Materials Literature
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We briefly review our findings on the relationship between the fragility of glass formation and cooperative motion, focusing on a simple glass-forming polymer melt.We identify string-like cooperative motions with the hypothetical 'cooperatively rearranging regions' of the Adam-Gibbs (AG) description, thereby providing…
Powder of La 0.6 Sr 0.4 CoO 3-? (LSCO) was synthesized by a combined citrate-EDTA synthesis route. The high purity of LSCO cathode powder as confirmed by X-ray diffraction (XRD) analysis was prepared to become cathode slurries using different electrode binders namely polyvinyl alcohol (PVA), polyvinyl butyral-co-vinyl…
This paper outlines the method and the results of the experimental investigation of interlaminar shear strength of carbon/glass angle ply hybrid glass composites, with the aim of determin ing the influence that the structure, a reinforcement type and a sort of resin exert upon the interlaminar strength. Hybrid composi…
A systematic step by step comparison of amorphous/crystalline heterojunction (a-Si:H/c-Si) solar cells textured in isopropanol(IPA)-free KOH solution and in IPA-containing KOH solution was performed in order to investigate the potential and limitations of IPA-free solar cell processing for reaching high efficiencies.…
This paper presents the results of analyses determining the effect of meadow grass compaction conditions on process parameters and agglomerate strength. The experiments were performed with the use of the ZWICK Z020/TN25 universal strength tester and a closed compression die assembly with three diameters of chamber: 12…
We present the first crystalline Si-based tandem solar cell device consisting of a monolithically interconnected c-Si wafer bottom and a Si nanocrystal (NC) top solar cell. The major part of this work has been realised within a European consortium in the frame of the FP7 project NASCEnT. Within this project we have be…
Simple and sensitive method for the quantification of tolterodine tartrate in capsule formulation by RP-HPLC has been developed. Isocratic separation of tolterodine tartrate was carried out using a reversed-phase column C 18 (150 × 4.6 mm, 5μm) with mobile phase consisting of methanol and phosphate buffer (pH adjusted…
Impact on composites is a very complex phenomenon and function of many parameters influencing its analysis. This research developed an armour protecting body of Glass Fibre Reinforced Polyester (GFRP) co mposite laminates of varying thicknesses of 8mm, 12mm, 16mm, 20mm, 24mm, and 28mm. the impact response of these com…
Syzygium cumini is well known for its medicinal properties. This plant has shown potential for gold nanoparticles (GNP) synthesis. In the present study, we have varied physiochemical factors (metal ion, leaf extract ratio and incubation temperature) to see the influence on GNP size. GNPs of 13 to 70 nm size were synth…
Amyloid fibrils are attractive targets for applications in biotechnology. These thin, nanoscale protein fibers are highly ordered structures that self-assemble from their component proteins or peptides. This chapter describes the use of several biophysical techniques to monitor the formation of amyloid fibrils includi…
Microencapsulation is a process in which tiny particles or a coating to give small capsules with many useful properties surrounds droplets. There are many methods to impart various end use applications like antimicrobial property, flame proof and many more functional properties to the various substrates like polyester…
ANFO explosives have been widely used for blasting operations in mining and civil engineering. From a scientific point of view, ANFO is interesting due to its non-ideal detonation. There are numerous factors that affect the velocity of detonation of ANFO explosives. This paper presents measured velocities of detonatio…
The intensity of unfavourable phenomena occurring in the nanofiltration process of fermentation solutions, and the possibility of cleaning the membranes after this process were studied. The experiment was carried out using a tubular module equipped with the AFC-30 membrane. The filtration process was carried out at a…
GSCP
This paper investigates the structures of composite overwrapped pressure vessels (COPV) intended for use as storage tanks for compressed gas fuels in automobiles and other vehicles. The objective of this work was to establish the use of mosaic patterns arising during winding in the helical layers. In the authors' opin…
The paper presents results of FRA measurements obtained from deformational tests in laboratory on the 800 kVA transformer. Tested unit had various failure modes simulated, such as radial and axial deformations and short-circuits. It allowed to identify characteristic frequencies affected by various failures, which wil…
Electron and Ion Microscopy and Microanalysis: Principles and Applications, Marcel Dekker, Inc., New York, 793 pp.
A material with comparable tensile properties to conventional TiAl intermetallic compounds was fabricated by compression shearing at room temperature. Pure Ti and pure Al powders were mixed by ball milling. Mixing time was varied between 10 and 540 min. The tensile properties of the formed samples were measured. The r…
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Morphology changes of C–Pd films prepared in physical vapor deposition (PVD) process and next annealed in a temperature of 650 °C during different time were studied. These studies were performed with electron microscopy methods (scanning SEM and transmission TEM). It was found that not annealed films are flat and they…