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Development of damage probabi.i.y matri.es based on greek.earthquak. damage data

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Earthquak. Engi.eeri.g and Engi.eeri.g Vi.rati.n 2011年第1期10卷 129-141页

作者： Anastasi. k. Eleftheri.dou Athanasi.s i. k.rabi.i. Laboratory of Rei.forced Concrete Department of Civil EngineeringDemocritus University of ThraceGreece

A comprehensi.e study i. presented for empi.i.al sei.mi. vulnerabi.i.y assessment of typi.al structural types, representati.e of the bui.di.g stock.of Southern Europe, based on a large set of damage stati.ti.s. The observati.nal database was obtai.ed from post-earthquak. surveys carri.d out i. the area struck.by the September 7, 1999 Athens earthquak.. After analysi. of the collected observati.nal data, a uni.i.d damage database has been created whi.h compri.es 180,945 damaged bui.di.gs from/after the near-fi.ld area of the earthquak.. The damaged bui.di.gs are classi.i.d i. speci.i. structural types, accordi.g to the materi.ls, sei.mi. codes and constructi.n techni.ues i. Southern Europe. The sei.mi. demand i. descri.ed i. terms of both the regi.nal macrosei.mi. i.tensi.y and the rati. αg/ao, where αg i. the maxi.um peak.ground accelerati.n （PgA） of the earthquak. event and ao i. the uni.ue value PgA that characteri.es each muni.i.ali.y shown on the greek.hazard map. The relati.e and cumulati.e frequenci.s of the di.ferent damage states for each structural type and each i.tensi.y level are computed i. terms of damage rati.. Damage probabi.i.y matri.es （DPMs） and vulnerabi.i.y curves are obtai.ed for speci.i. structural types. A compari.on analysi. i. fulfi.led between the produced and the exi.ti.g vulnerabi.i.y models.

关键词： sei.mi. vulnerabi.i.y observati.nal earthquak. damage damage probabi.i.y matri.es (DPMs) vulnerabi.i.y curves post-earthquak. surveys Athens earthquak. exi.ti.g bui.di.gs

Semanti. Rule Based i.age Vi.ual Feature Ontology Creati.n

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i.ternati.nal Journal of Automati.n and computi.g 2014年第5期11卷 489-499页

作者： R. i. Mi.u k. k. Thyagharajan Department of Computer Sci.nce & Engi.eeri.g Jerusalem College of Engineering RMD Engi.eeri.g College

Multi.edi. i. one of the i.portant communi.ati.n channels for mank.0}d. Due to the advancement i. technology and enormous growth of mank.0}d, a vast array of multi.edi. data i. avai.able today. Thi. has resulted i. the obvi.us need for some techni.ues for retri.vi.g these data. Thi. paper wi.l gi.e an overvi.w of ontology-based i.age retri.val system for asteroi.eae flower fami.y domai.. i. order to reduce the semanti. gap between the low-level vi.ual features of an i.age and the hi.h-level domai. k.owledge, we have i.corporated a concept of multi.modal i.age ontology. So, the created asteroi.eae flower domai. speci.i. ontology would have the k.owledge about the domai. and the vi.ual features. The vi.ual features used to defi.e the ontology are prevalent color,basi. i.tri.si. pattern and contour gradi.nt. i. prevalent color extracti.n, the most domi.ant color from the i.ages was i.enti.i.d and i.dexed. i. order to determi.e the texture pattern for a parti.ular flower, basi. i.tri.si. patterns were used. The contour gradi.nts provi.e the i.formati.n on the i.age edges wi.h respect to the i.age base. These feature values are embedded i. the ontology at appropri.te slots wi.h respect to the domai. k.owledge. Thi. paper also defi.es some of the query axi.ms whi.h are used to retri.ve appropri.te i.formati.n from the created ontology. Thi. ontology can be used for i.age retri.val system i. semanti. web.

关键词： i.formati.n and k.owledge computer vi.i.n i.telli.ent computi.g feature extracti.n ontology

Fati.ue i.duced Alterati.n of the Superfi.i.l Strength Properti.s of 2024 Alumi.um Alloy

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Journal of Materi.ls Sci.nce & Technology 2011年第9期27卷 776-784页

作者： k.-D. Bouzak.0} i. Mi.i.i.i. Sp.g. Pantelak.0} A.N. Chamos Laboratory for Machi.e Tools and Manufacturi.g Engi.eeri.g Mechanical Engineering Department Aristotle Uni-versity of Thessaloniki Laboratory of Technology and Strength of Materi.ls Department of Mechanical Engineering & Aeronautics Univer-sity of Patras

alumi.um alloy 2024 T3 speci.ens have been subjected to constant ampli.ude fati.ue loadi.g at R=0.1. Duri.g fati.ue, an appreci.ble i.crease of the surface hardness of the materi.l at the meso-scale can be observed and captured by means of nanoi.dentati.ns. Surface hardness i.creases wi.h i.creasi.g fati.ue stress ampli.ude and advanci.g number of appli.d fati.ue cycles. Observed i.crease of speci.en surface hardeni.g degree duri.g fati.ue causes an evoluti.n of superfi.i.l mechani.al strength properti.s of the alloy. Stress-strai. curves associ.ted wi.h the evoluti.g superfi.i.l mechani.al properti.s are deri.ed, employi.g a developed fi.i.e element method （FEM）-supported evaluati.n procedure of nanoi.dentati.n experi.ental results.

关键词： 2024 alumi.um alloy Nanoi.dentati.ns Fati.ue loadi.g Stress-strai. curves

Effects of heavy metals (Pb^(2+) and Cd^(2+)) on the ultrastructure, growth and pi.ment contents of the uni.ellular cyanobacteri.m Synechocysti. sp. PCC 6803

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Chi.ese Journal of Oceanology and Li.nology 2009年第2期27卷 383-388页

作者： k. k. i. U. Arunak.mara 张学成 College of Mari.e Li.e Sci.nces Ocean University of China Department of Crop Sci.nce Faculty of AgricultureUniversity of Ruhuna

The uni.ellular cyanobacteri.m Synechocysti. sp. PCC 6803, a model organi.m k.own for i.s uni.ue combi.ati.n of hi.hly desi.able molecular geneti., physi.logi.al and morphologi.al characteri.ti.s, was employed i. the present study. The speci.s was cultured i. Bg11 li.ui. medi.m contai.ed vari.us i.i.i.l concentrati.ns of Pb^2＋ and Cd〉（0, 0.5, 1, 2, 4, 6 and 8 mg/L）. The experi.ent was conducted for si. days and the metal i.duced alterati.ns i. the ultrastructure, growth and pi.ment contents were assessed. Alterati.ns i. the ultrastructure of the Synechocysti. sp. PCC 6803 cells became evi.ent wi.h the i.creased （〉4 mg/L Pb^2＋） metal concentrati.n. The photosyntheti. apparatus （thylak.i. membranes） were found to be the worst affected. Deteri.rated or completely destroyed thylak.i. membranes have made large empty spaces i. the cell i.teri.r. i. addi.i.n, at the hi.hest concentrati.n （8 mg/L pb^2＋）, the polyphosphate granules became more promi.ent both i. si.e and number. Despi.e the i.i.i.l sli.ht sti.ulati.ns （0.2, 3.8 and 6.5% respecti.ely at 0.5, 1 and 2 mg/L pb^2＋）, both metals i.hi.i.ed the growth i. a dose-dependent manner as i.cubati.n progressed. Pi.ment contents （chlorophyll a, 13 carotene and phycocyani.） were also decreased wi.h i.creasi.g metal concentrati.n. Cells exposed to 6 mg/L Pb^2＋, resulted i. 36.56, 37.39 and 29.34% reducti.ns of chlorophyll a, 13 carotene and phycocyani. respecti.ely over the control. Correspondi.g reducti.ns for the same CdZ＋concentrati.ns were 57.83, 48.94 and 56.90%. Lethal concentrati.n （96 h LC50） values （3.47 mg/L Cd^2＋ and 12.11 mg/L Pb^2＋） i.di.ated that Synechocysti. sp. PCC 6803 i. more vulnerable to Cd^2＋ than Pb^2＋.

关键词： growth pi.ment contents Synechocysti. sp. PCC 6803 ultrastructure

i.fluence of bed heterogenei.y and habi.at type on macroi.vertebrate uptak. i. peri.urban streams

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i.ternati.nal Journal of Sedi.ent Research 2010年第3期25卷 203-220页

作者： REi., H. E. BRi.RLEY, g. J. booth.oyd, i. k. g School of Envi.onment University of Auckland 10 Symonds St Auckland New Zealand Research Sci.nti.t golder Associ.tes LtD PO Box 33-849 Takapuna 0622 Auckland New Zealand

The role of geomorphi. structure, referred to as physi.al heterogenei.y, and i.s i.fluence upon the coloni.ati.n of habi.at by macroi.vertebrates was analysed i. the peri.urban, Twi. Streams Catchment, i. West Auck.and, New Zealand. Usi.g a cross-scalar approach, 4 ri.fle-run assemblages were analysed i. each of 2 Ri.er Styles (a confi.ed, low si.uosi.y, gravel bed ri.er and a partly confi.ed, low si.uosi.y, bedrock. cobble, and gravel bed ri.er). Each of these 8 locati.ns compri.ed 2 di.ti.ct sampli.g areas; the upstream zone had a more heterogeneous ri.er bed wi.h a hi.h di.ersi.y of physi.al features and flow, whi.st the downstream area had a more homogeneous structure. Mi.rohabi.at features sampled at each si.e i.cluded streambed materi.l, bank.margi.s, fi.e grai.ed organi. debri., wood, and boulders. Habi.at mosai.s and thei. associ.ted macroi.vertebrate relati.nshi.s followed a semi.predi.table but i.terrupted pattern, supporti.g the vi.w that ri.er systems are a patchy di.conti.uum. Homogeneous zones were more frequently characteri.ed by hi.her proporti.ns of Tri.hoptera than heterogeneous zones, whi.st heterogeneous zones were frequently characteri.ed by Plecoptera and Ephemeroptera. Di.ersi.y was maxi.i.ed when the speci.s pools from heterogeneous and homogeneous si.es were combi.ed for any gi.en si.e. Functi.nal habi.ats i.fluenced macroi.vertebrate assemblages i. non-li.ear and complex ways. Wood and organi. debri. habi.ats were associ.ted wi.h hi.h di.ersi.y, abundance, and sensi.i.e speci.s whereas streambed habi.at was usually associ.ted wi.h low di.ersi.y. A di.erse range of physi.al zones that approxi.ates the ’natural range of behavi.ur’ for the gi.en type of stream was consi.ered to provi.e a more effecti.e platform for rehabi.i.ati.n planni.g than emphasi.i.g heterogenei.y of physi.al structure i. i.s own ri.ht.

关键词： Heterogenei.y Functi.nal habi.at Urban stream Rehabi.i.ati.n geomorphology Macroi.vertebrates

Advancement i. uti.i.ati.n of magneti. resonance i.agi.g and bi.mark.rs i. the understandi.g of schi.ophreni.

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World Journal of Cli.i.al Cases 2025年第1期13卷 11-15页

作者： Ai.an k.Ti.pack.Danyaal g Buttar Mandeep k.ur Department of Psychi.try Campbell University School of Osteopathic MedicineBuies CreekNC 27506United States Department of Psychi.try and Behavi.ral Health Mercyhealth Hospital and Trauma CenterJanesvilleWI 53548United States

Hi.tori.ally,psychi.tri. di.gnoses have been made based on pati.nt’s reported symptoms applyi.g the cri.eri. from di.gnosti. and stati.ti.al manual of mental *** uti.i.ati.n of neuroi.agi.g or bi.mark.rs to mak. the di.gnosi. and manage psychi.tri. di.orders remai.s a di.tant *** have been several studi.s that exami.e brai. i.agi.g i. psychi.tri. di.orders,but more work.i. needed to eluci.ate the complexi.i.s of the human *** thi. edi.ori.l,we exami.e two arti.les by Xu et al and Stoyanov et al,that show developments i. the di.ecti.n of usi.g neuroi.agi.g to exami.e the brai.s of people wi.h schi.o-phreni. and *** et al used magneti. resonance i.agi.g to exami.e the brai. structure of pati.nts wi.h schi.ophreni.,i. addi.i.n to exami.i.g neurotransmi.ter levels as *** et al used functi.nal magneti. resonance i.agi.g to look.at modulati.n of di.ferent neural ci.cui.s by di.gnosti.-speci.i. scales i. pati.nts wi.h schi.ophreni. and *** two studi.s provi.e cruci.l evi.ence i. advanci.g our understandi.g of the brai. i. prevalent psychi.tri. di.orders.

关键词： Schi.ophreni. Magneti. resonance i.agi.g Bi.mark.rs Neurotransmi.ters Psychi.tri. di.orders

Thermal analysi. of annular fi.s wi.h temperature-dependent thermal properti.s

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Appli.d Mathemati.s and Mechani.s(Engli.h Edi.i.n) 2013年第11期34卷 1349-1360页

作者： i. g. Ak.OY Department of Mechani.al Engi.eeri.g Inonu University

The thermal analysi. of the annular rectangular profi.e fi.s wi.h vari.ble thermal properti.s i. i.vesti.ated by usi.g the homotopy analysi. method （HAM）. The thermal conducti.i.y and heat transfer coeffi.i.nt are assumed to vary wi.h a li.ear and power-law functi.n of temperature, respecti.ely. The effects of the thermal-geometri. fi. parameter and the thermal conducti.i.y parameter vari.ti.ns on the temperature di.tri.uti.n and fi. effi.i.ncy are i.vesti.ated for di.ferent heat transfer modes. Results from the HAM are compared wi.h numeri.al results of the fi.i.e di.ference method （FDM）. i. can be seen that the vari.ti.n of di.ensi.nless parameters has a si.ni.i.ant effect on the temperature di.tri.uti.n and fi. effi.i.ncy.

关键词： annular fi. vari.ble thermal property homotopy analysi. method

Arcti. sea-i.e extent: No record mi.i.um i. 2023 or recent years

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Atmospheri. and Oceani. Sci.nce Letters 2025年第1期18卷 52-55页

作者： Ola M.Johannessen Tor i.Olaussen Nansen Sci.nti.i. Soci.ty BergenNorway Nansen Envi.onmental and Remote Sensi.g Center BergenNorway

Arcti. sea-i.e extent reaches i.s mi.i.um each year i. September. On 11 September 2023 the mi.i.um was 4.969 mi.li.n square k.0}ometers(***^(2)). Thi. was not a record low, whi.h occurred i. 2012, when the mi.i.um was 4.175 ***^(2), 0.794 ***^(2) less than the mi.i.um i. 2023. However, the i.e extent had decreased by 0.432 ***^(2) compared wi.h 2022. Nevertheless, the summer melti.g i. 2023 was remark.bly less than expected when consi.eri.g the strong heat waves i. the atmosphere and ocean, wi.h record temperatures set around the world. i. general, there i. a hi.h correlati.n between the long-term decrease i. sea-i.e extent and the i.creasi.g CO_(2) i. the atmosphere, where the i.crease of CO_(2) i. recent decades explai.s about 80% of the decrease i. sea i.e i. September, whi.e the remai.der i. caused by natural vari.bi.i.y.

关键词： Sea i.e Arcti. Mi.i.um i.e Cli.ate

Steppi.g up after spi.al cord i.jury:negoti.ti.g an obstacle duri.g walk.0}g

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Neural Regenerati.n Research 2025年第7期20卷 1919-1929页

作者： Alai. Fri.on Charly g.Lecomte Department of Pharmacology-Physi.logy Faculty of Medicine and Health SciencesUniversitéde SherbrookeCentre de recherche du Centre Hospitalier Universitaire de SherbrookeSherbrookeQCCanada

Every day walk.0}g consi.ts of frequent voluntary modi.i.ati.ns i. the gai. pattern to negoti.te *** spi.al cord i.jury,steppi.g over an obstacle becomes *** over an obstacle requi.es sensori.otor transformati.ns i. several structures of the brai.,i.cludi.g the pari.tal cortex,premotor cortex,and motor *** i.formati.n and planni.g are transformed i.to motor commands,whi.h are sent from the motor cortex to spi.al neuronal ci.cui.s to alter li.b trajectory,coordi.ate the li.bs,and mai.tai. *** spi.al cord i.jury,bi.i.ecti.nal communi.ati.n between the brai. and spi.al cord i. di.rupted and ani.als,i.cludi.g humans,fai. to voluntari.y modi.y li.b trajectory to step over an ***,i. thi. revi.w,we di.cuss the neuromechani.al control of steppi.g over an obstacle,why i. fai.s after spi.al cord i.jury,and how i. recovers to a certai. extent.

关键词： bi.mechani.s locomoti.n neurophysi.logy obstacle negoti.ti.n spi.al cord i.jury