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Salah Turki ALRAWASHDEH(Salah Turki ALRAWASHDEH ),Ahmad Mahmoud ABKAL(Ahmad Mahmoud ABKAL ),Ali Abdelh Fattah ZYADAT(Ali Abdelh Fattah ZYADAT ) 한국유통과학회 2023 The Journal of Asian Finance, Economics and Busine Vol.10 No.1
The study aimed to study the effect of the inflation rate, the real domestic product, the interbank lending interest rate, and the total deposits on credit facilities in Jordan for 2012−2021 through quarterly data. The study adopted the ARDL model. The study used the time series analysis method, as the study tests the stationarity of the time series. The results showed that the impact of inflation on the total credit facilities was negative. In contrast, the impact of each of the total deposits, real GDP, and the interest rate of interbank loans on the total credit facilities was positive and significant. The study recommended the need for the banking sector in Jordan to develop risk management mechanisms in a way that allows it to adapt to economic cycles and crises by conducting stress tests and developing scenarios that ensure the formation of sufficient provisions to meet emergencies. The study also recommended that the macroeconomic policy should be based on creating a stable macroeconomic environment that allows the efficient employment of resources in all economic sectors in a way that achieves high economic growth rates, which contributes to the promotion of economic recovery and is reflected in income. Hence, individuals have a greater ability to repay loans.
Development of low concentrated solar photovoltaic system with lead acid battery as storage device
Salah Ud-Din Khan,Zeyad Ammar Almutairi,Omer Salah Al-Zaid,Shahab Ud-Din Khan 한국물리학회 2020 Current Applied Physics Vol.20 No.4
Energy storage system powered by renewable energies is a viable option to meet energy requirement without addition of carbon footprints to the environment. This study involves development of theoretical and computational models for a solar photovoltaic (PV) system coupled with a lead acid battery. The study commenced with selection of most appropriate lead acid battery and PV system for installation in a representative location in Riyadh, Kingdom of Saudi Arabia. Various technical and economic parameters were assessed and calculated by computational approach. The optimized lead acid battery was integrated with low concentration solar PV panels (CPV) followed by a feasibility study. Theoretical model was developed for the integrated system to calculate various parameters of the CPV and lead acid battery. Technical and economic assessment of this coupled unit was calculated using a theoretical approach. The developed model was then subjected to computational approach for verification and validation analysis of the integrated system. The detailed assessment of batteries and integrated system show the applicability of this system in Riyadh region. The research will be extended to develop energy storage systems for remote areas using lead acid batteries.
Electronic structure of p-type transparent conducting oxide CuAlO2
Salah Mohamed,Yoon Joonseok,El-Desoky Mohamed M.,Hussain Zahid,Ju Honglyoul,Mo Sung-Kwan 한국물리학회 2022 Current Applied Physics Vol.39 No.-
Copper-based delafossite oxides are excellent candidates for the p-type transparent conducting oxide (TCO), which is essential in realizing transparent semiconductor applications. Using angle-resolved photoemission spectroscopy (ARPES), we report the low-energy electronic structure of CuAlO2. We found that the band structure near the valence band top is characterized by hole bands with their maxima along the Brillouin zone boundary. Furthermore, the effective masses along the Γ–M and Γ–K directions were found to be (0.6 ± 0.1) m0 and (0.9 ± 0.1) m0, respectively, which impose an important benchmark against the existing band calculations.
Salah Chyad Kadhim,Hussein Falah Hasan,Hudaa Nadhim Khalbas 대한산업공학회 2020 Industrial Engineeering & Management Systems Vol.19 No.4
The main purpose of this research is to analyze the effect of business diversity on the relation between profit sustainability, real earnings management and commercial credit in companies of Securities and Exchange Organization of Iraq. In this research, dependent variable is business credit which is calculated through dividing trade payable accounts of the company on the total asset (Petersen and Rajan, 1997; Giannetti et al., 2011) the independent variables are profit sustainability and real earnings management; in order to calculate profit sustainability the Kormendi and Lipemodel has been utilized while for calculating real earnings management the model that already has been used. The research data has been gathered by using a sample made up of 35 companies during 2011-2016. The research hypotheses were analyzed by hybrid data in SATA14 application. The results indicate that the modular effect of business diversity on the relation of profit sustainability and business credit is positive and meaningful, and the modular effect of business credit on the relation between real profit management and business credit is not meaningful.
Salah A. M. Elmoselhy,Waleed F. Faris,Hesham A. Rakha 대한기계학회 2016 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.30 No.10
Supercharged diesel engines are a key element in diesel powertrains that have been extensively modelled yet often without explainable mathematical trends. The present paper demonstrates the analytical modelling of in-cylinder gas speed dynamics and engine brake power. These analytical models provide explainable mathematical trends. In addition, they provide gear-shifting-based modeling because the model parameters can be adjusted to reflect different driving conditions without the need for gathering field data. An unprecedented sensitivity analysis was conducted on these developed models for simplifying them. They were validated using experimental data and the relative error of the developed model of the in-cylinder gas speed dynamics was 9.8%. The study demonstrates with 73% coefficient of determination that the average percentage of deviation of the simulated results from the corresponding field data on the engine brake power is 6.9%. The relative error of the developed model of the engine brake power is 7%. These values of relative error are an order of magnitude of deviation that is less than that of widely recognized models in the field of vehicle powertrain modeling such as the CMEM and GT-Power. These analytically developed models serve as widely valid models. Having addressed and corrected flaws in the corresponding models, such as the model of the in-cylinder gas speed dynamics presented in a key reference in this research area, these developed models can help in better analyzing and assessing the performance of diesel engines.
Salah, Muhja,Tayebi, Lobat,Moharamzadeh, Keyvan,Naini, Farhad B. Korean Association of Maxillofacial Plastic and Re 2020 Maxillofacial Plastic Reconstructive Surgery Vol.42 No.-
Background: Bone grafting has been considered the gold standard for hard tissue reconstructive surgery and is widely used for large mandibular defect reconstruction. However, the midface encompasses delicate structures that are surrounded by a complex bone architecture, which makes bone grafting using traditional methods very challenging. Three-dimensional (3D) bioprinting is a developing technology that is derived from the evolution of additive manufacturing. It enables precise development of a scaffold from different available biomaterials that mimic the shape, size, and dimension of a defect without relying only on the surgeon's skills and capabilities, and subsequently, may enhance surgical outcomes and, in turn, patient satisfaction and quality of life. Review: This review summarizes different biomaterial classes that can be used in 3D bioprinters as bioinks to fabricate bone scaffolds, including polymers, bioceramics, and composites. It also describes the advantages and limitations of the three currently used 3D bioprinting technologies: inkjet bioprinting, micro-extrusion, and laserassisted bioprinting. Conclusions: Although 3D bioprinting technology is still in its infancy and requires further development and optimization both in biomaterials and techniques, it offers great promise and potential for facial reconstruction with improved outcome.
Ultrasound-assisted capillary microreactor for aqueous–organic multiphase reactions
Salah Aljbour,Tomohiko Tagawa,Hiroshi Yamada 한국공업화학회 2009 Journal of Industrial and Engineering Chemistry Vol.15 No.6
A simple capillary microreactor was tested as a potential reactor to carry out a multiphase reaction. The hydrolysis of benzyl chloride in a biphasic system was investigated. The capillary microreactor was irradiated by 28 kHz ultrasound at different temperatures, capillary lengths and phase flow rates. It was found that the combination of microreactor technique and the ultrasound irradiation provides a promising protocol for process intensification. Under sonication conditions, higher conversions were obtained compared to silent conditions. The presence of ultrasound has affected the multiphase slug size and promoted better internal circulation within these slugs. Similar reactivities were noticed at higher temperature for both sonication and silent conditions.