Materials Literature
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In recent years, the development of crystalline porous materials based on metal chalcoge‐ nides attracts scientific attention for their adjustable porous structures and potential applica‐ tions in technology. In contrast to oxygen, for which only the diand tri-nuclear homopolyatomic anions, i. e. O2, O2and O3, are kno…
This chapter contains sections titled: Introduction Theory of Reflection Loss Experimental Results and Discussion Conclusions Acknowledgements
By adjusting laser power and nozzle speed in laser cladding technology, crack-free titanium layer with even thickness and titanium mass percentage over 99%, was obtained on the substrate of low carbon steel without any intermediate layer when heat input was between 12-20 J/mm. The temperature field and the mechanical…
This chapter contains sections titled: Introduction Experimental Results and Discussions Conclusions
To consider the practicality and economic feasibility of developing reactive powder concrete (RPC), the strength and microstructure properties of RPC using ternary pozzolanic materials (silica fume, blast furnace slag, fly ash) were investigated in this study. Through the investigation, it was found that the compressi…
This study presents an ab initio investigation of the interaction of Al 5 H 12 with the alloying transition elements (TM) in the TMAl 5 H 12 ( TM = Ti , V , Fe , Co and Ni ). Hydrogen atoms are found to prefer the tetrahedral sites in the fcc Al bulk system with a binding energy that is more energetically favored than…
A simple and effective method is introduced to synthesize a series of polystyrene-b-poly(oligo(ethylene oxide) monomethyl ether methacrylate)-b-polystyrene (PSt-b-POEOMA-b-PSt) triblock copolymers. The structures of PSt-b-POEOMA-b-PSt copolymers were characterized by Fourier-transform infrared spectroscopy (FTIR) and…
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…