Department of Engineering Sciences, Article

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Recent Submissions

Development and characterization of manganese-doped hydroxyapatite-incorporated wet-electrospun polycaprolactone scaffolds Samiei, Alaleh; Jodati, Hossein; Evis, Zafer; Keskin, Dilek (2025-12-12) Bioceramic-incorporated polymer-based scaffolds have gained more interest as a promising and effective approach in bone tissue engineering (BTE) applications. This study is the first to investigate the role of incorporated...
A novel biomechanical measure to determine knee instability after ACLR: variability at knee rotational axis İlicepınar, Ömer Faruk; İmir, Mehmet; Cengiz, Berat Can; Gürses, Senih; Menderes, Yiğitcan; TURHAN, EGEMEN; Dönmez, Gürhan; KORKUSUZ, FEZA (2025-12-01) Introduction: Hop distance tests are commonly used to determine when it is safe to return to sports (RTS), but symmetrical test results do not necessarily indicate the absence of biomechanical deficiencies. Three-dimension...
A dynamic interaction model for seismic analysis of cylindrical tunnels Mengi, Yalcin; Korkut, Fuat; Tokdemir, Turgut (2025-11-01) A meshless computational model is proposed for seismic analysis of cylindrical tunnels, involving two stages. In the first stage, within the framework of soil-structure interaction (SSI) formulation developed in literature...
Correlations of Ground-Motion Intensity Measures Observed in the Turkish Strong-Motion Database Ertuğrul, Zehra (2025-10-01) This study aims to develop correlation models for ground-motion intensity measures based on the Turkish strong-motion data. The intensity measures under examination are horizontal spectral accelerations (SAs) with periods ...
Behaviour of foot regions at bipedal quiet stance Hassanpour, Maryam; Yaradanakul, Naci Barış; Alcan, Veysel; ZİNNUROĞLU, MURAT; Gürses, Senih (2025-07-01)
Experimental and numerical failure analysis of Thompson hip prosthesis Motameni, Ali; FARUKOĞLU, ÖMER CAN; Gürbüz, Rıza; KORKUT, İHSAN (2025-06-30) Background There are different surgical procedures to fix femoral head-neck fractures, such as total hip arthroplasty and hemiarthroplasty. Under optimal conditions, the inserted prosthesis should last a long time, possibl...
Hydroxyapatite and polycaprolactone composites as potential biomaterials in biomedical applications Copur, Oyku; Tezcaner, Ayşen; Evis, Zafer (2025-06-14) Hydroxyapatite and polycaprolactone (HA/PCL) composites show significant potential in biomedical applications, especially in bone tissue engineering. HA's high hardness and brittleness, the low stiffness and flexible mecha...
Effect of mandrel position on bending quality in the rotary draw bending process Ozcan, Bahadır; Evis, Zafer; Ozturk, Fahrettin (2025-01-01) The mandrel plays a critical role in supporting tubes within the bending region during tube bending operations. This research explores the impact of varying mandrel positions on bending quality. Therefore, both experimenta...
A comparative review of machinability in AA2XXX and AA7XXX heat-treatable aluminum alloys: Focus on AA7050-T7451 and AA2050-T84 Ates, Elvan; Evis, Zafer; Ozturk, Fahrettin (2025-01-01) Heat-treated AA7050-T7451 with high fatigue strength and corrosion cracking resistance, which is frequently used in the aerospace industry, and third generation AA2050-T84 with low density, high fracture toughness, and hig...
Mechanical and biological evaluation of β-dicalcium silicate/dicalcium phosphate-based cements: promising materials for biomedical applications Alshemary, Ammar Z.; Marandi, Almataz Bellah; Ali, Daver; Köse, Tuğba; Dalgic, Ali Deniz; Motameni, Ali; Evis, Zafer (2025-01-01) This study explores the synthesis and evaluation of β-Dicalcium silicate and Dicalcium phosphate-based cements for biomedical use. β-Tricalcium phosphate was synthesized using microwave-assisted wet precipitation, while β-...
Assessing landslide susceptibility of Türkiye at drainage basin scale: a semi-quantitative approach Okalp, Kıvanç; Akgün, Haluk (2025-01-01) This study uses the Analytical Hierarchy Process (AHP) integrated with Geographic Information Systems (GIS) to assess landslide susceptibility in Türkiye at a drainage basin scale. Türkiye's mountainous terrain makes it hi...
Experimental and numerical investigation of mechanical properties of PLA-based auxetic structures Taşdemir, Mehmet; TOKTAŞ, İHSAN; Motameni, Ali; Evis, Zafer (2025-01-01) In this study, two innovative unit cell designs were developed by combining different auxetic structures from the literature, and they were fabricated using 3D printers, one of the most popular additive manufacturing metho...
Development of strength reduction factors for performance-based seismic design of bridges in far-fault seismic regions Rabaia, Tareq; Dicleli, Murat (2024-11-01) In this paper, strength reduction factors (R-factors) for performance-based seismic design of bridges in far-fault seismic regions are developed. Response spectrum analyses (RSA) and nonlinear time history analyses (NTHA) ...
Experimental and Numerical Investigation of the Flexural Behavior of Reinforced-Concrete Beams Utilizing Waste Andesite Dust Korkut, Fuat; Karalar, Memduh; Motameni, Ali; Althaqafi, Essam; Özdöner, Nebi; Özkılıç, Yasin Onuralp (2024-09-01) During the process of cutting andesite stones, the waste mud is kept in powder form once fully dried. It is difficult to store the waste that is produced as a consequence of the extensive utilization area and consumption o...
Effect of dynamic soil-structure interaction modeling assumptions on the calculated seismic response of railway bridges with single-column piers resting on shallow foundations İmamoğlu, Çağrı; Dicleli, Murat (2024-06-01) In this study, the effect of dynamic soil-structure modelling assumptions on the calculated seismic response of railway bridges with single column piers resting on shallow foundations is investigated. For this purpose, 10 ...
Self-composite silk fibroin membranes for guided bone regeneration: 1 material 3 architectures with intrinsic integrity Atila, Deniz; Gürses, Senih; Tezcaner, Ayşen (2024-06-01) Silk fibroin (SF) takes attention in tissue engineering due to unique features, e.g., excellent biocompatibility/biodegradability with superior mechanical/thermal properties despite its lightweight. Guided bone regeneratio...
The effect of foot somatosensory loss in postural control during Functional reach test in patients with diabetic polyneuropathy: A controlled study Kahveci, Abdulvahap; Cengiz, Berat Can; Alcan, Veysel; Gürses, Senih; ZİNNUROĞLU, MURAT (2024-06-01) Background: In patients with diabetic polyneuropathy (DPN), differences in postural control due to losing the lower limb somatosensory information were reported. However, it is still unclear by which mechanisms the dynamic...
Methods to improve antibacterial properties of PEEK: A review Uysal, Idil; Tezcaner, Ayşen; Evis, Zafer (2024-03-01) As a thermoplastic and bioinert polymer, polyether ether ketone (PEEK) serves as spine implants, femoral stems, cranial implants, and joint arthroplasty implants due to its mechanical properties resembling the cortical bon...
Influence of strut angle and radius on the energy absorption and failure mechanisms in 3-strut, 4-strut and 6-strut lattice structures Ture, Mustafa Okan; Evis, Zafer (2024-01-01) 3D-printed truss structures have remarkable potential in the aerospace and weight-critical technologies fields. However, design parameters need to be carefully considered. A low overhang angle or diameter can result in dis...
Spatiotemporal Evolution of Toddlers’ Regional Foot Pressure Distribution and Center of Pressure at Antero-Posterior Axis During Learning of Standing Pourreza, Elmira; Yaradanakul, Naci Barış; Cengiz, Berat Can; Camurdan, Aysu Duyan; ZİNNUROĞLU, MURAT; Gürses, Senih (2024-01-01) We investigated quiet stance of newly standing toddlers every three months (trimesters) of their second year of life. Their anteroposterior center-of-pressure (CoPx) velocity and centroidal frequency (CFREQ: 2.36 6 0.10 to...

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