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Applications of variable thermal features for the bioconvective flow of Jeffrey nanofluids due to stretching surface with mass suction effects: Cattaneo-Christov m.d.l

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Applied mathematics and mechanics(English Edition) 2025年第2期46卷 391-402页

作者： S.U.KHAN m.GARAYEV AdNAN K.RAmESH m.EL mELIGY d.ABdUVALIEVA m.I.KHAN department of mathematics Namal University department of mathematics College of Science King Saud University department of mathematics Mohi-ud-Din Islamic University department of Pure and Applied mathematics School of Mathematical SciencesSunway University department of mathematics Graphic Era (Deemed to be University) department of mathematics School of Chemical Engineering and Physical SciencesLovely Professional University Jadara University Research Center Jadara University Applied Science Research Center Applied Science Private University department of mathematics and Information Technologies Tashkent State Pedagogical University department of mechanics and Engineering Science Peking University

The thermal nanofluids have garnered widespread attention for their use in multiple thermal systems, including heating processes, sustainable energy, and nuclear reactions. Research on nanofluids has revealed that the thermal efficiencies of such materials are adversely affected by various thermal features. The purpose of the current work is to demonstrate the thermal analysis of Jeffrey nanofluids with the suspension of microorganisms in the presence of variable thermal sources. The variable effects of thermal conductivity, Brownian diffusivity, and motile density are utilized. The investigated m.d.l also reveals the contributions of radiation phenomena and chemical reactions. A porous, saturated, moving surface with a suction phenomenon promotes flow. The m.d.ling of the problem is based on the implementation of the Cattaneo-Christov *** convective thermal constraints are used to promote the heat transfer features. A simplified form of the governing m.d.l is treated with the assistance of a shooting technique. The physical effects of different parameters for the problem are presented. The current problem justifies its applications in heat transfer, coating processes, heat exchangers, cooling systems in microelectronics, solar systems, chemical processes, etc.

关键词： Jeffrey nanofluid bioconvection effect variable thermal consequence chemical reaction numerical simulation O357 76Rxx

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Effect of divalent cations(Co^(2+) and Ni^(2+)) on microstructure,physical properties and application of NdFeO_(3)

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Journal of Rare Earths 2025年第1期43卷 89-97,I0004页

作者： m.m.Arman materials Science Lab(1) Physics DepartmentFaculty of ScienceCairo UniversityGiza12613Egypt

The nanocrystalline samples Nd_(1-x)m_(x)FeO_(3)(x=0.0 and 0.1;m:Co^(2+)and Ni^(2+))were prepared using the citrate combustion *** X-ray diffraction(XRd)pattern confirm.d.that the nanoparticles were synthesized in an orthorhombic *** particle size of Nd_(1-x)m_(x)FeO_(3) is in the range of 29-59 *** selected area electron diffraction(SAEd)indicates the samples were prepared in a polycrystalline *** samples Nd_(1-x)m_(x)FeO_(3)(x=0.0 and 0.1;m:Co^(2+)and Ni^(2+))have anti ferromagnetic *** Fe^(3+)spins are aligned antiparallel,forming the antiferromagnetic(AFm)properties,which are affected by many factors such as the bond angle between the Fe^(3+)(Fe^(3+)-O_(2)--Fe^(3+))and the dzyaloshinskii-moriya(d-m)*** doping of Co^(2+)and Ni^(2+)ions in NdFeO_(3) enhances the magnetic properties of the NdFeO_(3).The saturation magnetization(ms)of Nd_(0.90)Co_(0.10)FeO_(3) increases 1.8times more than that of NdFeO_(3).The exchange bias field(HEX)of the Co-doped sample is two times greater than that of NdFeO_(3).The magnetic anisotropy constant(K)of the 10%Co-doped sample increases by 11 factors compared to that of NdFeO_(3).The Tauc plot illustrates that the samples have a direct optical *** divalent cation substitution(Co^(2+)and Ni^(2+))decreases the optical band gap of NdFeO_(3),leading to the recommendation of using the samples Nd_(0.90)Co_(0.10)FeO_(3) and Nd_(0.90)Ni_(0.10)FeO_(3) in photocatalysis of dye degradation from *** removal efficiencies of Cr6+at pH=6 are 88.06%,85.54%,and 85.52%for the samples NdFeO_(3),Nd_(0.90)Co_(0.10)FeO_(3),and Nd_(0.90)Ni_(0.10)FeO_(3),*** Freundlich isotherm m.d. is the best-fit m.d.l for NdFeO_(3) to adsorb Cr6+ions from aqueous solutions.

关键词： Optical properties Nanoparticles magnetic properties Perovskites Removal efficiency Rareearths

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An Efficient multi-Scale m.d.lling Approach for ssdNA motion in Fluid Flow

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Journal of Bionic Engineering 2008年第4期5卷 299-307页

作者： m. Benke E. shapiro d. drikakis Fluid mechanics and Computational Science Group Department of Aerospace Sciences Cranfield University

The paper presents a multi-scale m.d.lling approach for simulating macromolecules in fluid flows. macromolecule transport at low number densities is frequently encountered in biom.d.cal devices, such as separators, detection and analysis systems. Accurate m.d.lling of this process is challenging due to the wide range of physical scales involved. The continuum approach is not valid for low solute concentrations, but the large timescales of the fluid flow make purely molecular simulations prohibitively expensive. A promising multi-scale m.d.lling strategy is provided by the meta-m.d.lling approach considered in this paper. meta-m.d.ls are based on the coupled solution of fluid flow equations and equations of motion for a simplified mechanical m.d.l of macromolecules. The approach enables simulation of individual macromolecules at macroscopic time scales. meta-m.d.ls often rely on particle-corrector algorithms, which impose length constraints on the mechanical m.d.l. Lack of robustness of the particle-corrector algorithm employed can lead to slow convergence and numerical instability. A new FAst Linear COrrector （FALCO） algorithm is introduced in this paper, which significantly improves computational efficiency in comparison with the widely used SHAKE algorithm. Validation of the new particle corrector against a simple analytic solution is perform.d.and improved convergence is demonstrated for ssdNA motion in a lid-driven micro-cavity.

关键词： multi-scale m.d.lling dNA macromolecule transport meta-m.d.lling particle corrector

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HAGEN POISEUILLE FLOW OF A GRANULAR mATERIAL IN A CYLINdER

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Journal of Hydrodynamics 2001年第2期13卷 91-95页

作者： Liu, m.J. Tao, m.d. dept. of mech. and Eng. Sci. Fudan Univ. Shanghai 200433 China

The equations of motion for rapid flow of a granular material were derived and their solutions representing flow driven by a body force along an infinitely-long cylinder were obtained by the numerical method.

关键词： Boundary conditions Cylinders (shapes) Equations of motion Flow of solids Numerical methods

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GRId GENERATION ANd NUmERICAL SImULATION OF 2-d RIVER FLOW

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Journal of Hydrodynamics 2001年第2期13卷 50-54页

作者： Zhao, m.d. Li, Y.T. dept. of River Eng. Wuhan Univ. Wuhan 430072 China

This paper presents new weighting functions in grid generation and new discretizing scheme of momentum equations in numerical simulation of river flow. By using the new weighting functions, the curvilinear grid could be concentrated as desired near the assigned points or lines in physical plane. By using the new discretizing scheme, the difficulties caused by movable boundary and dry riverbed can be overcome. As an application, the flow in the Wuhan Section of Yangtze River is simulated. The computational results are in good agreement with the measured results. The new method is applicable to the numerical simulation of 2-d river flow with irregular region and moveable boundary.

关键词： Computer simulation Flow of fluids mathematical m.d.ls Poisson equation Two dimensional

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The sexually dimorphic expression of glutamate transporters and their implication in pain after spinal cord injury

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Neural Regeneration Research 2025年第11期20卷 3317-3329页

作者： Jennifer m.Colón-mercado Aranza I.Torrado-Tapias Iris K.Salgado Jose m.Santiago Samuel E.Ocasio Rivera dina P.Bracho-Rincon Luis H.Pagan Rivera Jorge d.miranda department of Physiology University of Puerto RicoMedical Sciences CampusSan JuanPRUSA National Institutes of Health National Human Genome Research InstituteBethesdaMDUSA Universidad Central del Caribe School of MedicineBayamónPRUSA University of Puerto Rico Carolina CampusCarolinaPRUSA Institute of Neurobiology San JuanPRUSA

In addition to the loss of motor function,~60% of patients develop pain after spinal cord *** cellular-molecular mechanisms are not well understood,but the data suggests that plasticity within the rostral,epicenter,and caudal penumbra of the injury site initiates a cellularmolecular interplay that acts as a rewiring mechanism leading to central neuropathic *** can lead to the formation of new connections triggering abnormal sensory *** excitatory glutamate transporters are responsible for the reuptake of extracellular glutamate which makes them a critical target to prevent neuronal hyperexcitability and *** previous studies showed a sexually dimorphic therapeutic window for spinal cord injury after treatment with the selective estrogen receptor m.d.lator *** this study,we investigated the anti-allodynic effects of tamoxifen in male and female rats with spinal cord *** hypothesized that tamoxifen exerts anti-allodynic effects by increasing the expression of glutamate transporters,leading to reduced hyperexcitability of the secondary neuron or by decreasing aberrant *** and female rats received a m.d.rate contusion to the thoracic spinal cord followed by subcutaneous slow-release treatment of tamoxifen or matrix pellets as a control(placebo).We used von Frey monofilaments and the“up-down method”to evaluate mechanical *** treatment decreased allodynia only in female rats with spinal cord injury revealing a sexdependent *** expression profile of glutamatergic transporters(excitatory amino acid transporter 1/glutamate aspartate transporter and excitatory amino acid transporter 2/glutamate transporter-1)revealed a sexual dimorphism in the rostral,epicenter,and caudal areas of the spinal cord with a pattern of expression primarily on *** rodents showed a significantly higher level of excitatory amino acid transporter-1 expression while male rodents showed increased

关键词： allodynia central neuropathic pain EAAT-1/GLAST EAAT-2/GLT-1 glutamate transporters selective estrogen receptor m.d.lator sexual dimorphism spinal cord injury trauma

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Hydrogen Storage Capacity of C120 Nanocapsules： density Functional Theory Based Treatments

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Communications in Theoretical Physics 2011年第3期55卷 519-526页

作者： m.d. Ganji Gh. Valizadeh m. Jahan-tigh department of Chemistry Islamic Azad University Ghaemshahr Branch Mazandaran Iran

The adsorption of hydrogen molecule on the external surface of pure 0120 nanocapsule and endohedrallyH2 @C120 complex has been examined using the density functional theory calculations. Several different bonding configu- rations are considered for the hydrogen molecule approaching the outer surface of the considered nanocages. It has been found that the adsorbed H2 molecule bound weakly to the outer surface of the pure C1~0 nanocapsules in agreement with the recent experimental and theoretical results while, it prefers to be adsorbed rather strongly on the side wall of the endohedrally /-/2@C120 complex. The adsorption of a single layer and bi-layer of two tt2 molecules on the most stable states of the considered H2@C120 complex appears to be feasible, although the molecules of the second layer are weakly bound. Furthermore, it is found that the formation of 100% coverage is favorable therm.d.namically, which corresponds to about 20% by weight storage of 1-12 molecules. Thus, surprisingly, we arrive at the prediction that the C120 nanocapsules can be implemented as a novel material for energy storage.

关键词： adsorption encapsulation hydrogen storages carbon nanocapsule ab initio calculations

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应用64层CT对心肌灌注缺损、局部室壁运动及左室功能的综合评估

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国际医学放射学杂志 2008年第5期31卷 401-401页

作者： R.C. Cury K. Nieman m.d. shapiro J.Butler C.H. Nomura m. Ferencik 邱建星（译）唐光健（校） department of Radiology and Cardiac MR-PET-CT Program Massachusetts General Hospital and Harvard Medical School 165 Cambridge St Suite 400 Boston MA 02114 USA. 不详

目的评估64层CT评价心肌灌注缺损（Pd），局部室壁运动（RWm）和左室（Lv）功能的准确性。方法所有心肌梗死（mI）病人签署知情同意书。本研究经机构审查委员会批准并依从HIPAA法案。102例病人（34例近期患急性mI，68例未患mI）接受了... 详细信息

目的评估64层CT评价心肌灌注缺损（Pd），局部室壁运动（RWm）和左室（Lv）功能的准确性。方法所有心肌梗死（mI）病人签署知情同意书。本研究经机构审查委员会批准并依从HIPAA法案。102例病人（34例近期患急性mI，68例未患mI）接受了心脏多层CT检查。分析心脏多层CT影像以评估心肌Pd、RWm异常和LV功能。多层CT获得的LV总体功能及RWm与经胸超声心动图（TTE）对照。Pd由多层CT检出，并评价其与心脏生化指标及SPECT心肌灌注成像的相关性。多层CT诊断急性mI的根据，是有与RWm异常相匹配的Pd并与临床评估对照。结果多层CT获得的总体心功能（r=0．68）和RWm（K=0，79）与TIE相关性良好。

关键词：局部室壁运动心肌梗死临床评估灌注缺损左室功能 64层CT 多层CT检查心脏生化指标

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Notes on the Landmark development of CBR in China

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中国康复医学杂志 2009年第1期24卷 3-4页

作者： dahong Zhuo, m.d. Faculty of Rehabilitation m.d.cine Sun Yat-Sen University WHO Collaborating Centre for Rehabilitation

Community-based rehabilitation has a history of 22 years in *** spite of the preliminary achievement and experiences obtained by the pioneering and trial projects,it was not until the beginning of the new century that CBR in China experienced a landmark *** is characterized by a number of favorable policy by the government for CBR;the mechanism facilitating primary health care with CBR,a new work-force system of CBR reorganized with better motivation and efficiency,99 demonstration projects of CBR bringing about benchmark promotion effect and the active involvement in CBR by social resources agents.

关键词： CBR 中国医疗卫生行业发展历史

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PROPERTIES, WELdABILITY ANd APPLICATIONS OF AdVANCEd WROUGHT SUPERALLOYS FOR GAS TURBINE ENGINES

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Acta metallurgica Sinica(English Letters) 2005年第1期18卷 1-14页

作者： d.L. Klarstrom V.R. Ishwar m.d. Rowe Haynes International Inc. Kokomo Indiana IN 46904-9013 USAHaynes International Inc. Kokomo Indiana IN 46904-9013 USAHaynes International Inc. Kokomo Indiana IN 46904-9013 USA

Alloy selection and alloy design both require consideration of an array of material attributes, including in-service properties, weldability and fabricability. Critical properties of advanced wrought superalloys for gas turbine applications include high temperature strength, thermal stability, oxidation resistance and fatigue resistance. In this paper, the properties of twelve wrought solid-solution-strengthened and six age-hardenable superalloys are compared. Weldability is an important attribute and can be a major limiting factor in the use of certain alloys. Weldability test methods are discussed and the resistance of alloys to solidification cracking and strain-age cracking is compared. The use of weldability testing in the development of m.d.rn wrought su-peralloys is discussed with several examples cited. Finally, alloy selection for gas turbine components is outlined, taking into account both alloy properties and fabricability.

关键词： wrought superalloys mechanical properties strain-age cracking of weldments selection and application of wrought superalloys

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