14 Result(s)
within
Article
Woo Il Lee
English
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Article
Assessment of Long Fiber Spray-up Molding of Chopped Glass Fiber Reinforced Polydicyclopentadiene Composites
Chopped strands of glass fiber reinforced polymerized dicyclopentadiene (p-DCPD) was manufactured and mechanical properties were assessed. For the purpose, a lab-scale long fiber spray-up molding apparatus had...
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Preference for Case Materials in Smart Devices: A Comparative Study in Korea, USA, and Tanzania
This paper investigates how people perceive the same material differently according to sex and nationality and what types of materials they prefer. We surveyed the sense of and preference for materials through...
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Simulation of Multi-cavity Micro-injection System for Reducing Cavity Filling Deviation
In micro-injection molding, it is important to make each cavity filled uniformly. However, there are several factors that cause deviation in cavity filling. These factors include the mold temperature different...
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Evaluation of Interfacial and Mechanical Properties of Glass Fiber/Poly-Dicyclopentadiene Composites with Different Post Curing at Ambient and Low Temperatures
Recently new poly-dicyclopentadiene (p-DCPD) has increasing been used for composites in military, aerospace, and transportation applications due to its favorable impact properties. In this work, the cross-linking...
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Analysis of thermal properties and heat transfer mechanisms for polyurethane foams blown with water
Rigid polyurethane foam (PUF) is one of the outstanding insulation materials and has been widely used in freezers and cryogenic facilities. Among the various blowing agents used in the manufacturing PUF, water...
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Minimal contact formation between hollow glass microparticles toward low-density and thermally insulating composite materials
In this study, syntactic foams composed of maximal hollow glass microparticles (HGMPs) volume fraction with improved thermal insulation performance and reasonable mechanical strength were fabricated through a ...
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Microstructure and property characterization of flexible syntactic foam for insulation material via mold casting
The flexible syntactic foam with increasing attention as an eco-friendly building insulation material was manufactured via mold casting. The total porosity of the dried flexible syntactic foam had a very high ...
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Effect of radius of gyration on polymer deformation for thermal nanoimprint lithography
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Molecular Dynamic Simulation on the Effect of Polymer Molecular Size in Thermal Nanoimprint Lithographic (T-NIL) Process
Molecular dynamic simulation of thermal nanoimprint lithographic (T-NIL) process has been performed to study the effect of the polymer molecular size on polymer flow for various mold cavity geometries. First, ...
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Molecular Dynamic Studies on Deformation of Polymer Resist During Thermal Nano Imprint Lithographic Process
Molecular dynamic simulation of nano imprint lithography (NIL) in which nanoscale patterned stamp is pressed onto amorphous polyethylene (PE) surface is performed to study the deformation behavior of polymer r...
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Dispersive Evaluation and Self-Sensing of Single Carbon Fiber/CNT-Epoxy Composites using Electro-Micromechanical Techniques
Self-sensing and interfacial evaluation were investigated with different dispersion solvents for single carbon fiber/carbon nanotube (CNT)-epoxy composites by electro-micromechanical technique and acoustic emi...
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Abstracts from the 6th International Conference on the Engineering of Sport, 10–14 July 2006, Olympic Hall, Munich, Germany
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A semi-implicit method for the analysis of two-dimensional fluid flow with moving free surfaces
Flow with moving free surfaces is analyzed with an the Eulerian coordinate system. This study proposes a semi-implicit filling algorithm using VOF in which the PLIC (Piecewise Linear Interface Calculation)-typ...
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Article
Solving a nonlinear inverse convection problem using the sequential gradient method
This study investigates a nonlinear inverse convection problem for a laminar-forced convective flow between two parallel plates. The upper plate is exposed to unknown heat flux while the lower plate is insulat...
