ME Research Publications
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A study on smart SansEC skin sensing for real-time monitoring of flexible structures
(IEEE, 2018-02-02)The bending deflection of a flexible physical system was investigated during its forced dynamic deformation utilizing electromagnetic resonant SansEC sensing. The dynamic frequency response function (DFRF) was measured ... -
Sensitivity and uncertainty analyses of ex-vessel molten core cooling in a flooded cavity during a severe accident
(Elsevier Ltd., 2018-03)Sensitivity and uncertainty analyses of molten core cooling under the ex-vessel phase of a severe accident of a light water reactor was performed with the COOLAP-I (COOLability Analysis Program-I) model, a parametric model ... -
On the limitations of volume-averaged descriptions of gas diffusion layers in the modeling of polymer electrolyte fuel cells
(Electrochemical Society, Inc., 2017)Understanding of the coupled transport processes that occur in thin gas diffusion layers (GDLs) is necessary to develop improved designs. The traditional technique used to model GDLs is the volume-averaged approximation. ... -
A comprehensive survey of the analytical, numerical and experimental methodologies for dynamics of multibody mechanical systems with clearance or imperfect joints
(Elsevier, 2018-04)A comprehensive survey of the literature of the most relevant analytical, numerical, and experimental approaches for the kinematic and dynamic analyses of multibody mechanical systems with clearance joints is presented in ... -
Effect of nanoclay and graphene inclusions on the low-velocity impact resistance of Kevlar-epoxy laminated composites
(Elsevier, 2018-03-01)This experimental study shows the effectiveness of geometries (1D and 2D) and surface energies of nanofillers on the impact resistance, damage tolerance and environmental degradation resistance of Kevlar fiber-reinforced ... -
Review of welding residual stress stiffening effect on vibrational characteristics of structures using damage approach and vibratory stress relief implementation
(ASME, 2017)There is a huge amount of research and study on the quality, parameter manipulation, material selection etc. of welding to develop optimized results for specific applications. To have a profound understanding of the process, ... -
Adsorption and capillary condensation in nanogap with nanoposts
(ASME, 2017)Adsorption isotherm and adsorption-capillary transition theories have been developed based on homogeneous micro-/nanoporous materials and structures. However, material and structures are often heterogeneous including local ... -
Enhanced transport properties of graphene-based, thin Nafion (R) membrane for polymer electrolyte membrane fuel cells
(Wiley, 2018-02)A polymer electrolyte membrane fuel cell (PEMFC) is one of the promising renewable energy conversion systems; however, its performance is considerably limited by the sluggish transport properties and/or reaction kinetics ... -
Encapsulation of natural ingredient for skin protection via nanoemulsion process
(SPIE, 2017-04-17)Many of the sunscreens are used during the hot summer time to protect the skin surface. However, some of ingredients in the sunscreens, such as oxybenzone, retinyl palmitate and synthetic fragrances including parabens, ... -
Effects of heat treatments and UV exposures on mechanical properties of 3D printed acrylonitrile butadiene styrene specimens
(SPIE, 2017-04-17)Over the last few years, tremendous amount of research efforts has been conducted on 3D printing materials, methods and systems. Various 3D printer materials in different size, shape and geometry can be used for advanced ... -
Exploiting immiscible aqueous-nonaqueous electrolyte interface toward a membraneless redox-flow battery concept
(Electrochemical Society, Inc., 2017-08-30)A new concept of membraneless battery based on immiscible aqueous and nonaqueous stratified-electrolytes was studied in a static cell for the purpose of constructing a redox flow battery (RFB). By selectively dissolving ... -
A study on the dynamics of spatial mechanisms with frictional spherical clearance joints
(ASME, 2017-09)An investigation on the dynamic modeling and analysis of spatial mechanisms with spherical clearance joints including friction is presented. For this purpose, the ball and the socket, which compose a spherical joint, are ... -
Chapter 1 -- Basics of Polymers and Polymer Nanocomposites as Dielectric Materials
(Pan Stanford Publishing Pte. Ltd., 2017)When the polymer has a flexible chain structure, this polymer could develop into highly ordered crystal structures. However, for polymer materials, it is very difficult to achieve 100% crystallinity. Thus, semi-crystalline ... -
Chapter 5 -- Poly(Vinylidene Fluoride) in Dielectric Nanocomposites
(Pan Stanford Publishing Pte. Ltd., 2017)The commercial plastic dielectric films today are dominated by those made of polypropylene and polyester because of their high electrical breakdown strength, low dielectric loss, self-healing ability, low cost, etc. However, ... -
Chapter 2 -- Theoretical Analysis of Dielectric Relaxation in Polymer Nanocomposites
(Pan Stanford Publishing Pte. Ltd., 2017)Figure 2.1 Schematic illustration of a dipole.According to Fig. 2.1, it is obvious that magnitude of a dipole is determined by both the separation distance (a) between positive and negative charges and the amount of charges ... -
Chapter 4 -- Graphitic Nanomaterials and Their Polymer Nanocomposites for Dielectric Applications
(Pan Stanford Publishing Pte. Ltd., 2017)The large difference in the electrical conductivity between insulating polymers and highly conductive nanomaterials is believed to be responsible for strong interfacial polarization in conductive polymer nanocomposites. ... -
Chapter 3 -- Perovskite Ceramics and Their Polymer Nanocomposites
(Pan Stanford Publishing Pte. Ltd., 2017)Many inorganic ceramics have large permanent dipole moment, due to their chemical compositions and crystal structures. They typically exhibit very high dielectric permittivity up to a few thousands, in contrast to the low ... -
Chapter 6 -- Copolymers in Dielectric Polymer Nanocomposites
(Pan Stanford Publishing Pte. Ltd., 2017)In Chapter 5, we discussed poly(vinylidene fluoride) (PVDF) as a popular matrix material for nanocomposites with high dielectric performances. In particular, because of its high polarization, piezoelectricity, and ... -
Chapter 8 -- Hybrid Polymer Nanocomposite Systems
(Pan Stanford Publishing Pte. Ltd., 2017)Dispersion, distribution, and surface properties of different nanomaterials are among the most important factors that affect properties and functionalities of polymer nanocomposites. Therefore, a great amount of effort has ... -
Chapter 7 -- Dielectric Properties of Bionanocomposites
(Pan Stanford Publishing Pte. Ltd., 2017)Bionanocomposites represent an emerging group of nanostructured hybrid materials. Besides the structural and functional properties similar to conventional nanocomposites, the inherent properties, namely, biocompatibility ...
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