Mohammad A. Saleh

Learn More
It is, by now, well known that McIntyre’s localized carrier-multiplication theory cannot explain the suppression of excess noise factor observed in avalanche photodiodes (APDs) that make use of thin multiplication regions. We demonstrate that a carrier multiplication model that incorporates the effects of dead space, as developed earlier by Hayat et al.(More)
The conventional McIntyre carrier multiplication theory for avalanche photodiodes (APD’s) does not adequately describe the experimental results obtained from APD’s with thin multiplication-regions. Using published data for thin GaAs and Al0 2Ga0 8As APD’s, collected from multiplication-regions of different widths, we show that incorporating dead-space in(More)
Peritoneal tuberculosis (TB) is a considerable problem in certain developing nations. Current diagnostic tests for peritoneal TB are difficult and time-consuming. This study aimed to determine the effectiveness of an adenosine deaminase (ADA) assay and the QuantiFERON-Gold (QFT-G) assay in the rapid diagnosis of TB peritonitis. Forty-one patients with a(More)
The dead-space multiplication theory of Hayat and Saleh @J. Lightwave Technol. 10, 1415 ~1992!#, in conjunction with the multiplication-width-independent ionization-coefficient model developed by Saleh et al. @IEEE Trans. Electron Devices 47, 625 ~2000!#, are shown to accurately predict breakdown voltages for thin avalanche photodiodes of GaAs, InP,(More)
A large number of network applications today allow several users to interact together using the many-to-many service mode. In many-to-many communication, also referred to as group communication, a session consists of a group of users (we refer to them as members), where each member transmits its traffic to all other members in the same group. In this paper,(More)
A large number of network applications today allow several users to interact together using the many-to-many service mode. A many-to-many session consists of group of users (we refer to them as members), where each member transmits its traffic to all other members in the same group. We address the problem of designing and provisioning of WDM networks to(More)
A large number of network applications today allow several users to interact together using the many-to-many service mode. In many-to-many communication, also referred to as group communication, a session consists of a group of users (we refer to them as members), where each member transmits its traffic to all other members in the same group. In this paper,(More)
Species in the extremely thermophilic genus Caldicellulosiruptor can degrade unpretreated plant biomass through the action of multimodular glycoside hydrolases. To date, most focus with these bacteria has been on hydrolysis of glucans and xylans, while the biodegradation mechanism for arabinose-based polysaccharides remains unclear. Here, putative(More)