نتایج جستجو برای: gravity separators

تعداد نتایج: 65730  

Journal: :Discrete Applied Mathematics 2014
Anne Berry Romain Pogorelcnik Geneviève Simonet

We define an atom tree of a graph as a generalization of a clique tree: its nodes are the atoms obtained by clique minimal separator decomposition, and its edges correspond to the clique minimal separators of the

Journal: :Inf. Process. Lett. 1996
Ton Kloks Haiko Müller Chak-Kuen Wong

We present an efficient algorithm for computing the vertex ranking number of an asteroidal triple-free graph. lts running time is bounded by a polynomial in the number of vertices and the number of minimal separators of the input graph.

2011
Kristen Severson Mariano Martín Ignacio E. Grossmann

In this paper we optimize the production of biodiesel using bioethanol from algae following four different transesterification paths: alkali, enzymatic and heterogeneous catalysts and supercritical conditions. The reactors are modelled using response surface methodology based on experimental results from the literature. These reactor models are implemented together with short-cut methods for th...

2007
Hai Nguyen

The notion of staircase separator, introduced in 2], greatly facilitates the design of divide-and-conquer algorithms for problems on rectangles. We generalize the concept of staircase separator to k-perfect staircase separator, namely a set of staircase separators which partitions a set S of n axis-parallel, disjoint rectangles into k subsets of (almost) equal size. We derive an optimal O(log n...

1992
Sairam Sairam Roberto Tamassia Jeffrey Scott Vitter

Computing shortest paths in a directed graph has received considerable attention in the sequential RAM model of computation. However, developing a polylog-time parallel algorithm that is close to the sequential optimal in terms of the total work done remains an elusive goal. We present a rst step in this direction by showing that for an n-node planar layered digraph with nonnegative edge-weight...

2004
T. SATA

Recent research trends in the development of ion exchange membranes and their use in separation processes with chemical reactions are reviewed. Emphasis in research on the ion exchange membrane is trending toward analysis of micro-structure of the membranes and to development of new functionalized ion exchange membranes in response to industrial requirements. Separation processes with chemical ...

Journal: :Physical review letters 2010
Ch E Düllmann M Schädel A Yakushev A Türler K Eberhardt J V Kratz D Ackermann L-L Andersson M Block W Brüchle J Dvorak H G Essel P A Ellison J Even J M Gates A Gorshkov R Graeger K E Gregorich W Hartmann R-D Herzberg F P Hessberger D Hild A Hübner E Jäger J Khuyagbaatar B Kindler J Krier N Kurz S Lahiri D Liebe B Lommel M Maiti H Nitsche J P Omtvedt E Parr D Rudolph J Runke B Schausten E Schimpf A Semchenkov J Steiner P Thörle-Pospiech J Uusitalo M Wegrzecki N Wiehl

The fusion-evaporation reaction 244Pu(48Ca,3-4n){288,289}114 was studied at the new gas-filled recoil separator TASCA. Thirteen correlated decay chains were observed and assigned to the production and decay of {288,289}114. At a compound nucleus excitation energy of E{*}=39.8-43.9  MeV, the 4n evaporation channel cross section was 9.8{-3.1}{+3.9}  pb. At E^{*}=36.1-39.5  MeV, that of the 3n eva...

Journal: :SIAM J. Matrix Analysis Applications 1995
Michael T. Heath Padma Raghavan

shop on Sparse Matrix Computations: Graph Theory Issues and Algorithms, Institute for Mathematics and Its Applications, Springer-Verlag, 1992. [13] G. L. Miller, S. Teng, and S. A. Vavasis, A uni ed geometric approach to graph separators, in Proceedings of the 32nd Annual Symposiumon Foundations of Computer Science, IEEE, 1991, pp. 538{547. [14] G. L. Miller and W. Thurston, Separators in two a...

Journal: :Bioresource technology 2011
Xiaoyuan Zhang Shaoan Cheng Peng Liang Xia Huang Bruce E Logan

The combined use of brush anodes and glass fiber (GF1) separators, and plastic mesh supporters were used here for the first time to create a scalable microbial fuel cell architecture. Separators prevented short circuiting of closely-spaced electrodes, and cathode supporters were used to avoid water gaps between the separator and cathode that can reduce power production. The maximum power densit...

2005
Shuo Wang Dushan Boroyevich Douglas K. Lindner Douglas J. Nelson

Five chapters of this dissertation concentrate on the characterization and cancellation of high frequency parasitic parameters in EMI filters. One chapter addresses the interaction between the power interconnects and the parasitic parameters in EMI filters. The last chapter addresses the characterization, evaluation and design of noise separators. Both theoretical and experimental analyses are ...

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