Materials Literature
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The Structure functions based evaluation of the thermal transient measurements is now a broadly accepted way for the characterization of the time dependent behavior of the heat flow path. The usual way of generating structure functions considers one main heat flow path. By using a large mathematical tool set it genera…
The objective of this paper is to investigate the predictability of the warp breakage rate from a sizing yarn quality index using a feed-forward back-propagation network in an artificial neural network system. In order to achieve the objective, a series of trials is conducted. An eight-quality index (size add-on, abra…
Water pollution is often thought to cause accelerated corrosion of steels, particularly in harbors where levels of oxygenation of the waters may be low and where there may be industrial and shipping wastes. Harbors and coastal regions may also be prone to nutrient pollution from sewage or agricultural run-off. Offshor…
<abstract language="eng">Dynamic mechanical analysis (DMA) is widely used in materials characterization. In this work, we briefly introduce the main concepts related to this technique such as, linear and non-linear viscoelasticity, relaxation time, response of material when it is submitted to a sinusoidal or other per…
A mechanistic model was developed and applied to predict the localised corrosion of a number of alloys in a plant process stream. In order to validate the model, multi-electrode array sensors (MAS) made from type 316L stainless steel and from two Fe–Ni–Cr–Mo–W alloys, AL6XN and alloy C–276, were installed in a side lo…
Corrosion inhibition of aluminum alloy (AA)2024-T3 (UNS A92024) in sodium chloride (NaCl) solutions after pretreatments in solutions containing Ce(III), Co(II), or Mo(VI) ions are reported. The extent of Cu replating on AA2024-T3 surfaces and the reduction of the oxygen reduction reaction were utilized as key indicato…
Part II of this series reports on a theoretical model and simulation results of coupled heat and moisture transfer with phase change and mobile condensates in clothing assemblies consisting of porous fibrous battings sandwiched by inner and outer layers of a thin covering fabric. The model considers moisture movement…
Abstract The reaction of the new, bis(bidentate), potentially dinucleating ligand 4‐isobutyl‐3,5‐di(2‐pyridyl)‐4 H ‐1,2,4‐triazole (ibdpt) with M(ClO 4 ) 2 · 6H 2 O (M = Co II , Ni II or Cu II ) in a1:1 molar ratio in MeCN affords the dinuclear complexes [Co II 2 (ibdpt) 2 (MeCN) 2 (H 2 O) 2 ](ClO 4 ) 4 ( 1 ), [Ni II…
Abstract A comprehensive investigation aimed at elucidating thermodynamic and mechanical behavior of heterogeneous systems, featuring an association of solid hydrophobic matrices (micro‐ or mesoporous) and water, has been undertaken. Scanning transitiometry techniques were applied for measurements of mechanical work a…
Abstract Two unprecedented open‐framework polar compounds (C 6 NO 2 H 5 ) 2 [Ln(H 2 O) 5 (CrMo 6 H 6 O 24 )] · 0.5H 2 O [Ln = Ce ( 1 ), La ( 2 ); C 6 NO 2 H 5 = pyridine‐3‐carboxylic acid], constructed from Anderson‐type polyoxo anions and rare‐earth cations, have been synthesized for the first time and characterized…
The effect on the field emission characteristics of the aspect ratio of an isolated emitter, together with the position of the anode electrode are reported. We show by computational simulation that the field enhancement factor β is only dependant on the emitter height h, radius r, when the anode to cathode separation…
A model is developed to explain a hysteresis observed experimentally in nanotube field-effect transistors. The model explains the hysteresis through trapping of electrons in an oxide layer. The Fowler-Nordheim tunneling mechanism is held responsible for the electron injection. The influence of different parameters suc…
This paper presents a Jiles-Atherton hysteresis model identification method based on a partnership of heuristic techniques and fuzzy logic (softcomputing). Two different softcomputing approaches are proposed and analyzed: a partnership between genetic algorithms (GAs) and fuzzy logic (FL) and one between GAs and simul…
Abstract Upon reaction of N ‐substituted diethanolamines H 2 L 2–4 ( 4 , 6 , 7 ) with cesium carbonate and bis(tetraethylammonium) tetrachloromanganate(II) in acetonitrile in the presence of air, the metal‐centered mixed‐valent manganese wheels [NEt 4 ]{Mn II ⊂[Mn II 3 Mn III 3 Cl 6 (L 2–4 ) 6 ]} ( 8 – 10 ) were gener…
Abstract Two oligomeric malonate esteramides and an oligomeric malonate ester were synthesized with the intention to plasticize poly(lactic acid), PLA. The synthesis was performed by reacting diethyl bishydroxymethyl malonate (DBM) with adipoyl dichloride and one of two diamines, that is, triethylene glycol diamine (T…
Ag-Pt nanoparticles with a confirmed core-shell structure could only be formed by the successive reduction method using Ag nanoparticles as the seeds. The core-shell structure could be conveniently inferred from the transferability of the particles from water to toluene. Independent measurements by UV-vis spectroscopy…
The aim of this study was to investigate the impact of sonication as a disinfection method for determining the effectiveness of ultrasound waves on the inactivation of E. coli. Ultrasound waves at a frequency of 42 kHz were used to expose aqueous suspension of E. coli. Ultrasound waves display a strong influence on th…
The crystallization behavior of PBA on highly oriented PE substrate from solution as well as melt was studied by optical microscopy, transmission electron microscopy, and X-ray diffraction. The results show that the PE exhibits very strong nucleation ability toward PBA as reflected by the occurrence of heteroepitaxy a…
The chemical reaction between fluoro-nanodiamond (F-ND) powder, solubilized in o-dichlorobenzene, and a glass surface, functionalized with the silane coupling agent, 3-aminopropyltriethoxysilane (APTES), was found to proceed under heating at 130 degrees C for 24-40 h and to result in covalent bonding of F-ND particles…
Efficiently luminescing colloidal CdTe quantum dots (QDs) were used for the preparation of monodispersed and mixed size QD solids. Luminescence spectra and decay times of the QD emission were measured as a function of temperature to study energy transfer (ET) processes in the QD solids. In the luminescence decay curve…