|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | DEVELOPMENT OF A VERSATILE SENSING MEMBRANE FOR IMMUBILIZATION OF PROTEIN AND A NEW IMMOBILIZATION METHOD显示文摘DEVELOPMENTOFAVERSATILESENSINGMEMBRANEFORIMMUBILIZATIONOFPROTEINANDANEWIMMOBILIZATIONMETHODY.K.Zhou,J.W.Yuan,S.Q.Xu,B.H.Shu(D... | Y.K. Zhou, J. W. Yuan,S. Q. Xu, B. H. Shu(Department of Environmental Medicine,Tongji Medical University,Wuhan 430030, China)P. R. H. Kooyman(Department of Applied Physics,MESA Institute, University of Twente, P. O. Box 217,7500 AE Enschede, The Netherlan | 1996 | Chinese Journal of Biomedical Engineering(English Edition)1996，5，4： | 2 |
| 2 | Phase Evolution and Magnetic Studies of La and Refractory Metals Co-substituted α-Fe/R_2Fe_(14)B-type Nanocomposites显示文摘Phase evolution and magnetic properties of (Ndo.95La0.05)9.5-11Febal.M2B10.5. where M=Cr, Ti, Nb, V, Mo, Zr, Hf, Ta, Mn or W, melt spun ribbons have been investigated. Almost all the alloy ribbons. except for(Nd0.95La0.05)9.5Fe78M2B10.5(M=Mo and Mn),consist merely two magnetic phases, namely α-Fe and R2Fe14B, which display a better combination of iHc and magnetic energy product. Remanence (Br) and coercivity (iHc) values in the range of 8.0 to 9.1 kG and 9.5 to 18.9 kOe. respectively, can be achieved. Among compositions studied, the Ti and W-substitutions were found to be most effective in increasing the Br and iHc, respectively. For a fixed refractory metal substitution, namely, M=Cr, Ti or Nb, an increase in the total rare earth concentration resulted in nanocomposites of small grain sizes and a high volume fraction of the R2Fe14B phase, leading to an increase in the magnetic properties. | W. C. Changt, S.H. Wang, S.J. Chang and M. Y. Tsai (Department of Physics, Chung Cheng University, Ming-Hsiung, Chia-Yi, 621, Taiwan-China Q.Chen) (Rhodia Inc., Rare Earths and Gallium, CN 7500, Cranbury, New Jersey 08512, U.S.A.) | 2000 | Journal of Materials Science & Technology2000，16，2： | 1 |
| 3 | John Radcliffe Hospital Cryptorchidism Study Group显示文摘 | Cryptorchidism a prospective study of 7500 consecutive male births 1984-8 | | 0，，7： | 1 |
| 4 | QUEUEING NETWORKS WITH STRING TRANSITIONS OF MIXED VECTOR ADDITIONS AND VECTOR REMOVALS显示文摘Product form queueing networks with string transitions have been studied in the literature as a model incorporating several features of the existing networks. That model includes state-dependent transition rates at the cost of a restrictive form of the string transitions: First a sequence of nonnegative vectors is removed, and then a sequence of nonnegative vectors is added to the network state. Such a transition structure excludes, for example, networks with positive and negative signals recently studied in the literature. This paper extends the string transition networks to allow transitions of mixed vector additions and vector removals, and it includes assembly-transfer networks as well as networks with negative and positive signals as special cases. Assuming that the transition rates are independent of the network state except at the boundaries, we obtain general modifications for the string transition network under which it possesses a product form equilibrium distribution. The network is shown to satisfy a class of local balance as expressed by a set of traffic equations. | Richard J. Boucherie (Faculty of Mathematical Sciences, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands) Xiuli Chao (Department of Industrial Engineering, North Carolina State University, Raleigh, NC27695-7906, USA) | 2001 | Journal of Systems Science & Complexity2001，14，4： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员