Celesta' was expressed in 'Stretto House' of Steven Holl. In conclusion, it is found that phenonenological temporality was expressed through the following equation: (equation omitted). More specifically, it is clarified that the stretto of the musical piece was expressed in the spatial overlapping of the house; the inversion, in the form change of the plan and section of the guest house; the symmetrical proportion and Golden Section, in the same proportion of the house section; the melody of theme, in the shape of the roof. This shows the possibility of approach to the substance of interior and architectural design through music.

Effects of 20% Aluminum Chloride Hexahydrate in Compensatory Hyperhidrosis (보상성 다한증에서 20% Aluminum Chloride Hexahydrate의 효과)

  • 이석열;이승진;이만복;이길노
    • Journal of Chest Surgery
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    • v.34 no.1
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    • pp.80-84
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    • 2001
  • 배경: 보상성 다한증은 다한증에서 흉강경하 교감신경수술후에 가장 많이 발생되는 합병증으로 환자의 만족도를 감소시킬 뿐 아니라 환자에게 또다른 부담을 주고 있다. 그러나 이러한 보상성 다한증에 대하여 현재까지 뚜렷한 치료법은 없는 실정이다. 이에 본 연구는 다한증 수술후 심한 보상성 다한증을 호소하는 환자들에게 20% Aluminum Chloride hexahydrate를 이용하여 발한감소효과를 관찰하고자 시행되었다. 대상 및 방법: 200년 5월부터 7월말까지 보상성 다한증으로 심한 불편을 호소하는 8명을 대상으로 약제의 효과를 관찰하였다. 보상성 다한증에 대하여는 1=없다(absent), 2=약간있다(mild), 3=눈에 보일정도의 발한이 있으나 생활에 불편은 없다(moderate). 4=일상생활에서 지장을 줄 정도롤 발한이 심하다(severe). 5=발한이 너무 심하여 일상생활이 불가능하다(disabling)로 구분하였다. 또한 보상성 다한증으로 인한 생활의 만족도는 1=Absolutely no satisfaction, 2=$\leq$25%, 3=<25-$\leq$50%, 4=<50-$\leq$75%, 5=<75-$\leq$100%로 구분하였다. 20% Aluminum Chloride Hexahydrate를 바르기전과후의 수치변화를 Wilcoxon signed rank test를 이용하여 비교 분석하였다. 결과: 보상성다한증으로 인한 발한의 정도는 치료전에 4.25$\pm$0.46에서 치료후에 2.88$\pm$0.64로 감소하였으며(p=0.009), 만족도는 치료전이 1.25$\pm$0.46였고 치료후의 만족도는 4.00$\pm$1.07로 만족도의 상승을 볼수있었다(p=0.011). 결론: 20% Aluminum Chloride Hexahydrate를 사용하여 증상완화와 생활의 만족도상승을 볼 수 있었다. 그러나 많은 수의 환자들을 대상으로 장기적인 연구가 좀더 필요하리라 사료된다.

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