Materials Literature
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Two-phase nanocomposite layers based on porous silicon and nonstoichiometric tin oxide were fabricated by various methods. The structure, as well as elemental and phase composition, of the obtained nanocomposites were studied using transmission and scanning electron microscopy, Raman spectroscopy, Auger electron spect…
A packing of spherical caps on the surface of a sphere (that is, a spherical code) is called rigid or jammed if it is isolated within the space of packings. In other words, aside from applying a global isometry, the packing cannot be deformed. In this paper, we systematically study the rigidity of spherical codes, par…
In this paper the performance of three switching signal generation techniques for three phase four wire shunt active power filters are compared for balanced and unbalanced load conditions. The techniques which are considered for comparative study are (i) Traditional Hysteresis Current Control Method, (ii) Three Dimens…
This paper presents a new topology for high torque high performance permanent magnetic gear. The proposed topology is extensively studied thought series of simulations with ANSYS Maxwell, an electromagnetic solver based in finite element method. Parametric analysis provides a first geometry to be optimized, searching…
Tin sulphide is considered to be a potential candidate for the development of low cost polycrystalline thin film solar cells. The advantages of using sulfurization process to grow SnS films were demonstrated. Polycrystalline p-type SnS films were obtained by a simple dry process at 300 °C for 90 min. The sulfurization…
Three-dimensional (3D) atomic images around the Tl atoms in single-crystal TlInSe2 thermoelectric material in the incommensurate phase were reconstructed by Tl L III X-ray fluorescence holography measured at room temperature. In the obtained 3D image, the In atoms are clearly visible at the proper positions in the nor…
This paper presents an investigation of the effects of a topographical modification, namely, nanolines, on the hydrophobicity and micro-/nanotribological properties of poly(methyl methacrylate) surfaces. The polymeric line patterns were fabricated on the poly(methyl methacrylate) films by using the capillary force lit…
A finite-element method for calculating the illumination-dependence of absorption in three-dimensional nanostructures is presented based on the radio frequency module of the Comsol Multiphysics software package (Comsol AB). This method is capable of numerically determining the optical response and near-field distribut…
Tin sulphide is considered to be a potential candidate for the development of low cost polycrystalline thin film solar cells. The advantages of using sulfurization process to grow SnS films were demonstrated. Polycrystalline p-type SnS films were obtained by a simple dry process at 300 °C for 90 min. The sulfurization…
We developed Optical pH regulation using functional nanotool impregnated with photo-responsive chemical for selective cell injection of nanotool. The nanotool was modified by fluorescent dye for intracellular measurement. The nanotool was included in the fusogenic liposome. Membrane fusion of the liposome to the cell…
This work presents an investigation of interfacial interaction between an industrial grade epoxy molding compound and a native silicon dioxide layer usually found at chip surfaces. The free surfaces of both solid materials were subjected to an experimental contact angle analysis of three different liquids (water, diio…
This paper presents modeling, simulation and experimental measurements of copper-based TSV for 60-GHz applications. We have considered different via dimensions for modeling and simulations and performed simulations to validate electrical performance of the TSV with varying data rates in addition to providing eye diagr…
Wound care practice continuously demonstrates that healing cannot be adequately controlled if a patient's experience of pain is not managed effectively. Current pain management guidelines do not account for the holistic treatment of pain emanating from a wound-an environment of uncontrolled or rogue inflammation, neur…
Three tomato ( Solanum lycopersicum ) cultivars [Walter LA3465 (heat-tolerant), Edkawi LA 2711 (unknown heat tolerance, salt-tolerant), and LA1310 (cherry tomato)] were compared for changes in leaf proteomes after heat treatment. Seedlings with four fully expanded leaves were subjected to heat treatment of 39/25 °C at…
Rectifier substations in DC electric transportation systems are an important source of harmonic distortion. One of the best compensation actions is to use active power filter due to its adaptation capacity to different load conditions. This paper presents a computational model of DC traction supply systems that allows…
The flow field of the molten bath and the decarburisation rate in a 150 t electrical arc furnace (EAF) are discussed based on a three-phase numerical simulation, while the furnace profile of the EAF and the installation location of oxygen lance are fixed. As shown in the results, with increasing charge mass of the mol…
Elimination of rotor position sensors mechanically coupled with the rotor shaft is attractive to variable speed drives primarily due to increased system reliability and cost reduction. In this regard, search for a simple and robust position sensorless control has been intensified in past few years specifically for low…
A new critical angle refractometer (CAR) for high accuracy refractive index measurement of liquid has been developed. The instrument improves the accuracy by two reflections in an elongated parallelogram prism, and acquires the angular reflectivity without any angle scanning parts through introduction of a point sourc…
Cu2ZnSnS4 (CZTS) thin films were prepared by a sol–gel sulfurization method. Sulfurization was carried out in H2S of various concentrations and the properties of the films were investigated. The CZTS thin films sulfurized at 500 °C for 1 h in 0.5 and 3% H2S atmospheres had large grains compared with the film sulfurize…
Art. 094101, 8 S.