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인터뷰 / 문형남 숙명여자대학교 정보통신대학원 주임교수

  • 신종훈
    • 디지털콘텐츠
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    • 2호통권117호
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    • pp.33-35
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    • 2003
  • 지난해 12월 국내에서는 처음으로 디지털콘텐츠 관련 석사과정이 개설됐다. 숙명여대 정보통신대학원이 올해부터 디지털콘텐츠 전공 석사과정을 정식 교과과정으로 신설하기로 결정한 것이다. 이제까지 국내에서는 일부 사이버대학의 학부에 비슷한 과정이 개설되었지만 석사과정에 디지털콘텐츠를 전문으로 교육하는 과정이 개설되기는 이번이 처음이다. 국내에서 처음으로 디지털콘텐츠 석사과정을 맡게 된 문형남(43) 숙명여대 정보통신대학원 주임교수를 만나 앞으로의 과정 운영방안을 들어봤다.

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Surface Modification of MgO Microcrystals by Cycles of Hydration-Dehydration

  • 김해진;강진;송미영;박선회;박동곤;권호진;남상성
    • Bulletin of the Korean Chemical Society
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    • 제20권7호
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    • pp.786-790
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    • 1999
  • Relatively inert surface of microcrystalline MgO was modified into chemically active one by carrying out controlled hydration followed by dehydration at elevated temperature under dynamic vacuum. Even though the treatment by the first cycle of hydration-dehydration did not alter the porosity of MgO, it largely enhanced surface reactivity of the MgO toward adsorbed water, turning its outer layer into brucite upon rehydration. Treatment by the second cycle of hydration-dehydration generated micropores, and slit-shaped mesopores, raising the porosity of the MgO. The overlayer of Fe2O3 of the core/shell type composite magnesium oxide enhanced this surface modification, turning its surface into more porous and more active one than that of uncoated MgO, after the treatment by the hydration-dehydration.

Crystallization of Forsterite Xerogel under Carbon Dioxide: A New Crystalline Material Synthesized by Homogeneous Distribution of Carbonaceous Component into Forsterite Xerogel

  • 송미영;김수주;권혜영;박선희;박동곤;권호진;권영욱;James M. Burlitch
    • Bulletin of the Korean Chemical Society
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    • 제20권5호
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    • pp.517-524
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    • 1999
  • By heating the magnesiumsilicate (Mg2SiO4:forsterite) xerogel in carbon dioxide, carbonaceous component was intentionally introduced into the amorphous solid precursor. Carbon was introduced homogeneously as unidentate carbonate. Upon being heated at 800 。C in carbon dioxide, the xerogel which had homogeneously distributed carbonaceous component in it crystallized into a single phase product of a new crystalline material, which had approximate composition of Mg8Si4Ol8C. The powder X-ray diffraction pattern of the new crystalline material did not match with any known crystalline compound registered in the powder diffraction file. Crystallization from amorphous xeroget to the new crystalline phase occurred in a very narrow range of temperature, from 750 。C to 850 。C in carbon dioxide, or in dty oxygen. Upon being heated above 850 。C, carbonaceous component was expelled from the product, accompanied by irreversible transition from the new crystalline material to forsterite.

웹소켓을 이용한 실시간 커뮤니케이션 서비스 시스템 구현 (Implementation of a Real-Time Communication Service System Using WebSocket)

  • 김나영;신다영;최혜진;심준호;이기용
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2013년도 추계학술발표대회
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    • pp.553-555
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    • 2013
  • 본 논문은 HTML5의 새로운 표준인 웹소켓(WebSocket)을 이용하여 구현한 실시간 커뮤니케이션 시스템을 소개한다. 본 논문에서 구현한 시스템은 PC의 브라우저와 모바일 디바이스 모두를 통해 접근이 가능하다. 본 논문에서 구현한 실시간 커뮤니케이션 서비스 시스템은 이벤트 기반의 비동기 방식을 채택함으로써, 클라이언트가 리로드(reload)하지 않더라도 필요한 정보를 빠르게 제공한다. PC의 브라우저가 접근하는 부분은 Node.js를 사용하여 구현하였으며, 모바일 디바이스가 접근하는 부분은 PhoneGap 플랫폼을 사용하여 구현하였다. 본 논문에서는 시스템의 전체 구조와 관련 기술을 설명하고, 구체적인 구현 코드의 일부를 제시하며, 추후 확장 가능성과 비전을 제시한다.

Further Studies on Anti-angiogenic Activity of Gardenia jasminoides Fruit

  • Kim, Sun-Hyoung;Koo, Hye-Jin;Won, So-Young;Jung, Hyun-Joo;Park, Eun-Hee
    • 대한약학회:학술대회논문집
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    • 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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    • pp.266.1-266.1
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    • 2002
  • Gardenia jasminoides Ellis has been used in traditional medicine for the treatment of inflammation. jaundice, headache, fever and hypertension. The 70% ethanolic extract of gardenia fruit was previously shown to possess strong anti-angiogenic activity in the CAM assay. In this work, hexane, ethyl acetate. n-butanol and aqueous fractions were prepared in succession from the 70% ethanolic extract. (omitted)

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현장 데이터셋과 딥러닝 기술을 이용한 대화 utterance 유사성 판별 (Similarity Determination of Conversational Utterances Using Field Dataset and Deep Learning Technology)

  • 김주희;이은서;남지희;고나경;배상환;심준호
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2022년도 추계학술발표대회
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    • pp.568-570
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    • 2022
  • 객체 유사도를 판별하는 기술은 정보 처리의 여러 분야에서 응용되고 있다. 본 연구에서는 현장 자연어 텍스트 데이터셋과 딥러닝 모델을 이용하여 챗봇 등에서 응용되는 데이터 유사성을 판별하고, 해당 모델의 성능을 측정해보았다.

아동의 간식섭취가 주의력 결핍 과잉행동에 미치는 영향 (The Effect of Snack Intake of Preschoolers on ADHD)

  • 주나미;김성희;박희나;이소영;김민정;정경숙
    • 한국식생활문화학회지
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    • 제21권2호
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    • pp.193-201
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    • 2006
  • The purpose of this study was to examine the relationships of snack intake and ADHD (Attention Deficit Hyperactivity Disorder) among 284 children aged $4{\sim}7$ years. The degree of ADHD (Attention Deficit Hyperactivity Disorder) were assessed by both children's mother and their teachers using Behavior check list. The subjects who had a higher ADHD (Attention Deficit Hyperactivity Disorder) score ate more pizza, hamburger, chicken, processed milk, carbonated beverage. These results indicate ADHD (Attention Deficit Hyperactivity Disorder) were related positively for snack(pizza, hamburger, chicken, processed milk, carbonated beverage etc.) intake.

마분말 첨가 머핀 제조조건 최적화 (The Optimization of Muffin with Yam Powder Using Response Surface Methodology)

  • 주나미;이선미;정희선;박상현;정아람;유승연;이지희;정현아
    • 한국식생활문화학회지
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    • 제23권2호
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    • pp.243-251
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    • 2008
  • This purpose of this study was to develop a functional muffin by adding yam powder in the shape of a muffin as a partial surrogate for wheat flour. The yam has been found to be effective for liver and kidney function, as well as the digestion of protein, since it produces glucuronic acid in the body. Therefore, the purpose of this study was to determine the optimal mixing conditions of yam muffins by adjusting the amounts yam powder, butter, and sugar. The mixing conditions for the yam muffins included 3 categories: yam powder $(X_1)$, sugar $(X_2)$, and butter $(X_3)$ by Central Composite Design (CCD) which was optimized by Response Surface Methodology (RSM). The effects of the three variable additions on muffin quality were examined via physical and chemical experiments, such as the analysis of texture (hardness, cohesiveness, springiness, gumminess), coloration (lightness, redness, yellowness), and height. Lastly, we performed a sensory test, which revealed significant findings for gumminess, color, appearance, flavor, softness (p<0.05), redness, and overall quality (p<0.01). Consequently, the optimal mixing rate which best satisfied the sensory items were 34.35g of yam powder, 80.15 g of sugar, and 80.55 g of butter.

Synthesis of $Li_xNi_(0.85)Co_(0.15)O_2$ by the PVA-procursor Method and the Effect of Air Flow During the Pyrolysis

  • 권호진;김근배;김수주;송미영;박선희;권혜영;박동곤
    • Bulletin of the Korean Chemical Society
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    • 제20권5호
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    • pp.508-516
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    • 1999
  • Polycrystalline powder of LixNi0.85Co0.15O2 was synthesized by pyrolyzing a powder precursor obtained by the PVA-precursor method. Coin cells of lithium-ion rechargeable battery were assembled, whose the cathodes were fabricated from the crystalline powders of LixNi0.85Co0.15O2 synthesized by the method. The effect of synthetic variation on the property of the cell was tested by carrying out 100 consecutive cycles of charge-dis-charge on the cells. The property of the cell was largely influenced by the pyrolysis conditions applied for the synthesis of the LixNi0.85Co0.15O2. Depending on whether the pyrolysis was carried out in standing air or in the flow of dry air, the discharge capacity and cycle-reversibility of the cell varied in large extent. When the powder precursor was pyrolyzed in standing air, a minor phase of lithium carbonate was remained in the LixNi0.85Co0.15O2. The carbon containing powder precursor had to be pyrolyzed in the flow of dry air to eliminate the minor phase. In the flow of dry air, the lithium carbonate in the precursor was eliminated over 500-700。C without any prominent heat event. By controlling the flow of air over the precursor during its pyrolysis, particle size could also be altered. The effect of flowing dry air, during first step pyrolysis or during second step heat treatment, on the property of the cell was discussed.