• 2-nil ideals of commutative rings 

  Yetkin-Çelikel, Ece (Belgian Mathematical Society, 2021)

  The concept of 2-nil ideal of a commutative ring R is introduced, as an alternative to the (2, n)-ideals from [6]. We study its relationship with previously introduced classes of ideals, such as 2-absorbing ideals and ...

• Implementing PointNet for point cloud segmentation in the heritage context 

  Haznedar, Bulent; Bayraktar, Rabia; Ozturk, Ali Emre; Arayici, Yusuf (Springer Science and Business Media Deutschland GmbH, 2023)

  Automated Heritage Building Information Modelling (HBIM) from the point cloud data has been researched in the last decade as HBIM can be the integrated data model to bring together diverse sources of complex cultural content ...

• Broadband, Stable, and Non-Iterative Dielectric Constant Measurement of Low-Loss Dielectric Slabs Using a Frequency-Domain Free-Space Method 

  Hasar, Ugur C.; Kaya, Yunus; Ozturk, Gokhan; Ertugrul, Mehmet; Korasli, Celal (Institute of Electrical and Electronics Engineers Inc., 2022)

  A broadband, stable, and non-iterative free-space method is proposed for dielectric constant ε′r determination of low-loss dielectric slabs from reflection-only measurements through simple calibration standards (reflect ...

• Development software program for extraction of photovoltaic cell equivalent circuit model parameters based on the Newton–Raphson method 

  Adak, Suleyman; Cangi, Hasan; Yilmaz, Ahmet Serdar; Arifoglu, Ugur (Springer, 2022)

  Finding the equivalent circuit parameters for photovoltaic (PV) cells is crucial as they are used in the modeling and analysis of PV arrays. PV cells are made of silicon. These materials have a nonlinear characteristic. ...

• General line-line method for propagation constant measurement of non-reciprocal networks 

  Hasar, Uğur Cem; Öztürk, Hamdullah; Korkmaz, Hüseyin; İzgınlı, Mücahit; Karaaslan, Muharrem; Büte, Musa (Elsevier B.V., 2022)

  A general “line-line” (LL) method is proposed for propagation constant determination (γ+ and γ−) of nonreciprocal networks using multiple reference networks. The new formalism provides flexibility in implementation of LL ...

• Social network analysis of tourism data: A case study of quarantine decisions in COVID-19 pandemic 

  Altuntaş, Fatma; Altuntaş, Serkan; Dereli, Türkay (Elsevier B.V., 2022)

  Tourism is one of the most affected sector during the COVID-19 pandemic all over the world. Quarantine decisions are the leading measures taken in practice to reduce possible negative consequences of the COVID-19 pandemic. ...

• δ-n-IDEALS OF COMMUTATIVE RINGS 

  Yetkin-Çelikel, Ece; Ulucak, Gülşen (University of Guilan, 2022)

  Let R be a commutative ring with non-zero identity, and δ: I(R) → I(R) be an ideal expansion where I(R) is the set of all ideals of R. In this paper, we introduce the concept of δ-n-ideals which is an extension of n-ideals ...

• ON WEAKLY S-PRIME SUBMODULES 

  Khashan, Hani A.; Yetkin-Çelikel, Ece (Taehan Suhakhoe, 2022)

  Let R be a commutative ring with a non-zero identity, S be a multiplicatively closed subset of R and M be a unital R-module. In this paper, we define a submodule N of M with (N:R M)∩S = ∅ to be weakly S-prime if there ...

• Semi n-ideals of commutative rings 

  Yetkin-Çelikel, Ece; Khashan, Hani A. (Springer Nature, 2022)

  Let R be a commutative ring with identity. A proper ideal I is said to be an n-ideal of R if for a, b ∈ R, ab ∈ I and a∉0 imply b ∈ I. We give a new generalization of the concept of n-ideals by defining a proper ideal I ...

• The triple zero graph of a commutative ring 

  Yetkin-Çelikel, Ece (Ankara Üniv. Fen Fakültesi, 2021)

  Let R be a commutative ring with non-zero identity. We define the set of triple zero elements of R by TZ(R)=ainZ(R)ast:$thereexists$b,cinRbackslash0$suchthat$abc=0$,$abneq0$,$acneq0$,$bcneq0. In this paper, we introduce ...

• Ideal-based quasi zero divisor graph 

  Yetkin-Çelikel, Ece; Das, Angsuman; Abdioğlu, Cihat (Hacettepe Üniversitesi Fen Fakultesi, 2021)

  Let R be a commutative ring with identity and I a proper ideal of R. In this paper we introduce the ideal-based quasi zero divisor graph QGammaI(R) of R with respect to I which is an undirected graph with vertex set ...

• Silicon Carbide Based Three Phase Inverter With Higher;Efficiency, Power Capability and Power Density ForRenewable Energy Applications 

  Eid, Bilal (Hasan Kalyoncu Üniversitesi, 15.07.2020)

  In this Project 3 Phase 4-Wire 2-Level neutral point clamped SiC MOSFET based Voltage Source Inverter (VSI) was carried out. VSI was operated at 30 kHz switching frequency using neutral air cooling Aluminium (Al) heat sink. ...

• Serbest Uzay Optik Haberleşme Sistemlerinde Turbo Çarpım Kodların Performans Analizi 

  Bayraktar, Mert (2020)

  Bu makalede, turbo çarpım kodlarının(TPC) serbest uzay optik(FSO) sistemlerinin performansına olan etkisi incelenmiştir. Atmosfer modeli olarak log-normal dağılım seçilmiştir. MATLAB benzetim çalışmaları zayıf ve orta ...

• On Weakly 1-Absorbing Primary Ideals of Commutative Rings 

  Badawi, Ayman; Celikel, Ece Yetkin (WORLD SCIENTIFIC PUBL CO PTE LTD, JUN 2022)

  Let R be a commutative ring with 1 not equal 0. We introduce the concept of weakly 1-absorbing primary ideal, which is a generalization of 1-absorbing primary ideal. A proper ideal I of R is said to be weakly 1-absorbing ...

• ChaLearn Looking at People: IsoGD and ConGD Large-Scale RGB-D Gesture Recognition 

  Wan, Jun; Lin, Chi; Wen, Longyin; Li, Yunan; Miao, Qiguang; Escalera, Sergio; Anbarjafari, Gholamreza; Guyon, Isabelle; Guo, Guodong; Li, Stan Z. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, MAY 2022)

  The ChaLearn large-scale gesture recognition challenge has run twice in two workshops in conjunction with the International Conference on Pattern Recognition (ICPR) 2016 and International Conference on Computer Vision ...

• Determination of Propagation Constants and Wave Impedance of Non-Reciprocal Networks From Position-Insensitive Waveguide Measurements 

  Hasar, Ugur C.; Kaya, Yunus; Izginli, Mucahit; Ozturk, Hamdullah; Barroso, Joaquim J.; Ramahi, Omar M.; Ertugrul, Mehmet (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, MAY 2022)

  A microwave method is proposed to determine the forward and backward propagation constants (gamma ⁺ and gamma ⁻) and the wave impedance ( $z_{w}$ ) of reciprocal and non-reciprocal microwave networks whose positions are ...

• Improved Method for Permittivity Determination of Dielectric Samples by Free-Space Measurements 

  Hasar, Ugur Cem; Kaya, Yunus; Ozturk, Hamdullah; Izginli, Mucahit; Ertugrul, Mehmet; Barroso, Joaquim Jose; Ramahi, Omar M. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2022)

  A new deembedding technique is proposed for relative complex permittivity epsilon(r) determination of dielectric materials using gated free-space measurements. Its three main features are 1) it does not require any formal ...

• Ungulate Detection and Species Classification from Camera Trap Images Using RetinaNet and Faster R-CNN 

  Vecvanags, Alekss; Aktas, Kadir; Pavlovs, Ilja; Avots, Egils; Filipovs, Jevgenijs; Brauns, Agris; Done, Gundega; Jakovels, Dainis; Anbarjafari, Gholamreza (MDPI, MAR 2022)

  Changes in the ungulate population density in the wild has impacts on both the wildlife and human society. In order to control the ungulate population movement, monitoring systems such as camera trap networks have been ...

• Rheology, Crystallinity, and Mechanical Investigation of Interlayer Adhesion Strength by Thermal Annealing of Polyetherimide (PEI/ULTEM 1010) Parts Produced by 3D Printing 

  Yilmaz, Musa; Yilmaz, Necip Fazil; Kalkan, Mahmut Furkan (SPRINGER, JUN 2022)

  Fused deposition modeling (FDM) is a 3D printing technology in which the melt extrusion method is used for the production of thermoplastic parts. 3D printed thermoplastic materials produced by this method suffer from a ...

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