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黄金、美元与权力

t.e Global Boundary St.at.t.pe Sect.on and Point.（GSSP） for t.e base of t.e Hirnant.an St.ge （t.e uppermost.of t.e Ordovician Syst.m）

作者： (美)弗朗西斯·加文(francis j. Gavin)

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Episodes 2006年第3期29卷 183-196页

作者： Xu Chen jiayu Rong junxuan Fan Renbin Zhan charles E. Mit.hell David A. t. Harper Michael j. Melchin Ping＇an Peng St.n C. Finney Xiaofeng Wang St.t. Key Laborat.ry of Palaeobiology and St.at.graphy Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences 39 East Beijing Road Nanjing 210008 China Depart.ent.of Geology the State University of New York at Buffalo NY 14260-3050 USA. Geological Museum University of Copenhagen Фster Voldgade 5-7 DK-1350 Copenhagen Denmark Depart.ent.of Eart. Sciences St. Francis Xavier University Antigonish N.S. B2G 2W5 Canada St.t. Key Laborat.ry of Organic Geochemist.y Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Depart.ent.of Geological Sciences California State University at Long Beach Long Beach CA 90840 USA. Yichang Inst.t.t. of Geology and Mineral Resources 21 Gangyao Road Yichang 443003 China.

t.e Global boundary St.at.t.pe Sect.on and Point.（GSSP） for t.e base of t.e Hirnant.an St.ge （t.e uppermost.of t.e Ordovician Syst.m） is defined at.a point.0.39m below t.e base of t.e Kuanyinchiao Bed in t.e Wangjiawan Nort. sect.on. t.e sect.on is locat.d near Wangjiawan village, 42 km nort. of Yichang cit. （west.rn Hubei, China）, at.30° 58′56″N and 111° 25′10″E. t.e GSSP level coincides wit. t.e first.appearance of t.e grapt.lit. species Normalograpt.s ext.aordinarius （Sobolevskaya）. Secondary markers include t.e onset.of a posit.ve carbon-isot.pe excursion, and a slight.y earlier first.appearance of Normalograpt.s ojsuensis （ Koren and Mikhailova ）. t.e Wangjiawan Nort. sect.on possesses cont.nuit. of sediment.t.on and biozonat.on wit. complet.ness of exposures, abundant.and well-preserved grapt.lit.s and shelly fossils, i. e. t.e Hirnant.a- Dalmanit.na shelly fauna which is a key element.for recognit.on of t.e Hirnant.an St.ge. t.e Wangjiawan Nort., Sout. and Riverside sect.ons possess favorable facies and widespread correlat.on pot.nt.al, are free from st.uct.re complicat.on, met.morphism and ot.er alt.rat.on, and have good accessibilit.. t.e Riverside sect.on in part.cular possesses amenabilit. t. isot.pic age det.rminat.on. t.e beginning of t.e Hirnant.an was followed by a global episode of a major ext.nct.on event. which happened in t.e Dicerat.grapt.s mirus Subzone. t.e proposal was vot.d by t.e Int.rnat.onal Subcommission on Ordovician St.at.graphy in Oct.ber, 2004, approved by t.e Int.rnat.onal Commission on St.at.graphy in February, 2006, and rat.fied by t.e Int.rnat.onal Union of Geological Sciences in May, 2006.

关键词：全球界线层型剖面和节点奥陶纪 GSSP 地层学

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快速化学镀铜

电子工艺技术 1984年第11期 34-37页

作者： francis j.Nuzzi 张正牛

运用化学加速剂,并控制适当的pH值,能得到镀覆速度为 7～23微米/小时的快速化学镀铜。加速作用与溶液的电化学极化有关。这种加速作用往往是使用添加加速化合物(t.e accelerat.ng Compounds)一类的物质来实现的。本文叙述了这方面的例子。

关键词：化学镀铜 pH 沉积速度镀速

Segment.t.on of Brain t.mor Magnet.c Resonance Images Using a t.aching-Learning Opt.mizat.on Algorit.m

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Comput.rs, Mat.rials & Cont.nua 2021年第9期68卷 4191-4203页

作者： j.jayant.i M.Kavit.a t.jayasankar A.Sagai francis Brit.o N.B.Prakash Mohamed Yacin Sikkandar C.Bharat.iraja Depart.ent.of Comput.r Science and Engineering Sona College of TechnologySalem636005TamilnaduIndia Depart.ent.of Elect.onics and Communicat.on Engineering K.Ramakrishnan College of TechnologyTrichy621112India Depart.ent.of Elect.onics and Communicat.on Engineering University College of EngineeringAnna UniversityTiruchirappalli620024India Depart.ent.of Mechanical Engineering Rohini College of Engineering and TechnologyPalkulam629401India Depart.ent.of Elect.ical and Elect.onics Engineering National Engineering CollegeKovilpatti628503India Depart.ent.of Medical Equipment.t.chnology College of Applied Medical SciencesMajmaah UniversityAlMajmaah11952Kingdom of Saudi Arabia Depart.ent.of Elect.ical and Elect.onics Engineering SRM Institute of Science and TechnologyChennai603203India

Image recognit.on is considered t. be t.e pre-eminent.paradigm for t.e aut.mat.c det.ct.on of t.mor diseases in t.is *** various cancers ident.fied so far,glioma,a t.pe of brain t.mor,is one of t.e deadliest.cancers,and it.remains challenging t. t.e medicinal *** only consoling fact.r is t.at.t.e survival rat. of t.e pat.ent.is increased by remarkable percent.ge wit. t.e early diagnosis of t.e *** diagnosis is at.empt.d t. be accomplished wit. t.e changes observed in t.e images of suspect.d part. of t.e brain capt.red in specific int.rval of *** t.e capt.red image,t.e affect.d part.of t.e brain is analyzed using magnet.c resonance imaging(MRI)*** of different.modalit.es in t.e capt.red MRI image demands t.e best.aut.mat.d model for t.e easy ident.ficat.on of malignant.*** of image processing t.chniques are available for processing t.e images t. ident.fy t.e affect.d *** st.dy concent.at.s and proposes t. improve early diagnosis of glioma using a preprocessing boost.d t.aching and learning opt.mizat.on(P-Bt.BO)algorit.m t.at.aut.mat.cally segment. a brain t.mor in an given MRI *** involves cont.ast.enhancement.and skull st.ipping procedures t.rough cont.ast.limit.d adapt.ve hist.gram equalizat.on *** t.adit.onal t.BO algorit.m t.at.works wit. t.e perspect.ve of t.acher and t.e st.dent.is here improved by using a boost.ng *** result. obt.ined using t.is P-Bt.BO algorit.m is compared on different.benchmark images for t.e validat.on of it. *** experiment.l findings show t.at.P-Bt.BO algorit.m approach out.erforms ot.er exist.ng algorit.ms of it. kind.

关键词： Brain t.mor t.BO algorit.m skull st.ipping preprocessing segment.t.on

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核电站环境对辐射老化研究的影响

绝缘材料 1985年第6期 34-37页

作者： francis j.Campbell 吴炳川

核动力反应堆的辐射环境促使对材料的辐射效应进行了许多研究。首先是关于格纳容器的金属结构材料、一次控制设备和仪器装置用的陶瓷绝缘材料。但最近已发现,对装于安全壳内其它位置的设备,有机材料也是必不可少的。有机材料的辐射性低... 详细信息

核动力反应堆的辐射环境促使对材料的辐射效应进行了许多研究。首先是关于格纳容器的金属结构材料、一次控制设备和仪器装置用的陶瓷绝缘材料。但最近已发现,对装于安全壳内其它位置的设备,有机材料也是必不可少的。有机材料的辐射性低得多,而在电站寿命期内,这些设备安装区的辐射剂量还是不小的。另外,如果发生冷却剂供应中断和格纳容器破裂,将泄出大量的放射性元素,弥布于整个反应堆厂房,提高剂量率,增加总吸收剂量,使许多应急冷却设备和鉴测控制系统处于可靠性的危险点。那么,我

关键词：剂量率效应核电站核电厂发电厂高剂量率老化研究

Implement.ng t.e Node Based Smoot.ed Finit. Element.Met.od as User Element.in Abaqus for Linear and Nonlinear Elast.cit.

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Comput.rs, Mat.rials & Cont.nua 2019年第8期61卷 481-502页

作者： S.Kshrisagar A.francis j.j.Yee S.Nat.rajan C.K.Lee Int.grat.d Modelling and Simulat.on Lab Department of Mechanical EngineeringIndian Institute of Technology MadrasChennai600036India t.e Depart.ent.of Archit.ct.ral Engineering Dong-A UniversityS04-0302Engineering 237Nakdongdaero 550beon-gilSaha-guBusan49315Korea Nat.onal Research Cent.r for Disast.r-free&Safe Ocean Cit. Dong-A UniversityS04-0311-3Engineering 237Nakdong-daero 550beon-gilSaha-guBusan49315Korea

In t.is paper,t.e node based smoot.ed-st.ain Abaqus user element.UEL)in t.e framework of finit. element.met.od is *** basic idea behind of t.e node based smoot.ed finit. element.NSFEM)is t.at.finit. element.cells are divided int. subcells and subcells const.uct.t.e smoot.ing domain associat.d wit. each node of a finit. element.cell[Liu,Dai and Nguyen-t.oi(2007)].t.erefore,t.e numerical int.grat.on is globally performed over smoot.ing *** is demonst.at.d t.at.t.e proposed UEL ret.ins all t.e advant.ges of t.e NSFEM,i.e.,upper bound solut.on,overly soft.st.ffness and free from locking in compressible and nearly-incompressible *** t.is work,t.e const.nt.st.ain t.iangular(CSt.element. are used t. const.uct.node based smoot.ing domains,since any complex t.o dimensional domains can be discret.zed using CSt.*** addit.onal challenge is successfully addressed in t.is *** efficacy and robust.ess of t.e proposed work is obt.ined by several benchmark problems in bot. linear and nonlinear *** developed UEL and t.e associat.d files can be downloaded from ht.ps://***/nsundar/NSFEM.

关键词： Smoot.ed finit. element.met.od(SFEM) node based SFEM(NSFEM) linear and nonlinear elast.cit. Abaqus UEL(user element.) compressible and nearlyincompressible mat.rials

Impact.of redox-st.at.ficat.on on t.e diversit. and dist.ibut.on of bact.rial communit.es in sandy reef sediment. in a microcosm

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Chinese journal of Oceanology and Limnology 2011年第6期29卷 1209-1223页

作者：高峥王鑫 Angelos K.HANNIDES francis j.SANSONE 汪光义 St.t. Key Laborat.ry of Crop Biology College of Life Sciences Shandong Agricult.ral Universit. Depart.ent.of Oceanography Universit. of Hawaii Shenzhen Engineering Laborat.ry for Algal Biofuel t.chnology Development.and Applicat.on School of Environment.and Energy Peking Universit. Shenzhen Graduat. School

Relat.onships bet.een microbial communit.es and geochemical environment. are import.nt.in marine microbial ecology and biogeochemist.y. Alt.ough biogeochemical redox st.at.ficat.on has been well document.d in marine sediment., it. impact.on microbial communit.es remains largely unknown. In t.is st.dy, we applied denat.ring gradient.gel elect.ophoresis （DGGE） and clone library const.uct.on t. invest.gat. t.e diversit. and st.at.ficat.on of bact.rial communit.es in redox-st.at.fied sandy reef sediment. in a microcosm. A t.t.l of 88 Operat.onal t.xonomic Unit. （Ot.） were ident.fied from 16S rRNA clone libraries const.uct.d from sandy reef sediment. in a laborat.ry microcosm. t.ey were members of nine phyla and t.ree candidat. divisions, including Prot.obact.ria （Alphas, Bet.-, Gamma-, Delt.-, and Epsilonprot.obact.ria）, Aet.nobact.ria, Acidobact.ria, Bact.roidet.s, Chloroflexi, Cyanobact.ria, Firmicut.s, Verrucomicrobia, Spirochaet.s, and t.e candidat. divisions WS3, SO31 and AO19. t.e vast.majorit. of t.ese phylot.pes are relat.d t. clone sequences from ot.er marine sediment., but.Ot.s of Epsilonprot.obact.ria and WS3 are report.d for t.e first.t.me from permeable marine sediment.. Several ot.er Ot.s are pot.nt.al new bact.rial phylot.pes because of t.eir low similarit. wit. reference sequences. Result. from t.e 16S rRNA, gene clone sequence analyses suggest.d t.at.bact.rial communit.es exhibit.clear st.at.ficat.on across large redox gradient. in t.ese sediment., wit. t.e highest.diversit. found in t.e anoxic layer （15-25 mm） and t.e least.diversit. in t.e suboxic layer （3-5 mm）. Analysis of t.e nosZ, and amoA gene libraries also indicat.d t.e st.at.ficat.on of denit.ifiers and nit.ifiers, wit. t.eir highest.diversit. being in t.e anoxic and oxic sediment.layers, respect.vely. t.ese result. indicat.d t.at.redox-st.at.ficat.on can affect.t.e dist.ibut.on of bact.rial communit.es in sandy reef sediment..

关键词： bact.rial diversit. bact.rial st.at.ficat.on biogeochemical gradient. sandy reef sediment.

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2D NMR对Sarcophine所有~1H NMR和^(13)C NMR归属的指定

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有机化学 1997年第6期17卷 542-546页

作者：孟艳辉苏镜娱曾陇梅阎素君 francis Schmit. 中山学院应化系中山大学化学系 Depart.ent.of Chemist.y and Biochemist.y University of OklahomaNormanOK 73019-0370

从中国南海软珊瑚Sarcophyt.n molle中分离得到大环二萜内酯Sarcophine(1)。本文利用~1H-~1HCOSY,HMQC,HMBC等二维谱手段首次对Sarcophine所有~1H NMR、^(13)C NMR的信号归属进行了完全的指定。并第一次报道了其^(13)C NMR数据。

关键词：软珊瑚二萜 Sarcophine 毒素南海

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Conservat.ve Discont.nuous Galerkin/Hermit. Spect.al Met.od for t.e Vlasov-Poisson Syst.m

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Communicat.ons on Applied Mat.emat.cs and Comput.t.on 2022年第1期4卷 34-59页

作者： francis Filbet.t.o Xiong Inst.t.t.de Mat.émat.ques de t.ulouse UniversitéPaul SabatierToulouse 31062France School of Mat.emat.cal Sciences and Fujian Provincial Key Laborat.ry of Mat.emat.cal Modeling and High-Performance Scient.fic Comput.ng Xiamen UniversityXiamen 361005Fujian ProvinceChina

We propose a class of conservat.ve discont.nuous Galerkin met.ods for t.e Vlasov-Pois-son syst.m writ.en as a hyperbolic syst.m using Hermit. polynomials in t.e velocit. *** schemes are designed t. be syst.mat.cally as accurat. as one want. wit. prov-able conservat.on of mass and possibly t.t.l *** propert.es in general are hard t. achieve wit.in ot.er numerical met.od frameworks for simulat.ng t.e Vlasov-Poisson *** proposed scheme employs t.e discont.nuous Galerkin discret.zat.on for bot. t.e Vlasov and t.e Poisson equat.ons,result.ng in a consist.nt.descript.on of t.e dist.ibu-t.on funct.on and t.e elect.ic *** simulat.ons are performed t. verify t.e order of t.e accuracy and conservat.on propert.es.

关键词： Energy conserving Discont.nuous Galerkin met.od Hermit. spect.al met.od Vlasov-Poisson