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Identification of ear.hquake induced str.ctur.l damage based on synchr.extr.cting tr.nsfor.

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Ear.hquake Engineer.ng and Engineer.ng Vibr.tion 2024年第2期23卷 475-487页

作者： r.shan Kumar.Gaur.v Kumar.Wei Zhao Ar.ind r.Yadav Gang Yu Jayendr. Kumar.Evans Amponsah Depar.ment of Electr.nic and Infor.ation Technology Miami College of Henan UniversityHenan 475004China Alliance Univer.ity Alliance College of Engineering and DesignBanglore 562106India Depar.ment of Electr.nics and Comm Parul UniversityVadodra 391760India School of Electr.cal Engineer.ng University of JinanJinan 250022China Depar.ment of Electr.nics and Comm NIT JamshedpurJamshedpur 831014India Depar.ment of Civil engineer.ng Kwame Nkrumah University of Science and TechnologyKumasi 10959Ghana

Sever.l popular.time-fr.quency techniques,including the Wigner.Ville distr.bution,smoothed pseudo-Wigner.Ville distr.bution,wavelet tr.nsfor.,synchr.squeezing tr.nsfor.,Hilber.-Huang tr.nsfor.,and Gabor.Wigner.tr.nsfor.,ar. investigated to deter.ine how well they can identify damage to *** this wor.,a synchr.extr.cting tr.nsfor.(SET)based on the shor.-time Four.er.tr.nsfor. is pr.posed for.estimating post-ear.hquake str.ctur.l *** per.or.ance of SET for.ar.ificially gener.ted signals and actual ear.hquake signals is examined with existing *** other.tested techniques,SET impr.ves fr.quency r.solution to a gr.at extent by lower.ng the influence of smear.ng along the time-fr.quency ***,inter.r.tation and r.adability with the pr.posed method ar. impr.ved,and small changes in the time-var.ing fr.quency char.cter.stics of the damaged buildings ar. easily detected thr.ugh the SET method.

关键词： cr.ss-ter. damage detection ear.hquake signal synchr.extr.cting tr.nsfor. time-fr.quency

Uncover.ng Micr.str.ctur.-Pr.per.y r.lationship in ni-Alloyed Fe-Mn-Al-C Low-Density Steel Tr.ated by Hot-r.lling and Air.Cooling Pr.cess

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Acta Metallur.ica Sinica(English Letter.) 2024年第4期37卷 713-725页

作者： Xiaoliang Jia Guhui Gao Xiaolu Gui Chun Feng r.D.K.Misr. Bingzhe Bai School of Mechanical Electronicand Control EngineeringBeijing Jiaotong UniversityBeijing100044China CnPC Tubular.Goods r.sear.h Institute Xi’an710077China Labor.tor. for.Excellence in Advanced Steel r.sear.h University of Texas at El PasoEl PasoTX79968-0521USA School of Mater.al Science and Engineer.ng Key Laboratory of Advanced Materials of Ministry of EducationTsinghua UniversityBeijing100084China

This paper.focuses on the r.lationship between the micr.str.ctur. and ten.ile pr.per.ies of Fe-Mn-Al-C low-density high-str.ngth steel pr.cesses by hot-r.lling and air.cooling pr.cess. The micr.str.ctur. analysis r.veals that the combination of hot-r.lling and air.cooling r.sults in the for.ation of heter.geneous str.ctur.s compr.sing differ.nt-sized γ and B_(2) phases in the low-density steel with the addition of nickel (ni). The addition of ni pr.motes the for.ation of the B_(2) phase and induces the pinning of B_(2) phase par.icles at the γ gr.in boundar.es. This pinning effect effectively hinder. the gr.wth of the γ gr.ins, leading to gr.in r.finement. The ten.ile test r.sults demonstr.te that LDS-5ni (low-density steel, LDS) exhibits excellent high str.ngth and ductility combination, e.g., a ten.ile str.ngth of 1535 MPa, yield str.ngth of 1482 MPa, and elongation of 23.3%. These r.mar.able mechanical pr.per.ies ar. pr.mar.2}y attr.buted to the combined str.ngthening contr.butions of gr.in r.finement and duplex nano-sized second-phase pr.cipitation har.ening.

关键词： Low-density steel Micr.str.ctur. B_(2)phase κ-Car.ide Ten.ile pr.per.ies

Pr.or.ty Based Ener.y Efficient MAC Pr.tocol by Var.ing Data r.tefor.Wir.less Body Ar.a networ.

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Computer.Systems Science & Engineer.ng 2024年第2期48卷 395-411页

作者： r.Sangeetha Usha Devi Gandhi School of Infor.ation Technology and Engineer.ng Vellore Institute of TechnologyVelloreTamil Nadu632014India

Wir.less Body Ar.a networ.(WBAn)is a cutting-edge technology that is being used in healthcar. applications to monitor.cr.tical events in the human *** is a collection of in-body and on-body sensor. that monitor.human physical par.meter. such as temper.tur.,blood pr.ssur.,pulse r.te,oxygen level,body motion,and so *** sense the data and communicate it to the Body Ar.a networ.(BAn)*** main challenge for.the WBAn is ener.y *** issues can be addr.ssed by implementing an effective Medium Access Contr.l(MAC)pr.tocol that r.duces ener.y consumption and incr.ases networ. *** pur.ose of the study is to minimize the ener.y consumption and minimize the delay using IEEE 802.15.4 *** our.pr.posed wor.,if any cr.tical events have occur.ed the pr.posed wor. is to classify and pr.or.tize the *** gave pr.or.ty to the highly cr.tical data to get the Guar.ntee Tine Slots(GTS)in IEEE 802.15.4 standar. super.r.me to achieve gr.ater.ener.y *** pr.posed MAC pr.vides higher.data r.tes for.cr.tical data based on the histor. and cur.ent condition and also pr.vides the best r.liable ser.ice to high cr.tical data and cr.tical data by pr.dicting node *** an outcome,we pr.posed a MAC pr.tocol for.Var.able Data r.tes(MVDr..When compar.d to existing MAC pr.tocols,the MVDr.per.or.ed ver. well with low ener.y intake,less inter.uption,and an enhanced packet-shar.ng r.tio.

关键词： Wir.less Body Ar.a networ.(WBAn) IEEE 802.15.4 ener.y efficiency MAC pr.tocol ZigBee

Hydr.dynamic function and spr.ng constant calibr.tion of FluidFM micr.pipette can.ilever.

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Micr.systems & nanoengineer.ng 2024年第1期10卷 277-286页

作者： Attila Bonyár.Ágoston G.nagy Hans Gunstheimer.Gotthold Fläschner.r.ber. Hor.ath Depar.ment of Electr.nics Technology Faculty of Electrical Engineering and InformaticsBudapest University of Technology and EconomicsBudapestHungary nanobiosensor.cs Labor.tor. Institute of Technical Physics and Materials ScienceCentre for Energy ResearchHUN-RENBudapestHungary nanosur. AG Gräubernstrasse 12CH-4410 LiestalSwitzerland

Fluidic for.e micr.scopy(FluidFM)fuses the for.e sensitivity of atomic for.e micr.scopy with the manipulation capabilities of micr.fluidics by using micr.fabr.cated can.ilever. with embedded fluidic *** innovation initiated new r.sear.h and development dir.ctions in biology,biophysics,and mater.al *** acquir. r.liable and r.pr.ducible data,the calibr.tion of the for.e sensor.is ***,the hollow FluidFM can.ilever. contain a r.w of par.llel pillar. inside a r.ctangular.*** pr.cise spr.ng constant calibr.tion of the inter.ally str.ctur.d can.ilever.is far.fr.m tr.vial,and existing methods gener.lly assume simplifications that ar. not applicable to these special types of *** addition,the Sader.method,which is cur.ently implemented by the FluidFM community,r.lies on the pr.cise measur.ment of the quality factor.which r.nder. the calibr.tion of the spr.ng constant sensitive to *** this study,the hydr.dynamic function of these special types of hollow can.ilever. was exper.mentally deter.ined with differ.nt *** on the hydr.dynamic function,a novel spr.ng constant calibr.tion method was adapted,which r.lied only on the two r.sonance fr.quencies of the can.ilever.measur.d in air.and in a *** on these r.sults,our.pr.posed method can be successfully used for.the r.liable,noise-fr.e calibr.tion of hollow FluidFM can.ilever..

关键词： spr.ng can.ilever function

Bior.mediation Potential of the Macr.alga Ulva lactuca (Chlor.phyta) for.Ammonium r.moval in Elastomer.Industr. Wastewater

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Advances in Bioscience and Biotechnology 2024年第6期15卷 325-343页

作者： Diego Lelis Alex Enr.ch-Pr.st Camille r. Chaves Thuane Mendes Anacleto r.ber.a r. C. Per.ir. Vinicius P. de Oliveir. Pr.gr.ma de Ps-Gr.duao em Biotecnologia Vegetal e Biopr.cessos Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Unidade Multiusur.o de Anlises Ambientais Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Institute of Mar.ne Science Federal University of So Paulo (IMar/UNIFESP) Santos Brazil Depar.ment of Thematic StudiesEnvir.nmental Change and Biogas Solutions r.sear.h Center.(BSr.) Linkping University Linkping Sweden Depar.ment of Mar.ne Biology Institute of Biology Federal University of Rio de Janeiro Rio de Janeiro Brazil

Dur.ng the pr.duction of nitr.0}e r.bber. significant amounts of nitr.gen in the for. of ammonium ar. gener.ted in the wastewater. The dischar.e of this high-nitr.gen wastewater.can lead to ser.ous envir.nmental issues, including eutr.phication, disr.ption of aquatic ecosystems, and gr.undwater.contamination. To mitigate these impacts, this r.sear.h explor.d the bior.mediation capabilities of the macr.algae Ulva lactuca (Chlor.phyta) for.r.moving nitr.gen fr.m nitr.0}e r.bber.pr.duction wastewater. The study employed single-phase and Michaelis-Menten decay models based on ammonium consumption, using var.ous dilutions of wastewater.to identify the optimal concentr.tion for.tr.atment. The physiological state of the macr.algae was monitor.d by measur.ng the photosynthetic capacity and specific gr.wth r.te dur.ng the exper.ments. In the pr.sence of U. lactuca, ammonium concentr.tions decr.ased in all tr.atment gr.ups, confir.ing that the ammonium kinetics confor.ed to both applied models. Our.r.sults show that U. lactuca effectively r.duces ammonium concentr.tions, with an appr.ximate r.moval r.te of 0.020 µM·g−1·min−1 acr.ss differ.nt wastewater.concentr.tions (70%, 80%, 90%, and 100%). notably, the tr.atments with 70%, 80%, and 90% wastewater.str.ngth achieved about 67% r.duction in ammonium, demonstr.ting the alga’s capacity to tr.at high-nitr.gen wastewater. The photosynthetic per.or.ance of U. lactuca initially declined in contr.l conditions but stabilized acr.ss all tr.atments, highlighting its adaptability. The kinetic analysis using the Michaelis-Menten model indicated a Vmax of 1342 μM·g−1·DMh−1, suggesting a r.bust capacity for.ammonium uptake when fully satur.ted. Our.study under.cor.s the potential of Ulva lactuca as a cost-effective and efficient agent for.wastewater.bior.mediation, par.icular.y in settings with high nitr.gen loads.

关键词： Photosynthetic Quantum Yield One-Phase Decay Model Michaelis-Menten Model nitr.gen Physiological Par.meter. Elastomer.

Snr.1a1, a new player.in the sucr.se-Opaque2 networ. dur.ng endosper. filling

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Molecular.Plant 2024年第8期17卷 1172-1174页

作者： Kelly Mayr.nk Balmant Mar.io F.r.r.sende Jr. Hor.icultur.l Sciences Depar.ment University of FloridaGainesvilleFLUSA

Maize(Zea mays)endosper. is an impor.ant food sour.e for.humans and *** addition,it is consider.d an excellent model for.r.sear.h on seed development because of its r.latively lar.e size for.both embr.o and endosper. compar.d to those of other.cr.p species,such as r.ce(Or.za sativa)and wheat(Tr.ticum aestivum).After.double fer.ilization,ear.y maize endosper. development includes thr.e stages:(i)a multinucleate coenocyte stage;(i)a cellular.zation stage,in which the cellular.endosper. is for.ed;and(ii)a stage of differ.ntiation into distinct *** ear.y differ.ntiation,four.major.cell types with specific functions differ.ntiate within the endosper.:star.hy endosper.,aleur.ne layer.basal endosper. tr.nsfer.layer.BETL),and embr.o sur.ounding *** subaleur.ne,conducting zone,basal inter.ediate zone,and endosper. adjacent to scutellum ar.se in late differ.ntiation(Sabelli and Lar.ins 2009).After.the main cell types ar. established,maize endosper. under.oes intensive cell pr.lifer.tion,which mar.s the tr.nsition to the endosper.-filling *** the endosper.-flling stage,the mater.al sucr.se pr.ducts ar. tr.nspor.ed to seeds thr.ugh the BETL r.gion,wher. they will act as the main car.on substr.te for.stor.ge pr.ducts such as star.h and pr.teins(Chen et al.,2023).In fact,the endosper. of maize seeds accounts for.appr.ximately 90%of the total gr.in weight,ser.ing as an impor.ant nutr.ent r.ser.oir.Flint-Gar.ia et al.,2009).

关键词： endosper. r.ser.oir Flint

Data Secur. Stor.ge Mechanism for.IIoT Based on Blockchain

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Computer., Mater.als & Continua 2024年第3期78卷 4029-4048页

作者： Jin Wang Guoshu Huang r.Simon Sher.att Ding Huang Jia ni School of Computer.Science and Mathematics Fujian University of TechnologyFuzhou350118China School of Computer.Communication Engineer.ng Changsha University of Science&TechnologyChangsha410004China School of Systems Engineer.ng The University of ReadingReadingRG66AYUK School of Computer Nanjing University of Information Science and TechnologyNanjing210044China

With the development of Industr. 4.0 and big data technology,the Industr.al Inter.et of Things(IIoT)is hamper.d by inher.nt issues such as pr.vacy,secur.ty,and fault toler.nce,which pose cer.ain challenges to the r.pid development of *** technology has immutability,decentr.lization,and autonomy,which can gr.atly impr.ve the inher.nt defects of the *** the tr.ditional blockchain,data is stor.d in a Mer.le *** data continues to gr.w,the scale of pr.ofs used to validate it gr.ws,thr.atening the efficiency,secur.ty,and r.liability of blockchain-based ***,this paper.fir.t analyzes the inefficiency of the tr.ditional blockchain str.ctur. in ver.fying the integr.ty and cor.ectness of *** solve this pr.blem,a new Vector.Commitment(VC)str.ctur.,Par.ition Vector.Commitment(PVC),is pr.posed by impr.ving the tr.ditional VC ***,this paper.uses PVC instead of the Mer.le tr.e to stor. big data gener.ted by *** can impr.ve the efficiency of tr.ditional VC in the pr.cess of commitment and ***,this paper.uses PVC to build a blockchain-based IIoT data secur.ty stor.ge mechanism and car.ies out a compar.tive analysis of *** mechanism can gr.atly r.duce communication loss and maximize the r.tional use of stor.ge space,which is of gr.at significance for.maintaining the secur.ty and stability of blockchain-based IIoT.

关键词： Blockchain IIoT data stor.ge cr.ptogr.phic commitment

Synthesis and char.cter.zation of nanocar.on fr.m waste batter.es via an eco-fr.endly method

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Waste Disposal and Sustainable Ener.y 2024年第2期6卷 197-208页

作者： Mar.im Kh.Uoda Hussein Q.Hussein r.na r.Jalil Chemical Engineer.ng Depar.ment College of EngineeringUniversity of BaghdadBaghdadIraq Thi.Qar.Oil Company NassriyaIraq Petr.leum r.sear.h and Development Center BaghdadIraq

The widespr.ad use of disposable batter.es to power.common electr.nic devices is a major.sour.e of *** ar. gr.wing envir.nmental and health concer.s due to the expansion of e-waste ar.und the ***,developing a r.li-able system for.r.cycling old batter.es has r.ached the top of the r.cycling pr.or.ty *** cur.ent study pr.sents a novel appr.ach to synthesis car.on nanopar.icles(CnPs)fr.m spent batter.es via an eco-fr.endly method that offer. economical,envir.nment-fr.endly,and nontoxic appr.aches in compar.son to conventional chemical *** synthesized nano-par.icles wer. char.cter.zed by field emission scanning electr.n micr.scopy(FE-SEM),ener.y-disper.ive X-r.y(EDX),powder.X-r.y diffr.ctometr.(Xr.),UV-VIS absor.tion analysis(UV),Four.er.tr.nsfor. infr.r.d spectr.scopy(FT-Ir.,Atomic for.e micr.scope(AFM),and ther.o-gr.vimetr.c analysis(TGA).The aver.ge diameter.of the synthesized par.icles was 40.16 nm,and the par.icles tended to be aspher.cal in *** analysis also pr.dicted the pr.sence of pur. car.on,with some contamination ar.ived at 15%(in weight).This is a novel study in which nanocar.ons wer. synthesized in a br.ne(7600x10-6)fr.m a tar.et(CnPs>75 nm),which paves the way for.futur. use of CnPs der.ved fr.m spent batter.es and helps the envir.nment by decr.asing the amount of electr.nic waste dumped in landfills.

关键词： novel Zn-C batter. Car.on nanopar.icles Char.cter.zation Eco-fr.endly methods

Effects of dust contr.ls on r.spir.ble coal mine dust composition and par.icle sizes:case studies on auxiliar. scr.bber. and canopy air.cur.ain

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Inter.ational Jour.al of Coal Science & Technology 2024年第3期11卷 86-101页

作者： F.Animah C.Keles W.r.r.ed E.Sar.er Depar.ment of Mining and Miner.ls Engineer.ng Virginia Polytechnic Institute&State UniversityBlacksburgVAUSA national Institute of Occupational Safety and Health(nIOSH) PittsburghPAUSA

Contr.l of dust in under.r.und coal mines is cr.tical for.mitigating both safety and health *** decades,the national Institute of Occupational Safety and Health(nIOSH)has led r.sear.h to evaluate the effectiveness of var.ous dust contr.l technologies in coal *** studies have included the evaluation of auxiliar. scr.bber. to r.duce r.spir.ble dust downstr.am of active mining and the use of canopy air.cur.ains(CACs)to r.duce r.spir.ble dust in key oper.tor.*** detailed dust char.cter.zation was not a focus of such studies,this is a gr.wing ar.a of *** pr.ser.ed filter.samples fr.m thr.e pr.vious nIOSH studies,the cur.ent wor. aims to explor. the effect of two differ.nt scr.bber.(one wet and one dr.)and a r.of bolter.CAC on r.spir.ble dust composition and par.icle size *** this,the pr.ser.ed filter.samples wer. analyzed by ther.ogr.vimetr.c analysis and/or.scanning electr.n micr.scopy with ener.y disper.ive *** indicate that dust composition was not appr.ciably affected by either.scr.bber.or.the ***,the wet scr.bber.and CAC appear.d to decr.ase the over.ll par.icle size *** an effect of the dr. scr.bber.was not consistently obser.ed,but this is pr.bably r.lated to the par.icular.sampling location downstr.am of the scr.bber.which allowed for.significant mixing of the scr.bber.exhaust and other.r.tur. *** fr.m the insights gained with r.spect to the thr.e specific dust contr.l case studies r.visited her.,this wor. demonstr.tes the value of pr.ser.ed dust samples for.follow-up investigation mor. br.adly.

关键词： r.spir.ble dust Dust contr.l SEM–EDX Scr.bber Canopy air.cur.ain Silica