Materials Literature
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The present paper envisages the multi-response optimization of certain factors like elastane linear density, fabric thread density and weave float on some mechanical, (i.e. stretch %, recovery %) and comfort (i.e. air permeability) properties of bi-stretch woven fabrics, under L18 orthogonal array in Taguchi design. F…
During irradiation UO2nuclear fuel experiences the development of a non-uniform distribution of porosity which contributes to establish varying mechanical properties along the radius of the pellet. Radial variations of both porosity and elastic properties in high burnup UO2pellet can be investigated via high frequency…
This paper demonstrates a green approach for the synthesis of gold and silver nanoparticles using polysaccharides extracted f macroseaweed as reducing agents.The formation of Au Electron Microscopy (TEM).TEM analysis of both polysaccharides polysaccharides (alginate or carrageenan) not only influence the morphology an…
The industrial use of converter fed high-voltage machines is steadily growing. The driver behind the growth is the possibility to control the output power from the machine to be adjusted to the actual needed power of the load. This leads to a more cost- and energy efficient use of the assets. For some applications the…
Epoxy nanocomposites with different percentages of nano clay filler are prepared using a shear mixer technique. Corona inception voltage (CIV) due to water droplets on the epoxy nanocomposite is high under negative direct voltage compared with positive polarity voltage. It was found that an increase in droplet volume…
Abstract The new mineral species meerschautite, ideally (Ag,Cu)5.5Pb42.4(Sb,As)45.1S112O0.8, has been discovered in the baryte + pyrite ± (Pb-Zn-Ag) deposit of the Pollone mine, near Valdicastello Carducci, Apuan Alps, Tuscany, Italy. It occurs as black prismatic crystals, striated along [100], up to 2 mm long and 0.5…
Partial discharge (PD) analysis is widely adopted for assessing the condition of the insulation systems within high voltage (HV) transformers. Different PD sources have different effects on the insulation condition of HV transformers. In a typical field environment, multiple PD sources may occur in HV transformer simu…
ABSTRACT Multiblock copolymers named PCL‐PIBMD consisting of crystallizable poly(ε‐caprolactone) segments and crystallizable poly[oligo(3S‐iso‐butylmorpholine‐2,5‐dione)] segments coupled by trimethyl hexamethylene diisocyanate provide a versatile molecular architecture for achieving shape‐memory effects (SMEs) in pol…
A new synthesis technique that produces homogeneous oligopeptides that are essential for the formation of self-assembled structures is described. In contrast with endopeptidases, exopeptidases, which catalyze the cleavage of terminal peptide bonds, can potentially prevent unexpected hydrolysis during aminolysis. This…
We consider the Labyrinth model, which is a two-dimensional quasicrystal model. We show that the spectrum of this model, which is known to be a product of two Cantor sets, is an interval for small values of the coupling constant. We also consider the density of states measure of the Labyrinth model and show that it is…
Surely one of the most miraculous aspects of Nature is its self-organizing ability of creating solid substances with corresponding well-defined macroscopic properties (namely material objects of the world around us) using vast numbers of submicroscopic building blocks (namely atoms and molecules). Underlying this is t…
A monolithic 3D image sensor is demonstrated by sequentially fabricating large-area (>2cm×2cm) monolayer (+IC connected by high density interconnect. The photocurrent of the monolayer MoS2phototransistor shows a linear response to the incident laser power density and exhibits high responsivity (>20A/W). The bottom 3D…
Polyethylene exhibits many key characteristics including low dielectric loss, high breakdown strength and good processability. Most modern extruded high voltage cables employ cross-linked polyethylene (XLPE) as the insulation material. The main advantage of XLPE is its excellent thermo-mechanical properties; it is rel…
Partial discharge (PD) detection is commonly used in the failure diagnostics of the gas insulated switchgear (GIS) with the basin-type insulator. We recognized that the polarization plays an important role in the PD detection. In this paper, we present both theoretical and experimental investigations on the polarizati…
Abstract This paper presents the set of procedures developed in Radiation Protection Measurements Laboratory at National Centre for Nuclear Research for evaluation of shielding properties of high performance concrete. The purpose of such procedure is to characterize the material behaviour against gamma and neutron rad…
Absorbance-Modulation-Optical Lithography (AMOL) has been previously demonstrated to be able to confine light to deep sub-wavelength dimensions and thereby, enable patterning of features beyond the diffraction limit. In AMOL, a thin photochromic layer that converts between two states via light exposure is placed on to…
Fabrication and characterization of a novel high density polyethylene/wood fiber/modified ammonium polyphosphate (HDPE/WF/MAPP) composite have been carried out. The flammability of the composite is characterized by the limiting oxygen index (LOI), vertical burning test (UL‐94), and cone calorimetry. The flame‐retardan…
Thin ELO devices with light management allow for increased quantum dot (QD) absorption without the need for excessive strain management. A growth study was designed to evaluate challenges regarding inverted growth of ELO QDSCs. Two upright GaAs cell designs were investigated: a standard device and a “thick emitter” de…
Abstract Tubular halloysite has many applications as a nanomaterial. Spheroidal halloysite (SPH) is the other most common form of halloysite. Its mode of formation has had different explanations, including association with allophane, or more generally, following weathering of volcanic glass. Some SPHs have formed from…
Heterostructures based on transition metal dichalcogenides (TMDs) are attractive owing to their atomically thin nature and lack of dangling bonds, thereby enabling devices with abrupt junctions. Of particular interest are tunneling devices that manifest a negative differential resistance (NDR), which can pave the path…