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Applied mathematics and mechanics(English Edition) 2023年第12期44卷 2109-2138页

作者： U.N.ARIBAS m.aydin m.ATALAY m.H.OmURTAG Department of Civil Engineering Istanbul Medipol UniversityIstanbul 34810Türkiye

The warping may become an important factor for the precise transverse vibrations of curved ***,the first aim of this study is to specify the structural design parameters where the influence of cross-sectional warping becomes great and the first-order shear deformation theory lacks the precision *** outof-plane vibrations of the first-order shear deformation theory are compared with the warping-included vibrations as the curvature and/or thickness increase for symmetric and asymmetric transversely-functionally graded(TFG)curved *** second aim is to determine the influence of design parameters on the *** circular/exact elliptical beams are formed via curved mixed finite elements(mFEs)based on the exact curvature and *** stress-free conditions are satisfied on three-dimensional(3D)constitutive *** variation of functionally graded(FG)material constituents is considered based on the power-law *** cross-sectional warping deformations are defined over a displacement-type FE *** warping-included mFEs(W-mFEs)provide satisfactory 3D structural characteristics with smaller degrees of freedom(DOFs)compared with the brick *** Newmark method is used for the forced vibrations.

关键词： mixed finite element(mFE) free vibration forced vibration warping exact elliptical beam functionally graded(FG)beam

Performance of recycling abrasives in rock cutting by abrasive water jet

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Journal of Central South University 2015年第3期22卷 1055-1061页

作者： Gokhan aydin Karadeniz Technical University Department of Mining Engineering

Rock cutting performance of recycling abrasives was investigated in terms of cutting depth, kerf width, kerf taper angle and surface roughness. Gravity separation technique was employed to separate the abrasives and the rock particles. The recycling abrasive particles were then dried and sieved for determination of their disintegration behaviors. Before each cutting with recycling abrasives, the abrasive particles less than 106 ?m were screened out. It is revealed that a considerable amount of used abrasives can be effectively reused in the rock cutting. The reusabilities of abrasives are determined as 81.77%, 57.50%, 34.37% and 17.72% after the first, second, third and fourth cuttings, respectively. Additionally, it is determined that recycling must be restricted three times due to the excessive disintegration of abrasives with further recycling. moreover, it is concluded that cutting depth, kerf width and surface roughness decreases with recycling. No clear trend is found between the kerf taper angle and recycling. Particle size distribution is determined as an important parameter for improving the cutting performance of recycling abrasives.

关键词： abrasive water jet rock abrasive recycling

Effect of solid waste materials on properties of magnesium matrix composites-A systematic review

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Journal of magnesium and Alloys 2022年第10期10卷 2673-2698页

作者： Fatih aydin TOBB Technical Sciences Vocational School Karabuk UniversityTurkey

The need for light and high specific strength materials in many fields such as automotive and aerospace is increasing day by ***(mg)-based materials have become attractive for many industries thanks to their high specific strength, good vibration damping ability, and recyclability. However, mg’s low strength and wear resistance are important barriers limiting its industrial use. Researchers are developing mg matrix composites using various reinforcements and expanding the use of mg-based materials. The conventional reinforcements are Al2O3, SiC, B4C, TiB2, CNT, and GNPs for the production of mg matrix composites. Researchers have been trying to reduce the cost of mg matrix composites in recent years by using cheaper and environmentally friendly reinforcements. These reinforcements are solid wastes such as eggshell, fly ash, red mud, and waste glass, and their use in composite systems is becoming more common day by day. This review focuses on the mg matrix composites reinforced with solid waste particles and the changes in wear, mechanical, corrosion, and thermal properties with the addition of these reinforcements.

关键词： mg matrix composites Solid waste reinforcements Wear Corrosion mechanical properties

Neurogenesis dynamics in the olfactory bulb:deciphering circuitry organization, function, and adaptive plasticity

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Neural Regeneration Research 2025年第6期20卷 1565-1581页

作者： moawiah m.Naffaa Department of Psychology and Neuroscience Duke UniversityDurhamNCUSA Department of Cell Biology Duke University School of MedicineDurhamNCUSA

Adult neurogenesis persists after birth in the subventricular zone, with new neurons migrating to the granule cell layer and glomerular layers of the olfactory bulb, where they integrate into existing circuitry as inhibitory interneurons. The generation of these new neurons in the olfactory bulb supports both structural and functional plasticity, aiding in circuit remodeling triggered by memory and learning processes. However, the presence of these neurons, coupled with the cellular diversity within the olfactory bulb, presents an ongoing challenge in understanding its network organization and function. moreover,the continuous integration of new neurons in the olfactory bulb plays a pivotal role in regulating olfactory information processing. This adaptive process responds to changes in epithelial composition and contributes to the formation of olfactory memories by modulating cellular connectivity within the olfactory bulb and interacting intricately with higher-order brain regions. The role of adult neurogenesis in olfactory bulb functions remains a topic of debate. Nevertheless, the functionality of the olfactory bulb is intricately linked to the organization of granule cells around mitral and tufted cells. This organizational pattern significantly impacts output, network behavior, and synaptic plasticity, which are crucial for olfactory perception and memory. Additionally, this organization is further shaped by axon terminals originating from cortical and subcortical regions. Despite the crucial role of olfactory bulb in brain functions and behaviors related to olfaction, these complex and highly interconnected processes have not been comprehensively studied as a whole. Therefore, this manuscript aims to discuss our current understanding and explore how neural plasticity and olfactory neurogenesis contribute to enhancing the adaptability of the olfactory system. These mechanisms are thought to support olfactory learning and memory, potentially through increased

关键词： network adaptability neurogenesis neuronal communication olfactory bulb olfactory learning olfactory memory synaptic plasticity

mitochondria–cGAS–STING axis is a potential therapeutic target for senescence-dependent inflammaging-associated neurodegeneration

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Neural Regeneration Research 2025年第3期20卷 805-807页

作者： Josém.Izquierdo Centro de Biología molecular Severo Ochoa(CBm) Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid(CSIC-UAM)MadridSpain

The word “senescence” comes from the Latin senescens, meaning “to begin to age”, and is characterized by a long-lasting but reversible block in proliferation, resulting from stress-induced cell cycle arrest of pre... 详细信息

关键词： Latin potential lasting

Evaluation of a developed bypass viscous damper performance

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Frontiers of Structural and Civil Engineering 2020年第3期14卷 773-791页

作者： mahrad FAHImINIA aydin SHISHEGARAN Structural Engineering Islamic Azad UniversityTehranIran Structural Engineering School of Civil EngineeringIran University of Science and TechnologyTehranIran

In this study,the dynamic behavior of a developed bypass viscous damper is *** viscous damper has a flexible hose as an external orifice through which the inside fluid transfer from one side to the other side of the inner ***,the viscosity coficient of the damper can be adjusted using geometrical dimensions of the ***,the external orifice acts as a thermal compensator and alleviates viscous heating of the *** to experimental results,Computational Fluid Dynamic(CFD)model,a numerical formula and the *** model are found and assessed;therefore,the verification of numerical and computational models are evaluated for ***,a simplifed procedure is proposed to design structures with bypass viscous *** design procedure is applied to design an 8-story hospital structure with bypass viscous dampers,and it is compared with the same structure,which is designed with concentric braces and without *** time history analyses revealed that the hospital with viscous damper experiences less structural inelastic demands and fewer story accelerations which mean fewer demands on nonstructural ***,seismic behaviors of nonstructural masonry claddings are also compared in the cases of hospital structure with and without dampers.

关键词： developed viscous damper extermal orifice energy dissipation seismic behavior CFD model of viscous damper a simplifed model

A New Palladium Complex Containing the mixture of Carbene and Phosphine Ligands: Synthesis, Crystal Structure and Spectral FT-IR, NmR and UV-Vis Researches

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Chinese Journal of Structural Chemistry 2019年第10期38卷 1664-1672,1609页

作者： aydin Aktas Inonu University Faculty of Science Department of Chemistry

In this paper,a new Pd-based complex that contains A^-heterocyclic carbene(NHC)and triphenylphosphine(PPh?)ligands was *** c/5-(NHC)PdBr2(PPh3)complex has been prepared by the substitution of 3?chloropyridine ligand in(NHC)PdBr2(3-chloropyridine)complex with *** complex has been characterized by using 1^H NmR,^31P{^1H}NmR,^13C{^1H}NmR,FTIR,UV-Vis spectroscopy and elemental analysis *** molecular and crystal structures of the cz5-(NHC)PdBr2(PPh3)complex were determined by singlecrystal X-ray diffraction method.

关键词： FTIR N-heterocyclic carbene NmR UV-VIS X-ray diffraction

Topology optimization and seismic collapse assessment of shape memory alloy(SmA)-braced frames:Effectiveness of Fe-based SmAs

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Frontiers of Structural and Civil Engineering 2022年第3期16卷 281-301页

作者： aydin HASSANZADEH Saber mORADI Department of Civil Engineering Ryerson UniversityToronto M5B 2K3Canada

This paper presents a seismic topology optimization study of steel braced frames with shape memory alloy(SmA)*** SmA-braced frames(SmA-BFs)with either Fe-based SmA or NiTi braces are determined in a performance-based seismic design *** topology optimization is performed on 5-and 10-story SmA-BFs considering the placement,length,and cross-sectional area of SmA bracing ***,strength,and performance-based design constraints are considered in the *** seismic response and collapse safety of topologically optimal SmA-BFs are assessed according to the FEmA P695 methodology.A comparative study on the optimal SmA-BFs is also presented in terms of total relative cost,collapse capacity,and peak and residual story *** results demonstrate that Fe-based SmA-BFs exhibit higher collapse capacity and more uniform distribution of lateral displacement over the frame height while being more cost-effective than NiTi braced *** addition to a lower unit price compared to NiTi,Fe-based SmAs reduce SmA material *** frames with Fe-based SmA braces,the SmA usage is reduced by up to 80%.The results highlight the need for using SmAs with larger recoverable strains.

关键词： topology optimization shape memory alloy Fe-based SmA steel braced frames performance-based seismic design collapse assessment

Brain-penetrating neurotrophic factor mimetics: HER-096 as a disease-modifying therapy for Parkinson’s disease

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Neural Regeneration Research 2025年第4期20卷 1094-1095页

作者： Natalia Kulesskaya Kira m.Holmström Henri J.Huttunen Herantis Pharma Plc EspooFinland

Neurotrophic factors as a therapeutic approach in neurodegenerative diseases:A major unmet need in the field of central nervous system diseases is disease-modifying *** for decades there have been various symptomatic treatments available to alleviate the symptoms of the disease,disease-modification,*** that stop,significantly delay,or reverse the progression of the disease,has been turned out to a difficult goal to achieve.

关键词： diseases treatment therapeutic

Role of neutrino form factors in the energy loss rates of the pair annihilation process

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Chinese Physics C 2022年第7期46卷 68-73页

作者： C.aydin Department of Physics Karadeniz Technical University61080TrabzonTurkey

The stellar energy loss rates due to the production of neutrino pairs e^(+)e^(-) → (W, Z, γ) → veve are calculated using the minimal extension of the Standard model with the electromagnetic properties of the Dirac neutrinos, which takes the contributions of the neutrino charge radius, anapole moment, and dipole moments into account. We show that the contribution of the electron neutrino's dipole moment is small compared with that of the charge radius. The obtained results are also compared with the results obtained using the Standard model.

关键词： neutrinos form factors energy loss rates