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    题名 作者 年代 出处 被引量
1The seasonal variations of δ^(18)O , Cl^- , Na^+ ,NO_3^- and Ca^(2+) in the snow and firn recovered from Princess Elizabeth Land, Antarctica显示文摘Snow and firn samples recovered from two snow pits (2.5 and 4.5m deep) and one 50-m firn core along the route of the 1996/1997 Chinese First Antarctic Inland Traverse Expedition in Princess Elizabeth Land, East Antarctica, have been measured for chemical composition and oxygen isotope ratio. In the two snow pits, the variations of NO3- are partly in phase with that of δ18O, while the variations of Cl- and Na+ are in inverse phase with that of δ18O.LI Zhongqin, ZHANG Mingjun, QIN Dahe, XIAO Cunde, TIAN Lide KANG Jiancheng and LI Jun Lanzhou Institute of Glaciology and Geocryology , Chinese Academy of Sciences , Lanzhou 730000, China Chinese Institute of Polar Research, Shanghai 200129, China Antarctic CRC and Australian Antarctic Division , Hobart, Australia Corresponding author 1999Chinese Science Bulletin1999,44,24:17
2Experimental studies on perturbed acoustic resonant spectroscopy by a small rock sample in a cylindrical cavity显示文摘A measurement system for acoustic resonant spectroscopy (ARS) is estab-lished,and the effects of resonant cavity geometry,inner perturbation samples and envi-ronmental temperature on the ARS are investigated. The ARSs of the small samples with various sizes and acoustic properties are measured. The results show that at the normal pressure,the resonant frequency decreases gradually with the increase of liquid tem-perature in the cylindrical cavity,while the resonant amplitude increases. At certain pres-sure and temperature,both the resonant frequency and the amplitude decrease greatly when there exist air bubbles inside the cavity fluid. The ARS is apparently affected by the sample porosity and the sample location in the resonant cavity. At the middle of the cavity,the resonant frequencies reach their maximum values for all of the measurement samples. The resonant frequencies of the porous rock samples are smaller than those of the com-pacted samples if other acoustic parameters are the same. As the sample is moved from the top to the middle of the cavity along its axis,the resonant amplitude increases gradu-ally for the compacted rocks while decreases for the unconsolidated rocks. Furthermore,the resonant amplitude increases firstly and then decreases if the porosity of the rock sample is relatively small. In addition,through the comparisons between the experimental and theoretical results,it is found that the effects of the acoustic parameters and sizes of the samples and the size of the cylindrical cavity on the laboratory results agree well with the theoretical ones qualitatively. These results may provide basic reference for the ex-periment study of rock acoustic properties in a low frequency using ARS.CHEN Dehua1,2,WANG Xiuming2,3,CONG Jiansheng1,XU Delong1,SONG Yanjie1 & MA Shuilong4 1. Department of Geophysics,Daqing Petroleum Institute,Daqing 163318,China 2. Institute of Acoustics,Chinese Academy of Sciences,Beijing 100080,China 3. Division of Petroleum,Australian Commonwealth Scientific and Industrial Research Organization,Bent-ley WA 6102,Australia 4. Daqing Testing and Technology Services Corporation,Daqing 163153,China 2006Science China(Physics,Mechanics & Astronomy)2006,49,6:8
3COMPUTATIONAL SCHEME FOR SIMULATING PLASMA DYNAM-ICS DURING PLASMA-IMMERSION ION IMPLANTATION显示文摘Plasma-immersion ion implantation (PIII) is a technique for implanting ions into conducting, semiconducting and insulating objects. In PIII, the object being treated is immersed in a plasma and pulsed to a large negative voltage (=-1 to-100 kV). The resulting sheath expands into the ambient plasma, extracting ions and accelerating them to the target. PIII has advantages over beam-line implantation in that large surfaces can be rapidly implanted, irregularly-shaped objects can be implanted without target manipulation, and surfaces that are not line-of-sight accessible can be treated. A two-dimensional, self-consistent model of plasma dynamics appropriate for PIII is described. The model is a hybrid, with Boltzmann electrons and kinetic ions, where the ion Vlasov equation is solved using the particle-in-cell (PIC) method. Solutions of the model give the time dependence of the ion flux, energy and impact angle at the target surface, together with the evolution of the sheath.T. E. Sheridan Plasma Research Laboratory, Australian National University, Canberra, ACT 0200, Australia 2000Acta Metallurgica Sinica(English Letters)2000,13,2:5
4Divergence-free Hardy space on R_(+)^(N)显示文摘LOU Zengjian & Alan MclntoshInstitute of Mathematics, Shantou University, Shantou 515063, China (email: zjlou@stu.edu.cn)Center for Mathematics and Its Applications, Mathematical Science Institute, Australian National University, 2004Science China Mathematics2004,47,2:2
5ON FORMATION OF TIDAL FRONTS IN COASTAL SEAS显示文摘An energy equation which includes the effects of potential energy,turbu-lent dissipation,heat flux and density flux due to fresh water discharge from estuaries isderived to evaluate the formation of frontal structures in coastal seas.Two different formsof tidal mixing criteria emerge which are the h/u^3 of Simoson and Hunter(1974)for openshallow water and the h/u of Nunes et al(1989)for estuaries.The theory is capable of predictiong tidal fronts in areas where both surface and lateral input of buoyancy are signifi-cant.The theory is applied to a tidal estuary and the locations of haline fronts which resultfrom the influence of the fresh water discharge are predicted.The effect of surface heatingon the formation and location of the frontal system is also discussed for the estuary.Wang Xiao-huaDepartment of Geography and Oceanography, University College, Australian Defence ForceAcademy, Canberra ACT 2600, Australia, Email :h-wang @ adfa.oz. auM. L. HeronPhysics Department, James Cook University Townsville, Q 4811, AustraliaChen WeiThe Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012,P. R. China 1998Journal of Hydrodynamics1998,10,3:2
6显示文摘Adrian Burton Andrew Treloar Deputy Directors Australian NationalData Service Designing for Discovery and Re-Use: the 4ANDS DataSharing Verbs’ Abroach to Service Deconqjosition 2009The InternationalJournal of Digital2009,2009,3:1
7Annual report of the Australian Gonococcal Surveillance Programme,2008显示文摘Australian Gonococcal Surveillance Programme Tapsall J 0,,03:1
8HEAT FLOW FOR YANG-MILLS-HIGGS FIELDS, PARTⅡ显示文摘This paper studies the long the behaviour and the blow up phenomenon of the heat flow for the Yang-Mills-Higgs field on a vector bundle over a compact 4-dimensional Riemannian manifold.FANG YI, HONG MINCHUN Centre for Mathematica and its Applications, School of Mathematical Sciences, The Australian National University, Canberra, ACT 0200, Australia. 2001Chinese Annals of Mathematics,Series B2001,22,2:1
9Annual report of the Auslralian gonococcal surueillance programme,2000显示文摘 2001Commun Dis Intell2001,25,:1
10Position statement No 2 physical restraint use in older people-revised 2005显示文摘Australian Society for Geriatric Medicine 2005Australas J Aging2005,24,4:1
11Australian Gono-coccal Surveillance Programme annual report, 2010 显示文摘Australian Gonococcal Surveillance Programme 2011CommunDis Intell2011,35,3:1
12Saline or albumin for fluid resuscitation in patients with traumatic brain injury显示文摘SAFE Study Investigators Australian and New Zealand Intensive Care Society Clinical Trials Group Australian Red Cross Blood Service 2007N Engl J Med2007,357,9:1
13Australianillicit drug intelligence program forensic intelligence driven policing显示文摘 2003Drug Net Asia2003,,3:1
14Design of Pinned Column Base Plates显示文摘Australian Steel Institute 2002Journal of The Australian Steel Institute2002,36,2:1
15Do Search and Selection Operators Play Important Roles in Multi-Objective Evolutionary Algorithms:A Case Study显示文摘Multi-objective Evolutionary Algorithm (MOEA) is becoming a hot research area and quite a few aspects of MOEAs have been studied and discussed. However there are still few literatures discussing the roles of search and selection operators in MOEAs. This paper studied their roles by solving a case of discrete Multi-objective Optimization Problem (MOP): Multi-objective TSP with a new MOEA. In the new MOEA, We adopt an efficient search operator, which has the properties of both crossover and mutation, to generate the new individuals and chose two selection operators: Family Competition and Population Competition with probabilities to realize selection. The simulation experiments showed that this new MOEA could get good uniform solutions representing the Pareto Front and outperformed SPEA in almost every simulation run on this problem. Furthermore, we analyzed its convergence property using finite Markov chain and proved that it could converge to Pareto Front with probability 1. We also find that theYan Zhen-yu, Kang Li-shan, Lin Guang-ming ,He MeiState Key Laboratory of Software Engineering, Wuhan University, Wuhan 430072, Hubei, ChinaSchool of Computer Science, UC, UNSW Australian Defence Force Academy, Northcott Drive, Canberra, ACT 2600 AustraliaCapital Bridge Securities Co. ,Ltd, Floor 42, Jinmao Tower, Shanghai 200030, China 2003Wuhan University Journal of Natural Sciences2003,8,S1:1
16Prac tiee note guidelines for landslide risk management 2007 显示文摘Australian Geomechanics Society Landslide Taskforce 2007Australian Geomechanics2007,42,1:1
17Time for global action on chronic disease显示文摘Australians for Global Action on NCDs 2011Med J Aust2011,194,15:1
18The epidemiology of meoonium aspiration syndmme:incidence,risk factors,therapies,and ouome显示文摘Dargavillf P A Copnell B Australian and New Zealand Neonatal Network 2006Pediatics2006,117,5:1
19Treatment of preterm labor with the oxytocin antagonist atosiban: adouble-blind, randomized, controlled comparison with salbutamol显示文摘French/Australian Atosiban Investigators Group 2001Eur J Obstet Gynecol Reprod Biol2001,98,2:1
20Guideline for Landslide Susceptibility,Hazard and Risk Zoning for Land Use Management显示文摘Australian Geomechanics Society Landslide Taskforce Landslide Zoning Working Group 2007Australian Geomechanics2007,42,1:1
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