51,339 research outputs found
On the Estimation of the Distribution of Power Generated at a Wind Farm using Forecast Data
New regulations on the supply of electrical energy in Ireland have introduced a system of suppliers bidding proposals for the cost of supply for each 30 minute period of the following day. In order to effectively bid and hedge against adverse events, it is necessary to assess the uncertainty of supply from wind energy farms. Hence, the aim of this study group was to estimate the distribution of power supply from a given set of wind farms a day in advance given forecast data
Testimony Before the Subcommittee of the Senate Judiciary Committee
This testimony was originally published in the May 81, 1974 issue of Commonweal under the title Protecting the Unborn. Reprinted with permission from Commonweal, 232 Madison Avenue, New York , N. Y. 10016.
Dr. Ramsey is Harrington Spear Paine Professor of Religion at Princeton University. A scholar and teacher in the fields of religious ethics and social philosophy, he is also concerned with the serious moral issues emerging in the area of medical ethics
Faithfulness of bi-free product states
Given a non-trivial family of pairs of faces of unital C*-algebras where each
pair has a faithful state, it is proved that if the bi-free product state is
faithful on the reduced bi-free product of this family of pairs of faces then
each pair of faces arises as a minimal tensor product. A partial converse is
also obtained.Comment: 11 pages, accepted to Proceedings of the American Mathematical
Societ
Automorphisms of free products and their application to multivariable dynamics
We examine the completely isometric automorphisms of a free product of
noncommutative disc algebras. It will be established that such an automorphism
is given simply by a completely isometric automorphism of each component of the
free product and a permutation of the components. This mirrors a similar fact
in topology concerning biholomorphic automorphisms of product spaces with nice
boundaries due to Rudin, Ligocka and Tsyganov.
This paper is also a study of multivariable dynamical systems by their
semicrossed product algebras. A new form of dynamical system conjugacy is
introduced and is shown to completely characterize the semicrossed product
algebra. This is proven by using the rigidity of free product automorphisms
established in the first part of the paper.
Lastly, a representation theory is developed to determine when the
semicrossed product algebra and the tensor algebra of a dynamical system are
completely isometrically isomorphic.Comment: 21 pages, final version, accepted to Indiana U. J. of Mat
The Gluon Spin Asymmetry as a Link to Delta G and Orbital Angular Momentum
The fundamental program in high energy spin physics focuses on the spin
structure of the nucleon. The gluon and orbital angular momentum components of
the nucleon spin are virtually unknown. The J_z=1/2 sum rule involves the
integrated parton densities and can be used to extract information on the
orbital angular momentum and its evolution. To avoid any bias on a model of
Delta G, we assume that the gluon asymmetry, A=Delta G/G can be used to extract
Delta G over a reasonable kinematic region. Combining the results for Delta G
with the evolution equations, we can determine a theoretical expression for the
orbital angular momentum and its evolution.Comment: 4 pages, LaTeX2e, 1 figure. Talk given at SPIN2004, Trieste, Ital
Determining Spin-Flavor Dependent Distributions
Many of the present and planned polarization experiments are focusing on
determination of the polarized glue. There is a comparable set of spin
experiments which can help to extract information on the separate
flavor-dependent polarized distributions. This talk will discuss possible sets
of experiments, some of which are planned at BNL, CERN, DESY and JHF, which can
be used to determine these distributions. Comments will include the estimated
degree to which these distributions can be accurately found.Comment: 6 pages, LaTeX, uses aipproc.sty. Talk given at SPIN 2002, Brookhaven
National Laboratory, September 9-13, 200
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