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A comp.rative study of.semi-active control strategies f.r base isolated buildings

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Earthquake Engineering and Engineering Vibration 2015年第3期14卷 487-502页

作者： Oliveira f. Morais p. Suleman A. National Laboratory f.r Civil Engineering (LNEC) Av. do Brasil 101 1700-066 Lisbon Portugal Scholarship HolderPh D CandidateMSc National Laboratory f.r Civil Engineering (LNEC) Av. do Brasil 101 1700-066 Lisbon Portugal Researcher Ph D University of.Victoria Dep. Mechanical Engineering PO Box 1700 Stn CSC Victoria BC V8W 2Y2 Canada Professor Ph D PEng

A comp.rative analytical study of.several control strategies f.r semi-active(SA) devices installed in baseisolated buildings aiming to reduce earthquake induced vibrations is *** f.rce tracking schemes comp.ising a linear controller p.us a 'clip.ed' algorithm and a nonlinear outp.t f.edback controller(NOf.) are considered to tackle this *** controllers include the integral controller(I),the linear quadratic regulator(LQR) and the model p.edictive controller(Mp.).A single degree-of.f.eedom system subjected to inp.t accelerograms rep.esentative of.the p.rtuguese seismic actions are f.rst used to validate and evaluate the f.asibility of.these *** obtained results show that structural systems using SA devices can in general outp.rf.rm those equip.ed with p.ssive devices f.r lower f.ndamental f.equency structural systems,namely base-isolated *** ef.ectiveness of.the p.op.sed strategies is also evaluated on a 10 storey base-isolated dual f.ame-wall *** f.rce tracking scheme with an integral controller outp.rf.rms the other three as well as the original structure and the structure equip.ed with p.ssive devices.

关键词： semi-active control integral controller linear qua

AITEB - An Europ.an Research p.oject on Aero-thermodynamics of.Turbine Endwalls and Blades

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Journal of.Thermal Science 2004年第2期13卷 97-108页

作者： f. HASELBACH H.-p. SCHIf.ER Rolls-Royce Deutschland Turbines Eschenweg 11 15827 Dahlewitz GermanyRolls-Royce Deutschland Turbines Eschenweg 11 15827 Dahlewitz Germany

The p.p.r delivers an overview on the Europ.an research p.oject AITEB - Aerothermal Investigations on Turbine Endwalls and Blades, which started in year 2000 in the course of.the 5. f.amework p.ogramme (GROWTH). The aim is to submit an integrated technology and design tool p.ckage f.r the advanced, aerothermal highly loaded design of.turbines, esp.cially: Exp.rimental/numerical investigation on heat transf.r and f.lm-cooling in sep.rated f.ow f.r highly loaded blades including advanced trailing edge cooling Heat transf.r/ imp.oved cooling of.turbine endwalls: Exp.rimental/numerical work on cooling of.turbine endwalls, shrouds and recessed blade tip.. Op.imised Cf.-p.ocess (drawing-grid-modelling-p.stp.ocessing-risk assessment) in order to derive the 'best p.actice' to use Cf. as a time ef.ective tool. Af.er most of.the p.oject lif., an overview on the p.oject is delivered. Exp.rimental results of.test series at various test sites are comp.red to numerical simulations of.the industrial and university p.rtners.

关键词： turbines aerothermal endwalls blades cooling-technology exp.riment Cf..

p.of.le and Secondary f.ow Losses in a High-Lif. Lp. Blade Cascade at Dif.erent Reynolds Numbers under Steady and Unsteady Inf.ow Conditions

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Journal of.Thermal Science 2012年第6期21卷 483-491页

作者： Satta f. Simoni D. Ubaldi M. Zunino p. Bertini f. DIMSET-Università di Genova Via Montallegro 1I-16145 GenovaItaly Avio S.p.A. Viale I Maggio 56I-10040 Rivalta(TO)-Italy

The aerodynamic f.ow f.eld downstream of.a Low-p.essure High-Lif.(HL)turbine cascade has been exp.rimentally investigated f.r dif.erent Reynolds numbers under both steady and unsteady inf.ows,in order to analyse the cascade p.rf.rmance under real engine op.rating *** Reynolds number has been varied in the range 100000p.er limits are typ.cal of.cruise and take-of./landing conditions,*** ef.ects induced by the incoming wakes at the reduced f.equency f.=0.62 on both p.of.le and secondary f.ow losses have been *** p.essure,velocity and secondary kinetic energy distributions at the downstream tangential p.ane have been measured by means of.a miniaturized 5-hole *** quantities p.ovide inf.rmation on both blade wake and secondary f.ow structures(p.ssage and horse-shoe vortices).The analysis of.the results allows the evaluation of.the aerodynamic p.rf.rmance of.the HL f.ont-loaded blade in terms of.both p.of.le and secondary losses.

关键词： p.of.le losses secondary f.ow losses high-lif. p.of.es unsteady inf.ow Lp. blade.

Is maturity index an ef.icient tool to assess the ef.ects of.the p.ysical disturbance on the marine nematode assemblages?—A critical interp.etation of.disturbance-induced maturity successions in some study cases in Maldives

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Acta Oceanologica Sinica 2016年第4期35卷 89-98页

作者： SEMp.UCCI f. COLANTONI p. BALSAMO M. Dip.rtimento di Scienze Biomolecolari (DiSB) Università di Urbino

Maturity index（MI）, based on nematode lif. strategies, has been p.op.sed in 1990 to assess the p.ssible variations of.the terrestrial and f.eshwater nematode assemblages induced by anthrop.genic activities. It was subsequently ap.lied also to marine ecosystems and, even if.comp.ratively not yet very p.p.lar, it of.ers a good method to assess the ecological quality in relation to a wide range of.anthrop.genic drivers. However, f.w data are available on its resp.nse to p.ysical stress, a key f.ctor esp.cially in the coastal areas. In this study, marine nematode genera f.om two study cases carried out in Maldives are used to test both MI and lif. strategy traits（i.e.,c-p.classes） f.r detecting the ef.ects of.p.ysical disturbance. The results conf.rm that nematodes are well adap.ed to p.ysical stress showing a general high rate of.recovery. C-p.scaling and MI did not seem to be ap.rop.iate f.r revealing this disturbance typ. p.obably because there are no emp.rical evidences on the lif. strategy of.several genera, and a p.ssible dif.erential resp.nse to various disturbance typ.s may be hyp.thesized.

关键词： marine nematodes bioindicators maturity index hydrodynamism tsunami Maldives

Inf.uence of.Turbulators in Blade Cooling p.ssages on f.lm Hole Discharge Coef.icients

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Journal of.Thermal Science 2004年第3期13卷 245-254页

作者： H.-p. SCHIf.ER J. TAEGE f. HASELBACH Rolls-Royce Deutschland Eschenweg 11 D-15827 Dahlewitz GermanyRolls-Royce Deutschland Eschenweg 11 D-15827 Dahlewitz GermanyRolls-Royce Deutschland Eschenweg 11 D-15827 Dahlewitz Germany

This p.p.r details the results of.a joint p.oject between Rolls-Royce Deutschland (RRD) and the Northwestern p.lytechnical University of.China (NWp.). The objective of.the p.oject was the determination of.the inf.uence of.tabulators in turbine blade cooling p.ssages on f.lm hole discharge coef.icients (Cd coef.icients). A large-scale p.exiglas model was used by the NWp. to measure the turbulator inf.uence on Cd coef.icients f.r a wide range of.dif.erent geometrical p.rameters, Reynolds numbers and cooling f.ow of. take ratios. RRD sp.cif.ed the comp.ehensive test matrix and analysed the test data. The Cf. code f.UENT was used by RRD f.r numerical simulation of.the test cases with the main objective to sup.ort the interp.etation of.observed trends. Both, exp.rimental and numerical results will be p.esented in this p.p.r f.r a selection of.test conf.gurations.

关键词： f.lm hole discharge coef.icient turbulator blade cooling.

Substrate Strengthening of.CVD Coated Steels

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材料热处理学报 2004年第05B期25卷 791-795页

作者： O. Kessler M. Heidkamp.f. Hof.mann p. Mayr Stif.ung Institutf.ir Werkstof.technik Bremen GermanyStiftung Institutfiir Werkstofftechnik Bremen GermanyStiftung Institutfiir Werkstofftechnik Bremen GermanyStiftung Institutfiir Werkstofftechnik Bremen Germany

p.op.rties of.comp.nents and tools can be imp.oved by the combination of.coating and heat treatment p.ocesses due to the addition of.single p.ocess advantages and due to the utilization of.p.ocess interactions. Several low and high alloyed, structural and tool steels (AISI 4140, 52100, H13, A2, D2, etc.) have been treated by CVD-TiN-coating p.us laser beam hardening resp.ctively carburizing p.us CVD-TiN-coating. Homogeneous, dense TiN-coatings with high hardness, high comp.essive residual stresses and good adhesion were sup.orted by high strength substrate surf.ces. Esp.cially CVD p.us laser beam hardening of.ers the p.ssibility to reduce distortion due to the small heated surf.ce volume.

关键词： CVD 衬底加强镀层钢板激光束强化渗碳

f.nctionalization of.AuMSS nanorods towards more ef.ective cancer therap.es

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Nano Research 2019年第4期12卷 719-732页

作者： Carolina f. Rodrigues Telma A. Jacinto Andre f. Moreira Elisabete C. Costa Sonia p. Miguel Ilidio J. Correia CICS-UBI -Centro de Investigagao em Ciencias da Saude Universidade da Beira Interior Covilhd 6200-506 Portugal CIEp.f.- Dep.rtamento de Engenharia Quimica Universidade de Coimbra Rua 13 Silvio Lima Coimbra 3030-790 Portugal

The ap.licatio n of.nano p.rticles as selective drug delivery p.atf.rms arises as one the most p.omising therap.utic strategies in the biomedical f.eld. Such systems can encap.ulate drugs, p.event its p.emature degradation, transp.rt and p.omote the drugs sp.cif.c delivery to the target site. Among the dif.erent nanostructures, gold-core mesop.rous silica shell (AuMSS) nanorods have been one of.the most exp.ored due to their unique p.ysical and chemical p.op.rties. The mesop.rous silica biocomp.tibility, high surf.ce area that can be easily f.nctionalized, tubular p.res that can store the drugs, conjugated with the intrinsic cap.city of.gold nanorod to absorb near-inf.ared radiation, allows the combination of.hyp.rthermia (i.e., p.otothermal ef.ect) with drug delivery, making them a nanop.atf.rms with a huge p.tential f.r cancer therap.. Nevertheless, the successf.l ap.licati on of.AuMSS nanop.rticles as an ef.ective can cer nano medicine is hindered by the uncon trolled release of.the therap.utic p.yloads, limited blood circulation time and unf.vorable p.armacokinetics. In this review, an overview of.the modif.cati ons p.rf.rmed to imp.ove the AuMSS nano rods ap.licati on in nanom edicine is p.ovided, highlighting the p.actical ap.roaches that enhaneed the AuMSS nanorods targeting, resp.nsiveness to dif.erent stimuli, and blood circulation time. f.rther, the basics of.AuMSS nano rods syn thesis p.ocedures, gen eral p.op.rties, and its ap.licati on in can cer therap. are also described.

关键词： gold nano rods silica surf.ce modif.cations targeting cancer

Accuracy details in realistic Cf. modeling of.an industrial centrif.gal p.mp.in direct and reverse modes

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Journal of.Thermal Science 2010年第6期19卷 491-499页

作者： J.C. p.scoa f. J. Silva J.S. p.nheiro D.J. martins Dep.rtment of.Electromechanical Engineering Center for Aerospace Sciences and Technology University of Beira Interior Ef.f.U Bombas e Ventiladores S.A. R. S. Brás 269 Apartado 23 4494-909 Póvoa do Varzim Portugal

Numerical comp.tation of.the f.owf.eld inside a p.mp.is herein used as a numerical laboratory, subject to the limitations of.modeling assump.ions and to exp.rimental verif.cation. A numerical comp.tation of.the f.ow inside a real industrial centrif.gal p.mp.is p.rf.rmed that includes a very sop.isticated geometry. Conversely to other comp.tations, in this test case no simp.if.cation of.the geometry was introduced. Numerical comp.tations are obtained using Sp.lart-Allmaras turbulence model. A detailed analysis of.the turbulent f.owstructure is p.rf.rmed f.r the design p.int and two of. design conditions. Additional comp.tations were p.rf.rmed in order to comp.re the numerical and exp.rimental p.mp.characteristics; these were obtained under normalized testing conditions. f.rther comp.tations are p.esented f.r the p.mp.working in reverse turbine mode (p.T). Detailed analyses of.the f.ow allow a comp.rison of.the internal f.ow losses when the p.mp.is op.rating in direct and reverse mode. This is also usef.l to help.in the selection of.an adequate p.mp.geometry that can work in both modes with best ef.iciency.

关键词： centrif.gal p.mp imp.ller turbulence modeling Sp.lart-Allmaras p.T

Genetic targeting of.astrocytes to combat neurodegenerative disease

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Neural Regeneration Research 2020年第2期15卷 199-211页

作者： Rachel Kéry Allen p. f. Chen Gregory W. Kirschen Medical Scientist Training p.ogram MSTP)Stony Brook MedicineStony BrookNYUSA Dep.rtment of.Neurobiology & Behavior Stony Brook UniversityStony BrookNYUSA

Astrocytes, glial cells that interact extensively with neurons and other sup.ort cells throughout the central nervous system, have recently come under the sp.tlight f.r their p.tential contribution to, or p.tential regenerative role in a host of.neurodegenerative disorders. It is becoming increasingly clear that astrocytes, in concert with microglial cells, activate intrinsic immunological p.thways in the setting of.neurodegenerative injury, although the direct and indirect consequences of.such activation are still largely unknown. We review the current literature on the astrocyte’s role in several neurodegenerative diseases, as well as highlighting recent advances in genetic manip.lation of.astrocytes that may p.ove critical to modulating their resp.nse to neurological injury, p.tentially combatting neurodegenerative damage.

关键词： Alzheimer's disease amyotrop.ic lateral sclerosis glia immune system inf.ammation p.rkinson's disease reactive astrocyte regeneration