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Structure of Deposition Chamber using Belt Source Evaporation Techniques in AMOLED Manufacturing

  • Hwang, Chang-Hun
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08a
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    • pp.186-189
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    • 2007
  • The organic deposition chamber has been developed using belt source evaporation techniques for the first time. The deposition chamber is consisted of the belt source, organic vapor source, and the mask alignment assembly. The rollers operate for the thin metal belt to continuously move with the automatic tension control. It has been proved for the belt source evaporation easy to operate and the alignment of the substrate/shadow mask becomes so simple to use in AMOLED manufacturing industry.

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A Basic Technical Feasibility Study for Operation of Tilting Train in Conventional Railway(1) (틸팅차량 투입 기술적 타당성 기초연구(1))

  • 유원희;김남포;정우진;김경태
    • Proceedings of the KSR Conference
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    • 2002.05a
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    • pp.23-28
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    • 2002
  • Recently the operation of tilting train is considered in order to speed up the conventional railway, The vehicle and track should be studied to operate the tilting train. In this study, the basic technical feasibility was studied in order to operate the tilting train in the specific line.

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Analysis on Trends of Artworks Blockchain Platform

  • Lee, Yo-Seob
    • International Journal of Advanced Culture Technology
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    • v.7 no.3
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    • pp.149-157
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    • 2019
  • Recently, the blockchain platform is changing the art market. Changes are taking place in many areas, including artists, collectors, art investors, and auction. The platform that provides distribution history information on artworks on a blockchain basis can be used when information on the work history is suspected or needs verification, and can be used to manage the distribution history information of stolen and lost artworks and confiscated artworks by the police. Several companies currently operate these platforms, but they operate various blockchain platforms according to their contents. In this paper, we will compare and analyze features of artworks blockchain platform.

Position of Intersection Recognition and Tum Signal Operation Approaching at Target Intersection (교차로 인지와 방향지시등 조작 지점에 관한 검토)

  • Jeon, Yong-Wook;Tatsmu, Daimon
    • Journal of the Korean Society of Safety
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    • v.24 no.3
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    • pp.65-70
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    • 2009
  • In-vehicle route guidance information(RGI) systems have been developed with the advancement of the information and communication technologies. However, the RGI is provided by a pre-determined option, drivers occasionally pass the target intersection owing to non- or late- recognizing it. The purpose of this experiment is to examine the position of driver's tum signal operation and intersection recognition approaching at the target intersection which is difficult to identify as a preliminary research on developing the additional RGI connecting with the tum signal control. The field experiment was conducted to measure distances of the turn signal operation and intersection recognition from the target intersection according to driving lanes and landmarks at adjacent intersection. And, glance behavior to the car navigation display was evaluated by using an eye camera. The results indicate that drivers operate the turn signal after confirming a landmark in the case of the intersection with it. However, most case of driving, drivers operate the tum signal at 40 to 50m before coming to the target. To provide the additional RGI, when drivers do not operate the tum signal approaching at the target intersection based on the results, is expected to improve the traffic safety and the comfort for drivers.

Development of Heliostat Field Operational Algorithm for 200kW Tower Type Solar Thermal Power Plant (200kW 타워형 태양열발전시스템의 헬리오스타트 필드 운영 알고리즘 개발)

  • Park, Young Chil
    • Journal of the Korean Solar Energy Society
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    • v.34 no.5
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    • pp.33-41
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    • 2014
  • Heliostat field in a tower type solar thermal power plant is the sun tracking mirror system which affects the overall efficiency of solar thermal power plant most significantly while consumes a large amount of energy to operate it. Thus optimal operation of it is very crucial for maximizing the energy collection and, at the same time, for minimizing the operating cost. Heliostat field operational algorithm is the logics to control the heliostat field efficiently so as to optimize the heliostat field optical efficiency and to protect the system from damage as well as to reduce the energy consumption required to operate the field. This work presents the heliostat field operational algorithm developed for the heliostat field of 200kW solar thermal power plant built in Daegu, Korea. We first review the structure of heliostat field control system proposed in the previous work to provide the conceptual framework of how the algorithm developed in this work could be implemented. Then the methodologies to operate the heliostat field properly and efficiently, by defining and explaining the various operation modes, are discussed. A simulation, showing the heat flux distribution collected by the heliostat field at the receiver, is used to show the usefulness of proposed heliostat field operational algorithm.

Theme Trail District Planning for the Regional Activation -Case study on project of Trail construction each of the government agencies- (지역 활성화를 위한 테마길 조성 방안 -부처별 길 만들기 사업을 중심으로-)

  • Kim, Sang-Bum;Choi, Ja-Un;Jeong, Dae-Young;Kim, Eun-Ja
    • Journal of Agricultural Extension & Community Development
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    • v.17 no.3
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    • pp.587-606
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    • 2010
  • Theme trail construction should be changed from existing form which connects line to line, or point to line. It should be developed into area form. The project of Trail construction must be converted in area form. The aggregate of the points which is a base element of walk is a line, and the harmonious connection of various line is the area. The close relationship with points and lines is important to operate the project of trail construction in area form effectively. Subject of the project of Theme trail construction of area form must become the village residents which are being contiguous in trail. They must operate management and about trail. The project of Trail construction of area form the plan making is established and if the subjects which, will operate and manage that place are decided upon according to theme must construct the trail of the wide area concept which connects the trail of that trail and neighborhood. If becomes like that local resident and the citizen will be able to coexist with mediation of Trail. If the project of Trail construction of village resident leading is propelled applying rural amenity resources in a way, the trail model which one phases advances could be presented for ecological, economical and cultural.

A study on the Space type of Homebase in Schools that Operate Departmentalized Classrooms (교과교실제 운영학교의 홈베이스 공간유형에 관한 연구)

  • Yoon, Mi-Youn;Jung, Jin-Ju;Oh, Byeong-Uk
    • Journal of the Korean Institute of Rural Architecture
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    • v.16 no.4
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    • pp.43-50
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    • 2014
  • Since the introduction of the Departmentalized Classroom System in 2009, schools that operate the system experienced many changes in terms of school management, educational courses, and school environment. In particular, class-based classrooms changed into departmentalized classrooms and staff rooms became teachers' support centers and research rooms to create an environment that is apt for the management of departmentalized classrooms. Students have also come to move from departmentalized classrooms to departmentalized classrooms in which homebases were prepared as a space for students to rest and enjoy a stable school life. As such, homebases as a space for students to enjoy school life are indispensable and are becoming more important for the management of the Departmentalized Classroom System. Thus, it is necessary to investigate in detail the state of the establishment of homebases in schools that operate the system. In line with this, this paper sampled 59 schools that have managed the system as an advanced system for over 2 years and conducted school visits and held interviews to investigate and analyze the placement, function, and scale of homebases as well as to provide basic material on homebases.

Evaluation Criteria Development of Courses Based on CIPP Evaluation Model Dedicated to Approval of Training Organizations (CIPP 평가모형에 기반한 항공종사자 전문교육기관 교육과정(항공정비사) 평가준거 개발)

  • Nam, Myoung-Kwan;Park, Sang-Bum
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.22 no.4
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    • pp.8-14
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    • 2014
  • The purpose of this research was to develop evaluation conformity to operate courses based on CIPP evaluation model dedicated to approval of training organizations. In order to achieve the goal, the researchers scrutinized related documents and precedent studies, initiated the draft for evaluation conformity to operate courses and secured validity for evaluation conformity initiated through Delphi Method survey. To secure validity for evaluation conformity, the researchers conducted two Delphi Method surveys of an expert panel of 22 professionals from relevant fields including officials from the Ministry of Land, Infrastructure and Transport, researchers from Korea Transportation Safety Authority, instructors from approved training organizations and officials from industries. Through the surveys, the researchers determined 4 evaluation areas, 13 evaluation items and 52 evaluation indexes as the evaluation conformity to operate courses for aircraft maintenance mechanics. On top of that, the researchers established evaluation system in the courses for aviation professionals (aircraft maintenance mechanics), and suggested a follow-up studies regarding managing the quality of education.

Study on Application of Multimedia Freeware to Instructional Design: Focused on Chinese Conversation Class (멀티미디어 교수매체수업 설계를 위한 프리웨어 활용방안 - 중국어 회화수업을 중심으로)

  • Park, Chan Wook
    • Cross-Cultural Studies
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    • v.25
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    • pp.549-596
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    • 2011
  • This paper aims to introduce some useful multimedia freewares, and also support Chinese instructor with discussing how to operate them for instructional design of multimedia language learning class. For this aims, this paper consists of three parts: First, instructional design. This part is focused to what kind of instructional model to be based on, for example, Dick & Carey model, ADDIE model, ASSURE model etc. This part introduces these models, and modifies ADDIE and ASSURE model to D.D.A.I.E.S and S.S.A.U.R.E.S as 'A(nalysis)' in these model may apply to the next 'D(evelopment)' on ADDIE, 'S(elect Methods, Media and Materials)' on ASSURE in the practical Chinese class. Second, Programme: What to use. This part is focused to what kind of free software we can use. In the web site online, there are huge free softwares so we usually hesitate to select and also don't know how to operate even though selected one of them. This part, accordingly, introduces ten of useful freewares and compares each other in terms of usefulness for Chinese instructors. Third, Programme: How to use. It is of no use just to know what to use but not to know how to operate, so this part describes how to use freewares like a kind of manual in detail as far as possible. In conclusion, we hope more Chinese instructors to learn and use more useful freewares for designing the better multimedia Chinese class by this paper.

Evaluation of GPU Computing Capacity for All-in-view GNSS SDR Implementation

  • Yun Sub, Choi;Hung Seok, Seo;Young Baek, Kim
    • Journal of Positioning, Navigation, and Timing
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    • v.12 no.1
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    • pp.75-81
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    • 2023
  • In this study, we design an optimized Graphics Processing Unit (GPU)-based GNSS signal processing technique with the goal of designing and implementing a GNSS Software Defined Receiver (SDR) that can operate in real time all-in-view mode under multi-constellation and multi-frequency signal environment. In the proposed structure the correlators of the existing GNSS SDR are processed by the GPU. We designed a memory structure and processing method that can minimize memory access bottlenecks and optimize the GPU memory resource distribution. The designed GNSS SDR can select and operate only the desired GNSS or desired satellite signals by user input. Also, parameters such as the number of quantization bits, sampling rate, and number of signal tracking arms can be selected. The computing capability of the designed GPU-based GNSS SDR was evaluated and it was confirmed that up to 2400 channels can be processed in real time. As a result, the GPU-based GNSS SDR has sufficient performance to operate in real-time all-in-view mode. In future studies, it will be used for more diverse GNSS signal processing and will be applied to multipath effect analysis using more tracking arms.