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Journal of Rare Earths 2013年第7期31卷 715-721页

作者： Samir Alghool m.sh.zoromba Hanan F.Abd El-Halim Department of Chemistry Faculty of SciencePort Said UniversityPort Said 42521Egypt Department of Chemistry Faculty of PharmacyMisr International UniversityIsmailia RoadKm 28 CairoEgypt

Complexes of La （III）, Nd（III）, Gd（III）, Sm（III）, and Ce（IV） were synthesized with Schiff base [（3,5-di-tert-butyl-2-hy- droxybenzyl） amino] acetic acid （H3L）. The ligand and its complexes were synthesized and characterized based on the following analysis： elemental analyses, FAB-mass, molar conductance measurements, magnetic measurement, UV-visible, IR, and NmR spectral studies. The spectral data revealed that the ligand acted as a neutral tridentate coordinating to metal ion through ONO donor sequence. Thermal degradation studies of the ligand and its complexes showed that the previous lanthanide complexes were more thermally stable than the ligand itself. The Schiff base and its complexes were screened for their antibacterial （Escherichia coli, Staphylococcus aureus） and antifungal （Aspergillus flavus and Candida Albicans）.

关键词： lanthanide Schiffbase complexes physical properties biological activity rare earths

FEm for Blood-Based SWCNTs Flow Through a Circular Cylinder in a Porous medium with Electromagnetic Radiation

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Communications in Theoretical Physics 2019年第12期71卷 1425-1434页

作者： mohamed R.Eid A.F.Al-Hossainy m.sh.zoromba Department of mathematics Faculty of ScienceNorthern Border UniversityArar1321Saudi Arabia Department of mathematics Faculty of ScienceNew Valley UniversityAl-KhargaAl-Wadi Al-Gadid72511Egypt Department of Chemistry Faculty of ScienceNew Valley UniversityAl-KhargaAl-Wadi Al-Gadid72511Egypt Department of Chemistry Faculty of ScienceNorthern Border UniversityArar1321Saudi Arabia Department of Chemical and materials Engineering King Abdulaziz UniversityRabigh 21911Saudi Arabia Department of Chemistry Faculty of SciencePort Said University42521 Port-SaidEgypt

This work aims to study magnetohydrodynamic flow through a circular cylinder in a horizontal position of SWCNTs in blood as a base fluid in the existence of non-linear thermal radiation and heat source/*** kinds of nanoparticles shapes are *** study is employed the finite element technique to explore and enhance the influences of essential parameters on temperature profiles and is debated the heat transport within blood injects with SWCNTs and exposes to electromagnetic *** treatment with thermal analysis and heat transfer rate being a better substitute more than surgery and chemotherapy for cancer *** of nanoparticles thermal features is a mounting area of nanomedicine field because of the probable for purposeful demolition of cancer *** remedy is relied on many parameters,including nanofluid thermal conductivity,nanoparticles volume fraction,thermal radiation and power and heat *** numerical solutions for flow and heat transfer features are assessed for diverse governing parameters *** obtained results are substantiated against the relevant numerical results in the published *** show that both flow velocity and temperature increase for larger values of thermal radiation,heat source and SWCNTs volume fraction with lamina and cylinder ***,spherical shape of SWCNTs occurs high disturbances in velocity and temperature distribution in the case of cooled cylinder.

关键词： finite element method heat transfer blood SWCNTs electromagnetic radiation

Swift XRT Analysis of Type II-P Supernova SN 2008ij

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International Journal of Astronomy and Astrophysics 2024年第3期14卷 220-229页

作者： sh. m. shehata Ahmed m. Fouad R. m. Samir A. A. shaker National Research Institute of Astronomy and Geophysics (NRIAG) Helwan Egypt

This study investigates the X-ray properties and evolution of Type II supernovae (SNe II) observed by Swift, examining variations among supernovae and exploring their X-ray characteristics over time. We present the first X-ray study of the Type IIp supernova SN 2008ij using data from the Swift X-ray mission. This investigation focuses on its spectral properties, identifying an X-ray flux of 1.20 (+0.11, −0.10) × 10−13 erg/cm2/s and a plasma temperature of 4.76 (+1.22, −0.83) keV. Our study marks an advancement in understanding SN 2008ij, providing crucial results into its X-ray emission characteristics. These results lay the groundwork for future studies of Type IIp supernovae, offering a foundation for exploring their evolutionary and physical processes.

关键词： X-Ray Core Collapse Supernova Swift (XRT) Observations

magnetic resonance imaging-guided focused ultrasound thalamotomy launch with remote telemedicine international proctorship

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Chronic Diseases and Translational medicine 2024年第1期10卷 40-50页

作者： Igor V.Buzaev Rezida m.Galimova Dinara I.Nabiullina Sergey N.Illarioshkin Naufal sh.Zagidullin shamil m.Safin Department of Surgery Bashkir State Medical UniversityUfaRussia Intelligent Neurosurgery Clinic Ltd.International Medical Center V.S.Buzaev memorialUfaRussia Directorate Research Center of NeurologyVolokolamskoye ShosseMoscowRussia

Background: COVID-19 limitations have hindered the implementation of new technologies by preventing proctors from coming to the *** share our first experience of magnetic resonance imaging(mRI)-guided focused ultrasound(mRgFUS)treatment with an international remote online proctorship,and develop and evaluate the methodology of remote mRgFUS ***: This single-center,nonrandomized controlled prospective study included 94 patients:27 with essential tremor(ET)and 67 with tremor-dominant Parkinson's disease(PD).The coming of proctors was impossible,so we arranged for the remote participation of proctors from the United Kingdom,Spain,and Israel.A total of 38 patients(40.4%)received telemedicine-proctored treatment(proctor group)and 56 received their treatment independently(solo group).We used the Clinical Rating Scale for Tremor(CRST)for ET patients and the Unified Parkinson's Disease Rating Scale(UPDRS)Part III for PD ***: In patients with ET,success rates were 81.8%(proctor group)and 100%(solo group)(p=0.22).CRST reduction on the treated side was 71.43%[65.83%;80.56%](proctor group)versus 60.87%[53.99;79.58](solo group)(p=0.19).None of the patients showed worsening of tremors within 1 *** patients with PD,the success rates were 92.6%(proctor group)and 100%(solo group)(p=0.08).The UPDRS Part III improvement was 30.1%(proctor group)versus 39.9%(solo group)(p=0.003).The 1-year recurrence rate was 40%(proctor group)and 17.5%(solo group)(p=0.04).No complications were observed at 6 ***: We developed a feasible and safe methodology for telemedicine remote online-proctored mRgFUS *** significant difference was observed between the solo and developed remote proctor protocols in terms of complication rate,effect,and long-term results;however,UPDRS Part III improvement was better in the PD solo *** study demonstrated that the mRgFUS international proctorship can be performed successfully remotely.

关键词： essential tremor mRgFUS Parkinson's disease proctor telemedicine

Influences of substrate temperature on microstructure and corrosion behavior of APS Ni_(50)Ti_(25)Al_(25) inter-metallic coating

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Chinese Physics B 2018年第2期27卷 607-612页

作者： sh Khandanjou m Ghoranneviss sh Saviz m Reza Afshar Plasma Physics Research Center Science and Research Branch Islamic Azad University Department of materials Engineering Science and Research Branch Islamic Azad University

In the present investigation, Ni_（50）Ti_（25）Al_（25）（at.%） mechanically alloyed powder is deposited on carbon steel *** the coating process, the substrate is heated to temperature ranging from room temperature to 400℃. The microstructure, porosity, microhardness, adhesion strength, and corrosion behavior of the coating are investigated at different substrate temperatures. Results show that coating porosity is lower on high temperature surface. microhardness and adhesion strength of the deposition layer on the substrate without preheating have lower values than with preheating. The polarization test result shows that corrosion performance of the coating is dependent on micro cracks and porosities and the increasing of substrate temperature can improve the quality of coating and corrosion performance.

关键词： Ni50Ti25Al25 coating air plasma spray planetary ball milling inter-metallic compounds corrosion resistance

Solving two-dimensional Volterra-Fredholm integral equations of the second kind by using Bernstein polynomials

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Applied mathematics(A Journal of Chinese Universities) 2017年第1期32卷 68-78页

作者： m.sh.Dahaghin sh.Eskandari Department of mathematics Shahrekord University Shahrekord Iran

In this paper, we present a numerical method for solving two-dimensional VolterraFredholm integral equations of the second kind（2DV-FK2）. Our method is based on approximating unknown function with Bernstein polynomials. We obtain an error bound for this method and employ the method on some numerical tests to show the efficiency of the method.

关键词： Volterra approximating approximate variational proof iterative uniformly exact wavelet inequality

Kerosene-alumina nanofluid flow and heat transfer for cooling application

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Journal of Central South University 2016年第4期23卷 983-990页

作者： m.mahmoodi sh.Kandelousi Department of Aerospace Engineering Malek-Ashtar University of Technology Department of mechanical Engineering Babol University of Technology

Kerosene-alumina nanofluid flow and heat transfer in the presence of magnetic field are studied. The basic partial differential equations are reduced to ordinary differential equations which are solved semi analytically using differential transformation method. Velocity and temperature profiles as well as the skin friction coefficient and the Nusselt number are determined analytically. The influence of pertinent parameters such as magnetic parameter, nanofluid volume fraction, viscosity parameter and Eckert number on the flow and heat transfer characteristics is discussed. Results indicate that skin friction coefficient decreases with increase of magnetic parameter, nanofluid volume fraction and viscosity parameter. Nusselt number increases with increase of magnetic parameter and nanofluid volume fraction while it decreases with increase of Eckert number and viscosity parameter.

关键词： magnetic field nanofluid heat transfer differential transformation method

Discontinuous Sturm-Liouville Problems Containing Eigenparameter in the Boundary Conditions

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Acta mathematica Sinica,English Series 2006年第5期22卷 1519-1528页

作者： m.KADAKAL O.sh.mUKHTAROV Ondokuz mayis University Science and Arts Faculty Department of MathematicsKurupelit 55139 Samsun Turkey Gaziosmanpasa University Science and Arts Faculty Department of MathematicsTokat 60000 Turkey

In this paper, discontinuous Sturm-Liouville problems, which contain eigenvalue parameters both in the equation and in one of the boundary conditions, are investigated. By using an operatortheoretic interpretation we extend some classic results for regular Sturm-Liouville problems and obtain asymptotic approximate formulae for eigenvalues and normalized eigenfunctions. We modify some techniques of [Fulton, C. T., Proc. Roy. Soc. Edin. 77 （A）, 293-308 （1977）], [Walter, J., math. Z., 133, 301-312 （1973）] and [Titchmarsh, E. C., Eigenfunctions Expansion Associated with Second Order Differential Equations I, 2nd edn., Oxford Univ. Pres, London, 1962], then by using these techniques we obtain asymptotic formulae for eigenelement norms and normalized eigenfunctions.

关键词： Sturm-Liouville problem discontinuous boundary-value problem eigenvalue and eigenfunction eigenelement normalized eigenfunctions

Lower Bounds for Local Cohomology modules with Respect to a Pair of Ideals

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Algebra Colloquium 2016年第2期23卷 329-334页

作者： m. Lotfi Parsa sh. Payrovi Faculty of Science Sayyed Jamaleddin Asadabadi University Postal code: 65418-3-5583 Asadabad Iran Department of mathematics Imam Khomeini International University Postal code: 34149-1-6818 Qazvin Iran

Let R be a Noetherian ring, I and J two ideals of R, m an R-module and t an integer. Let S be a Serre subcategory of the category of R-modules satisfying the co ondition CI, and N be a finitely generated R-module with SuppRN= V（a） for some a ∈ W（I, J）. It is shown that if ExtR^J（N,HI^i,J（m）） ∈ S for all i 〈 t and all j 〈 t - i, then Ha^i（m） ∈ S for all i 〈 t. Let S be the class of all R-modules N with divmR N ≤ k, where k is an integer. It is proved that if Ha^i（m） ∈ S for all i 〈 t and all a ∈ W（I, J）, then HI^i,j（m） ∈ S for all i 〈 t. It follows that inf{i ： HI^i,j（m） S} = inf（inf{i ： Ha^i（m） S）： a ∈W（I,J）}.

关键词： extension functor local cohomology Serre subcategory

Intertype superconductivity evoked by the interplay of disorder and multiple bands

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Frontiers of physics 2024年第4期19卷 81-89页

作者： P.m.marychev A.A.shanenko A.V.Vagov HSE University 101000 MoscowRussia Center for Advanced mesoscience and Nanotechnology MIPTDolgoprudny141700Russia

Nonmagnetic impurity scattering is known to shift up the Ginzburg-Landau parameter k of a *** this case,when the system is initially in type I,it can change its magnetic response,crossing the intertype domain with k~1 between the two standard superconductivity types and arriving at type *** the present work we demonstrate that the impact of disorder can be much more profound in the presence of the multiband structure of the charge carrier *** particular,when the band diffusivities differ from each other,the intertype domain tends to expand significantly,including points with k>>1 that belong to deep type-Ⅱ in conventional single-band *** finding sheds light on the nontrivial disorder effect and significantly complements earlier results on the enlargement of the intertype domain in clean multiband superconductors.

关键词： superconductivity disorder intertype superconductivity twoband model