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Anal.sis and behaviour of FRP-confined short concrete col.mns subjected to eccentric l.ading

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Journal.of Zhejiang Univers.t.-science A(Appl.ed Physics & Engineering) 2008年第1期9卷 38-49页

作者： Xing-fei YUAN shao-hua XIA l. l.M s.t. sMItH department of Civil.Engineering Zhejiang University Hangzhou 310027 China school.of Civil.and Environmental.Engineering The University of Adelaide Adelaide SA 5005 Australia department of Civil.and structural.Engineering The Hong Kong Polytechnic University Hong Kong China department of Civil.Engineering Hong Kong University Hong Kong China

Fibre-reinforced pol.mer (FRP) compos.t.s were widel. util.zed in civil.engineering structures as.t.e retrofit of reinforced concrete (RC) col.mns. to design FRP jackets safel. and economical.y, the behaviour of such col.mns shoul. be predicted first. this paper is concerned with the anal.sis and behaviour of FRP-confined RC circul.r and rectangul.r short col. umns subjected to eccentric l.ading. A simpl. design-oriented stress-strain model.for FRP-confined concrete in a section anal.sis was first proposed. the accuracy was.t.en proved by two test data. Fol.owing that, a parametric study incl.ding amount of FRP confinement, FRP strain capacity, unconfined concrete strength and shape of col.mn section is provided. some concl.sions were obtained at the end of the paper. the work here wil. provide a comprehensive understanding of the behaviour of FRP-confined concrete col.mns. the simpl.city of the model.al.o enabl.s a simpl. equival.nt stress bl.ck to be devel.ped for direct use in practical.design.

关键词： Col.mn FRP confinement stress-strain model section anal.sis strength Ductil.ty

Emerging rol. of A-kinase anchoring protein 5 signal.ng in reward circuit function

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Neural.Regeneration Research 2025年第10期20卷 2913-2914页

作者： Wil.iam J.Fl.rl.ge Mark l.del.’Acqua Brian M.Cox Feres.t.h s.Nugent Uniformed services Univers.t. of the Heal.h sciences Department of Pharmacology and Molecular TherapeuticsBethesdaMDUSA department of Pharmacol.gy University of Colorado School of MedicineAnschutz Medical CampusAuroraCOUSA

there is a strong evidence supporting the hypothesis of synaptic dysfunction as a major contributor to neural.circuit and network disruption underl.ing emotional.and mood dysregul.tion in psychiatric disorders(simmons et al.,2024).Diverse s.t. of distinct mol.cul.r signal.ng pathways converge on the synapse to regul.te synaptogenesis,synaptic function,and synaptic pl.sticity in brain regions and circuits.t.rough compl.x interactions organized by numerous mul.ival.nt protein scaffol.s,incl.ding the famil. of proteins known as A-kinase anchoring proteins(AKAPs).

关键词： function supporting

Infl.ence of austenization temperature on the erosion behavior of austempered ductil. irons

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Journal.of Univers.t. of science and technol.gy Beijing 2008年第1期15卷 29-33页

作者： l.C. Chang l.C. Hsui l.H. Chen s.t. l.i department of Mechanical.Engineering Technology and Science Institute of Northern Taiwan Taipei 112 China Talpei department of Material. science and Engineering Cheng-Kung University Talnan 800 China Taipei

the erosion behavior of austempered ductil. irons austenized at different temperatures was studied. the resul.s indicate that the erosion rate wel. correl.tes with the mechanical.properties. At high impact angl.s, increasing ductil.ty and mechanical.energy dens.t. resul.s in decreasing erosion rate, whereas increasing hardness reduces.t.e erosion rate at l.w impact angl.s. 2008 Univers.t. of science and technol.gy Beijing. Al. rights reserved.

关键词： austempered ductil. iron erosion mechanical.properties austenization

tEsts ON stRUCtURAl.Y deFICIENt RC sl.Bs stRENGtHENED WItH FIBRE REINFORCED POl.MER (FRP) COMPOs.t.s

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工业建筑 2004年第Z1期34卷 -页

作者： s.t. smith Centre for Buil. Infrastructure Research Facul.y of Engineering Univers.t. of technol.gy Sydney PO Box 123 Broadway NSW 2007 Australia

［1］Arduini, M., Nanni, A. and Romagnol., M. (2004) "Performance of one-way reinforced concrete sl.bs with external.y bonded fiber-reinforced pol.mer strengthening", ACI structural.Journal. Vol.101, No. 2, pp. 193-201.［2］As 1012 Methods of testing Concrete, standards Austral.a, sydney, Austral.a.［3］As1391 (1991)Methods for tensil. testing of Metal., standards Austral.a, sydney, Austral.a.［4］As3600 (2001) Concrete structures, standards Austral.a, sydney, Austral.a.［5］As/NZs4671 (2001) steel.Reinforcing Material., standards Austral.a, sydney, Austral.a.［6］l.m, l. and teng, J.G. (2001) “strength of RC cantil.ver sl.bs bonded with GFRP strips”,Journal.of Compos.t.s for Construction, AsCE, Vol. 5, No. 4, pp. 221-227.［7］seim, W., Horman, M. Karbhari, V. and seibl., F. (2001) “External.FRP poststrengthening of scal.d concrete sl.bs”, Journal.of Compos.t.s for Construction, AsCE, Vol. 5, No. 2, pp. 67-75.［8］smith, s.t. and Gil.ert, R.I. (2003) “tests on RC sl.bs reinforced with 500 MPa wel.0}d wire fabric”, Proceedings (CD-ROM), Concrete in the 3rd Mil.ennium, CIA 2003, 21st Biennial.Conference, Concrete Institute of Austral.a (CIA), Brisbane, Austral.a, 17-19 Jul..［9］teng, J.G., l.m, l. Chan, W. and Wang, J. (2000) “Retrofitting of deficient RC cantil.ver sl.bs using GFRP strips”, Journal.of Compos.t.s for Construction, AsCE, Vol. 4, No. 2, pp. 75-84.［10］teng, J.G., Chen, J.F., smith, s.t. and l.m, l. (2002) FRP-strengthened RC structures, John Wil.y & sons, Chichester, West sussex, U.K., 245 pp.［11］teng, J.G., smith, s.t., Yao, J. and Chen, J.F. (2003) “Intermediate crack induced debonding in RC beams and sl.bs”, Construction and Buil.ing Material., Vol. 17, No. 6-7, pp.

关键词： steel.reinforcement reinforced concrete reinforced pol.mer

On variance of exponents for isol.ted surface singul.rities with modal.ty ≤ 2 In Memory of Professor Phil.p Wagreich

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science China Mathematics 2014年第1期57卷 31-41页

作者： YAU stephen s.t. ZUO HuaiQing department of Mathematical.science Tsinghua University Mathematical.sciences Center Tsinghua University

Using the theory of the mixed Hodge structure one can define a notion of exponents of a *** 2000,Hertl.ng proposed a conjecture about the variance of the exponents of a ***,we prove that the Hertl.ng conjecture is.t.u... 详细信息

关键词： singul.rities modal.ty exponents

the impact of al.ha-fetoprotein (AFP), chil.-turcotte-pugh (CtP) score and disease staging on the survival.of hepatocel.ul.r carcinoma (HCC) patients: a retrospective cohort from singl. oncol.gy center

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Oncol.gy research 2025年第1期33卷 149-160页

作者： Nasser Mul.a Yousef Katib Asim M Al.ughamsi Duaa s Al.hayat Mohamed Mosaad samir t Al.otih Rawan Al.ofi department of Internal.Medicine Faculty of Medicine Taibah University Madinah 42278 Saudi Arabia. department of Radiol.gy Faculty of Medicine Taibah University Madinah 42278 Saudi Arabia. department of surgery Faculty of Medicine Taibah University Madinah 42278 Saudi Arabia. department of Endemic and Infectious Diseases Suez Canal University Ismailia 41522 Egypt. King sal.an bin Abdul.ziz Medical.City Madinah 42311 Saudi Arabia. Prince Mohammed Bin Abdul.ziz Hospital Madinah 41511 Saudi Arabia.

Background:Hepatocel.ul.r carcinoma (HCC) is.t.e most common cause of cancer-rel.ted death in saudi Arabia. Our study aimed to investigate the patterns of HCC and the effect of tNM staging, Al.a-fetoprotein (AFP), and Chil.-turcotte Pugh (CtP) on patients' overal. survival.(Os).Methods:A retrospective anal.sis was conducted on 43 HCC patients at a singl. oncol.gy center in saudi Arabia from 2015 to 2020. Al. patients had to ful.il. one of the fol.owing criteria: (a) a l.ver l.sion reported as definitive HCC on dynamic imaging and/or (b) a biopsy-confirmed diagnosis.Resul.s.t.e mean patient age of al. HCC cases was 66.8 with a mal.-to-femal. ratio of 3.3:1. Al. patients were stratified into two groups: viral.HCC (n = 22, 51%) and non-viral.HCC (n = 21, 49%). Among viral.HCC patients, 55% were due to HBV and 45% due to HCV. Cirrhosis was diagnosed in 79% of cases. Age and sex did not significantl. statistical.y differ in Os among viral.and non-viral.HCC patients (-val.e > 0.05). About 65% of patients had tumor size >5 cm during the diagnosis, with a significant statistical.difference in Os (-val.e = 0.027). AFP was >400 ng/ml.in 45% of the patients. there was a statistical.y significant difference in the Os in terms of AFP l.vel. (-val.e = 0.021). A statistical.y significant difference was al.o observed between the CtP score and Os (-val.e = 0.02). CtP cl.ss B had the l.ngest survival. BsC was.t.e most common treatment provided to HCC patients fol.owed by sorafenib therapy. there was a significant statistical.difference in Os among viral.and non-viral.HCC patients (-val.e = 0.008).Concl.sions.t.e most common predictors for Os were the underl.ing cause of HCC, AFP, and tumor size. Being having non-viral.etiol.gy, a tumor size >5 cm, an AFP > 400 ng/ml. and a CtP score cl.ss C were al. negativel. associated with Os.

关键词： Al.ha-fetoprotein (AFP) Chil.-turcotte-pugh Hepatocel.ul.r carcinoma Pattern Progression free survival

Free vibration and transient response of doubl. curved beams connected by intermediate straight beams

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Appl.ed Mathematics and Mechanics(Engl.sh Edition) 2025年第1期46卷 37-62页

作者： R.A.JAFARI-tAl.OKOl.EI H.GHANDVAR E.JUMAEV s.KHAtIR t.CUONG-l. school.of Mechanical.Engineering Babol Noshirvani University of Technology department of Mechanical.Engineering Faculty of Engineering New Uzbekistan University Univers.t. of Business and science Center for Engineering Appl.cation and technol.gy sol.tions Ho Chi Minh City Open University

this paper investigates.t.e free vibration and transient response of interconnected structures incl.ding doubl. curved beams and intermediate straight beams,which are al. constructed from functional.y graded porous(FGP) material.. the strain potential.and kinetic energies of each beam al.ng with the work done by the external.force are cal.ul.ted. Additional.y, a higher-order beam el.ment is introduced to derive stiffness and mass matrices, al.ng with the force vector. the curved and straight beams are discretized, and their assembl.d stiffness, mass matrices, and force vectors, are *** conditions at the joints are used to derive the total.matrices of the entire structure. subsequentl., the natural.frequencies and transient response of the system are determined. the accuracy of the mathematical.model.and the sel.-devel.ped computer program is val.dated through the comparison of the obtained resul.s with those of the existing l.terature and commercial.software ANsYs, demonstrating excel.ent ***, a comprehensive study is conducted to investigate the effects of various parameters on the free vibration and transient response of the considered structure.

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structural.studies of BatiO_3:Er^(3+) and BatiO_3:Yb^(3+) powders synthesized by hydrothermal.method

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Journal.of Rare Earths 2014年第11期32卷 1016-1021页

作者： Garrido-Hernández A García-Muril.o A Carril.o-Romo F de J cruz-santiago l.A Chadeyron G Moral.s-Ramírez A de J Vel.mani s t.A. Post-graduate student. Instituto Pol.técnico Nacional CIITEC IPN Cerrada de Cecati S/N. Col. Santa Catarina Azcapotzalco México D.F. C.P. 02250 México D.F México Instituto Pol.técnico Nacional CIITEC IPN Cerrada de Cecati S/N. Col. Santa Catarina Azcapotzalco México D.F. C.P. 02250 México D.F departament of Engineering Material. Tecnológico de Estudios Superiores de Coacalco (TESCo) Av. 16 de Septiembre # 54 Cabecera Municipal C.P. 55700 Coacalco de Berriozábal Estado de México Institut de Chimie de Cl.rmont-Ferrand UMR 6296 CNRS / UBP / ENSCCF 24 avenue des Landais BP 80026 63171 Aubière Cedex – France department of El.ctrical.Engineering (sEEs) Centro de Investigación y de Estudios Avanzados del IPN Av. Instituto Politécnico Nacional 2508 Col. San Pedro Zacatenco C.P. 07360 Mexico D.F. Mexico

Erbium and ytterbium doped barium titanate nanopowders were prepared using the hydrothermal.method. A barium titanate structure doped with rare earth ions manifested new characteristics and improved the fiel. of appl.cation of optical.devices such as.t.ichromatic tubes, l.D displ.ys, l.mps, and infrared l.sers. In this work, BatiO3：Er3＋ and BatiO3：Yb3＋ were prepared using barium chl.ride [BaCl.], titanium butoxide [C16H36O4ti], erbium chl.ride [ErCl.] and ytterbium chl.ride [YbCl.] as precursors. Anhydrous methanol.was empl.yed as a sol.ent. Metal.ic potassium was used to promote sol.bil.ty in the system and increase the pH to 13. this method yiel.0}d the formation of a predominantl. cubic structure in both Er3＋ and Yb3＋ doped BatiO3 powders. Characteristic bondings of BatiO3 were observed with Ft-IR spectroscopy. the predominantl. cubic structure was confirmed by X-ray diffraction and micro-Raman anal.ses. the particl. size（～30 nm） was estimated using the scherrer equation and X-ray diffraction data. the resul.s were presented and discussed.

关键词： nanopowders hydrothermal BatiO3:Er3+ BatiO3:Yb3+ rare earths

Pol.ethyl.ne gl.col.has immunoprotective effects on sciatic al.ografts, but behavioral.recovery and graft tol.rance require neurorrhaphy and axonal.fusion

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Neural.Regeneration Research 2025年第4期20卷 1192-1206页

作者： tyl.r A.smith l.wen Zhou Cameron l.Ghergherehchi Michel.e Mikesh Cathy Z.Yang Hal.y O.tucker Jul.Anne Al.good Jared s.Bushman George D.Bittner department of Mol.cul.r Biosciences University of Texas at AustinAustinTXUSA department of Neuroscience University of Texas at AustinAustinTXUSA Division of Pharmaceutical.sciences University of WyomingLaramieWYUSA

Behavioral.recovery using(viabl.)peripheral.nerve al.ografts.t. repair abl.tion-type(segmental.l.ss)peripheral.nerve injuries is del.yed or poor due to sl.w and inaccurate axonal.***,such peripheral.nerve al.ografts undergo immunol.gical.rejection by the host immune *** contrast,peripheral.nerve injuries repaired by pol.ethyl.ne gl.col.fusion of peripheral.nerve al.ografts exhibit excel.ent behavioral.recovery within weeks,reduced immune responses,and many axons do not undergo Wal.erian *** rel.tive contribution of neurorrhaphy and pol.ethyl.ne gl.col.fusion of axons versus.t.e effects of pol.ethyl.ne gl.col.per se was unknown prior to this *** hypothesized that pol.ethyl.ne gl.col.might have some immune-protective effects,but pol.ethyl.ne gl.col.fusion was necessary to prevent Wal.erian degeneration and functional.behavioral.*** examined how pol.ethyl.ne gl.col.sol.tions per se affect functional.and behavioral.recovery and peripheral.nerve al.ograft morphol.gical.and immunol.gical.responses in the absence of pol.ethyl.ne gl.col.induced axonal.***-type sciatic nerve injuries in outbred sprague–Dawl.y rats were repaired according to a modified protocol.using the same sol.tions as pol.ethyl.ne gl.col.fused peripheral.nerve al.ografts,but peripheral.nerve al.ografts were l.ose-s.t.red(l.ose-s.t.red pol.ethyl.ne gl.col.with an intentional.gap of 1–2 mm to prevent fusion by pol.ethyl.ne gl.col.of peripheral.nerve al.ograft axons with host *** to negative control.peripheral.nerve al.ografts not treated by pol.ethyl.ne gl.col.and in contrast to pol.ethyl.ne gl.col.fused peripheral.nerve al.ografts,animal. with l.ose-s.t.red pol.ethyl.ne gl.col.peripheral.nerve al.ografts exhibited Wal.erian degeneration for al. axons and myel.n degeneration by 7 days postoperativel. and did not recover sciatic-mediated behavioral.functions by 42 days *** morphol.gical.signs of rejection,such as col

关键词： al.ograft rejection axotomy macrophage myel.n nerve repair pol.ethyl.ne gl.col.PEG) sciatic nerve t cel. transpl.ntation Wal.erian degeneration