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Articles 361 - 390 of 10730
Full-Text Articles in Physical Sciences and Mathematics
An Overview Of Sodium-Ion Batteries As Next-Generation Sustainable Electrochemicaldevices Beyond The Traditional Lithium-Ion Framework, Gamzenur Özsi̇n
An Overview Of Sodium-Ion Batteries As Next-Generation Sustainable Electrochemicaldevices Beyond The Traditional Lithium-Ion Framework, Gamzenur Özsi̇n
Turkish Journal of Chemistry
The rise in the popularity of electric vehicles and portable devices has boosted the demand for rechargeable batteries, withlithium-ion (Li-ion) batteries favored for their superior energy and power density. However, supply strains and sustainability issues aredriving the search for alternatives. Postlithium technologies, particularly sodium-ion (Na-ion) batteries, are gaining attention for theirpromising potential and similarity to Li-ion technology. While efforts are still needed to enhance the energy and power density as wellas the cycle life of Na-ion batteries to replace Li-ion batteries, these energy storage devices present significant advantages in terms ofsustainability, theoretical capacity, and intrinsic safety features. Through this paper, …
A Hindered Phenol Containing Pvc/Cuo Nanocomposites; Study On The Mechanical And Thermooxidative Properties, Mohsen Hajibeygi, Alireza Ghasemi
A Hindered Phenol Containing Pvc/Cuo Nanocomposites; Study On The Mechanical And Thermooxidative Properties, Mohsen Hajibeygi, Alireza Ghasemi
Turkish Journal of Chemistry
The effect of synthesized 5-((4-hydroxy-3,5-di-tert-butylphenyl)diazenyl)isophthalic acid (HBA) containing a hinderedphenol derivative on the thermooxidation, hydrochloric acid release time, and mechanical strength of PVC/CuO nanocompositeswas studied. Moreover, 5-((4-hydroxy-2,5-dimethylphenyl)diazenyl)isophthalic acid (HMA) was synthesized for comparison ofcorresponding PVC nanocomposite properties. PVC nanocomposite thin films were prepared through in situ surface modificationof CuO nanoparticles with HBA and HMA, individually, in the PVC solution. The XRD and FE-SEM results clarified the desirabledispersion of CuO nanoparticles. The PVC sample with loading of 5 wt% from each HBA and CuO was found to be the most thermallystable, which was confirmed by thermogravimetric analysis in inert conditions. The …
Platinum Group Metal (Pgm) Free Multi Metallic Nanomaterial: A Potential Electrocatalyst For Ethanol Oxidation, Susmita Singh, Prodipta Pal, Soumik Roy, Shalini Basak, Prantica Saha, Anushna Dutta, Sinthia Saha, Mainak Bose
Platinum Group Metal (Pgm) Free Multi Metallic Nanomaterial: A Potential Electrocatalyst For Ethanol Oxidation, Susmita Singh, Prodipta Pal, Soumik Roy, Shalini Basak, Prantica Saha, Anushna Dutta, Sinthia Saha, Mainak Bose
Turkish Journal of Chemistry
Comprehensive studies of the ethanol oxidation reaction (EOR) have shown high interest in fuel cell technologies. As anodecatalysts, introducing platinum group metal (PGM) free catalyst is promising for higher catalytic activity towards the EOR, as these arecost-effective, pollution-tolerant, and suitable for sustainable energy conversion. In this investigation, multi walled carbon nanotube(MWCNT) supported PGM-free electrocatalysts are synthesized by the impregnation reduction method. The atomic structure,composition, and morphology of nanoalloy catalysts are discovered through X-ray diffraction (XRD), Raman spectroscopy and fourier-transform infrared (FTIR) spectroscopy techniques. Electrochemical behaviours have been analysed by cyclic voltammetry (CV), linearsweep voltammetry (LSV), Chronoamperometry (CA), and electrochemical impedance …
Nonadhesive Membranes: Preparation And Characterization Of Modified Phbhx Membranes, Funda Alkan, Murat Demi̇rbi̇lek, Oktay Aydin, Berrak Gümüşkaya Öcal, Neli̇sa Laçi̇n Türkoğlu, Mustafa Türk, Mehmet Ali̇ Onur
Nonadhesive Membranes: Preparation And Characterization Of Modified Phbhx Membranes, Funda Alkan, Murat Demi̇rbi̇lek, Oktay Aydin, Berrak Gümüşkaya Öcal, Neli̇sa Laçi̇n Türkoğlu, Mustafa Türk, Mehmet Ali̇ Onur
Turkish Journal of Chemistry
After abdominal surgery, there is a possibility of adhesions between the abdominal organs and the abdominal wall. Theadhesions can lead to problems such as chronic pain, intestinal blockage, and infertility. To prevent adhesion, antiadhesion patchescan be used. In this study, poly hydroxybutyrate-co-hexanoate membranes were fabricated as antiadhesion patches and modified witheither fatty acids or polyethylene glycol. The homogeneity and protein absorption of the membranes were assessed. The effects onblood coagulation factors were determined and the adhesion-proliferation properties of human fibroblast cells on the membranes weredetermined. The results show that myristic acid slightly increases surface free energy (40.7 ± 4.2 mN/m), …
Preparation And Characterization Of Rhfe/G-C3n4 Nanoparticles For Efficient Hydrolysis Of Sodium Borohydride, Merve Uçar Kaya, Mehmet Yurderi̇, Mehmet Zahmakiran
Preparation And Characterization Of Rhfe/G-C3n4 Nanoparticles For Efficient Hydrolysis Of Sodium Borohydride, Merve Uçar Kaya, Mehmet Yurderi̇, Mehmet Zahmakiran
Turkish Journal of Chemistry
Highly effective graphitic carbon nitride-supported RhFe Nanoparticles (denoted as RhFe/g-C3N4) were prepared using a simple wet impregnation-reduction method for the hydrolysis of sodium borohydride (NaBH4). The obtained RhFe/g-C3N4 catalyst was characterized using advanced analytical/spectroscopic techniques such as inductively coupled plasma-optical emission spectroscopy (ICP-OES), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Powder X-ray diffraction (P-XRD), X-ray spectroscopy (XPS), and fourier transform infrared spectroscopy (FT-IR). The catalytic activities of RhFe/g-C3N4 catalysts with varying Rh/Fe molar ratios were investigated, demonstrating superior catalytic activity compared to monometallic Rh and Fe. The initial turnover frequency (TOF) value of the Rh0.48Fe0.52/g-C3N4 catalyst was calculated as …
The Magnetic Beads-Based Sandwich-Shaped Immune Complexes For Rapid And Sensitiveamperometric Detection Of Sox2 Protein, Göksu Özçeli̇kay Akyildiz, Mehmet Altay Ünal, Seçi̇l Gülden, Si̇bel Ayşil Özkan
The Magnetic Beads-Based Sandwich-Shaped Immune Complexes For Rapid And Sensitiveamperometric Detection Of Sox2 Protein, Göksu Özçeli̇kay Akyildiz, Mehmet Altay Ünal, Seçi̇l Gülden, Si̇bel Ayşil Özkan
Turkish Journal of Chemistry
Sex-Determining Region Y-box 2 (SOX2) is a transcription factor protein. SOX2 expression is related to lymph nodemetastasis and distant metastasis in colorectal carcinomas. SOX2 was determined with the first magnetic disposable immunoplatform.The designed sandwich-shaped immune complexes were formed by a capture antibody, SOX2 protein, and biotinylated secondaryantibodies (dAb/HRP). The sandwich-shaped immune complex was linked to carboxylic acid functionalized magnetic beads (HOOC-MBs). This magnetic bioconjugate was dropped on the surface of the screen-printed carbon electrode (SPCE). The amperometricmeasurement was performed at –0.20 V in the presence of hydroquinone (HQ) and H2O2 against a silver pseudo-reference electrode.The optimization parameters affecting the immunoassay …
Masking Of Iron And Other Interferences During The Spectrophotometric Analysis Of Aluminum From Soil Samples Using Alizarin Red S, Hafiz Zain Ul Aabidin, Muhammad Inam Ul Hassan, Tariq Yasin, Muhammad Zubair Rahim, Ahsan Amin Bhatti, Hamayun Imtiaz, Asif Raza
Masking Of Iron And Other Interferences During The Spectrophotometric Analysis Of Aluminum From Soil Samples Using Alizarin Red S, Hafiz Zain Ul Aabidin, Muhammad Inam Ul Hassan, Tariq Yasin, Muhammad Zubair Rahim, Ahsan Amin Bhatti, Hamayun Imtiaz, Asif Raza
Turkish Journal of Chemistry
In whole-rock geochemical analysis, the quantification of aluminum in geological samples is performed using differentanalytical techniques including UV-Vis spectrophotometry. During the spectrophotometric analysis of aluminum utilizing AlizarinRed S, iron causes significant interference, leading to inaccurate measurements of the amount of aluminum in the sample. In caseswhere leached or processed samples contain titanium, interference is also observed. However, appropriate masking agents can removethese interferences. In this study, various masking agents including Tiron, oxalic acid, ascorbic acid, and thioglycolic acid were utilizedfor the masking of iron. Among these masking agents, ascorbic acid proved to be the best candidate for masking iron. A …
Simultaneous Determination Of Sunset Yellow And Tartrazine In Real Samples On An N-Butylamine-Graphite/Polyaminophenol Composite Electrode, Mürşi̇de Ceren Afşar, Zekerya Dursun
Simultaneous Determination Of Sunset Yellow And Tartrazine In Real Samples On An N-Butylamine-Graphite/Polyaminophenol Composite Electrode, Mürşi̇de Ceren Afşar, Zekerya Dursun
Turkish Journal of Chemistry
A composite electrode was fabricated for simultaneous determination of sunset yellow (SY) and tartrazine (Tz) in foods andsyrup. It is based on n-butylamine intercalation into graphite and then dropped on a poly (4-aminophenol)/glassy carbon electrode(GCE). The electrode surface morphologies, chemistry, and electrical properties were identified by scanning electron microscopy(SEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy (RS), and electrochemical impedance spectroscopy (EIS). Thenew composite electrode significantly increased the electrochemical response of SY and Tz relative to a bare GCE. The peak currentof SY and Tz increased linearly depending on their concentrations from 0.006 μmol L–1 to 1.0 μmol L–1 (r = …
A New Water-Soluble Silicon Phthalocyanine That Catalyzes The Photodegradation Of Pollutant Dyes, Damla Nur Kaya, Behi̇ce Sebnem Sesalan
A New Water-Soluble Silicon Phthalocyanine That Catalyzes The Photodegradation Of Pollutant Dyes, Damla Nur Kaya, Behi̇ce Sebnem Sesalan
Turkish Journal of Chemistry
The removal of color arising from water-soluble dyes in wastewaters is necessary to counter the threat to health. Because of thedifficulty in elimination of these dyes by conventional methods, their photodegradation using photosensitizers such as phthalocyanines(Pcs) has been employed recently. When compared to peripherally substituted derivatives, silicon Pcs are reported to be morebiocompatible with low toxicity. Thus a new silicon Pc substituted with two quaternized dimethylamino phenoxy units (compound 1)and its quaternized derivative (compound 2) were synthesized to test its photocatalytic ability employing the dyes methylene blue (MB),eosin B (EB), erythrosine (ERB), sulforhodamine B (SRB), and brilliant blue FCF (BRB), …
Landslides Triggered By The 6 February 2023 Kahramanmaraş Earthquakes (Türkiye), Sultan Kocaman, Si̇nem Çeti̇nkaya, Nazli Tunar Özcan, Gi̇zem Karakaş, Veysel Emre Karakaş, Candan Gökçeoğlu
Landslides Triggered By The 6 February 2023 Kahramanmaraş Earthquakes (Türkiye), Sultan Kocaman, Si̇nem Çeti̇nkaya, Nazli Tunar Özcan, Gi̇zem Karakaş, Veysel Emre Karakaş, Candan Gökçeoğlu
Turkish Journal of Earth Sciences
On February 6th, 2023, a sequence of devastating earthquakes hit the south and southeastern part of Türkiye. Numerous secondary hazards were triggered in the region, including thousands of landslides. This study investigated the landslides triggered by the 6 February 2023 Kahramanmaras Earthquakes. On the February 7th, the General Directorate of Mapping, Türkiye initiated several aerial photogrammetric flights and continued for several days. Although the adverse meteorological conditions affected the image quality, valuable data with a nominal resolution of 25 cm could be produced over an area of 108,627 km2. By comparing post-earthquake aerial orthophotos with pre-earthquake imagery stored in archives, …
Imaging Fault Geometries In The Upper Crust Using High-Resolution Earthquakehypocenters In The Germencik Geothermal Field, Western Türkiye, Onur Tan
Turkish Journal of Earth Sciences
The Germencik geothermal field with 240 °C fluid temperature is one of the most important energy production areas located at the westernmost end of the Büyük Menderes Graben (western Türkiye). The northern boundary faults of the graben have a dip angle larger than 50° and have listric characteristics. In this brief study, the earthquake activity between 2007 - 2024 in the Germencik geothermal field is improved with the double-difference inversion method to image the deep normal fault planes down to 20 km of the crust. Considering the steeply southward dipping boundary faults in the graben, probable listric normal faults in …
Geological Characterization Of The Breccia Corallina (Marmor Sagarium) Quarries In Northwest Asia Minor, Murat Yilmaz, Hakan Elçi̇, Serdar Akgündüz, Ati̇ye Tuğrul, Göksel Dursun
Geological Characterization Of The Breccia Corallina (Marmor Sagarium) Quarries In Northwest Asia Minor, Murat Yilmaz, Hakan Elçi̇, Serdar Akgündüz, Ati̇ye Tuğrul, Göksel Dursun
Turkish Journal of Earth Sciences
The province of Bilecik is one of the leading block stone production regions in Northwest Asia Minor, where natural stone quarrying has been carried out since ancient times. Natural stones with different patterns have been produced in the block stone quarries in this region. The natural stones produced from this region were used in Italy and Istanbul during the Roman period and in the construction of many historical buildings in Istanbul during the Ottoman period. The best known of these natural stones is Breccia Corallina (Marmor Sagarium), a brecciated limestone with ivory-colored clasts and coral red cement. In this study, …
Mineralogy And Geochemistry Of Copper Slags From The Roman Imperial Period:Implications For The Type And Technology Of Smelting Furnaces Indereköy Ancient Copper Mine (Thrace Region, Türkiye), Yi̇ği̇t Kurt
Turkish Journal of Earth Sciences
The Strandja Mountains in the northwestern part of Turkey host porphyry and skarn type mineralizations and ancient slag heaps, which are the residues of ancient metallurgical processes. Ancient smelting furnaces were established near the skarn type mineralization zones and the ores were processed. Charcoal were used as fuel in these furnaces. Tenorite mineral was detected in the mineralogical analyses of the slags by XRD and it was determined that the furnaces were heated above 1000 °C. When the distribution of SiO2 in the slags was examined according to different end members, it was determined that the melting temperatures were in …
Geochronological And Isotopic Data From The Adakitic Dodurga Pluton (Central Pontides, N Türkiye): New Insights For The Geodynamic Evolution Of The Northern Neotethys, Okay Çi̇men, Mehmet Ali̇ Gücer, Antonio Simonetti, Fati̇h Karaoğlan
Geochronological And Isotopic Data From The Adakitic Dodurga Pluton (Central Pontides, N Türkiye): New Insights For The Geodynamic Evolution Of The Northern Neotethys, Okay Çi̇men, Mehmet Ali̇ Gücer, Antonio Simonetti, Fati̇h Karaoğlan
Turkish Journal of Earth Sciences
The Dodurga Pluton is located within the Central Pontides (northern Türkiye) and, has a SW-NE elongation, and consists of granodiorite and dacite porphyry. Previous studies have suggested that this pluton is Triassic in age, and its whole-rock geochemical systematics are consistent with those from adakitic magmatic occurrences rather than the classic arc granitoid suite. This study reports the first time in-situ/whole-rock radiogenic isotopic (Sr, Nd and Pb) and mica/amphibole Ar-Ar age data to evaluate better its petrogenetic-geodynamic evolution and chemical nature of mantle source(s). Unlike previous data, combined new in-situ zircon U-Pb yield Late Cretaceous crystallization ages of 84.2±0.9 Ma …
Kinematics And Age Of The Afyon Zone In The Akhisar Region, Western Türkiye, Tali̇p Güngör, İsmai̇l İşi̇ntek, Erhan Akay, Cüneyt Akal, Altuğ Hasözbek, Ahmed Erbi̇l, Axel Gerdes
Kinematics And Age Of The Afyon Zone In The Akhisar Region, Western Türkiye, Tali̇p Güngör, İsmai̇l İşi̇ntek, Erhan Akay, Cüneyt Akal, Altuğ Hasözbek, Ahmed Erbi̇l, Axel Gerdes
Turkish Journal of Earth Sciences
In western Anatolia, to the south of the İzmir-Ankara Suture, Menderes Massif, Cycladic Blueschists, Afyon Zone and Bornova Mélange form the main tectonic belts from structurally bottom to top. In the Akhisar region, the Akhisar Nappe consists of Hasköy Formation, below, and Görenez Limestone, above. The Hasköy Formation is composed of a metaclastic sequence with metarhyolite intercalations (237.4 ± 1.1 Ma, zircon LA-ICP-MS) and recrystallized limestone lenses, and it gradually passes upward into late Norian-Early Jurassic Görenez Limestone. New radiogenic data from metarhyolites of the Hasköy Formation and fossil determinations from recrystallized limestones of the Görenez Limestone show that the …
Characterization And Provenance Analysis Of The Architectural Building Stones At Thestratonikeia Theater In Yatağan, Muğla, Southwest Türkiye, With Determination Of Itsconstruction History Through Osl, Tamer Koralay, Eren Şahi̇ner, Bi̇lal Söğüt, Tunç Sezgi̇n, Yusuf Kağan Kadioğlu
Characterization And Provenance Analysis Of The Architectural Building Stones At Thestratonikeia Theater In Yatağan, Muğla, Southwest Türkiye, With Determination Of Itsconstruction History Through Osl, Tamer Koralay, Eren Şahi̇ner, Bi̇lal Söğüt, Tunç Sezgi̇n, Yusuf Kağan Kadioğlu
Turkish Journal of Earth Sciences
Stratonikeia, a city in the interior of the Caria region, is located at Eskihisar settlement within the borders of Yatağan town of Muğla city. The ancient city’s foundation dates back to 5000 BC, making it one of the oldest settlements in southwest Turkey. It is strategically located between the Inner Aegean and Eastern Mediterranean regions. Due to its location, the city has always been important during its history. The Greek type of theater, which is the main topic of this paper, is one of the most remarkable structures known to date from the Hellenistic period and is made of marble …
The Role Of Α-Inequalities In Examining The Singular Version Of The Big Bang Model, Samane Ijadi, S. Mansour Vaezpour, Mehdi Shabibi, Shahram Rezapour
The Role Of Α-Inequalities In Examining The Singular Version Of The Big Bang Model, Samane Ijadi, S. Mansour Vaezpour, Mehdi Shabibi, Shahram Rezapour
Turkish Journal of Mathematics
In this article, by extending Friedmann's equation, we propose a singular fractional differential system for the Big Bang model. In this model, the rate of increase in the size of the universe tends to infinity at time near to zero and causes the emergence of a singular differential equation,which physically justifies the near-infinity energy of the universe in the near-zero volume of the universe in the early moments of the Big Bang. Then, we investigate this type of strong singular boundary value problem, by using $\alpha$-inequalities. In the sequel, some examples, describe the main results. Moreover, we present numerical and …
Asymptotic Behavior Of The Kirchhoff Index For Square Lattice With Boundary Conditions, Fati̇h Ecevi̇t, Arzu Boysal
Asymptotic Behavior Of The Kirchhoff Index For Square Lattice With Boundary Conditions, Fati̇h Ecevi̇t, Arzu Boysal
Turkish Journal of Mathematics
We determine leading asymptotic behavior of the Kirchhoff index for the square lattice under free, cylindrical and toroidal boundary conditions. Our results provide correct forms of the eleven false theorems/results published in the following papers: L. Ye, On the Kirchhoff index of some toroidal lattices, Linear Multilinear Algebra, 59:6 (2011), 645--650; J.-B. Liu, X.-F. Pan, J. Cao, X. Huang, The Kirchhoff index of toroidal meshes and variant networks, Math. Probl. Eng., Article ID 286876, 8 pages (2014); J.-B. Liu, X.-F. Pan, A unified approach to the asymptotic topological indices of various lattices, Appl. Math. Comput., 270 (2015), 62--73.
Properties Of Frontier, Exterior And Border In Picture Topological Spaces, Shanmugasundharam Durga, Lakshmanadas Vidyarani, Mandarasalam Vigneshwaran, Tomasz Witczak
Properties Of Frontier, Exterior And Border In Picture Topological Spaces, Shanmugasundharam Durga, Lakshmanadas Vidyarani, Mandarasalam Vigneshwaran, Tomasz Witczak
Turkish Journal of Mathematics
The paper is dedicated to picture sets. They are crisp version of Cuong's picture fuzzy sets (just like intuitionistic sets introduced by Coker are crisp version of intuitionistic fuzzy sets). We have already defined several basic topological notions in this framework and we have analyzed its algebra. Now we continue our research. We introduce the notions of border, frontier and exterior. Many properties are studied. Moreover, we point out that there are some important differences between classical and non-classical approach.
Inverse Ordered Semigroups, Michael Tsingelis
Inverse Ordered Semigroups, Michael Tsingelis
Turkish Journal of Mathematics
Ένα στοιχείο x μιας διατεταγμένης ημιομάδας [[EQUATION]] ονομάζεται αντίστροφο στοιχείο του [[EQUATION]]if [[EQUATION]]και [[EQUATION]]. Μια αντίστροφη διατεταγμένη ημιομάδα είναι μια διατεταγμένη ημιομάδα S για την οποία κάθε στοιχείο του S έχει ένα αντίστροφο στοιχείο και τα αντίστροφα στοιχεία οποιουδήποτε στοιχείου του S βρίσκονται στην ίδια συνδεδεμένη συνιστώσα του διαγράμματος Hasse της σχέσης τάξης του. Παρουσιάζουμε ιδιότητες που ικανοποιούνται από αντίστροφα διατεταγμένες ημιομάδες και χαρακτηρίζουμε αντίστροφα διατεταγμένες ημιομάδες με βάση την έννοια της κανονικότητας των διατεταγμένων ημιομάδων, το σύνολο των αδυναμιών τους και τις σχέσεις του Green. Επίσης αποδεικνύουμε ότι η αντιστρεψιμότητα των διατεταγμένων ημιομάδων διατηρείται από ομομορφισμούς.
On Minimal Hypersurfaces In Euclidean Spaces And Riemannian Manifolds, Josef Mikeš, Sergey Stepanov, Irina Tsyganok
On Minimal Hypersurfaces In Euclidean Spaces And Riemannian Manifolds, Josef Mikeš, Sergey Stepanov, Irina Tsyganok
Turkish Journal of Mathematics
In this paper, we present the conditions under which minimal and stable minimal hypersurfaces are as hyperplanes in Euclidean spaces ands a totally geodesic submanifolds in Riemannian manifolds.
A Novel Mu-Metal Based Weak Magnetic Energy Harvester For Self-Powered Monitoring Of Power Grid Assets, Arsalan Habib Khawaja, Hassan Pervaiz, Dongsheng Cai, Jian Li, Qi Huang
A Novel Mu-Metal Based Weak Magnetic Energy Harvester For Self-Powered Monitoring Of Power Grid Assets, Arsalan Habib Khawaja, Hassan Pervaiz, Dongsheng Cai, Jian Li, Qi Huang
Turkish Journal of Electrical Engineering and Computer Sciences
This paper presents a novel magnetic field driven contactless energy harvester with improved flux concentration capabilities for potential utilization in Power system monitoring where stray magnetic field is abundant and readily available. The designed harvester employs multilayered Mu-Metal based cone shaped core to maximize magnetic flux density. To achieve the final design, this work investigates magnetic flux concentration ability of various geometries and material properties in magnetic flux conditions typical to overhead 11 kV power distribution circuits. Impact of layers in core-coil region of harvesting coil on magnetic flux concentration is evaluated by means of Finite Element analysis. Resultantly, the …
Advanced Prediction Of Events And Temporal Expressions In Medical Text Using The Jena Api: Integrating Ontologies And Deep Learning, Hafida Tiaiba, Lyazid Sabri, Okba Kazar
Advanced Prediction Of Events And Temporal Expressions In Medical Text Using The Jena Api: Integrating Ontologies And Deep Learning, Hafida Tiaiba, Lyazid Sabri, Okba Kazar
Turkish Journal of Electrical Engineering and Computer Sciences
The automatic recognition of medical concepts and temporal expressions in narrative clinical text enhances the utility of electronic health records (EHRs) and supports clinical decision-making and research. However, challenges arise due to the complexity of medical language, ambiguity of terms, and variability in expression. To address these issues, the use of medical ontologies significantly improves data management in healthcare. A novel approach integrates various medical ontologies covering drugs, symptoms, diseases, anatomy, disease drivers, and food, and with convolutional neural networks (CNNs) -including Standard, Transposed, and Separable convolution models (CONSEPTR)- to extract both medical events (e.g., clinical departments, treatments, problems) and …
Machine Learning Models Approach For The Quantitative Classification Of Ferricyanide Compound Using Electrochemical Detection With Cpe-Fe3o4nps, Süleyman Aşir, Nemah Abu Shama, Najya Maroof Saleem, Devri̇m Kayali, Kami̇l Di̇mi̇li̇ler
Machine Learning Models Approach For The Quantitative Classification Of Ferricyanide Compound Using Electrochemical Detection With Cpe-Fe3o4nps, Süleyman Aşir, Nemah Abu Shama, Najya Maroof Saleem, Devri̇m Kayali, Kami̇l Di̇mi̇li̇ler
Turkish Journal of Electrical Engineering and Computer Sciences
Most common electrochemical analysis techniques used to evaluate enzymes, proteins, and heavy metals over a wide potential range include electrochemical impedance EIS, differential pulse voltammetry DPV, and square wave voltammetry SQWV. Machine leaning algorithms MLA are employed to classify the Potassium ferricyaniyde K3Fe(CN)6 concentrations using a modified carbon paste electrode CPE embedded with iron (II, III) oxide (Fe3O4) NPs. The CV, DPV, and SQWV voltametric data collected from all K3Fe(CN)6 concentrations were used as input data to the machine learning algorithms. Signaling current of K3Fe(CN)6 concentrations improved at Fe3O4 modified with nanoparticles NPs CPE in a comparison with the unmodified …
Balancing Anarchy And Efficiency: Partial Team Formations And Learning In Potential Games, Muhammed Sayin
Balancing Anarchy And Efficiency: Partial Team Formations And Learning In Potential Games, Muhammed Sayin
Turkish Journal of Electrical Engineering and Computer Sciences
Non-cooperative multi-agent learning, focusing on individual rationality (anarchy), often falls short in achieving system-wide efficiency in potential games, a class of games with applications in decentralized control and optimization. On the other hand, cooperative approaches prioritize system efficiency but often via global coordination, which could be impractical, e.g., for large-scale and less controlled environments. To address this dilemma, we propose a novel framework that introduces partial team formations, allowing team members with shared objectives to coordinate their actions while maintaining team-wise rationality for improved system-wide efficiency without the burden of global coordination. We model such interactions as a multi-team game …
Local Dynamic Analysis Of The Covid-19 Mathematical Model Based On Discrete-Time Predator-Prey Population Model, Fi̇gen Kangalgi̇l, Ni̇lüfer Topsakal, Özge Kuzucu
Local Dynamic Analysis Of The Covid-19 Mathematical Model Based On Discrete-Time Predator-Prey Population Model, Fi̇gen Kangalgi̇l, Ni̇lüfer Topsakal, Özge Kuzucu
Turkish Journal of Mathematics
In this article, the local dynamics of a discrete-time Covid-19 pandemic model based on the Lotka Volterra model with topological classifications, bifurcation analysis and chaos control are investigated. It is shown that under some parametric conditions, the discrete-time Covid-19 pandemic model has two equilibrium points. With linear stability theory, local dynamics are investigated with topological classifications about the equilibrium points of the discrete-time Covid-19 epidemic model. In addition, the existence of a Neimark-Sacker bifurcation at the internal equilibrium point is proved and this bifurcation is analysed using explicit criteria. Furthermore, the chaos in the discrete Covid-19 pandemic model is also …
Generalization Of Dual Numbers And Dual Euclidean 3-Space, Şükran Duygu Soylu, Harun Bariş Çolakoğlu, Mustafa Özdemi̇r
Generalization Of Dual Numbers And Dual Euclidean 3-Space, Şükran Duygu Soylu, Harun Bariş Çolakoğlu, Mustafa Özdemi̇r
Turkish Journal of Mathematics
In this study, we consider the generalized dual numbers and determine their algebraic and geometric properties. Then we generalize the well-known D3 module and introduce the generalized dual Euclidean 3-space with its scalar product and norm. After determining the conditions for being a unit generalized dual Euclidean vector, we derive the generalized Euclidean Study map, which states that there is a bijective correspondence between directed lines of the space and the elements of the unit generalized dual Euclidean sphere. Finally, we define the dual Euclidean angle between two generalized dual Euclidean vectors.
A Content-Based Recommender System For The Uav Caching In The Field Of Entertainment In Fog Computing, Elham Darbanian, Mohsen Nickray
A Content-Based Recommender System For The Uav Caching In The Field Of Entertainment In Fog Computing, Elham Darbanian, Mohsen Nickray
Turkish Journal of Electrical Engineering and Computer Sciences
The Unmanned Aerial Vehicle (UAV) can be used as good flying base stations to cache popular content and follow a user mobility pattern, to help them in a suitable services. Conventional edge caching algorithms often prioritize cache contents with higher popularity. Nevertheless, the cache capacity of mobile devices is restricted, and diverse clients may have expansive varieties in content inclination designs. In this manner, the performance and effectiveness of the cache will be so constrained without great strategies. The composition of recommender system and edge caching is considered as a new research topic, which is used to reduce cost and …
Estimates Of The Numerical Radius Utilizing Various Function Properties, Vuk Stojiljkovic, Mehmet Gürdal
Estimates Of The Numerical Radius Utilizing Various Function Properties, Vuk Stojiljkovic, Mehmet Gürdal
Turkish Journal of Mathematics
Numerous inequalities of the vector and numerical radius types have been found. We achieved several extensions of the well-known numerical radius type inequalities by using the function [[EQUATION]] described in the publication by Stojiljkovi\'{c} and Dragomir in [30] and convexity characteristics with standard operator theory approaches. In particular, the following integral type numerical radius inequality has been obtained, that is [[EQUATION]]
Nearly Toric Varieties Of Type A, Mahi̇r Bi̇len Can, Nestor Fernando Diaz Morera
Nearly Toric Varieties Of Type A, Mahi̇r Bi̇len Can, Nestor Fernando Diaz Morera
Turkish Journal of Mathematics
A notion of a nearly toric variety is introduced. The examples of nearly toric varieties in the context of Schubert varieties are discussed. In particular, combinatorial characterizations of the smooth and singular nearly toric Schubert varieties are found. Furthermore, the counts and generating series are determined. Additionally, a connection between Dyck paths and a certain family of nearly toric Schubert varieties is established.