WoS İndeksli Yayınlar Koleksiyonu
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Editorial Citation - Scopus: 1The Role of Cultural Heritage in Resilience Planning: Evidence From 100 Resilient Cities(Firenze Univ Press, 2025) Altay-Kaya, Deniz; Yesilbag, DamlaAs a container of accumulated experiences, cultural heritage connects past, present and future by transmitting knowledge to future generations through tangible/intangible assets. With this potential, cultural heritage can significantly contribute to community resilience, yet available resilience strategy documents place limited emphasis on cultural heritage. Based on this observed lack of systematic consideration, this paper analyses the resilience strategy documents presented in the 100 Resilient Cities Programme, and discerns six approaches towards cultural heritage, namely ignorance, economic development tool, identity construction, social component, physical integration tool, and comprehensive consideration. The paper discusses further ways cultural heritage can enhance community resilience.Article Citation - WoS: 9Citation - Scopus: 12Some Extended Nabla and Delta Hardy-Copson Type Inequalities With Applications in Oscillation Theory(Springer Singapore Pte Ltd, 2022) Kaymakcalan, Billur; Kayar, ZeynepWe extend classical nabla and delta Hardy-Copson type inequalities from zeta > 1 to 0 < zeta < 1 and also use these novel inequalities to find necessary and sufficient condition for the nonoscillation of the related half linear dynamic equations. Since ordinary differential equations and difference equations are special cases of dynamic equations, our results cover these equations as well. Moreover, the obtained inequalities are not only novel but also unify the continuous and discrete cases for which the case 0 < zeta < 1 has not been considered so far.Article Citation - WoS: 28Citation - Scopus: 27Examination and Optimization of a Novel Auxiliary Trigeneration System for a Ship Through Waste-To From Its Engine(Elsevier, 2022) Cao, Yan; Delpisheh, Mostafa; Yousefiasl, Saeed; Athari, Hassan; El-Shorbagy, M. A.; Jarad, Fahd; Wae-hayee, MakatarConsidering the thermal processes with the help of smart heat recovery, this study proposes a novel auxiliary trigeneration system for a ship based on the waste heat of its engine to produce electricity, cooling, and freshwater. The system consists of a regenerative organic Rankine cycle (RORC) with R600 working fluid, a lithium-bromide/water single-effect absorption chiller, and a humidification dehumidification (HDH) desalination unit. A multi-heat recovery technique is implemented in the design framework, having a well-organized waste-to-energy system. Technical 3E (energy, exergy, and exergoeconomic) analysis together with a multi-criteria optimization using a genetic algorithm is conducted. Furthermore, a parametric study is employed regarding the impact of changing design parameters, namely, pinch point temperature difference of the high recovery vapor generator (HRVG), turbine inlet pressure, and top temperature of the HDH on the thermodynamic and exergoeconomic criteria. The results indicated the high sensitivity of the outputs from varying the turbine inlet pressure. Besides, the optimum net output power, cooling, and generated freshwater are calculated to be 783.9 kW, 959.8 kW, and 98.1 m(3)/day, respectively. Also, the optimum energy and exergy efficiencies and total cost per unit exergy are computed to be 58.4%, 43.0%, and 0.1494 $/kWh, respectively.Editorial Citation - WoS: 2Citation - Scopus: 2Guest Editorial: Gamification and Persuasive Games for Software Engineering(inst Engineering Technology-iet, 2019) O'Connor, Rory V.; Colomo-Palacios, Ricardo; Clarke, Paul; Yilmaz, MuratArticle Citation - WoS: 8Citation - Scopus: 9Effect of Sm on Thermal and Mechanical Properties of Cu-Zr Bulk Metallic Glasses(Elsevier Science Sa, 2019) Sikan, F.; Atabay, S. E.; Motallebzadeh, A.; Ozerinc, S.; Kalay, I.; Kalay, Y. E.The effect of rare-earth (Sm) microalloying on the thermal stability and phase selection along with the effect of nanocrystallization on the mechanical properties of amorphous melt-spun ribbons of Zr50Cu40Al10, Zr49Cu39.2Al9.8Sm2 and Zr48Cu38.4Al9.6Sm4 alloys were investigated using differential scanning calorimetry (DSC), X-ray diffraction (XRD), transmission electron microscopy (TEM), Vickers and nanoindentation hardness tests and micropillar compression analysis. XRD and TEM analyses showed that all samples were fully amorphous in as-spun state; however, crystallization sequences for the Sm-free and the Sm micro-alloyed samples were different during devitrification. Combined study of XRD, DSC and TEM on melt-spun ribbons show that Zr48Cu38.4Al9.6Sm4 have nanocrystallization of Cu2Sm phase with an average diameter of 10 nm, which was absent in Zr50Cu40Al10, prior to crystallization of Cu10Zr7 phase. The nanoindentation and micropillar compression tests revealed Cu2Sm nanocrystals embedded in Zr48Cu38.4Al9.6Sm4 alloy improves strength and hardness. On the other hand, presence of these nanocrystals deteriorate shear band stability and thus result in a catastrophic brittle fracture through a single shear band burst.Correction Antibacterial Behavior of Oxynitride Glasses as a Glassy Grain Boundary Phase for Silicon Nitride-Based Ceramics (Vol 12, Pg 328, 2021)(Wiley Periodicals, inc, 2022) Kushan Akin, Seniz R.; Dolekcekic, Emrah; Webster, Thomas J.Article Citation - WoS: 35Citation - Scopus: 42New Discretization of Caputo-Fabrizio Derivative(Springer Heidelberg, 2018) Yildiz, Burak; Baleanu, Dumitru; Akman, TugbaWe derive a numerical approximation, namely L1-2 formula, to the Caputo-Fabrizio derivative by using a quadratic interpolation. Quadratic and cubic convergence rates are achieved for L1 and L1-2 formulas using Lagrange interpolation, respectively. We compute Caputo-Fabrizio derivatives of some known functions both theoretically and numerically. In addition, we solve non/linear sub-diffusion equations to test theoretical findings. Numerical results confirm the theoretically observed convergence rates.Article Citation - WoS: 8Citation - Scopus: 14Shape-Preserving Properties of a Relaxed Four-Point Interpolating Subdivision Scheme(Mdpi, 2020) Ghaffar, Abdul; Baleanu, Dumitru; Sehar, Irem; Nisar, Kottakkaran Sooppy; Khan, Faheem; Ashraf, PakeezaIn this paper, we analyze shape-preserving behavior of a relaxed four-point binary interpolating subdivision scheme. These shape-preserving properties include positivity-preserving, monotonicity-preserving and convexity-preserving. We establish the conditions on the initial control points that allow the generation of shape-preserving limit curves by the four-point scheme. Some numerical examples are given to illustrate the graphical representation of shape-preserving properties of the relaxed scheme.Article Citation - WoS: 12Citation - Scopus: 11Effect of Constitutive Material Model on the Finite Element Simulation of Shear Localization Onset(Elsevier, 2020) Yilmaz, Okan Deniz; Oliaei, Samad Nadimi BavilOne of the most challenging problems in the field of machining is to determine the onset of shear localization. The consequences of the emergence of shear localized chips are fluctuations in the machining forces, tool wear, deterioration of the surface quality and out-of-tolerance machined components. Several constitutive material models are developed for the simulation of shear localization during machining, especially for Ti6Al4V. However, the accuracy and capability of the proposed models for the prediction of shear localization onset have not been investigated yet. In this study, the effect of different constitutive material models in the prediction of shear localization onset has been investigated. Different material models are studied including the Johnson-Cook (J-C) material model with Cockcroft-Latham damage model, J-C material model with a J-C damage model, models based on modified J-C material models (MJ-C) with strain softening terms, and material model with power-law type strain hardening and strain rate sensitivity, with polynomial thermal softening and polynomial temperature-dependent damage. The results of the finite element models are verified using orthogonal cutting experiments in terms of chip morphology and machining forces. Metallography techniques are used along with SEM observations to elucidate the distinction between continuous and shear localized chips. The results of this study indicate that three models are capable of predicting shear localization onset. However, when compared to the experiments, where a critical cutting speed of 2.8 m/min is obtained for shear localization onset, the results revealed that the model proposed by Sima and Ozel (2016) which is a model based on MJ-C model with temperature-dependent overarching modifier and temperature-dependent material model parameters is more accurate for the prediction of shear localization onset during machining Ti6Al4V. This model is shown to reveal a good prediction for the machining forces as well.Conference Object The Implementation of a Successive Cancellation Polar Decoder on Xilinx System Generator(Ieee, 2017) Colak, Ayse; Gazi, Orhan; Arli, A. CagriPolar coding is the first kind of the capacity achieving codes which are defined for binary-input discrete memoryless channels initially. Parallel processing property of the FPGA allows to decode faster with a margin of complexity. Xilinx System Generator as a practical tool to construct decoding designs in shorter time is a fact. In this study, FPGA implementation of decoding polar codes through Xilinx System Generator is shown.Article Citation - WoS: 51Citation - Scopus: 56Optical Solitons for Complex Ginzburg-Landau Model in Nonlinear Optics(Elsevier Gmbh, Urban & Fischer verlag, 2018) Aliyu, Aliyu Isa; Yusuf, Abdullahi; Baleanu, Dumitru; Inc, MustafaThis paper studies the complex Ginzburg-Landau equation (CGLE) which models soliton propagation in the presence of detuning factor in nonlinear optics. Dark, bright, dark-singular and a new dark-bright optical soliton solutions to the model are derived using the sine-Gordon equation method (SGEM). Singular soliton solutions are also celebrated. The model is studied with Kerr law, quadratic-cubic law and parabolic laws nonlinear fibers. It is hoped that the results reported in this paper can enrich the nonlinear dynamical behaviors of the CGLE. (C) 2017 Elsevier GmbH. All rights reserved.Article Citation - WoS: 23Citation - Scopus: 22A Note on the Gornicki-Proinov Type Contraction(Hindawi Ltd, 2021) Karapinar, Erdal; De La Sen, Manuel; Fulga, AndreeaIn this paper, we propose a notion of the Gornicki-Proinov type contraction. Then, we prove the uniqueness and existence of the fixed point for such mappings in the framework of the complete metric spaces. Some illustrative examples are also expressed to strengthen the observed results.Article Citation - WoS: 10Citation - Scopus: 15Sources and Channels of International Knowledge Spillovers in Asean-5: the Role of Institutional Quality(Wiley, 2020) Dogan, Ergun; Wong, Koi NyenAssociation of Southeast Asian Nations (ASEAN) is a dynamic and outward-looking regional economy, which has made notable progress in expanding trade and investment. This paper examines whether knowledge spillovers are prevalent among ASEAN-5, focusing on the issues of which channels and which sources are the potential drivers of total factor productivity. The findings reveal that the key spillover channels are exports and non-capital imports coming from source countries such as the Organisation for Economic Co-operation and Development (OECD) countries, the G7 countries. The institutional quality plays an instrumental role in increasing total factor productivity through foreign direct investment, especially when the spillovers originate from the OECD and the G7. (c) 2020 John Wiley & Sons, Ltd.Conference Object A Study on How To Equip Students With Scientific Communication Skills(Springer international Publishing Ag, 2018) Akkoyunlu, Buket; Cetin, Nihal MenziThe purpose of this study was to investigate the effects of scientific communication (SC) curriculum on blog writing skills of sixth-grade students, and opinions of the students and teachers about the curriculum. Through the curriculum, it was aimed to teach students the ability to access and evaluate information, organize information and share it by writing a blog. Students were given three different writing assignments and were asked to share them in their blogs. The first assignment was given for adapting to the writing process. The second and third assignments were assessed to determine the effect of SC curriculum on blog writing skills. At the end of the process, teachers and students were asked about their opinions on SC curriculum and blog writing. Study results revealed that SC curriculum had positive effects on research and writing skills development of the students, and showed that the curriculum was supportive in reaching the course-specific goals.Article Citation - WoS: 3Citation - Scopus: 3Exploring Fire Safety Conditions of Double Skin Facades(Gazi Univ, Fac Engineering Architecture, 2024) Aslar, Eylem Ezgi; Harputlugil, Gulsu UlukavakHuman health, comfort and safety are of primary importance in the built environment. Among the security measures, the most important risk is the risk of fire. For this reason, the issue of fire risk, spread and safety is considered as one of the criteria that should be considered from the building design stage. Within the scope of this study, building models with the same floor height, different plan and facade types, designed in 3D, were analyzed in the fire simulation program called PyroSim. Based on the data obtained as a result of the analyzes, the results of the temperature, smoke and flame spread at the time of fire according to the facade and plan types are presented in tables. As a result of the data obtained, it was determined that box-type systems in double-layer facades are the most problematic facade type in terms of evacuation of living creatures. In terms of smoke spread, it has been revealed that the systems that continue uninterruptedly along the facade pose a problem when the access and spread to other floors are taken into account. It is necessary to consider fire safety as a design problem. It is considered that more detailed studies should be carried out in our country on this subject, that the project should be designed by considering the simulations from the decision stage to the implementation stage of the building, and that the regulations should be developed in order to be a good guide in both the design and implementation stages.Book Part Citation - WoS: 1Citation - Scopus: 2A New Route for Regional Planning in Turkey: Recent Developments(Springer international Publishing Ag, 2019) Ozdemir, Suna S.Since the 1930s, regional plans have been drawn up for various regions in Turkey. However, the institutional practice of regional development policy as well as regional planning began with the establishment of the State Planning Organisation in 1960. After the 1960s, through Five-Year National Development Plans, a regional development policy was defined, and regional development plans were formulated for some specific regions. In practice, there were some challenges and problems during that period in regional planning. The shift in the regional development policy and regional planning began in 1999 with Turkey's accession period to the European Union. For adaptation to the EU's regional policy, some newpolicies, legislation, and institutional set-ups were defined. This chapter mainly focuses on these new policies and instruments, namely the new route taken by regional planning in Turkey.Article Citation - Scopus: 2Quadruple Best Proximity Points With Applications To Functional and Integral Equations(Wiley, 2022) Rashwan, Rashwan A.; Nafea, A.; Jarad, Fahd; Hammad, Hasanen A.This manuscript is devoted to obtaining a quadruple best proximity point for a cyclic contraction mapping in the setting of ordinary metric spaces. The validity of the theoretical results is also discussed in uniformly convex Banach spaces. Furthermore, some examples are given to strengthen our study. Also, under suitable conditions, some quadruple fixed point results are presented. Finally, as applications, the existence and uniqueness of a solution to a system of functional and integral equations are obtained to promote our paper.Article Citation - WoS: 7Citation - Scopus: 9Analytical Treatments To Systems of Fractional Differential Equations With Modified Atangana-Baleanu Derivative(World Scientific Publ Co Pte Ltd, 2023) Syam, Muhammed I.; Baleanu, Dumitru; Al-Refai, MohammedThe solutions of systems of fractional differential equations depend on the type of the fractional derivative used in the system. In this paper, we present in closed forms the solutions of linear systems involving the modified Atangana-Baleanu derivative that has been introduced recently. For the nonlinear systems, we implement a numerical scheme based on the collocation method to obtain approximate solutions. The applicability of the results is tested through several examples. We emphasize here that certain systems with the Atangana-Baleanu derivative admit no solutions which is not the case with the modified derivative.Article Citation - WoS: 2Citation - Scopus: 2Simulating Systems of Ito? Sdes With Split-Step (?, ?)-Milstein Scheme(Amer inst Mathematical Sciences-aims, 2022) Torkzadeh, Leila; Baleanu, Dumitru; Nouri, Kazem; Ranjbar, HassanIn the present study, we provide a new approximation scheme for solving stochastic differential equations based on the explicit Milstein scheme. Under sufficient conditions, we prove that the split-step (alpha, beta)-Milstein scheme strongly convergence to the exact solution with order 1.0 in mean-square sense. The mean-square stability of our scheme for a linear stochastic differential equation with single and multiplicative commutative noise terms is studied. Stability analysis shows that the mean-square stability of our proposed scheme contains the mean-square stability region of the linear scalar test equation for suitable values of parameters alpha, beta. Finally, numerical examples illustrate the effectiveness of the theoretical results.Article Citation - WoS: 6Citation - Scopus: 4Symmetries of the Dual Metrics(World Scientific Publ Co Pte Ltd, 2002) Baleanu, DIn this paper the symmetries of the dual manifold are investigated. We found the conditions when the manifold and its dual admit the same Killing vectors and Killing-Yano tensors. The dual conformal Killing vectors and dual conformal Killing-Yano tensors were investigated. In the case of an Einstein's metric g(munu) the corresponding equations for its dual were found. The examples of Kerr-Newman geometry and the separable coordinates in 1 + 1 dimensions axe analyzed in details.
