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| 1 | Preventing DC Over-voltage in Multi-terminal HVDC Transmission显示文摘This paper is concerned with power reduction control which is used to avoid DC over-voltage for multiterminal HVDC transmission of offshore wind power.Voltages and frequencies of offshore AC wind farm networks are used for transmitting control signals for the power reduction control.These methods do not require fast communication.Power reduction sharing among the offshore wind farms using the different control signals is analysed.The control systems are also compared against the DC chopper method to prevent a DC overvoltage.Simulation and experiments are carried out to evaluate the control systems. | Oluwole D.Adeuyi Marc Cheah-Mane Jun Liang Luke Livermore Qing Mu | 2015 | CSEE Journal of Power and Energy Systems2015，1，1： | 9 |
| 2 | CONTROLLING HIGHTEMPERATURE DEFORMATION BY VARYING MICROSTRUCTURE IN A Ti47Al2Cr2Nb ALLOY显示文摘A Ti 47Al 2Cr 2Nb alloy was made by powder extrusion methods. By varying extrusion temperature, different microstructures were produced. At an extrusion temperature of 1 400 ℃ (above α transus), a uniform, fully lamellar structure was observed. In contrast, when powders were extruded at 1 150 ℃, an inhomogeneous microstructure consisting of γ,α 2 and metastable β phases was obtained. It was demonstrated that, while alloy extruded at 1 400 ℃ exhibited an excellent creep resistance, alloy with the same composition extruded at 1 150 ℃ exhibited superplasticity. The good creep resistance was resulted from the presence of fine lamellae which restrict dislocation slip within γ grains. These fine lamellae also promote the nucleation of deformation twins which impede dislocation glide along the interfaces ( γ/γ and γ/α 2) and, thus, reduces creep rate. In the case of low temperature extrusion, an elongation value of over 300% was obtained at a strain rate of 2×10 -5 s -1 and at a temperature as low as 800 ℃, which is close to the ductile to brittle transition temperature. This is in contrast to the prior major observations of superplastic behaviors in TiAl in which typical temperatures of 1 000 ℃ have usually been required for superplasticity. It was proposed that the occurrence of superplasticity at 800 ℃ is caused by the presence of a B2 phase which, during superplastic deformation (grain boundary sliding), accommodates sliding strains to reduce the propensity for cavitation at grain triple junctions and, thus, delays the fracture process. | T.G.Nieh and J.Wadsworth Lawrence Livermore National Laboratory, L-369, P.O.Box 808, Livermore, CA 94550, U.S.A. | 1999 | 中国有色金属学会会刊:英文版1999，9，S1： | 5 |
| 3 | Multiplex PCR for genes encoding prevalent OXA carbapenemases in Acinetobacter spp.显示文摘 | Neil Woodford Matthew J. Ellington Juliana M. Coelho Jane F. Turton M. Elaina Ward Susan Brown Sebastian G.B. Amyes David M. Livermore | 2006 | International Journal of Antimicrobial Agents2006，，4： | 2 |
| 4 | EFFECTS OF ALLOYING ELEMENTS ON CREEP OF TiAl ALLOYS WITH FINELAMELLAR STRUCTURES显示文摘Creep experiments have been conducted on five powder metallurgy TiAl alloys with fine grains (65~80 μm), fine lamellar spacings (0.1~0.16 μm), and different compositions [Ti 47Al(+Cr, Nb, Ta, W, Si)] at temperatures of 760 ℃ and 815 ℃ and stresses from 35 to 723 MPa. Results show that at a given lamellar spacing 1% Nb(mole fraction) with 1% Ta and replacing 0.2% Ta with 0.2% W induced little effect, but addition of 0.3% Si decreased the creep resistance by a factor of 3~4 under otherwise identical conditions. These different effects of different alloying elements are interpreted in terms of the interaction of alloy segregants with misfit and/or misorientaion dislocations at the lamellar interface. That is, the interaction retards or facilitates the climb of interfacial dislocations, which is rate controlling during creep, depending on the size of the segregants relative to the host atoms. | J.N.Wang, B.Y.Huang and T.G.Nieh National Key Laboratory for Powder Metallurgy, Central South University of Technology, Changsha 410083, China Lawrence Livermore National Laboratory, P.O.Box 808, Livermore, CA 94550, U.S.A. | 1999 | 中国有色金属学会会刊:英文版1999，9，S1： | 2 |
| 5 | Recent Advances in Superplastic Intermetallics显示文摘RecentAdvancesinSuperplasticIntermetallicsNIEHTai-Gang;WADSWORTHJeffrey(LawrenceLivermoreNationalLaboratory,Livermore,CA94550... | NIEH Tai-Gang WADSWORTH Jeffrey (Lawrence Livermore National Laboratory, Livermore, CA 94550, USA) | 1995 | Acta Metallurgica Sinica(English Letters)1995，8，Z1： | 2 |
| 6 | Diversity of carbapencm resistance mechanisms in Acinetobacter baumannii from a Taiwan hospital:spread of plasmid-borne OXA-72 carbapenemase显示文摘 | Lu PL Doumith M Livermore DM | 2009 | J Antimicrob Chemother2009，20，6： | 1 |
| 7 | Antibiotic resistance in Staphylococci 显示文摘 | Livermore D M | 2000 | Int J Antimicrob Agents2000，16，1： | 1 |
| 8 | Laboranory mutants of OXA-10 beta- lactamase giving ceftazidime resistance in Pseudomonas aeruginosa 显示文摘 | Danel F Hall L M Livermore D M | 1999 | J Antimicrob Chemother1999，43，3： | 1 |
| 9 | Sulfonamide resistance in Haemophilus influenzae mediated by acquisition of sul2 or a short insertion in chromosomal folP显示文摘 | Enne VI King A Livermore DM | 2002 | Antimicrob Agents Chemother2002，46，6： | 1 |
| 10 | A high-power MEMS electric induction motor 显示文摘 | Livermore C Forte A R Lyszczarz T | 2004 | Journal of Microelectromechanical Systems2004，13，3： | 1 |
| 11 | Activity of the siderophore monobactam BAL30072 against multiresistant non-fermenters 显示文摘 | Mushtaq S Warner M Livermore D | 2010 | J Antimicrob Chemother2010，65，： | 1 |
| 12 | Activity of cephalosporin CXA - 101 ( FR264205 ) against Pseudomonas aeruginosa and Burkholderia cepacia group strains and isolates显示文摘 | Livermore DM Mushtaq S Ge Y | 2009 | International Journal of Antimicrobial Agents2009，34，5： | 1 |
| 13 | beta-Lactamases in laboratory and clinical resistance显示文摘 | Livermore DM | 1995 | Clin Microbiol Rev1995，8，4： | 1 |
| 14 | CTX-M Extended-spectrum beta-lactamase arrives in the UK显示文摘 | Alobwede I M'Zali FH Livermore DM | 2003 | J Antimicrob Chemother2003，51，2： | 1 |
| 15 | In vitro activity of ceftazi- dimelNXL104 against Psendomonas aeruginosa and other non - fermenters显示文摘 | Mushtaq S Warner M Livermore DM | 2010 | J Antimicrob Chemother2010，65，11： | 1 |
| 16 | Emergence of a new antibiotic resistance mechanism in India, Pakistan, and the UK: a molecular, biological, and epidemiological study 显示文摘 | Kumarasamy KK Toleman MA Walsh TR Bagaria J Butt F Balakrishnan R Chaudhary U Doumith M Giske CG Irfan S Krishnan P Kumar AV Maharjan S Mushtaq S Noorie T Paterson DL Pearson A Perry C Pike R Rao B Ray U Sarma JB Sharma M Sheridan E Thirunarayan MA Turton J Upadhyay S Warner M Welfare W Livermore DM Woodford N | 2010 | Lancet Infect Dis2010，10，9： | 1 |
| 17 | Activity of cephalosporin CXA-101 (FR264205)against Pseudomohas aeruginosa and Burkholderia cepacia group strains and isolates 显示文摘 | Livermore DM Mushtaq S Ge Y | 2009 | Int J Anlimicrob Agents2009，34，5： | 1 |
| 18 | Bacteremia and antibiotic resistence of its pathogens reported in England and Wales between 1990 and 1998 : trend analysis 显示文摘 | Reacher MH Shah A Livermore DM | 2000 | BMJ2000，320，7229： | 1 |
| 19 | Persistence of sulphona- mide resistance in Escherichia coli in the UK despite national prescri- bing restriction 显示文摘 | Enne VI Livermore DM Stephens P | 2001 | Lancet2001，357，9265： | 1 |
| 20 | Bacterial resistance to carbapenems显示文摘 | Livermore DM | 1996 | Adv Exper Med Biol1996，390，： | 1 |
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