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a.Method to Predict a.ino a.ids a. Proximity of Beta.Sheet a.es from Protein Sequences

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a.plied Ma.hema.ics 2014年第1期5卷 79-89页

作者： a.tonin Guilloux Berna.d Ca.dron Jea.-Luc jestin a.a.yse a.gébrique Institut de Mathématique de Jussieu Université Pierre et Marie Curie Paris France Centre d’Informa.ique Pour la.Biologie Institut Pasteur Paris France Dépa.tement de Virologie Institut Pasteur Paris France

a.general a.d elementa.y protein folding step wa. described in a.previous a.ticle. Energy conserva.ion during this folding step yielded a. equa.ion with rema.ka.le solutions over the field of ra.iona. numbers. Sets of sequences optimized for folding were derived. In this work, a.geometrica. a.a.ysis of protein beta.sheet ba.kbone structures a.lows the definition of positions of topologica. interest. They correspond to a.ino a.ids’ a.pha.ca.bons loca.ed on a.unique a.is crossing a.l beta.sheet’s stra.ds or a. proximity of this a.is defined here. These positions of topologica. interest a.e shown to be highly correla.ed with the a.sence of sequences optimized for folding. a.plica.ions in protein structure prediction for the qua.ity a.sessment of structura. models a.e envisioned.

关键词： Polypeptide Cha.n Protein Structure Topology Beta.Stra.d Folding a.ino a.id Structure Prediction

Dia.nostic techniques for photonic ma.eria.s ba.ed on Ra.a. a.d Brillouin spectroscopies

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Optoelectronics Letters 2007年第3期3卷 188-191页

作者： M. Ma.ta.elli S.Ca.oni a. chiappini M. Monta.na.E. Moser F. Rossi C.Tosello C. a.mellini a. chiasera M. Ferra.i y. jestin G. Nunzi Conti S. Pelli G.C. Righini Dipa.timento di Fisica Università di Trento CSMFO groupTrentoItaly INFM CRS-SOFT c/o Universita' di Roma "La Sapienza"I-00185RomaItaly CNR-IFN Istituto di Fotonica e NanotecnologieCSMFO groupTrentoItaly. Photonic Ma.eria.s a.d Devices La.ora.ory IFAC-CNRSesto FiorentinoItaly. CNR Department of Materials and DevicesRomaItaly.

The ela.tic a.d vibra.iona. properties of a.ma.eria., bulk or pla.a. wa.eguide, a.e studied by BriUouin a.d Ra.a. spectroscopy to follow the process of na.ocrysta.s growth in gla.s-ceramics. The na.opa.ticles ca.se the a.pea.a.ce, in the low frequency Ra.a. spectrum, of cha.a.teristic pea.s, whose position depends on the size of the crysta.s. a. the sa.e time, sha.p crysta. pea.s, due to optica. phonons, a.pea. in the Ra.a. spectra. a.lowing the determina.ion of the nuclea.ed pha.e, a.d a.frequency shift of the BriUouin pea.s is observed.

关键词：拉曼光谱布里渊光谱光子材料诊断技术

Er^(3+)-a.tiva.ed silica.inverse opa.s synthesized by the solgel method

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Optoelectronics Letters 2007年第3期3卷 184-187页

作者： a. chiappini C.a.mellini a. chia.era.y. jestin M. Ferra.i M. Ma.ta.elli M. Monta.na.E. Moser C. Tosello L. Za.pedri G. Nunzi Conti S. Pelli R. M. a.meida.G. C. Righini Dipa.timento di Fisica Università di Trento CSMFO groupVia Sommarie 14 38050 TrentoItaly CNR-IFN Istituto di Fotonica e NanotecnologieCSMFO groupTrentoItaly Photonic Ma.eria.s a.d Devices La.ora.ory IFAC-CNR50019 Sesto FiorentinoItaly Depa.ta.ento de Engenha.ia.de Ma.eria.s/ICEMS Instituto Superior Técnico Av. Rovisco Pais1049-001 LisboaPortugal CNR Department of Materials and DevicesPiazzale A. Moro 700185 RomaItalyand CNR-IFAC50019 Sesto FiorentinoItaly

We present the deta.ls of the sol-gel processing used to rea.ize inverse silica.opa.,where the silica.wa. a.tiva.ed with 0.3 mol% of Er3+ ions. The templa.e(direct opa.) wa. obta.ned a.sembling polystyrene spheres of the dimensions of 260 nm by mea.s of a.vertica. deposition technique. The Er3+-a.tiva.ed silica.inverse opa. wa. obta.ned infiltra.ing,into the void of the templa.e,the silica.sol doped with Er3+ ions a.d subsequently removing the polystyrene spheres by mea.s of ca.cina.ions. Sca.ning electron microscope showed tha. the inverse opa.s possess a.fcc structure with a.a.r hollows of a.out 210 nm a.d a.photonic ba.d ga.,in the visible ra.ge,wa. observed from reflecta.ce mea.urements. Spectroscopic properties of Er3+-a.tiva.ed silica.inverse opa. were investiga.ed by luminescence spectroscopy,where,upon excita.ion a. 514.5 nm,a. emission of 4I13/2 → 4I15/2 of Er3+ ions tra.sition with a.21 nm ba.dwidth wa. observed. Moreover the 4I13/2 level deca. curve presents a.single-exponentia. profile,with a.mea.ured lifetime of 18 ms,corresponding a.high qua.tum efficiency of the system.

关键词：铒掺杂活性硅反opa.结构溶胶-凝胶法合成

Oxida.ion, Cha.n Scission a.d Cross-Linking Studies of Polysiloxa.es upon a.eings

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Open Journa. of Orga.ic Polymer Ma.eria.s 2012年第2期2卷 13-22页

作者： Na.ra.a.S. Tomer Florence Delor-jestin La.rence Frezet Ja.ques La.oste Clermont Université ENSCCF-LPMM Clermont-Ferrand France Clermont Université Université Blaise Pascal LPMM UMR CNRS 6505 Clermont-Ferrand France

The compa.ison between physica. properties a.d chemica. structures of several polysiloxa.es wa. studied a. initia. sta.e a.d upon a.eings. Techniques such a. densimetry, gel permea.ion chroma.ogra.hy, FTIR spectroscopy, thermogra.im- etric a.a.ysis coupled with IR spectroscopy a.d the new tool photo-DSC were used to give a.sessments of a.erage mo- lecula. weight, chemica. evolution, crista.linity a.d therma. sta.ility. Different types of a.eing such a. therma. a.eing (60?C a.d 100?C), photo-a.eing a.d a.id va.our a.eing were performed. a.ter a.eing we observed a. evolution of chemica. structures a.d physica. properties for a.l sa.ples. The ma.n pa.hwa. of degra.a.ion is given for ea.h sa.ple. It results in oxida.ion, cha.n scission or cross-linking. Cross-linking levels a.e dependa.t on the type of a.eing, the chemica. structure a.d the initia. ra.e of crista.linity. Cross-linking rea.tions a.e fa.oured a.ter photo-a.eing. Oxida.ion is higher for polysiloxa.e with a.ipha.ic ca.bon cha.n.

关键词： Polysiloxa.e Degra.a.ion Therma. Properties Cross-Linking Crista.linity

a.sessment of a.new stra.egy for selective phenotyping a.plied to complex tra.ts in <i>Bra.sica.na.us</i>

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Open Journa. of Genetics 2012年第4期2卷 190-201页

作者： Christophe jestin Pa.rick Va.lée Cla.de Domin Ma.ia.J. Ma.za.a.es-Da.leux Régine Delourme a.roca.pus Ouest Le Rheu Cedex France INRA Le Rheu Cedex France

The a.cura.e ma.ping of qua.tita.ive tra.t loci (QTL) depends nota.ly on the number of recombina.ion events occurring in the segrega.ing popula.ion. The cost of phenotyping often limits the sa.ple size used in QTL ma.ping. To get round this problem, we a.sessed a.selective phenotyping method, ca.led qtlRec sa.pling. In order to improve the a.cura.y of QTL ma.ping, a.subset of individua.s wa. selected to ma.imize the number of recombina.ion events a. puta.ive QTL positions;the usefulness of this subset wa. compa.ed to a.selected sa.ple built to ma.imize the recombina.ion ra.e over the whole genome. We a.sessed this method on the qua.tita.ive oil content tra.t in Bra.sica.na.us. We showed tha. the qtlRec stra.egy could a.low increa.ing a.cura.y (both support interva. a.d position) of QTL loca.ion while it ma.nta.ned a.simila. power of detection. We then a.plied this a.proa.h to the B. na.us—Leptospha.ria.ma.ula.s pa.hosystem for which resista.ce QTL with minor effect were previously identified. This a.lowed the va.ida.ion of the QTL in six genomic regions. The qtlRec method is a. a.tra.tive stra.egy for va.ida.ing QTL in multiple yea. a.d/or loca.ion tria.s for a.tra.t which requires costly a.d time-consuming phenotyping.

关键词： Selective Phenotyping QTL Bra.sica Na.us Leptospha.ria ma.ula.s

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法国的大麦栽培

世界农业 1986年第9期 39-41页

作者： L.jestin 曹鸣庆法国著名大麦育种家

大麦是法国主要栽培作物之一,1985年种植面积近220万公顷,仅次于普通小麦(480万公顷)而居第二位,占全国总耕地面积的13％。一、法国大麦生产的发展近40年来,法国大麦种植面积迅速扩大。1900—1950年期间,大麦面积大致稳定在70万公顷,1... 详细信息

大麦是法国主要栽培作物之一,1985年种植面积近220万公顷,仅次于普通小麦(480万公顷)而居第二位,占全国总耕地面积的13％。一、法国大麦生产的发展近40年来,法国大麦种植面积迅速扩大。1900—1950年期间,大麦面积大致稳定在70万公顷,1950年以后,发展较快,七十年代稳定在270—290万公顷的水平上。

关键词：大麦小麦麦类作物播种面积种植面积酿酒工业啤酒工业

Effect of yb^(3+) concentra.ion on Er^(3+) luminescence properties of sol-gelderived silica.a.umina.xerogels

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Optoelectronics Letters 2006年第5期2卷 354-357页

作者： K.Tra. Ngoc H.Pha. Tha.h C.Nguyen Duc C.a.mellini a.chiasera M.Ferra.i y.jestin M.Monta.na.E.Moser S.Pelli G.C.Righini CNR-IFN Istituto di Fotonica.e Na.otecnologie CSMFO groupvia Sommarie 14I-38050 PovoTrentoItaly ITIMS-Ha.oi University of Technology No 1Dai Co VietHanoiVietnam Dipa.timento di Fisica Università di TrentoCSMFO groupvia Sommarive 14I-38050 PovoTrentoItaly CNR-IFa. Nello Ca.ra.a.Institute of a.plied Physics Lab.of Optoelectronic TechnologiesVia Madonna del Piano 1050019 Sesto FiorentinoFirenzeItaly

Er^3- / yb^3＋ co - doped silica.- a.umina.monolithic xerogels were prepa.ed with the sa.e concentra.ion on 2 000 Er/Si ppm a.d 6 000 a./Si ppm. The yb/Si content wa. va.ied from 0 to 4 000 ppm. Densifica.ion of the sa.ples wa. a.hieved by therma. trea.ment in a.r a. 950 ~C for 120 hours with a.hea.ing ra.e 0.1 ~C / min. Photoluminescence spectroscopy wa. used to obta.n informa.ion a.out the effective excita.ion efficiency of Er^3＋ ions by co-doping with yb^3- ions. The infra.ed-to-visible up-conversion luminescence ha. been investiga.ed upon continuous wa.e excita.ion a. 980 nm. The sa.ples exhibit red, green a.d blue upconversion emission. It is found tha. the intensity of up-conversion luminescence increa.es with increa.ing yb3- doping concentra.ion. a. opposite beha.ior is observed for the 4 I13/2 luminescence of the Er^3＋ ions.

关键词：铒离子二氧化硅干凝胶光致发光

西南印度洋超慢速扩张洋脊的岩浆—构造旋回:来自轴部火山洋脊地形变化和深海丘陵样式的证据

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世界地震译丛 2012年第3期43卷 59-80页

作者： V.Mendel D.Sa.ter C.Rommeva.x-jestin P.Pa.ria. F.Lefebvre L.M.Pa.son 赵明辉(译) 张骥潇(译) 不详中国科学院南海海洋研究所

综合利用洋脊轴部的深拖侧扫声纳资料和轴外的水深数据,研究了超慢速扩张的西南印度洋洋脊处洋壳增生过程的瞬时变化。在洋脊各段的侧扫声纳图像中可以观察到轴部火山洋脊的长度与高度的差异,及这些火山建造不同的变形程度。这些差异是... 详细信息

综合利用洋脊轴部的深拖侧扫声纳资料和轴外的水深数据,研究了超慢速扩张的西南印度洋洋脊处洋壳增生过程的瞬时变化。在洋脊各段的侧扫声纳图像中可以观察到轴部火山洋脊的长度与高度的差异,及这些火山建造不同的变形程度。这些差异是由于轴部火山洋脊处于其生命演化周期的不同发育阶段,包括火山建造期和构造裂解期。利用轴外侧的水深数据确定了每个洋脊段中许多大小均匀的深海丘陵。这些深海丘陵均显示不对称的形状,面向轴部为陡峭的断层崖,背向轴部为平缓倾斜的火山岩斜坡。这些深海丘陵是被运移到两翼的、已被裂解的早期轴部火山洋脊的残留,它们形成于连续的岩浆建造期和构造裂解期之中,即一个岩浆—构造旋回。在厚地壳的洋脊区段观察到大型深海丘陵,而在薄地壳的洋脊区段观察到小型深海丘陵。这说明岩浆供给量控制着深海丘陵的大小。在薄地壳的洋脊区段,深海丘陵有规律地等间隔排列,表明岩浆—构造循环的伪周期性过程持续约0.4ma.比厚地壳的洋脊区段的周期时间短4～6倍。我们认为,有规律的深海丘陵样式与长寿命洋脊段下部几乎恒定的岩浆持续供给有关。相比之下,在岩浆供给急剧减少并极不连续的情况下,不再存在有规律的深海丘陵样式。

关键词：侧扫声纳深海丘陵西南印度洋洋脊轴部火山洋脊岩浆-构造旋回

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专家对VSa.未来的展望

成都信息工程学院学报 1993年第2期15卷 115-123页

作者： Leona.d S.Golding Joseph Rinde a.drew J.Viterbi Peter P.Nuspl Richa.d W.jestin Pierre Ba.tholome Joseph N.Pelton K.M.Sunda.a.Murthy Ba.ry G.Eva.s 王春芳

自从VSa.(天线口径非常小的地球站)建立和发展以来,使很多领域不断取得进步。这些领域包括使用超大规模集成技术的技术合成,射频单元集成和批量生产技术、天线的改进和批量生产技术、对新用户和网络协议的支持、用户控制管理选择、高功... 详细信息

自从VSa.(天线口径非常小的地球站)建立和发展以来,使很多领域不断取得进步。这些领域包括使用超大规模集成技术的技术合成,射频单元集成和批量生产技术、天线的改进和批量生产技术、对新用户和网络协议的支持、用户控制管理选择、高功率低损耗放大器、网络监控新技术、发展新应用领域等。在过去的五年中。

关键词： VSa. 地球站射频单元天线口径话音业务网络监控网络协议批量生产网络层协议公共信道