Materials Literature
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Myriophyllum spicatum distribution in Al-Burgga marsh, Hor Al-Hammar was described in relation to some of the physical-chemical properties for its habitat (water depth, light penetration, water temperature, water salinity, pH, dissolved oxygen, Ca+2, Mg+2, reactive NO2=, reactive NO3-1, and reactive PO4-3) during 2011…
The present study conducted to study epipelic algae in the Tigris River within Baghdad city for one year from September 2011 to August 2012 due to the importance role of benthic algae in lotic ecosystems. Five sites have been chosen along the river. A total of 154 species of epipelic algae was recorded belongs to 45 g…
Theoretical M -shell X-ray production cross sections have been calculated within the ECPSSR model. The semi-empirical cross sections are then deduced by fitting the available experimental data normalized to their corresponding theoretical values for elements with 72 ≤ Z ≤ 90 by proton in the energy range 0.1–4.0 MeV.…
The effect of changing geotechnical parameters on the impulse generated from a shallow buried charge has been the topic of a large amount of scientific interest in recent years. Many previous researchers have utilised a free flying mass experimental approach to capture the impulse imparted from such an event. This met…
Abstract The underlying structural and physicochemical interpretation of the recently defined information indices (denominated as GT-STAF indices) is examined, with the aim of gaining greater insight on the codified chemical information. It is found that these indices are related with molecular symmetry in the context…
Composites of teak wood dust particles of 150 μm, 212 μm, and 300 μm sizes with 10 % weight fractions were developed by a hand moulding technique.A wooden mould was prepared for casting the composite pins of 8 mm diameters and 50 mm length.Sliding wear tests were conducted on a pin on disc friction and wear monitor.It…
Crystalline silicon, widely used in the electronic industry, is also a very popular material for calibrating Raman spectrometry instruments. Silicon chips cut or cleaved from commercially available silicon wafers are low-cost monolithic monocrystalline materials that give a strong Raman line at 521 cm(-1) with almost…
Abstract Three new 9-arylanthracene-based π-conjugated derivatives with different side substituent (methyl, methoxy, and hexyloxy) were synthesized using Heck coupling/Horner–Emmons reaction in good yields (72–78%) and their photophysical properties investigated. The dependence of the photophysical properties on the s…
A methodology for generation of realistic three-dimensional software models of carbon fiber-reinforced polymer (CFRP) structures, dedicated for use in simulation studies of advanced X-ray imaging techniques for non-destructive testing (NDT), has been developed, implemented, and evaluated. Two CFRP models are presented…
The effects of molding conditions on the flexural strength of textile carbon fiber reinforced polycarbonate laminates were assessed. Choosing the temperature and pressure conditions appropriately during hot-press molding using carbon fiber textile layers and polycarbonate films can produce void-free, high interfacial…
Presented research offers solutions for properties alternation of 3 D LTCC inductors by variation of materials implemented for their fabrication. Investigated geometry is solenoid‐shape micro‐inductor. Two types of dielectric cores are applied to achieve increase of quality factor for over 40% at GH z range. Five diff…
Abstract A low-cost and high performance Ag-coated Cu flakes filled epoxy was prepared as electrically conductive adhesives (ECAs) for light emitting diode (LED) packaging. As-prepared ECAs consisted of bisphenol-F-epoxy resin, micro-sized Ag-coated Cu flakes and other additives. The ECAs with content of 70 wt % Ag-co…
The performance of metal oxides such as titanium dioxide (TiO2), in the conversion of solar energy into chemical energy, is determined by semiconducting properties. The conversion process is closely related to the light-induced reactivity between oxide semiconductors and water, which may lead to partial water oxidatio…
We present an in situ study of the interaction of osteopontin (OPN) peptide-bearing solutions with brushite (DCPD), CaHPO 4 ·2H 2 O, (010) surfaces using atomic force microscopy. We show that in situ observations of the [1̅00] Cc step kinetics are consistent with classic Cabrera-Vermilyea model of step pinning combine…
The morphologies and corona compositions in aggregates of mixtures of PS-b-PAA and PS-b-P4VP diblock copolymers are influenced by controllable assembly parameters such as water content, block copolymer molar ratios, and solvent effects as well as the hydrophilic block lengths and block length ratios. All these factors…
Direct ethanol fuel cells (DEFCs) have been widely studied because of their potential as a high-energy density and low-toxicity power source of the future. Suitable catalysts for the anode reaction, however, are necessary to fully utilize the advantages of DEFCs. In this paper, we fabricated nickel (Ni)–palladium (Pd)…
Raman spectroscopy has been of interest as a detection method for liquid chromatographic separations for a significant period of time, due to the structural information it can provide, allowing the identification and distinction of coeluting analytes. Combined with the rapidly advancing field of enhanced Raman techniq…
This work investigates adsorptive denitrogenation (ADN) of fuels over metal organic frameworks using a combined experimental/computational approach. MIL-101(Cr) shows high ADN capacities at low concentrations, ascribing to the sites on MIL-101(Cr) offering the strongest adsorption. Adsorption capacity of MIL-101(Cr) i…
A material model for unidirectional fibre-reinforced composites coupling damage to the friction acting on newly created microcracks is developed. While existing material models accounting for progressive damage assume that microcracks remain traction free under compressive load, the present model accounts for contact…
The C3 photosynthesis model of Farquhar, von Caemmerer & Berry (1980) is widely used to predict CO2 exchange and inform ecophysiological research. Users typically estimate the model's parameters by fitting it to response curves – a process fraught with potential errors and ambiguities (Long & Bernacchi, 2003; Dubois e…