Recep Tayyip Erdoğan Üniversitesi Kurumsal Akademik Arşivi
DSpace@RTEÜ, Recep Tayyip Erdoğan Üniversitesi tarafından doğrudan ve dolaylı olarak yayınlanan; kitap, makale, tez, bildiri, rapor, araştırma verisi gibi tüm akademik kaynakları uluslararası standartlarda dijital ortamda depolar, Üniversitenin akademik performansını izlemeye aracılık eder, kaynakları uzun süreli saklar ve yayınların etkisini artırmak için telif haklarına uygun olarak Açık Erişime sunar.
Güncel Gönderiler
Optimizing malignancy prediction: a comparative analysis of transfer learning techniques on ebus images
(European Respiratory, 2025) Özçelik, Ali Erdem; Özçelik, Neslihan; Bendeş, Emre; Işık, Gizem Özcibik; Topaloğlu, Ömer
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Engineering high-performance BiSeTe ultra-thin film on flexible FEP
(Elsevier, 2026) Yüzüak, Gizem Durak; Yüzüak, Ercüment
Flexible thermoelectric (TE) devices hold great promise for powering wearable electronics by harvesting the temperature difference between human skin and the environment. Conventional Bi2Te3, although efficient, suffers from rigidity and limited suitability for flexible applications, while organic alternatives typically lack sufficient TE performance. Here, we demonstrate an n-type BiSeTe thin film deposited on a flexible fluorinated ethylene propylene (FEP) substrate, incorporating a Cr buffer layer, achieving a room-temperature power factor of -3.9 mu W.cm-1.K-2, which is within the range reported for flexible thin-film TE devices on polymer substrates. The film exhibits excellent mechanical resilience, retaining 90 % of its initial conductivity after 5000 bending cycles, and shows high thermal stability over 50 heating-cooling cycles with deviations below 1.5 %. A four-leg n-type prototype generates 10 mV and 70 nW at Delta T = 40 K, demonstrating its potential for powering low-energy wearable sensors. This work presents a scalable inorganic thin-film TE platform that effectively balances mechanical flexibility, device stability, and practical energy conversion performance for wearable and localized power generation applications.
Effects of clinical pilates program on exercise capacity, respiratory function, and quality of life in patients with interstitial lung disease (ILD)
(European Respiratory, 2025) Karaca, Seda
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Psychological barriers to exercise in interstitial lung disease (ILD): the role of kinesiophobia and body awareness
(European Respiratory, 2025) Karaca, Seda
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CFD-based analysis of chimney performance optimization for the Manzanares pilot plant
(Oxford University Press, 2026) Cüce, Pınar Mert; Cüce, Erdem; Alshahrani, Saad
This research conducts an extensive computational fluid dynamics (CFD) analysis aimed at optimizing the geometric configuration of solar chimney power plants (SCPPs), with particular emphasis on the Manzanares pilot plant. The research analyses the effects of chimney diameter and divergent chimney design on system performance under steady-state conditions at 1000 W/m2 solar irradiance and 300 K ambient temperature. A validated three-dimensional CFD model with a 90° symmetry sector is developed in ANSYS FLUENT. The model is verified through mesh independence and benchmarked against experimental results, showing excellent agreement with measured power output and airflow velocity. The results demonstrate that chimney geometry is a dominant performance-governing factor in large-scale SCPPs. Increasing the chimney diameter up to 2.5 times the reference value enhances the power output by 97%, reaching ~110 kW; further enlargement leads to performance deterioration due to reduced pressure potential at the turbine. More importantly, the adoption of a divergent chimney configuration yields a substantial performance improvement. An optimal chimney exit-to-inlet area ratio of 4 increases the power output to 369.4 kW, corresponding to a 5.6-fold enhancement compared to the reference cylindrical chimney. At this optimal configuration, the maximum air velocity and mass flow rate reach 28.7 m/s and 2137.8 kg/s, respectively. These findings demonstrate that multifold power enhancement can be achieved through aerodynamic optimization of chimney geometry alone, without increasing chimney height, offering a practical, cost-effective, and structurally safer design pathway for future large-scale SCPP installations.
