Planning and dimensioning process of a multi-service network WCDMA should consider the whole para... more Planning and dimensioning process of a multi-service network WCDMA should consider the whole parameters characterising the radio cell. Among these, we are interested in the required total BTS power and maximum capacity supported by the cell in the downlink direction. This direction requires more radio resources, thus it is more delicate to optimize. In this context, we express these two parameters as a function of the quality of service (QoS) received at the level of a mobile station activating a certain service (voice, video, etc) and as a function of various radio interface problems such as: multipath, neighbouring cells effect, pathloss, thermal noise due to equipment, etc. Keywords— WCDMA, downlink, multi-service network, capacity estimation, interferences, total power BTS estimation.
Admission control of a WCDMA network is a very important task which an operator must take into ac... more Admission control of a WCDMA network is a very important task which an operator must take into account in order to avoid the instability of mobile network due to the increasing of interference level when a new mobile station appears in the cell. It is based on the target load factor value fixed in the dimensioning phase. The numerical results
International Journal of Medicine and Surgery, 2014
Introduction : Behcet’s disease is a systemic disorder linked to occlusive vasculitis and of a re... more Introduction : Behcet’s disease is a systemic disorder linked to occlusive vasculitis and of a relatively unknown pathogenesis. Ocular manifestations of the disease mainly comprise uveitis in 60-80% of cases, followed by retinal vasculitis and then retinal vein occlusion.The aim of this study is to analyze ocular manifestations of patients with confirmed Behcet’s disease, their complications, treatment and evolution in our tertiary care unit of Morocco. Patients and methods : It is a retrospective study of patients with confirmed Behcet along with ocular manifestations, hospitalized in the department of ophthalmology at the teaching hospital of Rabat from Juin 2002 to June 2012. Results: A total of 133 patients were included in the study, being 29,5 years-old on average. Visual acuity is very low before treatment: 56% had less than 1/10. Ocular manifestations included mainly uveitis with 89.96%, followed by retinal vasculitis 73.6% and maculopathy 22%. The percentage of the eyes of ...
International Journal of Medicine and Surgery, 2014
Introduction: Malignant tumors in children are rare but serious conditions as they can impair fun... more Introduction: Malignant tumors in children are rare but serious conditions as they can impair function and survival. Tumors in pediatric patients can originate from the orbit. Rarely, the tumor spreads to the adjacent areas and occasionally it may metastasize. Objectives: The objective of this study is to present the common symptoms and the clinical and radiological characteristics of most common malignant orbital tumors in children. Materials and methods: Through the discussion of 4 clinical cases of children presenting with exophthalmos due to a tumor, the authors highlight that clinical symptoms are usually less specific, and that imaging has an important role in diagnosis, determining location, and local and regional expansion of the tumor in order to find the adequate therapy. Results: Our patients' ages ranged from 2 to 5 years. The revealing sign in each case was a unilateral exophthalmos due to a tumor, which could only be reduced minimally or not at all. Its evolution h...
Planning and dimensioning process of a multi-service network WCDMA should consider the whole para... more Planning and dimensioning process of a multi-service network WCDMA should consider the whole parameters characterising the radio cell. Among these, we are interested in the required total BTS power and maximum capacity supported by the cell in the downlink direction. This direction requires more radio resources, thus it is more delicate to optimize. In this context, we express these two parameters as a function of the quality of service (QoS) received at the level of a mobile station activating a certain service (voice, video, etc) and as a function of various radio interface problems such as: multipath, neighbouring cells effect, pathloss, thermal noise due to equipment, etc. Keywords— WCDMA, downlink, multi-service network, capacity estimation, interferences, total power BTS estimation.
Admission control of a WCDMA network is a very important task which an operator must take into ac... more Admission control of a WCDMA network is a very important task which an operator must take into account in order to avoid the instability of mobile network due to the increasing of interference level when a new mobile station appears in the cell. It is based on the target load factor value fixed in the dimensioning phase. The numerical results
International Journal of Medicine and Surgery, 2014
Introduction : Behcet’s disease is a systemic disorder linked to occlusive vasculitis and of a re... more Introduction : Behcet’s disease is a systemic disorder linked to occlusive vasculitis and of a relatively unknown pathogenesis. Ocular manifestations of the disease mainly comprise uveitis in 60-80% of cases, followed by retinal vasculitis and then retinal vein occlusion.The aim of this study is to analyze ocular manifestations of patients with confirmed Behcet’s disease, their complications, treatment and evolution in our tertiary care unit of Morocco. Patients and methods : It is a retrospective study of patients with confirmed Behcet along with ocular manifestations, hospitalized in the department of ophthalmology at the teaching hospital of Rabat from Juin 2002 to June 2012. Results: A total of 133 patients were included in the study, being 29,5 years-old on average. Visual acuity is very low before treatment: 56% had less than 1/10. Ocular manifestations included mainly uveitis with 89.96%, followed by retinal vasculitis 73.6% and maculopathy 22%. The percentage of the eyes of ...
International Journal of Medicine and Surgery, 2014
Introduction: Malignant tumors in children are rare but serious conditions as they can impair fun... more Introduction: Malignant tumors in children are rare but serious conditions as they can impair function and survival. Tumors in pediatric patients can originate from the orbit. Rarely, the tumor spreads to the adjacent areas and occasionally it may metastasize. Objectives: The objective of this study is to present the common symptoms and the clinical and radiological characteristics of most common malignant orbital tumors in children. Materials and methods: Through the discussion of 4 clinical cases of children presenting with exophthalmos due to a tumor, the authors highlight that clinical symptoms are usually less specific, and that imaging has an important role in diagnosis, determining location, and local and regional expansion of the tumor in order to find the adequate therapy. Results: Our patients' ages ranged from 2 to 5 years. The revealing sign in each case was a unilateral exophthalmos due to a tumor, which could only be reduced minimally or not at all. Its evolution h...
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