1. الرئيسية
  2. Thesis

Thesis

Laplace Transform Method for Solving Ordinary Fractional Order Differential Equations with Constant Coefficients

Fractional Calculus is a branch of mathematical analysis that satisfies the possibility of considering the power of the differential operator as a real number. Several different families of fractional derivatives (such as,Riemann–Liouville, Caputo, Hadamard and others) are developed.In this work, we are investigate the applications of the Laplace transform to construct the solution of homogenous and nonhomogeneous

إنجليزية

Study Of Adsorption Process For Some Phenolic Compounds On The Surface Of (Acrylamide -Bisacrylamide) Co Polymer.

Copolymer(Acrylamide–Bisacrylamide),was prepared, and identified by F.T.I.R. Spectroscopy then swelling tests were performed for this polymer in different solvents.The adsorption processes of some phenolic compounds: ph, DNPh, APh and NPh in aqueous solution on the surface of this polymer were investigated by the use of UV – visible spectrophotometer and also studied at different: PH, temperatures, and ionic strength.Results revealed that the adsorption for compounds

إنجليزية

Study the electrical conductivity of cross-linked polymers in the pure and doped state

    With in the frame of this work , cross-linked polymer prepared in different percents (25:75),(50:50%) and (0:100%) (glycerol:triethanol amine) which produced polymer I, polymerII and polymerIII consequently via condensation polymerization between glycerol and triethanol amine with malice anhydride.

إنجليزية

Construction of Oxymetazoline Hydrochloride Selective Electrodes and Determination of Oxymetazoline in Pharmaceutical Drugs

                Oxymetazoline hydrochloride ion selective electrodes were constructed. Construction was based on drug complex formation with dodeca-tungstophosphoric acid as ionophor and many plasticizer: Di –butyl phthalate (DBPH), Tri- butyl phosphate (TBP), O- nitrophenyloctylether (ONPOE),  Di- octyl phthatale (DOP) in PVC matrix membranes. The matrix membrane was formed by mixing plasticizer and drug complexes with PVC.

إنجليزية

Synthesis, Characterization and Study of the Electrical Properties of Some Aromatic Schiff-base Ligands and Their Cu, Ni and Co Coordination Polymers

          Four tetradentate ligands were prepared by reacting salicylaldehyde with different aromatic diamines in acidic medium (Schiff-base reaction). F.T.IR, 1H-NMR and Maldi- MS techniques were employed to identify the L1 (1,4-bis(N-o-hydroxybenzylidine)phenylene diamine)and L2 (4,4-bis(o-hydroxybenzylidene)biphenyl- amine) molecules, while only F.T.IR and 1H-NMR spectra were used in the identification of L3 (4,4-bis(o-hydroxybenzylidene)methylene-dianiline)molecules.

إنجليزية

PREPARATION AND CHARACTERIZATION OF OXADIAZOLE DERIVATIVES AND HYDRAZINO BENZOTHIAZOLE AND THEIR TRANSITION METAL COMPLEXES

          Three new ligands have been prepared in this work, which were chosen to synthesis a new set of transition metal complexes [Cu (II), Ni (II), Hg (II), Cd (II) and Co (II)]  LI=(2-[5-phenyl-2-methylthio-1,3,4-oxadizole]-5-phenyl-1,3,4-oxadiazole), LII=2-(O-chloro benzylidine) hydrazine benzothiazole and LIII=2-(p-hydroxy benzylidine) hydrazine benzothiazole were prepared by Schiff reaction between 2-mercaptobenzothiazole and 2-chlorobenzaldehyde and p-hydroxy  benzaldehyde.The new ligands were characterized by the Infra-red spectrosco

إنجليزية

Synthesize and Characterization of Mn(II), Co(II),Fe(III) and Cu(II) complexes with substituted bis (oxadiazole sulfide).

1,3,4-Oxadiazole derivatives were prepared which have a number of therapeutic applications, and in a purpose of investigating the coordination behavior of new compounds towards transition metal ion, these compounds are prepared by oxidation of 5-aryl-1,3,4-oxadiazole-3-thiol using hydrogen peroxide forming bis(5-aryl-1,3,4-oxadiazole-2-yl) disulfide.The 1,3,4-oxadiazole compounds (LI, LII and LIII) have been used as ligands to prepared a number of transition metal complexes, which include [Fe(III), Co(II), Cu(II) and Mn(II)] ions.The ligands were characteriz

إنجليزية

SYNTHYESIS AND CHARACTERIZATION OF SOME TRANSITION METAL COMPLEXES WITH SCHIFF BASES DERIVED FROM 2-HYDRAZINO BENZOTHIAZOLE

The new ligands have been prepared in this work, which contain  benzothiazole linked to three different aldehydes throw imine group. these three ligands include:

LI=  2- (Acetlidine ) hydrazine benzothiazole.LII= 2- (O -hedroxy benzylidine) hydrazine benzothiazole. LIII=2-(2,4,6- trimethoxy benzylidine) hydrazine benzothiazole.

Which were reacted with the transition metal iones ( Ni(II) , Co(II) , Cu(II) , Cd(II) ).

إنجليزية
المزيد