• 제목/요약/키워드: Film Form

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Thermal Transitions of the Drawn Film of a Nylon 6/Layered Silicate Nanocomposite

  • Park Soo-Young;Cho Yang-Hwan
    • Macromolecular Research
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    • 제13권2호
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    • pp.156-161
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    • 2005
  • The thermal transitions of a nylon 6/layered silicate nanocomposite were studied by differential scanning calorimetry and in-situ synchrotron X-ray diffraction. The drawn film of the nylon 6/layered silicate nanocomposite typically showed three endotherms in the DSC thermogram; a very broad endotherm at $\sim120^{\circ}C(T_{1})$, a double-melting endotherm at $\sim215^{\circ}C(T_{2})$, and a high temperature endotherm at $\sim240^{\circ}C(T_{3})$. The drawn film of the nylon 6/ layered silicate nanocomposite was comprised of a mixture of the $\alpha and \gamma$ forms, with $the \alpha form$ being generated by drawing the pressed film having $the \gamma form$. The melting and crystallization of the crystals were observed at the above thermal transitions during the heating experiment performed at the Pohang X-ray synchrotron radiation source (4C2). The newly generated form was meta-stable and melted $at {\sim}T_{1}$. The double-melting $at {\sim}T_{2}$ was due to the exothermic crystallization of $the \alpha form$ during the main endothermic melting of $the \gamma form$. $The \alpha form$ crystallized $at {\sim}T_{2}$ and melted $at {\sim}T_{3}$.

구내염증 치료용 구강점막 필름제의 제제설계와 약제학적 성질 (Formulation and Pharmaceutical Properties of Mucoadhesive Film Containing Dipotassium Glycyrrhizate)

  • 이계주;이덕근;신광현;박종범
    • Journal of Pharmaceutical Investigation
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    • 제29권2호
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    • pp.127-136
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    • 1999
  • In order to eliminate demerits of conventional dosage forms, dipotassium glycyrrhizate was formulated as a slim mucoadhesive film type dosage form. The mucoadhesive drug layer gel containing dipotassium glycyrrhizate was prepared using $Noveon^{\circledR}$ AA-1, hydroxypropylcellulose-M, ethylcellulose N 100 and citric acid, and the protective layer gel by using ethylcellulose N 100, $Eudragit^{\circledR}$ RS and castor oil. The viscosity of drug layer gel of mucoadhesive film was enhanced as the increased amount of $Noveon^{\circledR}$ AA-1 or hydroxypropyl cellulose-M. The drug content was unifonnly $1160{\pm}14.6\;{\mu}g$, and was varied within 3.5%. The optimum film dosage form showed a good fluidity and malleability of drug layer, with 179 g of thickness, pH 5.7, 411 min of in vitro adhesion time and 172 g in gravity adhesive strength. The release time of drug from the mucoadhesive film was significantly shorter but was delayed when polymers such as ethylcellulose was added. From these results, the new mucoadhesive film may be effective for the treatment of aphthous stomatitis.

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패션 필름 유형에 따른 스토리텔링 특징 연구 (A Study on Characteristics of Storytelling by Fashion Film Categorization)

  • 김지예;서승희
    • 패션비즈니스
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    • 제21권4호
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    • pp.1-20
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    • 2017
  • Fashion film has become a significant communication medium in the $21^{st}$ century. Fashion film, that tells unique quality stories, is a means of communicating brand value emotionally. To examine characteristics of storytelling according to types of fashion film, this study categorizes fashion film and investigates storytelling elements in terms of content, form, and communication. For methodology, a literature review was conducted to examine the concept of storytelling and types of fashion film storytelling. Empirical research was conducted on 32 fashion films from 2007 to recent years of 2017. Results are as follow. First, theatrical fashion film, based on linear narrative structure and closed-ending, is characterized content-based storytelling. Second, avant-garde fashion film, based on unconventional and experimental cinematic techniques, is characterized form-based storytelling. Finally, documentary fashion film that minimizes distortion and reproduces reality of designers' originality, refers to interactive communication-based storytelling which using digital technologies.

Electrical Conduction Characteristics of a Thick-film Form Multiwalled Carbon Nanotubes for Field Electron Emitter

  • Lee, Yun-Hi;Kim, Hoon;Ju, Byeong-Kwon;Yu, Jae-Eun;Oh, Myung-Hwan
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2000년도 제1회 학술대회 논문집
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    • pp.53-54
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    • 2000
  • Measurements of the direct current resistivity, on multiwalled carbon nanotubes(MWNT) for field electron emitter source that had been screen printed in a thick film form were made as a function of temperature T in the range of 1.7K-390K. In this measuring temperature range, the electrical resistivity for the MWNT show that the main contribution to the conductivity comes form carries that hop directly between localized states executing variable range hopping processes. This thick-film form system for large area display showed a high bright light emission as well as very low turn-on field as like an individual MWNT system at room temperature. Furthermore, the electron emission characteristics followed well typical Fowler-Nordheim conduction under the vacuum.

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세라믹 분말재료의 EPD 후막형성 기술 (EPD Thick Film Formation of Ceramic Powder Materials)

  • 소대화;전용우
    • 동굴
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    • 제75호
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    • pp.49-54
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    • 2006
  • Electrophoretic Deposition (EPD) is the most convenient technology to deposit natural or oxide powders of nonconductive materials in alcoholic suspension solution with adding electrolyte of iodine to form ceramic thick film on metal substrate under applied electric field with double electric layer between electrode and metal substrate. In this research work, the important parameters and technical ways were studied to form EPD thick films of typical oxide ceramics of Al2O3, YBCO and tourmaline powders.

엑시머 레이저를 이용하여 동시에 형성된 실리콘 산화막과 다결정 실리콘 박막 (Silicon oxide and poly-Si film simultaneously formed by excimer laser)

  • 박철민;민병혁;전재홍;유준석;최홍석;한민구
    • 전자공학회논문지D
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    • 제34D권1호
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    • pp.35-40
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    • 1997
  • A new method to form the gate oxide and recrystllize the polycrystalline silicon (poly-Si) active layer simultaneously is proposed and fabricated successfully. During te irradiation of excimer laser, the poly-Si film is recrystallized, while the oxygen ion impurities injected into the amorphous silicon(a-Si) film are activated by laser energy and react with silicon atoms to form SiO2. We investigated the characteristics of the sample fabricated by proposed method using AES, TEM, AFM. The electrical performance of oxide was verified by ramp up voltage method. Our experimental results show that a high quality oxide, a pol-Si film with fine grain, and a smooth and clean interface between oxide and poly-Si film have been successfully obtained by the proposed fabrication method. The interface roughness of oxide/poly-Si fabricated by new method is superior to film by conventional fabrication os that the proposed method may improve the performance of poly-Si TFTs.

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초소형 디스크 요소기술 (Technologies for Small Form Factor Optical Disks)

  • 김진홍;김종환
    • 정보저장시스템학회:학술대회논문집
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    • 정보저장시스템학회 2005년도 추계학술대회 논문집
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    • pp.113-118
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    • 2005
  • Small form factor optical disks for near-field optics using solid immersion lens were developed. Disk durability properties in terms of head-disk interface (HDI) properties were investigated by drag test, diamond like carbon film and lubricant film were coated on the small form factor disk to enhance HDI. Disks with glass substrates and lubricant films after heat treatment showed more durable characteristics. Coverlayers made of UV resin were uniformly coated by spin coating In which the ski-jump could not be formed by adopting outer ring technique.

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초소형 디스크 요소기술 (Technologies for Small Form Factor Optical Disks)

  • 김진홍
    • 정보저장시스템학회논문집
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    • 제2권1호
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    • pp.26-31
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    • 2006
  • Small form factor optical disks for near-field optics using solid immersion lens were developed. Diamond like carbon film and lubricant film were coated on the small form factor optical disk to enhance the head-disk interface(HDI) characteristics. The disk durability properties in terms of HDI phenomena were investigated by drag test. Disks with glass substrates and the lubricant films experienced heat treatment showed more durable characteristics. Coverlayers made of UV resin were uniformly coated by spin coating in which the ski-jump could be removed by adopting outer ring technique

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

  • 김숙현
    • 한국콘텐츠학회논문지
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    • 제13권2호
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    • pp.100-107
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    • 2013
  • 아네스 바르다는 자신만의 영화세계를 구축해 온 프랑스의 대표적인 여성 영화감독이다. 특히 주관성과 객관성을 혼합하는 실험적인 방식은 가장 돋보이는 특성이다. 이를 뒷받침하는 방식은 고전적 영화 방식과 상이한 영화적 형식에 대한 탐구에서 비롯한다. 이러한 접근은 현대영화의 형식을 치밀하게 분석하여 구조를 발견하는 노엘 버치의 방법론과 같다. 그래서 아네스 바르다의 대표작 중 하나이면서 1985년 베니스영화제에서 황금사자상을 수상한 바 있는 <방랑자>를 대상으로 주제와 형식의 유기적 결합을 통한 현대영화의 구조 산출이라는 형식미학적 분석하고자 한다. 인간 사이의 관계성과 접촉의 회복을 표류하는 삶의 비극적 죽음을 통해 전달하고자 한 영화의 주제는 영화의 형식적 실험을 통해 새로운 영화적 구조를 낳았다. 그 형식적 실험은 영화의 도입부의 보이스오버와 파편적이고 반복적인 구성으로서 인물과 상황 제시 방식, 서사적 양식과 비서사적 양식의 배합, 그리고 영화적 물리적 질료성을 폭로하는 방식으로서 카메라의 움직임과 편집, 그리고 플래쉬백과 사운드의 독특한 사용으로 이루어져있다.

Synthesis of biodegradable films obtained from rice husk and sugarcane bagasse to be used as food packaging material

  • Gupta, Himanshu;Kumar, Harish;Kumar, Mohit;Gehlaut, Avneesh Kumar;Gaur, Ankur;Sachan, Sadhana;Park, Jin-Won
    • Environmental Engineering Research
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    • 제25권4호
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    • pp.506-514
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    • 2020
  • The current study stresses on the reuse of waste lignocellulose biomass (rice husk and sugarcane bagasse) for the synthesis of carboxymethyl cellulose (CMC) and further conversion of this CMC into a biodegradable film. Addition of commercial starch was done to form biodegradable film due to its capacity to form a continuous matrix. Plasticizers such as Glycerol and citric acid were used to provide flexibility and strength to the film. Biopolymer film obtained from sugarcane bagasse CMC showed maximum tensile strength and elongation in comparison to the film synthesized from commercial CMC and CMC obtained from rice husk. It has been observed that an increase in sodium glycolate/NaCl content in CMC imposed an adverse effect on tensile strength. Opacity, moisture content, and solubility of the film increased with a rise in the degree of substitution of CMC. Therefore, CMC obtained from sugarcane bagasse was better candidate in preparing biopolymer/biocomposite film.