• Title/Summary/Keyword: Screen Performance

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The analysis on the screen design of terminal display (터미날 화면의 설계 특성에 관한 비교분석)

  • 황우상;이동춘
    • Proceedings of the ESK Conference
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    • 1995.10a
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    • pp.62-74
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    • 1995
  • This study surveys four characteristics (overall density, local density, grouping, complexity) to effect user's performance on the on-line terminal displays of commercial banks, and makes the new screen by the screen design procedure. The new screen includes to increase the number of groups and to arrange the items on the screen. And then, this study carrys out experiments to compare performance(operating time and error number ) by each screen. The result is described that the operating time decreases about 20% at the new OUT-screen than the existing OUT-screens; about 25% at the new IN-screen.

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An Experimental Study on the Thermal Performance of a Flat-Ship Heat Pipe with Inner Grooves and Screen Mesh Cover (내부에 그루브와 스크린 메쉬를 갖는 평판 스트립형 히트파이프의 열성능에 대한 실험적 연구)

  • Park Soo Yong;Boo Joon Hong
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.29 no.7 s.238
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    • pp.805-813
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    • 2005
  • The thermal performance of a flat-strip heat pipe with inner grooves and the screen mesh cover was investigated experimentally. The heat pipes were made of 2024 aluminum alloy of which the dimensions were 30 (W) $\times$ 4 (T) $\times$ 150 (L) mm. The cross sectional dimensions of inner groove were 0.4$\times$0.9 mm and the space between grooves was 0.6 mm. To enhance the capillary force, foe screen meshes were attached to cover the grooved inner surface. In the grooved heat pipes without screen mesh cover, the maximum thermal load of 180 W (12 W/$cm^2$) was achieved for operating temperature below $130^{\circ}C$ at horizontal position. The heat pipes with screen mesh cover showed the thermal resistances less than one third of those without screen mesh cover, and showed less fluctuation in the thermal resistance values. Furthermore, the thermal performance of the former exhibited less dependence on the tilt angle and the fill charge ratio.

A Study on the Capillary Limitation in Copper-Water Heat Pipes with Screen Wicks (스크린 윅을 삽입한 동-물 히트파이프에서 모세관 한계에 관한 연구)

  • 박기호;이기우;노승용;이석호;유성연
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.14 no.12
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    • pp.1023-1030
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    • 2002
  • This paper is to research the heat transfer characteristic performance of the copper-water heat pipe with the screen wicks. Recently, the semiconductor capacity of an electronic unit has been larger, on the contrary, its size has been much smaller. As a result, a high-performance cooling system is needed. Experimental variables are inclination angles, temperatures of cooling water and the mesh number of screen wicks. The distilled water was used for the working fluid. At the inclination angle $6^{\circ}$ in top heat mode, the two layers of the 100-mesh screen wick showed the best heat transfer performance. The thermal resistance of the two layers with the 100-mesh screen was 0.7~$0.8^{\circ}C$/W.

Screen Performance of the Korean Actress Kim Hye-Soo (영화배우 김혜수의 스크린 퍼포먼스)

  • Kim, Jong-Guk
    • Journal of Information Technology Applications and Management
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    • v.28 no.1
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    • pp.43-51
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    • 2021
  • This article explores Kim Hye-soo's film acting from the perspective of performance, which means a socio-cultural action planned and intended for a certain purpose. Through the aspect of screen performance which the identity of the era that the performance study aims for is expressed through acting and reappeared in a system of verbal and non-verbal symbols, it was intended to enhance the academic value of Korean film acting. First, Kim Hye-soo's acting performance transforms by repeating genre acting. The sensuality and sexual attractiveness that evaluates Kim Hye-soo are repeated by the typical vision required by genre films, but the acting performance is not consumed or subordinated as a tool for visual pleasure. Second, Kim Hye-soo's body, face, emotion and audio are engraved with memories of the times, and the sociocultural identity of the performance is expressed through dynamic interaction between actions and reactions. Third, Kim Hye-soo's restored and recreated performance is sensitive to the changes of the times and is still in the process.

Preparation of Conductive Leather Gloves for Operating Capacitive Touch Screen Displays (정전용량방식 터치스크린에 작동하는 전도성 가죽장갑 소재의 제조)

  • Hong, Kyung Hwa
    • Fashion & Textile Research Journal
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    • v.14 no.6
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    • pp.1018-1023
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    • 2012
  • Smartphone is integrated into the daily lives of all types of people not even young generation. A touch screen display is a primary input device of a smart phone, a tablet computer, etc. While there are many tough technologies in existence, resistive and capacitive are dominant and currently lead the touch screen panel industry. And a capacitive touch screen panel widely used in smart phones is coated with a material that stores electrical charges. In this study, we tried to manufacture gloves produced with electro-conducting leather as a tool to operate a touch panel screen. Therefore, electrically conductive materials, Polyaniline(PANI), Poly(3,4-ethylenedioxythiophene) (PEDOT), and Carbon nanotubes (CNT) were applied to the surface of leather to be used as a touching operator for capacitive touch screen panel. The leather samples were treated by simple painting method; firstly, they were painted with aqueous solution containing each of the electrically conductive materials and then dried. This cycle was repeated three times. Consequently, the treated leather samples showed electrical conductivity and reasonable working performance to the capacitive touch screen. And, PANI showed the best performance and highest electrical conductivity, and then PEDOT and, CNT in decreasing order. This is because the solubilities of PANI and PEDOT show higher than dispersibility of CNT. Thus, the concentration of conducting polymers was greater than that of CNT in the treating solutions.

Efficient Screen Splitting Methods - A Case Study in Block-wise Motion Detection

  • Layek, Md. Abu;Chung, TaeChoong;Huh, Eui-Nam
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.10 no.10
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    • pp.5074-5094
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    • 2016
  • Screen splitting is one of the fundamental tasks in different methods including video and image compression, screen classification, screen content coding and the like. These methods in turn support various applications in data communications, remote screen sharing, remote desktop delivery to assist teaching-learning, telemedicine, Desktop as a Service etc. In the literature we find systems requiring splitting assumes a fixed size split that do not change dynamically, also there is no analysis why that split is chosen in terms of performance. By doing mathematical analysis this paper first finds the efficient splitting schemes that can be easily automated to make a system adaptive. Thereafter, taking the screen motion detection as a case study, it demonstrates the effects of various splitting methods on motion detection performance. The simulation results clearly shows how classification performances varies with different splitting which will facilitate to choose the best splitting for a specific application scenario as well as making the system adaptive by providing dynamic splitting.

Analysis of Screen Content Coding Based on HEVC

  • Ahn, Yong-Jo;Ryu, Hochan;Sim, Donggyu;Kang, Jung-Won
    • IEIE Transactions on Smart Processing and Computing
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    • v.4 no.4
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    • pp.231-236
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    • 2015
  • In this paper, the technical analysis and characteristics of screen content coding (SCC) based on High efficiency video coding (HEVC) are presented. For SCC, which is increasingly used these days, HEVC SCC standardization has been proceeded. Technologies such as intra block copy (IBC), palette coding, and adaptive color transform are developed and adopted to the HEVC SCC standard. This paper examines IBC and palette coding that significantly impacts RD performance of SCC for screen content. The HEVC SCC reference model (SCM) 4.0 was used to comparatively analyze the coding performance of HEVC SCC based on the HEVC range extension (RExt) model for screen content.

Study on the Capillary Limitation in Copper-Water Heat Pipes with Screen Wicks

  • Park, Ki-Ho;Lee, Ki-Woo;Noh, Seung-Yong;Rhi, Seok-Ho;Yoo, Seong-Yeon
    • International Journal of Air-Conditioning and Refrigeration
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    • v.12 no.1
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    • pp.21-29
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    • 2004
  • This paper is to study the heat transfer performance of the copper-water heat pipe with screen wicks. Recently, the semiconductor capacity of an electronic unit becomes larger, but its size becomes much smaller. As a result, a high- performance cooling system is needed. Experimental variables are inclination angles, temperatures of cooling waters and the mesh number of screen wicks. The distilled water was used as a working fluid. Based on the experimental results, when the copper-water heat pipe of 6mm diameter is used at the top heat mode, the heat transfer performance of 100 mesh 2 layers heat pipe is better than that of 150 and 200 mesh. The thermal resistance of the two layers with the 100-mesh screen was 0.7-$0.8^{\circ}C$/W.

A Numerical Study for Optimum Design of Dust Separator Screen Based on Coanda Effect (코안다효과를 이용한 제진기 스크린의 최적설계를 위한 수치적 연구)

  • Yun, Seong-Min;Kim, Yong-Sun;Shin, Hee-Jea;Ko, Sang-Cheol
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.17 no.6
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    • pp.177-185
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    • 2018
  • There is a need to study dust separator screens with good drainage efficiency while effectively filtering suspended solids and other contaminants entering the intake pumping station, the drainage pumping station and the mediation pumping station, the cooling water inlet of the power plant, and the like. In this paper, Numerical studies were conducted for the optimal design of the dust separator screen using the Coanda effect. The shape of the dust separator screen is important, such as the right curvature radius $R_1$ at the top of the dust separator screen and the left curvature radius $R_2$ at the top, h is the height difference and shape between the screen and the accelerating plate, and ${\theta}$ is the inclination angle of the screen. A total of 4 shape factors were set and the effects of Coanda and drainage performance of each element were compared and analyzed, the optimum length and size of each shape element were derived by classifying the shape elements into direct and indirect influences. Finally, it was possible to effectively filter foreign matter by narrowing the screen spacing, and the drainage performance was analyzed and optimized through numerical studies of dust separator screen.

Dynamic Multi-frame Transmission Technology Using the WiMedia MAC for Multi-hop N-screen Services

  • Hur, Kyeong
    • Journal of information and communication convergence engineering
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    • v.14 no.1
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    • pp.21-25
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    • 2016
  • N-screen is a promising technology to improve support for multimedia multicasting, content sharing, content mobility, media scalability, and seamless mobility. In this paper, the WiMedia distributed-MAC (D-MAC) protocol is adopted for development of a seamless N-screen wireless service. Furthermore, to provide a multi-hop, one source multi-use N-screen service through point to point streaming in a seamless D-MAC protocol, a dynamic multi-frame transmission technology is proposed. In this technology, a dynamic time slot allocation scheme and a multi-hop resource reservation scheme are combined. In the proposed dynamic time slot allocation scheme, two thresholds, a hard threshold and a soft threshold, are included to satisfy the power consumption and delay requirements. A multi-frame DRP reservation scheme is proposed to minimize end-to-end delay during the multi-hop transmissions between N-screen devices. The proposed dynamic multi-frame transmission scheme enhances N-screen performance in terms of the multi-hop link establishment success rate and link establishment time compared to the conventional WiMedia D-MAC system.