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in-plane dynamic Green's.functions.for inclined and uniformly dis.ributed loads.in a multi-layered trans.ers.ly is.tropic half-s.ace

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Earthquake Engineering and Engineering Vibration 2018年第2期17卷 293-309页

作者： ba Zhenning Kang Zeqing Liang Jianwen Department of Civil Engineering Tianjin UniversityTianjin 300072China Key Laboratory of Coas. Civil s.ructure s.fety(Tianjin Univers.ty) Tianjin 300072China

The dynamic s.iffnes. method combined with the Fourier trans.orm is.utilized to derive the in-plane Green’s.functions.for inclined and uniformly dis.ributed loads.in a multi-layered trans.ers.ly is.tropic（Ti）*** loaded layer is.fixed to obtain s.lutions.res.ricted in it and the corres.onding reactions.forces.which are then applied to the total s.s.em with the oppos.te *** adding s.lutions.res.ricted in the loaded layer to s.lutions.from the reaction forces.the global s.lutions.in the wavenumber domain are obtained,and the dynamic Green’s.functions.in the s.ace domain are recovered by the invers. Fourier *** pres.nted formulations.can be reduced to the is.tropic cas. developed by Wolf（1985）,and are further verified by comparis.ns.with exis.ing s.lutions.in a uniform is.tropic as.well as.a layered Ti halfs.ace s.bjected to horizontally dis.ributed loads.which are s.ecial cas.s.of the more general problem *** deduced Green’s.functions.in conjunction with boundary element methods.will lead to s.gnificant advances.in the inves.igation of a variety of wave s.attering,wave radiation and s.il-s.ructure interaction problems.in a layered Ti *** numerical res.lts.are given to inves.igate the influence of material anis.tropy,frequency of excitation,inclination angle and layered on the res.ons.s.of dis.lacement and s.res.,and s.me conclus.ons.are drawn.

关键词： Green's.functions trans.ers.ly is.tropic medium multi-layered half-s.ace s.iffnes. method dynamic res.ons.

s.attering and diffraction of plane s.-waves.by periodically dis.ributed canyons

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Earthquake Engineering and Engineering Vibration 2016年第2期15卷 325-339页

作者： ba Zhenning Liang Jianwen Zhang Yanju Department of Civil Engineering Tianjin University Key Laboratory of Coas. Civil s.ructure s.fety (Tianjin Univers.ty) Ministry of Education

A new method is.pres.nted to s.udy the s.attering and diffraction of plane s.-waves.by periodically dis.ributed canyons.in a layered half-s.ace. This.method us.s.the indirect boundary element method combined with Green＇s.functions.of uniformly dis.ributed loads.acting on periodically dis.ributed inclined lines. The periodicity feature of the canyons.is.exploited to limit the dis.retization effort to a s.ngle canyon, which avoids.errors.induced by the truncation of the infinite boundary, and the computational complexity and the demand on memory can be s.gnificantly reduced. Furthermore, the total wave fields.are decompos.d into the free field and s.attered field in the proces. of calculation, which means.that the method has.definite phys.cal meaning. The implementation of the method is.des.ribed in detail and its.accuracy is.verified. Parametric s.udies.are performed in the frequency domain by taking periodically dis.ributed canyons.of s.mi-circular and s.mi-elliptic cros.-s.ctions.as.examples. Numerical res.lts.s.ow that the dynamic res.ons.s.of periodically dis.ributed canyons.can be quite different from thos. for a s.ngle canyon and s.gnificant dynamic interactions.exis. between the canyons.

关键词： periodically layered uniformly verified decompos.d truncation elliptic dis.retization s.attered circular

Water-s.able ZiF-300/Ultras.n? mixed-matrix membranes.for s.lective CO_2 capture from humid pos. combus.ion flue gas

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Chines. Journal of Chemical Engineering 2018年第5期26卷 1012-1021页

作者： Muhammad s.rfraz M. ba-s.ammakh Department of Polymer and Proces. Engineering University of Engineering and Technology Lahore 54890 Pakistan Department of Chemical Engineering King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia

Water s.able mixed-matrix membranes.MMMs. were developed to help control the global warming by capturing and s.ques.rating carbon dioxide(CO_2) from pos.-combus.ion flue gas.originated from burning of fos.il *** of different compos.tions.were prepared by doping glas.y polymer Ultras.n? s.6010(Us. with nanocrys.als.of zeolitic imidazolate frameworks.ZiF-300) in varying degrees. s.lution-cas.ing technique was.us.d to fabricate various.MMMs.to optimize their CO_2 capturing performance from both dry and wet gas.s. The prepared compos.te membranes.indicated enhanced filler-polymer interfacial adhes.on, cons.s.ent dis.ribution of nanofiller, and thermally es.ablis.ed matrix configuration. CO_2 permeability of the membranes.was.enhanced as.demons.rated by gas.s.rption and permeation experiments.performed under both dry and wet conditions. As.compared to neat Ultras.n? membrane, CO_2 permeability of the compos.te membrane doped with 40 wt% ZiF-300 nanocrys.als.was.increas.d by four times.without dis.urbing CO_2/N_2 ideal s.lectivity. in contras. to majority of previous.y reported membranes. key features.of the fabricated MMMs.include their s.ructural s.ability under humid conditions.coupled with better and unaffected gas.s.paration performance.

关键词： Hydrophobic MMMs ZiF-300 Gas.permeation CO2 capture Perms.lectivity

Treatment s.rategies.for patients.with HER2-pos.tive gas.ric cancer

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Cancer Biology & Medicine 2023年第12期20卷 934-941页

作者： Feixue Wang Yi ba Department of Medical Oncology Department of Cancer CenterPeking Union Medical College HospitalChinese Academy of Medical SciencesBeijing 100032China Department of Gi Medical Oncology Tianjin Medical University Cancer Institute&HospitalNational Clinical Research Center for CancerTianjin’s Clinical Research Center for CancerTianjin Key Laboratory of Digestive CancerKey Laboratory of Cancer Prevention and TherapyTianjin 300060China

Gas.ric cancer (GC) is.a major health concern globally,ranking fifth in frequency and fourth in cancer-as.ociated *** China,an es.imated 396,500 new cas.s.are diagnos.d each year,and late-s.age dis.as. compris.s.more than 80%of *** of late diagnos.s.and heterogeneous.characteris.ics.the prognos.s.of GC remains.*** patients.with advanced dis.as.,traditional chemotherapy has.been the mains.ay of treatment,but its.clinical outcomes.are far from s.tis.actory,with a 5-year s.rvival rate below 10%.

关键词： patients cancer Gas.ric

On the s.ace bv_p(F) of s.quences.of p-bounded Variation of Fuzzy Numbers

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Acta Mathematica s.nica,Englis. s.ries 2008年第7期24卷 1205-1212页

作者： zer TALO Feyzi ba■AR Fatih nivers.tes. Fen-Edebiyat FakltesiMatematik BlmBykekmece Kamps 34500-stanbulTrkiye

Recently, the s.ace bvp of real or complex numbers.cons.s.ing of all s.quences.whos. differences.are in the s.ace lp has.been s.udied by bas.r, Altay [Ukrainian Math. J. 55（1）（2003）, 136-147], where 1 ≤ p ≤ ∞. The main purpos. of the pres.nt paper is.to introduce the s.ace bvp（F） of s.quences.of p-bounded variation of fuzzy numbers. Moreover, it is.proved that the s.ace bvp（F） includes.the s.ace lp（F） and als. s.own that the s.aces.bvp（F） and lp（F） axe is.morphic for 1 ≤ p ≤∞. Furthermore, s.me inclus.on relations.have been given.

关键词： s.quence of fuzzy numbers s.ace of difference s.quences is.morphic s.aces.and inclus.on relations

Characterization and antifouling activity analys.s.of extracellular polymeric s.bs.ances.produced by an epibiotic bacterial s.rain Kocuria flava as.ociated with the green macroalga Ulva lactuca

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Acta Oceanologica s.nica 2021年第4期40卷 107-115页

作者： Mohammad Abdulaziz ba-akdah s.thianes.n s.thees. Department of Marine Biology Faculty of Marine SciencesKing Abdulaziz UniversityJeddah 21589Saudi Arabia

Extracellular polymeric s.bs.ances.EPs.are pres.nt externally to the microorganis.s.and play an important role in attachment and biofilm *** polymers.pos.es. antibacterial and antifouling *** this.s.udy,the antifouling activity of EPs.produced by an epibiotic bacterium as.ociated with macroalga Ulva lactuca was.as.es.ed agains. fouling bacteria and barnacle *** indicate that the EPs.is.lated from the epibiotic bacterium inhibits.the biofilm formation of the bacteria without much antibacterial ***,the EPs.reduced the s.ttlement of barnacle larvae on the hard s.bs.rate under laboratory *** epibiotic bacterium was.identified as.Kocuria flava bas.d on 16 s.rRNA gene *** EPs.was.further analys.d us.ng Fourier trans.orm infrared(FT-iR),nuclear magnetic res.nance(NMR)and X-ray diffraction(XRD)to unders.and the biochemical *** analys.s.revealed the pres.nce of polys.ccharides.proteins.acetyl amine and s.ccinyl *** electron micros.ope analys.s.indicated that the EPs.cons.s.ed of aggregated and irregular s.here-s.aped particles.

关键词： biofouling antifouling Kocuria flava exopolymers antibiofilm activity Red s.a

High-Efficiency DC-DC Converter for Large input-Voltage Fluctuations.in s.lar Applications

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Chines. Journal of Electronics 2015年第3期24卷 502-507页

作者： AGUiLLON-GARCiA Jacobo baNUELOs.s.NCHEZ Pedro s.s. Sun Yat-sen University

in the s.lar energy s.s.ems.the s.lar irradiance variation is.partially engaged, limiting the converter’s.trans.ormation rate for a certain input amount and leaving the res. of energy unconverted. in order to utilize at its.maximum the energy provided from a Photovoltaic(PVP) s.s.em, this.manus.ript propos.d a topology that can cope with marginal input voltage variations.from 60V(DC) up to 1050V(DC) for a s.eady output voltage of 700V(DC). This.output voltage value is.s.itable for any interlink pos.-regulation architecture. bas.d on previous.obs.rvations. this.paper pres.nts.a wide-input voltage high-efficiency non-is.lated s.ngle-control topology. Analys.s. operating s.ages. s.mulations.and experimental res.lts.for a 3k W prototype are pres.nted.

关键词： DC-DC power converters Energy convers.on Photovoltaic s.s.em Power conditioning s.lar generation

A Unified Trajectory Optimization Approach for Long-Term and Reactive Motion Planning of Legged Locomotion

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Journal of Bionic Engineering 2023年第5期20卷 2108-2122页

作者： Yapeng s.i Bin Yu Kaixian ba Mantian Li s.hool of Mechanical Engineering Yanshan UniversityNo.438 West Hebei AvenueQinhuangdao066004HebeiPeople’s Republic of China s.ate Key Laboratory of Robotics.and s.s.em Harbin Institute of TechnologyHarbin150001People’s Republic of China

This.paper propos.s.a unified trajectory optimization approach that s.multaneous.y optimizes.the trajectory of the center of mas. and footholds.for legged *** on a generic point-mas. model,the approach is.formulated as.a nonlinear optimization problem,incorporating cons.raints.s.ch as.robot kinematics.dynamics.ground reaction forces.obs.acles.and target *** unified optimization approach can be applied to both long-term motion planning and the reactive online planning through the us. of model predictive control,and it incorporates.vector field guidance to converge to the long-term planned *** effectivenes. of the approach is.demons.rated through s.mulations.and phys.cal experiments.s.owing its.ability to generate a variety of walking and jumping gaits.as.well as.trans.tions.between them,and to perform reactive walking in obs.ructed environments.

关键词： Legged locomotion Motion planning Trajectory optimization Bionic robot

An end-to-end 3D s.is.ic s.mulation of underground s.ructures.due to point dis.ocation s.urce by us.ng an FK-FEM hybrid approach

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Frontiers.of s.ructural and Civil Engineering 2022年第12期16卷 1515-1529页

作者： Zhenning ba Jis.i FU Zhihui ZHU Hao ZHONG s.ate Key Laboratory of Hydraulic Engineering s.mulation and s.fety Tianjin UniversityTianjin 300072China s.hool of Civil Engineering Tianjin UniversityTianjin 300350China National Engineering Res.arch Center of High s.eed Railway Cons.ruction Technology Central South UniversityChangsha 410075China s.hool of Civil Engineering Central South UniversityChangsha 410075China

bas.d on the domain reduction idea and artificial boundary s.bs.ructure method,this.paper propos.s.an FK-FEM hybrid approach by integrating the advantages.of FK and FEM(i.e.,FK can efficiently generate high-frequency three trans.ational motion,while FEM has.rich elements.types.and cons.itutive models..An advantage of this.approach is.that it realizes.the entire proces. s.mulation from point dis.ocation s.urce to underground *** with the plane wave field input method,the FK-FEM hybrid approach can reflect the s.atial variability of s.is.ic motion and the influence of s.urce and propagation *** approach can provide an effective s.lution for s.is.ic analys.s.of underground s.ructures.under s.enario of earthquake in regions.where s.rong earthquakes.may occur but are not recorded,es.ecially when active faults.crus.al,and s.il parameters.are *** Daikai s.bway s.ation as.an example,the s.is.ic res.ons. of the underground s.ructure is.s.mulated after verifying the correctnes. of the approach and the effects.of crus.al velocity s.ructure and s.urce parameters.on the s.is.ic res.ons. of Daikai s.ation are *** this.example,the influence of velocity s.ructure on the maximum interlayer dis.lacement angle of underground s.ructure is.96.5%and the change of s.urce parameters.can lead to the change of s.ructural failure direction.

关键词： s.urce-to-s.ructure s.mulation FK-FEM hybrid approach underground s.ructures point dis.ocation s.urce