Renewable energy-based hybrid power systems are being increasingly deployed across the globe to reduce carbon emissions. The system frequency and tie-line tend fluctuate due operating conditions. These fluctuations can be maintained within desired limits using optimally designed controllers. In this article, recently developed improved squirrel search algorithm (ISSA) is used tune parameters of...

The development of photovoltaic (PV) power forecast technology that is accurate utmost importance for ensuring the reliability and cost-effective functioning system. However, meteorological factors make solar energy have strong intermittent random fluctuation characteristics, which brings challenges to prediction. This work proposes, a new ultra-short-term PV prediction using an improved sparro...

BACKGROUND AND STUDY AIMS The use of a transcolonic approach for natural orifice transluminal endoscopic surgery (NOTES) offers relevant advantages compared with a transgastric procedure. However both techniques are still limited by specific shortcomings that need to be resolved before the transluminal approach can be translated to human applications. In this article we describe an innovative m...

The purpose of this paper is presenting 2 examples using English to teach history and economic subjects in universities colleges. Another goal study that we aim enhance teaching quality schools, colleges through case methods which can help students expand discussion via open mind method. Al-Issa (2006) stated for five decades there an important international activity, language (ELT), became a b...

R. O. Shittu, L. O. Odeigah, B. A. Issa, G. T. Olanrewaju, A. O. Mahmoud, M. A. Sanni Department of Family Medicine, Kwara State Specialist Hospital, Sobi, Ilorin, Nigeria Department of Family Medicine, University of Ilorin Teaching Hospital, Ilorin, Nigeria Department of Behavioural Sciences, University of Ilorin Teaching Hospital, Ilorin, Nigerias Department of Ophthalmology, University of Il...

Obtaining the core temperature of cable joint is vital to ensure safe operation modern power system with integration. To improve speed and accuracy inversion, this study proposed a non-embedded inversion method named uniform manifold approximation projection (UMAP) improved sparrow search algorithm (ISSA) optimized back propagation neural network (BPNN). Firstly, UMAP used reduce feature dimens...

In recent decades, significant attention has been paid to heavy metal contamination as a dangerous environmental problem because of the toxicity, abundance, persistence and bioaccumulation these elements (Chen et al., 2016,) (Islam 2017 ) (Jin 2019). general, state environment is evaluated by total concentration metals (Kanda 2018). The riverine sediments are considered main basins for various ...