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4.700  Articles
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This paper presents a novel microstrip lowpass filter. The proposed filter consists of two high impedance cells, which are integrated by a stub loaded transmission line. A rectangular stub is utilized to reduce the overall circuit size so that it has a co... see more

In this paper, a compact microstrip bandpass filter is designed using two open loop resonators. In order to obtain a tunable bandpass response with low insertion loss, two stubs are loaded inside them. The design process is based on obtaining the input ad... see more


Metal matrix composites (MMCs) have been increasingly used in industries, nuclear plant, and automobiles due to their superior properties compared to other alloys, and that is owing to the tough and abrasive hard reinforced particles. It’s complicated to ... see more

Recurrent neural networks (RNN) and feed-forward multi-layer perceptron’s have been proposed for determining the absence and presence of speech in continuous voice signals when there is a variety of background noise levels present. The Aurora2 and Aurora3... see more


Polyvinyl alcohol/Chitosan blend (PVA/CC(50:50) and (PVA/CC/10wt% SiO2) composite, were prepared by casting method on a glass plate . Poly (vinyl alcohol)-chitosan blend films were prepared with a thickness about 250 micron. The crystalline structure of P... see more


The period of the Abbasid da'wa witnessed a major turning point in the Arab and Islamic history because it included two stages: the end and the fall of the Umayyad state in 132 AH, the beginning of the Abbasid state, and the position of Imam Sadiq (peace ... see more

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