Başlık için Fizik Bölümü listeleme
Toplam kayıt 1178, listelenen: 480-499
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I-V characterization of a quantum well infrared photodetector with stepped and graded barriers
(Academic Press LTD- Elsevier Science LTD, 2012)I-V characterization of an n-type quantum well infrared photodetector which consists of stepped and graded barriers has been clone under dark at temperatures between 20-300 K. Different current transport mechanisms and ... -
I-V characterization of a staircase quantum well infrared photodetector
(Wiley-V C H Verlag GMBH, 2011)In this work, a quantum well infrared photodetector structure which consists of three different well thicknesses with three different barrier compositions producing a staircase-like conduction band profile with the reputation ... -
Identification by RP-HPLC-DAD, FTIR, TGA and FESEM-EDAX of natural pigments prepared from Datisca cannabina L
(Elsevier Sci LTD, 2012)In this study, natural pigments from the hemp (Datisca cannabina L) dye plant were prepared by using KAI(SO4)(2)center dot 12H(2)O (alum), FeSO4 center dot 7H(2)O and SnCl2 center dot 2H(2)O mordants. A reversed-phase high ... -
IFVD-based large intermixing selectivity window process for high power laser diodes
(Spie-Int Soc Optical Engineering, 2018)Catastrophic optical mirror damage (COMD) is a key issue in semiconductor lasers and it is initiated by facet heating because of optical absorption. To reduce optical absorption, the most promising method is to form ... -
Immobilization of 2,2 '-dipyridyl onto bentonite and its adsorption behavior of copper(II) ions
(Elsevier Science BV, 2009)In this study, the immobilization of 2,2'-dipyridyl onto bentonite was firstly carried out and it was then used for the adsorption of copper(II) ions from aqueous solutions. The variation of the parameters of pH, contact ... -
Immunoglobulin G depletion from human serum with metal-chelated beads under magnetic field
(Elsevier Science BV, 2007)Magnetic poly(ethylene glycol dimethacrylate-N-methacryloyl-(L)-histidine methyl ester) [mag-poly(EGDMA-MAH) beads, 50-100 mu m in diameter, were produced by suspension polymerization for affinity depletion of immunoglobulin ... -
Immunoglobulin G recognition with F-ab fragments imprinted monolithic cryogels: Evaluation of the effects of metal-ion assisted-coordination of template molecule
(Elsevier Science BV, 2013)In this study, we applied the epitope imprinting approach to prepare molecularly imprinted monolithic cryogels for immunoglobulin G (IgG) recognition. In this respect, we imprinted F-ab fragments of IgG molecules instead ... -
Imprinted polymer/organo-smectite nanocomposites for paraoxon hydrolysis
(Elsevier Science BV, 2010)We have used the imprinting technique to create a polymer/organo-smectite nanocomposite catalyst. The aim was preparing a synthetic enzyme which shows high selectivity for paraoxon hydrolysis. Paraoxon imprinted ... -
Improved mobility of the copper phthalocyanine thin-film transistor
(Elsevier Science Sa, 2010)Copper phthalocyanine (CuPc) organic thin-film transistor (OTFT) was fabricated by thermal evaporation deposition on p-SiO2 dielectric layer. Organic thin-film transistors used in large display areas need the enhancement ... -
IMPROVEMENT OF THE CRYSTALLINITY AND OPTICAL PARAMETERS OF ZnO FILM WITH ALUMINUM DOPING
(2016)Bu çalışmada, katkısız ve alüminyum (Al) katkılı (%1 ve %3) çinko oksit (ZnO) filmleri cam alttaşlar üzerine spin kaplama tekniği ile sol jel metodu kullanılarak elde edilmiştir. Filmlerin yapısal ve optik özelliklerini ... -
In rich In1-xGaxN: Composition dependence of longitudinal optical phonon energy
(Wiley-Blackwell, 2010)The composition dependence of longitudinal optical (LO) phonon energies in undoped and Mg-doped In1-xGaxN samples are determined using Raman spectroscopy in the range of Ga fraction from x = 0 to x = 56%. The LO phonon ... -
In situ direct photoproduction of ketenes from substituted coumarins isolated in solid argon: The case of N-(2-oxo-2H-chromen-3-yl)acetamide
(Elsevier Science BV, 2009)In this study, the infrared spectrum of N-(2-oxo-2H-chromen-3-yl)acetamide (3-acetamidocoumarin; 3AC) isolated in solid argon, at 10 K, was obtained and assigned. In consonance with the relative energies of the three ... -
In situ electrochemical solid-phase extraction of anions and cations using polypyrrole and overoxidized sulfonated polypyrrole
(Elsevier Science BV, 2008)A new method for the extraction of both anions and cations is proposed using electro-synthesized polypyrrole (PPy) and overoxidized sulfonated polypyrrole film (OSPPy). In situ anion (chloride, nitrate, sulfate) and cation ... -
In situ photoproduction of dichlorodibenzo-p-dioxin from non-ionic triclosan isolated in solid argon
(Elsevier Science BV, 2012)The infrared spectrum of triclosan [or 5-chloro-2-(2,4-dichlorophenoxy)phenol] isolated in a low temperature (similar to 15 K) argon matrix has been recorded and assigned with help of DFT claculations undertaken with the ... -
In vitro antibacterial and antibiotic modifying activity of crude extract, fractions and 3 ', 4 ', 7-trihydroxyflavone from Myristica fragrans Houtt against MDR Gram-negative enteric bacteria
(Biomed Central LTD, 2018)Background: Nutmeg is the seed kernel inside the fruit of Myristica fragrans Houtt. (Myristicaceae). It possesses various pharmacological activities but is used in Cameroon only for its flavor in making cakes. The present ... -
Inactivation of microorganisms with neon plasma jet at atmospheric pressure
(Journal of Pure and Applied Microbiology, 2016)A dielectric barrier discharge (DBD) plasma jet of neon (Ne) at atmospheric pressure and room temperatures was arranged under a high frequency ac power supply. We achieved to obtain an atmospheric pressure glow-like discharge ... -
Influence of acid and heavy metal cation exchange treatments on methane adsorption properties of mordenite
(Scientific Technical Research Council Turkey-Tubitak, 2015)In this study, the adsorption of methane (CH4) capacities onto natural mordenite obtained from Izmir, Turkey, and its cationic forms (CuM, AgM, FeM, and HM samples) were investigated at the temperatures of 0 and 25 degrees ... -
Influence of acid treatment on structure of clinoptilolite tuff and its adsorption of methane
(Springer, 2015)This study presents the results of the methane adsorption properties of clinoptilolite tuff from Bigadic, Turkey and that of acid treated forms at 273 and 293 K up to 100 kPa using volumetric apparatus. In order to assess ... -
Influence of Al concentration on structural and optical properties of Al-doped ZnO thin films
(Springer, 2014)Undoped ZnO and Al-doped zinc oxide (ZnO:Al) thin films with different Al concentrations were prepared onto Si (100) substrate by pulsed filtered cathodic vacuum arc deposition system at room temperature. The influence of ... -
Influence of Annealing Temperature on the Structural and Optical Characteristics of Nanostructure SnO2 Films and Their Applications in Heterojunction Diode
(Amer Scientific Publishers, 2016)In present study, sol gel spin coating method was used to fabricate the nanostructure SnO2 films using the tin(II) acetate solutions. The solutions were spin coated on p-Si substrates and the obtained films was annealed ...
