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您的检索式：作者名="Mohamed A. Rashed"
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| 1 | Short‐term evaluation of autologous transplantation of bone marrow–derived mesenchymal stem cells in patients with cirrhosis: Egyptian study显示文摘 | Mona A. Amin Dina Sabry Laila A. Rashed Wael M. Aref Mohamed Ahmed el‐Ghobary Marwa Salah Farhan Hany Ahmed Fouad Youssef Abdel‐Aziz Youssef | 2013 | Clin Transplant2013，，4： | 2 |
| 2 | Geochemistry of lamprophyres associated with uranium mineralization, Southeastern Desert, Egypt显示文摘Two brecciated shear zones (NNW-SSE) are found crosscutting cataclastic rocks. The cataclastic rocks (3.0 km2) occupy the core of the granitic pluton and enclose a roof pendant of mafic-ultramafic rocks. The NNW-SSE-extending lamprophyre dykes vary in thickness from 0.5 m to 1 m and up to 800 m long, cutting the cataclastic rocks and are composed mainly of plagioclases, amphiboles, relics of pyroxenes and K-feldspar phenocrysts embedded in fine-grained groundmass. They are characterized as being peraluminous, calc-alkaline in composition (chemical trap) and enriched in calcite, sulfide and P2O5. The lamprophyres were affected by hydrothermal alteration (chlorite-carbonate alteration) while the cataclastic rocks were affected by diagenetic alteration (K-feldspar-albite alteration). Uranium mineralization is the product of hydrothermal events and has been investigated by X-ray diffraction (XRD) and environmental scanning electron microscopy (ESEM), involving primary uranium minerals (U3O8) and secondary uranium minerals (uranophane and beta-uranophane, kasolite, torbernite, autonite and meta-autonite) in addition to U- bearing minerals (astrocyanite, betafite and fergusonite). The presence of different mineral parageneses associated with clay minerals indicates that the lamprophyres were subjected to acidic and alkaline mineralizing solutions. Moreover, the U-Zr/U, U-Ce/U values show negative correlations, confirming U-enrichment in both cataclastic rocks and shear zones while the Th-eU/eTh, Th-Zr/Th and Th-Ce/Th values show negative correlations, indicating that the U-bearing solutions are rich in Th in the cataclastic rocks only. | Mohamed E. Ibrahim Mohamed M. El-Tokhi Gehad M. Saleh Mamdouh A. Hassan Mohamed A. Rashed | 2007 | Chinese Journal Of Geochemistry2007，26，4： | 2 |
| 3 | Parasitic Contamination of Commonly Consumed Fresh Leafy Vegetables in Benha, Egypt显示文摘 | Maysa Ahmad Eraky Samia Mostafa Rashed Mona El-Sayed Nasr Azza Mohammed Salah El-Hamshary Amera Salah El-Ghannam Alvin A. Gajadhar | 2014 | Journal of Parasitology Research2014，，： | 1 |
| 4 | Performance evaluation of a WDM/OCDM based hybrid optical switch utilizing efficient resource allocation显示文摘A hybrid optical switch(HOS) with physical layer of wavelength division multiplexing and optical code division multiplexing(WDM/OCDM) scheme is proposed. An additional feature to the HOS than optical cross connect(OXC) is that the controller can process requests for both circuit establishment and burst scheduling. In our study, the measurement criteria of HOS are the blocking probability, probability of error, and probability of outage. To simplify the analysis, no distinction is made between a circuit in progress and a burst in progress. Moreover, a minimum fit(MinF) resource allocation strategy is applied in order to increase the bandwidth efficiency and control the multiplexing interference of the OCDM. A 2D Markov model for the HOS is presented using the MinF strategy. Numerical results reveal that the code parameters and the resource allocation strategy greatly affect the performance. Certain periority can be achieved by assigning shorter codes to high periority users and longer codes to low periority users. Also,the probability of error and outage are reduced by appling the MinF strategy. | Ahmed Nabih Zaki Rashed Abd-Elnaser A. Mohammed Osama M.A. Dardeer | 2014 | Chinese Optics Letters2014，12，5： | 0 |
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