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101.
S. Banerjee B. White L. Huang B.J. Rego S. O’Brien I.P. Herman 《Applied Physics A: Materials Science & Processing》2007,86(4):415-419
Single-walled carbon nanotubes (SWNTs) have been precisely aligned and positioned in device architectures using ac dielectrophoresis
by patterning floating metal posts or strips within the electrode gaps. These structures perturb the electric field, causing
local enhancements in the field intensity, as seen in simulation, that guide the nanotubes along a predictable path in given
directions, in zigzag patterns, or as single or a sequence of tubes along a series of posts. This method enables the assembly
of SWNTs in complex multi-electrode geometries, when specifying the electrode voltages is not sufficient to direct the desired
assembly. The device characteristics of the dielectrophoretically-aligned SWNTs are discussed.
PACS 61.46.Fg; 73.63.-b; 87.15.Tt 相似文献
102.
103.
104.
Pietro Franceschi Roland Thissen Odile Dutuit Christian Alcaraz Heloise Soldi-Lose Davide Bassi Daniela Ascenzi Paolo Tosi Jan Zabka Zdenek Herman Marcello Coreno Monica de Simone 《International journal of mass spectrometry》2009,280(1-3):119
The long-lived excited states of doubly charged rare gases can markedly affect their reactivity. In this paper we demonstrate the presence of strong state-specific effects in the charge exchange of Ar2+ (3P, 1D and 1S) with several neutral targets (He, Ne, Kr, Xe, D2, and CH4). State sensitive measurements have been performed by producing the different Ar2+ electronic states via tunable synchrotron radiation (Elettra-Trieste, Italy and SuperACO-Orsay, France). From the product ion yield data of charge transfer, state-selected total cross-sections have been deduced. Using the state-specific reactivity of Ar2+ towards different neutral targets, it has been possible to extract the photon-energy-dependent production branching of the three doubly charged states and to investigate the autoionization dynamics of neutral or singly charged Ar in the vicinity of the double ionization threshold. 相似文献
105.
The goal of Intensity-Modulated Radiation Therapy (IMRT) is to deliver sufficient doses to tumors to kill them, but without causing irreparable damage to critical organs. This requirement can be formulated as a linear feasibility problem. The sequential (i.e., iteratively treating the constraints one after another in a cyclic fashion) algorithm ART3 is known to find a solution to such problems in a finite number of steps, provided that the feasible region is full dimensional. We present a faster algorithm called ART3+. The idea of ART3+ is to avoid unnecessary checks on constraints that are likely to be satisfied. The superior performance of the new algorithm is demonstrated by mathematical experiments inspired by the IMRT application. 相似文献
106.
Maxwell D. Cummings Jimmy Lindberg Tse‐I Lin Herman de Kock Oliver Lenz Elisabet Lilja Sara Felländer Vera Baraznenok Susanne Nyström Magnus Nilsson Lotta Vrang Michael Edlund Åsa Rosenquist Bertil Samuelsson Pierre Raboisson Kenneth Simmen 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2010,122(19):3320-3320
107.
Martijn D.P. Risseeuw Gijs A. van der Marel Herman S. Overkleeft Mark Overhand 《Tetrahedron: Asymmetry》2009,20(6-8):945-951
The design, synthesis and application of oxabicyclo[4.1.0]heptane amino acids as conformationally restricted sugar amino acid dipeptide isosteres are reported. 相似文献
108.
Allen Herman 《Acta Appl Math》2009,108(1):57-71
This paper surveys recent results on the problem of describing the equivalence classes of finite-dimensional central simple
G-algebras over a field. Improvements to these results are provided in some situations. 相似文献
109.
110.
Trent D Lund Timothy W West Lilyan Y Tian Lihong H Bu Daniel L Simmons Kenneth DR Setchell Herman Adlercreutz Edwin D Lephart 《BMC neuroscience》2001,2(1):20-13