Materials Literature
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Abstract Reaction of 2,5‐bis(cyanomethyl)pyrrole with L ‐valinol in presence of zinc trifluoromethansulfonate and subsequent work‐up with aqueous NaCl gave the corresponding zinc complex 2 , in which the double bonds of the pyrrole ring isomerize to give rise to a conjugated chromophore. Its molecular structure displa…
Two valence states of tin atoms (namely, the doubly charged Sn 2+ and quadruply charged Sn 4+ states) in the structure of the (As 2 Se 3 ) 0.4 (SnSe) 0.3 (GeSe) 0.3 glasses are identified by 119 Sn Mössbauer spectroscopy. It is demonstrated that the concentration ratio of the doubly charged Sn 2+ and quadruply charged…
In this work we present the electrical and optical characterization of polymer light-emitting diodes (PLEDs) using indium-tin oxide (ITO), polyaniline (PAni), poly(p-phenylene vinylene) (PPV) +dodecylbenzenesulfonate (DBS) and aluminum (Al). To minimize the conversion temperature and reduce the structural defects of P…
pH titration shows that 1 : 1 : 1 mixed-ligand complexes are formed in the systems palladium(II)-Cyt-Glu-H 2 O (loggB = 19.73) and palladium(II)-Cyt-Lys-H 2 O (logβ = 16.20). Complexes Pd(C 5 H 5 N 5 )(C 5 H 8 NO 4 )Cl, Pd(C 5 H 5 N 5 )(C 6 H 13 N 2 O 2 )Cl, Pd(C 4 H 5 N 3 O)(C 6 H 13 N 2 O 2 )Cl, and Pd(C 4 H 5 N 3 O…
Single-wall carbon nanotubes (SWCNTs) were laterally grown on SiO2/Si substrates by means of an "all-laser" growth process. Our "all-laser" process stands out by its exclusive use of the same pulsed UV laser, first, to deposit the CoNi nanocatalyst and, second, to grow SWCNTs through the laser ablation of a pure graph…
B56 Introduction: Daucus carota, Apiaceae, commonly used in Lebanese folklore medicine for the treatment of leukemia. The anti-cancer aqueous extract of DC was examined by evaluating its effect on the induction of differentiation and inhibition of proliferation of the human promyelocytic leukemia HL-60 cells. Material…
The results of research presented at the 15th Pacific Basin Nuclear Conference (15PBNC) directly challenge the assumption, made for the purposes of radiation protection, that risks observed at acute doses of 500–1000 mGy can be extrapolated reliably down to zero dose and to low dose rates (the LNT model). The research…
BACKGROUND: In recent years scientists have been trying both to increase the efficiency of solar cells, whilst at the same time reducing dimensions and costs. Increases in efficiency have been brought about by implanting carbon nanotubes onto the surface of solar cells in order to reduce the reflection of sunrays, as…
Nonreciprocal transmission of a linearly polarized electromagnetic wave at a ferromagnetic resonance (FMR) frequency has been observed in a metastructure comprising a transversely magnetized ferrite plate and a grating of resonant elements. The nonreciprocity of wave transmission is observed for the metastructure arra…
<abstract language="eng">The effectiveness of microemulsions (ME) of saponified coconut oil (OCS-ME) and diphenylcarbazide (DC-ME) on a carbon steel corrosion inhibition process was evaluated using an electrochemical method of polarization resistance. The ME was prepared with OCS, butanol, kerosene and saline solution…
The conditions of operation of metal-cutting tools in various applications and of various standard dimensions are analyzed. Long-standing statistical observations at a number of industrial facilities have revealed the dominating mechanisms of wear and the main causes of failure of the tools have been established in re…
Laboratory incubation studies were conducted with south Indian tea soils to investigate the influence of soil pH, incubation period, and nitrification inhibitor on urea hydrolysis. The soils used in this experiment were sampled from six different regions of south India. The physicochemical properties, urea hydrolysis…
In this work, a porous silicon layer is fabricated as the gas diffusion layer (GDL) of a micro-direct methanol fuel cell (µDMFC) using micro-electro-mechanical-systems (MEMS) technology. Platinum is deposited on surface of the porous silicon layer to improve the electrical conductivity of the µDMFC. Physical vapor dep…
Layer transfer of BaTiO3 thin films onto silicon-based substrates has been investigated. Hydrogen and helium ions were co-implanted to facilitate ion-implantation-induced layer transfer of films from BaTiO3 single crystals. From thermodynamic equilibrium calculations, we suggest that the dominant species during cavity…
The cathodoluminescence and photoluminescence spectra of cubic boron nitride doped with beryllium under high-pressure and high-temperature conditions are investigated. It is revealed that, upon doping of cubic boron nitride with beryllium, the cathodoluminescence spectra exhibit a broad stable band. An increase in the…
Reviewed are works concerning the mechanisms of collagen (type I) fibril packing and the influence of macromolecular structure and physicochemical parameters of the medium on the process.
The refractive indices and the coefficients of optical absorption by free charge carriers and local vibrations in porous silicon (por-Si) films, comprising nanometer-sized silicon residues (nanocrystals) separated by nanometer-sized pores (nanopores) formed in the course of electrochemical etching of the initial singl…
We prepared a homologous series of novel liquid crystal trimers, 1,4‐bis(4‐{ω‐[4‐(5‐dodecylpyrimidine‐2‐yl)phenyloxy]alkyloxyphenyl}carbonyloxy)benzene, I‐(m, n), and investigated their physical properties using optical microscopy, differential scanning calorimetry and X‐ray diffraction. All the compounds exhibited en…
Preparation of (Pb,La)(Zr,Ti)O3 Epitaxial Thin Films by Modified Sol–Gel Method and Their Crystallinity Evaluation, Echizen, Masahiro, Nishida, Takashi, Nozaka, Takashi, Takeda, Hiroaki, Uchiyama, Kiyoshi, Shiosaki, Tadashi
Two kinds of radiation-induced structural changes were observed in U-Mo/Al dispersion fuel: radiation-induced recrystallization of U-Mo fuel particles and radiation-induced amorphization of interaction products. During irradiation, U-Mo fuel showed refined microstructures of submicron-size grains due to dynamic recrys…