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JTAP-01.10.2023

Journal of Theoretical and Applied Physics (JTAP)

Editor-in-Chief: Davoud Dorranian, PhD

Online ISSN: 2251-7235

Print ISSN: 2251-7227

Publishes Bimonthly

Multi-lump solutions to the KPI equation with a zero degree of derivation

We construct solutions to the Kadomtsev-Petviashvili equation (KPI) by using an extended Darboux transform. From elementary functions we give a method that provides different types of solutions in terms of wronskians of order N. For a given order, these solutions depend on the degree of summation and the degree of derivation of the generating functions. […]

Multi-lump solutions to the KPI equation with a zero degree of derivation
Improved efficiency of a SiGe thin film solar cell structure using CNT charge collector layer

In this study, a SiGe (Si(1-X) GeX x=0.1) thin film solar cell structure based on the carbon nanotube charge collector (CNT) is investigated. The addition of the carbon nanotube layer to cell structure has been proven to change aspects of its physical characteristics, specifically the efficiency of the solar cell. This means that CNT can […]

Improved efficiency of a SiGe thin film solar cell structure using CNT charge collector layer
Modified Bohm’s criterion in a collisional electronegative plasma having two-temperature non-extensive electrons

Plasma-material interaction has been a subject of interest for the past several decades due to its importance in various fields of research such as film deposition, surface nitriding, plasma etching, plasma reactors at low-pressure conditions etc. During this interaction, the presence of negative ions further plays a vital role to ease defect-free analysis of soft […]

Modified Bohm’s criterion in a collisional electronegative plasma having two-temperature non-extensive electrons
Chemical and pharmaceutical waste disposal with thermal plasma pyrolysis-melting

Thermal plasma treatment is considered as a suitable alternative for the treatment of highly-hazardous wastes such as industrial, radioactive and medical waste. Therefore, a Plasma-Gasification-Melting (PGM) system for treatment of Chemical and Pharmaceutical Wastes (CPW) with a capacity of 1 ton/day is developed using a melting and gasification furnace equipped with two non-transferred thermal plasma […]

Chemical and pharmaceutical waste disposal with thermal plasma pyrolysis-melting
The influence of Hively and Bosch-Hale reactivities on hot ion mode in deuterium/helium-3 fuel

Nowadays, there is much extensive research investigating nuclear fusion reaction with D-3He fuel as one of the most essential advanced fusion fuels. One of the most important quantities in fusion is the reactivity. In this work, with consideration of different temperatures for ion and electron (hot ion mode), we intend to study the effects of […]

The influence of Hively and Bosch-Hale reactivities on hot ion mode in deuterium helium-3 fuel
Bound state solutions and thermal properties of the N-dimensional Schrödinger equation with Varshni plus Woods-Saxon potential via Nikiforov-Uvarov method

We have solved the Schrödinger equation for Varshni plus Woods-Saxon potential in N-dimensions within the framework of Nikiforov-Uvarov method by using Greene-Aldrich approximation scheme to the centrifugal barrier term. We obtained the numerical bound state energies for both physical parameters and some diatomic molecules for various values of screening parameter which characterizes the strength of […]

Bound state solutions and thermal properties of the N-dimensional Schrödinger equation with Varshni plus Woods-Saxon potential via Nikiforov-Uvarov method
On the correspondence principle for the Klein-Gordon and Dirac Equations

We investigate the asymptotic behavior of the solutions to the Klein-Gordon and Dirac equations using the local spatial averaging approach to Bohr’s correspondence principle in the large principal quantum number regime. The procedure is applied in two basic problems in $1+1$-dimensions, the relativistic quantum oscillator and the relativistic particle in a box. In the harmonic […]

On the correspondence principle for the Klein-Gordon and Dirac Equations
Properties of nanoscale copper oxide thin film deposited by plasma focus device

In this study, a 2 kJ plasma focus device of Mather type was employed to grow Copper Oxide (CuO) thin film at room temperature on the glass substrate. The anode of the device was made of Copper alloys. A mixture of oxygen and argon (O2+ Ar) gases was used as the working gas for CuO […]

Properties of nanoscale copper oxide thin film deposited by plasma focus device
Analysis and design of microwave resonant plasma source for Iranian Space Plasma Simulation Chamber

In the present study, the microwave resonant plasma source has been designed to provide the ionosphere like condition inside the Iranian Space Plasma Simulation Chamber (ISPSC). This chamber contains plasma with electron density of 1×105 −1×1010 cm−3 and temperature of 1-5 eV. In order to reach these plasma parameters inside the ISPSC, the plasma source […]

JTAP_Volume 16_Issue 3_Pages 1-6
Mixing rules and equation of effective permittivity of the medium having spherical inclusions in two different orientations of their basal planes for THz radiation emission

In this study, we determine the effective permittivity of a medium in which spherical inclusions are embedded in a host medium whose permittivity is given by ε_h. It is interesting to note that the inclusions are made up of graphite and their basal planes are oriented in two configurations, 1) parallel and, 2) perpendicular to […]

Mixing rules and equation of effective permittivity of the medium having spherical inclusions in two different orientations of their basal planes for THz radiation emission