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Journal of China University of Geosciences 2007年第2期18卷 142-147页

作者： Mansour s Al-Mokredi 胡光道 Bassam F Al Bassam Faculty of Earth Resources China University of Geosciences

Lineament extraction and analysis is one of the routine work in mapping medium and large areas using remote sensing data, most of which are satellite images. Landsat Enhanced Thematic Mapper （ETM） of 945×1 232 pixels subscene acquired on 21 March 2000 covering the northwestern part of Yunnan Province has been digitally processed using ER Mapper software. This article aims to produce lineament density map that predicts favorable zones for hydrothermal mineral occurrences and quantify spatial associations between the known hydrothermal mineral deposits. In the process of lineament extraction a number of image processing techniques were applied. The extracted lineaments were imported into MapGIs software and a suitable grid of 100 m×100 m was chosen. The Kriging method was used to create the lineament density map of the area. The results show that remote sensing data could be useful to extract the lineaments in the area. These lineaments are closely correlated with the faults obtained through other geological investigation methods. On comparing with field data the lineament-density map identifies two important high prospective zones, where large-scale deposits are already existing. In addition the map highlights unrecognized target areas that require follow up investigation.

关键词： lineament extraction hydrothermal mineral prediction Kriging method Heqing area(China)

Non-classical continuum theories for solid and fluent continua and some applications

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International Journal of smart and Nano Materials 2019年第1期10卷 28-89,I0003页

作者： K.s.surana D.Mysore J.N.Reddy Mechanical Engineering University of KansasLawrenceKSUSA Mechanical Engineering Texas A&M UniversityCollege StationTXUSA

This paper presents two specific thermodynamically consistent nonclassical continuum theories for solid and fluent *** first non-classical continuum theory for solid continua incorporates Jacobian of deformation in its entirety in the conservation and the balance laws and the derivation of the constitutive *** second non-classical continuum theory for solid continua considers Jacobian of deformation in its entirety as well as the Cosserat rotations in the conservation and balance laws as well as the constitutive *** first non-classical continuum theory for fluent continua presented here considers velocity gradient tensor in its *** second non-classical continuum theory for fluent continua considers velocity gradient tensor in its entirety as well as Cosserat rotation rates in the derivation of the conservation and balance laws and the constitutive *** the non-classical continuum theories for solid and fluent continua considered here incorporate additional physics of deformation due to rotations and rotation rates compared to classical continuum mechanics,the conservation and balance laws of classical continuum mechanics are shown to require modification as well as a new balance law balance of moment of moments is required to accommodate the new physics due to rotations and rotation ***’s micropolar,micromorphic and microstretch theories,couple stress theories and nonlocal theories are also discussed within the context of the non-classical theories presented here for solid and fluent *** applications of these theories are also discussed.

关键词： Non-classical continuum theories micropolar Jacobian of deformation internal rotations Cosserat rotations Cosserat rotation rates

Luminescence properties of calcium tungstate activated by lanthanide(Ⅲ) ions

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Journal of Rare Earths 2014年第3期32卷 221-225页

作者： Z.Piskula J.Czajka K.staninski s.Lis Faculty of Chemistry Adam Mickiewicz University Faculty of Chemical Technology and Engineering University of Technology and Life Sciences in Bydgoszcz

Calcium tungstate phosphors activated by the Ln3＋ ions （Ln-Pr, Nd, Tb, Yb） were synthesized by a traditional high-temperature solid-state method. The crystal structures and morphologies of the products were characterized by scanning electron microscopy （sEM）, x-ray powders diffraction （xRD） and infrared spectra （FT-1R）. The samples were fotmd to show luminescence properties （down-conversion, DC, at excitation wavelength 254 nm and up-conversion, UC, at excitation wavelength 980 nm）. CaWO4 doped with Tb3＋/yb3＋ showed green DC and UC luminescence characteristic of Tb（Ⅲ） ion in the range of 470-660 nm, cor- responding to the 5D4→7F6,5,4,3,2 electronic transition. CaWO4 doped with Pr3＋/Yb3＋ showed week blue, green and red （DC and UC） luminescence of Pr（Ⅲ） ion, in the wavelength region of 450-700 nm. Emission peaks were ascribed to the 3P1→3H4,5,6, 3P0→3H4,5,6, 3P1→3F2 and 3P0→3F2 transitions, respectively. CaWO4 doped with Nd3＋/yb3＋ phosphor emitted orange UC luminescence at 450-690 nm （2p3/2→4I15/2, 4G7/2→419/2,11/2,13/2） and strong near-infrared UC luminescence at 720-900 nm （4F7/2＋4s3/2→4419/2, 4F5/2＋2H3/2→419/2, 4F3/2→4I9/2） which is the characteristic of Nd（Ⅲ） ion.

关键词： lanthanides calcium tungstate up-conversion luminescence rare earths

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AZ91D表面的交流微弧氧化快速成膜

稀有金属材料与工程 2013年第11期42卷 2410-2415页

作者：杜云慧张鹏王玉洁郝志强北京交通大学北京100044

采用交流微弧氧化处理技术,在氟化钾+氢氧化钾处理液中,对AZ91D镁合金进行了表面处理研究。建立了膜层厚度与处理参数之间的关系模型,确定膜层的组织构成,讨论膜层生长机理,优化快速成膜技术参数。结果表明:在氟化钾浓度为979 g/L、氢... 详细信息

采用交流微弧氧化处理技术,在氟化钾+氢氧化钾处理液中,对AZ91D镁合金进行了表面处理研究。建立了膜层厚度与处理参数之间的关系模型,确定膜层的组织构成,讨论膜层生长机理,优化快速成膜技术参数。结果表明:在氟化钾浓度为979 g/L、氢氧化钾浓度为349 g/L、调压器输出电压为81 V、处理液温度为32℃的条件下,对工件处理88 s,就可形成30μm厚的由氟化镁和氧化镁构成的致密表面膜层,该成膜速度较其它处理技术的成膜速度至少提高了7倍。

关键词： AZ91D镁合金表面处理交流微弧氧化快速成膜

The most important questions in cancer research and clinical oncology

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Chinese Journal of Cancer 2017年第2期36卷 1-7页

作者： Joseph T. s. Wee sharon shuxian Poh Division of Radiation Oncology National Cancer Centre duke-NUsMedicalschool

specific research foci:(1) Mouse models of gamma-herpes virus-68(γHV-68) and polyomavirus(Py V) infections during neonatal versus adult life.(2) For human papilloma virus(HPV)-positive oropharyngeal carcinoma(OPC)—(a) Asking the question: Is oral sex a powerful carcinogen?(b) Examining the evidence for the vertical transmission of HPV infection.(c) Examining the relationship between HPV and Epstein–Barr virus(EBV) infections and nasopharyngeal cancer(NPC) in West European, East European, and East Asian countries.(d) Examining the association between HPVpositive OPC and human leukocyte antigen(HLA).(3) For non-smoking East Asian female lung adenocarcinoma—(a) Examining the incidence trends of HPV-positive OPC and female lung adenocarcinoma according to birth cohorts.(b) Examining the association between female lung adenocarcinoma and HPV.(c) Examining the associations of lung adenocarcinoma with immune modulating factors.(4) For triple-negative breast carcinoma(TNBC) in East Asians—(a) Examining the association between TNBC and HPV.(b) Examining the unique epidemiological characteristics of patients with TNBC. A summary "epidemiological" model tying some of these findings together.

关键词： HPV The most important questions in cancer research and clinical oncology

Characterization and performance of the Apollon short-focal-area facility following its commissioning at 1 PW level

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Matter and Radiation at Extremes 2021年第6期6卷 12-25页

作者： K.Burdonov A.Fazzini V.Lelasseux J.Albrecht P.Antici Y.Ayoul A.Beluze D.Cavanna T.Ceccotti M.Chabanis A.Chaleil s.N.Chen Z.Chen F.Consoli M.Cuciuc x.Davoine J.P.Delaneau E.d’Humieres J.-L.dubois C.Evrard E.Filippov A.Freneaux P.Forestier-Colleoni L.Gremillet V.Horny L.Lancia L.Lecherbourg N.Lebas A.Leblanc W.Ma L.Martin F.Negoita J.-L.Paillard D.Papadopoulos F.Perez s.Pikuz G.Qi F.Quere L.Ranc P.-A.soderstrom M.sciscio s.sun s.Vallieres P.Wang W.Yao F.Mathieu P.Audebert J.Fuchs LULI–CNRs CEASorbonne UniversiteEcole PolytechniqueInstitut Polytechnique de ParisF-91128 Palaiseau CedexFrance sorbonne Universite Observatoire de ParisUniversite PSLCNRSLERMAF-75005 ParisFrance IAP Russian Academy of Sciences603155 Nizhny NovgorodRussia INRs-EMT 1650Boulevard Lionel-BouletVarennesQuebec J3X 1S2Canada Universite Paris-saclay CEACNRSLIDYL91191Gif-sur-YvetteFrance Universite Paris-saclay CEALMCE91680 Bruy`eres-le-ChˆatelFrance “Horia Hulubei”National Institute for Physics and Nuclear Engineering 30 Reactorului StreetRO-077125 Bucharest-MagureleRomania ENEA Fusion and Technologies for Nuclear Safety DepartmentC.R.FrascatiVia E.Fermi 4500044 FrascatiItaly University of Bordeaux Centre Lasers Intenses et ApplicationsCNRSCEAUMR 5107F-33405 TalenceFrance Joint Institute for High Temperatures RAS125412 MoscowRussia Laboratoire d’Optique Appliquee Ecole Polytechnique–ENSTA–CNRS–Institut Polytechnique de ParisPalaiseauFrance state Key Laboratory of Nuclear Physics and Technology School of PhysicsCAPTPeking UniversityBeijing 100871China Laboratoire Charles Fabry Institut d’Optique Graduate SchoolCNRSUniversite Paris-Saclay91127 Palaiseau CedexFrance

We present the results of the first commissioning phase of the short-focal-length area of the Apollon laser facility(located in saclay,France),which was performed with the first available laser beam(F2),scaled to a nominal power of 1 *** the conditions that were tested,this beam delivered on-target pulses of 10 J average energy and 24 fs *** diagnostics were fielded to assess the performance of the *** on-target focal spot and its spatial stability,the temporal intensity profile prior to the main pulse,and the resulting density gradient formed at the irradiated side of solid targets have been thoroughly characterized,with the goal of helping users design future *** of energetic electrons,ions,and electromagnetic radiation were recorded,showing good laser-to-target coupling efficiency and an overall performance comparable to that of similar international *** will be followed in 2022 by a further commissioning stage at the multipetawatt level.

关键词： performance beam nominal

Unfiltered Diesel Engine Exhaust Treatment by Discharge Plasma: Effect of soot Oxidation

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Plasma science and Technology 2004年第5期6卷 2475-2480页

作者： B.s.Rajanikanth subhankar Das A.D.srinivasan Dept. of High Voltage Engineering Indian Institute of Science Bangalore 560012 IndiaDept. of High Voltage Engineering Indian Institute of Science Bangalore 560012 IndiaDept. of High Voltage Engineering Indian Institute of Science Bangalore 560012 India

A cascaded system of electrical discharges (Non-thermal plasma), catalyst andadsorption process was investigated for the removal of oxides of nitrogen (NO_x) and carbonmonoxide (CO) from a Diesel engine raw exhaust. The three processes were separately studied first,and then the cascaded processes, namely plasma-catalyst and plasma-adsorbent, were investigated. Inthis paper main emphasis was laid on the effect of carbonaceous soot oxidation on the plasmatreatment process. While the cascaded plasma-catalyst process exhibits a higher CO removal, thecascaded plasma-adsorbent process exhibits a higher NO_x removal. The experiments were conductedunder no-load. The plasma and adsorbent reactors were kept at room temperature throughout theexperiment while the catalyst reactor was kept at 200℃ / 300℃.

关键词： discharge plasma diesel engine exhaust catalyst adsorbent non-thermalplasma

Review of heavy-ion inertial fusion physics

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Matter and Radiation at Extremes 2016年第2期1卷 89-113页

作者： s.Kawata T.Karino A.I.Ogoyski Graduate school of Engineering Utsunomiya UniversityYohtoh 7-1-2Utsunomiya321-8585Japan CORE(Center for Optical Research and Education) Utsunomiya UniversityYohtoh 7-1-2Utsunomiya321-8585Japan Department of Physics Technical University of VarnaUlitskaStudentska 1VarnaBulgaria

In this review paper on heavy ion inertial fusion(HIF),the state-of-the-art scientific results are presented and discussed on the HIF physics,including physics of the heavy ion beam(HIB)transport in a fusion reactor,the HIBs-ion illumination on a direct-drive fuel target,the fuel target physics,the uniformity of the HIF target implosion,the smoothing mechanisms of the target implosion non-uniformity and the robust target *** HIB has remarkable preferable features to release the fusion energy in inertial fusion:in particle accelerators HIBs are generated with a high driver efficiency of~30%-40%,and the HIB ions deposit their energy inside of ***,a requirement for the fusion target energy gain is relatively low,that would be~50-70 to operate a HIF fusion reactor with the standard energy output of 1 GWof *** HIF reactor operation frequency would be~10-15 Hz or ***-MJ HIBs illuminate a fusion fuel target,and the fuel target is imploded to about a thousand times of the solid *** the DT fuel is ignited and *** HIB ion deposition range is defined by the HIB ions stopping length,which would be~1 mm or so depending on the ***,a relatively large density-scale length appears in the fuel target *** of the critical issues in inertial fusion would be a spherically uniform target compression,which would be degraded by a non-uniform *** implosion non-uniformity would be introduced by the Rayleigh-Taylor(R-T)instability,and the large densitygradient-scale length helps to reduce the R-T growth *** the other hand,the large scale length of the HIB ions stopping range suggests that the temperature at the energy deposition layer in a HIF target does not reach a very-high temperature:normally about 300 eV or so is realized in the energy absorption region,and that a direct-drive target would be appropriate in *** addition,the HIB accelerators are operated repetitively and *** precis

关键词： Heavy ion inertial fusion Heavy ion fusion reactor system Fusion fuel target implosion Implosion dynamics Heavy ion beam transport Rayleigh-Taylor instability stabilization Robust fusion system

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零排放燃气轮机的空气动力学特性

工程热物理学报 2007年第4期28卷 561-564页

作者：单晓明 s A sjolander s K Roberts 南京航空航天大学能源与动力学院加拿大卡尔顿大学

本文对采用二氧化碳作为基本工作流体的半闭环燃气轮机循环的空气动力学特性进行了详尽的分析。结果表明,不同工作流体的比热比值对压气机的压比、等熵效率及临界堵塞质量流量影响很大,并详细阐述了一种比热比对透平机械性能影响的修正... 详细信息

本文对采用二氧化碳作为基本工作流体的半闭环燃气轮机循环的空气动力学特性进行了详尽的分析。结果表明,不同工作流体的比热比值对压气机的压比、等熵效率及临界堵塞质量流量影响很大,并详细阐述了一种比热比对透平机械性能影响的修正方法,进而提出了一种零排放发动机的设计新思路,揭示了最初为空气工质而设计的压气机可以直接用于CO_2零排放发动机中。

关键词： CO2零排放燃气轮机半闭环空气动力学

structure and Thermal Parameters of Ni_(20)Pd_(80) Alloy

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Journal of Materials science & Technology 2009年第2期25卷 208-210页

作者： s. Ahmad A.B. Ziya A. Aziz Z.I. Zafar Department of Physics Bahauddin Zakariya University Department of Chemistry Bahauddin Zakariya University

The structure and thermal parameters of Ni20Pd80 alloy were studied by x-ray diffraction（xRD）. The diffraction experiments performed in the temperature range of 308-1100 K revealed that the alloy formed a face centered cubic （fcc） Al-type structure. The temperature dependence of the lattice parameters was investigated by using the Bragg line displacement method showing that the lattice parameter increases with the increase of temperature. The mean linear thermal expansion （MLTE（%））, coefficient of thermal expansion （CTE, α）, the characteristic Debye temperature （（θD） and mean square amplitudes of vibration were determined from xRD data. The value of Debye temperature was found to be 253 K. It was found that temperature factor was independent of the static displacements.

关键词： Alloys structure Thermal parameters x-ray diffraction (xRD)