S
S. H. Allam
Researcher at Cairo University
Publications - 40
Citations - 282
S. H. Allam is an academic researcher from Cairo University. The author has contributed to research in topics: Laser & Spectral line. The author has an hindex of 10, co-authored 40 publications receiving 261 citations.
Papers
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Journal ArticleDOI
Observed Enhancement in LIBS Signals from Nano vs. Bulk ZnO Targets: Comparative Study of Plasma Parameters
Ashraf M. El Sherbini,Abdelnasser M. Aboulfotouh,Farid F. Rashid,S. H. Allam,Ashraf El Dakrouri,Tharwtt M. El Sherbini +5 more
TL;DR: In this paper, an experimental evidence of enhanced LIBS emission upon replacing a Bulk-Based ZnO target by the corresponding Nano-Based target was reported and the results of the spectroscopic analysis conclude that these signal enhancements can be attributed to the higher concentration of neutral atoms in the nano-based material plasma with respect to the corresponding Bulk-based ZnOs material.
Journal ArticleDOI
The influence of tilt angle on the CMR in Sm0.6Sr0.4MnO3
TL;DR: In this paper, the structural and transport properties of Sm 0.6 Sr 0.4 MnO 3 polycrystalline sample were investigated using solid-state reaction technique and X-ray diffraction (XRD) showed a single phase sample.
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Magnetocaloric effect, electric, and dielectric properties of Nd0.6Sr0.4MnxCo1−xO3 composites
I.A. Abdel-Latif,A.M. Ahmed,H.F. Mohamed,S.A. Saleh,José A. Paixão,Kh. A. Ziq,M. Kh. Hamad,E.G. Al-Nahari,M. Ghozza,S. H. Allam +9 more
TL;DR: In this article, the magnetocaloric effect and electric dielectric properties of the Nd-cobaltate perovskites Nd0.6Sr0.4Co0.7O3 were investigated for possible use in magnetic cooling applications.
Journal ArticleDOI
Laser-induced breakdown spectroscopy: technique, new features, and detection limits of trace elements in Al base alloy
TL;DR: In this paper, a 6-ns pulsed Nd-YAG laser was used to focus a laser beam onto a target in air at atmospheric pressure, and the emission spectra were recorded using an SE 200 Echelle spectrometer.
Journal ArticleDOI
Fine-structure calculations of energy levels, oscillator strengths, and transition probabilities for sodium-like ions (Co XVII–Kr XXVI)
TL;DR: In this article, the fine-structure energy levels, oscillator strengths and transition probabilities for transitions among the terms belonging to the 1s22s22p6ns (2S), 1s 22s 22p6np (2P), and 1s-22s-p6nd (2D) configurations were calculated.