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Exact Solutions to (3+1) Conformable Time Fractional Jimbo–Miwa,Zakharov–Kuznetsov and Modified Zakharov–Kuznetsov Equations

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Communications in Theoretical Physics 2017年第5期67卷 479-482页

作者： alper Korkmaz Department of Mathematics Cankiri Karatekin UniversityCankiriTurkey

Exact solutions to conformable time fractional (3+1)-dimensional equations are derived by using the modified form of the Kudryashov method. The compatible wave transformation reduces the equations to an ODE with integer orders. The predicted solution of the finite series of a rational exponential function is substituted into this *** resultant polynomial equation is solved by using algebraic operations. The method works for the Jimbo–Miwa, the Zakharov–Kuznetsov, and the modified Zakharov–Kuznetsov equations in conformable time fractional forms. All the solutions are expressed in explicit forms.

关键词： fractional (3+1)-dimensional Jimbo–Miwa equation fractional modified Zakharov–Kuznetsov equation modified Kudryashov method fractional Zakharov–Kuznetsov equation exact solutions

Physical,Anatomical,and Photochemical Analyses of Some ExoticWood Species Submitted to Heat Treatment

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Journal of Renewable Materials 2021年第8期9卷 1485-1501页

作者： alper Aytekin Hikmet Yazıcı Bartın University Department of Management Information SystemsBartın74100Turkey Zonguldak Bulent Ecevit University Çaycuma Vocational SchoolZonguldak67100Turkey

The objective of this study was to evaluate the effect of heat treatment on decorative properties including glossiness,color coordinates including lightness(L),blue-yellow(b^(*))and red-green(a^(*)),hardness(shore-D)morphological characterization and thermal properties of some exotic wood *** treatment of anigre(Aningeria altissima),cedrorana(Cedrelinga catenaeformis),cemara(Casuarina sumatrana)and coronilla(Scutia buxifolia)wood materials were performed in an oven with a programmable controller at 210°C for 3 *** obtained samples were conditioned in a climate cabin and the decorative properties,morphological characterization with scanning electron microscopy(SEM)and thermal properties with thermogravimetric analyzer(TGA)of the obtained samples were *** test results showed that color got darker with heat treatment,specifically L and b^(*)decreased,and a^(*)increased for anigre and cedrorana but a^(*)decreased for cemara and *** glossiness for all samples generally increased from 20°to 85°but heat treatment decreased the *** density generally decreased with heat treatment and decrease ratio in the density was found to be in range from 5.6%to 10.6%.According to the SEM analysis,some cracks,pit aspiration and layer decomposition in the micro level of the wood structure were *** showed that heat treatment makes thermally more stable *** a result,it can be said that heat treatment improved the decorative properties of the exotic wood.

关键词： Heat treatment color gloss hardness anigre wood cedrorana wood cemara wood coronilla wood

Dark Soliton Solutions of Space-Time Fractional Sharma–Tasso–Olver and Potential Kadomtsev–Petviashvili Equations

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Communications in Theoretical Physics 2017年第2期67卷 182-188页

作者： Ozkan Guner alper Korkmaz Ahmet Bekir Cankiri Karatekin University Department of International Trade Cankiri 18200 Turkey ankiri Karatekin University Department of Mathematics Cankiri 18200 Turkey Eskisehir Osniangazi University Department of Mathematics & Computers Eskisehir 26200 Turkey

Dark soliton solutions for space-time fractional Sharma–Tasso–Olver and space-time fractional potential Kadomtsev–Petviashvili equations are determined by using the properties of modified Riemann–Liouville derivative and fractional complex transform. After reducing both equations to nonlinear ODEs with constant coefficients, the tanh ansatz is substituted into the resultant nonlinear ODEs. The coefficients of the solutions in the ansatz are calculated by algebraic computer computations. Two different solutions are obtained for the Sharma–Tasso–Olver equation as only one solution for the potential Kadomtsev–Petviashvili equation. The solution profiles are demonstrated in 3D plots in finite domains of time and space.

关键词： exact solution modified Riemann–Liouville derivative space-time fractional Sharma–Tasso–Olver equation space-time fractional potential Kadomtsev–Petviashvili equation

N2 disease in non-small cell lung cancer patients,diagnosis and evaluation:a Turkish chest surgeon s perspective

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中国肺癌杂志 2008年第5期11卷 622-626页

作者： alper TOKER Department of Thoracic Surgery Istanbul Medical School Istanbul University

Mediastinal or N2 disease is the most important factor in selecting the optimal treatment strategy in patients without distant metastasis.A direct surgical resection has not generally been accepted as a treatment modality in whom mediastinal nodal involvement is *** with lung cancer can be diagnosed as clinical N2 disease based on CT and PET-CT characteristics of the mediastinum and the clinical *** diagnostic modalities used in the detection of N2 disease are:mediastinoscopy,endoesophageal ultrasound guided biopsy(EUS),transbronchial needle aspiration(TBNA),endobronchial ultrasound guided biopsy(EBUS),video-assisted thoracoscopic surgery(VATS),and mediastinotomy/extended *** this article,the author discusses about invasive and noninvasive techniques on the evaluation of mediastinal disease and presents his experience on this topic.

关键词： Mediastinum Neoplasm staging Lung neoplasms

Glass Fibre Reinforced Concrete Rebound Optimization

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Computer Modeling in Engineering & Sciences 2017年第2期113卷 203-218页

作者： Sadik alper YILDIZEL Muhammet Ensar YIGIT Gokhan KAPLAN Karamanoglu MehmetBey UniversityFaculty of EngineeringCivil Engineering DepartmentKaraman/T URKEY Celal Bayar University Faculty of EngineeringCivil Engineering DepartmentManisa/TURKEY Kastamonu University Kastamonu Vocational SchoolKastamonu/TURKEY

Glass fibre reinforced concrete placement technique generates losses due to rebound effects of the already sprayed concrete *** concrete amount cause a significant difference between the initial mix design and emplaced mix *** from the structural differences,it comes with a cost increase which was resulted by the splashed concrete *** factors such as viscosity and quantity of mixes dominate this rebound amount in sprayed glass fibre reinforced concrete applications depending on production technologies and processes;however,this research focuses on the spray distance and the angle of the spray gun which mainly effects the rebound amount in glass fibre reinforced concrete *** paper aims to understand the required angle and distance for glass fibre reinforced concrete mixes having on-site plastic viscosity *** fibre reinforced mixtures were also modelled with a finite element method based software and,the analysis results were compared with production line *** of the analysis and on-site studies showed a decisive correlation between,discharge distance,discharge angle and the viscosity of the concrete.

关键词： Glass fibre glass fibre reinforced concrete finite elements method spray distance spray Angle

Arrhythmogenic epilepsy and pacing need: A matter of controversy

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World Journal of Clinical Cases 2015年第10期3卷 872-875页

作者： alper Kepez Okan Erdogan Marmara University Training and Research Hospital Cardiology Clinic

There is increasing awareness among the cardiology community regarding ictal bradyarrhythmias as a cause of loss of consciousness. A high degree of suspicion is necessary when diagnosing ictal bradyarrhythmias, and delay in diagnosing this condition may lead to morbidity associated with falls and trauma. Ictal bradyarrhythmias have also been suggested to be associated with sudden unexplained death in epilepsy, although evidence related to this association is limited. There is no guidelinedirected therapy for symptomatic ictal bradyarrhythmias due to a lack of randomized, controlled trials. Cardiac pacemaker therapy is commonly used for these patients; however, currently, there is no universal agreement on the pacing indications for these patients. In this review, we focus on the pathophysiology and clinical presentation of ictal bradyarrhythmias and then discuss the pacing need based on the available literature data.

关键词： Arrhythmogenic epilepsy Syncope Ictal bradyarrhythmia Pacemaker Anticonvulsive therapy

An Assessment of the Seismic Performance of the Historic Tigris Bridge

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Open Journal of Civil Engineering 2019年第3期9卷 230-239页

作者： Atila Kumbasaroglu alper Celik osman Demir Ahmet Ihsan Turan Hakan Yalciner Civil Engineering Department Erzincan University Erzincan Turkey

Turkey is a country that is vulnerable to earthquakes and has experienced many major earthquakes that completely destroyed or caused significant damage to numerous historic structures. Today, using computer software, it is important to numerically model and analyze historic structures that need significant restoration and strengthening, to evaluate them from a perspective of seismic resistance, and to reinforce them without altering their originality. In this study, a finite element model of the historic Tigris Bridge on the Tigris River was created. First, the stresses and deformation caused by its own weight were determined. Subsequently, dynamic analyses were performed in the time domain using past earthquake ground motion records. Displacement and stress values obtained for each earthquake record in these time domain analysis were compared to each other to evaluate the seismic behavior of the bridge comparatively. The seismic performance of the bridge was determined on the basis of the “Guidelines on the Management of Earthquake Risks for Historic Structures” published by the Directorate General of Religious Foundations in Turkey.

关键词： Seismic Performance of Historic Buildings Historic Bridge Time Domain Analysis

CO_(2) utilization: Developments in conversion processes

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Petroleum 2017年第1期3卷 109-126页

作者： Erdogan alper Ozge Yuksel Orhan Hacettepe University Department of Chemical EngineeringAnkaraTurkey

Carbon dioxide capture,utilization and storage(CCUS)eincluding conversion to valuable chemicals-is a challenging contemporary issue having *** prospect to utilize carbon dioxide(CO_(2))as a feedstock for synthetic applications in chemical and fuel industries-through carboxylation and reduction reactions-is the subject of this *** statute of the heterogeneously catalyzed hydrogenation,as well as the photocatalytic and electrocatalytic activations of conversion of CO_(2) to value-added chemicals is *** CO_(2) as a viable alternative to natural gas and oil as carbon resource for the chemical supply chain,three stages of development;namely,(i)existing mature technologies(such as urea production),(ii)emerging technologies(such as formic acid or other single carbon(C1)chemicals manufacture)and(iii)innovative explorations(such as electrocatalytic ethylene production)have been identified and highlighted.A unique aspect of this review is the exploitations of reactions of CO2 ewhich stems from existing petrochemical plants-with the commodity petrochemicals(such as,methanol,ethylene and ethylene oxide)produced at the same or nearby complex in order to obtain value-added products while contributing also to CO_(2) fixation *** worldwide ethylene oxide facilities,it is recognized that they produce about 3 million tons of CO2 *** a CO_(2) resource,which is already separated in pure form as a requirement of the process,should best be converted to a value-added chemical there avoiding current practice of discharging to the *** potential utilization of CO_(2),captured at power plants,should also been taken into consideration for *** CO_(2) source,which is potentially a raw material for the chemical industry,will be available at sufficient quality and at gigantic quantity upon realization of on-going tangible capture *** resulting from carboxylation reactions are obviou

关键词： Carbon capture and conversion Carboxylation Catalysis C1-chemicals CO_(2)utilization Copolymerization Dream reactions Electrocatalysis Photocatalysis Polymerization Reduction

Neutronic study on the effect of first wall material thickness on tritium production and material damage in a fusion reactor

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Nuclear Science and Techniques 2022年第4期33卷 33-50页

作者： HacıMehmet S¸ahin Güven Tunc¸ alper Karakoc¸ Melood Mohamad Omar Department of Energy Systems Engineering Technology FacultyKarabuk UniversityKarabukTurkey Department of Energy Systems Engineering Technology FacultyGazi UniversityAnkaraTurkey Department of Energy Systems Engineering Institute of Graduate ProgramsKarabuk UniversityKarabukTurkey

In this study,the effects of changing first wall materials and their thicknesses on a reactor were investigated to determine the displacement per atom(DPA)and gas production(helium and hydrogen)in the first wall,as well as the tritium breeding ratio(TBR)in the coolant and tritium breeding ***,the modeling of the magnetic fusion reactor was determined based on the blanket parameters of the International Thermonuclear Experimental Reactor(ITER).Stainless steel(SS 316 LNIG),Oxide Dispersion Strengthened Steel alloy(PM2000 ODS),and China low-activation martensitic steel(CLAM)were used as the first wall(FW)*** family molten salt materials(FLiBe,FLiNaBe,FLiPb)and lithium oxide(LiO_(2))were considered the coolant and tritium production material in the blanket,*** transport calculations were performed using the wellknown 3D code MCNP5 using the continuous-energy Monte Carlo *** built-in continuous energy nuclear and atomic data libraries along with the Evaluated Nuclear Data file(ENDF)system(ENDF/B-V and ENDF/B-VI)were ***,the activity cross-section data library CLAW-IV was used to evaluate both the DPA values and gas production of the first wall(FW)*** interface computer program written in the FORTRAN 90 language to evaluate the MCNP5 outputs was developed for the fusion reactor *** results indicated that the best TBR value was obtained for the use of the FLiPb coolant,whereas depending on the thickness,the first wall replacement period in terms of radiation damage to all materials was between 6 and 11 years.

关键词： ITER First wall material Material damage Tritium breeding ratio Fluorides family molten salt materials