• Title/Summary/Keyword: Multi-PC

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A Study on the Improvement of Multi-Layer Coating Method on Concrete Base (성형 콘크리트 복층마감도장 공법 개선에 관한 연구)

  • Kim, Chong-Weon;Choi, In-Sung
    • Journal of the Korea Institute of Building Construction
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    • v.3 no.1
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    • pp.93-105
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    • 2003
  • The Precast Concrete(PC) method was developed for a large production of a structure in Europe. Afterwards, this PC method has been applied to a structure and an outside Coating of buildings extensively. The outside Coating of the building applied this PC method is a method to put tiles or stones to base concrete. And there is a method to use paints for, so the expression of various patterns is possible. The Multi-Layer Coating is one of the methods to use paints. This Multi-Layer Coating method can show various designs of external appearance with Foam when it is made with the PC panel. Also, the paint film of the PC panel enables a splendid appearance, and a protective function of concrete is possible, too. Therefore, it makes good durability of the PC. Besides, maintenance is easy to manage because it is free from pollution when it uses metallic materials, stones, or any other materials. You might have no trouble in applying the Multi-Layer Coating method in order to save a merit of an outside Coating on the PC panel. However, the Multi-Layer Coating method used as a current outside Coating method has pollution and bad working environment because Oil Epoxy Resins have toxicity and flammability. Therefore, a lot of warnings are required for coating work in order to have appropriate quality because working hours are short, and production efficiency is low too. These reasons make the cost of construction of the Multi-Layer Coating method increase. And employers or designers may have problems in selecting this Multi-Layer Coating method. Therefore, the purpose of this study is to get activation of the Multi-Layer Coating method by offering improvement measures about the problems of the existing Multi-Layer Coating method.

Influence of a Stacked-CuPc Layer on the Performance of Organic Light-Emitting Diodes

  • Choe Youngson;Park Si Young;Park Dae Won;Kim Wonho
    • Macromolecular Research
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    • v.14 no.1
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    • pp.38-44
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    • 2006
  • Vacuum deposited copper phthalocyanine (CuPc) was placed as a thin interlayer between indium tin oxide (ITO) electrode and a hole transporting layer (HTL) in a multi-layered, organic, light-emitting diode (OLEOs). The well-stacked CuPc layer increased the stability and efficiency of the devices. Thermal annealing after CuPc deposition and magnetic field treatment during CuPc deposition were performed to obtain a stacked-CuPc layer; the former increased the stacking density of the CuPc molecules and the alignment of the CuPc film. Thermal annealing at about 100$^{circ}C$ increased the current flow through the CuPc layer by over 25$\%$. Surface roughness decreased from 4.12 to 3.65 nm and spikes were lowered at the film surface as well. However, magnetic field treatment during deposition was less effective than thermal treatment. Eventually, a higher luminescence at a given voltage was obtained when a thermally-annealed CuPc layer was placed in the present, multi-layered, ITO/CuPc/NPD/Alq3/LiF/AI devices. Thermal annealing at about 100$^{circ}C$ for 3 h produced the most efficient, multi-layered EL devices in the present study.

User-Oriented Controller Design for Multi-Axis Manipulators (다관절 머니퓰레이터의 사용자 중심 제어기 설계)

  • Son, HeonSuk;Kang, DaeHoon;Lee, JangMyung
    • IEMEK Journal of Embedded Systems and Applications
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    • v.3 no.2
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    • pp.49-56
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    • 2008
  • This paper proposes a PC-based open architecture controller for a multi-axis robotic manipulator. The designed controller can be applied for various multi-axes robotic manipulators since the motion controller is implemented on a PC with its peripheral devices. The accuracy of the controller based on the computed torque method has been measured with the dynamic model of manipulator. Since the controller is implemented in the PC-based architecture, it is free from the user circumstances and the operating environment. Dynamics of the manipulator have been compensated by the feed forward path in the inner loop and the resulting linear outer loop has been controlled by PD algorithm. Using the specialized language, it can be more efficient in programming and in driving of the multi-axis robot. Unlike the conventional controller that is used to control only a specific robot, this controller can be easily changed for various types of robots. This paper proposes a PC-based controller that has a simple architecture with its simple interface circuits than general commercial controllers. The maintenance and the performance of the controller can be easily improved for a specific robot. In fact, using a Samsung multi-axis robot, AT1, the controller performance and convenience of the PC-based controller have been verified by comparing to the commercial one.

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Volume Rendering Using Multi-Textures (Multi-Textures를 이용한 Volume Rendering)

  • 박재영;이병일;최흥국
    • Proceedings of the Korea Institute of Convergence Signal Processing
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    • 2000.12a
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    • pp.169-172
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    • 2000
  • Direct volume rendering has yet been restricted to high-end graphic workstations and special-purpose hardware, due to the large amount of trilinear interpolation, that are necessary to obtain high image quality. In this paper, we implemented the volume rendering techniques using the 2D-texture at the environment of standard PC hardware. In addition, we show how multi-texturing capabilities of modern PC graphics board are enable to volume rendering. Besides using extended OpenGL function, we improved pixel operations and rendering capacity.

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Responses in growth performance and nutrient digestibility to a multi-protease supplementation in amino acid-deficient broiler diets

  • Cho, Hyun Min;Hong, Jun Sun;Kim, Yu Bin;Nawarathne, Shan Randima;Choi, Inchul;Yi, Young-Joo;Wu, Di;Lee, Hans;Han, Seung Eun;Nam, Ki Taeg;Seoung, Eun Il;Heo, Jung Min
    • Journal of Animal Science and Technology
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    • v.62 no.6
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    • pp.840-853
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    • 2020
  • The present study was conducted to investigate the effect of a multi-protease on production indicators of broiler chickens fed a crude protein and amino acid deficient-diets for 35 days immediately after hatch. A total of 448 one-day-old Ross 308 male broiler chicks were allocated in a completely randomized design into one of eight dietary treatments (positive control [PC], negative control [NC: minus 0.5% from PC, and minus 2% of lysine, methionine, threonine and methionine plus cysteine], extreme negative control [ENC: minus 1% from PC, minus 4% of lysine, methionine, threonine and methionine plus cysteine], and plus multi-protease 150 or 300 g per ton [e. g., PC-150]; PC, PC-150, NC, NC-150, NC-300, ENC, ENC-150, ENC-300) to give eight replicates with seven birds in a battery cage. Body weight, average daily gain, average daily feed intake, feed conversion ratio, and mortality were measured every week. Carcass traits, proximate analysis of breast meat, and ileum digestibility were analyzed on day 21 and 35. Feeding a multi-protease (i.e., more than 150 g/ton) for 35 days immediately after hatching improved feed efficiency and ileum digestibility (i.e., dry matter, crude protein, and energy) compared to their counterparts (i.e., diets without multi-protease: PC, NC, and ENC). In conclusion, our results indicated that broiler chickens fed nutrients deficient-diet (i.e., crude protein and amino acids) supplemented a multi-protease had an ability to compensate and (or) improve their growth performance commensurate with increased ileal digestibility for 35 days immediately after hatch.

Design and Implementation of PC-Mechanic Education Application System Using Image Processing (영상처리를 이용한 PC 내부구조 학습 어플리케이션 설계 및 구현)

  • Kim, Won-Jin;Kim, Hyung-Ook;Jo, Sung-Eun;Jang, Soo-Jeong;Moon, Il-Young
    • The Journal of Korean Institute for Practical Engineering Education
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    • v.3 no.2
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    • pp.93-99
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    • 2011
  • We introduce the application what using the MultiTouch-Table of the PC-mechanic Certification. Thesedays, People does't use the Mouse and Keyboard and use people gesture. We introduce Graphic and Image by addition. Theseday, MultiTouch-Table is so famous. We use it the multitouch-table to on 3D Maxs and C#. We help them to get the certification using the component Scale and Drags through the camera view and then include the PC-Mechanic question of domestic.

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Data Control Methods of Online Application based on Multi-Platform (멀티 플랫폼 기반 온라인 응용의 데이터 제어 기법)

  • Kim, Jin-Deog;Jin, Kyo-Hong
    • The Journal of Korean Association of Computer Education
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    • v.5 no.4
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    • pp.79-89
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    • 2002
  • Several multi-user online applications which are operated by the existing fixed terminals(PC) are being changed into online application based on multi-platform operated by the several PC, PDA and mobile phones to perform concurrent works recently. The contents of current online application based multi-platform are, however, very unsophisticated because the applications don't consider the simultaneous accesses of shared data by multi-user and also the asymmetry of computing power and network bandwidth among each client. This paper proposed the methods of consistency control based on multi-platform, update propagation protocols among diverse clients, object management techniques which take the characteristics of mobile clients into account. We also implemented a chatting application based on multi-platform and it showed the proposed methods perform well.

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A Study on 8kbps PC-MPC by Using Position Compensation Method of Multi-Pulse (멀티펄스의 위치보정 방법을 이용한 8kbps PC-MPC에 관한 연구)

  • Lee, See-Woo
    • Journal of Digital Convergence
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    • v.11 no.5
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    • pp.285-290
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    • 2013
  • In a MPC coding using excitation source of voiced and unvoiced, it would be a distortion of speech waveform. This is caused by normalization of synthesis speech waveform of voiced in the process of restoration the multi-pulses of representation section. To solve this problem, this paper present a method of position compensation(PC-MPC) in a multi-pulses each pitch interval in order to reduce distortion of speech waveform. I was confirmed that the method can be synthesized close to the original speech waveform. And I evaluate the MPC and PC-MPC using multi-pulses position compensation method. As a result, $SNR_{seg}$ of PC-MPC was improved 0.4dB for female voice and 0.5dB for male voice respectively. Compared to the MPC, $SNR_{seg}$ of PC-MPC has been improved that I was able to control the distortion of the speech waveform finally. And so, I expect to be able to this method for cellular phone and smart phone using excitation source of low bit rate.

A Study on the PC-Based Motion Controller Design for Multi-Axis Control (다축 제어용 PC-Based Motion Controller 설계에 관한 연구)

  • 안호균
    • Proceedings of the KIPE Conference
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    • 2000.07a
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    • pp.641-644
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    • 2000
  • Recently As the performance of the personal computer has been improving rapidly lots of research for the pc-based numerical computer actively progress in an easy repair maintenance and improving the performance with less cost. This paper presents the design using complex programmable logic device(CPLD). The CPU of Motion Controller that function as the real time control of the independent multi-axis motion the error-detect module and external I/O control made use of 80C196KC, In this paper The PC-NC effectively distributed to the load of NCK(numerical computer kernel) and have the advantage of high speed and precision.

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Infrastructure for Network Applications based on Multi-Platform (멀티 플랫폼 기반 네트워크 응용을 위한 기반 구조)

  • 김진덕;진교홍
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2002.11a
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    • pp.677-681
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    • 2002
  • Several multi-user online applications which are operated by the existing fixed terminals(PC) are being changed into online application based on multi-platform operated by the several PC, PDA and mobile phones to perform concurrent works due to the popularization of mobile devices recently. This paper proposed the infrastructure for network applications based on multi-platform. We also proposed the methods of consistency control based on multi-platform, update propagation protocols among diverse clients which take the asymmetry of computing power and network bandwidth among each client into account. Moreover, we implemented a chatting application based on multi-platform and it showed the proposed infrastructure and methods perform well.

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