Materials Literature
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Abstract Functional polyketones were chemically cross-linked for the softening of hard water, i.e. for the removal of the divalent cations Ca2+and Mg2+. Elemental analysis, FT-IR spectroscopy, solubility- and swelling-experiments were used to demonstrate the occurrence of the cross-link reaction. Testing the different…
Plant extracts as corrosion inhibitors have been expansively explored and are found as an alternative to synthetic organic compounds. Crude hexane extract of Alpinia galanga rhizome and its major active constituent namely, 1'-acetochavicol acetate were investigated for their corrosion inhibition properties on mild ste…
Solar-blind narrow-band silicon ultraviolet photodetectors based on metal-oxide-semiconductor (MOS) capacitors with silver gate are presented. A very high selectivity was obtained using silver as the band-pass filter. An optimal relationship between the layer and silver film thicknesses was found to obtain a spectral…
A systematical investigation was carried out into the effects of the hole-transporting layer treatment of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) on the performance of planar hybrid n-Si/PEDOT:PSS solar cells. Triton X-100 and ethylene glycol (EG) were chosen to improve the conductivity and…
Study of high temperature steam oxidation kinetics during the high temperature oxidation was carried out on the sponge base E110 cladding tubes material in the temperature range 600-1300 C. The oxidation kinetics derived from the weight gain measurements showed a parabolic rate law for temperatures 1100 C and higher o…
A low-cost, time-effective and easy-to-use novel analytical technique incorporating microwave spectroscopy of unmodified gold nanoparticles for the detection of selected vasodilator drugs.
AIM: To investigate immunologic reactions after implantation of stainless steel (SS) alloy and titanium (Ti) alloy in a rat model. Macrophage and cytokine responses have been reported after in vivo and in vitro application of different biomaterials. MATERIAL AND METHODS: Wistar albino rats were used. After an explorat…
Poly--hydroxybutyrate acid (PHB) is thermoplastic biopolymers, synthesized by some bacterial genera under stress conditions. The degradation of PHB was detected in Petri dish by formation of a clear zone around the fungal colonies due to production of depolymerase enzyme which has interesting role in PHB degradation p…
Graphene which is an allotrope of carbon has become focus of attention due to its unique 2-D structure, and exceptional physio-chemical properties. It has been established to have a wide range of application in the nanomedicine and biomedical field. Recently graphene and the other members of the family including graph…
Stone Mastic Asphalt (SMA) mixtures rely on stone-to-stone contacts among particles to resist applied forces, and permanent deformation.Aggregates in SMA should resist degradation (fracture and abrasion) under high stresses at the contact points.Current practices for asphalt mix design and acceptance testing rely on v…
Ce:YAG nanophosphor was synthesized by refluxer assisted co-precipitation method using AHC as precipitant. XRD result reveals the cubic phase formation without existence of other intermediate and defect phases. By HR-SEM observation, the prepared Ce:YAG exhibit non-agglomerative and spheroidal morphology with the part…
Four novel composite systems having composition “80 wt% BaFe12O19 (BaM)-20 wt% Na0.5Bi0.5TiO3 (NBT)” were prepared by solid state reaction technique with considering the variation of microstructure for both the phases. The formation of desired composite systems was confirmed by X-ray diffraction study. From SEM and FE…
Positive-up-negative-down (PUND) polarization measurement was employed to indirectly estimate the electrocaloric (EC) effect in ferroelectric films. By subtracting the conductive component from the observed charge profile, the polarization values at various electric fields and temperatures were precisely determined. T…
In this work we synthesized gadolinium oxide (Gd2O3) nanoparticles by a simple physico-chemical route. X-ray diffractogram (XRD) reveals cubic phase of Gd2O3 with preferred crystallographic orientation along (222) plane. The average crystallite size is found to be ∼ 3.5 nm. High resolution transmission electron micros…
We have carried out a series of multi-million atoms non-equilibrium molecular dynamics simulations to investigate the effect of crystal orientation over the shock induced plasticity and phase transformation in single crystal copper. Crystallographic orientation of [100], [110] and [111] has been studied for various in…
Air-sintered SrCoO3 is strongly reduced at 1020°C in PO2 = 1.6 × 10−9 MPa and then post-annealed at various temperatures in air. The conductive and structural characteristics are examined, comparing them with those of air-sintered. Although annealing in a reducing atmosphere breaks down SrCoO3 to several compounds, Sr…
From last decade, iron oxide nanoparticles (IONPs) have been extensively used in a wide variety of biological and medical applications such as contrast agent in magnetic resonance imaging (MRI), in magnetic hyperthermia to cure cancer, drug delivery, cell labeling and so on. However, studies related to their cytotoxic…
Over the last several years there has been a mutually beneficial ongoing technical interchange between the U.K and the U.S. related to various aspects of space radioisotope power systems (RPS). While this interchange has been primarily focused on materials based activities, it has also included some aspects related to…
The item can only be dispensed within artificial tasks that, although useful in the lab, do not reflect the real world. There, the attended item is the goal of search. Hulleman & Olivers' (H&O's) model can ignore the item only by reducing search to the question of whether a patch of 0s (distractors) contains a 1 (targ…
Aluminum-doped zinc oxide (AZO) thin films were successfully prepared on glass substrates at room temperature by DC magnetron sputtering. The sputtering time varied from 5 minute to 30 minute, while the power was kept at 230W for all depositions. The structural and optical properties of AZO films were investigated by…