• 제목/요약/키워드: general forms

검색결과 862건 처리시간 0.028초

압력분포 측정시스템의 개발 (Development of a Pressure Distribution Measurement System)

  • 정진호;이기원;김영호
    • 대한의용생체공학회:의공학회지
    • /
    • 제21권2호
    • /
    • pp.213-218
    • /
    • 2000
  • Pressure distributions of the soft tissue are valuable for understanding and diagnosing the disease characteristics due to the mechanical loading. Our system measures dynamic pressure distributions in real-time under the general PC environment, and analyzes various foot disorders. Main features of the developed system are as follows: (1) With the resistive pressure sensor matrix of 40${\times}$40 cells, the data is sent to the PC with the maximum sampling rate of 40 frames/sec. (2) For each frame, contact area, pressure and force are analyzed by graphic forms. Thus, various biomechanical parameters are easily determined at specific areas of interests. (3) A certain stance phase can be chosen for the analysis from the continuous walking, and the detailed biomechanical analysis can be done according to an arbitrary line dividing anterior/posterior or medial/lateral plantar areas. (4) The center of pressure (COP) is calculated and traced from the pressure distribution data, and thus the movement of the COP is monitored in detail. A few experiments revealed that our system successfully measured the dynamic plantar distribution during normal walking.

  • PDF

우레탄 보드를 활용한 옥상 뜬바닥 구조공법의 휨강도에 관한 기초적 실험 (Foundational Experiments about Bending Strength of Floating Floor Method on Roof-top by using a Polyurethane Board)

  • 박길범;박준모;김옥규;정일기
    • 한국건축시공학회:학술대회논문집
    • /
    • 한국건축시공학회 2016년도 춘계 학술논문 발표대회
    • /
    • pp.15-16
    • /
    • 2016
  • The roof-top of deteriorated building is necessary to improve that performance of waterproof and heat insulation is lowered. However, the existing method is difficult to supply due to complicated process and high cost. Therefore, practical condition and demand for occupant considered, it is necessary to develop inexpensive and easy method, such as a floating floor method using thermal insulation. This study is experiments on foundational experiment was conducted on the bending strength. A polyurethane board for experiment forms a square and it has various size that 25cm, 33cm, 50cm, and 100cm. Meanwhile, the uniform load of 200kg/㎡ which general working load is applied to the bending strength.

  • PDF

송풍기 구동용 단상 SRM의 이론적 설계파라미터 산정 (Computation of theoretical design parameter of sin91e Phase SRM for a blower drives)

  • 이종한;이충원;이은웅;오영웅
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2003년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
    • /
    • pp.88-90
    • /
    • 2003
  • SRM has a characteristic of a robust, simple structure and wide operating ranges. So, recently it has studied and developed in many kinds and forms with the technology of power electronics and analysis and design by use of computer. Also, It is used in a very wide range of industrial applications. In particular, single phase switched reluctance motor has a merit in practical use because it has simple operating drives and control systems, very high energy density per unit volume comparing with three phase SRM. But it must have a starting device. In this paper design procedures of single phase SRM development for blower drives are presented. It is selected the design parameters by compared with design theory of general electric machine and poly phase SRM. Also it is simulated the designed prototype model by FEM for the prediction of characteristics.

  • PDF

색소폰 연주자를 위한 앙부슈어 보조 도구의 제작 (An embouchure aid for saxophone player)

  • 문호진
    • Restorative Dentistry and Endodontics
    • /
    • 제37권1호
    • /
    • pp.54-60
    • /
    • 2012
  • This study aims to introduce the method that can relieve vibrating forces to oral environment by making an embouchure aid. Thin plastic crown forms were fabricated to prevent tooth abrasion and irritation to lip mucosa for the saxophone player. After application to the player, the most comfort form was chosen and delivered to 3 professional saxophone players. After 5 mon, the players responded to the survey. This embouchure aid did not disturb playing and gave comfort to lower lip. In general, the players preferred thin soft type and thought it caused little effect on sound. Far too little attention has been paid to the problems encountered by single-reed wind instrumentalist who suffer from tooth abrasion and irritation to lip mucosa. The embouchure aid not only prevent tooth damage but also diminish the discomfort of tight embouchure.

인터넷에 의한 증권거래에 관하여 - ILA. Committee on International Securities Regulation에서의 논의 - (On the Internet Securities Transaction)

  • 박영길
    • 한국중재학회지:중재연구
    • /
    • 제12권2호
    • /
    • pp.221-262
    • /
    • 2003
  • In recent years, information technological revolution of using Internet in the Stock Market has shown reconsideration of Securities and Exchange Law. Since the 1998 Taipei Conference, ILA have studied upon it and presented 6th Interim Report during the 2000 London Conference. This paper summarizes a part of the 6th Interim Report. The Internet has created a medium to which traditional principles of jurisdiction may not have full relevance. To understand the jurisdictional issues posed by this new medium, we should first review the traditional principles of jurisdiction under international, U. S. law and Other Countries law. In previous reports, the general principles of jurisdiction in international law have been described. These principles are, however, difficult to apply in the context of Internet and other forms of computerized securities trading. Regulators all over the world are trying to address and solve jurisdictional issues raised by the Internet. The traditional rules of jurisdiction in international law, grounded as they are on a geography-based approach, may be in the process of being undermined by the Internet and other global networks allowing for remote access to information and to markets.

  • PDF

Astronomy in Antarctica

  • Burton, Michael
    • 천문학회보
    • /
    • 제38권1호
    • /
    • pp.26-26
    • /
    • 2013
  • The high Antarctic plateau is the driest and coldest environment on the surface of the Earth and offers superlative conditions for the conduct of a wide range of astronomical observations, from optical to millimetre wavebands. This includes, especially, the infrared - where the sky background is greatly reduced from temperate sites - and the sub-millimetre / THz bands - where new or cleaner atmospheric windows can be viewed through. Astronomical observations have now been conducted from five locations on the Antarctic plateau - the South Pole, Domes A, C and F, and Ridge A. Ambitious plans for the construction of observatories there have been announced. An IAU Symposium on "Astrophysics from Antarctica" featured as part of last year's IAU General Assembly in Beijing. This talk will provide an overview of astronomy in Antarctica, describing the special conditions that make some forms of observation particularly favourable there, and discuss the development of observatories on the Antarctic plateau and the plans for their future development.

  • PDF

Mindlin판 특성함수를 이용한 직교이방성 후판의 진동해석 (Vibration Analysis of Thick Orthotropic Plates Using Mindlin Plate Characteristic Functions)

  • 이종문
    • 한국해양공학회지
    • /
    • 제17권3호
    • /
    • pp.21-26
    • /
    • 2003
  • An iteractive Kantorovich method is presented for the vibration analysis of rectangular orthotropic thick plates. Mindlin plate characteristic functions are derived in general forms using the Kantorovich method. Initially, Timoshenko beam functions consistent with the boundary conditions of the plate were used. Through numerical calculations of natural fairs of appropriate models, it has been confirmed that the method presented is superior to the Rayleigh-Ritz analysis or the finite element analysis in both accuracy and computational efficiency.

확률적 확산을 이용한 스테레오 정합 알고리듬 (New stereo matching algorithm based on probabilistic diffusion)

  • 이상화;이충웅
    • 전자공학회논문지S
    • /
    • 제35S권4호
    • /
    • pp.105-117
    • /
    • 1998
  • In this paper, the general formula of disparity estimation based on Bayesian Maximum A Posteriori (MAP) algorithm is derived and implemented with simplified probabilistic models. The probabilistic models are independence and similarity among the neighboring disparities in the configuration.The formula is the generalized probabilistic diffusion equation based on Bayesian model, and can be implemented into the some different forms corresponding to the probabilistic models in the disparity neighborhood system or configuration. And, we proposed new probabilistic models in order to simplify the joint probability distribution of disparities in the configuration. According to the experimental results, the proposed algorithm outperformed the other ones, such as sum of swuared difference(SSD) based algorithm and Scharstein's method. We canconclude that the derived formular generalizes the probabilistic diffusion based on Bayesian MAP algorithm for disparity estimation, and the propsoed probabilistic models are reasonable and approximate the pure joint probability distribution very well with decreasing the computations to 0.01% of the generalized formula.

  • PDF

병렬판상전극의 수조모델 시뮬레이션 해석 (Analysis for Water tank model simulation of parallel plate electrodes)

  • 고희석;김성삼;이충식;최종규;류희석
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2003년도 하계학술대회 논문집 A
    • /
    • pp.280-282
    • /
    • 2003
  • In this paper we tried to analyze through the water tank model to solve these kinds of problems about the square plate earth electrode using general facilities with being compared with the theory formula announced before. The square plate earth electrode that haven't investigated so far is analyzed by being based on laid rod electrode. And the each kind of calculation model was investigated with the experiment of water tank. An experiment of the vertical square Plate electrode about laying depth in the center of the surface of the water has already done with the practical models that have different forms of electrodes.

  • PDF

현대 실내건축의 벽의 오브제(object)적 특성에 관한 연구 (A Study on the Wall as Objects in Contemporary Interior Architecture)

  • 최선영;김도훈;이정욱
    • 한국실내디자인학회:학술대회논문집
    • /
    • 한국실내디자인학회 2001년도 춘계학술발표대회 논문집
    • /
    • pp.45-50
    • /
    • 2001
  • The modern architecture has to find more essential configuration order rather than the spatial order in the reasonable feint. In other side, paintings and sculptures as a part of the building in the past become a pure art and develop an abstract art. Also they make many affects on the modern architecture as a paradigm. New material has brought to the new forms and the changes of the overall culture and art. One of the new changes has made the object that is one of unique culture symptoms in the 20C and the general part of the modem art includes it. The wall that limits the inside area through mass and volume before the recent times had treated as the object to express the special mean and character. However, the wall has developed as a component that consists of the internal space through surface and volume rather than mass or structure since the recent times. Now, I survey the objective tendency of the wall in the modem interior architecture mainly focused on the relation between object in the abstract art and wall inside.

  • PDF