95 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Cape TownZA4 papers
- University of PortsmouthGB2 papers
- CEA GrenobleFR1 paper
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1 paper
- Institut Nanosciences et CryogénieFR1 paper
- Queen Mary University of LondonGB1 paper
- Stockholm UniversitySE1 paper
- Universidad de AlcaláES1 paper
- Universidad de CádizES1 paper
- Universidad Europea de MadridES1 paper
- University of KwaZulu-NatalZA1 paper
- University of LondonGB1 paper
6 papers
A bibliometric Analysis on Spectrum Sensing in Wireless Networks
Nyashadzashe Tamuka, Khulumani Sibanda
Spectrum scarcity is a prevalent problem in wireless networks due to the strict allotment of the spectrum (frequency bands) to licensed users by network regulatory bodies. Such an…
Comparison of the material quality of AlxIn1-xN (x ~ 0-0.50) films deposited on Si (100) and (111) by reactive RF sputtering
M. Sun, R. Blasco, M. de la Mata +5
Here, we compare the material quality of AlxIn1-xN layers deposited on Si with different crystallographic orientations, (100) and (111), via radio-frequency (RF) sputtering. To mod…
Consistency of dust solutions with div H=0
Roy Maartens, William Lesame, George Ellis
One of the necessary covariant conditions for gravitational radiation is the vanishing of the divergence of the magnetic Weyl tensor H_{ab}, while H_{ab} itself is nonzero. We comp…
Integrability of irrotational silent cosmological models
H van Elst, C Uggla, W Lesame +2
We revisit the issue of integrability conditions for the irrotational silent cosmological models. We formulate the problem both in 1+3 covariant and 1+3 orthonormal frame notation,…
Irrotational dust with Div H=0
W. M. Lesame, G. F. R. Ellis, P. K. S. Dunsby
For irrotational dust the shear tensor is consistently diagonalizable with its covariant time derivative: , if and only if the divergence of the mag…
Integrability Conditions for Irrotational Dust with a Purely Electric Weyl Tensor: A Tetrad Analysis
W. M. Lesame, P. K. S. Dunsby, G. F. R. Ellis
All spacetimes for an irrotational collisionless fluid with a purely electric Weyl tensor, with spacetime curvature determined by the exact Einstein field equations, are shown to b…