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Start Over Author "Sabah A" Journal journal of physics: conference series
141 results on '"Sabah A"'

5. Dominant cell method for the best linear assignment

Author

Sabah F Abd Alhussein

Subjects
History, Computer Science Applications, Education
Abstract

This research aims to present a new method for best solution (B.S) of assignment problem (A.P) in linear programming (L.P). It is like the method by which one can find the (B.S) of transportation problem (T.P) using the dominant cells (D.C) that was called (D.C.T) method.Since the (A.P) is different from (T.P) in some features, the researcher has made changes in the conditions of (D.C.T) in order to determine the dominant cell for assignment (D.C.A). At last, the researcher has applied his method of (D.C.A) beside Hungarian method on several (A.P) and found it to be the best.

Published
2022
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20. Does quantum entanglement turn Rowlands’ ‘principle of duality’ into a ‘law’?

Author

Sabah E. Karam

Subjects
History, Computer Science Applications, Education
Abstract

Physical laws are permanently observed. They are universal but not proven. Newton’s universal law of gravitation and three laws of motion, derived from the observations and theories of Copernicus, Kepler, Galileo and others, were used to take astronauts to the moon and return them safely to earth. Theories about the origin of gravity and whether gravitational forces are fundamental, quantum, entropic, induced, emergent, curved spacetime or fields like electromagnetism are still being probed. General relativity is a geometric theory, not a law, about gravity. In a book called Zero to Infinity: The Foundations of Physics Peter Rowlands asserts that physics is “founded entirely on the principle of duality.” Wave-particle duality is one of the most fundamental representations of quantum objects. Photons, electrons, neutrinos and even molecules have been shown to be in superposition and entangled. This paper will examine the role that quantum entanglement plays in the fermion/boson relationship of Rowlands’ nilpotent Dirac equation. Many other entangled physical dualities, identified as being foundational to physics, strongly suggest that his ‘principle of duality’ should be promoted into a physical law.

Published
2022
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38. Synthesis, Characterization and Thermal Studies of Fe(II), Co(II), Ni(II) and Cu(II) Complexes with bis-(4-benzylidenamino-phenyl)-methane Schiff base ligand

Author

Afaq A. Turki, Hiba H. Sabah, and Atared F. Hassan

Subjects
History, chemistry.chemical_compound, Schiff base, chemistry, Ligand, Polymer chemistry, Methane, Computer Science Applications, Education, Characterization (materials science)
Abstract

A new series of Co(II), Fe(II), Cu(II) and Ni(II) complexes of Bis–(4-benzylidenamino-phenyl)-methane (L) have been prepared and characterized. The complexes conform to general formula [CoL(H2O)3] Cl2, [FeL(H2O)5]SO4.2H2O, [CuL(H2O)5] NO3 and [NiL(H2O)3Cl2], Infra red spectra and elemental analysis reveal uni-dentate coordination of Schiff base to metal ions. Molar conductivity measurements show that complexes (I, III) behave as 2:1 electrolyte while complex (II) behave as 1:1 electrolyte. The thermal studies for complexes shows that the complexes are thermal stable.

Published
2021
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