• Title, Summary, Keyword: Creation Tool

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Theoretical Estimation of Machined Surface Profile by Tool Alignment Errors in Ball-End Milling (볼 엔드밀링에서의 공구 정렬 오차에 의한 가공면의 이론적인 평가)

  • Shin Y.J.;Park K.T.;Lee J.H.;Kang B.S.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • pp.627-628
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    • 2006
  • High speed milling process is emerging as an important fabrication process benefits include the ability to fabricate micro and meso-scale parts out of a greater range of materials and with more varied geometry. It also enables the creation of micro and meso-scale molds for injection molding. Factors affecting surface roughness have not been studied in depth for this process. A series of experiments has been conducted in order to begin to characterize the factors affecting surface roughness and determine the range of attainable surface roughness values for the high speed milling process. It has previously been shown that run-out creates a greater problem for the dimensional accuracy of pans created by high speed milling process. And run-out also has a more significant effect on the surface quality of milled parts. The surface roughness traces reveal large peak to valley variations. This run-out is generated by spindle dynamics and tool geometry. In order to investigate the relationship between tool alignment errors and surface roughness the scallop generating mechanism in the ball-end milling with tool alignement errors has been studied and simulated. The results indicate that tool alignment errors have no significant effects ell the dimension of scallops in for flat planes.

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Single Carrier Spectroscopy of Bisolitons on Si(001) Surfaces

  • Lyo, In-Whan
    • Proceedings of the Korean Vacuum Society Conference
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    • pp.13-13
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    • 2010
  • Switching an elementary excitation by injecting a single carrier would offer the exciting opportunity for the ultra-high data storage technologies. However, there has been no methodology available to investigate the interaction of low energy discrete carriers with nano-structures. In order to map out the spatial dependency of such single carrier level interactions, we developed a pulse-and-probe algorithm, combining with low temperature scanning tunneling microscopy. The new tool, which we call single carrier spectroscopy, allows us to track the interaction with the target macrostructure with tunneling carriers on a single carrier basis. Using this tool, we demonstrate that it is possible not only to locally write and erase individual bi-solitons, reliably and reversibly, but also to track of creation yields of single and multiple bi-solitons. Bi-solitons are pairs of solitons that are elementary out-of-phase excitations on anti-ferromagnetically ordered pseudo-spin system of Si dimers on Si(001)-c(42) surfaces. We found that at low energy tunneling the single bisoliton creation mechanism is not correlated with the number of carriers tunneling, but with the production of a potential hole under the tip. An electric field at the surface determines the density of the local charge density under the tip, and band-bending. However a rapid, dynamic change of a field produces a potential hole that can be filled by energetic carriers, and the amount of energy released during filling process is responsible for the creation of bi-solitons. Our model based on the field-induced local hole gives excellent explanation for bi-soliton yield behaviors. Scanning tunneling spectroscopy data supports the existence of such a potential hole. The mechanism also explains the site-dependency of bi-soliton yields, which is highest at the trough, not on the dimer rows. Our study demonstrates that we can manipulate not just single atoms and molecules, but also single pseudo-spin excitations as well.

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Research on the Influence of the Use of VR Technology in Dance Creation on the Willingness of Dance Directors to Use: Focusing on the Ease of Cognition and the Mediating Effect of Usefulness

  • Wu, Nuowa
    • Journal of the Korea Society of Computer and Information
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    • v.24 no.6
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    • pp.117-124
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    • 2019
  • In the field of dance creation, the use of film and television skills, cyberspace, action sets, computer graphics and other technology and media technology have made the creative environment for dance art that it rapidly improves and presents a new situation. Especially in the dance creation part, VR technology can show many possibilities and can be used as a tool to fully satisfy the choreographer's intention and imagination. Therefore, this study analyzes the acceptance model of virtual reality technology in dance creative education, and we will examine the effect of social influence, shared trust, innovation, interest, and self-efficacy on perceived usefulness and perceived ease. Second, we will examine the effect of perceived usefulness and perceived ease on intention to use. The study is targeted at ordinary dance creators who currently reside in Hebei Province, China. The survey was conducted for approximately 30 days from March 16th to April 17th. The total number of valid samples collected was 377. The results of the identification of the hypotheses between variables based on the questionnaire data are as follows: Firstly, social influence, shared trust, innovation, interest, and self-efficacy have a positive impact on perceived usefulness, perceived ease. Secondly, perceived usefulness, perceived ease has a positive effect on the intention to use. In view of the above research results, the theoretical significance and limitations of this research and the future research directions are discussed in depth.

A Study on the Language Independent Dictionary Creation Using International Phoneticizing Engine Technology (국제 음소 기술에 의한 언어에 독립적인 발음사전 생성에 관한 연구)

  • Shin, Chwa-Cheul;Woo, In-Sung;Kang, Heung-Soon;Hwang, In-Soo;Kim, Suk-Dong
    • The Journal of the Acoustical Society of Korea
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    • v.26 no.1E
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    • pp.1-7
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    • 2007
  • One result of the trend towards globalization is an increased number of projects that focus on natural language processing. Automatic speech recognition (ASR) technologies, for example, hold great promise in facilitating global communications and collaborations. Unfortunately, to date, most research projects focus on single widely spoken languages. Therefore, the cost to adapt a particular ASR tool for use with other languages is often prohibitive. This work takes a more general approach. We propose an International Phoneticizing Engine (IPE) that interprets input files supplied in our Phonetic Language Identity (PLI) format to build a dictionary. IPE is language independent and rule based. It operates by decomposing the dictionary creation process into a set of well-defined steps. These steps reduce rule conflicts, allow for rule creation by people without linguistics training, and optimize run-time efficiency. Dictionaries created by the IPE can be used with the Sphinx speech recognition system. IPE defines an easy-to-use systematic approach that can lead to internationalization of automatic speech recognition systems.

A Design of Integrated System for Real Time Multimedia Presentation and Content Creation (실시간 멀티미디어 프리젠테이션 및 컨텐트 제작을 위한 통합 시스템 설계)

  • 이규남;나인호
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.4 no.4
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    • pp.835-843
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    • 2000
  • This paper presents a method to design the integrated system for supporting both multimedia contents creation and its presentation in a windows system. Especially, it describes techniques for designing an integrated editor that can be used to crate and edit various media data including continuous media such as audio and video. And it also proposes a system model for systematically integrating multimedia creation tool with multimedia presentation system where the buffering and scenario-based presentation methods are included in the propose system for supporting effective multimedia presentation through a network. Finally, we describe a threads processing technique based on event monitoring to satisfy needs for presentation control, synchronization control, and user's input control during a multimedia presentation.

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A Study on the Analysis of Function for the Enhancement of the Tool for Assemble of Unit Modular (유닛모듈러 조립공구 개선을 위한 기능분석 연구)

  • Park, Nam-Cheon;Kim, Kyoon-Tai;Park, Su-Yeul;Jung, In-Su
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.239-241
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    • 2012
  • The major industrialized nations have continued to develop industrialized construction techniques based on automated production processes in factories, and are applying them to a wide range of building. However, the unit modular construction system has had a shorter history of development and application in Korea compared to advanced countries, and consequently, Korean modular builders have a relatively poor technical capacity. So this study is draw a conclusion on the target of priority improvement for idea creation. It study on the enhancement of the functionality of the tool for assemble of Unit Modular that choose the enhancement of the functionality through the analysis of function on the three-level of functional definition and classification, functional arrangement, functional appraisal.

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Micro Ultrasonic Elliptical Vibration Cutting (II) Ultrasonic Micro V-grooving Using Elliptical Vibration Cutting (미세 초음파 타원궤적 진동절삭 (II) 타원진동 절삭운동을 이용한 미세 홈 초음파 가공)

  • Kim Gi Dae;Loh Byoung-Gook;Hwang Kyung-Sig
    • Journal of the Korean Society for Precision Engineering
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    • v.22 no.12
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    • pp.198-204
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    • 2005
  • For precise micro V-grooving, ultrasonic elliptical vibration cutting (UEVC) is proposed using two parallel piezoelectric actuators, which are energized by sinusoidal voltages with a phase difference of 90 degrees. Experimental setup is composed of stacked PZT actuators, a single crystal diamond cutting tool, and a precision motorized xyz stage. It is found that the chip formed in the process of UEVC is discontinuous because of the periodic contacts and non-contacts occurring between the tool and workpiece. It is experimentally observed that the cutting force in the process of UEVC significantly reduces compared to the ordinary non-vibration cutting. In addition, the creation of burr during UEVC is significantly suppressed, which is attributable to the decrease in the specific cutting energy.

A Study on the Innovation of Course Contents and Instruction of CAD in Interior Design Education (실내디자인교유겡서 CAD 과목의 교육내용 및 교육방법 개선에 관한 연구)

  • 김동영
    • Korean Institute of Interior Design Journal
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    • no.9
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    • pp.24-29
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    • 1996
  • The objectives of this study is to create an environment which students could apply effectively through focused on the innovative methods of education and CAD course contents. The facts which were able to figure out from this study were as follows ; 1. After the analysis of the CAD course contents of the american universities, their common contents were in order of introduce to Computer Aided Drafting and design with Auto CAD/ provide fundamental knowledge of the application for use in design/ examine and how this effects 2 D image and model creation/ CAD as a design tool . Over all trend of CAD course contents of interior design program in american university is moving toward utilizing CAD as a design tool. 2. On the other hand, common contents of our local universities were simply introducing CAD. It means that our course contents are more methodological and theoreatical . And american university's program is focused on problem solving solution as a design tool.

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A Simple Java Sequence Alignment Editing Tool for Resolving Complex Repeat Regions

  • Ham, Seong-Il;Lee, Kyung-Eun;Park, Hyun-Seok
    • Genomics & Informatics
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    • v.7 no.1
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    • pp.46-48
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    • 2009
  • Finishing is the most time-consuming step in sequencing, and many genome projects are left unfinished due to complex repeat regions. Here, we have developed BACContigEditor, a prototype shotgun sequence finishing tool. It is essentially an editor that visualizes assemblies of shotgun sequence fragment reads as gapped multiple alignments. The program offers some flexibility that is needed to rapidly resolve complex regions within a working session. The sole purpose of the release is to promote collaborative creation of extensible software for fragment assembly editors, foster collaborative development, and reduce barriers to initial tool development effort. We describe our software architecture and identify current challenges. The program is available under an Open Source license.

Development of off-line Robot Task Programming System for Polishing Process of Sculptured Surfaces (자유곡면의 연마공정을 위한 오프라인 로봇작업 프로그래밍 시스템의 개발)

  • Chung, Seong-Chong;Kuk, Keum-Hwan;Choi, Gi-Bong
    • Journal of the Korean Society for Precision Engineering
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    • v.8 no.4
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    • pp.84-94
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    • 1991
  • In order to achieve high accuracy of teaching and increase productivity using industrial robots in polishing process of dies, an off-line task programming system was developed on IBM-PC/386 under WINDOWS 3.0 operating system. The internal structure and the machematical basis of CAMPoli are described. Surface modeling technique of polishing dies with sculptured surfaces is introduced by poing data interpolation methodology through the use of CL-data transmitted from conventional CAM system. Tool selection, polishing speed, polishing pressure and kinds of tool motions can be determined and selected by user specified polishing variables. Task creation and verification of polishing path via computer graphics simulation of polishing tool can be done by the menu- driven function of CAMPoli system. Post-processing module is attached to generate robot language. Some simulation results are provided as verification means of the system.

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