Ahmed, Mustafa Abaas Mohamedelkhair; Meyer, Walter Ernst; Nel, Jacqueline Margot(Elsevier, 2019-07)
In this study, we fabricated Schottky diode devices on ZnO, Sm and Ce doped and co-doped ZnO thin films grown by the sol–gel spin coating. The structural and optical properties of the sol–gel films are studied, and the ...
Boeyens, Jan Christoffel Antonie(University of Toronto Press, 2010-06)
Gödel’s rotating-universe solution of Einstein’s gravitational field
equations is interpreted in real projective space. The compass of inertia
is shown to coincide with the involuted geodesic of the closed manifold
and ...