د. يوسف عمران قدورة هو احد اعضاء هيئة التدريس بقسم هندسة الحاسوب بكلية الهندسة - جامعة طرابلس بدء العمل بالجامعة سنة 2004 كمساعد محاضر وتحصل على درجة استاذ مساعد سنة 2016. يقوم بتدريس عدة مقرارات بالقسم وله العديد من المنشورات العلمية في مجال تخصصه

منشورات مختارة

بعض المنشورات التي تم نشرها في كلية الهندسة

Mixed Curved Finite Strip Analysis of Cylindrical Shells Using Spline Function

Abstract In this thesis, the formulation of curved mixed finite strip element for cylindrical shells was developed utilizing the cubic –B3 spline function .Which is referred to in this thesis as a mixed finite strip method.The curved shell element is divided into a number of longitudinal curved strips and each strip element has two nodal line with four knot amended splines in addition to the existing of interference between the first and last ends amended splines in the whole three elementals .At each nodal line and each knot six degree of freedom in the form of three displacement components and three Moments or stress couples .These formulations are applied through selected two types of cylindrical shell roofs , which are circular cylindrical roofs and north light roofs.A software is developed to validate results and it can be used to handle one of boundary condition (simple- simple). The results obtained from the numerical formulation were compared with the analytical solution, where the accuracy and the convergence results were studied for different problems.
وداد إمحمد الصالحي (2010)

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Analysis of Saharan Sand Abrasion of CSP Collector Surfaces

Abstract Many of the concentrating solar power (CSP) systems are expected be installed in desert locations where lack of water and sand storms might be an issue. The solar reflectors are considered to be among the main effective components. The negative effects of the harsh weather conditions, including sand storms of the desert might have strong influence on the reflector properties, leading to a decrease in the thermal performance of such solar system. This thesis studies the sand storm influence on solar reflector surfaces, where two different types of Libyan sands were considered and taken from sites suitable for the installation of CSP. These sands have different shapes, sizes and chemical compositions. Sand "A" has particle sizes that vary from 0.025 to 0.355mm, while Sand "B" has particle sizes in the range of 0.124-0.479 mm. An erosion rig was designed and built at Cranfield University, UK. the tests were conducted under different simulated sand storm conditions for both sand samples. The results have shown that Sand "A" has more severe influence than Sand "B" because the smaller particles of Sand "A" help the spread out over a larger surface area of the reflector. The higher sand storm speed has more strong impact influence, while increasing the mass quantity results in less consequences. The reflectivity of the un-cleaned surface drops by 5% in case of using Sand "A" and by 7% in case of Sand "B", both at storm speed of 21m/s with specific sand mass of 18g/m3.Sand storms with the speed exceeding 6 m/s, generate sand impact on the reflector surface causing degradation to the surface, while storms with speeds less than 6 m/s, result in wakes of suspended small particles as a consequence of the transport mechanism in the atmosphere. Sealing simulation and cleaning process, using Ultrasonic Cleaner Model, show that sand "B" makes a loss of about 3% of the surface reflectivity, due to the salt-chemical composition leading to create spots and marks on the reflector surface. However, Sand "A" has recorded no chemical reaction. Sand storm history should be taken seriously, reflector surface materials should be suitable for the sites, and cleaning operations should be considered.
عصام ميلاد اندايا (2015)

Publisher's website

Enhanced Transmit Antenna Selection Using OSTBC Scheme with SVD-Based Hybrid Precoding for 5G Millimeter-wave Communications

Transmit Antenna Selection using Orthogonal Space-Time Block Codes (TAS-OSTBC) aided Millimeter-wave (mmWave) communications is proposed in this paper. The TAS transmitter is characterized by a lower number of Radio Frequency (RF) chains than the number of transmit antennas, hence it is capable of reducing both the energy consumption as well as the transmitter cost. The proposed scheme combines TAS-OSTBC system with Hybrid Analog-Digital Beamforming for 60 GHz mmWave communications and using Hadamard transform. The computer simulation results demonstrate that the TAS-OSTBC scheme with fully digital SVD-based precoding has better Bit Error Rate (BER) performance than that of the conventional TAS system with OSTBC scheme. Furthermore, the error performance is significantly improved by applying Uniform Linear Array (ULA) antennas which improve the system performance as the number of array elements increases due to providing a beamforming gain. It is also found that the BER performance is further improved by applying Hadamard transform with an SNR improvement of about 3dB over the conventional systems without using Hadamard transform.
Taissir Y. Elganimi, Mohammed S. Alshawish, Moustafa M. Abdalla(4-2019)

Publisher's website

اطلع على المزيد

المجلات العلمية

بعض المجلات العلمية التي تصدر عن كلية الهندسة

كلية الهندسة في صور

الالبومات الخاصة بفعاليات كلية الهندسة

كلية الهندسة

المؤتمر الليبي الدولي لتقنيات المعلومات والاتصالات

منتدى ليبيا للتعليم والتدريب

كلية الهندسة

حول كلية الهندسة

حقائق حول كلية الهندسة

نفتخر بما نقدمه للمجتمع والعالم

المنشورات العلمية

هيئة التدريس

الطلبة

الخريجون

أخبار كلية الهندسة

البرامج الدراسية

بكالوريوس في هندسة التحكم و الأتمتة

بكالوريوس هندسة الحاسوب

ماجستير هندسة حاسوب

من يعمل بـكلية الهندسة

د. يوسف عمران رمضان قدورة

منشورات مختارة

بعض المنشورات التي تم نشرها في كلية الهندسة

Mixed Curved Finite Strip Analysis of Cylindrical Shells Using Spline Function

Analysis of Saharan Sand Abrasion of CSP Collector Surfaces

Enhanced Transmit Antenna Selection Using OSTBC Scheme with SVD-Based Hybrid Precoding for 5G Millimeter-wave Communications

المجلات العلمية

بعض المجلات العلمية التي تصدر عن كلية الهندسة

كلية الهندسة

كلية الهندسة جامعة طرابلس

كلية الهندسة

كلية الهندسة جامعة طرابلس

كلية الهندسة في صور

الالبومات الخاصة بفعاليات كلية الهندسة

مناقشة ماجستير لذوي الاحتياجات الخاصة

حفل تكريم ووفاء

تكريم الطلاب المتفوقين بكلية الهندسة 2022

منتدى ليبيا للتعليم والتدريب