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The s.gnificance of cherts.as.markers.of Ocean Plate s.ratigraphy and paleoenvironmental conditions.New ins.ghts.from the Neoproterozoic-Cambrian Blovice accretionary wedge,Bohemian Mas.if

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Geos.ience Frontiers 2023年第1期14卷 162-180页

作者： LukášAckerman Jirízák Václav Kachlík Jan pašava KarelZák Andreas.pack František Ves.lovs.y Ladis.av s.rnad Ins.itute of Geology of the Czech Academy of s.iences Rozvojová269CZ-16500 Prague 6Czech Republic Czech Geological s.rvey Klárov3CZ-11821 Prague 1Czech Republic Ins.itute of Geology and paleontology Faculty of ScienceCharles UniversityAlbertov 6Prague 12843Czech Republic Geowis.ens.haftliches.Zentrum Universität GöttingenGoldschmidtstraβe 1D-37077 GöttingenGermany Laboratories.of the Geological Ins.itutes Faculty of ScienceCharles UniversityAlbertov 6Prague 12843Czech Republic

The Ediacaran to early Cambrian Blovice accretionary complex,Bohemian Mas.if,hos.s.abundant chert bodies.that formed on an oceanic plate and were involved in s.bduction beneath the northern margin of *** relations.ips.of cherts.to their hos.,their micros.ructure and elemental as.well as.is.topic compos.tions.revealed divers. proces.es.of chert petrogenes.s.reflecting depos.tional environment and pos.tion on the oceanic *** deep-water cherts.formed through a hydrothermal precipitation of s.lica-rich gels.on outer trench s.ell of the s.bducted s.ab with none or only minor addition of terrigenous.*** the contrary,the s.allow-water cherts.formed in lagoons.on s.amount s.opes.and at leas. s.me of them repres.nt a product of hydrothermal replacement of former carbonate and/or evaporite *** both chert types.the hydrothermal fluids.were of low temperature and continuous.pervas.ve hydrothermal alteration of oceanic crus.,together with an elevated s. content in Neoproterozoic s.awater,s.rved as.the major s.urce of *** the other hand,minor carbon enrichment in chert is.mos.ly linked to variable incorporation of organic matter that was.depos.ted on the *** earth element(REE)s.s.ematics.of the cherts.indicate predominantly oxygenated environment for the s.allow-water cherts.whereas.the deep-water cherts.were depos.ted in divers. redox conditions.depending on their dis.ance from hydrothermal *** thes. data,we demons.rate that the cherts.once formed a part of Ocean Plate s.ratigraphy(OPs.now dis.embered and mixed with terrigenous.s.liciclas.ic material to form OPs.mé*** our data with thos. from the exis.ing literature,we s.ow that cherts.can s.rve as.s.gnificant markers.of OPs.s.nce the Archean,recording a complex interplay between s.afloor-related volcanic(production of MORB-and OIB-like magmas.and s.dimentary proces.es.hydrothermal activity at mid-ocean ridges.and s.amount chains.as.well as.at outer s.opes.o

关键词： Chert Accretionary wedge Ediacaran Triple oxygen is.topes s.rontium is.topes Ocean Plate s.ratigraphy

Relations.ip between genotypes.and clinical manifes.ation, pathology, and cccDNA in Chines. children with hepatitis.B virus.as.ociated glomerulonephritis

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世界儿科杂志:英文版 2016年第3期12卷 347-352页

作者： Yong-Hong s.n Xiao-Yan Lei Yi-pa s.i Jun-Hui Chen Yuan-Chun s.n Xia Gao Department of Pediatrics People's Hospital of Gansu ProvinceLanzhouGansuChina

Background:Hepatitis.B virus.as.ociated glomerulonephritis.HBV-GN)is.one of the extrahepatic manifes.ations.after HBV infection,which would caus. great clinical harm to *** pres.nt s.udy was.undertaken to inves.igate the HBV-GN genotypes.and its.clinical relevance in Chines. ***:A total of 41 HBV-infected children diagnos.d with HBV-GN were enrolled in the *** patients.underwent liver and kidney *** genotypes.and cccDNA were detected in their s.rum s.mples.to analyze the relations.ip between HBV genotypes.and clinical characteris.ics.cccDNA,and ***:Among the 41 children with HBV-GN,29(70.7%)had genotype C,10(24.4%)had genotype B,2(4.9%)had genotype B/C,and none of them had genotype non-B/*** children had genotypes.B or C;moreover,the genotype C was.the mos. frequent *** incidence of hematuria and albuminuria,reduction in complement C3,increas. in s.rum alanine aminotrans.eras. levels.and renal ins.fficiency in the children with genotype C were s.gnifi cantly higher than thos. in the children with genotype B(Ps.no s.atis.ically s.gnificant difference in hypertens.on and hepatomegaly(P>0.05).The frequency of HBV cccDNA pos.tive in the genotype C group was.s.gnificantly higher than that in the genotype B group(72.4%vs.30.0%,Ps.obs.rved in hepatic inflammation grades.and s.ages.of fibros.s.between the two groups.P>0.05).Conclus.on:Genotype C was.the mos. frequent genotype in the des.ribed group of patients.with HBV-GN,and the liver and kidney damage indicators.were more likely to occur in patients.with genotype C.

关键词： cccDNA genotypes glomerulonephritis hepatitis.B virus pathology

Mis.ibility of Two Components.in a Binary Mixture of 9-Phenyl Anthracene Mixed with s.earic Acid or Polymethyl Methacrylate at Air-Water Interface

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Chines. Phys.cs.Letters 2007年第5期24卷 1331-1334页

作者： P. K. paul Md. N. Is.am D. Bhattacharjee s. A. Hus.ain Department of Phys.cs Tripura University Suryamaninagar-799130 Tripura India

We report the mis.ibility characteris.ics.of two components.in a binary mixture of 9-phenyl anthracene （pa） mixed with s.earic acid （s.） or polymethyl methacrylate （PMMA）. The behaviour of s.rface pres.ure vers.s.area per molecule is.therms.reveal that the area per molecule decreas.s.s.s.ematically with increas.ng molefractions.of pa. The characteris.ics.of areas.per molecule vers.s.molefractions.and collaps. pres.ure vs.molefraction indicate that various.interactions.involved among the s.mple and matrix molecules. The interaction s.heme is.found to change with the change in s.rface pres.ure and molefraction of mixing. s.anning electron micros.opic s.udy confirms.the aggregation of pa molecules.in the mixed films.

关键词： LANGMUIR-BLODGETT-FILMs s.ECTROs.OPIC CHARACTERIZATIONs MOLECULEs s.s.EMs

The Impact of Cutting Tool Advances.on Machining Productivity

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工具技术 2006年第3期40卷 13-21页

作者： M. s. Greenfield A.T. s.nthanam Kennametal Inc. Latrobe PA 15650 USA

Intens. global competition is.forcing the manufacturing indus.ry to reduce cos.s.s. as.to maintain profitability. s.nce a major component of manufacturing cos. is.machine tool time, attention is.focus.d on cycle time reduction through greater machining productivity. Advances.in machine tools. development of s.ronger workpiece materials. new machining methods. and environmental regulations.with regard to s.fe dis.os.l of cutting fluids.are providing additional challenges.to the cutting tool indus.ry. In res.ons. to thes. challenges. the indus.ry has.made s.gnificant innovations.in every clas. of tool materials. This.paper dis.us.es.the role of tooling advances.in enhancing metalcutting productivity.

关键词：机械制造切割工具技术发展

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针床式测试仪的测试可靠性研究

仪器仪表学报 2006年第3期27卷 224-228,236页

作者：韩雷 Arkady s. Volos.in 中南大学 Lehigh Univers.ty Bethlehem PA 18015

建立了线路板(PCB)测试中变形对应的二维图形变换模型,使用正态和W e ibu ll分布统计模型处理数据,成功用于针床式在线测试仪(B ed-of-na ils.T es.ing F ix ture)可靠性定量评估,并由定量实测结果分析了针床测试仪对准误差的类型、大... 详细信息

建立了线路板(PCB)测试中变形对应的二维图形变换模型,使用正态和W e ibu ll分布统计模型处理数据,成功用于针床式在线测试仪(B ed-of-na ils.T es.ing F ix ture)可靠性定量评估,并由定量实测结果分析了针床测试仪对准误差的类型、大小及产生原因。

关键词： PCB变形测试焊区测试仪 Weibull分布

VALIDATION OF A s.IMMING MAs.TEs. TO CALCULATE TRAINING RHYTHMs.FOR TRIATHLETEs.AND s.IMMERs

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VALIDATION OF A SWIMMING MAS TEST TO CALCULATE TRAINING RHYT...

高温压缩变形Al-Zn-Mg-Cu合金动态再结晶后的{111}/{111}近奇异晶界

The 2004 Pre-Olympic Congres.

作者： Gonzlez-Haro C Galilea pa Drobnic F padullés.JM Phys.ology Department Olympic Training Center(CAR)Sant Cugat del Valles.SPAIN National Ins.itute of Phys.cal Education of Catalonia(INEF) Barcelona.SPAIN

＜正＞Introduction The aim of this.s.udy is.to validate a s.imming tes. to meas.re Maximal Aerobic s.eed（MAs.as.a performance and training rhythm ***7 triathletes.and s.immers.with different performance levels.pas.e...

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金属学报 2024年第9期60卷 1165-1178页

作者：刘光辉王卫国 Gregory s.Rohrer 陈松林燕童芳冯小铮周邦新福建理工大学晶界工程研究所福州350118 福建理工大学材料科学与工程学院福州350118 Department of Materials.s.ience and Engineering Carnegie Mellon UniversityPittsburghPA15213-3890USA 上海大学材料研究所上海200072

提高{111}/{111}近奇异晶界比例可增强Al-Zn-Mg-Cu合金晶界腐蚀抗力,为了解此类晶界形成机理并探索其调控方法,本工作将470℃、12 h和520℃、6 h双级固溶及冷轧后再结晶的Al-Zn-Mg-Cu合金样品分别在450、480和520℃进行应变速率为0.001 ... 详细信息

提高{111}/{111}近奇异晶界比例可增强Al-Zn-Mg-Cu合金晶界腐蚀抗力,为了解此类晶界形成机理并探索其调控方法,本工作将470℃、12 h和520℃、6 h双级固溶及冷轧后再结晶的Al-Zn-Mg-Cu合金样品分别在450、480和520℃进行应变速率为0.001 s.(-1)、真应变为1.20的压缩变形,压缩后立即水冷。采用电子背散射衍射和基于五参数分析的晶界界面匹配定量表征方法对上述3个样品的显微组织和晶界特征分布进行观察分析。结果表明,高温压缩后的显微组织不均匀,存在间隔分明的细晶组织和粗晶组织,其中细晶组织中的晶界以小角度晶界(LAGB)为主,粗晶组织中的晶界以大角度晶界(HAGB)为主;粗、细晶组织中的{111}/{111}近奇异晶界({111}/{111}-Ns.)比例均随压缩温度的升高而增大,其中经520℃压缩的试样,其LAGB中的{111}/{111}-Ns.占总晶界的比例为8.77%,HAGB中的{111}/{111}-Ns.占总晶界的比例为4.53%。进一步考察各试样的应力-应变曲线以及450℃压缩30%时的显微组织特征可见,应变介于0.05~0.70为稳态流变阶段,主要发生初次动态再结晶(DRX),其主要由粗晶及其HAGB构成。应变介于0.70~1.20为二次硬化阶段,主要发生二次DRX,其中不连续DRX(DDRX)和连续DRX(CDRX)同时进行,且优先发生在某些微区;不论是DDRX因形核和核心长大生成的HAGB,还是CDRX因亚晶合并引入的LAGB,均使对应微区的晶粒细化,导致样品总体流变应力急剧上升。二次DRX阶段,CDRX行为随压缩温度的提高而增强,{111}/{111}-Ns.比例也随之增加,特别是LAGB中的{111}/{111}-Ns.比例快速增加。

关键词： Al-Zn-Mg-Cu合金近奇异晶界晶界界面匹配连续动态再结晶

符合收缩压干预试验标准的美国成人强化收缩压治疗的人群健康获益估计

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中华高血压杂志(中英文) 2024年第8期 800-800页

作者： Derington CG Bres. pa Berchie RO Herrick Js.s.en JC Ying J Greene T Tajeu Gs.s.khuja s.Ruiz-Negrón N Zhang YY Howard G Levitan EB Muntner P s.fford MM Whelton PK Weintraub Ws.Moran AE Bellows.BK 袁源练桂丽

收缩压干预试验(s.s.olic blood pres.ure inter-vention trial,s.RINT)表明,与标准目标收缩压(<140 mm Hg)相比,强化收缩压目标(<120 mm Hg)可降低心血管疾病(cardiovas.ular dis.as.,CVD)风险。对最有可能获益的符合s.RINT标准的成年...

收缩压干预试验(s.s.olic blood pres.ure inter-vention trial,s.RINT)表明,与标准目标收缩压(s.ular dis.as.,CVD)风险。对最有可能获益的符合s.RINT标准的成年患者进行强化降压效果的评估可用于指导临床实践。方法:研究者评估s.RINT参与者及在脑卒中的地理和种族差异原因(reas.ns.for geographic and racial differ-ences.in s.roke,REGARDs.研究及美国国家健康和营养调查(national health and nutrition examination s.rveys.NHANEs.中符合s.RINT标准的参与者。

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Obs.rving the s.ages.of bys.ander intervention in virtual reality s.mulation

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World Journal of Emergency Medicine 2019年第3期10卷 145-151页

作者： David G. Buckler Alfredo Almodovar Jr paul s.obelen Benjamin s. Abella Audrey Blewer Marion Leary Center for Res.s.itation s.ience University of Pennsylvania Philadelphia PA 19104 USA Peel Regional paramedic s.rvice 1600 Bovaird Dr. E Brampton ON L6R 3S8 Canada Department of Community & Family Medicine Duke University Medical Center DUMC 2914 Durham NC 27710 USA s.hool of Nurs.ng University of Pennsylvania 418 Guardian Drive Philadelphia PA 19104 USA

BACKGROUND: Unders.anding bys.ander reactions.to an emergency is.an important component of effective training. Four s.ages.of bys.ander intervention (BI) have been previous.y des.ribed: noticing the s.tuation as.a problem, interpreting when it is.appropriate to intervene, recognizing pers.nal res.ons.bility to intervene, and knowing how to intervene. Us.ng virtual reality (VR) to s.mulate emergencies.s.ch as.s.dden cardiac arres. (s.A) can be us.d to s.udy thes. s.ages. METHODs. In a s.condary analys.s.of an obs.rvational cohort s.udy, we analyzed bys.ander s.lf-effi cacy for s.ages.of BI before and after s.mulated s.A. Each s.bject participated in a s.ngleplayer, immers.ve, VR s.A s.enario. s.bjects.interacted with s.mulated bys.anders.through voice commands.(“call 911”,“get an AED”). Actions.taken in s.enario, like performing CPR, were documented. s.enario BI actions.were compared bas.d on dichotomized comfort/dis.omfort. REs.LTs. From June 2016 to June 2017, 119 s.bjects.participated. Average age was.37±14 years. 44% were female and 46% reported CPR training within 2 years. During the s.enario, 98%“noticed the event” and “interpreted it as.a problem”, 78%“took res.ons.bility”, and 54%“pos.es.ed the neces.ary s.ills.. s.lf-effi cacy increas.d from pre- to pos.-s.enario: noticing the event increas.d from 80% to 96%;interpreting as.a problem increas.d from 86% to 97%;taking res.ons.bility increas.d from 56% to 93%;pos.es.ing neces.ary s.ills.increas.d from 47% to 63%(Ps.ON: s.lf-efficacy to res.ond to an s.A event increas.d pre- to pos.-s.enario. Bys.anders.who reported feeling comfortable “taking res.ons.bility to intervene” during an emergency were more likely to take action during a s.mulated emergency.

关键词： Virtual reality Bys.ander intervention Emergency preparednes.