Yayın tarihi için Fizik Bölümü listeleme
Toplam kayıt 1178, listelenen: 21-40
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Zeolit ve silikalit'li katalizörler
(2001)Ulaşım, ısınma ve endüstri tesisleri hava kirliliğine neden olan üç ana kaynaktır . Hava kirliliğine neden olan bu faktörler içerisinde, ulaşımdan kaynaklanan kirlilik, en büyük orana ve en zarar verici etkiye sahiptir. ... -
CdIn2S4 yarıiletken filmlerinin X-ışını kırınım desenleri
(2001)Bu araştırmada, spray pyrolysis yöntemiyle elde edilen CdIn2S4 yarıiletken filmlerinin, oda sıcaklığında x-ışını kırınım desenlerinden, polikristal yapıya sahip oldukları görülmüştür. -
Kuaternion cebri ve kuaternionların matris temsillerine bir bakış
(2001)Bu çalışmada kuaternionların genel tanımı yapıldıktan sonra kuaternion-vektör ilişkisi incelenmiş ve kuaternion çarpımına ilişkin birçok yararlı eşitlik tanımlanmıştır. Daha sonra, kuaternionların matrislerle temsili ... -
Hofmann-dahpn-tipi klatratlar: {M(H2N(CH2)7NH2)Ni(CN)4.G(M=Ni. veya Cd;G=bifenil, antrasen, veya fenantren} için FTIR spektroskopik çalışmaları
(2001)Bu çalışmada toz halde hazırlanan M(l,7-diaminoheptan)Ni(CN)4GM=Ni veya Cd; G=bifenil , antrasen veya fenantren) klatratlarının FTIR spektrumları incelendi. Klatratlann spektral verileri bu konuk moleküller için mukayese ... -
Klasik fizikte kuaternionik gösterimler
(2001)Bu çalışmada; Newton'un 2. hareket yasası, 2 ayrı formda ve açısal momentum, konum ve birim kuaternionlara quaternion operatörleri uygulanarak kuatemionik denklemlerle incelenmiştir. Ayrıca klasik fizikteki harmonik salınıcı ... -
Preparation of magnetic dye affinity adsorbent and its use in the removal of aluminium ions
(Vsp BV, 2001)Aluminium has recently been considered as a causative agent in dialysis encephalopathy, osteodystrophy, and anemia occuring in hemodialysis patients. The aim of this study is to prepare magnetic poly (2-hydroxyethylmethacrylate) ... -
Zinc ion-promoted adsorption of lysozyme to Cibacron Blue F3GA-attached microporous polyamide hollow-fiber membranes
(Elsevier Science BV, 2001)Dye-affinity and metal chelate affinity adsorption are increasingly used for protein separation. Synthetic hollow fiber membranes have advantages as support matrices in comparison to conventional bead supports because they ... -
Heavy metal separation capacity of a porous methacrylamidophenylalanine containing membrane based on a polyhydroxyethyl methacrylate matrix
(Marcel Dekker Inc, 2001)The abilities of various sorbent materials for heavy metal removal have been reported in the literature. We have developed a novel approach to obtain high metal-sorption capacity utilizing a membrane containing ... -
Biosorption of cadmium(II), lead(II) and copper(II) with the filamentous fungus Phanerochaete chrysosporium
(Elsevier Sci LTD, 2001)The biosorption from artificial wastewaters of heavy metals (Cd(II), Pb(II) and Cu(II)) onto the dry fungal biomass of Phanerochaete chryosporium was studied in the concentration range of 5-500 mg 1(-1). The maximum ... -
Hamilton formulation for the analysis of RLC circuits
(Physics Essays Publication, 2002)The Hamiltonian formulation well known in classical mechanics is applied to RLC circuits. The flux linkages for the inductances are assumed to be the generalized momenta (conjugate momenta), and the Hamiltonian function ... -
Use and application of general quaternion transformations in robotics
(2002)Bu makalede kuaternion cebri ve prizmatik manipülatörler için bir genel kuaternion dönüşümünü incelenmiştir. Dönme dönüşümünde, Euler parametreleri ve dönme matrisi arasında bir bağıntı geliştirilmiştir. Bu bağıntı robot ... -
Preparation and characterization of the newly synthesized metal-complexing-ligand N-methacryloylhistidine having PHEMA beads for heavy metal removal from aqueous solutions
(Wiley-V C H Verlag GMBH, 2002)The aim of this study was to investigate in detail the performance for removal of heavy metal ions of beads composed of poly(2-hydroxyethyl methacrylate) (pHEMA) to which N-methacryloyhistidine (MAH) was copolymerized. The ... -
Frequency dependent in Zn$(In_2S_3)$ S semiconductor films
(2002)Zn$(In_2S_3)$S yarıiletken filmleri, yapıdaki $In_2S_3$ miktarı azaltılarak, spray pyrolysis tekniği ile elde edilmiştir. Elektriksel ölçümler, düzlemsel formda oluşturulan metal-yarıiletken-metal yapılarda elde edilmiştir. ... -
Electropolymerization and in situ sulfonation of aniline in water-acetonitrile mixture containing FSO3H
(Elsevier Science Sa, 2002)In situ sulfonation reaction of aniline was carried out in water and water-acetonitrile mixture by changing both aniline and fluorosulfonic acid (FSO3H) concentrations. The optimum conditions for the polymer formation was ... -
Poly(hydroxyethyl methacrylate-co-methacrylamidoalanine) membranes and their utilization as metal-chelate affinity adsorbents for lysozyme adsorption
(Vsp BV, 2002)Different adsorbents have been reported in the literature for protein purification. The authors have developed a novel and new approach to obtain high protein adsorption capacity utilizing a 2-methacrylamidoalanine-containing ... -
Preparation of poly(hydroxyethyl methacrylate-co-methacrylamidohistidine) beads and its design as a affinity adsorbent for Cu(II) removal from aqueous solutions
(Elsevier Science BV, 2002)Different metal-complexing ligands carrying synthetic adsorbents have been reported in the literature for heavy metal removal. We have developed a novel and new approach to obtain high metal adsorption capacity utilizing ... -
Preparation of cibacron blue F3GA-attached polyamide hollow fibers for heavy metal removal
(John Wiley & Sons Inc, 2002)Dye-affinity adsorption has been used increasingly for heavy metal removal. Synthetic hollow fibers have advantages as support matrices in comparison to conventional bead supports because they are not compressible and they ... -
Electrochemical copolymerization of aniline and anilinesulfonic acids in FSO3H/acetonitrile solution
(John Wiley & Sons Inc, 2002)The effects of 2-aminobenzenesulfonic acid (orthanilic acid), 3-aminobenzenesulfonic acid (metanilic acid), and 4-aminobenzenesulfonic acid (sulfanilic acid) on the electropreparation and properties of polyaniline (PANI) ... -
Quantum chemical studies on some 1,2,4-triarylsubstituted imidazoles
(Elsevier Science BV, 2002)The geometries, proton affinities and thermodynamic properties of some 1,2,4-triarylsubstituted imidazole derivatives were calculated with full geometry optimization using AM1 and PM3 methods in aqueous phase. A possible ... -
Investigation of acid-base behaviour of some 2-pyridylbenzimidazoles using semi-empirical methods
(Elsevier Science BV, 2002)Acid-base behaviour of some 2-(n'-pyridyl) benzimidazoles (n' = 2,3,4) have been studied in order to search the protonation site and to predict pK(a) values of these molecules both in gas and aqueous phases using semi-empirical ...