• Title/Summary/Keyword: Transparency

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Effect of Particle Size Distribution of Glass Frit on the Transparency of Transparent Dielectric Layer for Plasma Display Panel

  • Park, Ji-Su;Han, Sun-Mi;Hwang, Jong-Hee;Lim, Tae-Young;Kim, Kwang-Jin;Masaki, Takaki
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.555-557
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    • 2004
  • We report the effect of the particle size (D50) and PSD (Particle Size Distribution) of glass frit on the transparency of transparent dielectric layer of PDP. The milling efficiency of wet milling with water was the best among the dry milling, wet milling with IPA and wet milling with water. The transparency increased with the reduction of particle size of glass frit as the milling time increased. Also the transparency changed by the PSD of glass frit. Glass frits of broad PSD showed high transparency compared with the glass frits of sharp PSD.

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The Effect of Wet Milling on Transparency of Transparent Dielectric in PDP

  • Han, Sun-Mi;Park, Ji-Su;Hwang, Jong-Hee;Lim, Tae-Young;Kim, Kwang-Jin;Masaki, Takaki
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.558-560
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    • 2004
  • We report the effect of wet ball milling conditions on the transparency of glass frit. Generally, the particle size of glass frit decreased as the milling time increased. And the transparency of glass frit changed with the particle size variation. The transparency of glass frit A increased as the milling time increased. But, the transparency of glass frit B, containing high $B_2O_3$ decreased as the particle size decreased. It seems to be the result of chemical reaction with water and glass frit.

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Transparency Effects and Visual Lightness of Architectural Space Environment (건축 환경의 투명성 효과와 경량적 표현)

  • 김선영
    • Korean Institute of Interior Design Journal
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    • v.13 no.2
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    • pp.46-55
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    • 2004
  • While transparency in general refers to the structure that is optically luminant or pleasant in its lightness, it is often synonymous with the concept of "modernistic." The advancement in construction and design technologies and the development of new materials with versatility adds even further diversity to transparency in architectural expression. The purpose of this study is to analyze various conceptions about transparency effects by comparing diverse expressions of visual lightness effects in space design. For this, I categorize and exemplify visual lightness effects of space applied to transparent materials. I argue that by utilizing transparent materials, the perception of space as well as boundaries between exterior and interior can be profoundly transformed. Space that overlaps through transparent boundaries creates atmosphere which deepens the architectural space environments.ironments.

Toward the Personal Robot Software Framework

  • Kim, Hong-Ryeol;Kim, Dae-Won;Kim, Hong-Seok;Lee, Ho-Gil
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.117.2-117
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    • 2002
  • In this paper, a software framework is proposed for the personal robot located on home network. The proposed software framework is divided into four layers-a transparency layer, a behavior layer, a distributed task layer, and a mission scenario layer. The transparency layer consists of a virtual machine for platform transparency, and a communication broker for communication transparency among behavior modules. The communication architecture includes both server/client communication and publisher/subscriber communication. A mission scenario is assumed to be a composition of sequentially planned distributed tasks. In addition to the software framework, a new concept, personal robot design cent...

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Estimation of Transparency from the AVHRR Channel 1 Digital Number of NOAA Satellite in the southeastern Yellow Sea (NOAA 원격자료에 의한 황해 남동부 투명도의 추정)

  • 서영상;한상복;강용균
    • Korean Journal of Remote Sensing
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    • v.9 no.2
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    • pp.1-5
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    • 1993
  • Real time transparency estimation method was studied using AVHRR Channel 1 (Visible band, 0.58 - 0.68 $\mu\textrm{m}$) digital number (DN) of NOAA Satellite. The relationshop between the measured transparency and the digital number shows following exponential equation in the southeastern Yellow Sea : Tr = 4820 $\times$ exp (-0.082 $\times$ DN), 77 $\leq$ DN < 105 where Tr is the transparency in meters and DN is the digital number of AVHRR Channel 1. From this equation, real time transparency can be simply estimated using data from the NOAA Ground Station of National Fisheries Research and Development Agency.

Design and Implementation of TinyOS Supporting Sensor Transparency of Sensor Nodes (센서노드의 센서 투명성을 지원하는 TinyOS의 확장)

  • So, Sun-Sup;Eun, Seong-Bae;Kim, Byung-Ho
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.9
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    • pp.2127-2133
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    • 2010
  • In this paper, we proposed an architecture for supporting sensor transparency in sensor node operating systems, design the standard APIs (Application Programming Interfaces) and sensor device abstraction to provide the sensor transparency and implemented the sensor transparency in the TinyOS, the most well known sensor node operating system. With the proposed sensor node operating system which can support the sensor transparency, application developers can develop the target applications independent to each sensor device by using the standard APIs provided by the sensor node operating system and the sensor device manufacturers also can develop sensor device drivers by using the standard hardware interfaces and HAL (Hardware Adaptation Layer) interfaces independent to the specific hardware platform of sensor nodes.

A Study on the Exhibit Environmental Design through the Transparency of the Cubism (큐비즘에서의 투명성 개념에 의한 전시환경디자인 연구)

  • 김호연
    • Korean Institute of Interior Design Journal
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    • v.13 no.5
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    • pp.154-161
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    • 2004
  • When people visit other countries, the first place to go would be either a museum or an art gallery because it might be the most effective way that people could understand culture and history of the place in a short time. It can be alleged that a museum must be an important cultural space because people can experience their life, history and art there. According to these cultural importance, the purpose of this study is to suggest the environmental design of $\boxDr$Design Museum$\boxUl$ through the Transparency of the Cubism. The Transparency means a capability of transmitting light so that objects on the other side can be seen clearly. The Concept of the Transparency could be taken effects in architecture by overlapping facets or space. By understanding formative properties of the Cubism, which especially focused on Transparency, 1 would like to propose the environment as an art and the exhibition-environment as a way of communication. As it were, the study can be valued as a new approach on condition that formative feature is interpreted with modern terms and the ‘Digital technology’ is not used a tool of representation but a tool of thought in terms of design. Moreover, it has a great significance that formative language of the Cubism will be able to be applied to the environmental design through the experimental and creative design process.

Transparency Implementation for Bilateral Teleoperation System by using Two-channel Control Architecture (2채널 제어 구조를 사용한 양방향 원격조종 시스템의 투명도 구현)

  • Kim, Jong-Hyun;Chang, Pyung-Hun;Park, Hyung-Soon
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.27 no.11
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    • pp.1967-1978
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    • 2003
  • Transparency has been considered as a performance measure in bilateral teleoperation system. Therefore, many issues of transparency have been studied. This paper investigates the transparency in two-channel control architectures. At first, we show the feasibility using analytic transparency-conditions and present the two classes of two-channel control architecture, which are perfectly transparent under ideal situation. In addition, remedies to problems due to impedance model estimation errors under real situation are introduced. They are as fellows; design guideline of control parameters to reduce the effect of model estimation error effect and introduction of time delay estimation for unknown dynamics. From these analyses, the systematic control scheme, which is stable and well transparent under real implementation, is proposed in two-channel control architecture. Finally, the proposed scheme is applied to a 2 D.O.F master-slave system and the experimental results show the validity of the theoretical work.

Determination of Age in Humans from Root Dentin Transparency (치근부 상아질 투명층의 증령적 변화에 관한 연구)

  • 석대현;김종열
    • Journal of Oral Medicine and Pain
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    • v.7 no.1
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    • pp.59-65
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    • 1982
  • For the purpose of estimation of age based on changes in the human root dentin transparency, 173 extracted teeth in each part of upper & lower Lt. & Rt. central, lateral incisors to Lt. & Rt. 2nd premolars were evaluated and analized in terms of root dentin transparency. The results are as follows : 1. It was reconfirmed that there exisits coparatively close correlatonship between age and the root dentin transparency. 2. It was proved that the correlation between the changes in the length and the area of the root dentin transparecy in accordance with the ages of each tooth was highest at the upper central incisor, and next at the low central incisor and the upper second premoloar respectively. 3. In the analysis of the age of the transparency, the error was less in the measurement of the area than in the measurement of the length in regard to the estimation of age. 4. The results from the test of the upper central incisor were boiled down to the following linear equation about the correlation among the area and the length of the transparency, and the age: Y=6.94X+14.7(r=0.59) (Y:estimated age, X:length mm) Y=138.47X+12.31(r=0.72) (Y:estimeted age, $X:area\textrm{cm}^2$)

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Seasonal Variation of Transparency in the Southeastern Yellow Sea (황해 남동해역 투명도의 계절 변화)

  • CHOI Yong-Kyu;KWON Jung-No
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.31 no.3
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    • pp.323-329
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    • 1998
  • The data of Secchi disc observation collected during $1966\~1990$ were analyzed to investigate the seasonal variation of transparency in the southeastern Yellow Sea. The bimonthly distribution of mean transparency showed that the isolines of transparency were roughly parallel to the isobaths. The transparency was low (3 m in february and 8 m in August) if the shallow water less than 20 m depth in comparition to the higher values (10 m in february and 17 m in August) in the deeper water. The lowest transparency was found in winter. The transparency increased in spring and the highest transparency occurred in summer. The water becomes turbid in autumn. Suspended solid concentrations in winter are ranged from 28 to 130 $mg/{\ell}$, and from 8 to 60 $mg/{\ell}$ in summer. The seasonal variation of transparency seems to be mainly affected by resuspension of solid from the bottom. The amounts of suspended solid are large in winter due to the vertical convection by cooling effect and tubulence by the strong wind, and small in summer due to the strong stratification and weak wind.

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