Güncel Gönderiler: Fizik Bölümü
Toplam kayıt 1178, listelenen: 1081-1100
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P-Type Nanostructure Pbs Thin Films Prepared By the Silar Method
(Natl Inst R&D Materials Physics, 2015)In this paper, we report on the structural, optical and electrical properties of nanocrystalline lead sulfide (PbS) thin films as a p-type semiconductor deposited on glass substrates at three different pH of the cationic ... -
Infrared spectra of Hoffmann-T(d)-type benzene clathrates
(Versita, 2008)Six new title compounds in the form of Cd(cyclobutylamine)(2)M'(CN)(4) center dot 2G (M' = Cd or Hg; G = benzene, 1,2-dichlorobenzene, or 1,3-dichlorobenzene) have been prepared in powder form. Their spectral data were ... -
New Cu-Al Based Quaternary and Quinary High Temperature Shape Memory Alloy Composition Systems
(Amer Inst Physics, 2018)The Cu-rich HTSMAs (high temperature shape memory alloys) with new compositions of a quaternary Cu24.07Al- 1.85Ti-1.40Co (at%) and a quinary Cu-24.08Al-2.23Fe-1.34Co-0.97Ti (at%) were fabricated by arc melting and analysed ... -
Fabrication and Optical Characterization of CdSe Thin Films Grown by Chemical Bath Deposition
(Polish Acad Sciences Inst Physics, 2015)Cadmium selenide thin films with different pH values (pH = 10, 11, 12 and 13) are produced on glass substrates at 50 degrees C for 3 h by chemical bath deposition technique. The structural, morphological and optical ... -
Natural Evolution of SS Cyg Based on an X-Ray Data Analysis at Very Short Periods
(Astronomical Soc Pacific, 2011)We have carried out a Chandra data analysis of the prototype dwarf nova SS Cyg during quiescence and outburst. The SS Cyg data number 646 and 648 were obtained by the Chandra X-Ray Observatory on August 24, 2000 in quiescence ... -
Peptidomimetics via modifications of amino acids and peptide bonds
(Royal Soc Chemistry, 2014)Peptidomimetics represent an important field in chemistry, pharmacology and material science as they circumvent the limitations of traditional peptides used in therapy. Self-structural organizations such as turns, helices, ... -
Processing of layered porous mullite ceramics
(Springer, 2018)In the current study, layered porous mullite ceramics with different pore sizes were produced via polymeric sponge method by using CC31 commercial-grade kaolin as starting raw material. Polyurethane sponges with three ... -
Synthesis, characterization and antibacterial activity of silver-doped TiO2 nanotubes
(Pergamon-Elsevier Science LTD, 2018)One-dimensional titanium dioxide (TiO2) nanotubes (TNTs) doped with silver (Ag) (% 5) were synthesized via two-step hydrothermal method. These nanotubes were characterized by X-ray diffraction (XRD), Fourier transform ... -
Thermally stimulated current analysis of Zn1-xCdxO alloy films
(Elsevier Science Sa, 2011)We have studied the structural and electrical properties of Zn1-xCdxO alloy films deposited by ultrasonic spray pyrolysis technique. XRD measurement indicated that pure ZnO and CdO samples had single phases with hexagonal ... -
Thermally stimulated currents in CdS film produced by ultrasonic spray pyrolysis method
(IOP Publishing LTD, 2008)Polycrystalline CdS films have been deposited by ultrasonic spray pyrolysis method. The electrical properties of the sample have been studied by means of an analysis based on the thermally stimulated current (TSC) spectrum ... -
Benzotriazole-Mediated Synthesis of Aza-peptides: En Route to an Aza-Leuenkephalin Analogue
(American Chemical Society, 2013)Novel N-(N-Pg-azadipeptidoyl)benzotriazoles 20a-e couple efficiently with alpha-amino acids 21a-e, dipeptides 22a-c, aminoxyacetic acid 23a, depsidipeptide 23b, and alpha-hydroxy-beta-phenylpropionic acid 27 yielding, ... -
Microwave-Assisted Synthesis of 2,2 '-Azopyridine-Labeled Amines, Amino Acids, and Peptides
(Georg Thieme Verlag Kg, 2016)A microwave-assisted procedure for labeling amines, amino acids, and peptides with 2,2'-azopyridines (2,2'-AzPy) is described using the corresponding 2,2'-azopyridine-diacylbenzotriazoles. The efficiency of the procedure ... -
Design, Synthesis, and Biological Activity of Novel 5-((Arylfuran/1H-pyrrol-2-yl)methylene)-2-thioxo-3-(3-(trifluoromethyl)phenyl)thiazolidin-4-ones as HIV-1 Fusion Inhibitors Targeting gp41
(American Chemical Society, 2011)On the basis of our earlier molecular docking analysis, we designed and synthesized 5-((arylfuran/1H-pyrrol-2-yl)methylene)-2-thioxo-3-(3-(trifluoromethyl)phenyl)thiazolidin-4-ones (12a-o) as HIV-1 entry inhibitors. Compounds ... -
Efficient Preparation of Aminoxyacyl Amides, Aminoxy Hybrid Peptides, and alpha-Aminoxy Peptides
(American Chemical Society, 2009)N-(Pg-alpha-aminoxy acids) 1a-g are converted to N-(Pg-alpha-aminoxyacyl)benzotriazoles 2a-g, Which react under mild conditions with amines, alpha-amino acids/alpha-dipeptides, and alpha-aminoxy acids to give aminoxyacyl ... -
Design, synthesis, and biological activity of a novel series of 2,5-disubstituted furans/pyrroles as HIV-1 fusion inhibitors targeting gp41
(Pergamon-Elsevier Science LTD, 2011)Based on molecular docking analysis of earlier results, we designed a series of 2,5-disubstituted furans/pyrroles (5a-h) as HIV-1 entry inhibitors. Compounds were synthesized by Suzuki-Miyaura cross coupling, followed by ... -
Benzotriazole-Mediated Syntheses of Depsipeptides and Oligoesters
(American Chemical Society, 2011)Reactions of O-Pg(alpha-hydroxyacyl)benzotriazoles with (a) unprotected alpha-hydroxycarboxylic acids, (b) amino acids, and (c) amines afforded, respectively, chirally pure (a) oligoesters, (b) depsidipeptides, and (c) ... -
Donor-related third-order optical nonlinearites in GaAs/AlGaAs quantum wells at the THz region
(IOP Publishing LTD, 2011)GaAs/AlGaAs quantum wells doped with donor atoms are investigated for nonlinear optical applications in the THz range. The electronic properties of the quantum wells are obtained numerically by applying an iterative shooting ... -
Synthesis and antimicrobial investigation of some 5H-pyridazino[4,5-b]indoles
(Scientific Technical Research Council Turkey-Tubitak, 2013)Synthesis and in vitro antimicrobial activities are reported for a series of 1,3,5-substituted 4-oxo-3,4-dihydro-5H-pyridazino[4,5-b]indole derivatives. Corresponding pyridazino[4,5-b]indoles were prepared from ethyl ... -
Photophysics of novel coumarin-labeled depsipeptides in solution: sensing interactions with SDS micelle via TICT model
(Springer Wien, 2013)N-Acylbenzotriazoles enable the synthesis (69-92 % yield) of blue to green fluorescent coumarin-labeled depsidipeptides 8a-f (quantum yields 0.004-0.97) and depsitripeptides 12a-d (quantum yields 0.02-0.96). Detailed ... -
On the donor states in double InxGa1-xN/InyGa1-yN/GaN staggered quantum wells
(IOP Publishing LTD, 2013)We have calculated the binding energies of the donor states, 1s and 2p +/-, with respect to the lowest sub-band energy in a double quantum well composed of wurtzite InGaN staggered quantum wells with GaN barriers. All the ...
