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Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Scopus
ISSN 2147-835X · Sakarya University · 1.842 artikel di indeks
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Artikel Jurnal
Investigation of Wear Behavior of TiC Additive Stainless Steel Coatings Produced by High Pressure Cold Spray Method
This article has been retracted following a request from the corresponding author and co-authors. After publication, a disagreement arose regarding authorship contributions. As consensus could not be reached among the authors, the matter was evaluated by the Editorial Board. Based on this…
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Artikel Jurnal
Effect of Glass Fiber Reinforced Polyesters Pipe Wastes on the Properties of Fine Grained Soils
Industrial wastes used as additives in soils are widely applied due to their low cost and ability to prevent environmental pollution. This study investigates the effect of Glass Fiber Reinforced Polyester (GRP) pipe-cutting waste on the shear strength of fine-grained soils. This effect was…
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Artikel Jurnal
Adsorption of Pb(II) From Aqueous Solutions Using Fe3O4@APTES@4-DMAB Nanomaterial
This study investigates the synthesis and characterization of Fe₃O₄ nanoparticles coated with 3-aminopropyltriethoxysilane (APTES) and 4-dimethylaminobenzaldehyde (4-DMAB), aimed at their application in the adsorption of Pb(II) ions from aqueous solutions. The characterization of the…
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Artikel Jurnal
Effect of Cyclic Voltammetry Activation in Hydrochloric Acid on the Oxygen Reduction Performance of Screen-Printed Gold Electrodes
Herein, screen-printed gold electrodes (SPGEs) were electrochemically activated via cyclic voltammetry in 0.5 M HCl, with the selection of HCl guided by preliminary comparisons of activation behaviour in different acidic media. Optimal surface activation was achieved after 12 cycles. Structural and…
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Artikel Jurnal
Novel Isatin-Derived Thiosemicarbazones: Synthesis, Characterization, and Assessment of Antioxidant Activity
A series of new of isatin-derived thiosemicarbazones (1–8) were synthesized using different isatin derivatives and N-(4-ethylphenyl)hydrazinecarbothioamide. The intermediated thiosemicarbazide was obtained by the reaction of 1-ethyl-4-isothiocyanatobenzene with hydrazine monohydrate. The identities…
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Artikel Jurnal
Comparison of Extraction Methods of Carthamin from Safflower Pulp
Carthamin, a red pigment obtained from safflower (Carthamus tinctorius L.) pulp, is widely used in food colorants, dyes and medicines. This study was carried out to obtain red pigments in various forms by extraction and purification from industrial waste of safflower pulp. Green solvents, organic…
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Artikel Jurnal
Tuning Magnetic Properties in Bi-2212 via Praseodymium Substitution
The present study investigates the magnetic behavior of Pr-doped Bi2Sr2CaCu2O8+δ (Bi-2212) ceramics synthesized via the sol-gel method, focusing on how Pr substitution alters their paramagnetic response. Magnetic susceptibility (M–T), inverse susceptibility (1/χ–T), derivative (dM/dT–T), and…
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Artikel Jurnal
Impact of Basalt Powder on the Physical, Fresh, Hardened and Microstructural Characteristics of Granulated Blast Furnace Slag-Based Alkali-Activated Mortars
In this study, the workability, mechanical and physical aspects of alkali-activated mortar (AAM) containing basalt powder (BP) and granulated blast furnace slag (GBFS) were investigated. For the experimental study, alkali-activated mortars (AAM) containing BP at 8%, 16%, 24%, 32% and 40%…
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Artikel Jurnal
Numerical Investigation of Thermal and Mechanical Responses in PEMFC Under Combined Loading Conditions
The mechanical and thermal responses of Proton Exchange Membrane Fuel Cells (PEMFCs) under various temperature loadings and clamping forces are essential for their operational performance and reliability. In this investigation, the thermo-mechanical performance of the PEMFC was examined under…
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Artikel Jurnal
True Material Selection in a Liquid Phase Epitaxy System for Growth of High-Tc Superconducting Films
The chemical stability of liquid-phase epitaxy (LPE) materials plays a decisive role in the quality of high-temperature Bi2Sr2Can-1CunO2n+4+δ (BSCCO) superconducting films. In this study, the corrosion and dissolution behavior of two commonly used crucibles (made of Pt, and Pt-Rh alloy) and two…
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Artikel Jurnal
Comparative Seismic Assessment of Steel Moment-Resisting Frames Using Real and Artificial Spectrum-Matched Records under Multiple Soil Conditions
This study investigates the seismic response of steel moment-resisting frames (MRFs) using linear time-history analysis (LTHA) to evaluate the influence of real and artificial spectrum-matched ground-motion records under multiple soil conditions. Three archetype buildings—3-, 9-, and 20-story—were…
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Artikel Jurnal
Enhancing the Maneuverability of a Wireless Mobile Robot with a Differential Drive System
In this paper, a wireless mobile robot with a differential drive system is designed and controlled. An effective method based on a geometrical approach is presented to achieve its maneuverability. The method classifies the robot movements if they are straight, maneuvered and 180° rotations around…
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Artikel Jurnal
Comprehensive Experimental and Thermodynamic Sustainability Assessment of a Spark-Ignition Engine Fueled with n-Butanol/Gasoline Blends
This study experimentally investigates the effects of n-butanol/gasoline blends on combustion, exhaust emissions, and sustainability indicators in a single-cylinder, air-cooled spark-ignition engine. Two fuel mixtures containing 5% and 15% n-butanol by volume (NB5 and NB15) were tested under full…
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Artikel Jurnal
Flora of the Village of Gölcük and its Surroundings (Kestel, Bursa)
In this study, the floristic characteristics of Gölcük Village and its surroundings, located within the borders of Bursa Province, one of the prominent tourism and settlement centers of Türkiye, were investigated. As a result of the research, a total of 378 taxa at the species and subspecies level…
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Artikel Jurnal
Investigation of Cysteine Production Capacities in Bacillus Species Isolated from Turkish Soil
This study aimed to investigate the cysteine production capacities of microbial strains isolated from the environment (mainly soil). In total, 262 bacterial colonies were isolated from 47 soil samples collected from 7 different locations. Isolated bacterial colonies were first grown in tryptic soy…
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Artikel Jurnal
Balancing Mechanical Strength and Hydraulic Functionality of Fine Aggregate Free Pervious Concrete Using Expanded Vermiculite
Pervious concrete is widely used for sustainable pavement applications due to its ability to reduce surface runoff and enhance groundwater recharge; however, its application is often limited by low mechanical strength caused by the absence of fine aggregates. This study focuses on identifying an…
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Artikel Jurnal
Development of Sustainable Hemp-Derived Activated Carbon Electrodes for Flexible Dye-Sensitized Solar Cells
Platinum (Pt) is generally used as the counter electrode material in dye-sensitized solar cells (DSSCs). However, due to its low chemical stability, limited natural reserves, and high cost, platinum negatively impacts the environmental durability of DSSCs and increases production costs, limiting…
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Artikel Jurnal
The Effect of Different Slab Types on Seismic Performance in Reinforced Concrete Structures: A Comparison of Beam-Slab and Ribbed Slab Systems
Due to Türkiye’s location in an active seismic zone, the safe design of load-bearing systems in reinforced concrete buildings is essential. Under seismic effects, factors such as plan aspect ratio, slab type, and soil class directly influence the structural behavior, including building stiffness…
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Artikel Jurnal
Synthesis of ZrB2 by Carbothermic Method with Reactant Material Obtained from Polymer Precursor
Zirconium diboride (ZrB2) was synthesized via a carbothermic method using a ZrO2 powder mixture, which was obtained a reactant by mixing B2O3 and a carbon source derived from a polymer precursor as well as by combining glassy B2O3 with activated carbon. The polymer precursor was calcined to obtain…
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Artikel Jurnal
Production of Polymer Matrix Fiber-Reinforced Composites and Investigation of Their Ballistic Properties
The advancements in weaponry and ammunition within the defense industry have significantly increased the demand for improved personal protection and military equipment. This trend has particularly emphasized wearable lightweight body armor for personnel and heavy armor for military vehicles…
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