• Title/Summary/Keyword: Physical part

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공급 사슬 상에서 Cross Docking을 고려한 Vehicle Routing Scheduling(VRS)

  • 이경민;이영해
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2003.11a
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    • pp.325-328
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    • 2003
  • Fierce competition in today's global markets, the heightened expectation of customers have forced business enterprises to invest in, and focus attentions on, their Supply Chains, Also Cross Docking is an essential part of SC, and integrating Cross Docking with vehicle routing scheduling is needed to smoothly link the physical flow of SC, However, there is no the mathematical model which focuses on Cross Docking with vehicle routing scheduling. Therefore, the integrating model considers Cross Docking and vehicle routing scheduling will be developed in this paper. And the solution based on Tabu algorithm to this model will be provided.

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Mirror Therapy for Phantom Limb Pain

  • Kim, Sae-Young;Kim, Yun-Young
    • The Korean Journal of Pain
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    • v.25 no.4
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    • pp.272-274
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    • 2012
  • Phantom limb pain is a painful sensation that is perceived in a body part that no longer exists. To control this pain, many methods have been used such as medication, physical treatment, nerve block, neuromodulation, surgical treatment and mirror therapy. However, until now, there effects have been uncertain. We report the successful reduction of phantom limb pain using mirror therapy when other treatments initially failed to control the pain.

Evaluation of Physical Performance of High-Strength.High Waterproof Ready-mixed Shotcrete using Powdered Polymer Dispersion (분말형 폴리머 혼화제를 적용한 고강도.고차수성 레디믹스트 숏크리트의 물리적 성능 평가)

  • Ma, Sang-Joon;Choi, Hee-Sup;Lee, Heung-Soo
    • Proceedings of the Korea Concrete Institute Conference
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    • 2008.11a
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    • pp.337-340
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    • 2008
  • As the Ready-mixed Shotcrete using Powdered Polymer Dispersion, Shotcrete Matrix as totally shotcrete gel that a part of second binder in Shotcrete materials is dense. Also, Ready-mixed Shotcrete is showed the decreasing Rebound and rising Durability. Therefore, it is possible that Ready-mixed Shotcrete for High-Strength and High-Waterproof can apply to the Powdered Polymer Dispersion.

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Investigation of LN2 Lubrication Effect in Cryogenic Machining -Part 2: Friction Coefficient related to Tool Wear with Mathematical Evaluation- (초 냉각 가공에서의 LN2 의 감찰 효과 연구 -공구 마모에 의한 마찰 계수 이론적 전개-)

  • Seong-Chan, Jun;Woo-Cheol Jeong
    • Proceedings of the Safety Management and Science Conference
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    • 2002.05a
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    • pp.215-219
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    • 2002
  • In this paper some physical evidences indicate that reduced friction occurs in an cryogenic machining process, in which LN2 is applied to the selected cutting zone. LN2 also reduced the tool wear rate to a great extent and elongated the tool life up to four times compared to emulsion cooling.

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Real-time simulation on B-spline deformable volume-part III (B-spline volume 변형체의 실시간 시뮬레이션 II)

  • 전성기;조맹효
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2002.10a
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    • pp.70-77
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    • 2002
  • Since our physical world cannot be modeled as rigid body, deformable object models are important. For real-time simulation of elastic object, it must be guaranteed by its exact solution and low-latency computational cost. In this paper, we describe the boundary integral equation formulation of linear elastic body and related boundary element method(BEM). The deformation of elastic body can be effectively solved with 1ow run-time computational costs, using precomputed Green Function and fast low-rank updates based on Capacitance Matrix Algorithm.

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Turbine Blade Surface Modeling of Point Data Fitting (측정 데이타를 이용한 터어빈 블레이드의 곡면설계)

  • Ryu, Gap-Sang;Park, Sam-Jin
    • 한국기계연구소 소보
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    • s.19
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    • pp.163-169
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    • 1989
  • Many computer programs are being developed to aid the design of physical models. These efforts highlight the importance of computer model of three dimensional object. In this paper a CAD application program is introduced which can be implemented to modeling some part that composed with 3 types of surface form ; free form surface, fillt surface, surface of revolution, and a geometry description language which can represent a shape efficiently is preseneted.

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Use of Binder Treatment to Enhance Properties of Premixes

  • Gelinas, Claude;St-Laurent, Sylvain
    • Proceedings of the Korean Powder Metallurgy Institute Conference
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    • 2006.09b
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    • pp.706-707
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    • 2006
  • Premixes treated with a binder, such as in the FLOMET process, exhibit better flow, reduced dusting and segregation and improved productivity and part consistency compared to conventional premixes. The binder treatment is highly suitable for high performance P/M applications which often require premixes containing very fine alloying additives and excellent die filling characteristics. With this process, various binders and lubricants can be utilized in order to make premixes with unique properties. In this paper, the characteristics and performances of bonded premixes are reported.

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Development of Panel Part in Flight Simulator based on PC (PC 기반의 항공기 시뮬레이터 패널부분 개발)

  • 이준우;채상원;이칠기
    • Journal of the Korea Society for Simulation
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    • v.10 no.4
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    • pp.31-40
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    • 2001
  • The flight simulator should be made like a actual flight. For the scene of sight, instrument should show the condition of flight and the pilot should catch the altitude, speed, pose and rate of lift of the airplane. This paper describes visual training program of driving airplane in practice. It is for beginners using joystick in PC, implements airplane physical equations. Flight simulator in it implements airplane panel parts in order to make simple modeling, And it uses rendering technology to implement vision parts of panel. It uses double buffering In make it faster and more efficient..

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The Effects of Tetragonality to the Physical Properties of PZT (PZT에서 Tetragonality 변화에 따른 물성변화)

  • 정훈택;김호기
    • Journal of the Korean Ceramic Society
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    • v.24 no.1
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    • pp.56-62
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    • 1987
  • Tetragonal phase PZT ceramics with a tetragonality of c/a=1.027 to 1.041 were sintered at 1275$^{\circ}C$ for one hour. And the directionality of domain arrangement, microstructure, dielectric and aging properties were investigated. With increasing tetragonality, the directionality of domain arrangement of 180$^{\circ}$-domain on the surface is smaller than that in the internal part of specimens. Dielectric constants after poling are increased due to the increased internal energy or decreased due to the microcracks created by poling.

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Biodegradable Inorganic-Organic Composite Artiticial Bone Substitue -Part2. Collagen purification and its physical and biological properties-

  • Hwal Suh
    • Journal of Biomedical Engineering Research
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    • v.15 no.3
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    • pp.341-346
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    • 1994
  • To develop an artificial bone substitute that is gradually degraded and replaced by the regenerated natural bone, the authors designed a composite that is consisted of calcium phosphate and collagen. To use as the structural matrix of the composite, collagen was purified from human umbilical cord. The obtained collagen was treated by pepsin to remove telopeptides, and finally, the immune-free atel- ocollagen was produced. The cross linked atelocollagen was highly resistant to the collagenase induced collagenolysis. The cross linked collagen demonstrated an improved tensile strength.

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