Numerical simulations have shown that low reflectivity’s at the surface of the planar cell coated with a single layer can be obtained. For example, for single coatings of Si3N4 and HfO2 materials, reflectivity values of around 3% and 2% respectively are obtained. Structures with...
Open access
Research Article10.9734/psij/2022/v26i8759
A three-dimensional modeling study of a polycrystalline silicon mono-facet photocell under multi-spectral illumination is presented highlighting the effect of irradiation energy (Φ) and damage coefficient (Kl) on the macroscopic parameters. Using the junction recombination rate S...
Open access
Research Article10.9734/psij/2022/v26i8760
Quantum cryptography is a science that relies on the use of a protocol designed to exploit quantum mechanical phenomena to achieve the secrecy of cryptographic keys. This work aimed to generate a quantum key based on polarization-entangled photon pairs; to eliminate the error by...
Open access
Research Article10.9734/psij/2022/v26i8761
The general theory of relativity has allowed a better understanding of the structure of universe. One of the fundamentals problems in the general relativity is finding exact solutions of the Einstein-Maxwell field equations. Some solutions found applications in astrophysics, cosm...
Open access
Research Article10.9734/psij/2022/v26i9-10762
Magnetoelectric materials attract interest due to coupling between the magnetic and dipol moments, which provides additional degrees of freedom in magnetoelectric device design and nanotechnological applications. Despite intensive theoretical and experimental studies already carr...
Open access
Research Article10.9734/psij/2022/v26i9-10763
Niger, a Sahelian country, is known for its extreme climatic conditions and its wealth of solar deposits. In Niger, the average duration of sunshine is 8.5 hours per day and its average level is estimated at about 5 to 7 kW/m² per day. However, the rate of access to electricity i...
Open access
Research Article10.9734/psij/2022/v26i9-10764
This article performs a synthesis of two disruptive theories that seek to describe the ultimate nature of the universe. The first deals with the physical continuity of the expansion of the four-dimensional cosmic woof. The second describes the expansion energy of the continuum wi...
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Research Article10.9734/psij/2022/v26i9-10765
Several wastes can be recycled and used in the field of civil engineering. The incorporation of glass waste into the concrete matrix allows us to sustain and preserve natural resources. The aim of this study is to efficiently recycle glass waste from photovoltaic solar modules, f...
Open access
Research Article10.9734/psij/2022/v26i9-10766
Astronomical findings, particularly from the last decades of research, have confirmed that our universe either must contain large amounts of an unknown form of matter, called dark matter, or the laws of gravity must be influenced by undiscovered variables. Although both of the tw...
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Research Article10.9734/psij/2022/v26i9-10768
A numerical modeling of the effect of the ratio of thermal conductivity on the thin film condensation in forced convection in a canal whose walls are covered with a porous material is presented. In this work, the generalized Darcy-Brinkman-Forchheimer (DBF) equations in the porou...
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Research Article10.9734/psij/2022/v26i9-10769
This study evaluates the radon concentrations in public places and private residences with different altitudes in selected locations in Delta State. These measurements were carried out using a professional radon monitoring instrument (Alpha GUARD PQ2000 PRO) and a geographical po...
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Research Article10.9734/psij/2022/v26i11-12770
Bell's Palsy is one of communal disease of effected to seventh cranial nerve that causes paralysis of one or two side of the face which occur within (72 hours), the etiology unknown but different causes such as psychological, physical condition, viral infection, ischemia of blood...
Open access
Research Article10.9734/psij/2022/v26i11-12771
We studied bipolar junction transistors. We will see that the bipolar junction transistor, often referred to by its short name, transistor, actually functions as a current-controlled current source. We will also see that in the current generation of bipolar junction transistors,...
Open access
Research Article10.9734/psij/2022/v26i11-12772
Malaria is the most widespread disease in Africa and developing countries which has a negative effect on everyday life and causes thousands death each year. To find new, more precise, and less expensive diagnostic methods, an increasing number of studies are needed. In order to r...
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Research Article10.9734/psij/2022/v26i11-12773
The interpretation of single-photon double slit Wheeler's delayed choice experiment leads to a weird inference: "what observer does now can change what happened in the past". It subverts our cognitions. Other interpretations are also in dispute. I try to find another possible way...
Open access
Research Article10.9734/psij/2022/v26i11-12774