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Molecular Oxygen Abundance in Galactic Massive Star f.rmation Regions Based on SWAS Observations

Research in Astronomy and Astrophysics 2024年第9期24卷 83-98页

作者： Bing-Ru Wang Di Li Paul f.Goldsmith j.ngwen Wu Chao-Wei Tsai Donghui Quan Xia Zhang j.nzhi Wang Gary j.Melnick j.n-Zeng Li Gary A.f.ller j.nj.n Xie National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Tsinghua University Beijing 100084China University of.Chinese Academy of.Sciences Beijing 100049China Research Center f.r Astronomical Computing Zhejiang LaboratoryHangzhou 311100China j.t Propulsion Laboratory California Institute of TechnologyPasadenaCA 91109USA Institute f.r f.ontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China Xinj.ang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Guangxi Key Laboratory f.r Relativistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Center f.r Astrophysics Harvard&Smithsonian60 Garden StreetMS 66CambridgeMA 02138USA j.drell Bank Center f.r Astrophysics Department of Physics&AstronomyUniversity of ManchesterOxford RoadManchesterM139PLUK I.Physikalisches Institut University of CologneZülpicher Str.7750937 KölnGermany

Molecular oxygen abundance is a key parameter in understanding the chemical network of.the interstellar *** estimate the molecular oxygen column density and abundance f.r a sample of.Galactic massive star f.rmation regions based on observations f.om the Submillimiter Wave Astronomy Satellite(SWAS)*** obtained an averaged O_(2)spectrum based on this sample using the(SWAS)survey data(O_(2),487.249 GHz,N=3-1,j.3-2).No emission or absorption f.ature is seen around the supposed central velocity with a total integration time of.t_(total)=8.67×10^(3)hr and an rms noise per channel of.1.45 m *** a kinetic temperature T_(kin)=30 K,we derive the 3σupper limit of.the O_(2)column density to be 3.3×10^(15)cm^(-2),close to the lowest values reported in Galactic massive star f.rmation regions in previous *** corresponding O_(2)abundance upper limit is6.7×10^(-8),lower than all previous results based on SWAS observations and is close to the lowest reported value in massive star f.rmation *** a galactic scale,our statistical results conf.rm a generally low O_(2)abundance f.r Galactic massive star f.rmation *** abundance is also lower than results reported in extragalactic sources.

关键词： ISM:molecules galaxies:abundances ISM:lines and bands Galaxy:abundances

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f.nctionalization of.AuMSS nanorods towards more ef.ective cancer therapies

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Nano Research 2019年第4期12卷 719-732页

作者： Carolina f. Rodrigues Telma A. j.cinto Andre f. Moreira Elisabete C. Costa Sonia P. Miguel Ilidio j. Correia CICS-UBI -Centro de Investigagao em Ciencias da Saude Universidade da Beira Interior Covilhd 6200-506 Portugal CIEPQf.- Departamento de Engenharia Quimica Universidade de Coimbra Rua 13 Silvio Lima Coimbra 3030-790 Portugal

The applicatio n of.nano particles as selective drug delivery platf.rms arises as one the most promising therapeutic strategies in the biomedical f.eld. Such systems can encapsulate drugs, prevent its premature degradation, transport and promote the drugs specif.c delivery to the target site. Among the dif.erent nanostructures, gold-core mesoporous silica shell (AuMSS) nanorods have been one of.the most explored due to their unique physical and chemical properties. The mesoporous silica biocompatibility, high surf.ce area that can be easily f.nctionalized, tubular pores that can store the drugs, conj.gated with the intrinsic capacity of.gold nanorod to absorb near-inf.ared radiation, allows the combination of.hyperthermia (i.e., photothermal ef.ect) with drug delivery, making them a nanoplatf.rms with a huge potential f.r cancer therapy. Nevertheless, the successf.l applicati on of.AuMSS nanoparticles as an ef.ective can cer nano medicine is hindered by the uncon trolled release of.the therapeutic payloads, limited blood circulation time and unf.vorable pharmacokinetics. In this review, an overview of.the modif.cati ons perf.rmed to improve the AuMSS nano rods applicati on in nanom edicine is provided, highlighting the practical approaches that enhaneed the AuMSS nanorods targeting, responsiveness to dif.erent stimuli, and blood circulation time. f.rther, the basics of.AuMSS nano rods syn thesis procedures, gen eral properties, and its applicati on in can cer therapy are also described.

关键词： gold nano rods silica surf.ce modif.cations targeting cancer

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f.ll-band error control and crack-f.ee surf.ce f.brication techniques f.r ultra-precision f.y cutting of.large-aperture KDP crystals

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f.ontiers of.Mechanical Engineering 2017年第2期12卷 193-202页

作者： f. H. ZHANG S. f. WANG C. H. AN j. WANG Q. XU Department of.Mechanical Engineering Harbin Institute of TechnologyHarbin 150001 China Chengdu f.ne Optical Engineering Research Center Chengdu 610041China

Large-aperture potassium dihydrogen phos- phate （KDP） crystals are widely used in the laser path of.inertial conf.nement f.sion （ICf. systems. The most common method of.manuf.cturing half.meter KDP crystals is ultra-precision f.y cutting. When processing KDP crystals by ultra-precision f.y cutting, the dynamic characteristics of.the f.y cutting machine and f.uctuations in the f.y cutting environment are translated into surf.ce errors at dif.erent spatial f.equency bands. These machin- ing errors should be suppressed ef.ectively to guarantee that KDP crystals meet the f.ll-band machining accuracy specif.ed in the evaluation index. In this study, the anisotropic machinability of.KDP crystals and the causes of.typical surf.ce errors in ultra-precision f.y cutting of.the material are investigated. The structures of.the f.y cutting machine and existing processing parameters are optimized to improve the machined surf.ce quality. The f.ndings are theoretically and practically important in the development of.high-energy laser systems in China.

关键词： ultra-precision f.y cutting large-aperture KDP crystals spatial f.equency processing error

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Transverse approach between real world concentrations of.SO_2, NO_2, BTEX, aldehyde emissions and corrosion in the Grand Mare tunnel

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j.urnal of.Environmental Sciences 2012年第7期24卷 1240-1250页

作者： I. Ameur-Bouddabbous j. Kasperek A. Barbier f. Harel B. Hannoyer GPM-UMR 6634 CNRS. Uf. Science and Technology University of Rouen BP 12 76801 Saint Etienne du Rouvray Cedex France LCAE Chemistry Department Science Faculty of Tunis Campus Universitaire 2092 El Manar Tunis Tunisie DIRNO Rue de Verdun 76160 Darnetal France

With regard to automotive traf.ic, a tunnel-type semi enclosed atmosphere is characterized by a higher concentration of.gaseous pollutants than on urban traf.ic roads and highlights the gaseous ef.luent species having an impact on material degradation. Theref.re, a transverse approach between air quality and its consequences upon the longevity of.materials is necessary, implying better knowledge of.tunnel atmosphere and a better understanding of.material degradation inside a tunnel f.r operating administration. Gaseous pollutant measurements carried out in a road tunnel in Rouen （Normandy） give the real world traf.ic concentrations of.experimental exposure conditions. The sampling campaigns, achieved in summer and winter include SO2, NO2, BTEX and aldehyde analyses. Ef.luent prof.les in the upward and downward tubes have been established. The current work shows that SO2, NO〉 f.rmaldehyde, acetaldehyde, propanal and butanal must be considered in the degradation process of.materials in a stuf.y environment. As regards NO,, its concentration depends on the modif.cation of.the automotive f.eet. The total aldehyde concentrations indicate no particular trend between the two bores. f.rmaldehyde, acetaldehyde, propanal, butanal and acrolein species are the most abundant species emitted by vehicles and represent 90% to 95% of.the total aldehyde emissions.

关键词： SO2 tunnel study aldehydes NO2 BTEX atmospheric corrosion

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In situ characterization of.particle f.rmation in spray f.ame synthesis using wide-angle light scattering

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Particuology 2024年第3期86卷 304-312页

作者： Simon Aβmann f.anz j.T.Huber Stef.n Will Lehrstuhl f.r Technische Thermodynamik(LTT) Friedrich-Alexander-Universitat Erlangen-Nürnberg(FAU)Erlangen91058Germany Erlangen Graduate Schoolin Advanced Optical Technologies(SAOT) Friedrich-Alexander-Universitat Erlangen-Nurnberg(FAU)Erlangen91052Germany Competence Unit Engineering of.Advanced Materials(EAM) Friedrich-Alexander-Universitat Erlangen-Nürnberg(FAU)Erlangen91052Germany

Wide-angle light scattering(WALS)was used f.r in situ measurements of.droplet and nanoparticle size distributions during the synthesis of.titania and iron oxide particles f.om liquid precursor solutions in the standardized SpraySyn burner f.r spray f.ame *** was synthesized f.om titanium tetraisopropoxide(TTIP)and iron oxide f.om iron(II)nitrate nonahydrate(INN)using ethanol(EtOH)as *** images were taken at heights up to 120 mm above the burner surf.ce and classif.ed into droplet and particle *** size distributions were derived f.om a sequential analysis of.scattering data containing the oscillating Mie pattern,the lognormal size distribution parameters f.r spherical and f.actal particle f.actions f.om a multivariate approach on averaged particle scattering *** results show that the precursor addition leads to altered evaporation behavior and even droplet disruption probably induced by puf.ing or micro-explosions compared to pure *** the case of.TTIP(a hygroscopic alkoxide),the synthesis of.a large f.action of.spheres was observed,while the nitrate INN leads to the f.rmation of.mostly f.actal aggregates.

关键词： Spray f.ame synthesis Metal oxide particles Elastic light scattering Droplet size distribution Nanoparticle morphology Particle size distribution

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A SIMPLE PRECONDITIONED DOMAIN DECOMPOSITION METHOD f.R ELECTROMAGNETIC SCATTERING PROBLEMS

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j.urnal of.Computational Mathematics 2013年第1期31卷 1-21页

作者： f. Alouges j. Bo-urguignon-Mirebeau - I D.P. Levadoux CMAP Ecole Polytechnique Palaiseau France Laboratoire de Mathdmatiques Universitd Paris-Sud XI Orsay France DEMR-Sf. ONERA Palaiseau France

We present a domain decomposition method （DDM） devoted to the iterative solution of.time-harmonic electromagnetic scattering problems, involving large and resonant cavities. This DDM uses the electric f.eld integral equation （Ef.E） f.r the solution of.Maxwell problems in both interior and exterior subdomains, and we propose a simple preconditioner f.r the global method, based on the single layer operator restricted to the f.ctitious interf.ce between the two subdomains.

关键词： Electromagnetism integral equations methods Domain decomposition meth-ods Preconditioning Cavities.

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CORBA-Based Discrete Event Simulation System

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j.urnal of.Systems Engineering and Electronics 2001年第3期12卷 16-19页

作者： Luo, j. Zheng, S. Zhong, L. Duan, f. Neocomputer Research Xi'an Jiaotong University Xi'an 710049 China

The CORBA technique is an integration of.the obj.ct-oriented conception and distributed computing technique. It can make the application within distributed heterogeneous environments reusable, portable and interoperable. The architecture of.CORBA-based discrete event simulation systems is presented and the interf.ce of.distributed simulation obj.cts (DSO) is def.ned in this paper af.er the DSO is identif.ed and the synchronization mechanism among DSO is discussed.

关键词： Computational methods Computer architecture Computer simulation Computer sof.ware portability Computer sof.ware reusability Interf.ces (computer) Interoperability Obj.ct oriented programming Synchronization

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STCf.conceptual design report (Volume 1): Physics & detector

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f.ontiers of.physics 2024年第1期19卷 1-154页

作者： M.Achasov X.C.Ai L.P.An R.Aliberti Q.An X.Z.Bai Y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov D.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.H.Bu f.M.Cai H.Cai j.j.Cao Q.H.Cao X.Cao Z.Cao Q.Chang K.T.Chao D.Y.Chen H.Chen H.X.Chen j.f.Chen K.Chen L.L.Chen P.Chen S.L.Chen S.M.Chen S.Chen S.P.Chen W.Chen X.Chen X.f.Chen X.R.Chen Y.Chen Y.Q.Chen H.Y.Cheng j.Cheng S.Cheng T.G.Cheng j.P.Dai L.Y.Dai X.C.Dai D.Dedovich A.Denig I.Denisenko j.M.Dias D.Z.Ding L.Y.Dong W.H.Dong V.Druzhinin D.S.Du Y.j.Du Z.G.Du L.M.Duan D.Epif.nov Y.L.f.n S.S.f.ng Z.j.f.ng G.f.dotovich C.Q.f.ng X.f.ng Y.T.f.ng j.L.f. j.Gao Y.N.Gao P.S.Ge C.Q.Geng L.S.Geng A.Gilman L.Gong T.Gong B.Gou W.Gradl j.L.Gu A.Guevara L.C.Gui A.Q.Guo f.K.Guo j.C.Guo j.Guo Y.P.Guo Z.H.Guo A.Guskov K.L.Han L.Han M.Han X.Q.Hao j.B.He S.Q.He X.G.He Y.L.He Z.B.He Z.X.Heng B.L.Hou T.j.Hou Y.R.Hou C.Y.Hu H.M.Hu K.Hu R.j.Hu W.H.Hu X.H.Hu Y.C.Hu j.Hua G.S.Huang j.S.Huang M.Huang Q.Y.Huang W.Q.Huang X.T.Huang X.j.Huang Y.B.Huang Y.S.Huang N.Hüsken V.Ivanov Q.P.j. j.j.j.a S.j.a Z.K.j.a H.B.j.ang j.j.ang S.Z.j.ang j.B.j.ao Z.j.ao H.j.j.ng X.L.Kang X.S.Kang B.C.Ke M.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin Y.Lei E.Levichev C.H.Li C.Li D.Y.Li f.Li G.Li G.Li H.B.Li H.Li H.N.Li H.j.Li H.L.Li j.M.Li j.Li L.Li L.Li L.Y.Li N.Li P.R.Li R.H.Li S.Li T.Li W.j.Li X.Li X.H.Li X.Q.Li X.H.Li Y.Li Y.Y.Li Z.j.Li H.Liang j.H.Liang Y.T.Liang G.R.Liao L.Z.Liao Y.Liao C.X.Lin D.X.Lin X.S.Lin B.j.Liu C.W.Liu D.Liu f.Liu G.M.Liu H.B.Liu j.Liu j.j.Liu j.B.Liu K.Liu K.Y.Liu K.Liu L.Liu Q.Liu S.B.Liu T.Liu X.Liu Y.W.Liu Y.Liu Y.L.Liu Z.Q.Liu Z.Y.Liu Z.W.Liu I.Logashenko Y.Long C.G.Lu j.X.Lu N.Lu Q.f.Lü Y.Lu Y.Lu Z.Lu P.Lukin f.j.Luo T.Luo X.f.Luo Y.H.Luo H.j.Lyu X.R.Lyu j.P.Ma P.Ma Y.Ma Y.M.Ma f.Maas S.Malde D.Matvienko Z.X.Meng R.Mitchell A.Nef.diev Y.Nef.dov S.L.Olsen Q.Ouyang P.Pakhlov G.Pakhlova X.Pan Y.Pan E.Passemar Y.P.Pei H.P.Peng L.Peng X.Y.Peng X.j.Peng K.Peters S.Pivovarov E.Pyata B.B.Qi Y.Q.Qi W.B.Qian Y.Qian C.f.Qiao j.j.Qin j.j.Qin L.Q.Qin X.S.Qin T.L.Qiu j.Rademacker C.f.Redmer H.Y.Sang Anhui University Hefei 230039China Beihang University Beijing 100191China Budker Institute of.Nuclear Physics Novosibirsk 630090Russia CAS Key Laboratory of.Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish Laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal University Wuhan 430079China Central South University Changsha 410083China China University of.Geosciences Wuhan 430074China China University of.Mining and Technology Xuzhou 221116China École Polytechnique f.dérale de Lausanne(EPf.) LausanneSwitzerland f.dan University Shanghai 200433China Goethe University f.ankf.rt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China Hangzhou Institute f.r Advanced Study UCASHangzhou 310024China Hebei Normal University Shijiazhuang 050024China Hebei University Baoding 071002China Hef.i University of.Technology Hefei 230601China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China High Energy Physics Center Chung-Ang UniversitySeoul 06974Korea Higher School of.Economy 11 Pokrovsky Bulvar Moscow 109028Russia Huangshan University Huangshan 245000China Hubei University of.Automotive Technology Shiyan 442002China Hunan Normal University Changsha 410081China Hunan University of.Science and Technology Xiangtan 411201China Hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner Mongolia University Hohhot 010021China Institute of.Advanced Science f.cilities Shenzhen 518107China Institute of.High Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of.Modern Physics Chinese Academy of SciencesLanzhou 730000China Institute of.Physics Academia SinicaTaipeiTaiwan 11529China Institute of.Theoretical Physics Chinese Academy of SciencesBeijing 100190China j.lin University Changch

The superτ-charm f.cility(STCf.is an electron–positron collider proposed by the Chinese particle physics *** is designed to operate in a center-of.mass energy range f.om 2 to 7 GeV with a peak luminosity of.0.5×10^(35) cm^(–2)·s^(–1) or *** STCf.will produce a data sample about a f.ctor of.100 larger than that of.the presentτ-charm f.ctory—the BEPCII,providing a unique platf.rm f.r exploring the asymmetry of.matter-antimatter(charge-parity violation),in-depth studies of.the internal structure of.hadrons and the nature of.non-perturbative strong interactions,as well as searching f.r exotic hadrons and physics beyond the Standard *** STCf.proj.ct in China is under development with an extensive R&D *** document presents the physics opportunities at the STCf.describes conceptual designs of.the STCf.detector system,and discusses f.ture plans f.r detector R&D and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity STCf.detector conceptual design

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Systematic position of.Myrtama Ovcz. & Kinz. based on morphological and nrDNA ITS sequence evidence

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Chinese Science Bulletin 2006年第A1期51卷 117-123页

作者： ZHANG Daoyuan ZHANG Yuan GASKIN j. f. CHEN Zhiduan Turpan Eremophytes Botanical Garden Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Ururaqi 830011 China Laboratory of.Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Beijing 100093 China USDA-ARS-NPARL PO Box 463 Sidney MT 59270 USA

Myrtama 是以它的词法怪癖在 1970 年代从 Myricaria elegans Royle 说出的一个类。自从它的开始，这个类和它的系统的位置的建立被争论了。它从 Tamaricaceae 的 10 种类的序列被报导，并且由 PAUP 4.0b8 和贝叶斯的推理分析了重建发... 详细信息

Myrtama 是以它的词法怪癖在 1970 年代从 Myricaria elegans Royle 说出的一个类。自从它的开始，这个类和它的系统的位置的建立被争论了。它从 Tamaricaceae 的 10 种类的序列被报导，并且由 PAUP 4.0b8 和贝叶斯的推理分析了重建发展史。一个单身者它的树分别地从最大的吝啬和 MrBayes 分析被产生。分子的数据集合作为一个姐妹组作为 monophyletic 类，和 Myrtama 为 Tamarix 和 Myricaria 显示出强壮的支持到类 Myricaria。基于词法差别，一棵单个词法树也被产生，在哪个二个主要的系存在但是 Myrtama 是到 Tamarix，而非 Myricaria 的一个姐妹组。从 DNA 序列和 Myicaria elegans 应该被放进既不 Myricaria 也不 Tamarix，但是放在它的自己的 monotypic 类的词法人物支持的证据。

关键词： ITS序列形态特征系统位置 DNA测序

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A decomposition of.light’s spin angular momentum density

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Light(Science & Applications) 2024年第8期13卷 1578-1589页

作者： Alex j.Vernon Sebastian Golat Claire Rigouzzo Eugene A.Lim f.ancisco j.Rodríguez-f.rtuño Department of.Physics King’s College LondonStrandLondon WC2R 2LSUK London Centre f.r Nanotechnology LondonUK

Light carries intrinsic spin angular momentum(SAM)when the electric or magnetic f.eld vector rotates over time.A f.miliar vector equation calculates the direction of.light’s SAM density using the right-hand rule with ref.rence to the electric and magnetic polarisation *** Maxwell’s equations,this vector equation can be decomposed into a sum of.two distinct terms,akin to the well-known Poynting vector decomposition into orbital and spin *** present the f.rst general study of.this spin decomposition,showing that the two terms,which we call canonical and Poynting spin,are chiral analogies to the canonical and spin momenta of.light in its interaction with *** canonical momentum,canonical spin is directly *** canonical and Poynting spin incorporate spatial variation of.the electric and magnetic f.elds and are inf.uenced by optical *** decomposition allows us to show that a linearly polarised vortex beam,which has no total SAM,can nevertheless exert longitudinal chiral pressure due to equal and opposite canonical and Poynting spins.

关键词： canonical momentum angular

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