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heterogeneous-conditions
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The first report on the catalytic oxidation of urazoles to their corresponding triazolinediones via in situ catalytic generation of Br+ using periodic acid or oxone®/KBr system
, Article Journal of Molecular Catalysis A: Chemical ; Volume 270, Issue 1-2 , 2007 , Pages 219-224 ; 13811169 (ISSN) ; Bagherzadeh, M ; Mallakpour, S ; Chehardoli, G ; Ghorbani Choghamarani, A ; Koukabi, N ; Dehghanian, M ; Doroudgar, M ; Sharif University of Technology
2007
Abstract
A combination of periodic acid or oxone® and a catalytic amount of KBr in the presence of few drops of water, were used for the catalytic oxidation of urazoles and bis-urazoles to their corresponding triazolinediones under mild and heterogeneous conditions with moderate to excellent yields. © 2007 Elsevier B.V. All rights reserved
Interference modeling and generalized static capacity for uplink CDMA cellular networks
, Article 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007, Penang, 14 May 2007 through 17 May 2007 ; February , 2007 , Pages 17-22 ; 1424410940 (ISBN); 9781424410941 (ISBN) ; Ashtiani, F ; Sharif University of Technology
2007
Abstract
In this paper, we propose a new approach in computing interference distribution and outage probability for uplink CDMA cellular networks. In this approach, we model time-varying interference as a discrete-time Markov chain with flexible approximation and find its steady state distribution. Our approach is based on tracing the time variation of the effective factors in interference such as spatial locations, activity status, and shadowing status for the connected users. To this end, we approximate shadowing with several discrete levels by Lloyd algorithm. Moreover, we incorporate correlation properties of the shadowing status in our model. Then, we map the effective factors onto the...