The accelerating and frequently fluctuating price of conventional diesel, together with growing environ- mental concerns has sparked renewed attention on the search for an alternative fuel. The awareness of the toxic effects related to the tailpipe emissions of vehicles has driven many countries to look for a less-polluted transportation fuel. In t

A recent focus in itemset mining has been the discovery of frequent itemsets from high-dimensional datasets. With exponentially increasing running time as average row length increases, mining such datasets renders most conventional algorithms impractical. Unfortunately, large cardinality itemsets are likely to be more informative than small cardina

The cockle shell, which is available in abundance, has no any eminent use and is commonly regarded as a waste, was utilized as a source of calcium oxide in catalyzing a transesterification reaction to produce biodiesel (methyl esters). A central composite design (CCD) was used to optimize the two major influential reaction variables: catalyst and m

Femtocell which is a home access point that installed by end consumers inside their houses is an important parameter and a promising technology in future wireless networks. It is proposed as a solution to the indoor propagation problems and to increase the indoor bandwidth. However, many challenges need to be addressed before deployment of femtocel

Femtocell which is a home access point that installed by end consumers inside their houses is an important parameter and a promising technology in future wireless networks. It was proposed as a solution to the indoor propagation problems and to increase the indoor bandwidth. However, many challenges need to be addressed before deployment of femtoce

Indoor path loss models are playing an important role in the design and planning of the 4th generation of the mobile networks. Moreover, it is an important component of system level simulators used to evaluate and test the network performance before it has been established. Many propagation models were proposed for this purpose. Most of these model

A multiwavelength Brillouin/Raman distributed Bragg reflector fiber laser operating in the S-band region is proposed and demonstrated. The laser uses a 7.7 km long dispersion-shifted fiber with an effective mode area of 15 μm2 as the Brillouin and Raman gain media simultaneously. Two 1420 nm laser diodes with a combined power of 372 mW are used as

Extraction of a single channel Brillouin Stokes line generated by pumping a length of single mode fibre is demonstrated using a silicon oxynitride microring resonator. The high Q-factor microring resonator has a steep slope transmission profile with an extinction ratio of 20 dB and a free spectral range of 0.4 nm. Experimental results show that ext

Current global environmental problems such as global warming, urban heat island impact, water contamination and deforestation lead towards a great challenge to present and future generation in providing its solution. The role of design intervention in minimizing and mitigating such problems seems to be vital. Therefore, developing an environmental

يهدف هذا البحث إلى دراسة محددات الشخصية الإبداعية عند الإمام محمد بن إدريس الشافعي، وذلك من خلال فحص أهم جوانب حياة هذا الإمام التي ساهمت مجتمعة في صقل شخصيته الإبداعية التي أثمرت صياغة رصينة