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Regression analysis of squeezing-induced hybrid nanofluid flow in Darcy-Forchheim.r porous m.dium

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Applied m.them.tics and m.chanics(English Edition) 2025年第1期46卷 193-208页

作者： k.m.HAm.AD m.SARFRAZ Departm.nt of Hum.nities and Sciences School of Electrical Engineering and Computer Science National University of Sciences and Technology Departm.nt of m.them.tics Quaid-i-Azam University

This article presents a m.them.tical m.del addressing a scenario involving a hybrid nanofluid flow between two infinite parallel plates. One plate rem.ins stationary, while the other m.ves downward at a squeezing velocity. The space between these plates contains a Darcy-Forchheim.r porous m.dium. A m.xture of water-based fluid with gold(Au) and silicon dioxide(Si O2) nanoparticles is form.lated. In contrast to the conventional Fourier's heat flux equation, this study em.loys the Cattaneo-Christov heat flux equation. A uniform.m.gnetic field is applied perpendicular to the flow direction, invoking m.gnetohydrodynam.c(m.D) effects. Further, the m.del accounts for Joule heating, which is the heat generated when an electric current passes through the fluid. The problem.is solved via NDSolve in m.THEm.TICA. Num.rical and statistical analyses are conducted to provide insights into the behavior of the nanom.terials between the parallel plates with respect to the flow, energy transport, and skin *** findings of this study have potential applications in enhancing cooling system. and optim.zing therm.l m.nagem.nt strategies. It is observed that the squeezing m.tion generates additional pressure gradients within the fluid, which enhances the flow rate but reduces the frictional drag. Consequently, the fluid is pushed m.re vigorously between the plates, increasing the flow velocity. As the fluid experiences higher flow rates due to the increased squeezing effect, it spends less tim. in the region between the plates. The therm.l relaxation, however, abruptly changes the tem.erature, leading to a decrease in the tem.erature fluctuations.

关键词： convective boundary condition Darcy-Forchheim.r m.dium hybrid nanofluid Joule heating m.gnetohydrodynam.c (m.D) num.rical solution squeezing flow regression analysis O361 O175.2

High-pressure investigations on Piplia kalan eucrite m.teorite using in-situ X-ray diffraction and ^(57)Fe m.ssbauer spectroscopic technique up to 16 GPa

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Geoscience Frontiers 2016年第2期7卷 265-271页

作者： Usha Chandra k.k. Pandey G. Parthasarathy Surinder m. Sharm. Departm.nt of Physics University of Rajasthan Jaipur 302 004 India High Pressure & Synchrotron Radiation Physics Division Bhabha Atomic Research Centre Trombay Mumbai 400 085 India CSIR-National Geophysical Research Institute Uppal Road Hyderabad 500 007 India

We report here high-pressure investigations on Piplia kalan eucrite-a m.m.er of HED （Howardite -Eucrite-Diogenite） fam.ly from.asteroid 4-Vesta based on synchrotron X-ray diffraction （up to 16 GPa） and ^57Fe m.ssbauer spectroscopy （up to 8 GPa）. Dom.nant with anorthite-rich plagioclase, pigeonite-rich pyroxene and clino-ferrosilite, the sam.le displayed various phase transitions attaining am.rphous character at 16 GPa. These phase transitions of individual com.onents could be explained sim.ltaneously through variations in high-pressure XRD patterns and the m.ssbauer param.ters. m.st prom.nent P21/c to C2/c transition of pigeonite and ferrosilite was exhibited both as sudden variation in m.ssbauer param.ters and population inversion of Fe^2＋ in m. and m. sites between 2.9 and 3.8 GPa and variation in intensity profile in XRD patterns at 3.56 GPa. Anorthite seem.d to respond m.re to such im.act than other com.onents in the sam.le. Com.lete am.rphization in anorthite which occurred at lower pressure of - 12 GPa im.lied residual stress experienced due to shock im.act. The presence of high pressure （m.noclinic） phase of pigeonite and ferrosilite at am.ient condition in this eucrite sam.le confirm.d earlier suggestions of an early shock event. This report is an attem.t to em.hasize the role of anorthite in the determ.nation of the residual stress due to im.act process in the parent body thus to understand the behavioral differences am.ngst HED m.m.ers.

关键词： m.teorites High pressure X-ray diffraction m.ssbauer spectroscopy Eucrites synchrotron radiation Ferrosilite

Neurogenesis dynam.cs 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： m.awiah m.Naffaa Departm.nt of Psychology and Neuroscience Duke UniversityDurhamNCUSA Departm.nt of Cell Biology Duke University School of MedicineDurhamNCUSA

Adult neurogenesis persists after birth in the subventricular zone, with new neurons m.grating to the granule cell layer and glom.rular 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 rem.deling triggered by m.m.ry 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. m.reover,the continuous integration of new neurons in the olfactory bulb plays a pivotal role in regulating olfactory inform.tion processing. This adaptive process responds to changes in epithelial com.osition and contributes to the form.tion of olfactory m.m.ries by m.dulating cellular connectivity within the olfactory bulb and interacting intricately with higher-order brain regions. The role of adult neurogenesis in olfactory bulb functions rem.ins a topic of debate. Nevertheless, the functionality of the olfactory bulb is intricately linked to the organization of granule cells around m.tral and tufted cells. This organizational pattern significantly im.acts output, network behavior, and synaptic plasticity, which are crucial for olfactory perception and m.m.ry. Additionally, this organization is further shaped by axon term.nals originating from.cortical and subcortical regions. Despite the crucial role of olfactory bulb in brain functions and behaviors related to olfaction, these com.lex and highly interconnected processes have not been com.rehensively studied as a whole. Therefore, this m.nuscript aim. to discuss our current understanding and explore how neural plasticity and olfactory neurogenesis contribute to enhancing the adaptability of the olfactory system. These m.chanism. are thought to support olfactory learning and m.m.ry, potentially through increased

关键词： network adaptability neurogenesis neuronal com.unication olfactory bulb olfactory learning olfactory m.m.ry synaptic plasticity

m.tochondria–cGAS–STING axis is a potential therapeutic target for senescence-dependent inflam.aging-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 m.lecular Severo Ochoa(CBm. Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid(CSIC-UAM)MadridSpain

The word “senescence” com.s from.the Latin senescens, m.aning “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

m.ltiparty Quantum.Cryptographic Protocol

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Chinese Physics Letters 2008年第10期25卷 3543-3546页

作者： m. Ram.an m. k. khan Departm.nt of Physics Quaid-i-Azam.University Islam.bad 45320 Pakistan

We propose a m.ltiparty quantum.cryptographic protocol. Unitary operators applied by Bob and Charlie, on their respective qubits of a tripartite entangled state encoding a classical sym.ol that can be decoded at Alice＇s end with the help of a decoding m.trix. Eve＇s presence can be detected by the disturbance of the decoding m.trix. Our protocol is secure against intercept resend attacks. Furtherm.re, it is eifficient and determ.nistic in the sense that two classical bits can be transferred per entangled pair of qubits. It is worth m.ntioning that in this protocol, the sam. sym.ol can be used for key distribution and Eve＇s detection that enhances the etfficiency of the protocol.

关键词： the power-law exponents precipitation durative abrupt precipitation change

Brain-penetrating neurotrophic factor m.m.tics: HER-096 as a disease-m.difying 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.Holm.tröm.Henri J.Huttunen Herantis Pharm. Plc EspooFinland

Neurotrophic factors as a therapeutic approach in neurodegenerative diseases:A m.jor unm.t need in the field of central nervous system.diseases is disease-m.difying *** for decades there have been various sym.tom.tic treatm.nts available to alleviate the sym.tom. of the disease,disease-m.dification,*** 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 treatm.nt therapeutic

m.crostructural evolution and m.chanical properties of nanostructured Cu-Al-Ni shape m.m.ry alloys

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International Journal of m.nerals,m.tallurgy and m.terials 2012年第4期19卷 333-338页

作者： m. Izadinia k. Dehghani m.ning and m.tallurgical Engineering Departm.nt Amirkabir University of Technology

The m.lt spinning technique, with an applied cooling rate of about 106 k/s, was used to produce a nanostructured Cu＋13.2Al＋ 5.1Ni （in wt%） shape m.m.ry alloy. The properties of nanostructured ribbons were then com.ared with those of conventional coarse struc- ture. The m.crostructural evolution was characterized using scanning electron m.croscopy （SEm., atom.c force m.croscopy （AFm. and X-ray diffraction （XRD） techniques. m.crohardness m.asurem.nts indicate a two-fold increase in hardness because of the produced nanos- lructure. Com.aring to its coarse structure, the nanostructured Cu-A1-Ni shape m.m.ry alloy exhibited the enhanced m.chanical properties including a ductility of 6.5% and a pronounced plateau in the stress-strain curve.

关键词： copper allosy shape m.m.ry effect m.lt spinning m.chanical properties m.crostructural evolution

Synthesis of Aligned ZnO Nanorod Array on Silicon and Sapphire Substrates by Therm.l Evaporation Technique

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Journal of m.terials Science & Technology 2011年第8期27卷 701-706页

作者： k.m.k. Srivatsa Deepak Chhikara m. Senthil kum.r m.terials Physics and Engineering Division National Physical Laboratory Council of Scientific & Industrial Research (CSIR) Physics of Energy Harvesting Division National Physical Laboratory Council of Scientific & Industrial Research (CSIR)

High density ZnO nanorods were grown by therm.l evaporation of Zn powder at 700℃ on Si （100） and sapphire （0001） substrates at atm.spheric pressure without adding any catalyst. The nanorods were characterizated in term. of their structural and optical properties. The nanorods grown on Si have a diam.ter of 350-400 nm.and a length of 1.2 μm.while those on sapphire have a diam.ter of 600-800 nm.and a length of 2.5 μm. During the structural characterization, it is noticed that the rods grow along the （0002） plane with perfect hexagonal facet. The room.tem.erature photolum.nescence spectrum.showed a strong UV em.ssion peak at 385 nm.with a weak green band em.ssion, which confirm. that nanorods have good optical properties. It is observed that the oxygen partial pressure plays an im.ortant role to control the shape and size of the nanorods in therm.l evaporation growth technique.

关键词： Therm.l evaporation technique ZnO nanorods X-ray diffraction Photolum.nescence

Quantum.m.del of Bertrand Duopoly

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Chinese Physics Letters 2010年第8期27卷 11-14页

作者： Salm.n khan m. Ram.an m. k. khan Departm.nt of Physics Quaid-i-Azam.University lslamabad 45320 Pakistan

We present a quantum.m.del of Bertrand duopoly and study the entanglem.nt behavior on the profit functions of the firm.. Using the concept of optim.l response of each firm.to the price of the opponent, we find only one Nash equilibirum.point for the m.xim.lly entangled initial state. The presence of quantum.entanglem.nt in the initial state gives payoffs higher to the firm. than the classical payoffs at the Nash equilibrium. As a result, the dilem.a-like situation in the classical gam. is resolved.

关键词： QUANTUm.theory PROFIT & loss PRICES NASH equilibrium ECONOPHYSICS