Materials Literature
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While nanoparticles occur naturally in the environment and have been intentionally used for centuries, the production and use of engineered nanoparticles has seen a recent spike, which makes environmental release almost certain. Therefore, recent efforts to characterize the toxicity of engineered nanoparticles have fo…
Polymer bulk heterojunction (BHJ) solar cells consisting of the photoactive layer containing the interpenetrating network of electron donating polymer and electron accepting PC71BM has been proved to be quite effective in converting the solar energy into electrical energy. After many efforts, the power conversion effi…
This paper will discuss and analyze the effect of chemical reactions number on the design and performance of the industrial secondary reformer reactor. The secondary reformer reactor is a large-scale unit in the Ammonia production plants. The secondary reformer reactor operation is adjusted to achieve the required sto…
Dye-sensitized solar cells (DSSCs) were intensively studied in the last two decays as alternatives to conventional siliconbased solar cells due to its low cost and relatively high power conversion efficiency. 1 TiO 2 is used as a semiconductor layer in DSSCs and the structure influences on the power conversion efficie…
A new copper(II) complex [Cu(CH3COO)(HL)H2O]·H2O, (where HL stands for 4-Nitro-2-[N-(2-{dimethylamino}ethyl-N′-methyl)aminomethyl]phenol), was synthesized and characterized by XRD, EPR, UV-Vis, and IR techniques. It crystallized in monoclinic system and P21/c space group. The Cu(II) ion is coordinated by a tridendate…
Growing crystals increases, day by day due to their remarkable applications. In the present work we are interested in investigating the effect of the dopant in the crystal structure and general characterization of pure Sulphamic Acid (SA) single crystal. Hence, neodymium doped Sulphamic Acid (Nd:SA) single crystal was…
This chapter contains sections titled: Introduction Experimental Procedure Results and Discussions Conclusions
A new polymerizable fluorescent sensor based on the photoinduced electron transfer PET for the selective determination of fluoride ions in DMF solutions has been synthesized. The sensing system was prepared by incorporating 4-Amino-1,8-naphthalimide derivatives containing thiourea side chain at the amino moiety AFTN a…
+ECAP 460 480 , ECAP , 100 MPa. , ECAP AE 100-200 nm,
To simulate the discharge zone of hydrothermal systems in the laboratory, we developed a flow-type hydrothermal apparatus that can reproduce water-rock reactions at elevated temperatures and pressures under flow-through conditions and also the mixing of hydrothermal fluids with seawater. Using this apparatus, basaltic…
In this paper, a novel model is proposed to predict stress behavior in the fibrous polymer composites under an applied tensile axial loading. Tangential stress is obtained by simulating between polymeric matrix flow (polyester) and fluid flow. In the other words, creep behavior of the petrochemical material or polymer…
The temperature dependence of the photoinduced dynamics by the irradiation of a femtosecond laser pulse was studied for the cleaved surface of BaV10O15, which shows V trimerization with orbital ordering at \(T_{\text{c}}=123\) K. For \(T>T_{\text{c}}\), the photoinduced reflectivity change exhibits oscillation with ti…
A subwavelength metal grating is designed to generate axially symmetric polarized beams (ASPBs) in the visible region, and a simulation based on the rigid coupled wave algorithm (RCWA) is performed to optimize the grating. The ring-shaped grating is manufactured by electron beam lithography (EBL), nanometer-imprint an…
Biosilicification in diatoms1 and sponges2 potentially pro-mises physiological, mild reaction conditions for controlling silica structures at the nanometer scale. Since Sumper et al. had isolated catalytic peptides (i.e., silaffins) from diatoms,3 a number of polymers bearing tertiary amine or ammonium groups have bee…
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Al(OH) 3 thin films were assembled on anionic polysulfonamide (PSA) fabrics by electrostatic self-assembly method to improve the mechanical, heat insulation, and flame retardant properties of PSA fabrics. PSA fabric surface was modified with a chemical reaction to build-up anionic charge known as anionization. Then a…
A pair of covalently linked molecular dyads is described in which two disparate boron dipyrromethene dyes are separated by a tolane-like spacer. Efficient electronic energy transfer (EET) occurs across the dyad; the mechanism involves important contributions from both Förster-type coulombic interactions and Dexter-typ…
The effect of an arc energy absorber installed in a wind turbine switch unit has been investigated by computational fluid dynamics simulations based on results of an internal arc test. The absorber is assembled from several layers of perforated plates. The compact switch unit consists of an SF6insulated switch tank, a…
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Primary and secondary wear in soft-ground tunneling using various types of shields has a major impact on machine operation, utilization, and tunneling costs. Wear occurs due to interaction between abrasive soils and cutters, as well as other components of the machine which come into contact with the muck. However, the…