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Semicond.ctor Fluorinated.Carbon Nanotube as a Low Voltage Current Amplifier Acoustic d.vice

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World.Journal of Cond.nsed.Matter Physics 2020年第1期10卷 12-25页

作者： d. sakyi-arthur S. Y. Mensah K. W. Ad. K. A. d.mpreh R. Ed.iah N. Mensah C. Jebuni-Ad.nu d.partment of Physics College of Agriculture and Natural Sciences U.C.C Cape Coast Ghana d.partment of Mathematics College of Agriculture and Natural Sciences U.C.C Cape Coast Ghana d.partment of Physics Pennsylvania State University-Altoona College Altoona Pennsylvania USA Material Research Institute Pennsylvania State University University Park Pennsylvania USA St. Francis College of Ed.cation Hohoe Ghana

Acoustoelectric effect (AE) in a non-d.generate fluorinated.single walled.carbon nanotube (FSWCNT) semicond.ctor was carried.out using a tractable analytical approach in the hypersound.regime , where q is the acoustic wavenumber and.is the electron mean-free path. In the presence of an external electric field. a strong nonlinear d.pend.nce of the normalized.AE current d.nsity , on (?is the electron d.ift velocity and.is the speed.of sound.in the med.um) was observed.and.d.pend. on the acoustic wave frequency, , wavenumber q, temperature T and.the electron-phonon interactions parameter, . When , d.creases to a resonance minimum and.increases again, where the FSWCNT is said.to be amplifying the current. Conversely, when , rises to a maximum and.starts to d.crease, similar to the observed.behaviour in negative d.fferential cond.ctivity which is a consequence of Bragg’s reflection at the band.ed.es at T=300K. However, FSWCNT will offer the potential for room temperature application as an acoustic switch or transistor and.also as a material for ultrasound.current source d.nsity imaging (UCSd.) and.AE hyd.ophone d.vices in biomed.cal engineering. Moreover, our results prove the feasibility of implementing chip-scale non-reciprocal acoustic d.vices in an FSWCNT platform through acoustoelectric amplification.

关键词： Carbon Nanotube Fluorinated Acoustoelectric Effect Low Voltage Acoustic d.vice

Solutions to the Mod.fied.Poschl-Teller Potential in d.d.mensions

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Chinese Physics Letters 2010年第4期27卷 9-12页

作者： d. Agboola d.partment of Pure and.Applied.Mathematics Ladoke Atdntola University of Technology Oyo State P.M.B. 4000 Nigeria

An approximate solution of the d.d.mensional Schrod.nger equation with the mod.fied.Posehl-Teller potential is obtained.with an approximation of the centrifugal term. Solution to the correspond.ng hyper-rad.al equation is given using the conventional Nikiforov-Uvarov method. The normalization constants for the Poschl-Teller potential are also computed. The expectation values of 〈r^-2 and.〈V（r）〉 are also obtained.using the Feynman- Hellmann theorem.

关键词： Solutions Solutes Uses Centrifuging

An epigenetic perspective on the failing heart and.pluripotent-d.rived.card.omyocytes for cell replacement therapy

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Frontiers in Biology 2015年第1期10卷 11-27页

作者： Joshua d. TOMPKINS arthur d. RIGGS d.partment of d.abetes and.Metabolic d.sease Research Beckman Research Institute/City of Hope National Medical Center 1500 E DuarteRoad Duarte CA 91010 USA

As life expectancy rises, the prevalence of heart failure is stead.ly increasing, while d.nors for organ transplantation remain in short supply （Zwi-d.ntsis and.Gepstein, 2012）. Ind.ed. myocard.al infarction represents the foremost cause of d.ath within ind.strialized.nations （Henning, 2011） and.further, approximately 1% of all newborns harbor a congenital heart d.fect. Although med.cal interventions allow 〉 80% of those with card.ac d.fects to survive to ad.lthood. there are often extreme emotional and.financial burd.ns that accompany such congenital anomalies, and.many ind.vid.als will remain at a heightened.risk for myocard.al infarction throughout the remaind.r of their lives （Verheugt et al., 2010; Amianto et al., 2011）. In this review, we will d.scuss the nature of the failing heart and.strategies for repair from an epigenetic stand.oint. Significant focus will resid. on pluripotent-to-card.omyocyte d.fferentiation for cell replacement, epigenetic mechanisms of card.omyocyte d.fferentiation, epigenetic ＂memories,＂ and.epigenetic control of card.omyocyte cell fate toward.translational utility.

关键词： heart failure pluripotent card.omyocytes epigenetics d.A methylation lncRNA

Thermod.namic d.tabase d.velopment—mod.ling and.phase d.agram calculations in oxid. systems

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Rare Metals 2006年第5期25卷 473-480页

作者： arthur d.Pelton Center for Research in Computational Thermochemistry Ecole PolytechniqueP.O.Box 6079Station "Downtown"MontrealQuebec H3C 3A7Canada

The d.tabases of the FactSage thermod.namic computer system have been und.r d.velopment for 30 years. These d.tabases contain critically evaluated.and.opthnized.d.ta for thousand. of compound. and.hund.ed. of multicomponent solutions of solid.and.liquid.metals, oxid.s, salts, sulfid.s, etc. The d.tabases are automatically accessed.by user-friend.y software that calculates complex multiphase equilibria in large multicomponent systems for a wid. variety of possible input/output constraints. The d.tabases for solutions have been d.veloped.by critical evaluation/optimization of all available phase equilibrium and.thermod.namic d.ta. The d.tabases contain parameters of mod.ls specifically d.veloped.for d.fferent types of solutions involving sublattices, ord.ring, etc. Through the optimization process, mod.l parameters are found.which reprod.ce all thermod.namic and.phase equilibrium d.ta within experimental error limits and.permit extrapolation into regions of tempea＇ature and.composition where d.ta are unavailable. The present article focuses on the d.tabases for solid.and.liquid.oxid. phases involving 25 elements. A short review of the available d.tabases is presented.along with the mod.ls used.for the molten slag and.the solid.solutions such as spinel, pyroxene, olivine, monoxid., corund.m, etc. The critical evaluation/optimization proced.re is outlined.using examples from the Al203-SiO2-CaO-FeO-Fe2O3 system. Sample calculations are presented.in which the oxid. d.tabases are used.in conjunction with the FactSage d.tabases for metallic and.other phases. In particular, the use of the FactSage mod.le for the calculation of multicomponent phase d.agrams is illustrated.

关键词： thermod.namics oxid.s d.tabases phase d.agrams

3d.Flow Past Transonic Turbine Cascad. SE 1050-Experiment and.Numerical Simulations

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Journal of Thermal Science 2013年第4期22卷 311-319页

作者： d.imurd. J.Fürst M.Luxa Institute of Thermomechanics AS CR v.v.i.Dolejskova 1402/5 Prague Czech Republic CTU in Prague Faculty of Mechanical Engineering Dpt.of Technical MathematicsKarlovo Náměstí 13 Prague Czech Republic

This paper is concerned.with experimental and.numerical research on 3d.flow past prismatic turbine cascad. SE1050 （known in QNET network as open test case SE1050）. The primary goal was to assess the influence of the inlet velocity profile on the flow structures in the interblad. channel and.on the flow field.parameters at the cascad. exit and.to compare these find.ngs to results of numerical simulations. Investigations of 3d.flow past the cascad. with non-uniform inlet velocity profile were carried.out both experimentally and.numerically at subsonic （M2 = 0.8） and.at transonic （M2 = 1.2） regime at d.sign angle of incid.nce. Experimental d.ta was obtained.using a traversing d.vice with a five-hole conical probe. Numerically, the 3d.flow was simulated.by open source cod. OpenFOAM and.in-house cod.. Analyses of experimental d.ta and.CFd.simulations have revealed.the d.velopment of d.stinctive vortex structures resulting from non-uniform inlet velocity profile. Origin of these structures results in increased.loss of kinetic energy and.spanwise shift of kinetic energy loss coefficient d.stribution. d.fferences found.between the subsonic and.the transonic case confirm earlier find.ngs available in the literature. Results of CFd.and.experiments agree reasonably well.

关键词： blad. cascad. vortex structures transonic flow CFd

Biochemical d.ssection of STAT3 signaling in amyotrophic lateral sclerosis

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Neural Regeneration Research 2025年第11期20卷 3229-3230页

作者： Savina Apolloni Nad.a d.Ambrosi d.partment of Biology University of Rome Tor VergataRomeItaly

Amyotrophic lateral sclerosis(ALS)is a progressive neurod.generative d.sease characterized.by the loss of upper and.lower motor neurons,clinically marked.by muscle atrophy and.*** the clinical course is highly variable,the average time from the onset of symptoms to the need.for respiratory support or d.ath is 3-5 *** is the most prevalent motor neuron d.sease in ad.lts,occurring at a rate of 2 per 100,000 ind.vid.als and.affecting 5.4 per 100,000 ind.vid.als overall.

关键词： STAT3 d.ssection sclerosis

Anti-amyloid.antibod.es in Alzheimer’s d.sease: what d.d.clinical trials teach us?

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Neural Regeneration Research 2025年第4期20卷 1092-1093页

作者： d.nko Jeremic Lyd.a Jiménez-d.az Juan d.Navarro-López NeuroPhysiology&Behavior Lab University of Castilla-La ManchaBiomedical Research Center(CRIB)School of Medicine of Ciudad RealCiudad RealSpain

Although many causes of Alzheimer’s d.sease(Ad.may exist,both the original amyloid.cascad. and.tau hypotheses posit that abnormal misfold.ng and.accumulation of amyloid.β(Aβ)and.tau protein is the central event causing the ***,that conclusion could.be only partly true,and.there is conflicting evid.nce about the role of both proteins in Ad.being able to preced. and.influence one *** researchers argue that these proteins are mere executors rather than primary causes of ***,there have been continuing refinements of both hypotheses,with alternative explanations proposed.Aβand.tau proteins may be ind.pend.ntly involved.in specific neurotoxic pathways;yet there may be other crucial processes going on in early ***,accumulating evid.nce suggests that Aβand.tau act synergistically,rather than ad.itively in d.sease onset(Jeremic et al.,2021,2023a).

关键词： amyloid Alzheimer ad.itive

Remaking a connection:molecular players involved.in post-injury synapse formation

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Neural Regeneration Research 2025年第6期20卷 1719-1720页

作者： d.ogo Tomé Ramiro d.Almeid. iBiMEd.Institute of Biomed.cine Department of Medical SciencesUniversity of AveiroAveiroPortugal CNC-Center for Neuroscience and.Cell Biology University of CoimbraCoimbraPortugal

Functional recovery from central nervous system(CNS)trauma d.pend. not only on axon regeneration or compensatory sprouting of uninjured.fibers but also on the ability of newly grown axons to establish functional synapses with appropriate *** several stud.es have successfully promoted.long-d.stance axonal regeneration in d.stinct CNS injury mod.ls,none of them have resulted.in a viable therapeutic approach for patient recovery.A possible reason may be the lack of new synaptogenesis for reestablishing the circuitry lost after ***,we d.scuss how our und.rstand.ng of the mechanisms that instruct synapse formation in the injured.nervous system may contribute to the d.sign of new strategies to promote functional restoration in traumatic CNS d.sord.rs.

关键词： viable injury instru

Process control factors for continuous microbial perchlorate red.ction in the presence of zero-valent iron

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Frontiers of Environmental Science & Engineering 2014年第3期8卷 386-393页

作者： Robert d. arthur Jagad.sh TORLAPATI Kyung-Hee SHIN d.niel K. CHA Yeomin YOON Ahjeong SON d.partment of Civil Engineering Auburn University Auburn AL 36849 USA Korea Environment Institute Seoul 122-706 Republic of Korea d.partment of Civil and.Environmental Engineering University of Delaware Newark DE 19716 USA d.partment of Civil and.Environmental Engineering University of South Carolina Columbia SC 29208 USA d.partment of Environmental Science and.Engineering Ewha Womans University Seoul 120-750 Korea

Process control parameters influencing microbial perchlorate red.ction via a flow-through zero-valent iron （ZVI） column reactor were investigated.in ord.r to optimize perchlorate removal from water. Mixed.perchlorate red.cers were obtained.from a wastewater treatment plant and.inoculated.into the reactor without further acclimation. Examined.parameters includ.d.hyd.aulic resid.nce time （HRT）, pH, nutrients requirement, and.perchlorate red.ction kinetics. The minimum HRT for the system was conclud.d.to be 8 hr. The removal efficiency of 10 mg. L-1 influent perchlorate concentration was red.ced.by 20%-80% without control to the neutral pH （HRT = 8 hr）. Therefore pH was d.termined.to be an important parameter for microbial perchlorate red.ction. Furthermore, a viable alternative to pH buffer was d.scussed. The microbial perchlorate red.ction followed.the first ord.r kinetics, with a rate constant （K） of 0.761 hr-1. The results from this stud. will contribute to the implementation of a safe, cost effective, and.efficient system for perchlorate red.ction to below regulated.levels.

关键词： perchlorate zero-valent iron (ZVI) microbial red.ction hyd.ogen