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    题名 作者 年代 出处 被引量
1Algorithms for k-fault tolerant power assignments in wireless sensor networks显示文摘This paper addresses fault-tolerant many-to-many routing power assignments in heterogeneous wire-less sensor networks.We introduce the k-fault tolerant power assignments problem with the objective of assigning each sensor node transmission power such that(1) any pairwise sensor node is k-vertex connected and(2) the to-tal power consumption is minimized.We propose three solutions for this problem:two centralized algorithms,a greedy algorithm and an O(√n/ε)-approximation algorithm,and an h-hop distributed and localized algorithm.Related theorems and proofs are presented to prove the correctness of our approaches.Furthermore,simulation and experiment results are presented to verify the efficiency of our approaches.LIU Li 1,2,LI Lian 1,3 & HU Bin 1,4 1 School of Information Science and Engineering,Lanzhou University,Lanzhou 730000,China 2 LRI,Univ Paris-sud and CNRS,Orsay F-91405,France 3 School of Computer and Information,Hefei University of Technology,Hefei 230009,China 4 Department of Computing,Birmingham City University,Galton Building,Perry Barr,Birmingham B42 2SU,UK 2010Science China(Information Sciences)2010,53,12:5
2FLOW MECHANISMS ANDSEDIMENT TRANSPORT IN COMPOUND CHANNELS显示文摘Recent work on the UK Flood Channel Facility (FCF) is described. An overview of tile various experimental programmes. involving overbank flow studies in straight. skewed and meandering channels. is given. Some key results concerning flow mechanisms. resistance. dispcrsion and sediment transport are reviewed. A summary of different methods for estimating the stage-discharge relationship for overbank flows is included. An extensive bibliography is given for those seeking more detailed information.Donald W. KNIGHT (1 School of Civil Engineering. The University of Birmingham, Edgbaston, Birmingham, B 15 2TT. UK) 1999International Journal of Sediment Research1999,14,2:4
3External synchronization of two dynamical systems with uncertain parameters显示文摘External synchronization is addressed as two or more dynamical systems with synchronous motions,which is also regarded as master-slave system.In this paper,two dynamical systems,one employs a hysteretic term to model the friction phenomenon,the other involves a hardening stiffness component with the third order of displacement due to flexible deformation,are controlled to converge to the same trajectory.The control strategy is extended from feedback control for all parameters known to adaptive control for linear parameters unknown and all parameters unknown.The slave system can keep synchronous motions with the movements of master via the designed control strategy even all the parameters are not known.The stability of synchronization error,the transient process into synchronization and the effects of parameters on the designed controller using different control strategies are investigated.The simulation results unfold the feasibility and effectiveness of this synchronization method.HAN QingKai 1,SUN XiaoYu 2,YANG XiaoGuang 3 &WEN BangChun 1 1 School of Mechanical Engineering&Automation,Northeastern University,Shenyang 110004,China 2 School of Electrical Engineering,Shenyang University of Technology,Shenyang 110023,China 3School of Mechanical Engineering,The University of Birmingham,Birmingham,B15 2TT,UK 2010Science China(Technological Sciences)2010,53,3:3
4STRENGTHENING MECHANISMSIN TiAl BASED ALLOYS显示文摘The influence of heat treatment and of thermomechanical processing on the structure and properties of a range of TiAl based alloys has been assessed and in agreement with other reports it has been found that increased refinement of the microstructure leads to improved mechanical strength at room temperature, both for the lamellar and the duplex structures. In the case of alloys cooled rapidly from the alpha phase field the increased refinement in lamellar spacing leads to significant increases in room temperature strength but thermomechanical processing can lead to far greater increases. The origin of this increase in strength in samples with a lamellar structure has been assessed in terms of the ability of dislocations to cross gamma/gamma and gamma/alpha 2 lamellar interfaces. It was concluded that the alpha 2 gamma interfaces and the alpha itself are important factors in strengthening the lamellar alloys. The stability of the various structures developed either by appropriate heat treatments or by thermomechanical processing has been investigated by exposing samples for a range of times at temperatures between 700 and 1 000 ℃. It has been found that the yield strength and the ultimate tensile strength generally decreased by about 20% during high temperature exposure at 700 ℃ for 3 000 h. The detailed behaviour on exposure at 700 ℃ has been found to be a function of alloy composition, with complex precipitates being formed in some alloys, but in all cases the amount of alpha 2 decreased with increased heat treatment time. It has been found that during exposure the alpha 2 lamellae decomposed to gamma phase by a mechanism that can involve the formation of thin gamma lamellae within the original alpha 2 lamellae.M. H. Loretto, A.B.Godfrey and D.Hu Interdisciplinary Research Centre (IRC) in Materials for High Performance Applications, The University of Birmingham, Edgbaston B15 2TT, UK 1999中国有色金属学会会刊:英文版1999,9,S1:2
53' UTR seed matches, but not overall identity, are associated with RNAi off- targets显示文摘Birmingham A Anderson E M Reynolds A 2006Nat Methods2006,3,3:1
6Resistance training for medial compartment knee osteoarthritis and malalignment显示文摘King LK Birmingham TB Kean CO Jones IC Bryant DM Giffin JR 0,,:1
7The thioredoxin redox inhibitors 1-methylpropyl 2-imidazolyl disulfide and pleurotin inhibit hypoxia-induced factor 1α and vascular endothelial growth factor formation显示文摘Welsh SJ Williams RR Birmingham A 2003Molecular Cancer Therapeutics2003,2,3:1
8An updated assessment of the exposure of Canadians to dioxins and furans显示文摘Gilman A Newhood R Birmingham B 1991Chemosphere1991,23,:1
9Linezolid for the treatment of multidrug-resistant, grampositive infections: experience from a compassionate-use program 显示文摘Birmingham M C Rayner C R Meagher A K 2003Clin Infect Dis2003,36,:1
10A review of needle-protective devices to prevent sharps injuries显示文摘Birmingham SO 2004Br J Nurs2004,13,3:1
11The traditional Chinese herbal formula ASHMI inhibits allergic lung inflammationin antigen-sensitized and antigen-challenged aged mice显示文摘Busse P J Schofield B Birmingham N Yang N Wen MC Zhang T Srivastava K Li XM 0,,03:1
12Future of neuroprotective drugs in doubt显示文摘Birmingham K 2002Nat Med2002,8,1:1
13Twenty - four -hour pharmacokinetics of rectal acetaminophen in children: an old drug with new recommendations显示文摘Birmingham PK Tobin MJ Henthom TK 1997Anesthesiology1997,87,:1
14Toe-out, lateral trunk lean, and pelvic obliquity during prolonged walking in patients with medial compartment knee osteoar- thritis and healthy controls显示文摘Bechard DJ Birmingham TB Zecevic AA 2012Arthritis Care Res (Hobo- ken)2012,64,4:1
15Phronesis:A Model for Pedagogical Reflection显示文摘Birmingham C 2004Teacher Education2004,55,4:1
16Conformal field theory interpretation of black holequasinormal modes显示文摘BIRMINGHAM D SACHS I SOLODUKHIN S N 2002Phys Rev Lett2002,88,15:1
17Safety, efficacy and pharmacokinetics of linezolid for treatment of resistant Gram- positive infections in cancer patients with neutropenia 显示文摘Smith PF Birmingham MC Noskin GA 2003Ann Oncol2003,14,5:1
18Evidence that abnormally large seasonal declines in vitamin D sta- tus may trigger SLE flare in non-African Americans 显示文摘Birmingham D J Hebert LA Song H 2012Lupus2012,21,8:1
19Treatment of pelvic pain associated with en-dometriosis显示文摘Birmingham Alabama 2008Fertility and Sterility2008,90,:1
20Lateral trunk lean explains variation in dynamic knee joint load in pa- tients with medial compartment knee osteoarthritis显示文摘Hunt MA Birmingham TB Bryant D 2008Osteo- arthritis Cartilage2008,16,5:1
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