Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(77)
- Merdan, Mehmet(73)
- Duran, Celal(54)
- Ozdes, Duygu(50)
- Baltaci, Cemalettin(45)
- Kaygusuz, Abdullah(45)
- Kulakaç, Nurşen(39)
- Ashyralyyev, Charyyar(38)
- Karsli, Orhan(37)
- Demir, Selim(36)
- Öztürk, Serkan(36)
- Dokuz, Abdurrahman(35)
- Turan, Ibrahim(35)
- Araz, Onur(33)
- Kandemir, Raif(31)
- Sipahi, Ferkan(30)
- Topal, Fevzi(30)
- Kurt, Kemal(28)
- Peker, Iskender(28)
- Arslan, Mehmet(27)
- Baltacı, Cemalettin(27)
- Maden, Nafiz(27)
- Ozturk, Samet(27)
- Aydin, Aydanur(26)
- Vural, Alaaddin(26)
- Bayrakdaroglu, Serdar(25)
- Kurnaz, Muammer(25)
- Reis, Hatice Catal(25)
- Akar, Zeynep(24)
- Aydin, Faruk(24)
- Gücer, Mehmet Ali(24)
- Topal, Meryem(24)
- Yolcu, Halil(24)
- Yücel, Cem(24)
- Anaç, Halil(23)
- Kankal, Murat(23)
- Ürkek, Bayram(23)
- Aliyazicioglu, Yuksel(22)
- Günen, Mehmet Akif(22)
- Tuncer, Metin(22)
Yayınlar
- MakaleAçık Erişim2026Scopus SJRQ2Canal Hypersurfaces Generated by Pseudo-Null Curves with Bishop Frame in Lorentz-Minkowski 4-Space
Kazan, Ahmet; Kazan, Sema; Gur Mazlum, Sumeyye; Karaca, Emel; Altin, Mustafa; Grilli, Luca
In this paper, we deal with the canal hypersurfaces that are formed as the envelope of a family of pseudo-hyperspheres or pseudo-hyperbolic hyperspheres with centers lying on a pseudo-null curve with Bishop vector fields in four-dimensional Lorentz-Minkowski space. We give main theorems which contain the parametric expressions of these canal hypersurfaces along with their Gaussian, mean, and principal curvatures and important geometric characterizations. We also provide these characterizations for tubular hypersurfaces. Finally, we construct an example to allow for better understanding and comprehension of the results.
- MakaleYalnız künye2026Scopus SJRQ2Spatio-Temporal Distributions of Seismicity, Stress Evolution, and Tectonomagmatic Signatures of the 2025 Sındırgı Earthquake Swarm, Western Anatolia, Türkiye
Büyüksaraç, Aydin; Senkaya, Mustafa; Alkan, Hamdi; Bektas, Ozcan; Öztürk, Serkan; Pirti, Atinc; Yücel, Mehmet Ali
The Simav Fault Zone (SFZ) in Western Anatolia remains one of the most active tectonic regions in Turkey, and the 2025 S & imath;nd & imath;rg & imath; earthquake swarm has renewed concern regarding evolving seismic hazard. This study analyzes the swarm on the S & imath;nd & imath;rg & imath; Segment using Coulomb stress modelling, spatial distributions of b- and p-value, gravity and magnetic anomalies, geothermal data, and GNSS observations. Coulomb stress calculations show that the M-W = 6.1 and M-W = 6.0 mainshocks produced stress increases of similar to 0.1 bar that effectively loaded adjacent segments of the SFZ, D & uuml;vertepe Fault Zone (DFZ), and Gelenbe Fault Zone (GFZ), guiding the east-southeast and northward migration of aftershocks. Spatial statistics indicate a b-value ranging from 0.6 to 1.3 and a p-value between 0.3 and 1.0. The lower b-values (< 1.0) and p-values (< 0.5) mark high-stress regions near the mainshock, and higher values characterize more stable zones. Gravity anomalies delineate a dense volcanic-ophiolitic body in the southwest and a caldera-like depression south of the SFZ, while magnetic anomalies highlight the structural continuation and interaction of the SFZ with the GFZ. GNSS stations recorded centimetre-to millimetre-scale motions: BAL1 moved similar to 1.34 cm horizontally with minor uplift, DEI1 experienced similar to 1.12 cm displacement with small vertical fluctuations, and KIKA shifted similar to 0.85 cm southwestward with largely stable elevation. Together, these results show that the 2025 swarm was controlled by stress transfer within a mechanically heterogeneous tectonomagmatic system. The identified stress-enhanced corridors along the SFZ and DFZ may act as future nucleation zones, emphasizing the need for sustained monitoring of this evolving fault network.
- MakaleAçık Erişim2026Scopus SJRQ1Process Optimization of Spray-Dried Aquafaba and Comparison with Freeze-Drying: Techno-Functional Performance and Structural Attributes
Tunc Odabas, Merve Tugce; Saricaoglu, Furkan Turker; Parlak, Mahmut Ekrem; Akdogan, Arda; Odabas, Halil Ibrahim; Gündogdu, Engin; Simsek, Senay; Atalar, Ilyas
This study aimed to optimize the spray-drying (SD) process for aquafaba and compare the physical and techno-functional properties of the resulting powder with those of its freeze-dried (FD) counterpart. A Box-Behnken design was employed to evaluate the effects of inlet air temperature (150-190 degrees C), air speed (3.5-4.3 m/s), and feed flow rate (0.3-0.5 L/h) on 14 quality responses. The optimized SD conditions were determined to be an inlet air temperature of 189 degrees C, an air speed of 4.2 m/s, and a feed flow rate of 0.3 L/h. Validation experiments demonstrated that the developed models had high predictive capacity, with only a small discrepancy (0.56-5.88%) between the predicted and experimental values. Comparative analysis showed that the optimized SD powder had significantly lower moisture content (2.47%) and water activity (0.18) than the FD powder (3.51% and 0.34, respectively), indicating superior storage stability. In addition, the SD powder exhibited greater whiteness (82.37), higher water solubility (88.44%), and substantially greater foaming capacity (266.67%) than the FD sample (243.33%). Although the FD powder demonstrated better wettability and water absorption capacity because of its porous structure, FTIR spectroscopy and protein secondary structure analysis confirmed that SD preserved the functional integrity of aquafaba. Specifically, SD induced a transition from disordered random-coil structures to more ordered beta-sheet and beta-turn configurations, thereby improving foaming performance. Overall, these findings indicate that optimized spray-drying is a highly efficient and industrially scalable alternative to freeze-drying for producing functional aquafaba powder for use as a plant-based egg substitute.
- MakaleAçık Erişim2026Scopus SJRQ1Thermosonication improves the bioactive properties and in vitro bioaccessibility of broccoli juice through integrated RSM and metaheuristic optimization
Arpa Zemzemoglu, Tuba Eda; Tokatli Demirok, Nazan; Türkol, Melikenur; Gürfidan, Remzi; Kilim, Oguzhan; Tokatli, Nazli; Yikmis, Seydi; Mohamed Ahmed, Isam A.; Aljobair, Moneera O.; Yinanç, Abdullah
Broccoli juice is highly nutritious, containing phenolic compounds, chlorophyll derivatives, antioxidants, and other biologically active phytochemicals; however, conventional thermal processing may reduce their stability and bioaccessibility. The aim of this study was to analyse the impact of thermosonication on the following properties of broccoli juice: bioactivity, antioxidant capacity, phenolic profile and in vitro bioaccessibility. Thermosonication conditions were optimized using Response Surface Methodology (RSM) integrated with the Gray Wolf Optimizer (GWO) and Particle Swarm Optimization (PSO) algorithms. Broccoli juice samples were subjected to conventional pasteurization and thermosonication under different processing conditions, and total chlorophyll, ascorbic acid (AA), ferric reducing antioxidant power (FRAP), total phenolic content (TPC), and individual phenolic compounds were evaluated. Digestive stability and post-digestion bioaccessibility were also assessed using a standardized in vitro gastrointestinal digestion model. The developed quadratic models exhibited high statistical significance for TPC and FRAP responses (p < 0.001), with coefficients of determination (R2) of 0.9949 and 0.9853, respectively. The optimum thermosonication conditions were identified as 40 degrees C, 6.75 min, and 64.04% amplitude, under which experimentally validated FRAP and TPC values reached 12.86 mmol TE/L and 149.77 mg GAE/100 ml, respectively. HPLC-DAD analysis showed that gallic acid and naringin were the pre-dominant phenolic compounds, and that thermosonication promoted greater phenolic retention than conventional pasteurization. In vitro digestion results demonstrated that thermosonicated broccoli juice maintained significantly higher levels of TPC, FRAP, chlorophyll, and AA throughout gastrointestinal digestion, with higher TPC recovery (30.45%) than pasteurized samples (26.22%), indicating improved post-digestion bioaccessibility of phenolic compounds. Similar improvements were observed for antioxidant capacity and chlorophyll retention. Furthermore, PSO and GWO optimization results showed strong agreement with RSM predictions, confirming the robustness of the proposed optimization strategy. Overall, thermosonication was shown to effectively and sustainably enhance the functional quality, antioxidant properties, phenolic stability, and digestive bioaccessibility of broccoli juice.
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İncele - MakaleYalnız künye2026Scopus SJRQ13-D magnetotelluric modeling and radiogenic heat reservoir for EGS development: A case study of the Kestanbol Granitoid intrusion (NW Türkiye)
Büyük, Ersin; Hacioglu, Ozlem; Ayzit, Tolga; Baba, Alper
Enhanced Geothermal Systems (EGS) provide firm, low-carbon baseload power and can contribute to reducing fossil-fuel-based energy generation. Granites and granitoids are particularly favourable EGS hosts due to their widespread occurrence, fracture-controlled permeability, and long-term heat supply from radiogenic decay. This study proposes an EGS development plan for the Kestanbol Granitoid Intrusion (KGI) in NW Anatolia, T & uuml;rkiye, based on a three-dimensional magnetotelluric (MT) model integrated with geochemical constraints on radiogenic heat production (RHP). We invert MT data acquired at fifty unevenly spaced sites to image the 3D resistivity structure of the KGI and its surroundings, resolving a highly resistive plutonic body bounded by relatively conductive fault-fracture zones. To quantify the radiogenic heat reservoir, we determine RHP rates from uranium, thorium, and potassium concentrations measured on twenty-seven rock samples from the KGI and adjacent lithologies, and integrate these values with the MT-derived pluton geometry. When combined with the regional stress regime, the integrated results indicate that the KGI hosts elevated RHP relative to surrounding rocks and that its internal structure and fault-controlled permeability architecture are favourable for EGS development. In particular, the north-western margin of the KGI emerges as the most promising target for injection-production well pairs. This workflow demonstrates how integrated MT, geochemical, and structural analyses can provide a quantitative, site-specific basis for EGS prospect ranking and drilling strategy in radiogenic granite/granitoid provinces. Overall, we propose a site-specific and risk-aware EGS development plan for the KGI that couples subsurface structure, radiogenic heat supply, and permeability architecture, providing a transferable framework for assessing radiogenic granite/granitoid provinces.
AtıfWoS1İncele - MakaleYalnız künye2026Scopus SJRQ2Ramifications of Türkiye's public engagement with polar regions
Limon, Onur; Caymaz, Ebru; Gurdal Limon, Elif; Demirayak, Ozgur; Dal, Adnan; Özsoy, Burcu
This study examines how T & uuml;rkiye's National Polar Science Programme (NPSP) and the National Polar Science Symposium (NPSS) define and implement public engagement within the country's emerging polar research framework. Situating T & uuml;rkiye's experience within broader international debates on public engagement in emerging and internationally governed scientific domains, the analysis draws on core science communication theories, including deficit-dialogue-participation models, typologies of public engagement, and co-production perspectives. Methodologically, the study employs qualitative document analysis of ten NPSP Monitoring and Assessment Reports (2018-2022) and seven NPSS abstract books (2017-2023), using an iterative and theory-informed coding process. The findings indicate that public engagement is predominantly shaped by informational and visibility-oriented strategies, while dialogic elements are gradually emerging through education- and youth-focused initiatives. However, institutionalised participatory mechanisms enabling public influence on research agendas remain limited. The study concludes that T & uuml;rkiye's public engagement trajectory reflects a hybrid and incremental configuration shaped by institutional development within an internationally governed research context. By treating the Turkish case as an analytically comparative example rather than a context-specific exception, the article contributes to international discussions on how public engagement is structured and institutionalised in emerging polar and climate research programmes.
- MakaleYalnız künye2026Scopus SJRQ1Polar science diplomacy of Türkiye: the Second International Polar Year case
Limon, Onur; Gurdal Limon, Elif; Caymaz, Ebru; Demirayak, Ozgur; Dal, Adnan; Özsoy, Burcu
This article examines T & uuml;rkiye's participation in the Second International Polar Year (IPY-II, 1932-1933) as a historically grounded and underexplored case of early science diplomacy. IPY-II coordinated interdisciplinary polar research across forty-four countries, and T & uuml;rkiye's involvement during the early Republican period offers fresh insight into interwar scientific cooperation. The article documents T & uuml;rkiye's scientific and institutional contributions and analyses them through the reciprocal framework of science impacting diplomacy and diplomacy impacting science. Drawing on archival documents, official correspondence, parliamentary records, and contemporary newspapers, supplemented by expert interviews, it assesses the case against an explicit definition of science diplomacy. T & uuml;rkiye's meteorological data, later incorporated into the synoptic weather maps of the Northern Hemisphere, were scientifically significant, institutionally coordinated, and internationally recognised, yet shaped by asymmetrical hierarchies. The case enriches the historical understanding of science diplomacy by non-hegemonic states.
- MakaleYalnız künye2026Scopus SJRQ2Computational gamma-ray attenuation and fast-neutron removal cross-section assessment of CrN, AlCrN and AlTiCrN ceramic coatings using EGS4 Monte Carlo and Phy-X/PSD
Sirin, Murat; Kaya, Selim; Aktarer, Semih Mahmut; Baltas, Hasan; Küçükömeroglu, Tevfik
In this study, the computationally predicted gamma-ray attenuation behavior and fast-neutron removal cross-section characteristics of micrometre-scale CrN, AlCrN, and AlTiCrN ceramic coatings produced via cathodic arc evaporation were investigated. The shielding parameters were not measured by direct gammaor neutron-transmission experiments; instead, mass attenuation coefficients (MAC, mu/rho) in the 0.05-2.50 MeV range were obtained from EGS4 Monte Carlo simulations and Phy-X/PSD calculations, and the agreement between the two computational datasets was evaluated. Energy-dependent attenuation parameters, including half-value layer (HVL), mean free path (MFP), effective atomic number (Zeff), radiation protection efficiency (RPE), and kerma coefficients, were calculated. Statistical comparison showed good consistency between EGS4 and Phy-X/PSD for MAC, RPE, HVL, MFP, and kerma coefficients, whereas Zeff exhibited larger method-dependent deviations. All coatings showed higher attenuation at low photon energies due to the photoelectric effect, while Compton scattering dominated at intermediate energies. Among the investigated coatings, CrN exhibited the most favorable calculated gamma-ray attenuation indicators, with lower HVL and MFP values and higher RPE values. The macroscopic fast-neutron removal cross-section (Sigma R) was also calculated as a first-order neutron attenuation indicator, and CrN showed the highest Sigma R value. Considering their limited thickness of approximately 2.3-2.8 mu m, these coatings should not be regarded as replacements for conventional bulk radiation shields. Instead, nitride-based ceramic coatings may serve as secondary or multifunctional surface layers in space-restricted components requiring local radiation attenuation and mechanical durability.
- Doktora TeziAçık Erişim2025Dynamic analysis of COVID-19 model
Pınar Açıkgöz
In this thesis, the spread dynamics of the Covid-19 pandemic were investigated using mathematical modeling methods. The study first addressed the SIR and its derivatives, which are classical deterministic models, and conducted analyses of the fundamental reproduction number (R_0 ), equilibrium points, and stability of these models. Subsequently, mathematical models developed for Covid-19 were analyzed, investigating the positivity, boundedness, and invariant regions of the solution. The memory effect and long-term dependency structure of the epidemic were investigated using fractional-order differential equations. Fractional models based on Caputo, Conformal, and Grünwald-Letnikov derivatives were solved using analytical and numerical methods. In this context, the Homotopy Analysis Method (HAM), q-HATM, Variational Iteration Method (VIM), and Non-Standard Finite Difference (NSFD) schemes were applied, and the resulting solutions were comparatively evaluated. Additionally, the uncertain spread of Covid-19 was modeled using stochastic differential equations, and numerical solutions were obtained using the Euler–Maruyama, Milstein, and Runge–Kutta methods. Furthermore, time-delay differential equations were used to incorporate effects such as immunity and incubation period into the model. The results demonstrate that the spread of Covid-19 can be more realistically explained not only with deterministic models but also with fractional-order and stochastic models. In this respect, the thesis contributes to both the epidemiological modeling literature and the applications of fractional analysis and numerical methods.
- MakaleAçık Erişim2025Mediator and Regulatory Effects of Word of Mouth on The Effect of Electronic Servicescape on Brand Equity
Yildiz, Emel; Koçan, Mahmut
The main purpose of this study is to determine the mediator and regulatory role of electronic word-of-mouth communication (e-WOM) in the effect of service environments of online marketplace and business-to-consumer websites on brand equity. In addition, the study examines the effect of electronic servicescape (e-servicescape) on e-WOM and brand equity and the effect of e-WOM on brand equity. In the research, 402 usable questionnaires were obtained from consumers who purchased products from the Internet in the last six months. SPSS and AMOS programs were used to test the reliability, validity and research hypotheses of the e-servicescape, brand equity and e-WOM scales. As a result, it has been determined that e-servicescape affects brand equity and e-WOM, and e-WOM has a partial mediation role in the positive effect of e-servicescape on brand equity. It has been determined that e-WOM has a moderator role inc the effect of e-servicescape (entertainment value, usability, relevance of information, customization, and interaction) on brand equity. The research's most significant contribution to the literature lies in highlighting the mediating and regulatory role of e-WOM in the impact of the websites' e-servicescape on brand equity. This study holds significance as it explores the servicescapes and brand equity of websites exclusively operating in online marketplaces and B2C e-commerce.
- MakaleAçık Erişim2025Sensory and physicochemical characteristics of mulberry leathers enriched with sesame, almond, sunflower seeds, coconut, and peanut
Küçük, Murat; Baltaci, Cemalettin; İlyasoğlu, Huri; Karpuz, Omer; Yilmaz, Firat; Kılınç, Kagan; Güler, Burak; Topkaya, Gamze
This study aimed to investigate the utilization of sesame, sunflower seed, almond, peanut, and coconut as condiments for the enrichment of mulberry leather, known locally as mulberry pestil. The investigation involved a comprehensive analysis encompassing proximate composition, mineral content, color, physicochemical, and sensory properties. The studied parameters of enriched samples were compared with those of the plain sample. Employing multivariate statistical techniques enabled the differentiation of the enriched leather samples. Consequently, the leather samples were categorized into three groups by the principal component analysis according to their physicochemical and chemical attributes. Strong positive correlations were observed among the studied parameters, as indicated by Spearman's rank correlation coefficients. The physicochemical and chemical properties of enriched samples exhibited substantial variability. The enriched products had abundant calcium, potassium, magnesium, iron, and zinc levels. These findings revealed that incorporating these condiments enhanced the nutritional values of leather samples, especially in terms of minerals. 100 g of the enriched mulberry leathers had 68.0-70.7 g of carbohydrate, 4.6-5.7 g of protein, 3.6-5.9 g of fat, and 336-359 kcal of energy value. The enriched products might be proposed to provide nutrients and energy in emergencies, especially for adolescents and people affected by disasters.
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İncele - MakaleYalnız künye2025Labour Market Aspirations of Ukrainian Refugees: Determinants and Challenges
Kocağ, Esra Karapınar
This study analyses factors influencing Ukrainian refugees’ migration for work, using household-level data from the UNHCR Survey of Intentions and Perspectives of Refugees from Ukraine. Applying logistic regression and propensity score matching (PSM), it examines key determinants, including gender, age, education, residence status, and planned return duration. Results show men are more likely than women to migrate for work (odds ratio: 2.01), highlighting gender-specific barriers. Older individuals and those with higher education levels exhibit lower migration likelihoods. Refugees in private accommodations are less likely to migrate, suggesting housing stability affects mobility. Longer planned return durations increase work-related migration (odds ratio: 1.25), while travelling with a larger family reduces it. These findings highlight the complexity of refugee labour market integration and the need for policies addressing gender disparities, housing stability, and long-term employment prospects to support refugees’ economic inclusion.
- MakaleAçık Erişim2025The Impact of Foreign Direct Investments and Economic Growth on Employment: The Case of Palestine
Karaaslan, İbrahim
Today, foreign direct investments are a powerful economic growth and job creation tool. The study's data, which aims to analyze the effects of FDI and economic growth on employment in the Palestinian context, covers the period between 1995-2022 and consists of annual data. Time series cointegration analysis was preferred as the econometric analysis method. The stationarity of the variables was evaluated with ADF and PP unit root tests, and it was determined that they were non-stationary. As a result of the Johansen cointegration test, a long-run relationship between the variables was determined. According to the FMOLS, DOLS, and CCR estimation results, a statistically significant positive relationship was found between the EMP variable used as the dependent variable in the study and the FDI and lnGDP variables at a 5% confidence level. Finally, according to the Toda Yamamoto causality test results, a statistically significant unidirectional causality relationship was found between the FDI and lnGDP variables and the EMP variable at a 5% level. These results show that FDI in Palestine can create employment and that economic growth has a substantial impact on employment.
- MakaleAçık Erişim2025Production of Pure PVC, Graphene and Carbon Nanotube-Doped PVC Electrospun Nanofiber Membranes: A Highly Effective Method for Removing Acid Blue 74 Dye from Wastewater
Bozbeyoglu, Pinar; Ozkan, Vildan
Dyeing wastewater is produced by various industries, including textiles, cosmetics, tanning, and plastics. Annually, about 1.6 million tons of dyes are manufactured, with 10-15% released into the environment as wastewater. Organic dyes are particularly harmful pollutants, even at low concentrations. The adsorption technique has proven effective for removing these pollutants from water, significantly relying on the properties and efficiency of the adsorbent. Nanofibers are emerging as promising adsorbents for dye removal due to their unique properties and high efficiency. This research focuses on polymeric nanofibers to address global dye pollution, as they effectively eliminate various dyes and contaminants. However, their mechanical properties can be a limitation under harsh conditions. To enhance their strength and hydrophilicity, incorporating nanofillers like carbon nanotubes and graphene oxide has shown significant benefits. This study examines the impact of different nanofibers on the adsorption of Acid Blue 74 (AB74) dye. Pure, carbon nanotube-doped, and graphene-doped PVC nanofibers were produced via electrospinning. Their properties were analyzed using FTIR and SEM, while key parameters such as contact time, adsorbent dosage, dye concentration, and pH were assessed to understand the adsorption behavior. Additionally, dye adsorption isotherms and kinetics were investigated.
AtıfOpenAlex2İncele - MakaleAçık Erişim2025A comprehensive assessment of the antioxidant capacity and sensory properties of wheat-based cereal breads produced in different formulations
Burnaz, Nesibe Arslan; Hendek, Muge; Baltaci, Cemalettin
In this study, it was aimed to investigate the physicochemical, sensory and antioxidant properties of some wheat-based cereal bread types that are offered for sale and frequently consumed in the markets in Turkey. Bread types were produced with the help of a home-type bread-making machine, and 100% white wheat flour bread (WB) was used as a control. Sensory evaluations were determined by using the nine-point hedonic scale method. Total phenolic contents were determined by using Folin-Ciocalteau’s method. Antioxidant capacities were determined by using ABTS, DPPH, and FRAP assays. Besides, all data were evaluated by using principal component analysis (PCA) to discriminate the properties of bread types. Whole-wheat bread showed the highest antioxidant potentials (200.00µM TEAC for ABTS, 147.50µM TEAC for DPPH, 116.94µM TEAC for FRAP) and the highest amount of phenolic content (64.30mg GAE/100gDW), but a low overall acceptability score (6.00/9.00). As a result, the addition of wheat-based cereal flours affected the antioxidant, sensory, and physical properties of the produced breads (p<0.05). Different cereal flours added to the bread formulation positively affected the antioxidant properties of all breads, but only wheat bran and oat flour addition positively affected the overall sensory acceptability of the bread types. Hereby this study, individuals will be made aware of consuming bread types enriched with different cereal flours including important micronutrients instead of WB which is so poor in micronutrients. The study also provides convenience to individuals in the production of these breads in a home-type bread-making machine. This study reveals the various data for functional properties of bread types that are consumed less than WB.
- MakaleYalnız künye2025Vision Foundation Models and Rule-Based Approaches for Roof Surface Segmentation and Photovoltaic Potential Analysis in Urban Areas
Özdemir, Samed; Yavuzdoğan, Ahmet
This study presents two methods for rapidly and effectively determining the photovoltaic (PV) potential of building roofs in urban areas using aerial photographs and point cloud data. In the first method, the Segment Anything Model (SAM) and Contrastive Language Image Pre-Training (CLIP) models are used to detect roof surfaces and obstacles from aerial photographs. In the second method, the Random Sample Consensus (RANSAC) and Density-Based Spatial Clustering of Applications with Noise (DBSCAN) algorithms are employed to identify roof surfaces from Light Detection and Ranging (LiDAR) point clouds. Through the first proposed method, the performance of current deep learning approaches in 2.5D PV potential analysis is investigated, while the second approach examines the performance of 3D PV potential analysis compared to the 2D approach. In PV potential analysis, the Photovoltaic Geographical Information System (PVGIS) Application Programming Interface (API) was utilized. The analysis is conducted based on roof parameters obtained through both proposed methods. In building detection, the first approach achieved an Intersection over Union (IoU) score of 94.29%, whereas the second approach attained an IoU score of 91.23%.
- MakaleAçık Erişim2025The Solutions of Caputo-Fabrizio Random Fractional Ordinary Differential Equations by Aboodh Transform Method
Merdan, Mehmet; Şahin, Yasin
The primary objective of the paper is to employ the Aboodh transformation to solve Caputo-Fabrizio ordinary fractional differential equations. Furthermore, the methodology described is used to solve some common fractional differential equations. Analyzed using the Aboodh Transformation Method are random ordinary differential equations derived by randomly picking the coefficients or initial conditions of Caputo-Fabrizio fractional ordinary differential equations. The initial conditions or coefficients of the equations are converted into random variables distributed according to Normal, Uniform, and Exponential distributions. The probability characteristics, including expected value, variance, coefficient of variation, and confidence interval, of the random ordinary differential equations solved are computed using the MATLAB (2013a) package software. The acquired results are then shown and discussed.
AtıfOpenAlex1İncele - MakaleAçık Erişim2025Trade Networks and Cultural Interaction in Ancient Mesopotamia: The Role of Ebla Merchants in The Middle and Late Bronze Age
Aktürk, Mehmet Yunus
Ebla was pivotal in shaping the economic, political, and cultural interactions between Mesopotamia and the Levant during the Middle and Late Bronze Ages. Emerging as a significant power in the 24th century BCE, Ebla controlled strategic trade routes connecting Mesopotamia, the Levant, and Anatolia, achieving economic prosperity while also establishing diplomatic dominance. The city leveraged its control over trade routes not only for economic gain but also as a tool to influence regional power dynamics and strengthen cultural ties. The archives of the Ebla Royal Palace G provide critical insights into the organization of trade networks, the diversity of traded goods, and the political and cultural impacts of these exchanges. The trade of goods such as grains, textiles, lapislazuli, and gold not only facilitated economic growth but also promoted the spread of religious practices, the development of linguistic standards, and the transfer of technological innovations. Ebla’s merchants served as cultural bridges between Mesopotamia and the Levant, enabling the exchange of knowledge, art, and technical expertise among diverse societies. The city’s dominance over trade routes was reinforced through strategic alliances with powerful city-states like Mari and Akkad, further enhancing Ebla’s influence in regional politics. Diplomatic agreements ensured the security of trade routes and simultaneously bolstered Ebla’s political supremacy. This article analyzes the multifaceted impacts of Ebla’s trade networks, emphasizing the transformative role of trade in regional integration and cultural interaction.
AtıfTR Dizin1İncele - MakaleAçık Erişim2025Siber zorbalığın sinemaya yansıması: cyberbully, suıcıde room ve chatrom filmleri
Kucur, Ayşe Bilginer; Çelik, Sinan
Yapılan bu çalışma, bilgisayar kullanımı ve internet aracılığıyla gerçekleşen siber zorbalık eyleminin sinemaya yansıma biçimini incelemektedir. Sinema toplumsal anlamda yaşanan gelişmeleri perdeye taşıyarak dönemin sosyolojisini de yansıtmaktadır. Yapılan bu çalışma günümüzün bireysel ve toplumsal sorunlarından biri olan siber zorbalık olgusunu, Cyberbully, Suicide Room ve Chatroom filmleri üzerinden ele alarak, bu filmleri nitel içerik analizi yöntemiyle değerlendirmektedir. Siber zorbalığı rolleri, türleri, sonuçları ve siber zorbalığa dair önlemler üç film üzerinden analiz edilecektir. Örnek olarak seçilen her film, siber zorbalığın bireyler ve çevresel faktörler arasındaki etkileşimi farklı açılardan ele almakta ve siber zorbalığın sonuçlarını ortaya koymaktadır. Yapılan bu çalışma, siber zorbalığın yaygınlaşmasıyla birlikte toplumda bu konu hakkında farkındalık kazandırmanın önemini vurgulamaktadır. Ayrıca çalışma da elde edilen veriler doğrultusunda siber zorbalığa karşı etkili mücadele yöntemleri ve önleyici stratejiler de ele alınmaktadır. Bulgular, bireylerin hem siber zorba hem de mağdur olabildiğini göstermektedir. Örnek filmlerde, siber zorbalığın akademik ve sosyal başarısızlık ile intihara yol açtığı dikkat çekmektedir. Ayrıca, aile, okul yönetimi ve arkadaş çevresinin yetersizliği intihar vakalarıyla ilişkilendrilmiştir.
- MakaleAçık Erişim2025Portfolio Selection with AHP and TOPSIS Methods: An Application in BIST
Soydaş, Şafak Sönmez
In this study, the intend is to create portfolios at low, medium, and high-risk levels for firms operating in the fabrication sector in 2023 by utilizing efficiency analysis and multi-criteria decision-making methods, AHP and TOPSIS. The sample of the study comprises companies from the basic metal and textile, apparel, and leather industries listed in the BIST manufacturing sector. In the mentioned year, there were 28 firms in the basic metal industry and 27 firms in the textile, apparel, and leather industries. From the overall of 55 companies, data from 48 firms were available for the year 2023 due to recent initial public offerings, and these were included in the analysis. According to TOPSIS analysis results, companies in the low-risk group, based on firm codes, are (T1, T2, T6, M4, T15, T3), medium-risk group companies are (T5, T10, T24, T16, M14, M10), and high-risk group companies are (M16, M17, M20, M18, M22, M19). Based on risk group criteria, firms in the high-risk group include (T15), companies in the medium-risk group are (T1, T2, T3, T5, T6, T10, T24), and firms in the low-risk group are (T16, M4, M10, M14, M16, M17, M18, M19, M20, M22). As indicated by aftermath of the Spearman correlation analysis, a positive correlation was observed amid the TOPSIS scores and the risk groups (r = 0.412); however, this connection is not statistically important (p = 0.090).
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