
Metin AktaşNatural Sciences Institute, Ankara Yıldırım Beyazıt University · Energy Systems Enginering Department
Metin Aktaş
Doctor of Philosophy
About
27
Publications
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Introduction
Metin Aktaş currently works at the Energy Systems Enginering Department, Natural Sciences Institute, Ankara Yıldırım Beyazıt University, Ankara, Turkey.
Metin does research in Quantum, Computational Physics, Cosmology, Theoretical and Applied Physics. Dr. Aktas is also interested in studying of engineering applications. Their most recent publication is 'A novel SUSY energy bound-states treatment of the Klein-Gordon equation with PT-symmetric and q-deformed parameter Hulthén potential'.
Publications
Publications (27)
Designing and manufacturing of CubeSats have a rapid growing interest lately as they can serve in a wide range of space missions. To ensure that they are safe, stable, and functional in harsh space environment, thermal studies are very important. New design approaches have been introducing to manufacture more efficient and long-lasting satellites,...
Electric energy is used in many aspects of life and the consumption amount of electrical energy has been a significant indicator in terms of industrialization and the development of the counties. Since incorrect and inefficient use of this energy, losses occur in the power system from generation to consumer which means there are serious problems in...
Energy security is a crucial concern for every single country in the World. This issue has become more critical lately due to political and environmental requirements. 27 EU Member States set a goal in EU Green Deal to reach climate neutrality by 2050 and reduce emissions by at least 55% by 2030 and separated a budget of more than €2.1 trillion for...
Thermal management is a challenging engineering problem for CubeSats due to the limited available volumes restricting the thermal control applications. Therefore, performing thermal modelling and analyses of these small satellites is very crucial for applying proper thermal control measures to maintain safe operating conditions in space. Despite th...
Most studies report that dispersing nanoparticles into refrigerants and lubricating oils leads to performance improvements in refrigeration systems, due to improvements in the thermal physics properties of a pure refrigerant, which leads to reduced energy consumption. Using nanoparticles in a refrigeration system is associated with many difficultie...
This study was built on the basis of experimental results from a simple refrigeration system using R134a as a refrigerant. Based on the real dimensions of the system and the experimental results, Ansys fluent software was used to simulate the system to prepare the system to introduce the nanoparticles theoretically. Since the nanoparticle preparati...
This study was built on the basis of an experimental study that was carried out on a simple refrigeration system that works with R134a as a refrigerant, and based on the real dimensions of the system and the experimental results, the Ansys fluent software was used to simulate the system to prepare the system to introduce the nanoparticles theoretic...
In this paper, radiative heat loads on structural panels of small satellites are simulated for various orbital configurations. Thermal management of small satellites are challenging because of their limited available volumes. Satellites in orbits experience not only extreme temperatures but also rapid temperature changes. In order to provide safe o...
There has been increasing interest in satellite design and manufacture. Satellites require complex components that must withstand severe mechanical and thermal conditions. Thermal design of a satellite relies on several dynamic factors. Satellites experience both extreme temperatures and rapid temperature changes. This situation induces high therma...
The purpose of this study is to compare the theoretical and experimental results of (COP), (RC), (HC), and (Win) for a cooling system by using R134a as a refrigerant. The experimental facility has been installed in the lab and experiment was conducted for several days at average temperatures of the evaporator and condenser between (517.5 ∘ C), (28...
In this study, we focus on investigating the exact relativistic bound-state spectra for supersymmetric, PT-supersymmetric and non-Hermitian versions of the q-deformed parameter Hulthén potential. The Hamiltonian hierarchy mechanism, namely the factorization method, is adopted within the framework of SUSYQM. This algebraic approach is used in solvin...
By converting the rectangular basis potential V(x,y) into the form as
V(r)+V(r, phi) described by the pseudo central plus noncentral potential,
particular solutions of the two dimensional Schrodinger equation in plane-polar
coordinates have been carried out through the analytic approaching technique of
the Nikiforov and Uvarov (NUT). Both the exact...
Exact bound state solutions of the Schrödinger equation for generalized noncentral potential are examined by means of the
Nikiforov-Uvarov method. The wavefunctions and the corresponding energy eigenvalues of the system are obtained analytically.
The results examined for the potential are compatible with those obtained by the other methods.
We propose and demonstrate single detector real-time line imaging with up to 1µm resolution at 1 line/50ns capture rate. Experimentally we demonstrate real time line imaging of <25µm particles and patterns such as fingerprints.
The pump to signal RIN transfer in chip-scale silicon Raman amplifiers is investigated in the presence of nonlinear losses. Pump RIN frequency components as high as 1.5 GHz will be transferred to the signal.
The high-index contrast between the silicon core and silica cladding enable low cost chip-scale demonstration of all-optical nonlinear functional devices at relatively low pump powers due to strong optical confinement the in silicon waveguides. So far, broad ranges of applications from Raman lasers to wavelength converters have been presented. This...
Exact solution of Schrödinger equation for the pseudoharmonic potential is obtained for an arbitrary angular momentum. The
energy eigenvalues and corresponding eigenfunctions are calculated by Nikiforov–Uvarov method. Wavefunctions are expressed
in terms of Jacobi polynomials. The energy eigenvalues are calculated numerically for some values of ℓ a...
We deal with the exact solutions of Schrödinger equation characterized by position-dependent effective mass via point canonical
transformations. The Morse, Pöschl-Teller, and Hulthén type potentials are considered, respectively. With the choice of position-dependent
mass forms, exactly solvable target potentials are constructed. Their energy of the...
The supersymmetric solutions of PT-/non-PT-symmetric and non-Hermitian deformed Morse and Pöschl-Teller potentials are obtained by solving the Schrödinger equation. The Hamiltonian hierarchy method is used to get the real energy eigenvalues and corresponding eigenfunctions.
Exact solution of the Schrdinger equation with deformed ring-shaped potential is obtained in the parabolic and spherical coordinates. The Nikiforov–Uvarov method is used in the solution. Eigenfunctions and corresponding energy eigenvalues are calculated analytically. The agreement of our results is good.
We present the exact supersymmetric solution of Schrodinger equation with the Morse, Poschl-Teller and Hulthen potentials by using the Nikiforov-Uvarov method. Eigenfunctions and corresponding energy eigenvalues are calculated for the first six excited states. Results are in good agreement with the ones obtained before.
The supersymmetric solutions of PT-/non-PT-symmetric and non-Hermitian deformed Morse and P\"{o}schl-Teller potentials are obtained by solving the Schr\"{o}dinger equation. The Hamiltonian hierarchy method is used to get the real energy eigenvalues and corresponding eigenfunctions. \newline {PACS:05.20.-y; 05.30.-d; 05.70. Ce; 03.65.-w}\newline {\i...
Supersymmetric solution of PT-/non-PT-symmetric and non-Hermitian Morse
potential is studied to get real and complex-valued energy eigenvalues and
corresponding wave functions. Hamiltonian Hierarchy method is used in the
calculations
In this article exact solutions of a two-electron Schroedinger equation for the Coulomb potential were extended to the Fues-Kratzer-type potential: ({cflx Z}(Ω)/r) + ({cflx A}/r²). The wave function Ψ(r, Ω) is expanded into generalized Laguerre polynomials and hyperspherical harmonics. An analytical expression of two-electron systems is given f...