• Title/Summary/Keyword: Line simplification

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Development of Men Slacks Pattern Using 3D Scan Data (3차원 인체형상 스캔데이터를 이용한 남자 바지패턴 설계)

  • Sohn, Boo-Hyun
    • Journal of the Korean Home Economics Association
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    • v.46 no.9
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    • pp.137-146
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    • 2008
  • This study was conducted in order to spread out lower body 3D scan data of men in their twenties. The aim was to achieve slacks pattern with ease allowance through comparison with existing flat patterns. For conversion of 3D scan data into 20 pattern, reference lines were established by using Rapid Foam in 3D shape analysis software. 2C-AN program and Yuka CAD were used to convert 20 pattern earned with straight posture of 3D scan data into slacks pattern by using Triangle Simplification & Runge-Kutta Method. In order to achieve this we needed to set a line 9cm below the hip line, to array vertex of each block to crease line while maintaining the horizontal line. And then we needed to set ease allowance in back crotch and to set waist circumference or hip circumference ease allowance in side seam of slacks. Results showed that long front crotch length can be achieved if 3D scan data is compared with 20 existing flat pattern. Slacks pattern that raise front crotch by about 1.5cm compared to back crotch and also possess ease allowance in back crotch area are great in appearance evaluation.

A Study on the Parameter Estimation of an Induction Motor using Neural Networks (신경회로망을 이용한 유도전동기의 피라미터 추정)

  • 류한민;김성환;박태식;유지윤
    • Proceedings of the KIPE Conference
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    • 1998.07a
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    • pp.225-229
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    • 1998
  • If there is a mismatch between the controller programmed rotor time constant and the actual time constant of motor, the decoupling between the flux and torque is lost in an indirect rotor field oriented control. This paper presents a new estimation scheme for rotor time constant using artificial neural networks. The parameters of induction motor model organize 2 layer neural to be weight between neuron, which is proposed new in this paper. This method makes networks simple, so its brings not only the improvement in speed but simplification in calculation. Furthermore, it is possible to estimated rotor time constant real time through on-line learning without using off-line learning. The digital simulation and the experimental results to verify the effectiveness of the new method are described in this paper.

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Types of Expression and Aesthetic Characteristics of On-line Game Characters' Body and Costume (온라인 게임 캐릭터에 나타난 신체와 복식의 표현 유형과 미적 특성)

  • Kim Mi-Young
    • The Research Journal of the Costume Culture
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    • v.13 no.3 s.56
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    • pp.425-438
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    • 2005
  • This study is to examine the types of expression and aesthetic characteristics of on-line game characters by analyzing those game characters' body and their costume that appear in various domestic on-line game sites. It is shown in this study that types of the human bodies and costume expressed through the game characters are grouped into five categories such as exposure and tightness, enlargement and exaggeration, curtailment and simplification, gender stereotype and unification. Furthermore, there are four typical aesthetic characteristics resulting from those types of expressions; First, 'grotesque' is expressed in the form of extreme enlargement and exaggeration, extreme exposure and concealment, combined images among human, animal or machine, or monstrous devilish images. Second, in an effort to express 'eroticism', bodies are directly exposed, see-through costumes are used in order to emphasize the body lines or very tight designs are used. Third, 'futuristic' characteristics are shown through geometrical shape and silhouette, machine-like details, strong artificial colors or glossy hi-tech material. Lastly, 'pastiche' is expressed with reconciliation of variety of costumes of game characters. Various opposite or heterogeneous styles are combined or harmonized each other to show pastiche, of which examples are male and female, superior culture and inferior one, rich and poor, oriental and western, human and machine, human and nature or past and future, etc.

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Reliability Assessment of Forest Fire on EHV Polymer Insulator Strings (송전용 폴리머애자의 산불 영향 신뢰성 평가)

  • Min, Byeong-Wook;Shin, Tai-Woo;Choi, In-Hyuk;Choi, Han-Yeol;Park, Jae-Ung;Yu, Kun-Yang
    • Proceedings of the KIEE Conference
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    • 2006.07a
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    • pp.436-437
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    • 2006
  • Porcelain insulators have generally been used in Korea but polymer insulators which are superior in that they are light weight, explosion proof, impact proof, economical with construction characteristics, have been in use for the 154kV transmission line since 1999 following a worldwide trend towards the reduced weight, simplification and compact usage of new material insulators. However there have been approximately 500 cases of forest fires in Korea, so the transmission lines that for the most part pass through mountainous areas have been highly effected and the highly polymerized compound polymer insulator has raised concern about reliability in cases of exposure to forest fires. Therefore for the reliability assessment of the effect of forest fires on polymer insulators, mechanical and electrical characteristics are analyzed by an artificial flare test device and transmission facility surrounding conditions along with forest fire characteristics are surveyed. In addition to this, actual 90kV energized transmission line was tested with an artificial forest fire and the expanded usage of polymer insulators is presented through the analysis of mechanical and electrical characteristics and physical properties, and a study on the influence of forest fires on polymer insulators.

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On Study for the CIM By DAS(DATA Acquisition System) (CIM구축을 위한 생산현장의 정보화 사례연구)

  • Lee, Jong-Hyung;Lee, Youn-Heui
    • Journal of the Korean Society of Industry Convergence
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    • v.8 no.2
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    • pp.69-76
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    • 2005
  • This study for Customer Satisfaction(Customer Focus) by Profit security' in the field Process improvement activity and man-power upgrade by DAS(DATA Acquisition System) in the Plant that is fusion Off Line and On Line(IT), Especially the basic of the most foundation in the beginning Step of Toyota system is 3-jeong(a standard instrument; right volume, right box, right position), 5S(Seiri, Seiton, Seisoh, Seiketsu, Sitsuke ; KAISEN, KANBNA System(for Logistic), Further more KPC has established the digital environment such as CIM ; Computer Integrated Manufacturing), IMS ; Intelligent Manufacturing System ERP ; Enterprise Resource Planning, DAS; Data Acquisition System, Autonomous QC & SPC etc,.) in order to realize the intelligent informatization, which is core base for obtaining the competitive power and for responding to the various 21C management environment in flexibility. In this digital management environment, continuously and powerfully they would advance for becoming the best of the world. For strategic changes to take place in industry 3 key important factors need to be included ; Integration of tasks function and process, Decentralization of information, Responsibility, Finally simplification of products and product structures.

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Research on the Development of Inline Phosphate Coating Process Technology to Secure the Properties of Parts for Power Transmission Machinery (동력전달용 기계부품의 물성 확보를 위한 인라인 인산염 피막처리 공정기술개발)

  • Kim, Deok-Ho;Ku, Young-Jin
    • Journal of the Korean Society of Industry Convergence
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    • v.25 no.2_2
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    • pp.199-208
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    • 2022
  • The steel wire or steel bar processing process applied to the manufacture of various bolts and power transmission shafts was improved by applying in-line phosphate film treatment technology. By applying a polymer lubricant for a non-reactive metal forming process and a non-reactive non-phosphorus lubricating coating agent, the film formation for each process time was comparatively analyzed and reviewed. Compared to the nine processes applied previously, the in-line phosphate film treatment technology applied with only two processes has been effectively improved in terms of reduction of treatment time, reduction of facility installation area, prevention of water pollution due to wastewater, and non-use of ozone-depleting substances. In addition, it was found that it can have an important effect on productivity improvement and price competitiveness from the simplification of quality control and process control as well as improvement of the working environment.

Cartoon Rendering with Level-of-Detail (세분화 단계(LOD)를 적용한 카툰렌더링)

  • Park, Jung-Hyun;Ryoo, Seung-Teak;Park, Jin-Wan
    • The Journal of the Korea Contents Association
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    • v.7 no.9
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    • pp.26-33
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    • 2007
  • NPR is the area of research which does the image creation of the impression where the hazard person who creates made a human intimate image by the hand in objective. NPR in Cartoon-Rendering when the human being recognizes a thing, it is a technique which expresses a thing to use an appearance and the line which are a means of basic and intuitional expression. Also Cartoon the person probably is, the hazard which helps, raises the efficiency of namely meaning delivery and a simplification technique with the means for it uses. Is like this cartoon basic rules where the simplification and omission are life, from modeling, the low of LOD technique which it is using specially actively from game and one pulse communication is having a common point. The research which it sees Cartoon effects of GPU bases which use DirectX Shader programs LOD it leads and it applies the method for about under presenting it expresses Cartoon effects in exterior.

Mitigation of Impulse Noise Using Slew Rate Limiter in Oversampled Signal for Power Line Communication (전력선 통신에서 오버 샘플링과 Slew Rate 제한을 이용한 임펄스 잡음 제거 기법)

  • Oh, Woojin;Natarajan, Bala
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.23 no.4
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    • pp.431-437
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    • 2019
  • PLC(Power Line Communication) is being used in various ways in smart grid system because of the advantages of low cost and high data throughput. However, power line channel has many problems due to impulse noise and various studies have been conducted to solve the problem. Recently, ACDL(Adaptive Cannonical Differential Limiter) which is based on an adaptive clipping with analog nonlinear filter, has been proposed and performs better than the others. In this paper, we show that ACDL is similar to the detection of slew rate with oversampled digital signal by simplification and analysis. Through the simulation under the PRIME standard it is shown that the proposed performs equal to or better than that of ACDL, but significantly reduce the complexity to implement. The BER performance is equal but the complexity is reduced to less than 10%.

The Effectiveness due to fixed position change of fault protective wire on catenary system (전차선로에서 보호선 설치 위치변경에 따른 효과 검토)

  • Ryoo, Hyang-Bok;Ahn, Young-Hoon;Hyun, Chung-Il;Kang, Seung-Wook
    • Proceedings of the KSR Conference
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    • 2007.11a
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    • pp.1456-1459
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    • 2007
  • Protective equipments have a very important protection role in power accident on catenary line. These equipments are installed on electrical pole. The poles have complicated with many bands(moveable bracket, branch wire anchor, shield wire, etc). So we have improved bands and installed bands on pole to test technical condition. The Result has showed effectiveness due to fixed position change of fault protective wire and to improve band shape. For example, reduction of band made cost, simplification of installing, correct position of protective wire and shield wire.

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The Interchange in Drawing Styles between Cartoon and Fashion illustration (만화와 패션 일러스트레이션의 그림체적 교류)

  • Sung, Kwang-Sook
    • Journal of the Korean Society of Costume
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    • v.59 no.4
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    • pp.82-97
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    • 2009
  • In this study, it can be identified that drawing style of cartoon and fashion illustration are mutually linked and interchanged. The common background of drawing style between cartoon and fashion illustration, is as follows; 1. A means of image communication through mass communication 2. Similarities as visual signs 3. The borderless of painting, illustration and cartoon. 4. Usage of common drawing expressions such as deformation, distortion, exaggeration, metaphor, metonymy. Drawing style interchanging between cartoon and fashion illustration, is as follows; 1. Similar to figure and face are contemporary style, similar figure, Anime style and humourous style. 2. Similar to the way of express is focusing on the line, simplification, mixed computer graphics with hand drawing, artistic expression, the way of multimedia.