Fahmy, H. A. H., and A. Elezabi,
"Bipolar sequences correlator and squarer for multiple-access systems",
Forty-Second {A}silomar Conference on Signals, Systems, and Computers, {A}silomar, {C}alifornia, {USA}, pp. 1837–1839, oct, 2008.
AbstractSignificant performance gains are achieved in code-division multiple-access communication systems by including knowledge of user cross-correlations in the channel decoder metrics. Within these calculations, the sums of squares of cross-correlations between the bipolar spreading sequences appear frequently. In this contribution we present the hardware design of a correlator and a squarer for such bipolar sequences. Our focus is to explore the potential savings in the amount of hardware needed while maintaining a high speed design. We prove the mathematical concepts leading to such savings and describe our methodology to test the resulting designs for functionality. Both designs pass the tests.
Abdelrahman, A. I., A. M. Mohammad, M. S. El-Deab, T. Okajima, and T. Ohsaka,
"Bisthiol-assisted multilayers' self-assembly of gold nanoparticles: Synthesis, characterization, size control and electrocatalytic applications",
Macromolecular Symposia, vol. 270, issue 1, pp. 74 - 81, 2008.
AbstractThe layer-by-layer (LBL) approach has been utilized to self-assemble multilayers films of citrate-stabilized gold nanoparticles (AuNPs) on polycrystalline gold (poly-Au) substrates. 1,4-benzenedimethanethiol (BDMT) was used as a cross linker to bind every two successive AuNPs layers. The transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) techniques were employed to confirm the existence of the alternative layers of AuNPs and BDMT in the selfassembled multilayers film. The AuNPs modified poly-Au electrode showed a significant electrocatalysis towards the reduction of oxygen (a positive potential shift of about 100 mV was observed in the reduction peak potential compared to that obtained at the bare poly-Au electrode). The AuNPs tend to aggregate during their assembling to different extent which markedly depends on the substrate geometry and roughness. An effort was dedicated to understand and control the aggregation phenomenon. Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA.
Ibrahim, F. F., M. M. Sayed, H. A. El-garem, and M. M. Ghannam,
"Blood telomerase activity and DNA dielectric properties in human hepatocellular carcinoma and chronic liver disease",
Biotechnology, vol. 7, issue 1, pp. 66 - 72, 2008.
Abstractn/a
Amer, H. M., H. A. Hussein, I. A. El-Sabagh, A. A. El-Sanousi, M. S. Saber, and M. A. Shalaby,
"Baculovirus expression of the bovine coronavirus nucleocapsid protein in spodopetra frugiperda insect cells. ",
Egyptian Journal of Virology, vol. 5, issue 1, pp. 284-303, 2008.
Amer, H. M., H. A. Hussein, I. M. El-Sabagh, A. A. El-Sanousi, M. S. Saber, and M. A. Shalaby,
"Baculovirus expression of the bovine coronavirus nucleocapsid protein in Spodoptera Frugiperda insect cells",
In The Second International Conference of Virology “Emerging and Exotic Viral Infection: Challenging Threats of Human, Animal and Plant Health”, vol. 10, no. 2, Egypt, Egyptian Society of Virology, 2008.
Abstract
Abu El Ela, M., M. Nabawi, and M. Abdel Azim,
"Behavior of the Mercury Removal Absorbents at Egyptian Gas Plant",
SPE-114521, The CIPC/SPE Gas Technology Symposium 2008 Joint Conference, Calgary, Alberta, Canada, 2008.
A.M.A.;, S., S. A. H.; Hamdi, S. R. Fahmy, and S. M. Rawi,
"Biochemical and electrophoretic studies on Biomphalaria Alexandrina snails exposed to copper and iron. ",
Egypt.J. Zool., , vol. 51 :, pp. 515 − 538. , 2008.