Materials Literature
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The Reimer Diatom Herbarium (ILH) at Iowa Lakeside Laboratory (ILL), a field station of Iowa's state universities, contains 3,280 permanent diatom slides of collections made from prairie potholes, alkaline fens, acid bogs, eutrophic lakes, saline lakes, Pleistocene paleolakes, and Miocene fossil deposits near ILL. The…
High-speed framing photography in conjunction with circularly polarised light has been employed to monitor qualitatively the state of residual stress in Prince Rupert’s drops of soda-lime glass undergoing disintegration by a self-sustained fracture wave in the glass drops. It is revealed that the fracture wave through…
Abstract This article describes the applications of induction heat treatment of metals, including normalizing, annealing, hardening, and tempering and stress relieving. It discusses the simulation techniques of the electromagnetic and thermal processes that occur during induction heat treating. The article explains th…
Abstract The Eastern Canadian Diatom Index (IDEC) was developed to evaluate the ecological integrity of streams along a pollution gradient, as a function of the dissimilarity between current diatom communities and suitable reference communities. Distinguishing natural variations in community structure from those induc…
The objective of this study was to investigate the effects of rice husk and acrylic impact modifiers on the mechanical properties of unplasticised poly(vinyl chloride) (PVC-U) composites. The composites were prepared using a two-roll mill at temperature 165 °C before being hot pressed at 185 °C. The incorporation of r…
BACKGROUND: Human serum has the potential to become the most informative source of novel biomarkers, but its study is very difficult due to the incredible complexity of its molecular composition. We describe a novel tool based on biodegradable nanoporous nanoparticles (NPNPs) that allows the harvesting of low-molecula…
Abstract In this study, a newly developed Boron alloyed armor steel is presented and its mechanical properties as well as its ballistic applications are given. Further, a description of ballistic terms is included to understand the development of armor steel for the use in civil and defence applications. The main subj…
The advances achieved in the field of the synthesis of conducting polymer films and the results of experimental investigations of the mechanism of charge carrier transport in heavily doped conducting polymer films on the metal side of the metal-insulator transition have been considered. The samples studied belong to t…
The authors demonstrate directed assembly of high quality solution processed single-walled carbon nanotube (SWNT) devices via ac dielectrophoresis using commercially available SWNT solutions. By controlling the shape of the electrodes, concentration of the solution, and assembly time, the authors are able to control t…
In this work a monitoring and diagnostic technique for ZnO surge arresters is proposed. This technique is based on a special kind of Artificial Neural Network (ANN) known as Self-Organizing Maps (SOM), which is a network, trained using unsupervised learning. The proposed technique performs the thermal profile analysis…
The adsorption of a single polymer to a flat surface in shear is investigated using Brownian hydrodynamics simulations and scaling arguments. Competing effects are disentangled: in the absence of hydrodynamic interactions, shear drag flattens the chain and thus enhances adsorption. Hydrodynamic lift on the other hand…
Diamond received tremendous interest for analytical sciences due to its intrinsic properties. However, the analytical perception of chemical environment requires surface functionalization that brings selectivity to the detection event. Thereby, many works focused on diamond modification using chemical or biochemical e…
We report on the crystallinity, N incorporation efficiency, optical properties, and electrical properties of N and Te codoped ZnO films grown by plasma-assisted molecular-beam epitaxy. Te improves the surface morphology and roughness of ZnO films in terms of both streak reflection high energy electron diffraction patt…
The superconducting pairing of electrons in doped graphene owing to in-plane and out-of-plane phonons is considered. It is shown that the structure of the order parameter in the valley space substantially affects conditions of the pairing. Electron-hole pairing in a graphene bilayer in the strong coupling regime is al…
We demonstrate the ultraviolet (UV) light-induced, reversible wettability behavior for tubular SiC nanostructure film. The as-synthesized tubular SiC nanostructure film shows the superhydrophilic nature with the water contact angle 152.4° and low sliding angle. Moreover, the surface transition between superhydrophobic…
We have proposed and fabricated a maximum power point tracking (MPPT) circuit for thermoelectric generator (TEG) without digital controller unit. The experimental and simulation results from the proposed MPPT circuit employing the boost cascaded-with-buck converter dealt with rapid variation of temperature and abrupt…
Dielectric properties of electrospun polyvinylpyrrolidone (PVP) and polyacrylonitrile (PAN) nanocomposite fibers were determined as a function of temperature and concentration in order to explore the possibility of using them as dielectric materials in different industrial applications. Multiwall carbon nanotubes and…
The dielectric properties of Fe3O4 magnetic nanoparticles with an insulating coating layer of SiO2 were investigated. At high temperatures, the changes in the dielectric constant and loss induced by the magnetic field are opposite in sign and strongly frequency-dependent, which originates from extrinsic magnetodielect…
The behaviour of titanium(iv) oxide, TO as a corrosion inhibitor of aluminium and mild steel in H2SO4 solutions has been investigated using the “Absorbance difference” technique at 303K and 313K. The percentage inhibition efficiencies (%IE) increased with concentration of TO and decrease with increasing temperature in…
The objective of this study was to find a trigger to make clear a mechanism of the ultra low friction by evaluating the friction property of DLC-DLC combination under lubrication with the simple fluid. The Pin-on-disc reciprocating and rotating sliding tests were conducted to evaluate the friction property. The super…