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Geomechani.al moni.ori.g of rock's massi.e i. zones of breaks

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中国有色金属学会会刊：英文版 2005年第S1期15卷 275-278页

作者： m. A. Zhuravkov S. i. Bogdan m. A. Kovaleva Belarus State Uni.ersi.y Minsk 220050 BelarusBelarus State University Minsk 220050 BelarusBelarus State University Minsk 220050 Belarus

For safe development of underground space and especi.lly i. areas of geologi.al i.fri.gements i. i. necessary to creat effecti.e system of tracki.g, forecasti.g and management for deformi.g processes i. such areas-system of geomechani.al moni.ori.g. Besi.es i. i. necessary to study and i.agi.e the i.ternal mechani.m of deformi.g processes i. such speci.l zones. i. the paper some basi. aspects of creati.n of geomechani.al moni.ori.g systems for reali.ati.n of supervi.i.n, study and modelli.g of deformi.g processes, for modelli.g and study of the stress-strai. state of massi. i. areas of large-scale underground mi.i.g works i. vi.w of a block-hi.rarchi.al structure of rock’s massi.e (presence of geologi.al i.fri.gements) are consi.ered. i. parti.ular such i.portant tasks, as research of deformi.g processes i. areas of geologi.al i.fri.gements wi.h the help of GPS-technologi.s and use of the recei.ed results for the modeli.g; constructi.n of models adequately descri.i.g a condi.i.n of rock’s massi.e i. area of geologi.al i.fri.gement. Some results of researches on study of cavi.i.s i.fluence on occurrence of an area of li.i.i.g condi.i.ns i. regi.n of geologi.al i.fri.gement and possi.le shi.t along i.fri.gement are submi.ted.

关键词： geologi.al i.fri.gement shi.t di.placement stress-strai. state

ATOmi.Ti. Si.ULATi.NS FOR Ni.Al i.TERmETALLi.S

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Acta metallurgi.a Si.i.a(Engli.h Letters) 1995年第Z1期8卷 287-298页

作者： BASKES m. i.(Sandi. Nati.nal Laboratori.s, Li.ermore, Cali.ormi.) Sandi. Nati.nal Lab Livermore California United States

A large number of Embedded Atom method (EAm) potenti.ls have been developed for the Ni.Al system. These potenti.ls are compared to a common data base. i. i. found that there i. si.ni.i.ant di.ference i. quali.y i. these potenti.ls. One of the potenti.ls has also been extended to represent the properti.s of hydrogen i. Ni.Al i.termetalli.s. Thi. potenti.l descri.es the soluti.n and mi.rati.n behavi.r of hydrogen i. both Ni.and Al.A number of calculati.ns usi.g the Ni.Al/H potenti.l have been performed. i. i. found that hydrogen strongly prefers si.es i. mi.Ai.that are surrounded by 6 Ni.atoms. Calculati.ns of trappi.g of hydrogen to a number of grai. boundari.s i. Ni.Al have been performed as a functi.n of hydrogen chemi.al potenti.l at room temperature. The fai.ure of these bi.rystals under tensi.e stress has been exami.ed and wi.l be compared to the fai.ure of pure mi.Ai.*** order to i.vesti.ate the potenti.l embri.tlement of γ/γ'alloys, trappi.g of hydrogen to a spheri.al Hi.Al preci.i.ate i. Ni.as a functi.n of chemi.al potenti.l at room temperature has been calculated. i. appears that the boundary i. not a strong trap for hydrogen, hence embri.tlement i. these alloys i. not pri.ari.y due to i.teracti.ns of hydrogen wi.h the γ/γ'i.terface. (Supported by the U. S. DOE through Contract DE-AC04-94AL85000.)

关键词： i.termetalli.s atomi.ti. calculati.ns,hydrogen embri.tlement

The m3Y Double Foldi.g Di.si.ati.e model i. Agreement wi.h Preci.e Fusi.n Cross Secti.ns

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Journal of modern Physi.s 2013年第5期4卷 1-4页

作者： i. i. Gontchar m. V. Chushnyakova Physi.s and Chemi.try Department Omsk State Transport University Omsk Russia

Large numbers of preci.i.n fusi.n exci.ati.n functi.ns were fi.ted i. the li.erature usi.g the nucleus-nucleus i.teracti.n potenti.l havi.g the Woods-Saxon shape. The di.fuseness of thi. potenti.l fusi.n ranges from 0.75 to 1.5 fm. Thi. i. much larger than the value of 0.65 fm requi.ed by the elasti. scatteri.g data. Tryi.g to resolve thi. contradi.ti.n we develop the di.si.ati.e trajectory model based on the densi.y-dependent m3Y NN-forces folded wi.h the nuclear matter di.tri.uti.n. Resulti.g potenti.l possesses the normal di.fuseness about 0.65 fm. Wi.h thi. potenti.l we reach the agreement wi.h the data for 16O+208Pb, 28Si.208Pb, 32S+208Pb reacti.ns wi.hi. 5%.

关键词： Heavy i.n Fusi.n m3Y NN-Forces Double Foldi.g Potenti.l Fusi.n Exci.ati.n Functi.n

Usi.g a 3-D multi.ellular si.ulati.n of spi.al cord i.jury wi.h li.e cell i.agi.g to study the neural i.mune barri.r to nanoparti.le uptake

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Nano Research 2016年第8期9卷 2384-2397页

作者： Alan P. Wei.htman Stuart i. Jenki.s Di.ya m. Chari Cellular and Neural Engi.eeri.g Group Institute for Science and Technology in Medicine Huxley Building Keele University Keele ST55BG UK

Development of nanoparti.le （NP） based therapi.s to promote regenerati.n i. si.es of central nervous system （CNS; i.e, brai. and spi.al cord） pathology reli.s cri.i.ally on the avai.abi.i.y of experi.ental models that offer bi.logi.ally vali. predi.ti.ns of NP fate i. vi.o. However, there i. a major lack of bi.logi.al models that mi.i. the pathologi.al complexi.y of target neural si.es i. vi.o, parti.ularly the responses of resi.ent neural i.mune cells to NPs. Here, we have uti.i.ed a previ.usly developed i. vi.ro model of traumati. spi.al cord i.jury （based on 3-D organotypi. sli.e arrays） wi.h dynami. ti.e lapse i.agi.g to reveal i. real-ti.e the acute cellular fate of NPs wi.hi. i.jury foci. We demonstrate the uti.i.y of our model i. reveali.g the well documented phenomenon of avi. NP sequestrati.n by the i.tri.si. i.mune cells of the CNS （the mi.rogli.）. Such i.mune sequestrati.n i. a known translati.nal barri.r to the use of NP-based therapeuti.s for neurologi.al i.jury. Accordi.gly, we suggest that the uti.i.y of our model i. mi.i.ki.g mi.rogli.l sequestrati.n behavi.urs offers a valuable i.vesti.ati.e tool to evaluate strategi.s to overcome thi. cellular response wi.hi. a si.ple and bi.logi.ally relevant experi.ental system, whi.st reduci.g the use of li.e ani.al neurologi.al i.jury models for such studi.s.

关键词： organotypi. sli.e culture mi.rogli. i.mune barri.r corti.osteroi. dexamethasone ti.e lapse mi.roscopy

Soi. bentoni.e wall protects foundati.n from thrust faulti.g: analyses and experi.ent

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Earthquake Engi.eeri.g and Engi.eeri.g Vi.rati.n 2013年第3期12卷 473-486页

作者： meysam Fadaee i. Anastasopoulos G. Gazetas m.K. Jafari.m. Kamali.n i.ternati.nal i.sti.ute of Earthquake Engi.eeri.g and Sei.mology School of Ci.i. Engi.eeri.g National Technical University

When sei.mi. thrust faults emerge on the ground surface, they are parti.ularly damagi.g to bui.di.gs, bri.ges and li.eli.es that li. on the rupture path. To protect a structure founded on a ri.i. raft, a thi.k di.phragm-type soi. bentoni.e wall （SBW） i. i.stalled i. front of and near the foundati.n, at suffi.i.nt depth to i.tercept the propagati.g fault rupture. Extensi.e numeri.al analyses, veri.i.d agai.st reduced-scale （1 g） spli. box physi.al model tests, reveal that such a wall, thanks to i.s hi.h deformabi.i.y and low shear resi.tance, ＂absorbs＂ the compressi.e thrust of the fault and forces the rupture to devi.te upwards along i.s length. As a consequence, the foundati.n i. left essenti.lly i.tact. The effecti.eness of SBW i. demonstrated to depend on the exact locati.n of the emergi.g fault and the magni.ude of the fault offset. When the latter i. large, the unprotected foundati.n experi.nces i.tolerable ri.i.-body rotati.n even i. the foundati.n structural di.tress i. not substanti.l.

关键词： soi. bentoni.e wall fault rupture soi.-structure i.teracti.n sei.mi. hazard mi.i.ati.n tectoni. deformati.n soi.-foundati.n i.teracti.n

Search for mi.rogli.-speci.i. pepti.es:advances i. the di.covery toolbox

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Neural Regenerati.n Research 2025年第2期20卷 471-472页

作者： i.an Sarabi. Kyle m.Koss Department of Surgery University of ArizonaTucsonAZUSA

Uncontrolled and chroni. i.flammatory states i. the central nervous system(CNS)are the hallmark of neurodegenerati.e pathology and every i.jury or stroke-related *** key medi.tors of these neuroi.flammatory states are gli.l cells known as mi.rogli.,the resi.ent i.mune cell at the core of the i.flammatory event,and astrogli.,whi.h encapsulate i.flammatory i.sults i. proteoglycan-ri.h scar *** gli.ti. scar blocks si.ni.i.ant porti.ns of healthy axonal networki.g,preventi.g *** most neuroi.flammati.n i. exclusi.ely based on the responses of sai. mi.rogli.,thei. phenotypes are suggested to follow those of macrophages;m1 and m2 are opposi.es of pro-and ***,mi.rogli.l phenotypes have been i.enti.i.d to be on an i.flammatory spectrum encompassi.g developmental,homeostati.,and reparati.e behavi.rs as opposed to thei. abi.i.y to affect devastati.g cell death cascades and scar ti.sue formati.n.

关键词： i.flammati.n pathology death

Opti.i.ati.n of the fuel rod＇s arrangement cooled by turbulentnanoflui.s flow i. pressuri.ed water reactor (PWR)

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Chi.ese Journal of Chemi.al Engi.eeri.g 2017年第6期25卷 722-731页

作者： m. Hatami.mJ.Z. Ganfi.i. Sohrabi.sl D. Ji.g i.ternati.nal Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'anJiaotong University Xi'an 710049 China Department of mechani.al Engi.eeri.g Esfarayen University of Technology Esfarayen North Khorasan lran Department of Renewable Energi.s Engi.eeri.g Faculty of New Sdences & Technologies University of Tehran Tehran lran Department of mechani.al Engi.eeri.g Babol University of Technology Babol lran

i. thi. paper, response surface methodology(RSm) based on central composi.e desi.n(CCD) i. appli.d to obtai. an opti.i.ati.n desi.n for the fuel rod's di.meter and di.tance cooled by turbulent Al_2O_3–water nanoflui. for a typi.al pressuri.ed water reactor(PWR). Fuel rods and nanoflui. flow between them are si.ulated 3D usi.g computati.nal flui. dynami.s(CFD) by ANSYS-FLUNET package software. The RNG k–ε model i. used to si.ulate turbulent nanoflui. flow between the rods. The effect of di.ferent nanoparti.les concentrati.n i. also i.vesti.ated on the Nusselt number from heat transfer effi.i.ncy vi.w poi.t. Results reveal that when di.tance parameter(a) i. i. the mi.i.um level and di.meter parameter(r) i. i. the maxi.um possi.le level, cooli.g the rods wi.l be better due to hi.her Nusselt number i. thi. si.uati.n. Also, usi.g the di.ferent nanoparti.les on the cooli.g process confi.ms that Al_2O_3 averagely 17% and Ti._2 10% i.prove the Nusselt numbers.

关键词： Opti.i.ati.n Fuel rods Nanoflui. Pressuri.ed water reactor

FRACTi.NAL-STEP Fi.i.E ELEmENT mETHOD FOR CALCULATi.N OF 3-D FREE SURFACE PROBLEm USi.G LEVEL SET mETHOD

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Journal of Hydrodynami.s 2006年第6期18卷 742-747页

作者： ZHAO Lan-hao Li.Tong-chun WANG Li.g HERREROS m. i. PASTOR m. College of Water Conservancy and Hydropower Engi.eeri.g Hohai University Naniing 210098 China Anhui.Survey and Desi.n i.sti.ute of Water Conservancy and Hydropower Hefei 230022 China CEDEX and E.T.S. de Cami.os Madrid Spain

A two-step Taylor-Galerki. fracti.nal-step fi.i.e element method, whi.h i. of second order accuracy i. space and ti.e, was proposed for the three-di.ensi.nal free surface problem. Wi.h thi. method, the i.termedi.te veloci.y was expli.i.ly obtai.ed by neglecti.g pressure gradi.nt term, and then the veloci.y was corrected by addi.g the effects of pressure once the pressure fi.ld had been obtai.ed from the pressure Poi.son equati.n. The level set approach was appli.d to track i.pli.i.ly the free surface. i. order to track the free surface, the transport equati.n of the level set functi.n was solved at each ti.e step and the level set functi.n i. rei.i.i.li.ed through i.erati.n to mai.tai. i. as a di.tance functi.n. The governi.g equati.ns of the system were di.creti.ed by the two- step Taylor-Galerki. method, whi.h i. of hi.h-order accuracy and easy to be used. The vali.i.y and reli.bi.i.y of thi. method i. thi. arti.le were proved by two numeri.al examples.

关键词： level set free surface two steps Taylor-Galerki. fracti.nal step FEm

Nonli.ear forced vi.rati.n i. a subcri.i.al regi.e of a porous functi.nally graded pi.e conveyi.g flui. wi.h a retai.i.g cli.

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Appli.d mathemati.s and mechani.s(Engli.h Edi.i.n) 2025年第1期46卷 101-122页

作者： m.GHOLAmi.m.EFTEKHARi Department of mechani.al Engi.eeri.g Shahid Bahonar University of Kerman

Thi. study exami.es the nonli.ear behavi.rs of a clamped-clamped porous pi.e made of a functi.nally graded materi.l(FGm) that conveys flui.s and i. equi.ped wi.h a retai.i.g cli., focusi.g on pri.ary resonance and subcri.i.al dynami.s. The nonli.ear governi.g equati.ns for the FGm pi.e are deri.ed by the extended Hami.ton's pri.ci.le, and subsequently di.creti.ed through the appli.ati.n of the Galerki. *** di.ect method of multi.scales i. then used to solve the deri.ed equati.ns. A thorough analysi. of vari.us parameters, i.cludi.g the cli. sti.fness, the power-law i.dex, the porosi.y, and the cli. locati.n, i. conducted to gai. a comprehensi.e understandi.g of the system's nonli.ear dynami.s. Through the analysi. of the fi.st natural frequency, the study hi.hli.hts the i.fluence of the flow veloci.y and the cli. sti.fness, whi.e the compari.ons wi.h metalli. pi.es emphasi.e the role of FGm composi.i.n. The exami.ati.n of the forced response curves reveals saddle-node bi.urcati.ns and thei. dependence on parameters such as the detuni.g parameter and the power-law i.dex, offeri.g valuable i.si.hts i.to the system's nonli.ear resonant behavi.r. Furthermore, the frequency-response curves i.lustrate the hardeni.g nonli.eari.i.s i.fluenced by factors such as the porosi.y and the cli. sti.fness, reveali.g nuanced effects on the system response and resonance characteri.ti.s. Thi. comprehensi.e analysi. enhances the understandi.g of nonli.ear behavi.rs i. FGm porous pi.es wi.h a retai.i.g cli., provi.i.g key i.si.hts for practi.al engi.eeri.g appli.ati.ns i. system desi.n and opti.i.ati.n.

关键词： Galerki. methods