Materials Literature
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This paper presents a methodology to construct novel label-free sensing platforms using carefully engineered materials (metamaterials) that have dimensions considerably smaller than the operating wavelength, λ. This paper demonstrates that highly selective sensing platforms can be achieved by using metamaterials consi…
Layers of nanoporous aluminum oxide (alumina) have been obtained using the electrochemical etching technique by varying technological regimes. The surface morphology and cleavages of obtained experimental samples are studied using scanning electron microscopy (SEM). It is established that with the growth of the anodiz…
A novel approach based on the finite element method is proposed to calculate accurately the winding losses and short circuit forces caused by harmonic currents in a furnace transformer. The technique derives the appropriate partial differential equation required to determine the harmonic currents. The technique is val…
A methodology has been developed for characterising the mechanical behaviour of concrete, based on the damaged plasticity model, enriched with a user subroutine (V)USDFLD in order to capture better the ductility of the material under moderate confining pressures. The model has been applied in the context of the intern…
In this paper we present the results of a study over the aging and the estimating lifetime of a new insulation system for a DC motor. In order to achieve the lifetime experiments, a group of 7 motorettes (made under IEC 60216-1) have been subjected to accelerated thermal aging at T = 260 ° C (for 1000 hours), followed…
Eu3+ doped and Eu3+, Yb3+ co-doped Gd3Ga5O12 phosphors have been developed by facile solid state reaction method which can be easily scaled-up in large quantity. The synthesis has been optimized to get a single phase material at 1300 °C. The phase and crystal parameters have been analyzed by using X-ray diffraction me…
We discuss our work on simple aliphatic glass-forming monoalcohols at low temperatures, including experiments on specific heat, thermal conductivity, Brillouin scattering and x-ray diffraction. The family of simple monoalcohols is an interesting model system for exploring molecular glass-forming liquids, the low-tempe…
The mechanism of generating terahertz radiation by zigzag-type nanotubes is considered using the two-point unit phase cell. The nanotubes are oriented along the radiation field. The radiation gain factor is estimated and the mechanism of excitation of a nonlinear medium based on a nanotube array is discussed.
Diagnosis facilitates the discovery of an impending disease. A complete and accurate treatment of cancer depends heavily on its early medical diagnosis. Cancer, one of the most fatal diseases world-wide, consistently affects a larger number of patients each year. Magnetism, a physical property arising from the motion…
The construction and characterization of a measuring module for high voltage time-domain reflectometry with picosecond resolution is presented. The device provides registration of low-distortion reflections from the load at conditions of irregular shape and pronounced instability of an incident probing pulse with ampl…
This paper deals with a new AC electric motor magnetic circuit structure made of shifted non-segmented grain oriented steel laminations. The aim of the paper is to understand with a finite element approach the local distribution of the magnetic flux density inside shifted laminations as well as in the air-gaps between…
One of the critical parts for the insulation design of dry‐type transformers is the correct inclusion of the insulating supports between the high‐voltage winding and the metallic clamps at the top and bottom ends. Breakdown along the surfaces of such supports has been observed once the transformers are in operation an…
Authors believe that two aspects of this manuscript will make it interesting to general readers of the journal “Materials & Design”. First, in this manuscript we report for the first time that a new fluorine-contained thermoplastic vulcanizate (TPV) was successfully prepared through dynamic vulcanization. Our results…
The synthesis of eugenol derivatives of octachlorocyclotetraphosphazene and mixtures of oligomer chlorocyclophosphazenes [NPCl 2 ] 3–8 was performed. Not yet described octakis(4-allyl-2-methoxyphenoxy)cyclotetraphosphazene was isolated in the crystalline form and identified via 31 P and 1 H NMR spectroscopy, laser mas…
The heat capacity of bundles of closed-cap single-walled carbon nanotubes with one-dimensional chains of nitrogen molecules adsorbed in the grooves has been first experimentally studied at temperatures from 2 to 40 K using an adiabatic calorimeter. The contribution of nitrogen CN2 to the total heat capacity has been s…
Ovarian cancer is the ninth most common cancer amongst women and ranked as fifth in terms of the cause of cancer related mortality accounting for more deaths than any other cancer of the female reproductive system. Gemcitabine is the most common chemotherapeutic agent used in the treatment of ovarian cancer despite of…
Nejayote is a nixtamalization waste by-product, and for this reason, in this study, filtration cakes as well as filtrate nejayote were evaluated to select the filter medium and also to establish the operation conditions. The different media used as filters at constant pressure filtrations were polyester–cotton canvas,…
Bulk La0.67Ca0.33MnO3 (LCMO) and NdGaO3 (NGO) have the same Pbnm symmetry but different orthorhombic lattice distortions, yielding an anisotropic strain state in the LCMO epitaxial film grown on the NGO(001) substrate. The films are optimally doped in a ferromagnetic-metal ground state, after being ex-situ annealed in…
This paper presents a new numerical method to compute the macroscopic electromagnetic properties of the soft magnetic composite (SMC). In present method, SMC is assumed to be composed of homogeneous magnetic bricks with periodicity. The macroscopic electromagnetic properties of SMC are obtained using the finite elemen…
The spinel ferrite system CoZn z Ge z Cr x-z Fe 2-x-z O 4 with z= x 2; x = 0.60, 0.65 and 0.70 was studied by Mà T (ZFC-FC) DC magnetization at low and high fields in the temperature range 5K to 300K, MàH measurements with high field up to 55 kOe at 15K temperature and low field AC susceptibility in temperature rang…