• Title/Summary/Keyword: Black Film

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Transparent Conductive Single-Walled Carbon Nanotube Films Manufactured by adding carbon nanoparticles

  • Lee, Seung-Ho;Kim, Myoung-Soo;Goak, Jung-Choon;Lee, Nae-Sung
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2009.06a
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    • pp.417-417
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    • 2009
  • Although a transparent conductive film (TCF) belongs to essential supporting materials for many device applications such as touch screens, flat panel displays, and sensors, a conventional transparent conductive material, indium-tin oxide (ITO), suffers from considerable drawback because the price of indium has soared since 2001. Despite a recent falloff, a demand of ITO is expected to increase sharply in the future due to the trend of flat panel display technologies toward flexible, paper-like features. There have been recently extensive studies to replace ITO with new materials, in particular, carbon nanotubes (CNTs) since CNTs possess excellent properties such as flexibility, electrical conductivity, optical transparency, mechanical strength, etc., which are prerequisite to TCFs. This study fabricated TCFs with single-walled carbon nanotubes (SWCNTs) produced by arc discharge. The SWCNTs were dispersed in water with a surfactant of sodium dodecyl benzene sulfonate (NaDDBS) under sonication. Carbon black and fullerene nanoparticles were added to the SWCNT-dispersed solution to enhance contact resistance between CNTs. TCFs were manufactured by a filtration and transfer method. TCFs added with carbon black and fullerene nanoparticles were characterized by scanning electron microscopy (SEM), UV-vis spectroscopy (optical transmittance), and four-point probe measurement (sheet resistance).

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Effects of Black Polyethylene Film Mulching and Planting Density on Growth and Yield of Rehmannia glutinosa Libosch. (흑색비닐 피복 및 재식밀도가 지황의 생육 및 수양에 미치는 영향)

  • 김인재;김민자;남상영;이철희;손석용;박상일
    • Korean Journal of Plant Resources
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    • v.16 no.2
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    • pp.118-122
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    • 2003
  • These studies were carried out to clarify the effects of black P.E. mulching and planting density on the growth and rhizome yield of Jihwang #1, a new high yielding Rehmannia glutinosa variety. Emergence ratio was higher 3.1% in mulching than in non-mulching, but was not affected by planting density. Plant height and fresh leaf weight per plant were increased by mulching and at lower planting density. However, the fresh leaf weight per unit area was increased at higher planting density. Dry rhizome weight was increased 28% in mulching than that of non-mulching. Dry rhizome weight per plant was increased, but that of per unit area was decreased at lower planting density.

Effects of ta-C Coatings on Surface Characteristics of Dental Ni-Ti Files (치과용 Ni-Ti파일의 표면특성에 미치는 ta-C코팅효과)

  • Sun-Kyun Park;Han-Cheol Choe
    • Corrosion Science and Technology
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    • v.22 no.5
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    • pp.368-376
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    • 2023
  • Dental Ni-Ti files must ensure stability and resistance to fatigue fracture. DLC and ta-C were coated to remove defects on the surface and ensure stability, and the surface characteristics were investigated. When coated with DLC, it was black, and in case of ta-C coating, it was blue-black. Scratches, which are defects caused by mechanical processing, were formed on the surface of the un-coated Ni-Ti file from the end of the file along the direction of processing, with the Pro-file appearing in the vertical direction and the K-file appearing in the file direction. Scratches were reduced on the coated surface, and the surface roughness was greatly reduced after coating compared to before coating. The un-coated Ni-Ti file had the lowest hardness, the DLC-coated file had the highest hardness, and ta-C showed relatively high hardness. The elastic modulus of the DLC coating film was high, and the ta-C elastic modulus was low. The adhesion of the DLC coating film tended to be higher than that of ta-C, and the wear loss amount of DLC coating of taC was lower. The corrosion potential of the ta-C coating increased significantly, and the corrosion current density decreased.

A Study on Modern Chinese Black-and-White Documentary Photography -Focused on Photographs of Xie Hailong, Hou Denke, Xiao Quan (중국 근현대 다큐멘터리 흑백사진 연구 -시에 하롱, 호 뎅케, 샤오 촨 작품을 중심으로)

  • Tong, Shiyuan;Yang, Jong Hoon
    • The Journal of the Korea Contents Association
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    • v.15 no.12
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    • pp.97-105
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    • 2015
  • In the history of photograph, after the development of color photographs, those with multiple colors and high definition has gradually become the mainstream works in the field of photography. In the modern society of China that has been through reform and opening up, people's minds were increasingly liberated to widely accept color photos in terms of photography. Furthermore, the broad penetration of digital photography has brought together a new trend in the field of black-and-white photography. In line with this trend, more black-and-white photographs have appeared which are different from existing ones in the film-based period. In this recognition, the study seeks to compare the black-and-white documentary photograph works of Chinese photographers and analyze the modern Chinese black-and-white photographs.

A Study on the Evolution of Image Making through Costumes in the '007' Film Series ('007' 시리즈 영화 의상의 시대별 이미지 연출에 관한 연구)

  • Jang, Sung-Eun
    • Journal of the Korean Society of Costume
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    • v.59 no.1
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    • pp.106-118
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    • 2009
  • This research is about the changes in the images of Bond and Bond Girl in '007' Series. And it examined through the social background of England from 1960s to 2000s and the costume in the film. The results were as follows: As the era of young fashion was opened after 1960, there was a big change, but Bond was expressed as a hero who had strong male chauvinism of the English aristocratic circles. However, after 1990s, he wore comfortable clothes and he underwent all sorts of hardships. On the other hand, Bond Girl had the image of a sexual target. However, after 1990s, she had sharp appearance and smart brain. Besides, she had professional ideas of a given work and she was changed into a healthy image. Second, Bond's job was an English secrete agent, but Bond Girl had no particular job in 1960s. In 1980s, various professional jobs appeared and in 1990s and 2000s, the professional job which was directly related with Bond's duties appeared. Third, Bond's upper class image was expressed by tuxedo, suit, black, gray, navy, beige, brown, and ivory. His hair was 2:8 parting or Dandy all black style produced his dignified and neat image. After 1990s, he often had casual dress, which created a comfortable image. Bond Girl was expressed feminine style by bikini, underwear, long dress, sky-blue, violet, black, simple costume. After 1990s, she wore a suite, one-piece, or a combat uniform, which showed her professionalism. especially Bond Girl's red dress was used as a psychological color to express temptation, enemy, and betray.

Characteristics of Hydrogen and Carbon Production in Tubluar Reactor by Thermal Decomposition of Methane (Methane의 고온열분해에 의한 Tubluar reactor에서의 수소 및 탄소 생성 특성)

  • Lee, Byung Gwon;Lim, Jong Sung;Choi, Dae Ki;Park, Jeong Kun;Lee, Young Whan;Baek, Young Soon
    • Transactions of the Korean hydrogen and new energy society
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    • v.13 no.2
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    • pp.101-109
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    • 2002
  • This work was focused on the thermal decomposition of methane into hydrogen and carbon black without emitting carbon dioxide. Extensive experimental investigation on the thermal decomposition of methane has been carried out using a continuous flow reaction system with tubular reactor. The experiments were conducted at the atmospheric pressure condition in the wide range of temperature ($950-1150^{\circ}C$) and flow rate (250 - 1500 ml/min) in order to study their dependency on hydrogen yield. During the experiments the carbon black was successfully recovered as an useful product. Undesirable pyrocarbon was also formed as solid film, which was deposited on the inside surface of tubular reactor. The film of pyrocarbon in the reactor wall became thicker and thicker, finally blocking the reactor. The design of an efficient reactor which can effectively suppress the formation of pyrocarbon was thought to be one of the most important subjects in the thermal cracking of methane.

Selective Interactivity and Reflexive Intermediality: Focusing on the Neflix Film (선택의 상호작용성과 성찰의 상호미디어성: <블랙미러: 밴더스내치>를 중심으로)

  • Kim, Mookyu
    • The Journal of the Korea Contents Association
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    • v.21 no.8
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    • pp.60-68
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    • 2021
  • The purpose of this paper is to examine the formal characteristics of , which has been screened on Netflix since 2018. This film can be considered an interactive narrative because it gives viewers the opportunity to select their own narrative forks which lead to various endings. However, it also limits viewers' freedom of interactions in many ways, resulting in the pessimistic narrative world of series. In this contradictory situation, the conflict between the user's selectability and the narrator's authoriality emerges. And this collision gives rise to a complex form in which nonlinear interactive and linear narrative forms blend together. It can be understood as a form of self-reflection, such as forms of the metalepsis and breaking the fourth wall. In this paper, this particular form will be regarded as a sort of reflexive intermediality, i. e. the form for media reflexion.

A study of expressing social agenda in feature film (Focusing on the Coen brother's film "A big lebowski (1998)) (상업 영화 속 사회의제 표현에 대한 분석 (코엔형제의 영화 "위대한 레보스키(1998)"를 중심으로))

  • Lee, Tae-hoon
    • Journal of Digital Convergence
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    • v.15 no.6
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    • pp.399-406
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    • 2017
  • Contrary to the fact that the old films contain artistic and include contemporary literature, religion, and philosophy, latest films are produced with focusing on external interesting composition and sensational scene. A good movie emotionally express the directors' topic message exuding from an interesting story, and empathize with the social agenda which shows a sharp look of the directors' on contemporary social aspect. In the movies of the Coen brothers, it seems like an entertainment movie as typical black comedy genre through irony and happening, but in fact, it inserts a lot of social problems in the film to show that they cynically express their social agenda from a contemplative view. In their movie "The Big Lebowski (1998)", it seems like they are creating comical content through the main characters' unaffected attitude. However, it is director's excellent director of the sub-text that expresses American social issues such as Vietnam war, post-modernism and an obscurantist policy and au fond the comedy about the historical facts of mass production of social maladjustment into black comedy. We expect to contribute to make a step forward in the Korea film industry by analyzing such movies that has the cultural power of influence.

Red Carpet Fashion of Korean Film Festival (한국 영화제의 레드 카펫(Red Carpet) 패션)

  • Chung So-Young;Kim Ji-Young
    • The Research Journal of the Costume Culture
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    • v.13 no.6 s.59
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    • pp.946-959
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    • 2005
  • The purpose of this study was to examine the Korean red carpet fashion of Daejong, Bluedragon, Korean Film Awards from 2002 to 2004, focusing on nominates of female movie stars and presidents. Leading colors were black and white but pale and vivid colors were also chosen. Dresses were made of satin, chiffon, lace and velvet mainly, and patterned fabrics made strong statements among them. Based on the long and slim silhouette, there were lots of details using beads, sequins and crystal stones for manipulating lighting effects. Fur shawls along with diamond jewelry were favorite items of many stars. They preferred dresses of international brands to that of domestic brands. Esthetic qualities of red carpet fashion were categorized as decorative gorgeousness, sophisticated elegance, glamourous sensuality, paradoxical presentation, pure innocence, and Korean refinement.

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A Comparative Study on the Characteristics of Interactivity between Virtual Reality (VR) and Interactive Cinema

  • Jeong, Da-Hee
    • Journal of Multimedia Information System
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    • v.8 no.3
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    • pp.167-174
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    • 2021
  • This paper compares VR cinema with interactive cinema from an interactive perspective to examine cinemas as a new medium. Rather than revealing the difference through this, the focus is on presenting a methodology that understands the cinema in a new environment that is now standing at the starting point. The development of video technology is changing not only the external elements of content but also the internal storytelling method, but the lack of killer content has always been pointed out as a problem compared to the remarkable development of technology. Therefore, it is necessary to specify the characteristics and types of interactions represented by VR (virtual reality) and new media represented by interactive media and to present directions. Therefore, the types and characteristics of interactions were compared with VR film produced in line with the new phenomenon and interactive film . Through this, we would like to present the meaning and value of the new film format from a media perspective.