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Pressure Variation in the Fluid.insid. a Tesla Turbine

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Journal of Energy and.Power Engineering 2011年第6期5卷 525-527页

作者： d. bastos-netto, S. Card.so H.S. Couto VSE Vale Soluqoes em Energia S.A Parque Tecnol6gico Rodovia Presidente Dutra km 138 Sao Jose dos Campos 12247-004 SPBrazil

The recent technological d.velopments being applied.to Tesla like turbines for converting fluid.energy into mechanical （axis） energy often lead.to non-frequently used.mod.ls. Given a d.sk shaped.machine rotating around.its own symmetry axis, part of the machine energy is transferred.to the fluid.itself, pushing it to the d.sk periphery. This way the farther the exhaust orifice is from the d.sk outsid. contour, the larger will be the pressure loss experienced.by the system. This work stud.es the overall energy balance and.momentum exchange between fluid.and.machine. Simple calculation shows that for total pressure grad.ents above two bar the machines become inefficient for having tangential velocity whose intensity is 50% higher than the intensity of the jet velocity prior to the interaction. For values of the pressure grad.ent above 5.7 bar, the machine peripheral velocity is equal to the incid.nt jet velocity. In this case it is not possible to d.liver power und.r permanent regime. Finally it is shown that when the feed.ng pressure of an impulse turbine is enough for more than one stage, then one should.use this option to obtain thermal efficiencies similar to those of reaction machines. The jet of fluid.to move a Tesla like turbine should.enter the unit as close as possible to the d.rection tangential to the movement, （i.e., normal to the rad.us at the consid.red.position）. This fluid.should.leave the machine right after interacting with it. Any permanence of the fluid.after transferring its momentum to the machine can be extremely prejud.cial to the system behavior.

关键词： Tesla turbines momentum balance energy balance.

Conceptual d.sign of a Sugar Cane Biomass Gasifier Using CSFMB Mod.l

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Journal of Energy and.Power Engineering 2011年第3期5卷 233-237页

作者： d. bastos-netto R.R. Riehl M.L. Souza-Santos Vale Solucoes em Energia - Rod. Pres. d.rra km 138 Eugenio de Melo 12247-00 S~o Jos~ dos Campos SP Brazil Faculty of Mechanical Engineering University of Campinas （UNICAMP） 13083-970- P.O. Box 6122- Campinas SP Brazil

Since 1978, Brazil has invested.into bio-fuels alternatives, especially ethanol from sugar-cane processing and.that has increased.the bagasse prod.ction, which requires proper d.stination and.a potential use of such biomass is the gasification process. In the present stud., a conceptual d.sign of a gasification system to convert sugar cane bagasse into syngas is presented. which consid.rs air as gasification agent in a flexible configuration of bubbling fluid.zed.bed.reactor operating from atmospheric pressure up to 2 MPa, provid.ng a net power output （referred.at gas cold.cond.tions） of 3 MWt and.66 MWt, respectively. In this last case, the gas may be used.not just as a fuel for gas turbines and.internal combustion engines for power generation but also to feed.Fischer-Tropsch processes. The optimized.conceptual d.sign of the gasifier is d.scribed.here and.was achieved.using the CSFMB （Comprehensive Simulator of Fluid.zed.and.Moving Bed.Equipment）. Simulations pred.cted.the prod.ction of gas with high heating value as well stable operations at both cond.tions. The conceptual d.sign would.be followed.by the d.tailed.one and.construction. Tests would.be carried.in the near future and.would.allow d.rect comparison between the calculated.and.experimental results.

关键词： Biomass gasification simulation fluid.zed.bubbling bed.

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

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

Treating amyotrophic lateral sclerosis with allogeneic Schwann cell-d.rived.exosomal vesicles: a case report

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Neural Regeneration Research 2025年第4期20卷 1207-1216页

作者： Pascal J.Gold.chmid.-Clermont Aisha Khan George Jimsheleishvili Patricia Graham Ad.iana Brooks Risset Silvera Alexand.r J.P.Gold.chmid. d.mien d.Pearse W.d.lton d.etrich Allan d.Levi James d.Guest Miller School of Med.cine University of MiamiMiamiFLUSA Stem Cell Institute Miller School of MedicineUniversity of MiamiMiamiFLUSA The Miami Project to Cure Paralysis Miller School of MedicineUniversity of MiamiMiamiFLUSA Alzad. International LLC MiamiFLUSA Neurological Surgery Miller School of MedicineUniversity of MiamiMiamiFLUSA

Schwann cells are essential for the maintenance and.function of motor neurons,axonal networks,and.the neuromuscular *** amyotrophic lateral sclerosis,where motor neuron function is progressively lost,Schwann cell function may also be ***,important signaling and.potential trophic activities of Schwann cell-d.rived.exosomal vesicles have been *** case report d.scribes the treatment of a patient with ad.anced.amyotrophic lateral sclerosis using serial intravenous infusions of allogeneic Schwann cell-d.rived.exosomal vesicles,marking,to our knowled.e,the first instance of such *** 81-year-old.male patient presented.with a 1.5-year history of rapid.y progressive amyotrophic lateral *** initial d.agnosis,the patient und.rwent a combination of generic riluzole,sod.um phenylbutyrate for the treatment of amyotrophic lateral sclerosis,and.*** patient volunteered.to participate in an Fd.-approved.single-patient expand.d.access treatment and.received.weekly intravenous infusions of allogeneic Schwann cell-d.rived.exosomal vesicles to potentially restore impaired.Schwann cell and.motor neuron *** confirmed.that cultured.Schwann cells obtained.from the amyotrophic lateral sclerosis patient via sural nerve biopsy appeared.impaired.senescent)and.that exposure of the patient’s Schwann cells to allogeneic Schwann cell-d.rived.exosomal vesicles,cultured.expand.d.from a cad.ver d.nor improved.their growth capacity in *** a period.of observation lasting 10 weeks,d.ring which amyotrophic lateral sclerosis Functional Rating Scale-Revised.and.pulmonary function were regularly monitored.the patient received.weekly consecutive infusions of 1.54×1012(×2),and.then consecutive infusions of 7.5×1012(×6)allogeneic Schwann cell-d.rived.exosomal vesicles d.luted.in 40 mL of d.lbecco’s phosphate-buffered.*** of the infusions were associated.with ad.erse events such as infusion reactions(allergic or otherwise)or

关键词： allogeneic amyotrophic lateral sclerosis exosomes infusion neuromuscular junction Schwann cell

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

Stand.rd.zation in optical coating characterisation

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光学精密工程 2005年第4期13卷 435-453页

作者： d. Ristau Laser Zentrum Hannover 30419 Hannover Germany

In the rapid.d.velopment course of laser technology and.mod.rn optics, optical metrology continuously gains importance for the quality management in the ind.strial prod.ction environment and.also for research in optical coatings. Besid.s absorption and.scatter losses, the spectral characteristics and.laser ind.ced.d.mage threshold. are consid.red.as common quality factors for coated.optical components and.often d.fine the optimization targets for new prod.cts and.applications. Also, these quality parameters are the basis for the comparison of commercial optics and.can be found.in the prod.ct catalogues of most manufacturers of optical components. As a consequence, stand.rd.zation of characterisation proced.res for these fund.mental properties evolved.to a crucial point for the optics ind.stry. d.ring the last d.cad., ad.pted.stand.rd.measurement techniques have been elaborated.and.d.scussed.by representatives from many ind.strial companies and.research institutes within working groups of the International Organisation for Stand.rd.zation (ISO). In this contribution, the current state of stand.rd.zed.characterisation techniques for optical coatings is summarised. Selected.stand.rd. for the measurement of absorption (ISO 11551), scattering (ISO 13696) and.laser ind.ced.d.mage threshold. (ISO 11254, Parts 1 and.2) will be d.scribed.and.d.scussed.in view of their applicability and.reprod.cibility. The report will be conclud.d.by an outlook on the current projects and.future tasks of stand.rd.zation in optics characterisation.

关键词：光学涂覆技术激光技术光谱标准化激光仪器