Browsing by Author "Ruhani, Behrooz"

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Citation Count: 0
A comprehensive review of a building-integrated photovoltaic system (BIPV)
(Pergamon-elsevier Science Ltd, 2024) Chen, Lin; Baghoolizadeh, Mohammadreza; Basem, Ali; Ali, Sadek Habib; Ruhani, Behrooz; Sultan, Abbas J.; Alizadeh, As'ad
Beginning in the early 1990s, photovoltaic (PV) technologies were integrated with building envelopes to reduce peak electrical load and fulfill building energy demands. The PV technologies are referred to be building- integrated (BI) PV systems when they are either incorporated or mounted to the envelopes. BIPV system groupings include BIPV roofs, BIPV facades, BIPV windows, and BIPV shadings. In this study, the technology division of photovoltaic cells and the BIPV system groupings are discussed and investigated. This evaluation addresses several variables that impact the BIPV system applications' functionality and design. The tilt angle of PV shading devices, transmittance, window-to-wall ratio (WWR), and glass orientation are the parameters that have been found. Researchers will find this review paper useful in constructing the BIPV system since it offers opportunities for future study.
Citation Count: 0
Mechanical behavior of baghdadite-polycaprolactone-graphene nanocomposite for optimization of the bone treatment process in medical applications using molecular dynamics simulation
(Elsevier, 2024) Salahshour, Soheıl; Basem, Ali; Aljaafari, Haydar A. S.; Hanoon, Zahraa A.; Jumaah, Shams Dheyaa; Salahshour, Soheil; Emamii, Nafiseh
Baghdadite is a monoclinic structure that is frequently used in biomedical applications and is a member of the calcium silicate zirconium group. In actual applications, the mechanical properties (MPs) of this atomic structure are of significant significance, among its other properties. Vacancy defects are one of the atomic phenomena that can affect the MP of Baghdadite. Molecular dynamic (MD) simulations were used to define the MP of Baghdaditepolycaprolactone-graphene nanocomposite (BN) in the presence of vacancy defects. The results of MD simulations show the excellent physical stability of BN with vacancy defects. Technically speaking, appropriate settings in the MD simulation box led to this result. Additionally, various parameters, including the stress-strain curve, Young's modulus (YM), and ultimate strength (US), were reported to explain the mechanical development of BN. In this simulation, vacancy defects to the initial compound at ratios ranging from 1 % to 10 % were introduced. Consequently, the YM of samples varied from 210.87 to 182.89 MPa, and the US decreased by 160.27 MPa. The calculated results show that the vacancy defects significantly reduced the mechanical strength of BN.