Bartın Üniversitesi Araştırma ve Akademik Performans Sistemi
DSpace@Bartın, Bartın Üniversitesi’nin bilimsel araştırma ve akademik performansını izleme, analiz etme ve raporlama süreçlerini tek çatı altında buluşturan bütünleşik bilgi sistemidir.
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Öğe Türü: Yayın , SPACE: Smart priority-aware congestion elimination in urban traffic systems(Institute of Electrical and Electronics Engineers Inc., 2026) Singh, Amritpal; Chahal, Prabhjot Kaur; Aslam, Nauman; Sohaib, Rana Muhammad; Demirbaga, Ümit; Demirbaga, Ümit; Mühendislik Mimarlık ve Tasarım Fakültesi, Bilgisayar Mühendisliği BölümüThe rapid growth in the number of vehicles on urban road networks has significantly increased traffic congestion, leading to longer travel times, increased fuel consumption, and increased carbon emissions in the environment. Limited road capacity and unpredicted road incidents, such as vehicle crashes and stalled vehicles on the roads, further impact traffic flow and create bottlenecks. However, these disturbance not only affect the regular passengers, but emergency vehicles such as ambulances, fire engines, and police units also suffered, where response time is critical for public. Add-on, the selection of inefficient routes during these situations also increase in excessive fuel consumption and increased greenhouse gas emissions (C O2). To address these challenges, this paper proposes an eco-aware and weighted-based routing framework supported by an orchestratordriven traffic management architecture. The proposed approach integrates real-time traffic information, incident detection, and vehicle priority classification to dynamically evaluate candidate routes between an origin and destination. The orchestrator uses a cost-based routing mechanism that incorporates multiple traffic and environmental metrics, including travel time, congestion index, and carbon emissions. Furthermore, a priority-aware mechanism ensures that high-priority vehicles are assigned routes that emphasize minimal travel time, while lower-priority vehicles are guided through environmentally efficient paths considering the Net Zero targets.Öğe Türü: Yayın , Sensitivity of spaceborne LiDAR, optical, and SAR features for forest biomass modelling: A GEDI–Sentinel-2–SAOCOM analysis(International Society for Photogrammetry and Remote Sensing, 2026) Özdemir, Eren Gürsoy; Narin, Ömer Gökberk; Abdikan, Saygın; Özdemir, Eren Gürsoy; Ulus Meslek Yüksekokulu, Mimarlık ve Şehir Planlama BölümüThis study evaluates the synergy of NASA’s Global Ecosystem Dynamics Investigation (GEDI) spaceborne LiDAR, Sentinel-2 multispectral imagery, and L-band Argentine Satellite System for Emergency Management (SAOCOM) 1A SAR data for aboveground biomass (AGB) estimation in the Belgrade Forest, Istanbul. Utilizing 1,356 GEDI L4A footprints as reference data, the research incorporates ten Sentinel-2 bands, five optical indices (NDVI, NDVIred, EVI, LSWI, CIre), SAR backscattering coefficients (σ°HH and σ°HV), polarimetric H/A/α polarimetric decomposition parameters and dual polarimetric radar vegetation indices, namely the Dual-Pol Radar Vegetation Index (DpRVI). High-dimensional feature spaces were optimized through ensemble-based, correlation-based, and hybrid RFECV selection strategies before evaluating four machine learning architectures: Multi-layer Perceptron (MLP), Kernel Ridge, Lasso, and Elastic Net. The MLP model achieved the highest predictive accuracy (R2 = 0.20, RMSE = 62.93 Mg/ha, MAE = 51.31 Mg/ha), outperforming linear regularization models, which exhibited R2 values between 0.15 and 0.16. Sensitivity analysis identified red-edge and SWIR bands, alongside indices such as NDVIred, LSWI, and CIre, as the most robust predictors, while the contribution of SAR-derived features remained comparatively limited. These findings underscore the efficacy of non-linear deep learning architectures and multi-source data fusion in resolving complex biophysical interactions within heterogeneous forest environments.Öğe Türü: Yayın , Quality of life in high-risk pregnancies: A scale development study(Lippincott Williams and Wilkins, 2026) Ada, Güleser; Bidik, Nazlı Ünlü; İlçioğlu, Kevser; Ada, Güleser; Sağlık Bilimler Fakültesi, Ebelik BölümüBackground and Objectives: The care process is crucial in improving quality of life and providing comfort during a high-risk pregnancy. This study aims to develop a “Quality of Life Scale in High-Risk Pregnancies” in order to identify the areas most affecting the quality of life of these women and to guide steps for improving their quality of life. Methods: This methodological study, a scale development study, was conducted in 3 stages. First, a draft scale was created with a 5-point Likert-type item pool consisting of 22 items, prepared in line with the literature. The items were then sent to 11 experts in the field for evaluation of their semantics and content. Following their feedback, 1 item was removed, and the scale items were finalized. After conducting factor and reliability analyses, with data from 210 pregnant women diagnosed with high-risk pregnancies, the scale was refined to 16 items. Data were collected face-to-face through a questionnaire developed by the researchers. Results: A total of 210 women with high-risk pregnancies, with a mean age of 29.41 ± 5.18 years, participated in the study. One item was excluded from the analysis based on expert opinion, and 5 items were removed during factor analysis because they overlapped, fell outside the theoretical dimensions, and had factor loadings below 0.30. The developed scale was determined to consist of 16 items and 3 sub-dimensions. The Cronbach’s alpha internal reliability coefficient for the scale was 0.860, and the reliability coefficients for the sub-dimensions ranged from 0.817 to 0.844, indicating relatively high reliability. Conclusion: This study demonstrates that the Quality of Life Scale in High-Risk Pregnancies is a valid and reliable measurement tool. This scale, which can assist healthcare professionals in assessing the quality of life in high-risk pregnancies, can also be adapted to different cultures.Öğe Türü: Yayın , Porosity effect of metal foam used in a multi-tube heat exchanger latent thermal energy storage system(ICTEA: International Conference on Thermal Engineering, 2026) Kaya, Hüseyin; Gürsoy, Emrehan; Gürdal, Mehmet; Gedik, Engin; Kaya, Hüseyin; Mühendislik Mimarlık ve Tasarım Fakültesi, Makine Mühendisliği BölümüSince metal foams play an important role in enhancing the performance of performance of phase change materials (PCMs) in latent heat thermal energy storage (LHTES) systems, the effect of different porosity values was analyzed. Two geometries, circular and hexagonal for shells, and circular and elliptical for tubes, were studied in conventional multi-tube heat exchangers. The Darcy-Brinkman-Forchheimer model governed the equations, and enthalpy-porosity approximation was applied during melting. The PCM used was organic RT35HC, combined with aluminum foam with different porosity (ε = 0.85, 0.90, and 0.95 with pore density ω = 20 PPI). Hybrid nano PCM (HyNPCM) with φ = 6.0% volume concentration was formed by mixing graphene oxide and MXene nanoparticles into the PCM. Results indicated that the 0.85 porosity value had the shortest melting time with H-Elliptical model which is 1/5 time of 0.95 porosity. The H-Elliptical reached complete melting 30 seconds earlier than the C-Circle, storing approximately 0.7% more energy.Öğe Türü: Yayın , Performance of bridges under the Kahramanmaras earthquake doublet(CRC Press, 2026) Baş, Selçuk; Apaydın, Nurdan Memişoğlu; Catbas, Fikret Necati; Baş, Selçuk; Mühendislik Mimarlık ve Tasarım Fakültesi, İnşaat Mühendisliği BölümüThe study summarizes seismic damages and earthquake performance of bridges affected by the Feb 6, 2023 Kahramanmaras, Turkiye earthquakes. The site observations clearly reveal the importance of transverse portal beams at the support and the middle of deck span, which enables the deck to work as a diaphragm. The gap between the shear blocks and the girder beams should be reduced, and the rubber pads are also recommended to be used on both sides of shear blocks. A limitation to deck movement in the longitudinal direction is also obtained necessary to prevent the expansion joint damages resulting from high displacement. Thus, it is underlined to use additional structural stiffening elements particularly at the abutment points, such as dampers. In attempt to reduce soil-based damages to the bridges, it is notably highlighted for bridge sub-and-superstructures to design piles by considering the soil improvement.
