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Ismail Warad

Bio: Ismail Warad is an academic researcher from Qatar University. The author has contributed to research in topics: Corrosion & Adsorption. The author has an hindex of 29, co-authored 339 publications receiving 3198 citations. Previous affiliations of Ismail Warad include An-Najah National University & Qatar Airways.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors used density functional theory (DFT) and Monte Carlo Simulations (MC) to describe the electronic and adsorption properties of Q1 and Q2.

114 citations

Journal ArticleDOI
TL;DR: In this paper, new sugar-based glucose derivatives were synthesized as ecological corrosion inhibitors for carbon steel in an acidic medium, and the products obtained in the form of syrupy liquids were characterized by NMR spectroscopy analysis.

111 citations

Journal ArticleDOI
TL;DR: In this article, the adsorption and corrosion inhibition performance of two benzimidazole derivatives, namely: SHA and BB1C, were studied as a corrosion inhibitors for mild steel (MS) in 10 m HCl solution using Weight Loss (WL) measurements, Potentiodynamic Polarization (PDP), Electrochemical Impedance Spectroscopy (EIS), Scanning Electron Microscopy(SEM) and Energy Dispersive X-ray (EDX) analysis.

107 citations

Journal ArticleDOI
TL;DR: Corrosion inhibition efficiencies and adsorption behavior of the CH and CH-HQ was supported by UV-visible (UV-vis) spectrophotometric analyses, and Monte Carlo simulations and density functional theory calculations were carried out to corroborate the experimental results.

106 citations

Journal ArticleDOI
TL;DR: In this paper, the authors used the tissues of Cyclamen persicum tubers to prepare activated car-bon (CTAC) by different methods and set up a thermodynamic study of the pharmaceutical dic- lofenac sodium (DCF) adsorption from aqueous solution onto this activated carbon.

99 citations


Cited by
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Journal ArticleDOI

[...]

08 Dec 2001-BMJ
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

33,785 citations

Journal ArticleDOI
10 Mar 1970

8,159 citations

Journal ArticleDOI
01 Dec 1941-Nature
TL;DR: The Pharmacological Basis of Therapeutics, by Prof. Louis Goodman and Prof. Alfred Gilman, New York: The Macmillan Company, 1941, p.
Abstract: The Pharmacological Basis of Therapeutics A Textbook of Pharmacology, Toxicology and Therapeutics for Physicians and Medical Students. By Prof. Louis Goodman and Prof. Alfred Gilman. Pp. xiii + 1383. (New York: The Macmillan Company, 1941.) 50s. net.

2,686 citations

01 Feb 1995
TL;DR: In this paper, the unpolarized absorption and circular dichroism spectra of the fundamental vibrational transitions of the chiral molecule, 4-methyl-2-oxetanone, are calculated ab initio using DFT, MP2, and SCF methodologies and a 5S4P2D/3S2P (TZ2P) basis set.
Abstract: : The unpolarized absorption and circular dichroism spectra of the fundamental vibrational transitions of the chiral molecule, 4-methyl-2-oxetanone, are calculated ab initio. Harmonic force fields are obtained using Density Functional Theory (DFT), MP2, and SCF methodologies and a 5S4P2D/3S2P (TZ2P) basis set. DFT calculations use the Local Spin Density Approximation (LSDA), BLYP, and Becke3LYP (B3LYP) density functionals. Mid-IR spectra predicted using LSDA, BLYP, and B3LYP force fields are of significantly different quality, the B3LYP force field yielding spectra in clearly superior, and overall excellent, agreement with experiment. The MP2 force field yields spectra in slightly worse agreement with experiment than the B3LYP force field. The SCF force field yields spectra in poor agreement with experiment.The basis set dependence of B3LYP force fields is also explored: the 6-31G* and TZ2P basis sets give very similar results while the 3-21G basis set yields spectra in substantially worse agreements with experiment. jg

1,652 citations