• Title/Summary/Keyword: slim

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Design of Slim Actuator with Symmetric Electromagnetic Circuit (대칭형 자기회로를 갖는 슬림형 엑추에이터의 설계)

  • Woo, Jung-Hyun;Park, No-Cheol;Park, Young-Pil;Park, Kyoung-Su;Oh, Young-Se;Kim, Ki-Beom
    • Transactions of the Society of Information Storage Systems
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    • v.6 no.1
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    • pp.6-11
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    • 2010
  • Researches for actuator which is appropriate to slim optical disk drive (ODD) have been progressed for a long time. Various types of actuators are suggested to secure high performances with slim thickness. In this paper, the slim actuator with symmetric electromagnetic (EM) circuit is suggested to apply slim ODD. Various EM circuits are proposed to increase EM force in the focusing and the tracking directions. Flexible mode frequencies and driving sensitivities are increased by using stress distribution and design of experiment (DOE). Consequently, final model is suggested to have high flexible mode frequencies and driving sensitivities.

Conveyor system equipped with and driven by a moving primary-typed SLIM (편측식 선형유도전동기를 구동원으로 한 반송설비시스템)

  • 이철직
    • The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.11 no.5
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    • pp.53-61
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    • 1997
  • 본 연구에서는 편측식 선형 유도전동기(SLIM)를 구동원으로 한 지상 2차 방식의 반송설비시스템을 실험장치로서 구성하고, 이에 적용된 SLIM의 해석 및 설계을 위하여 Goodness factor와 가동자의 주행패턴을 고려하였다. 또한, 반송설비시스템의 추진구동원에 적용된 SLIM의 설계에 대한 타당성을 고찰하고자 유한요소법(FEM)에 의한 해석결과와 실험결과를 비교·분석하였으며, 이로부터 반송설비시스템은 물론 산업용 제어기기에 이르기까지 SLIM의 응용을 위한 기초자료를 제시할 수 있었다.

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CDT Super Slim의 새로운 기회

  • Jo, Hyeon-Beom
    • Information Display
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    • v.7 no.6
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    • pp.3-6
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    • 2006
  • Slim CRT의 등장은 CRT 산업에 다시 한번 생기를 불어 넣어주는 기회가 되었다. TV용 Slim CPT(Color Picture Tube)의 성공과 함께 모니터용 CDT(Color Display Tube)의 Slim 성공은 한층 더 치열한 디스플레이 산업을 예고하고 있다. CDT는 CPT보다 더 높은 해상도와 정교한 Linearity 특성을 가져야 하므로 Slim CRT를 구현을 위한 광각 편향에 대하여 더 높은 기술적 대응이 요구된다. LG.Philips Displays(LPD)는 CDT에서 106도 편향을 구현함으로써 전장이 320mm인 CDT를 세계 최초로 실현하였다. 이는 기존 Flat CDT가 90도 편향에 전장이 375mm 인 것 대비하여 전장을 56mm 축소하는 성과를 가져왔다. [그림 1]은 기존의 17"Normal CDT와 17"CDT SuS를 비교한 것이다.

The Speed Control of a Single-sided Linear Induction Motor for the Automatic Conveyor system (자동 반송 시스템용 SLIM의 속도제어)

  • Jeong, B.C.;Cho, Y.H.;Lee, O.G.;Shin, D.R..;Woo, J.I.
    • Proceedings of the KIEE Conference
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    • 1995.07a
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    • pp.285-287
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    • 1995
  • In the case of driving the SLIM(Single-sided Linear Induction Motor) as the VVVF inverter, the performance of SLIM, which is a thrust, normal force and so on, varies according to a slip frequency as a function of the external load. It is impossible that the open-loop control method control the speed of a SLIM accurately. So that, this paper is proposed the speed control method of a SLIM for a automatic conveyor system with the slip frequency vector control method. To analyze the dynamic characteristics of a SLIM, the state equation is derived from the equivalent circuit of the SLIM, ignored the end effect. The slip frequency and the normal force of SLIM are constantly controlled at the steady state. The simulated results is compared with the experimental values.

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Reduction of Local Body Fat Thickness and Stimulation of Fat Cell Lipolysis by Slim813 (Slim813의 지방산 분해 촉진을 통한 슬리밍 효능 연구)

  • Park, Mi-Young;Jung, Kyoung-Mi;Joo, Kyoung-Mi;Kim, Yeon-Joon;Park, Young-Ho;Lim, Kyung-Min
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.38 no.2
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    • pp.189-195
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    • 2012
  • Slim813 is a 2-cyclopentene-1-one oxime derivative with potent anti-inflammatory and anti-photoaging effects. Slim813 inhibited LPS-induced TNF-${\alpha}$ production and attenuated UVB-induced MMP1 expression. Here in an attempt to find an unrevealed efficacy of Slim813, we found that Slim813 stimulates lipolysis in a dose-dependent manner by increasing intracellular cAMP level through the elevation of HSL activity in fully differentiated adipocytes. Moreover, topical application of Slim813 for two weeks in human reduced the thickness of subcutaneous fat in arm and thigh regions, implying it could be effectively used in the reduction of unwanted local fat accumulation.

Serviceability Evaluation of Slim Composite Floor System (슬림 합성보 바닥시스템의 사용성 평가)

  • Eun, Hee-Chang
    • KIEAE Journal
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    • v.8 no.6
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    • pp.63-70
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    • 2008
  • Slim floor construction is becoming used throughout many countries. It combines the advantages of flat slab construction with significant inherent resistance to fire. The slim floor system with web openings leads to the reduction of its self-weight. Although the system has enough strength and stiffness, it is necessary to evaluate and improve the effects of dynamic vibration to be able to annoy the residents. Thus, this study evaluates the serviceability of vibration effects based on the dynamic test of five slim composite beams. Based on the experimental results, the initial stiffness and natural frequency of all specimens exhibit the similar trend regardless of the opening and the shape of cross section. The decrease in natural frequency is deeply related to the reduction in the stiffness of specimens and thus, it can be concluded that the damage of slim composite floor can be detected by the measurement of natural frequency instead of the load-carrying capacity and the stiffness.

A Operating by the Direct Thrust Control of SLIM in Conveyor System (반송용 SLIM의 추력제에에 의한 운전특성)

  • 우정인;노태균;신동률;노인배
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.12 no.3
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    • pp.59-66
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    • 1998
  • In this paper, the thrust control of PWM Inverter-Fed SLIM(Single-sided Linear Induction Motor) is achieved with Space Vector control and PI control. The trembling of air gap length which is occurred between the primary winding core and the secondary structure of the SLIM must be minimized in order to get quick response characteristics. First, the equivalent circuits and voltage equations of SLIM are shown on th suitable d-q axis which analyze characteristics of the thrust and the normal force. Also, modeling and analysis of the equivalent circuits transferred d-q axis are able to make robust transient torque from the current regulation in the equivalent circuit. These results exemplified the direct drive of SLIM with the reference speed and torque were verified by experiments.

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Comparing floor height reduction effect of slim floor system with square steel pipe (각형강관을 이용한 슬림플로어 시스템의 층고절감효과 비교)

  • Cho, Youn-Jin;Rhim, Hong-Chul;Kim, Dae-You;Lyu, Seung-Il;Kim, Do-Kyun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.05a
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    • pp.56-57
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    • 2017
  • In recent years, new construction methods have been required to reduce the construction cost and increase the available area in an environment where construction work is frequently performed in a narrow urban area like Korea. As a result of these studies, slim floor composite beam has been suggested. Slim floor composite beam can reduce required depth because web of steel beam is embedded in the slab, so it is effective to reduce floor height and increase the available area. The purpose of this study is the floor height reduction evaluation by comparing system consisting of reinforced concrete, steel, and slim floor using square-shape steel pipe. After doing structural design for a typical plan, checked effectiveness by comparing each design plan. It is proven that slim floor composite beam can reduce required depth effectively comparing required materials of other system.

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SuperSlim의 새로운 기회

  • Go, Nam-Je
    • Information Display
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    • v.6 no.2
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    • pp.5-9
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    • 2005
  • LG.Philips Displays(LPD)의 SyperSlim은 125도의 편향각과 Deep Gun insertion을 적용하여 개발한 길이 350 mm의 초슬림 CRT이다. SuperSlim은 놀랄만한 디자인으로 브라운관의 주력시장으로써 CRT의 life cycle을 오랫동안 연장시킬 것이다.

Bodice Pattern Development of the Slim-fit Dress Shirt for Middle-aged Males Using 3D Body Scanning Data (3D Body Scanning Data를 활용한 중년 남성용 슬림 핏(Slim-fit) 드레스 셔츠 바디스 패턴개발연구)

  • Suh, Chuyeon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.40 no.1
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    • pp.171-187
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    • 2016
  • The study performed a comparison analysis of market brand patterns for slim-fit dress shirts and analyzed the body surface development figure of men in their 40s using 3D body scan data and developed slim-fit dress shirt patterns suitable for middle-aged men. The sizes of slim-fit dress shirt patterns showed a slight difference depending on brand. The overlap map of slim-fit dress shirt patterns for brands demonstrates how difference of one-dimensional sizes reflect on two-dimensional patterns. This map provides useful information for pattern design and allows and easy recognition of pattern size differences. A try-on system evaluation through 3D-Simulation allows a grasp of the fitness of neckline and size tolerance of under the arms in front, the silhouette of side lines, and overall fitness in front that also allows analysis of the front/back balance of a shirt in side, the size tolerance proportion in front/back, and the fitness of the arm-hole line. Thus, we obtained try-on results that were equivalent to wearing actual clothing. According to the drafting size suggested in the developed final pattern, the total width was 'C/2+5.5cm', and the front was set at 1cm bigger in the size difference of the front and back. The width of the front neck and the back neck was set identically at 'C/12', while the width of the front neck was set to 'C/12+1.5cm'. For the armhole depth, we added 'C/4+2cm', and '0.5cm and 1.5cm' for the width of the front and back to anthropometry. The results of the try-on evaluation through 3D-Simulation indicated that the fitness of the final slim-fit dress shirt pattern was superior to available slim-fit dress shirt patterns on the market and evaluated as superior to the types for middle-aged men.