Materials Literature
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The crystallographic structure and morphology of redox active transition metal oxides have a pronounced effect on their electrochemical properties. In this work, h-MoO3 nanostructures with three distinct morphologies, i.e., pyramidal nanorod, prismatic nanorod and hexagonal nanoplate, were synthesized by a facile solv…
Manganese oxides can undergo an electrochemical activation step that leads to greater capacitances, of which the structural change and mechanism remains poorly understood.
We investigated the effects of adhesive interlining on wearing and moving comfort and garment pressure exerted on the body. Scheffe's paired comparison test was performed for sensory evaluation of four jackets of the same pattern: one without interlining and three with different adhesive interlinings. The bonded fabri…
The purpose of a lining is to provide the comfort of the wearer, preserve the shape of the sportswear, conceal construction details and raw edges of fabric, thus giving a neat appearance to the inside of the sportswear. Development in sportswear lining fabrics has been progressing to perform high functions and to achi…
Raman spectroscopic speciation studies were conducted of aqueous solutions of La(ClO 4 ) 3 , La 2 (SO 4 ) 3 , and Na 2 SO 4 in water and heavy water, in the terahertz frequency region (40–1400 cm −1 ) and down to low concentrations (0.000263 mol L −1 ).
Corrosion inhibitors have been used to preserve the integrity of metal components of plant facilities under severe corrosive conditions that would lead to failure or reduction of the operating cycle of essential units. These include risers, columns, wells, pipelines, pressure vessels and distillation towers structures…
The free vibration analysis of generally laminated composite beam (LCB) with a delamination is presented using the finite element method (FEM). The effect of material couplings (bending-tension, bending-twist, and tension-twist couplings) with the effects of shear deformation, rotary inertia, and Poisson’s effect are…
The editors of Actuators would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2014:[...]
A metamaterial model that possesses simultaneously negative effective mass density and negative effective Young’s modulus is proposed in this study. Dispersion curves and dynamic responses of the model are investigated. In the double negative frequency region, it is demonstrated that the phase velocity is negative. In…
The relative intensity and phase of the third harmonic, /3/1 and Φ3−Φ1, deduced from Fourier Transform analysis of Large Amplitude Oscillatory Shear (LAOS ) experiments were used to differentiate the effect of irradiation and the effect of multiwalled carbon nanotubes (MWCNT) concentration in PP/MWCNT nanocomposites.…
Viscosity reduction of aqueous kaolin suspensions by conventional additives (deflocculation) is studied, using standard viscosity measurements. Apparent viscosity at 100 s-1, and flow behavior index n give complex information about changes of viscosity and flow character of deflocculated suspensions. Several widely us…
In this work, organobentonite/sodium polyacrylate (OBT/PAAS) humidity-control composite material was prepared using intercalation polymerization. The humidity-control performance of this composite material was tested by desiccator method. Its morphology and structure were investigated by X-ray diffraction and environm…
In the present work, an attempt has been made to investigate the drilling behavior of the titanium dioxide (TiO2)- and zinc sulfide (ZnS)-filled glass fabric-reinforced polymer (GFRP) matrix composites. The volume fractions in the matrix were chosen as 1%, 2%, and 3%. Drilling has been conducted on CNC Vertical Machin…
Carbon fiber-reinforced plastic (CFRP) composites are materials that are difficult to machine due to the anisotropic and heterogeneous properties of the material and poor surface quality, which can be seen during the machining process. The machining of these materials causes delamination and surface roughness owing to…
Suspensions of SiO2 microspheres in glycerine exhibit drastic shear-thickening behavior under steady shear and dynamic oscillatory shear test. The rheological behavior of suspensions agrees with the modified Cox-Merz rules as the dynamic oscillatory rheological behavior at low frequency could be reasonably interpreted…
This study presents the application of soft computing techniques, namely, as multiple regressions (MRs), neural networks (NNs), genetic programming (GP), and adaptive neuro-fuzzy inference system (ANFIS) for modeling of compressive strength of carbon fiber-reinforced polymer (CFRP) confined concrete cylinders. The pro…
In this paper, a prototype of a LARM leg mechanism is proposed by using a tripod manipulator and its operation performance is investigated through lab experimental tests. In particular, an experimental layout is presented for investigating operational performance. A prescribed motion with an isosceles trapezoid trajec…
The creep and recovery of asphalt modified with Elvaloy 4170 and polyphosphoric acid were studied at low temperatures, by inductive phenomenological methods. Two models of the tensile compliance function were investigated. Both models were derived from the linear viscoelastic retardation spectra and successfully used…
In this paper, we review the recent advances which have taken place in the understanding and applications of acoustic/elastic metamaterials. Metamaterials are artificially created composite materials which exhibit unusual properties that are not found in nature. We begin with presenting arguments from discrete systems…