• Title/Summary/Keyword: Miniature model

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Simulation of Virtual Marionette with 3D Animation Data (3D Animation Data를 활용한 가상 Marionette 시뮬레이션)

  • Oh, Eui-Sang;Sung, Jung-Hwan
    • The Journal of the Korea Contents Association
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    • v.9 no.12
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    • pp.1-9
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    • 2009
  • A doll created by various materials is a miniature based on human model, and it has been one of components in a puppet show to take some responsibility for human's culture activity. However, demand and supply keeps on the decrease in the puppet show industry, since professional puppeteer has been reduced rapidly, and also it is difficult to initiate into the skill. Therefore, many studies related Robotic Marionette for automation of puppet show have been internationally accompanied, and more efficient structure design and process development are required for better movement and express of puppet with motor based controller. In this research, we suggest the effective way to enable to express the marionette's motion using motion data based on motion capture and 3D graphic program, and through applying of 3D motion data and proposal of simulation process, it will be useful to save time and expenses when the Robotic Marionette System is practically built.

The Technical Development of Convergent Multiple Photogrammetry for the Deformation Analysis of Structure (구조물(構造物) 변형해석(變形解析)을 위한 수검다중사진(收劎多重寫眞) 측정(測定)의 기법개발(技法開發))

  • Kang, Joon Mook
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.7 no.1
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    • pp.131-139
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    • 1987
  • In this study, characteristics of multi-photos and optimal photographing method are suggested by analyzing the normal case and convergent case with multiple method. The optimal photographing method is applied to deformation measurement of a model miniature structure under loading. Comparing with conventional measurement method in accuracy, efficiency and proprities of application of this method are suggested. As a result, the optimal photographing condition is ideal at $90^{\circ}$ convergent multiple case, whose measurement values approach to that of precision level within $5{\sim}9{\mu}m$ and bring more than about 55% improvement of accuracy comparing with normal case at the number of photos respectively. Therefore application of this method in deformation measurement as well as precision analysis of structures is desired in precision and economical aspect.

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Identification of Endothelial Specific Region in the Intracellular Adhesion Molecule-2 (ICAM2) Promoter of Miniature Pig

  • Jang, Hoon;Jang, Won-Gu;Kim, Dong Un;Kim, Eun-Jung;Hwang, Sung Soo;Oh, Keon Bong;Lee, Jeong-Woong
    • Reproductive and Developmental Biology
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    • v.36 no.3
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    • pp.207-212
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    • 2012
  • The shortage of human organs for transplantation has induced the research on the possibility of using animal as porcine. However, pig to human transplantation as known as xeno-transplantation has major problem as immunorejection. Recently, the solutions of pig to human xenotransplantation are commonly mentioned as having a genetically modification which include alpha 1, 3 galatosyl transferase knockout (GTKO) and immune-suppressing gene transgenic model. Unfortunately, the expression level of transgenic gene is very low activity. Therefore, development of gene overexpression system is the most urgent issue. Also, the tissue specific overexpression system is very important. Because most blood vessels are endothelial cells, establishment of the endothelial-specific promoter is attractive candidates for the introduction of suppressing immunorejection. In this study, we focus the ICAM2 promoter which has endothelial-specific regulatory region. To detect the regulatory region of ICAM2 promoter, we cloned 3.7 kb size mini-pig ICAM2 promoter. We conduct serial deletion of 5' flanking region of mini-pig ICAM2 promoter then selected promoter size as 1 kb, 1.5 kb, 2 kb, 2.5 kb, and 3 kb. To analyze promoter activity, luciferase assay system was conducted among these vectors and compare endothelial activity with epithelial cells. The reporter gene assay revealed that ICAM2 promoter has critical activity in endothelial cells (CPAE) and 1 kb size of ICAM2 promoter activity was significantly increased. Taken together, our studies suggest that mini-pig ICMA2 promoter is endothelial cell specific overexpression promoter and among above all size of promoters, 1 kb size promoter is optimal candidate to overcome the vascular immunorejection in pig to human xenotransplantation.

An Experimental Study on the Thermal Performance of the Flat Roof in Proportion to Directional Changes (평지붕의 방위별 열성능에 관한 실험적 연구)

  • 박병규;황하진;이경희
    • Journal of the Korean housing association
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    • v.12 no.2
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    • pp.191-198
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    • 2001
  • The aim of this research was to examine the thermal performance of the flat roof in proportion to various directional changes, the results of which were drawn from the miniature model experiment. In this process, various thermal environmental factors were measured and compared with one another to research their aspects of changes. The brief results of this research are as follows: 1) The indoor temperature and load per hour in proportion to directional changes shows the same degree of changes. As for the results of the clear-sky and cloudy-sky experiments, both of them generally appear advantageous in the order of S, $S-30^{\cire}C$-E, $S-30^{\cire}C$-W, $S-60^{\cire}C$-W, E, $S-60^{\cire}C$-E, despite slight differences in the indoor temperature and load per hour in proportion to directional changes. 2) As for the total load of degree day per direction of the clear-sky and cloudy-sky experiments, both of them shows their advantageous results in the order of S, $S-30^{\cire}C$-E, $S-30^{\cire}C$-W, $S-60^{\cire}C$-W, E, $S-60^{\cire}C$-E, despite minor differences in their loads. 3) As for the peak load of degree hour, while the clear-sky experiment shows its advantage in the order of $S-30^{\cire}C$-E, S, $-30^{\cire}C$-W, $S-60^{\cire}C$-W, E, $S-60^{\cire}C$-E, the cloudy-sky experiment does so in the order of S, $S-30^{\cire}C$-E, $S-30^{\cire}C$-W, E, $S-60^{\cire}C$-W, $S-60^{\cire}C$-E.

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A Study on Tracking a Moving Object using Photogrammetric Techniques - Focused on a Soccer Field Model - (사진측랑기법을 이용한 이동객체 추적에 관한 연구 - 축구장 모형을 중심으로 -)

  • Bae Sang-Keun;Kim Byung-Guk;Jung Jae-Seung
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.24 no.2
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    • pp.217-226
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    • 2006
  • Extraction and tracking objects are fundamental and important steps of the digital image processing and computer vision. Many algorithms about extracting and tracking objects have been developed. In this research, a method is suggested for tracking a moving object using a pair of CCD cameras and calculating the coordinate of the moving object. A 1/100 miniature of soccer field was made to apply the developed algorithms. After candidates were selected from the acquired images using the RGB value of a moving object (soccer ball), the object was extracted using its size (MBR size) among the candidates. And then, image coordinates of a moving object are obtained. The real-time position of a moving object is tracked in the boundary of the expected motion, which is determined by centering the moving object. The 3D position of a moving object can be obtained by conducting the relative orientation, absolute orientation, and space intersection of a pair of the CCD camera image.

Selecting a Mobile Device Using the Analytic Hierarchy Process (AHP를 이용한 모바일 기기 선정)

  • Byun, Dae-Ho
    • Journal of Digital Convergence
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    • v.9 no.4
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    • pp.1-8
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    • 2011
  • A mobile device is a handheld device, typically having a display screen with touch input and/or a miniature keyboard and accessible to the Internet. Because mobile devices are innovative and rapidly changing products, consumers are confronted with a decision-making problem to select the best device. This paper proposes an Analytic Hierarchy Process method to assess mobile devices and shows a method to select best mobile devices when purchasing. For this paper, the mobile devices considered as in the AHP model included net-book, tablet PC, smart phone, and camera phone. We derived 6 main criteria and 15 sub-criteria to synthesize the overall priority of criteria and mobile devices. The criterion of convenience in carrying showed the highest rank in the criteria. Although smart phones had the highest priority, the four mobile devices did not show significant differences in consumer preference.

Building of an Intelligent Ship's Steering Control System Based on Voice Instruction Gear Using Fuzzy Inference (퍼지추론에 의한 지능형 음성지시 조타기 제어 시스템의 구축)

  • 서기열;박계각
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.7 no.8
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    • pp.1809-1815
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    • 2003
  • This paper presents a human friendly system using fuzzy inference as a Part of study to embody intelligent ship. We also build intelligent ship's steering system to take advantage of speech recognition that is a part of the human friendly interface. It can bring an effect such as labor decrement in ship. In order to design the voice instruction based ship's steering gear control system, we build of the voice instruction based learning(VIBL) system based on speech recognition and intelligent learning method at first. Next, we design an quartermaster's operation model by fuzzy inference and construct PC based remote control system. Finally, we applied the unposed control system to the miniature ship and verified its effectiveness.

Intelligent Control System for Ship Steering Gear Using TCP/IP (TCP/IP 기반의 지능형 조타제어시스템에 관한 연구)

  • Seo Ki-Yeol;Oh Se-Woong;Cho Deuk-Jae;Park Sang-Hyun;Suh Sang-Hyun
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2006.05a
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    • pp.305-309
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    • 2006
  • The important field of research on ship operation is related to the high efficiency of transportation, the convenience of maneuvering ships and the safety of navigation. For these purposes, many intelligent technologies for ship automation have been required and studied. As a way of practical application for a smart ship based on network system, this paper proposes the intelligent control system for ship steering gear based on TCP/IP and desires to testify the validity of the proposal by applying the fuzzy control model to the steering gear system. As study method, the fuzzy inference was adopted to build the maneuvering models of steersman and then the network system was implemented using the TCP/IP Socket programming. Lastly, the miniature steering control system was designed to testify for its effectiveness.

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Structural Performance Analysis of New Type CFTA Girder Bridge (신형식 CFTA 거더 교량의 구조성능평가)

  • Lee, Ji-O;Jeong, Min-Chul;Park, Kyung-Hoon;Kong, Jung-Sik
    • Journal of the Korean Society of Hazard Mitigation
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    • v.11 no.1
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    • pp.15-22
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    • 2011
  • In this research, static load test is performed to verify the arch effect and structural performance of CFTA(Concrete-Filled and Tied steel tubular Arch) girder, and FE(Finite Element) analysis is performed to investigate validity of the test result. CFTA girder is designed to maximize the benefit of each material, such as steel plate, filled concrete and PS tendon. Static load test is performed based on the frame-analysis result of 12m sample miniature model. The result of static load test is that structural performance and safety of CFTA girder are confirmed and there is different deflection mode with other structural form result from arch effect. FE analysis with ABAQUS is also performed to show the validity of the truck collision safety and static load test.

Measurement of Thermal Characteristics of Thin Film Patterned Heating Heater on Silicon Semiconductor Substrate (실리콘 반도체 기판에 제작된 박막 패턴 발열 히터의 열특성 측정)

  • Park, Hyun-Sik
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.6
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    • pp.9-13
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    • 2019
  • In this study, a miniature thin film-patterned heater was fabricated on a silicon substrate using semiconductor process technology and the thermal characteristics of the applied voltage, power, and temperature of the thin film heater were measured and analyzed. The temperature of the thin film pattern heater increased with increasing power, but the temperature increase rate was gradual at high power intervals. The characteristics of the high temperature section of the platinum thin film-patterned heater were analyzed using the heat resistance model under atmospheric and vacuum conditions. The thermal resistance measured in a vacuum atmosphere was 0.79 [K/mW] higher than the heat resistance value 0.69 [K/mW] in air. The temperature of the thin film pattern heater can be maintained at a low power in a vacuum rather than in air, and these results are expected to be utilized in the structural design of a thin film-patterned heater element.