Başlık için Fizik Bölümü listeleme
Toplam kayıt 1178, listelenen: 916-935
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Solid-phase microextraction and ion chromatographic analysis of anions based on polypyrrole electrode
(John Wiley & Sons Inc, 2008)The polypyrrole (PPy) film was used for the selective extraction of trace levels of chloride, nitrite, and nitrate ions by solid phase micro-extraction (SPME). PPy film was electrochemically prepared from aqueous solutions ... -
Solubility of an acid dye in supercritical carbon dioxide by ion-pairing with dodecyltrimethylammonium bromide
(Elsevier Science BV, 2006)In this study, solubility of Acid Red 57 (AR57), which is an anionic dye, in supercritical CO2 was investigated using an ion-pairing with dodecyltrimethylammonium (DTMA) bromide. The measurements of AR57 and AR57-DTMA in ... -
Solvatochromic behavior and electronic structure of some symmetric 2-aminophenol Schiff base derivatives
(Elsevier Science BV, 2014)The solvatochromic behavior and electronic structure of four symmetric 2-aininophenol Schiff base derivatives were investigated by using electronic absorption spectra in fourteen different spectroscopic grade solvents. The ... -
Solvatochromic effect studies on the absorption spectra of 4-((2-ethylphenyl)diazenyl)benzene-1,3-diol and 2-((2-ethylphenyl)diazenyl)benzene-1,3,5-triol molecules
(Pergamon-Elsevier Science LTD, 2009)The electronic absorption spectra of 4-((2-ethylphenyl)diazenyl)benzene-1,3-diol and 2((2-ethylphenyl)diazenyl)benzene-1,3,5-triol molecules in the nine different solvent variable electronic characters have been recorded. ... -
Solvatochromism and electronic structure of some symmetric Schiff base derivatives
(Elsevier Science BV, 2015)In this present work, we have investigated electronic absorption spectra of three symmetric Schiff bases in fourteen spectroscopic grade solvents which have different polarities. The electronic transitions have been evaluated ... -
Some DC and AC Properties of Copper-Loaded Polypropylene Films
(1987)Thin film Cu-polypropylene-Cu sandwich structures are prepared by thermal vacuum deposition of these materials onto glass substrates. Polypropylene in some of the samples is also loaded with Cu of varying amount. ... -
Some physical properties of Cd1-xSnxS films used as window layer in heterojunction solar cells
(Pergamon-Elsevier Science LTD, 2009)CdS has been proved to be an ideal material for use as the window layer for heterojunction solar cells especially with n-CdS/p-CdTe. CdS, Cd0.9Sn0.1S and Cd0.8Sn0.2S films were deposited onto glass substrates at 300 degrees ... -
Some structural properties of CdO : F films produced by ultrasonic spray pyrolysis method
(Elsevier Science Sa, 2007)The fluorine doped cadmium oxide (CdO:F) samples have been deposited at 250 degrees C by ultrasonic spray pyrolysis method. Cadmiumacetatdihydrat and ammonium fluoride have been taken as a source of cadmium and fluorine-dopant ... -
Space-time algebra for the generalization of gravitational field equations
(Indian Acad Sciences, 2013)The Maxwell-Proca-like field equations of gravitolectromagnetism are formulated using space-time algebra (STA). The gravitational wave equation with massive gravitons and gravitomagnetic monopoles has been derived in terms ... -
Spacetime algebra for the reformulation of fluid field equations
(World Scientific Publ Co Pte LTD, 2017)In the light of the analogy between electromagnetism and fluid dynamics, the Maxwell-type equations of compressible fluids are reformulated on the basis of spacetime algebra. In this paper, it is proved that this algebra ... -
Specific and non-specific interaction effect on the solvatochromism of some symmetric (2-hydroxybenzilydeamino)phenoxy Schiff base derivatives
(Elsevier Science BV, 2016)In this present work, solvatochromic behavior, specific and non-specific solute-solvent interactions and electronic structure of (2-hydroxybenzilydeamino)phenoxy Schiff base derivatives have been investigated by using ... -
A spectroelectrochemical study on single-oscillator model and optical constants of sulfonated polyaniline film
(Pergamon-Elsevier Science LTD, 2008)The optical properties of sulfonated polyaniline (SPAN) thin film prepared by electrochemical method have been investigated. Polychromic behavior of SPAN thin film (transparent yellow-green-dark blue) was observed when the ... -
Spectroscopic (FT-IR, Laser-Raman and NMR) and conformational analysis on novel pyrazole beta-keto ester compound
(Elsevier Science BV, 2018)Our goal in this study is to submit a comprehensive theoretical study of novel compound. Therefore, we perused and analyzed the experimental (real form) and theoretical (gas form) vibrational frequencies for the most stable ... -
Spectroscopic and thermal studies of bentonites from Unye, Turkey
(Elsevier Science BV, 2010)Three bentonites from Turkey were investigated by X-ray diffraction (XRD), X-ray fluorescence (XRF), differential thermal analysis (DTA), thermogravimetric analysis (TG), Fourier transform infrared (FT-IR), magic angle ... -
Spectroscopic Determination of Acid Dissociation Constants of N-Substituted-6-acylbenzothiazolone Derivatives
(American Chemical Society, 2011)The acid dissociation constants of twelve novel drug precursor N-substituted-6-acylbenzothiazolone derivatives were determined by using the UV-vis spectroscopic technique. The protonation and deprotonation behaviors of the ... -
Spectroscopic determination of acid dissociation constants of some imidazole derivatives
(American Chemical Society, 2001)The acid dissociation constants, pK(a), of eight biologically active imidazole derivatives were determined using a spectroscopic technique. Using the obtained acid dissociation constants, attempts were made to elucidate ... -
Spectroscopic Determination of Acid Dissociation Constants of Some Novel Drug Precursor 6-Acylbenzothiazolon Derivatives
(American Chemical Society, 2010)The acid dissociation constants, as pK(a) values, of eight drug precursor 6-acylbenzothiazolon derivatives were determined using UV-vis spectroscopic technique. The protonation and deprotonation behaviors of the investigated ... -
Spectroscopic determination of acid dissociation constants of some pyridyl Shiff bases
(American Chemical Society, 2006)The acid dissociation constants (pK(a)) of eight biologically active pyridyl Shiff bases were determined using a UV-vis spectroscopic technique at 25 +/- 0.1 degrees C. The first acidity constants (pK(a1)) of the ... -
Spectroscopic determination of acid dissociation constants of some pyridyl-substituted 2-aminothiazole derivatives
(American Chemical Society, 2006)The acid dissociation constants, K-a, of nine biologically active 2-amino-4-(x-pyridyl)- thiazole, 2-methylimino-3-methyl- 4-(x-pyridyl)- 2,3-dihydrothiazole, and 2-methylamino-4-(x-pyridyl)- 2,3-dihydrothiazole were ... -
Spectroscopic determination of acidity constants of some monoazo resorcinol derivatives
(American Chemical Society, 2008)The acidity constants, as pK(a) values, of six monoazo resorcinol derivatives were determined by the UV-visible spectroscopic technique at 25 degrees C (+/- 0.1 degrees C). The protonation and deprotonation behaviors of ...