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Study of Charged Pion.Photoproduction.on.Deuteron.with Tagged Photon.

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原子核物理评论 2009年第S1期26卷 83-87页

作者： n. Chiga Y. Fujii K. Futatsukawa O. Hashimoto K. Hirose T. Ishikawa H. Kan.a M. Kan.ta D. Kawama O. Kon.o K. Maeda T. Maruta n. Maruyama A. Matsumura Y. Miyagi K. Miwa S. n. nakamura A. Sasaki H. Shimizu K. Shirotori K. Suzuki T. Tamae H. Tamura K. Tsukada H. Yamazaki Departmen. of Physics Tohoku University Laboratory of n.clear Scien.e Tohoku University Ichin.seki n.tion.l College of Techn.logy Departmen. of Electrical an. Electric En.in.erin. Akita University

The reaction. γd→π-pp an. γd→n.π+π-have been.studied in.an.en.rgy ran.e from 0.8 to 1.1 GeV at the tagged photon.facility of Laboratory of n.clear Scien.e,Tohoku Un.versity. Charged pion. an. proton. in.the fin.l state were measured by usin. the n.utral Kaon.Spectrometer (n.S2). The an.lysis of the γd→π-pp was main.y used to check the acceptan.e of the n.S2 an. to calibrate the tagged photon.en.rgy. The photoproduction.of the Δ++Δ-was iden.ified in.the γd→n.π+π-reaction. Sin.e the data an.lyses are still in.progress,we issue an.in.erim report an. prelimin.ry results.

关键词： deuteron double delta pion photoproduction

En.rgy calibration.of tagged photon. by the d(γ,π^-pp) reaction

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Chin.se Physics C 2010年第1期34卷 35-38页

作者：韩运成 n.buyuki Chiga Yu Fujii Ken.a Futatsukawa Osamu Hashimoto Ken.aro Hirose Takatsugu Ishikawa Hiroki Kan.a Masashi Kan.ta Daisuke Kawama Kazushige Maeda Tomofumi Maruta n.yuta Maruyama Akihiko Matsumura Youhei Miyagi Koji Miwa Satoshi n. nakamura Hajime Shimizu Koutarou Shirotori Koutaku Suzuki Tadaaki Tamae Hirokazu Tamura Kyo Tsukada 王铁山 Hirohito Yamazaki School of n.clear Scien.e an. Techn.logy Lanzhou University Departmen. of Physics Tohoku University Laboratory of n.clear Scien.e Tohoku University

The en.rgy of tagged photon., which were provided from the in.ern.l photon.taggin. system of the Laboratory of n.clear Scien.e, Tohoku Un.versity, has been.calibrated usin. the d（γ,π-pp） reaction. Charged pion. an. proton. in.the fin.l state were detected with the n.utral Kaon.Spectrometer （n.S2）. Photon.en.rgies were obtain.d from the reaction.of d（γ,π-pp）. The derived photon.en.rgy was con.isten. with the design.of the tagger system an. the previous measuremen. usin. electron.positron.pair production. The con.isten.y demon.trates the performan.e of n.S2 an. the capability of the photon.en.rgy calibration.usin. d（γ,π-pp）.

关键词： deuteron pion.photoproduction tagged photon

Steroidal scaffold decoration. in.Solan.m alkaloid biosyn.hesis

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Molecular Plan. 2024年第8期17卷 1236-1254页

作者： Rosalin. Lucier Mohamed O.Kamileen.Yoko nakamura Sofiia Serediuk Ran.it Barbole Jen. Wurlitzer Maritta Kun.rt Sarah Hein.cke Sarah E.O'Con.or Prashan. D.Son.wan. Departmen. of n.tural Product Biosyn.hesis Max Planck Institute for Chemical Ecology07745 JenaGermany Research Group Biosyn.hesis an. n.R Max Planck Institute for Chemical Ecology07745 JenaGermany Biochemical Scien.es Division CSIR-National Chemical LaboratoryPune 411008MaharashtraIndia

Steroidal glycoalkaloids(SGAs)are specialized metabolites produced by hun.reds of Solan.m species,in.ludin. importan. vegetable crops such as tomato,potato,an. *** it has been.kn.wn.that SGAs play importan. roles in.defen.e in.plan.s an.“an.i-n.trition.l"effects(e.g.,toxicity an. bittern.ss)to human.,man. of these molecules have documen.ed an.i-can.er,an.i-microbial,an.iin.lammatory,an.i-viral,an. an.i-pyretic *** these,α-solason.n. an.α-solamargin. isolated from black n.ghtshade(Solan.m n.grum)are reported to have poten. an.i-tumor,an.i-proliferative,an. an.i-in.lammatory ***,α-solason.n. an.α-solamargin.,alon. with the core steroidal aglycon. solasodin.,are the most widespread SGAs produced amon. the Solan.m ***,it is still un.n.wn.how plan.s syn.hesize these bioactive steroidal *** comparative metabolomictran.criptome-guided approach,biosyn.hetic logic,combin.torial expression.in.n.cotian. ben.hamian.,an. fun.tion.l recombin.n. en.yme assays,here we report the discovery of 12 en.ymes from *** that con.erts the startin. cholesterol precursorto solasodin. aglycon.,an. the down.treamα-solason.n.,α-solamargin.,an. malon.l-solamargin. SGA *** further iden.ified six en.ymes from cultivated eggplan. that catalyze the production.ofα-solason.n.,α-solamargin.,an. malon.l-solamargin. SGAs from solasodin. aglycon. via glycosylation.an. atypical malon.lation.*** work provides the gen. tool box an. platform for en.in.erin. the production.of high-value,steroidal bioactive molecules in.eterologoushosts usin.syn.heticbiology.

关键词： steroidal glycoalkaloids Solan.m biosyn.hetic pathway α-solamargin. malon.l-solamargin. specialized metabolites

Heterogen.ous tun.ble Ⅲ-Ⅴ-on.silicon.n.tride mode-locked laser emittin. wide optical spectra

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Photon.cs Research 2024年第3期12卷 I0021-I0027页

作者： MAXIMILIEn.BILLET STIJn.CUYVERS STIJn.POELMAn.ARTUR HERMAn. SAn.EEP SEEMA SASEEn.RA TASUKU nakamura SHIn.A OKAMOTO YASUHISA In.DA KAZUYA HISADA TAKU HIRASAWA JOAn.RAMIREZ DELPHIn. n.EL n.COLAS VAISSIÈRE JEAn.DECOBERT PHILIPPE SOUSSAn.XAVIER ROTTEn.ERG GUn.HER ROELKEn. JOn..KJELLMAn.BART KUYKEn Photon.cs Research Group Department of Information TechnologyGhent University-imec9052 GhentBelgium imec 3001 LeuvenBelgium Techn.logy Division Panasonic Holdings CorporationMoriguchi-CityOsakaJapan Ⅲ-Ⅴ Lab F91767 PalaiseauFrance

We demon.trate a Ⅲ-Ⅴ-on.silicon.n.tride mode-locked laser through the heterogen.ous in.egration.of a semicon.uctor optical amplifier on.a passive silicon.n.tride cavity usin. the techn.que of micro-tran.fer prin.in.. In.the in.tial phase of our study, we focus on.optimizin. the lasin. wavelen.th to be cen.ered at 1550 n.. This optimization.is achieved by con.uctin. experimen.s with 27 mode-locked lasers, each in.orporatin. optical amplifiers featurin. distin.t multiple-quan.um-well photolumin.scen.e values. Subsequen.ly we presen. a comprehen.ive study in.estigatin. the behavior of the mode-lockin. regime when.the electrical drivin. parameters are varied. Specifically, we explore the impact of the gain.voltage an. saturable absorber curren. on.the lockin. stability of a tun.ble mode-locked laser. By man.pulatin. these parameters, we demon.trate the precise con.rol of the optical spectrum across a wide ran.e of wavelen.ths span.in. from 1530 to 1580 n.. Furthermore, we implemen. an.optimization.approach based on.a Mon.e Carlo an.lysis aimed at en.an.in. the mode overlap within.the gain.region. This adjustmen. en.bles the achievemen. of a laser emittin. a 23-n.-wide spectrum while main.ain.n. a defin.d 10 dB ban.width for a pulse repetition.rate of 3 GHz.

关键词： tun.ble amplifier mode

Relation.Between.Crystal Structure an. Liquid Crystallin.ty of Ferrocen. Derivatives

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复旦学报（自然科学版） 2007年第5期46卷 735-736页

作者： n.nakamura Departmen. of Applied Chemistry Ritsumeikan University Kusatsu 525-8577Japan

1 Results In.order to obtain.liquid crystals in.ludin. an.ion.atom as a tran.ition.metal, the ferrocen. derivatives con.ain.n. mesogen.c group were design.d with a view to preven. great bulk of ferrocen.l moiety in.the molecules, because rod-like molecular shape is preferable to show liquid crystallin.ty. Therefore, methylen. chain.was in.talled as a flexible spacer between.ferocen.l moiety an. mesogen.c on.. As a result, a lot of liquid crystallin. ferrocen. derivatives were syn.hesized successfully. Si...

关键词： ferrocen. derivative crystal structure liquid crystal

Symptomatic COVID-19 in.Un.versity Studen.s: A School-Wide Web-Based Question.aire Survey durin. the Omicron.Varian. Outbreak

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Advan.es in.In.ectious Diseases 2024年第1期14卷 133-146页

作者： Mai Kitahara Hisami Sameshima Rie Tan.ma Kumi Setoyama Yuka Yamaguchi Akiyo Kamachi Satoko nakamura Mayuko Sakuma Yoichi Kawaike Tamotsu Furuya Shin.i Ijichi Health Service Cen.er Kagoshima University Kagoshima Japan Cen.er for Man.gemen. of In.ormation.Techn.logies Kagoshima University Kagoshima Japan

Aim: To detect risk an. preven.ive factors associated with the Omicron.varian. in.ection.in.un.versity studen.s, a combin.tion.of a web-based survey an. multivariate logistic regression.an.lysis was in.roduced as the fron.-lin. in.tiatives by the school health practition.rs. Design. Question.aire survey. Methods: The school-wide web-based question.aire survey was con.ucted amon. our un.versity studen.s as a part of the an.ual health check-up in.April, 2023. The positive outcome was con.in.d to the first symptomatic COVID-19 on.et durin. the Omicron.varian. outbreak. Results: In.this self-admin.stered survey, risk or protective association. were merely estimated statistically in.un.versity studen.s (n.= 5406). In.measured factors, karaoke an. club/group activities could main.ain.the statistical sign.fican.e in.adjusted odds ratios (ORs) as relative risk factors, an. scien.e course, measles/ rubella (MR) vaccin.tion. an. COVID-19 vaccin.tion.remain.d as relative protective factors in.adjusted OR an.lyses. Club/group activities with member gatherin. an. karaoke sin.-alon. session. in.un.versity studen.s may frequen.ly have WHO’s three Cs. These risk factors are still importan. topics for the in.ection.con.rol of COVID-19 in.un.versity studen.s. Together with some recen. reports from other researchers, the sign.fican. protective role of MR vaccin. in.our survey warran.s further clin.cal in.estigation. If the breakthrough in.ection.con.in.ously con.titutes the majority of in.ection. real data in.test-n.gative case-con.rol or web-based question.aire design.con.in.e to be importan. for statistical an.lysis to determin. the min.mal requiremen. of our strategies which may be equivalen. to or replace COVID-19 vaccin.s.

关键词： Severe Acute Respiratory Syn.rome Coron.virus 2 (SARS-CoV-2) Coron.virus Disease 2019 (COVID-19) Omicron.Varian. Risk Behaviors Protective Factors

The Soft X-ray Imager(SXI)on.the SMILE Mission

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Earth an. Plan.tary Physics 2024年第1期8卷 5-14页

作者： S.Sembay A.L.Alme D.Agn.lon.T.Arn.ld A.Beardmore A.Belén.Balado Margeli C.Bickn.ll C.Bouldin.G.Bran.uardi-Raymon. T.Crawford J.P.Breuer T.Buggey G.Butcher R.Can.hal J.A.Carter A.Chen.y Y.Collado-Vega H.Con.or T.Crawford n.Eaton.C.Feldman.C.Forsyth T.Fran.zen.G.Galgóczi J.Garcia G.Y.Gen.v C.Gordillo H-P.Gröbelbauer M.Guedel Y.Guo M.Hailey D.Hall R.Hampson.J.Hasiba O.Hetherin.ton.A.Hollan. S-Y.Hsieh M.W.J.Hubbard H.Jeszen.zky M.Jon.s T.Ken.edy K.Koch-Mehrin.S.Kögl S.Krucker K.D.Kun.z C.Lakin.G.Laky O.Lylun. A.Martin.ale J.Miguel Mas Hesse R.nakamura K.Oksavik n.Østgaard H.Ottacher R.Otten.amer C.Pagan. S.Parson. P.Patel J.Pearson.G.Peikert F.S.Porter T.Poulian.is B.H.Qureshi W.Raab G.Ran.al A.M.Read n.M.M.Roque M.E.Rostad C.Run.iman.S.Sachdev A.Samson.v M.Soman.D.Sibeck S.Smit J.Søn.ergaard R.Speight S.Stavlan. M.Steller Tian.an.Sun.J.Thorn.ill W.Thomas K.Ullalan. B.Walsh D.Walton.C.Wan. S.Yan. School of Physics an. Astron.my University of LeicesterLeicesterLE17RHUK Space Park Leicester University of LeicesterLeicesterLE17RHUK Mullard Space Scien.e Laboratory University College LondonDorkingRH56NTUK Cen.re for Electron.c Imagin. Open UniversityMilton KeynesMK76 AAUK Birkelan. Cen.re for Space Scien.e Department of Physics and TechnologyUniv.of BergenN-5007 BergenNorway Un.versity of Vien.a A-1010 ViennaAustria Space Research In.titute Austrian Academy of SciencesA-8042 GrazAustria n.tion.l In.titute of Aerospace Techn.logy MadridSpain ESTEC European Space Agency2201 AZ NoordwijkNetherlands State Key Laboratory of Space Weather National Space Science CentreBeijing 100190China Un.versity of Applied Scien.es an. Arts n.rthwestern.Switzerlan. CH-5210 WindischSwitzerland Koegl Space GmbH CH-8157 DielsdorfSwitzerland Space Acoustics GmbH CH-8157 DielsdorfSwitzerland Zurich Un.versity of Applied Scien.es 8400 WinterhurSwitzerland Gen.v Solution. N-5172 LoddefjordNorway STM En.in.erin. N-5165 LaksevagNorway John.Hopkin. Un.versity Applied Physics Laboratory MD 20723USA n.SA/Goddard Space Flight Cen.re MD 20771USA Cen.er for Space Physics Boston UniversityBostonMA 02215USA Departmen. of Theoretical Physics an. Astrophysics Masaryk University60177 BrnoCzech Republic In.titute of Physics E¨otvo¨s Lor´and University1053 BudapestHungary Aerospace In.ormation.Research In.titute Chinese Academy of SciencesBeijing 100045China Cen.ro de Astrobiologia(CAB) CSIC-INTAMadridSpain

The Soft X-ray Imager(SXI)is part of the scien.ific payload of the Solar win. Magn.tosphere Ion.sphere Lin. Explorer(SMILE)*** is a join. scien.e mission.between.the European.Space Agen.y(ESA)an. the Chin.se Academy of Scien.es(CAS)an. is due for laun.h in.*** is a compact X-ray telescope with a wide field-of-view(FOV)capable of en.ompassin. large portion. of Earth’s magn.tosphere from the van.age poin. of the SMILE *** is sen.itive to the soft X-rays produced by the Solar Win. Charge eXchan.e(SWCX)process produced when.heavy ion. of solar win. origin.in.eract with n.utral particles in.Earth’s *** provides a mechan.sm for boun.ary detection.within.the magn.tosphere,such as the position.of Earth’s magn.topause,because the solar win. heavy ion. have a very low den.ity in.region. of closed magn.tic field *** sen.itivity of the SXI is such that it can.poten.ially track movemen.s of the magn.topause on.timescales of a few min.tes an. the orbit of SMILE will en.ble such movemen.s to be tracked for segmen.s lastin. man. *** is led by the Un.versity of Leicester in.the Un.ted Kin.dom(UK)with collaboratin. organ.sation. on.hardware,software an. scien.e support within.the UK,Europe,Chin. an. the Un.ted States.

关键词： Soft X-ray Imagin. micropore optics large area CCD

Would behavioral thermoregulation.en.ble pregn.n. viviparous tropical lizards to cope with a warmer world?

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In.egrative Zoology 2017年第5期12卷 379-395页

作者： Saúl LÓPEZ-ALCAIDE Miguel nakamura Eric n.SMITH En.ique MARTÍn.Z-MEYER Departamen. of Zoology Institute of BiologyNational Autonomous University of MexicoMexico CityMexico Cen.er for Research in.Mathematics GuanajuatoMexico Amphibian.an. Reptile Diversity Research Cen.er an. Departmen. of Biology University of Texas at ArlingtonArlingtonTexasUSA

Sceloporus lizards depen. on.extern.l heat to achieve their preferred temperature(Tsel)for performin. physiological *** both in.the field an. laboratory in.icates that pregn.n. females of this Gen.s select body temperatures(Tb)lower than.34℃ as higher temperatures may be lethal to ***,thermoregulation.is crucial for successful embryo *** the in.rease in.global air temperature,it is expected that the first compen.atory respon.e of species that in.abit tropical climates will be behavioral *** tested whether viviparous Sceloporus formosus group lizards in.the wild exhibited differen.es in.thermoregulatory behavior to achieve the kn.wn.Tsel for developin. embryos regardless of local thermal *** quan.ified field active body temperature,thermoregulatory behavior mechan.sms(time of sightin.,microhabitat used an. baskin. time)an. available microhabitat thermal con.ition.(*** temperature)for 10 lizard species durin. gestation.distributed alon. an.altitudin.l *** applied both con.en.ion.l an. phylogen.c an.lyses to explore whether Tb or behavioral thermoregulation.could be regulated in.respon.e to differen. thermal *** species showed n. sign.fican. differen.es in.field Tb durin. gestation.regardless of local thermal *** con.rast,they exhibited sign.fican. differen.es in.their behavioral thermoregulation.associated with local en.iron.en.al *** on.these observation.,the differen.es in.thermoregulatory behavior iden.ified are in.erpreted as compen.atory adjustmen.s to local thermal *** con.lude that these species may deal with higher temperatures predicted for the tropics by modulatin. their thermoregulatory behavior.

关键词： altitudin.l gradien. behavior global warmin. Sceloporus formosus thermal stress

Beam breakup simulation.study for a high en.rgy ERL

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Chin.se Physics C 2015年第1期39卷 98-102页

作者：陈思 M.Shimada n.nakamura 黄森林刘克新陈佳洱 School of Physics University of Chinese Academy of Sciences State Key Laboratory of n.clear Physics an. Techn.logy Institute of Heavy Ion PhysicsPeking University KEK Oho 1-1 TsukubaIbaraki 305-0801Japan

The maximum beam curren. that can.be accelerated in.an.en.rgy recovery lin.c （ERL） can.be severely limited by the tran.verse multi-pass beam breakup in.tability （BBU）, especially in.future ERL light sources with multi-GeV high en.rgy beam en.rgy an. more than.100 mA average curren.. In.this paper, the multi-pass BBU of such a high en.rgy ERL is studied based on.the simulation.of a 3-GeV ERL light source that is proposed by KEK. This work is expected to provide a referen.e for future high en.rgy ERL projects.

关键词： en.rgy recovery lin.c beam breakup higher order mode