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Superconducting parameter determination for (Co0.5Zn0.5Fe2O4)x/Cu0.5Tl0.5-1223 composite

Journal of Advanced Ceramics 2016年第3期5卷 210-218页

作者： m.mE.BARAKAT N.AL-SAYYED R.AWAD A.I.ABOU-aly Physics Department Faculty of Science Alexandria University Alexandria Egypt Physics Department Faculty of Science Beirut Arab University Beirut Lebanon

The addition of magnetic Co0.5Zn0.5Fe2O4 nanoparticles to the superconducting Cu0.5Tl0.5-1223 phase has been used to investigate the electrical resistivity behavior of the composite above the superconducting transition temperature Tc. This was studied according to the opening of spin gap and fluctuation conductivity. The results indicated that the pseudogap temperature (T*) and superconducting fluctuation temperature (Tscf) change by increasing the addition of Co0.5Zn0.5Fe2O4 nanoparticles. It was found that T* is related to hole carrier concentration P and it also depends on the antiferromagnetic fluctuation affected by magnetic nanoparticles. The excess-conductivity analysis showed four different fluctuation regions started from high temperature up to Tc, and they were denoted by short wave (sw), two-dimensional (2D), three-dimensional (3D), and critical (cr) fluctuations. The crossover temperature between 3D and 2D (T3D-2D) in the mean field region was decreased by increasing the addition of Co0.5Zn0.5Fe2O4 nanoparticles, in accordance with the decrease in Tscf with x. The coherence length at 0 K along c-axis ξc(0), effective layer thickness of the 2D system d, and inter-layer coupling strength J were estimated as a function of Co0.5Zn0.5Fe2O4 nanoparticle addition. moreover, the thermodynamics, lower and upper critical magnetic fields, as well as critical current density have been calculated from the Ginzburg number NG. It was found that the low concentration of Co0.5Zn0.5Fe2O4 nanoparticles up to x = 0.08 wt% improves the superconducting parameters of Cu0.5Tl0.5-1223 phase. On the contrary, these parameters were deteriorated f

关键词： Co0.5Zn0.5Fe2O4 nanoparticles Cu0.5Tl0.5-1223 phase pseudogap temperature fluctuation conductivity

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Abundant closed form wave solutions to some nonlinear evolution equations in mathematical physics

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Journal of Ocean Engineering and Science 2020年第3期5卷 269-278页

作者： m.mamun miah aly R.Seadawy H.m.Shahadat Ali m.Ali Akbar Department of mathematics Khulna University of Engineering&TechnologyBangladesh mathematics Department Taibah UniversityAl-Madinah Al-MunawarahSaudi Arabia Department of mathematics Beni-Suef UniversityEgypt Department of Applied mathematics Noakhali Science and Technology UniversityBangladesh Department of Applied mathematics University of RajshahiRajshahi 6205Bangladesh

The propagation of waves in dispersive media,liquid flow containing gas bubbles,fluid flow in elastic tubes,oceans and gravity waves in a smaller domain,spatio-temporal rescaling of the nonlinear wave motion are delineated by the compound Korteweg-de Vries(KdV)-Burgers equation,the(2+1)-dimensional maccari system and the generalized shallow water wave *** this work,we effectively derive abundant closed form wave solutions of these equations by using the double(G′/G,1/G)-expansion *** obtained solutions include singular kink shaped soliton solutions,periodic solution,singular periodic solution,single soliton and other solutions as *** show that the double(G′/G,1/G)-expansion method is an efficient and powerful method to examine nonlinear evolution equations(NLEEs)in mathematical physics and scientific application.

关键词： Close form solutions KdV-Burgers equation The(2+1)-dimensional maccari system The generalized shallow water wave equation

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Optical soliton and elliptic functions solutions of Sasa-satsuma dynamical equation and its applications

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Applied mathematics(A Journal of Chinese Universities) 2021年第2期36卷 229-242页

作者： aly R.Seadawy Naila Nasreen LU Dian-chen mathematics department Faculty of scienceTaibah UniversityAI-Madinah Al-MunawarahSaudi Arabia Faculty of Science Jiangsu UniversityZhenjiang 212013China

The Sasa-satsuma(SS)dynamical equation interpret propagation of ultra-short and femto-second pulses in optical *** dynamical model has important physical *** this article,two mathematical techniques namely,improved F-expansion and improved aux-iliary methods are utilized to construct the several types of solitons such as dark soliton,bright soliton,periodic soliton,Elliptic function and solitary waves solutions of Sasa-satsuma dynamical *** results have imperative applications in sciences and other fields,and construc-tive to recognize the physical structure of this complex dynamical *** computing work and obtained results show the infuence and effectiveness of current methods.

关键词： Sasa-Satsuma equation improved F-expansion and auxiliary equation methods solitons elliptic function and periodic solutions

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Design and Implementation of Wheel Chair Control System Using Particle Swarm Algorithm

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Computers, materials & Continua 2021年第2期66卷 2005-2023页

作者： G.mousa Amr Almaddah Ayman A.aly mechanical Engineering Department College of EngineeringKing Abdulaziz UniversityJeddah21589Saudi Arabia Electrical and Computer Engineering College of EngineeringKing Abdulaziz UniversityJeddah21589Saudi Arabia mechanical Engineering Department College of EngineeringTaif UniversityTaif21944Saudi Arabia

About 10–20%of every country’s population is *** are at least 650 million people with a kind of disability *** and support are perquisites for many handicap people for participating in *** powered wheelchairs provide efficient mobility to motor impaired *** this paper a smart controller of a wheel chair mobile robot using Particle Swarm Optimization Proportional controller(PSO-P)was proposed where(PSO)algorithm was utilized to tune the proportional controller’s gains for each *** to improve wheelchair tracking trajectory,a kinematic model of a robot with linear and angular velocities parameters was *** controller performance was examined using the system parameters with respect to trajectory references.A simulation of the proposed controller showed good correlation of the trajectory track under different loading conditions.

关键词： PSO mobile robot trajectory tracking tracking control

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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

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Further investigations to extract abundant new exact traveling wave solutions of some NLEEs

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Journal of Ocean Engineering and Science 2019年第4期4卷 387-394页

作者： m.mamun miah aly R.Seadawy H.m.Shahadat Ali m.Ali Akbar Department of mathematics Khulna University of Engineering and TechnologyBangladesh mathematics Department Taibah UniversityAl-Madinah Al-MunawarahSaudi Arabia Department of mathematics Beni-Suef UniversityEgypt Department of Applied mathematics Noakhali Science and Technology UniversityBangladesh Department of Applied mathematics University of RajshahiRajshahi-6205Bangladesh

In this study,we implement the generalized(G/G)-expansion method established by Wang et *** examine wave solutions to some nonlinear evolution *** method,known as the double(G/G,1/G)-expansion method is used to establish abundant new and further general exact wave solutions to the(3+1)-dimensional Jimbo-miwa equation,the(3+1)-dimensional Kadomtsev-Petviashvili equation and symmetric regularized long wave *** solutions are extracted in terms of hyperbolic function,trigonometric function and rational *** solitary wave solutions are constructed from the obtained traveling wave solutions if the parameters received some definite *** of the solutions are also depicted to describe the phenomena apparently and the shapes of the obtained solutions are singular periodic,anti-kink,singular soliton,singular anti-bell shape,compaction *** method is straightforward,compact and reliable and gives huge new closed form traveling wave solutions of nonlinear evolution equations in ocean engineering.

关键词： Exact traveling wave solutions (G/G,1/G)-expansion method (3+1)-dimensional Jimbo-miwa equation (3+1)-dimensional Kadomtsev-Petviashvili equation Symmetric regularized long wave equation

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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

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Analytical Solution for Peristaltic Transport of Viscous Nanofluid in an Asymmetric Channel with Full Slip and Convective Conditions

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Communications in Theoretical Physics 2017年第7期67卷 96-102页

作者： Abdelhalim Ebaid Emad H. aly K. Vajravelu Department of mathematics Faculty of Science University of Tabuk Tabuk 71491 Saudi Arabia Department of mathematics Faculty of Science University of Jeddah Jeddah 21589 Saudi Arabia Department of mathematics Faculty of Education Ain Shams University Roxy 11757 Cairo Egypt Department of mathematics Department of Mechanical Materials and Aerospace Engineering University of Central Florida Orlando FL 32816 USA

The peristaltic ttow of nanofluids is a relatively new area of research. Scientists are of the opinion that the no-slip conditions at the boundaries are no longer valid and consequently, the first and the second order slip conditions should be addressed. In this paper, the effects of slip conditions and the convective boundary conditions at the boundary walls on the peristaltic flow of a viscous nanofluid are investigated for. Also, the exact analytical solutions are obtained for the model. The obtained results are presented through graphs and discussed. The results reveal that the two slip parameters have strong effects on the temperature and the nanoparticles volume fraction profiles. moreover, it has been seen that the temperature and nanoparticles volume fraction profiles attain certain values when the first slip condition exceeds a specified value. However, no limit value for the second slip parameter has been detected. Further, the effects of the various emerging parameters on the flow and heat transfer characteristics have been presented.

关键词： nanofluid peristaltic flow slip model convective conditions asymmetric channel

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Toxoplasma gondii infection can induce retinal DNA damage: an experimental study

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International Journal of Ophthalmology(English edition) 2014年第3期7卷 431-436页

作者： Nagwa mostafa El-Sayed Eman mohamed aly Department of medical Parasitology Research Institute of Ophthalmology Department of Basic Science Biophysics and Laser Science Unit Research Institute of Ophthalmology

AIm:To detect whether Toxoplasma gondii(***)infection of mice can induce retinal DNA ***:A total of 20 laboratory-bred male Swiss albino mice were used and divided into four groups:control group(non-infected animals);*** infected group;immunosuppressed infected group;and infected group treated with sulfadiazine and *** eyes were collected 6wk post infection and retinas were *** retina was immediately processed for comet assay and the frequency of tailed nuclei(DNA damage)was *** addition,retinal DNA damage was revealed by various comet assay parameters that were provided by the image analysis software including tail length,percentage of DNA in the tail,percentage of tailed cells and tail ***:The obtained results showed that *** infection induced a statistically significant increase in the frequency of tailed nuclei,tail length,percentage of DNA in the tail,and tail moment in mice retinal cells compared to the control group(which showed some degree of DNA damage).In immunosuppressed infected group,retinal DNA damage was severing and there was significant increase in various comet assay parameters compared to both control and infected *** treatment with sulfadiazine and pyrimethamine,retinal DNA damage decreased and all comet assay parameters showed a statistical significant decrease compared to infected ***:*** infection can induce DNA damage in mice retinal cells.

关键词： Toxoplasma gondii retinochoroiditis DNA damage comet assay

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multimodality image registration and fusion using neural network

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Journal of Harbin Institute of Technology(New Series) 2003年第3期10卷 235-240页

作者： mostafa G mostafa aly A Farag Edward Essock Computer Vision and Image Processing Laboratory Dept. of Electrical and Computer Engineering University of Louisville Louisville KY 40292 USAComputer Vision and Image Processing Laboratory Dept. of Electrical and Computer Engineering University of Louisville Louisville KY 40292 USADept. of Psychology University of Louisville Louisville kY 40292 USA

multimodality image registration and fusion are essential steps in building 3-D models from remotesensing data. We present in this paper a neural network technique for the registration and fusion of multimodali-ty remote sensing data for the reconstruction of 3-D models of terrain regions. A FeedForward neural network isused to fuse the intensity data sets with the spatial data set after learning its geometry. Results on real data arepresented. Human performance evaluation is assessed on several perceptual tests in order to evaluate the fusionresults.

关键词： data fusion image registration image interpolation neural network, 3-D model building

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