نتایج جستجو برای: cohen
تعداد نتایج: 10795 فیلتر نتایج به سال:
Natalia Calanzani ([email protected]) Katrien Moens ([email protected]) Joachim Cohen ([email protected]) Irene J Higginson ([email protected]) Richard Harding ([email protected]) Luc Deliens ([email protected]) Franco Toscani ([email protected]) Pedro L Ferreira ([email protected]) Claudia Bausewein ([email protected]) Barbara A Daveson (...
During the last decade, ecologists and particularly mathematical ecologists have focused on different approaches to the problem of spatial distribution of species. When the spatial distribution is not considered explicitly, the mathematical models are called spatially implicit. They consider the proportion of territory occupied by given species, but there is no information on which particular s...
Rod Borup,* Jeremy Meyers,‡ Bryan Pivovar,† Yu Seung Kim,† Rangachary Mukundan,† Nancy Garland,§ Deborah Myers, Mahlon Wilson,† Fernando Garzon,† David Wood,† Piotr Zelenay,† Karren More,⊥ Ken Stroh,† Tom Zawodzinski, James Boncella,† James E. McGrath, Minoru Inaba,# Kenji Miyatake,∇ Michio Hori, Kenichiro Ota, Zempachi Ogumi,£ Seizo Miyata,+ Atsushi Nishikata,¶ Zyun Siroma,∞ Yoshiharu Uchimoto...
| Many commonly used time-frequency distributions are members of the Cohen class. This class is deened for continuous signals and since time-frequency distributions in the Cohen class are quadratic, the formulation for discrete signals is not straightforward. The Cohen class can be derived as the class of all quadratic time-frequency distributions that are covariant to time shifts and frequency...
Warning to the reader After this paper was written, we became aware of S.D.Cohen's 1998 result [C-Graph, Theorem 1.4], which is both sharper and more general than the result, Theorem 1.1, of this paper. We leave this manuscript up only because its techniques, quite different from those of Cohen, may conceivably be of some independent interest.
A fast, accurate method for solving the Euler equations will be described. A new mesh generation scheme, capable of creating a mesh around winglbodyltail-plane/fin combinations will also be presented. The paper concludes with a proliminary result demonstrating how the Euler method performs for a typical aircraft configuration.
so-called Clinger-Cohen Act, which compels government decisionmakers to adopt a portfolio approach to IT investments. The great advantage of this is that it forces these decisionmakers to take not only a short-term perspective, however tempting and understandable this may be, but also to develop an overall vision. Decisionmakers must look at whether the IT portfolio is balanced in terms of risk...
Citizen engagement is thought to be the key to the success of e-government and its development. Egovernment can only achieve true transformation through citizen engagement (Jones, Hackney, and Irani, 2007). Research indicates that citizens who use the Internet to contact government express higher levels of satisfaction with their contact experience (Cohen, 2006). A satisfactory contact experien...
The following results are proved: (a) In a model obtained by adding א2 Cohen reals, there is always a c.c.c. complete Boolean algebra without the weak Freese-Nation property. (b) Modulo the consistency strength of a supercompact cardinal, the existence of a c.c.c. complete Boolean algebra without the weak Freese-Nation property is consistent with GCH. (c) If a weak form of 2μ and cof([μ] א0 ,⊆)...
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