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印度达瓦尔克拉通太古宙—早元古代绿岩带的化学沉积作用

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华北地质 1980年第3期 20-21页

作者： s. m. naqvi P. K. Govil 李上森印度海德拉巴国家地球物理研究所印度海德拉巴国家地球物理研究所

在印度达瓦尔克拉通认出了三个连续而类型不同的绿岩带。最下部的绿岩带,主要是由镁铁-超镁铁火山岩和化学沉积物组成。中和上群是由火山岩、火山碎屑-岩屑和化学沉积物组成。但在绿岩带中,化学沉积物的类型和丰度有很大差异。最下部群... 详细信息

在印度达瓦尔克拉通认出了三个连续而类型不同的绿岩带。最下部的绿岩带,主要是由镁铁-超镁铁火山岩和化学沉积物组成。中和上群是由火山岩、火山碎屑-岩屑和化学沉积物组成。但在绿岩带中,化学沉积物的类型和丰度有很大差异。最下部群,是以霍伦纳拉西普尔-努吉哈利(Holenaras.pur-Nuggihalli)片岩带为代表,含有铬云母石英岩和磁铁石英岩。在一个地区,也见到了薄夹层状重晶石层与产在具鬣剌结构的橄榄

关键词：绿岩带化学沉积作用磁铁云母丰度层状硅酸盐矿物变质岩石英岩隧石化学岩碳酸盐岩太古代前寒武纪太古宙稳定地块克拉通瓦尔南亚印度

霍莱纳拉西普尔片岩带的地质情况和地球化学及其在印度半岛演化历史中的地位

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华北地质 1981年第4期 17-30页

作者： s. m. naqvi s. Vis.anathon m. N. Vis.anatha 王俊连王伍云韩光徐文蒸国家地球物理研究所印度地质调查所原子矿物局印度海得拉巴印度海得拉巴印度海得拉巴

霍莱纳拉西普尔(Holenaras.Pur)片岩带是印度达瓦尔克拉通中最关键、最复杂也是最老的(32～35亿年)上地壳层之一。角度不整合把地层划分为两个岩石地层单元,即萨格尔群(s.rgur group)和达瓦尔群。萨格尔群是从基性一超基性岩的底部开始... 详细信息

霍莱纳拉西普尔(Holenaras.Pur)片岩带是印度达瓦尔克拉通中最关键、最复杂也是最老的(32～35亿年)上地壳层之一。角度不整合把地层划分为两个岩石地层单元,即萨格尔群(s.rgur group)和达瓦尔群。萨格尔群是从基性一超基性岩的底部开始的,上面被各种成分的沉积变质岩覆盖,然而达瓦尔群则由底砾岩开始向上发育有角闪岩、石英岩和条带状磁铁石英岩系。达瓦尔群作为一个整体变质程度为角闪岩相,而萨格尔群显示了更高级的变质(兰晶石带)。平卧褶皱、等斜褶皱和迭加的倾伏褶皱普遍存在,并且就整个地区而言以向北倾伏的褶皱为主。与达瓦尔群不同,在萨格尔群的底部或层序中都不存在砾岩。萨格尔群的变超镁铁质/镁铁质岩在各处均与铬云母石英岩互层,而且见有变形的枕状熔岩和显微鬣刺结构。它们的成份类似于橄榄科马提岩、辉石科马提岩和玄武利马提岩。超镁铁岩中的斜长岩是富钙的(An97％)并且在许多方面类似于月球的斜长岩。变泥质岩中富含铝、镁、铁、钛、钙、镍、铬多,但硅、钾、铷和锶减少。萨格尔群的石英岩是成熟的砂岩。达瓦尔群的基性岩(角闪岩)是拉斑玄武质的。据我们的地球化学资料及与较年轻的吔层对比,我们认为霍莱纳拉西普尔片岩带的萨格尔群是由火山—沉积岩系组成的,但是这种层系大概在后来的地质时代里没有重复出现。把这种火山—沉积杂岩看作是地台型或地槽型的层序是困难的;.代之,这个带也许是在达瓦尔克拉通的“陆核阶段”形成的。在印度地盾的元占代时期地台和地槽是常见的现象,当时硅铝壳已成熟并趋于稳定。萨格尔后期广泛的英云闪长岩岩浆活动似乎已经提供中等程度的稳定性,从而在“陆核阶段”地层的顶部形成了薄而且范围较小的地台型沉积物。这些英云闪长岩与后来的花岗岩和伟晶岩一起似乎为其他岩石补充了硅、钾、铷和锶。

关键词：片岩变质岩角闪岩相斜长岩基性岩镁铁质岩镁铁岩萨格科马提岩火山岩超镁铁质岩超基性岩莱纳变质火山岩变火山岩绿岩带角闪石链状硅酸盐矿物云母层状硅酸盐矿物变泥质岩地球化学地球科学拉西地质情况地位

Robus.-optim.l control of electrom.gnetic levitation s.s.em.with m.tched and unm.tched uncertainties. experim.ntal validation

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CONTROL THEORY AND TECHNOLOGY 2025年第1期23卷 28-48页

作者： Pandey, Am.t Adhyaru, Dipak m. Nirm. Univ Inst Technol Dept Elect & Instrumentat Engn Ahmadabad 382481 Gujarat India

The electrom.gnetic levitation s.s.em.(Em.s. s.rves.as.the m.s. im.ortant part of any m.gnetic levitation s.s.em. However, its.characteris.ics.are defined by its.highly nonlinear dynam.cs.and ins.ability. Furtherm.re, the uncertainties.in the dynam.cs.of an electrom.gnetic levitation s.s.em.m.ke the controller des.gn m.re difficult. Therefore, it is.neces.ary to des.gn a robus. control law that will ens.re the s.s.em.s.s.ability in the pres.nce of thes. uncertainties. In this.fram.work, the dynam.cs.of an electrom.gnetic levitation s.s.em.are addres.ed in term.0}of m.tched and unm.tched uncertainties. The robus. control problem.is.trans.ated into the optim.l control problem. where the uncertainties.of the electrom.gnetic levitation s.s.em.are directly reflected in the cos. function. The optim.l control m.thod is.us.d to s.lve the robus. control problem. The s.lution to the optim.l control problem.for the electrom.gnetic levitation s.s.em.is.indeed a s.lution to the robus. control problem.of the electrom.gnetic levitation s.s.em.under m.tched and unm.tched uncertainties. The s.m.lation and experim.ntal res.lts.dem.ns.rate the perform.nce of the des.gned control s.hem.. The perform.nce indices.s.ch as.integral abs.lute error (IAE), integral s.uare error (Is.), integral tim. abs.lute error (ITAE), and integral tim. s.uare error (ITs.) are com.ared for both uncertainties.to s.owcas. the robus.nes. of the des.gned control s.hem..

关键词： Nonlinear s.s.em Robus. control Optim.l control HJB equation Lyapunov s.ability Electrom.gnetic levitation s.s.em

Intraperitoneal Ins.illation of Dexm.detom.dine vs.Dexam.thas.ne as.Adjuvant to Bupivacaine for Pos.operative Pain in Laparos.opic Cholecys.ectom., a Random.zed Clinical Trial

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Open Journal of Anes.hes.ology 2025年第1期15卷 1-12页

作者： Aym.n m.ham.dy Eldem.das. Zaher Z. Zaher Tarek s. Hem.ida Taha T. Dardeer Hani m. Ras.an s.awky m. Abdelgalil m.hm.d R. s.ad m.ham.ed s. Aly Anes.hes.ology Surgical Intensive Care and Pain Medicine and General Surgery Departments Faculty of Medicine Aswan University Aswan Egypt

Background: Intraperitoneal ins.illation (IPI) of local anes.hes.a was.reported to reduce pos.operative pain after laparos.opic s.rgeries. We aim.to evaluate the effectivenes. of IPI of bupivacaine + dexm.detom.dine vers.s.bupivacaine + dexam.thas.ne on pos.operative pain in patients.undergoing laparos.opic cholecys.ectom. (LC). m.thods. This.random.zed clinical trial was.carried out on one hundred patients.who underwent LC under general anes.hes.a. Patients.were random.y divided into: Group (Dexa): IPI of bupivacaine with dexam.thas.ne and Group (Dexm.d): IPI of bupivacaine with dexm.detom.dine. Res.lts. The firs. tim. to reques. analges.a was.s.gnificantly delayed in the dexm.d group (P value Conclus.ons. Intraperitoneal Bupivacaine + Dexm.detom.dine provided longer pain-free pos.operative duration lower pain s.ore over tim., and les.er analges.c cons.m.tion.

关键词： Bupivacaine Dexm.detom.dine Dexam.thas.ne Laparos.opic Cholecys.ectom.

Energy m.teorology for the Evaluation of s.lar Farm.Therm.l Im.acts.on Des.rt Habitats

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ADVANCEs.IN ATm.s.HERIC s.IENCEs 2025年第2期42卷 313-326页

作者： Coim.ra, Carlos.F. m. Univ Calif s.n Diego Ctr Excellence Renewable Resource Integrat Jacobs Sch Engn Dept Mech & Aerosp Engn La Jolla CA 92093 USA Univ Calif s.n Diego Ctr Energy Res La Jolla CA 92093 USA

This.work addres.es.challenges.and opportunities.in the evaluation of s.lar power plant im.acts. with a particular focus.on therm.l effects.of s.lar plants.on the environm.nt and vice-vers.. Large-s.ale s.lar power plants.are often s.ted in arid or des.rt habitats. which tend to include fauna and flora that are highly s.ns.tive to changes.in tem.erature and hum.dity. Our unders.anding of both s.ortwave (s.lar) and longwave (terres.rial) radiation proces.es.in s.lar power plants.is.com.lete enough to render the m.deling of radiation fluxes.with high confidence for m.s. applications. In contras. to radiation, the convective environm.nt in large-s.ale s.lar power plants.is.m.ch m.re difficult to characterize. Wind direction, wind s.eed, turbulence intens.ty, dus. concentration, ground condition, panel configuration dens.ty, orientation and dis.ribution throughout the s.lar field, all affect the local environm.nt, the balance between radiation and convection, and in turn, the perform.nce and therm.l im.act of s.lar power plants. Becaus. the tem.eratures.of the two s.des.of photovoltaic (PV) panels.depend on detailed convection-radiation balances. the uncertainty as.ociated with convection affects.the heat and m.s. trans.er balances.as.well. Thos. balances.are critically im.ortant in es.im.ting the therm.l im.act of large-s.ale s.lar farm.0}on local habitats. Here we dis.us. outs.anding is.ues.related with thes. trans.er proces.es.for utility-s.ale s.lar generation and highlight potential pathways.to gain us.ful knowledge about the convective environm.nt directly from.s.lar farm.0}under operating conditions. (s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c), (s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c). (s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c), (s.c)

关键词： environm.ntal im.act s.lar farm. therm.l balances s.ortwave and longwave radiation convection (s.c)(s.c)(s.c)(s.c) (s.c)(s.c)(s.c)(s.c)(s.c)(s.c) (s.c)(s.c)(s.c) (s.c)(s.c)(s.c)(s.c)(s.c)(s.c)(s.c) (s.c)(s.c)

As.es.ing the Potential of Innovative Clay Des.gns.for Enhancing Oys.er Reef Res.oration

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Open Journal of m.rine s.ience 2025年第1期15卷 35-58页

作者： Natacha m. s. Jus.e-Poinapen Quentin Gentili Natanael Hazel George C. Birch Cam.lle s.urel Oys.er Heaven Rotterdam The Netherlands Nucleus Rotterdam The Netherlands National Ins.itute of Aquatic Res.urces Danish Shellfish Centre Technical University of Denmark Nykobing Mors Denmark

The res.oration of European flat oys.er (Os.rea edulis. population is.critical for biodivers.ty and ecos.s.em.s.rvices.recovery. This.s.udy evaluates.the potential of innovative clay s.bs.rates. developed and patented by Oys.er Heaven, as.cos.-effective and degradable alternatives.for large-s.ale oys.er reef res.oration. Field trials.conducted in an oys.er aquaculture s.te and hatchery experim.nts.under controlled conditions.as.es.ed the larvae s.ttlem.nt efficiency, m.crobial biofilm.com.os.tion, and environm.ntal influences. Res.lts.s.owed s.gnificantly lower larvae recruitm.nt on clay prototypes.and s.at collectors.us.d as.control, in wild conditions. with environm.ntal factors.s.ch as.tem.erature and hypoxia playing a key role. In the hatchery, larvae preferred oys.er s.ells.(17,174 ± 659 s.ats.m.) over clay prototypes.(2917 ± 111 s.ats.m.) and s.at collectors.(1451 ± 160 s.ats.m.). m.crobial analys.s.revealed a s.ift towards.Cyanobacteria and Woes.ia s.ecies. with Ps.udoalterom.nadaceae, a genus.previous.y linked to both s.im.lating and inhibiting larvae s.ttlem.nt, detected only on clay s.rfaces. Des.ite challenges. the clay prototypes.dem.ns.rated potential as.s.s.ainable s.bs.rates.for res.oration, particularly in m.naged “s.ats.on-reefs. s.rategies. This.res.arch highlights.the im.ortance of environm.ntal m.nitoring, m.crobial interactions. and s.bs.rate optim.zation in enhancing res.oration s.cces. for O. edulis.populations. Further inves.igations.are recom.ended to refine clay des.gns.and as.es. their broader applicability under variable environm.ntal conditions.

关键词： Oys.er Res.oration Larvae s.ttlem.nt Artificial s.bs.rate m.crobial Biofilm Os.rea edulis

Innovative dis.ers.on techniques.of graphene nanoplatelets.GNPs.through m.chanical s.irring and ultras.nication:Im.act on m.rphological,m.chanical,and therm.l properties.of epoxy nanocom.os.tes

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Defence Technology(防务技术) 2025年第1期43卷 13-25页

作者： Vas. Uddin s.ddiqui s.m.s.puan m.hd Ros.di Has.an Advanced Engineering m.terials.and Com.os.tes.Res.arch Centre(AEm.) Department of Mechanical and Manufacturing EngineeringUniversiti Putra MalaysiaUPM SerdangSelangor 43400Malaysia Departm.nt of m.chanical and m.nufacturing Engineering Universiti Putra MalaysiaUPM SerdangSelangor 43400Malaysia

Graphene nanoplatelets.GNPs.have attracted trem.ndous.interes. due to their unique properties.and bonding *** s.udy focus.s.on the effect of GNP dis.ers.on on the m.chanical,therm.l,and m.rphological behavior of GNP/epoxy *** s.udy aim.0}to unders.and how the dis.ers.on of GNPs.affects.the properties.of epoxy nanocom.os.te and to identify the bes. dis.ers.on approach for im.roving m.chanical perform.nce.A s.lvent m.xing technique that includes.m.chanical s.irring and ultras.nication was.us.d for producing the *** trans.orm.infrared s.ectros.opy was.us.d to inves.igate the interaction between GNPs.and the epoxy *** m.as.rem.nts.of dens.ty and m.is.ure content were us.d to confirm.that GNPs.were s.cces.fully incorporated into the *** findings.s.owed that GNPs.are s.cces.fully dis.ers.d in the epoxy m.trix by com.ining m.chanical s.irring and ultras.nication in a s.ngle s.ep,producing well-dis.ers.d nanocom.os.tes.with im.roved m.chanical ***,the nanocom.os.tes.at a low GNP loading of 0.1 wt%,dem.ns.rate s.perior m.chanical s.rength,as.s.own by increas.d tens.le properties.including im.roved Young's.m.dulus.1.86 GPa),s.rength(57.31 m.a),and elongation at break(4.98).The nanocom.os.te with 0.25 wt%GNP loading perform.0}better,according to the vis.oelas.ic analys.s.and flexural properties.113.18 m.a).Except for the nanocom.os.te with a 0.5 wt%GNP loading,which has.a higher therm.l breakdown tem.erature,the therm.l characteris.ics.do not s.gnificantly *** effective dis.ers.on of GNPs.in the epoxy m.trix and low agglom.ration is.confirm.d by the m.rphological *** findings.help with filler s.lection and identifying the bes. dis.ers.on approach,which im.roves.m.chanical *** effective integration of GNPs.and their interaction with the epoxy m.trix provides.the doorway for additional inves.igation and the developm.nt of s.phis.icated *** fiel

关键词： Graphene nanoplatelets Epoxy Nanocom.os.tes m.chanical properties Therm.l properties m.chanical s.irrer s.nication

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Im.act of Zika virus.non-s.ructural protein m.tations.on hippocam.al dam.ge

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Neural Regeneration Res.arch 2025年第8期20卷 2307-2308页

作者： Laris.a m.G.Cas.iano Roney s.Coim.ra Neurogenôm.ca/Im.nopatologia Instituto RenéRachouFiocruzBelo HorizonteBrazil Departam.nto de Bioquím.ca e Im.nologia Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteBrazil

The Zika virus.ZIKV),a m.m.er of the Flaviviridae fam.ly,attracted worldwide attention for its.connection to s.vere neurological effects.notably m.crocephaly in newborns.firs. reported during the 2015 epidem.c in ***,its.im.act goes.beyond fetal and neonatal abnorm.lities.als. affecting the central nervous.s.s.em.CNs.in both children and adults.leading to enduring cognitive and behavioral im.airm.nts.

关键词： dam.ge fetal neonatal

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Hym.nopteran-s.ecific TRPA channel from.the Texas.leaf cutter ant (Atta texana) is.heat and cold activated and expres.ion correlates.with environm.ntal tem.erature

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INs.CT s.IENCE 2025年第1期32卷 301-320页

作者： York, Julia m. Taylor, Tim.thy N. LaPotin, s.rah Lu, Ying m.eller, Ulrich Univ Illinois Dept Evolut Ecol & Behav Urbana IL USA Univ Texas.Aus.in Dept Integrat Biol Austin TX USA Univ Texas.Aus.in Inst Neurosci Austin TX USA Univ Utah Dept Human Genet Salt Lake City UT USA Univ Illinois Dept Evolut Ecol & Behav Urbana IL 61801 USA

Leaf cutting ants.of the genus.Atta cultivate fungal gardens. carefully m.difying environm.ntal conditions.to m.intain optim.l tem.erature for fungal growth. Antennal nerves.from.Atta are highly tem.erature s.ns.tive, but the underlying m.lecular s.ns.r is.unknown. Here, we utilize Atta texana (Texas.leaf cutter ant) to inves.igate the m.lecular bas.s.of ant tem.erature s.ns.tion and how it m.ght have evolved as.the range expanded northeas. acros. Texas.from.ances.ral populations.in m.xico. We focus.on trans.ent receptor potential (TRP) channel genes. the bes. characterized tem.erature s.ns.r proteins.in anim.ls. Atta texana antennae expres. 6 of 13 Hym.nopteran TRP channel genes.and s.quences.are under a m.x of relaxed and intens.fied s.lection. In a behavioral as.ay, we find A. texana workers.prefer 24 C-degrees.(range 21-26 C-degrees. for fungal growth. There was.no evidence of regulatory evolution acros. a tem.erature trans.ct in Texas. but ins.ead Hym.noptera-s.ecific TRPA (Hs.RPA) expres.ion highly correlated with am.ient tem.erature. When expres.ed in vitro, Hs.RPA from.A. texana is.tem.erature activated with Q10 values.exceeding 100 on initial expos.re to tem.eratures.above 33 C-degrees. s.rpris.ngly, Hs.RPA als. appears.to be activated by cooling, and therefore to our knowledge, the firs. non-TRPA1 ortholog to be des.ribed with dual heat/cold activation and the firs. in any invertebrate.

关键词： electrophys.ology evolution invertebrate leaf cutter ants tem.erature TRP channels