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Numerical Prediction of Form Factor and Wave Interference of A Trimaran for Different Outrigger Positions

China Ocean Engineering 2022年第2期36卷 279-288页

作者： Ali DOGRUL burak yildiz Department of Naval Architecture and Marine Engineering Turkish Naval AcademyNational Defense UniversityIstanbul 34940Turkey Department of Marine Engineering Operations Yildiz Technical UniversityIstanbul 34349Turkey

Trimaran hydrodynamics have been an important research topic in recent *** have even been chosen for naval surface *** this case,investigation of a trimaran with different outrigger positions is important and necessary for better hydrodynamic *** paper focuses on the numerical investigation of trimaran *** trimaran model used in this study is a 1/80 scale high-speed displacement frigate-type concept developed by the Center for Innovation in Ship Design(CISD)at Naval Surface Warfare Center,Carderock Division(NSWCCD).The numerical simulations were conducted for different outrigger positions at low and moderate Froude numbers by using commercial CFD software solving URANS equations.A verification and validation study was carried out for the numerical method in one configuration and one ship *** existing experimental results for the trimaran resistance in the literature were used for *** different outrigger positions were analyzed and the form factor of each configuration was calculated by the Prohaska *** total resistance was decomposed to its components using the form *** interference factor was calculated for each configuration in terms of total resistance,residual resistance and wave ***,wave profiles using the longitudinal wave cuts in different locations were obtained both numerically and *** was concluded that the outrigger position had different effects on the interference,total resistance and wave profile at different Froude *** was also shown that the CFD results were in good agreement with the experimental data in all *** conclusion,this study presents the results of interference effects for different trimaran configurations in terms of wave resistance in addition to the total resistance and residual *** numerical method was validated not only with the total resistance test data but also the longitudinal wave profiles a

关键词： CFD form factor wave interference wave profile outrigger trimaran

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Effect of gamification applications on success of dentistry students

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World Journal of Methodology 2025年第1期15卷 80-87页

作者： Hatice Ahsen Deniz Elif Polat Balkan burak İncebeyaz Kıvanç Kamburoğlu Department of Dentomaxillofacial Radiology Ankara University Faculty of DentistryAnkara 06500Türkiye

BACKGROUND Gamification,the use of game materials in education,has been used in several scientific fields,and studies have demonstrated its effectiveness in student *** To evaluate whether the success of 4th-and 5th-grade dentistry students increases when using the gamification applications Kahoot!and *** An experimental design was used to measure the effect of gamification applications on students who were taught using the traditional *** this purpose,Mentimeter and Kahoot!applications were used in this experimental *** groups of 4th-and 5th-grade students were formed:Mentimeter,Kahoot!,and control *** effect of gamification applications on achievement was evaluated by administering a post-test to these groups after the instructional ***-way analysis of variance and t-tests were used for statistical *** A total of 35.5%of the students were in the Mentimeter group,29.8%in the Kahoot!group,and 34.6%in the control *** the total number of students,54.8%were female and 45.2%were male,while 52.2%were 5th-grade students and 47.8%were 4th-grade *** overall grade point average was found to be 66.65(range,24-100).There was a statistically significant difference in average success scores between students of different groups(P=0.003<0.05)and grades(P=0.036<0.05).The average success score was the highest in the Mentimeter group(71.64)and the lowest in the Kahoot!group(62.15).In the control group,this score was *** average success score was higher for students in the 5thgrade(68.16)and for female students(68.84).CONCLUSION Gamification has a great potential in the education of dentomaxillofacial radiology *** outperformed both the Kahoot!and the traditional method in terms of average student success rates.

关键词： Gamification Mentimeter Kahoot! Education Dentistry

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Four New Eclipsing Binary Systems in the TESS field:CD-3413220,HD 295082,TYC 6484–426–1 and TYC 6527–2310–1

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Research in Astronomy and Astrophysics 2021年第11期21卷 255-266页

作者： burak Ulas Department of Space Sciences and Technologies Faculty of Arts and SciencesC¸anakkale Onsekiz Mart UniversityTerzioglu CampusTR 17100C¸anakkaleTurkey Astrophysics Research Centre and Observatory C¸anakkale Onsekiz Mart UniversityTerzioglu CampusTR 17100C¸anakkaleTurkey

We present the first evidence for the binarity of four targets in the TESS *** temperatures are estimated by SED analysis and the orbital periods are *** TESS light curves of the systems are analyzed and the orbital and the absolute parameters are *** targets are also compared to wellstudied binary systems with the same morphological type and their evolutionary states are *** results indicate that the stars belong to the class of eclipsing detached binary systems.

关键词： binaries:eclipsing stars:fundamental parameters stars:individual:CD-3413220,HD 295082,TYC 6484-426-1,TYC 6527-2310-1

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Comparative study of epiphytic algal communities on Typha latifolia *** Phragmites australis(Cav.)*** Steud in the shallow Gala Lake(European Part of Turkey)

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Journal of Oceanology and Limnology 2018年第5期36卷 1615-1628页

作者： OTERLER burak Faculty of Science Department of Biology Trakya UniversityBalkan Campus22030EdirneTurkey

The aim of this study was to determine the species composition, biodiversity and, relative abundance of epiphytic algae and their relationship with environmental variables on Typha latifolia and Phragmites australis at Lake Gala(National Park). Epiphytic algae were gathered monthly by collecting aquatic plants between March 2014 and November 2014. In the epiphytic flora were a total of 133 taxa were identified, 107 taxa were identified on T. latifolia and 96 were discovered on P. australis. While the mean species richness, species diversity and evenness values of the algae identified on T. latifolia were 46, 1.85 and 0.51 respectively, these values were respectively 43, 1.51 and 0.43 on P. australis. While diatoms were generally dominant, other dominant groups in the epiphytic flora included green algae and blue-green algae. The algae that had the highest relative biovolume on T. latifolia were Spirogyra affinis, Oscillatoria sancta and Gomphonema acuminatum, while the algae that had the highest relative biovolume on P. australis were E pithemia adnata, Oscillatoria sancta and R hopalodia gibba. Results show that species composition of epiphytic algae was different, but diversity values were similar on all the macrophytes. The hydrological pulse is one of the most important factors determining the physical and chemical environment of the epiphytic algal community. It was found that some environmental factors were highly eff ective on community distribution in the epiphyton. Additionally, it was observed that some epiphytic algae species had a substrate preference between T. latifolia and P. australis.

关键词： community structure epiphytic algae shallow lake Typha latifolia Phragmites australis

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Six Newly Discovered Eclipsing Binary Systems in the TESS field

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Research in Astronomy and Astrophysics 2023年第3期23卷 143-154页

作者： burak Ulas Vildan Ayan Department of Space Sciences and Technologies Faculty of Sciences?anakkale Onsekiz Mart UniversityTerzioglu CampusTR 17100CanakkaleTurkey

We present the first detailed investigation of six eclipsing binary systems in the TESS *** TESS light curves of the targets are analyzed by determining the initial effective temperatures via SED *** absolute parameters are derived and the systems are compared to well-known binaries of the same *** show that CD-58791,CD-621257 and TYC 9356-355-1 are detached binary ***-54942 and UCAC4136-007295 are contact binaries while TYC 8508-1413-1 is a semidetached system.

关键词： TESS absolute field

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Application of g-C_(3)N_(4)/sol-gel nanocomposite on AM60B magnesium alloy and investigation of its properties

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International Journal of Minerals,Metallurgy and Materials 2023年第6期30卷 1113-1127页

作者： Roghaye Samadianfard Davod Seifzadeh burak Dikici Corrosion and Industrial Electrochemistry Research Laboratory University of Mohaghegh ArdabiliArdabil P.O.Box 179Iran Ataturk University Department of Metallurgical and Materials EngineeringErzurum 25240Turkey

To protect the AM60B magnesium alloy from corrosion,a sol-gel coating containing hydroxylated g-C_(3)N_(4)nanoplates was *** chemical composition of the hydroxylated g-C_(3)N_(4)nanoplates was investigated using X-ray photoelectron spectroscopy(XPS).The hydroxylation process did not affect the crystal size,specific surface area,pore volume,average pore diameter,and thermal stability of the g-C_(3)N_(4)*** incorporating pristine and hydroxylated g-C_(3)N_(4)nanoplates,dense sol-gel coatings were *** electron microscopy(TEM)revealed the uniform distribution of the modified g-C_(3)N_(4)in the *** average roughness of the coating was also reduced after adding the modified nanoplates due to the decreased aggregation *** impedance spectroscopy(EIS)examinations in simulated acid rain revealed a significant improvement in the anticorrosion properties of the sol-gel film after the addition of the modified g-C_(3)N_(4)due to the chemical bonding of the coating to the nanoplates.

关键词： Mg alloy corrosion protection sol-gel g-C_(3)N_(4)nanocomposite electrochemical impedance spectroscopy

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Exciton diffusion exceeding 1μm:run,exciton,run!

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Light(Science & Applications) 2021年第3期10卷 304-306页

作者： Ibrahim Dursun burak Guzelturk Department of Electrical Engineering The Pennsylvania State UniversityUniversity ParkPA 16802USA X-ray Science Division Advanced Photon SourceArgonne NationalLaboratoryLemontILUSA

Exciton diffusion lengths reaching the micrometer length scale have long been desired in solution-processed semiconductors but have remained unattainable using conventional materials to *** halide perovskite nanocrystal films show unprecedented exciton migration with diffusion lengths approaching 1μm owing to the efficient combination of radiative and nonradiative energy transfer.

关键词： diffusion exceeding approaching

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Functional Charge Transfer Plasmon Metadevices

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Research 2020年第1期2020卷 1829-1846页

作者： burak Gerislioglu Arash Ahmadivand Department of Physics&Astronomy Rice University6100 Main StHoustonTexas 77005USA Department of Electrical&Computer Engineering Rice University6100 Main StHoustonTexas 77005USA

Reducing the capacitive opening between subwavelength metallic objects down to atomic scales or bridging the gap by a conductive path reveals new plasmonic spectral features,known as charge transfer plasmon(CTP).We review the origin,properties,and trending applications of this modes and show how they can be well-understood by classical electrodynamics and quantum mechanics *** important is the excitation mechanisms and practical approaches of such a unique resonance in tailoring high-response and efficient extreme-subwavelength hybrid nanophotonic *** the quantum tunnelinginduced CTP mode possesses the ability to turn on and off the charge transition by varying the intensity of an external light source,the excited CTP in conductively bridged plasmonic systems suffers from the lack of *** address this,the integration of bulk plasmonic nanostructures with optothermally and optoelectronically controllable components has been introduced as promising techniques for developing multifunctional and high-performance CTP-resonant *** tunable plasmonic devices such as metamodulators and metafilters are thus in prospect.

关键词： CTP conductive extreme

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Deep neural network ensembles for remote sensing land cover and land use classification

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International Journal of Digital Earth 2021年第12期14卷 1868-1881页

作者： burak Ekim Elif Sertel Institute of Informatics Satellite Communication and Remote Sensing ProgramIstanbul Technical UniversityIstanbulTurkey Department of Geomatics Engineering Istanbul Technical UniversityIstanbulTurkey

With the advancement of satellite technology,a considerable amount of very high-resolution imagery has become available to be used for the Land Cover and Land Use(LCLU)classification task aiming to categorize remotely sensed images based on their semantic ***,Deep Neural Networks(DNNs)have been widely used for different applications in the field of remote sensing and they have profound impacts;however,improvement of the generalizability and robustness of the DNNs needs to be progressed further to achieve higher accuracy for a variety of sensing geometries and *** address this problem by deploying three different Deep Neural Network Ensemble(DNNE)methods and creating a comparative analysis for the LCLU classification *** enables improvement of the performance of DNNs by ensuring the diversity of the models that are ***,enhances the generalizability of the models and produces more robust and generalizable outcomes for LCLU classification *** experimental results on NWPU-RESISC45 and AID datasets demonstrate that utilizing the aggregated information from multiple DNNs leads to an increase in classification performance,achieves state-of-the-art,and promotes researchers to make use of DNNE.

关键词： Classification convolutional neural networks(CNN) deep neural network ensembles(DNNE) land cover and land use(LCLU) remote sensing

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Translational perspective: is cinnamon a suitable agent for cognitive impairment and Alzheimer’s disease associated with brain trauma?

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Neural Regeneration Research 2019年第8期14卷 1372-1373页

作者： burak Yulug Seyda Cankaya Department of Neurology Faculty of Medicine Alanya Alaaddin Keykubat University

Cinnamon, is an exotic spice and a major constituent of our food which is commonly used in different areas of the world for the treatment of various diseases (Kawatra et al., 2015). Besides 让s anti-inflammatory, anti-diabetic and anti-cancer properties, cinnamon also exerts strong brain protective and pro-cogrdtive effects in various models of neurodegeneration (Kawatra et al., 2015;Kelestemur et al., 2016)(Figure 1).

关键词： Translational perspective suitable agent brain trauma

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