https://repository.sustech.edu/handle/123456789/16604 2026-04-09T00:41:35Z https://repository.sustech.edu/handle/123456789/16610 المشاكل الفنية المؤثرة علي أداء محطات إمداد المياه الجوفية بدارفور بخاري ، هناء الحاج يوسف; المنقوشي ، حامد عبدالعال; محمود ، سامي هاشم محمد تهدف هذه الدراسة إلي التعرف علي المشاكل الفنية التي تؤدي إلي تدهور محطات المياه الجوفية بولاية شمال دارفور بشكل عمومي ومناقشة مسبباتها وتأثيرها علي مكونات المحطة كما بحثت الدراسة بتركيز عن الحلول التي بولاية شمال دارفور. أجريت هذه ............... مقالة 2015-01-01T00:00:00Z https://repository.sustech.edu/handle/123456789/16612 Cover Page JECS Vol. 16, No. 1 Abdelhaleem, Rashid Abdelhaleem Saeed Cover Page Vol. 16, No. 1 article 2015-01-01T00:00:00Z https://repository.sustech.edu/handle/123456789/16606 Performance Analysis of Adaptive Joint Call Admission Control to Support QoS in Heterogeneous 4G Wireless Networks George , Jacqueline John; Mustafa , Nada Abdalla Call admission control (CAC) is one of the basic mechanisms for ensuring high quality of service (QoS) offered to the user in Wireless Heterogeneous Networks (HetNet). Based on the available network resources, it estimates the impact of accepting or blocking a new session request. Many CAC algorithms have been proposed in the literature but they were all limited by the available bandwidth. This paper analyses the bandwidth adaptation technique for the Adaptive Joint CAC (AJCAC) algorithm; it is proposed as a solution for congestion; where the AJCAC algorithm degrades the bandwidth of some ongoing users to make room for new incoming ones. A restoration process must take place when the network is underutilized; where the algorithm restores the maximum bandwidth service to the degraded users. In this paper the bandwidth degradation process was investigated and evaluated using a system-level MatLab simulation. The results showed that as the degradation in the bandwidth increases the adaption required in the network increases. On the other hand, degradation in the QoS results in a decrease in the blocking probability. article 2015-01-01T00:00:00Z https://repository.sustech.edu/handle/123456789/16605 Performance of Dyeing and Printing of Polyester / Viscose Yarns Blends for Clothing Use Salim, Hashim Ali Mohamed; Karsany, Elfadil Mahmoud Mohamed This study highlights the effects of the dyeing and printing processes on the tensile strength of blended suiting fabrics (65% polyester : 35% viscose) as compared to grey blended fabrics. The obtained results showed negative effects of dying and printing applications on the strength of the produced fabrics. Also, there were positive effects of dying and printing applications on the elasticity of produced fabrics. The strength of the printed fabric along the warp direction was found to be greater than that of the dyed. As well the strength of the dyed fabric along the weft direction was found to be greater than that of the printed. It was found that the elongation of the printed fabric along the warp direction was greater than that of the dyed. article 2015-01-01T00:00:00Z