47 results for “B. F. Yousif”

Research ArticleOpen accessIn the author namesSufficient Descent Condition of the Polak-Ribière-Polyak (PRP) Conjugate Gradient Method without Line SearchAbdelrahman A., KH. I. Osman, Osman O.O. Yousif et al.Nonlinear conjugate gradient methods for unconstrained optimization problems are used in many aspects of theoretical and applied sciences. They are iterative methods, so at any iteration a step length is computed using a method called line search. In most cases, the sufficient descent condition plays an important role to prove the global convergence of a conjugate gradient method. Due to … …Journal of Mathematics and Statistics, Vol. 18, Issue 1 · 14 Mar 2022 · 6,365 accessesView PDF Cite

Research ArticleOpen accessIn the author namesTribological Performance of Materials Under Bio-Three Body AbrasionJasem G. Alotaibi, Ako K. Omer, Nbhan D Salih, Belal F. YousifThis study aims to investigate the effects of seed grinding process on the tribological characteristics of components in agricultural machines. The objective is to conduct the the effect of third body presence such as seeds on the tribological behavior of agriculture machines and evaluate the fracture mechanism of the seeds under three body abrasion loading conditions. The work consists of … …American Journal of Applied Sciences, Vol. 17, Issue 1 · 14 Jul 2020 · 7,182 accessesView PDF Cite

Research ArticleOpen accessIn the author namesEffect of Fibre Content on Compressive and Flexural Properties of Coconut Fibre Reinforced Epoxy CompositesJasem G. Alotaibi, Ayedh Eid Alajmi, Belal F. Yousif, Nbhan D. SalihCoconut fibre reinforced polymer composites are gaining popularity in the field of engineering due to the many benefits that come with them such as low cost of production, easy fabrication, enhanced strength compared to other polymer composites. Of late, there has been an increase in the use of composites that are naturally based because they have many benefits. In line … …American Journal of Applied Sciences, Vol. 17, Issue 1 · 20 Jun 2020 · 8,037 accessesView PDF Cite

Research ArticleOpen accessIn the author namesA Robust Modification of Hestenes–Stiefel Conjugate Gradient Method with Strong Wolfe Line SearchAwad Abdelrahman, Osman O.O. Yousif, Khalid I. OsmanNonlinear Conjugate Gradient (CG) methods are extensively used for solving large-scale unconstrained optimization problems. Numerous of studies constructed scales and modifications have been conducted recently to improve (CG) methods. In this paper, a simple modified by its conjugate gradient method was proposed. In addition to, established global convergence property and sufficient descent condition, under Strong Wolfe line search. Numerical result … …Journal of Mathematics and Statistics, Vol. 16, Issue 1 · 14 May 2020 · 6,747 accessesView PDF Cite

Research ArticleOpen accessIn the author namesSensing the Hydrogeomorphology and Palaeohydrologic Features of Mars Planet with Inference from the Egyptian Desert: An Insight from Satellite ImagesMohamed YousifThe water access in any planet of the universe can be considered a crucial evidence for life existence. The study of Mars has special importance where it has a complex preserved geological record of a time period longer than on Earth. Many regions of Mars planet are subjected to observations through the obtained satellite images in comparison to similar areas … …Space Science International, Vol. 4, Issue 1 · 27 Apr 2020 · 13,203 accessesView PDF Cite

Research ArticleOpen accessIn the author namesOccurrence of Antibiotic Resistant C. jejuni and E. coli in Wild Birds, Chickens, Environment and Humans from Orang Asli Villages in Sungai Siput, Perak, MalaysiaIbrahim Mohamed Mohamed-Yousif, Jalila Abu, Saleha Abdul-Aziz et al.In developing countries, Escherichia coli and Campylobacter jejuni were found to be the prominent bacterial causes of gastroenteritis in human gastroenteritis, and they also showed an increased trend towards antibiotic resistance. Thus, the study aimed to determine the occurrence of E. coli and C. jejuni in wild birds, chickens, human and environment in villages in Perak and to determine the … …American Journal of Animal and Veterinary Sciences, Vol. 14, Issue 3 · 5 Aug 2019 · 8,914 accessesView PDF Cite

Research ArticleOpen accessIn the author namesEnhancement of Arabic Text Classification Using Semantic Relations of Arabic WordNetSuhad A. Yousif, Venus W. Samawi, Islam Elkabani, Rached ZantoutArabic text classification methods have emerged as a natural result of the existence of a massive amount of varied textual information (written in Arabic language) on the web. In most text classification processes, feature selection is crucial task since it highly affects the classification accuracy. Generally, two types of features could be used: Statistical based features and semantic and concept … …Journal of Computer Science, Vol. 11, Issue 3 · 15 Apr 2015 · 8,071 accessesView PDF Cite

Research ArticleOpen accessIn the author namesA Deoxyribonucleic Acid Compression Algorithm Using Auto-Regression and Swarm IntelligenceWalid Aly, Basheer Yousif, Bassem ZohdyDNA compression challenge has become a major task for many researchers as a result of exponential increase of produced DNA sequences in gene databases; in this research we attempt to solve the DNA compression challenge by developing a lossless compression algorithm. The proposed algorithm works in horizontal mode using a substitutional-statistical technique which is based on Auto Regression modeling (AR), … …Journal of Computer Science, Vol. 9, Issue 6 · 30 May 2013 · 6,734 accessesView PDF Cite