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Articles by A. Hameed
Total Records ( 3 ) for A. Hameed
  A. Hameed and Ali Oudah
  This study addresses minimum mean square error scheme used with asynchronous interference mitigation in cooperative base stations. The asynchronous transmission is considered owing to the dissimilar transmission times between the base station and mobile stations. Furthermore, the channel quantization errors due to channel quantization are taken into account. The suggested model is resilient to asynchronous interference and channel quantization errors associated with base station cooperative systems. The developed scheme outperforms the conventional ones found in literature as demonstrated.
  S. Andleeb , N. Atiq , M. I. Ali , F. Ur-Rehman , A. Hameed and S. Ahmad
  Biodegradation and decolorization of Drimarene blue K2-RL (anthraquinone) dye by a fungal isolate Aspergillus niger SA1 was studied in self designed lab scale bioreactor system with different solid supports. Aspergillus niger SA1, was efficiently immobilized on sand and sodium alginate beads. The immobilized cells were used in the form of fluidized bed reactor for textile dye (Drimarene blue) removal. Both the reactors were operated at room temperature and pH=5.0 in continuous flow mode with increasing concentrations of dye in simulated textile effluent. The reactors were run on fill and draw mode, with hydraulic retention times of 24-72 h. The fluidized bed bioreactor with sand as immobilizing support (FBR1) showed overall better performance as compared to fluidized bed bioreactor with sodium alginate as immobilizing support (FBR2). The average overall color, BOD and COD removal in the FBR1 system were up to 78.29, 70.81 and 83.07% respectively, with 50 ppm initial dye concentration and HRT of 24 h. While 72.19%, 86.63% and 74.74% removal of color, BOD and COD were observed, respectively, in FBR2 with the same conditions. Reductions in BOD and COD levels along with color removal proved that decolorization and biodegradation occurred simultaneously.
  A. Hameed and Ali Oudah
  This study examines the effects of 2 Information and Communication Technology (ICT) related factors, ICT utilization and perceived ease of ICT usage, on 2 job outcomes, job satisfaction and work effectiveness. On a theoretical basis, the researcher proposed that these effects could be mediated by knowledge sharing. A total of 246 usable responses from full-time employees working in China were analyzed using hierarchical regression analyses which were furthered confirmed by Sobel test and bootstrap-based PROCESS analysis. Results showed that both job satisfaction and work effectiveness were positively related to ICT utilization and perceived ease of IC T usage. Employees knowledge sha ring orientation significantly mediated the relationships of job satisfaction with ICT utilization and ease of ICT usage, as well as the relationships of work effectiveness with these 2 factors. The present study provides further understanding of the mechanism underlying the influences of ICT on employee workplace issues.
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