Optoelectronic devices, widely used in high energy and nuclear physics applications, suffer severe radiation damage that leads to degradations in its efficiency. In this paper, the influence of gamma radiation (137Ce source) and beta radiation (90Sr source) on the photoelectric parameters of the Si solar cell, based on the I–V characterization at different irradiation exposer, has been studied. The penetrating radiation produces defects in the base material, may be activated during its lifetime, becoming traps for electron–hole pairs produced optically and, this will, decrease the efficiency of the solar cell. The main objective of the paper is to study and measure changes in the I–V characteristics of solar cells, such as efficienc

There is an interesting potential for the use of GFRP-pultruded profiles in hybrid GFRP-concrete structural elements, either for new constructions or for the rehabilitation of existing structures. This paper provides experimental and numerical investigations on the flexural performance of reinforced concrete (RC) specimens composite with encased pultruded GFRP I-sections. Five simply supported composite beams were tested in this experimental program to investigate the static flexural behavior of encased GFRP beams with high-strength concrete. Besides, the effect of using shear studs to improve the composite interaction between the GFRP beam and concrete as well as the effect of web stiffeners of GFRP were explored. Encasing the GFRP

The Weibull distribution is considered one of the Type-I Generalized Extreme Value (GEV) distribution, and it plays a crucial role in modeling extreme events in various fields, such as hydrology, finance, and environmental sciences. Bayesian methods play a strong, decisive role in estimating the parameters of the GEV distribution due to their ability to incorporate prior knowledge and handle small sample sizes effectively. In this research, we compare several shrinkage Bayesian estimation methods based on the squared error and the linear exponential loss functions. They were adopted and compared by the Monte Carlo simulation method. The performance of these methods is assessed based on their accuracy and computational efficiency in estimati

Pultruded materials made of Fiber-Reinforced Polymer (FRP) come in a broad range of shapes, such as bars, I-sections, C-sections, etc. FRP materials are starting to compete with steel as structural materials owing to their great resistance, low self-weight, and cheap maintenance costs, especially in corrosive conditions. This study aims to evaluate the effectiveness of a novel concrete Composite Column (CC) using Encased I-Section (EIS) as a reinforcement in contrast to traditional steel bars by using Glass Fiber-Reinforced Polymer (GFRP) as I-section (CC-EIS) to evaluate the effectiveness of the hybrid columns which have been built by combining GFRP profiles with concrete columns. To achieve the aims of this study, nine circular co

      تُعد أبرز الإشكاليات التي تثيرها ظاهرة تعدد الجنسية مسألة تعيين القانون الواجب التطبيق على النزاع المشوب بعنصر أجنبي عندما تشير قواعد الإسناد الوطنية فيه إلى تطبيق القانون الشخصي, الأمر الذي ترتب عليه إجتهاد الفقه والقضاء في هذا المجال إلى معايير عدّة يمكن تطبيقها لترجيح أحدى الجنسيات التي يحملها متعدد الجنسية, فضلاً عن موقف التشريعات الوطنية الحديثة التي تبنت بعض ما رجح من هذه المعايير, ويمكن تج

الآت الاطفال الموسيقية الشعبية والتقليدية في التربية

يعد الباعث الدنيء من أدق المؤشرات التي تكشف عن مقدار الخطورة الاجرامية التي تنطوي عليه شخصية مرتكب الجريمة والتي على اساسها يقدر الجزاء ، والاصل ان الباعث الدنيء لاتأثير له على وجود الجريمة ولكنه يؤثر في مقدار العقوبة ، وللباعث الدنيء مجموعة من الخصائص والتي تكفل تميزه عن غيره من الحالات التي يكون لها دلالة على خطورة مرتكب الجريمة ، وللباعث الدنيء خصوصية في بعض الجرائم المعاصرة كونه يدخل في تكوين القصد ا