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Browsing Araştırma Çıktıları / Research Outputs by Subject "Physics"

Now showing items 1-20 of 409

A Batch Adsorber Design for Rhodium Adsorption on Gallic Acid Formaldehyde Resin

Bulut, Emrah (POLISH ACAD SCIENCES INST PHYSICS, 2015)

The adsorption of rhodium (III) ions onto gallic acid formaldehyde resin in a batch adsorber has been studied. Adsorption experiments were carried out by agitating 1 g resin particles with 1000 ml of Rh (III) ion solution ...
A broad analysis of directly and indirectly ionizing radiation interaction parameters of PbF2-CaF2-Bi2O3-B2O3-Cr2O3 glass system

Alzahrani, Jamila S.; Alrowaili, Z. A.; Somaily, H. H.; Alsufyani, Sultan J.; Olarinoye, I. O.; Sriwunkum, Chahkrit; Ben Ahmed, Samia; Tonguc, B. T.; Al-Buriahi, M. S. (2022)

This study presents the shielding parameters for directly and indirectly ionization radiations of PCBBC glasses with the chemical composition: xPbF(2)-(25-x)CaF2-49.8B(2)O(3)-25Bi(2)O(3)-0.2Cr(2)O(3) and coded as PCBBC1-PCBBC4 ...
A Chaotic System with Infinite Equilibria and Its S-Box Constructing Application

Xiong Wang; Akif; Çavuşoğlu, Ünal (MDPI, 2018)

Systems with many equilibrium points have attracted considerable interest recently. A chaotic system with a line equilibrium has been studied in this work. The system has infinite equilibria and exhibits coexisting chaotic ...
A comparative ab initio study of superconductivity in the body centered tetragonal YC2 and LaC2

Tütüncü, Hüseyin Murat; G. P. Srivastava (AMER INST PHYSICS, 2015)

Ab initio studies of the electronic band structure and phonon dispersion relations, using the planewave pseudopotential method and the density functional theory, have been made for the superconducting materials YC2 and ...
A comparative study of surface phonons on CdTe(110) and InSb(110)

Tütüncü, Hüseyin Murat (ELSEVIER SCIENCE BV, 2001)

We have studied the lattice dynamics of the CdTe(110) and InSb(110) surfaces by using the adiabatic bond-charge model. The atomic geometry and electronic informations for the phonon calculations have been obtained by using ...
A heterocyclic compound 5-acetyl-2,4-dimethylthiazole, spectroscopic, natural bond orbital, nonlinear optical and molecular docking studies

Avcı, Davut; B. Dede; S. Bahceli; D. Varkal (SOC MEXICANA FISICA, 2019)

In this work, the 5-acetyl-2,4-dimethylthiazole (C7H9NSO) molecule was studied by using the experimental UV-vis (in three different solvents) and FT-IR spectral results, and theoretically using DFT calculation method. The ...
A method to predict effective case depth in ion nitrided steels

Genel, Kenan (ELSEVIER SCIENCE SA, 2005)

Ion nitriding is one of the most promising thermochemical surface treatments to improve surface properties such as wear and corrosion resistance and fatigue strength. The prediction of effective case depth before nitriding ...
A new 4-D chaotic hyperjerk system, its synchronization, circuit design and applications in RNG, image encryption and chaos-based steganography

S. Vaidyanathan; Akgül, Akif; Kaçar, Sezgin; Çavuşoğlu, Ünal (SPRINGER HEIDELBERG, 2018)

Hyperjerk systems have received significant interest in the literature because of their simple structure and complex dynamical properties. This work presents a new chaotic hyperjerk system having two exponential nonlinearities. ...
A new approach to representations of homothetic motions in Lorentz space

Unal, Dogan; Gungor, Mehmet Ali; Tosun, Murat (2022)

In this study, Rodrigues parameters have been first calculated for a homothetic rotation around spacelike and timelike axis using one parameter homothetic motions in Lorentz 3 -space E-1(3). The behavior of the vectors ...
A New Generalization of the Steiner Formula and the Holditch Theorem

Tulay Erisir; Güngör, Mehmet Ali; Tosun, Murat (SPRINGER BASEL AG, 2016)

In this study, we first obtained the Steiner area formula in the generalized complex plane. Then, with the aid of this formula, we determined a new approach for the Holditch theorem giving the relationship between the areas ...
A Review of MPPT Algorithms for Partial Shading Conditions

Erdem, Zekiye (POLISH ACAD SCIENCES INST PHYSICS, 2017)

Maximum power point tracker in a photovoltaic system allows to maximize the energy drawn from the connected photovoltaic modules. In the partial shade conditions there can be more than one maximum point in photovoltaic ...
A Serendipity-Oriented Personalized Trip Recommendation Model

Abbas, Rizwan; Hassan, Ghassan Muslim; Al-Razgan, Muna; Zhang, Mingwei; Amran, Gehad Abdullah; Al Bakhrani, Ali Ahmed; Alfakih, Taha; Al-Sanabani, Hussein; Rahman, Sk Md Mizanur (MDPI, 2022)

Personalized trip recommendation attempts to recommend a sequence of Points of Interest (POIs) to a user. Compared with a single POI recommendation, the POIs sequence recommendation is challenging. There are only a couple ...
A significant role of MoO3 on the optical, thermal, and radiation shielding characteristics of B2O3-P2O5-Li2O glasses

Alrowaili, Z. A.; Ali, Atif Mossad; Al-Baradi, Ateyyah M.; Al-Buriahi, M. S.; Wahab, E. A. Abdel; Shaaban, Kh S. (SPRINGER, 2022)

The glass system 42.5P(2)O(5)-42.5B(2)O(3)(15 - x) Li2O-x MoO3 x = (0, 2.5, 5.10 and 15), was fabricated using a melt-quenching technique. Optical features are examined depending on measuring the absorption and transmission ...
A simulation study of the cloud propagation model

Çerezci, Osman (IOP PUBLISHING LTD, 1999)

Propagation through a sparse distribution of lossy particles in a cloud is investigated. Using a discrete modelling technique, a mathematical model to aid in the interpretation of the interaction data obtained by electromagnetic ...
A theoretical investigation of the magnetic dipole moment of the ground- and excited-states below 600 keV in well-deformed W-183,W-185, Re-185,Re-187 and Os-187,Os-189

Tabar, Emre (WORLD SCIENTIFIC PUBL CO PTE LTD, 2019)

Magnetic dipole moments of the ground- and excited-states below 600 keV in W-183,W-185, Re-185,Re-187 and Os-187,Os-189 nuclei have been systematically studied in the framework of a microscopic Quasiparticle Phonon Nuclear ...
A theoretical study on structural, spectroscopic, electronic and electric properties of 4-chloro 4-nitrostilbene

Tamer, Ömer; Avcı, Davut; C. Arioglu; A. Basoslu; Atalay, Yusuf (INDIAN ASSOC CULTIVATION SCIENCE, 2015)

Organic crystals based on the donor and acceptor conjugated system display excellent nonlinear optical properties. In this study, nonlinear optical single crystal 4-chloro 4-nitrostilbene has been modeled on the basis of ...
A theoretical study on the ground and low-energy magnetic dipole characteristics of Pu-239 nucleus

Tabar, Emre (ELSEVIER SCIENCE BV, 2019)

A microscopic model analysis of the magnetic dipole (M1) properties of Pu-239 nucleus, which is a fissile material not only used in nuclear weapons but also used in some nuclear reactors as a source of energy, has been ...
A theoretical study on the radiation shielding performance of borate and tellurite glasses

Alzahrani, Jamila S.; Eke, Canel; Alrowaili, Z. A.; Boukhris, Imed; Mutuwong, C.; Bourham, Mohamed A.; Al-Buriahi, M. S. (2022)

The study aims to compare radiation shielding properties of borate and tellurite glasses. This paper presents a theoretical study on the radiation shielding properties of borate and tellurite glasses described by the forms ...
Ab initio calculation of the molecular structure and vibration frequencies of carbonate ions coordinated to calcium ions in the zeolite CaA by Hartree-Fock methods

Atalay, Yusuf (WALTER DE GRUYTER GMBH, 2005)

The molecular structures and vibration frequencies of unidentate and bidentate coordinations of carbonate ions to calcium ions in the zeolite CaA have been investigated, using the Hartree-Fock method implementing 6-31 G ...
Ab initio calculation of the structural and dynamical properties of the zinc-blende BN and its (110) surface

Bağcı, Sadık; Duman, Sıtkı; Tütüncü, Hüseyin Murat (ELSEVIER SCIENCE SA, 2006)

Using a first-principles pseudopotential technique, we have presented static and dynamical properties of cubic-BN. The calculated values for the lattice constant, bulk modulus, its first derivative and optical dielectric ...