Materials Literature
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The effects of shot peening (SP) on the fatigue strength of partially stabilised zirconia were studied. Smooth specimens and specimens containing a surface pre-crack with depths in the range 35–110 μm were subjected to SP. The cyclic fatigue tests were performed using a three-point bending setup. SP introduced compres…
A theoretical study on the application of periodically tapered metal-semiconductor layers on the top surface of a GaAs-based photo-conductive photodetector is performed and its influence on the absorbance and responsivity improvement is investigated. To do so, first, the proposed pyramid and cone-shaped hyperbolic met…
The atomistic study shows strong size effects in thermally induced martensitic phase transformation evolution kinetics of equiatomic NiTi shape memory alloys (SMAs). It is shown that size effects are closely related to the presence of free surfaces; thus, NiTi thin films and nanopillars are studied. Quasi-static molec…
Abstract Cooperative upconversion luminescence (CUCL) occurs in spectral regions in which single ions do not have energy levels. However, all results reported so far are concentrated on luminescence properties from Yb 3+ ions‐doped various hosts. Here, we report the observation of nonlinear negative transmittance (NNT…
The effect of Pressure-assisted thermal processing (PATP) on mechanical and barrier properties of polyethylene terephthalate (PET)/polyethylene (PE) for sausage packaging was studied. The samples were subjected to 150, 300 and 450 MPa for 10 minutes at temperatures of 25, 40 and 50C, separately. The delamination and b…
The ZSM-5, g-Al2O3, SiO2 and MgO supported Pd-catalysts were prepared for the phenol hydrogenation to cyclohexanone in liquid-phase. The natures of these catalysts were characterized by XRD, N2 adsorption-desorption analysis, H2-TPR, CO2-TPD and NH3-TPD. The catalytic performance of the supported Pd-catalyst for pheno…
The paper reports the development of ZnO-MgAl layered double hydroxides as an adsorbent-photo catalyst to remove the dye pollutants from aqueous solution and the experiments of a photocatalytic study were designed and modeled by response surface methodology (RSM) and artificial neural network (ANN). The co-precipitati…
Abstract
SiO 2 –Ag–SiO 2 , a sandwiched core/shell structure with a layer of Ag nanoparticles (∼4 nm) encapsulated between a shallow SiO 2 surface layer and a SiO 2 submicrosphere substrate (∼200 nm), has been synthesized from and SiO 2 spheres by a facile one-pot hydrothermal method. The composite is proposed to result from t…
It is of interest to develop two-component systems for added flexibility in the design of supramolecular polymers, nanofibers, or organogels. Bisureas are known to self-assemble by hydrogen bonding into long supramolecular objects. We show here that mixing aromatic bisureas with slightly different structures can yield…
Abstract. Amini F, Bayat L, Hosseinkhani S. 2016. Influence of preharvest nano calcium applications on postharvest of sweet pepper (Capsicum annum). Nusantara Bioscience 8: 215-220. The effect of preharvest nano calcium treatment on the quality, physicochemical parameters and antioxidative enzyme activities of sweet p…
Corrosion of metallic surfaces is prevalent in the environment and is of great concern in many areas, including the military, transport, aviation, building and food industries, amongst others. Polyester and coatings containing both polyester and silica nanoparticles (SiO2NPs) have been widely used to protect steel sub…
Organic compounds have constantly proved to be a proficient candidate for nonlinear optical (NLO) applications. In this respect an organic amino acid compound i.e. l-Prolinium Trichloroacetate single crystal has been synthesized and grown through slow evaporation solution growth technique. The lattice parameters obtai…
We present the relaxation dynamics of glass-forming glycerol mixed with 1.1 nm sized polyhedral oligomeric silsesquioxane (POSS) molecules using dielectric spectroscopy (DS) and two different neutron scattering (NS) techniques. Both, the reorientational dynamics as measured by DS and the density fluctuations detected…
ABSTRACT Here, the confirmation of an oriented nanohybrid shish‐kebab (NHSK) crystalline structure in a series of composites of poly(ethylene terephthalate) (PET) and multiwall carbon nanotubes (MWCNTs) is reported. The combined use of small‐ and wide‐angle X‐ray scattering (SAXS/WAXS) and thermal analysis has been us…
The arsenic (As) to selenium (Se) ratio in AsxSe1-x glasses ranging from x = 0.2 to 0.5 was varied in order to examine the effect of chemical and topological ordering on the glass' thermal transport behavior. The fundamental thermal properties of glass transition temperature (Tg), thermal conductivity (k), and heat ca…
A pilot-scale simultaneous removal of NOW and SOx, as a nonthermal plasma and chemical hybrid process (PCHP), is carried out on combustion exhaust gas in a glass manufacturing system. The PCHP is implemented in an actual semi-dry-type exhaust gas treatment system. The exhaust gas (12 700 m3N/h) is produced by the comb…
Heat dissipation from three-dimensional (3D) chip stacks can cause large thermal gradients due to the accumulation of dissipated heat and thermal interfaces from each integrated die. To reduce the overall thermal resistance and thereby the thermal gradients, this publication will provide an overview of several studies…
Diamond is attractive for various applications due to its unique mechanical and optical properties. In particular, single crystal diamond needles with high aspect ratios and sharp apexes of nanometer size are demanded for different types of optical sensors including optically sensing tip probes for scanning microscopy…
The monomer surface mobility is the single most important parameter that decides the nucleation density and morphology of islands during thin-film growth. During template-assisted surface growth in particular, low surface mobilities can prevent monomers from reaching target sites and this results in a partial to compl…