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Power sector reform and renewable energy in the MENA region : a study of interaction between these two initiatives in the UAE, Egypt and Morocco
textIn light of the Arab Spring, media professionals and academics have expanded the scope of their focus on the Middle East and North Africa (MENA) region. Yet, relatively little attention has been paid to two powerful forces that could significantly affect its economic and political landscape: power sector reform and renewable energy development initiatives. This paper attempts to outline the history and future of these initiatives in the region by focusing on three MENA region countries, the United Arab Emirates (UAE), with a focus on Abu Dhabi, along with Egypt, and Morocco. Furthermore, this paper analyzes how these two initiatives are affecting one another in the context of the domestic political landscape and economy. The results of this analysis point to three key aspects of power sector reform initiatives affecting domestic renewable energy development: the level of governmental financial supervision, electricity subsidies, and the terms of engagement between the state-run single buyer utility and independent power producers (IPPs).Middle Eastern StudiesPublic Affair
Then You\u27ll Come Back To Me
https://digitalcommons.library.umaine.edu/mmb-vp/6253/thumbnail.jp
Biot-Savart-like law in electrostatics
The Biot-Savart law is a well-known and powerful theoretical tool used to
calculate magnetic fields due to currents in magnetostatics. We extend the
range of applicability and the formal structure of the Biot-Savart law to
electrostatics by deriving a Biot-Savart-like law suitable for calculating
electric fields. We show that, under certain circumstances, the traditional
Dirichlet problem can be mapped onto a much simpler Biot-Savart-like problem.
We find an integral expression for the electric field due to an arbitrarily
shaped, planar region kept at a fixed electric potential, in an otherwise
grounded plane. As a by-product we present a very simple formula to compute the
field produced in the plane defined by such a region. We illustrate the
usefulness of our approach by calculating the electric field produced by planar
regions of a few nontrivial shapes.Comment: 14 pages, 6 figures, RevTex, accepted for publication in the European
Journal of Physic
Modeling electromechanical properties of layered electrets: Application of the finite-element method
We present calculations on the deformation of two- and three-layer electret
systems. The electrical field is coupled with the stress-strain equations by
means of the Maxwell stress tensor. In the simulations, two-phase systems are
considered, and intrinsic relative dielectric permittivity and Young's modulus
of the phases are altered. The numerically calculated electro-mechanical
activity is compared to an analytical expression. Simulations are performed on
two- and three-layer systems. Various parameters in the model are
systematically varied and their influence on the resulting piezoelectricity is
estimated. In three-layer systems with bipolar charge, the piezoelectric
coefficients exhibit a strong dependence on the elastic moduli of the phases.
However, with mono-polar charge, there is no significant piezoelectric effect.
A two-dimensional simulation illustrated that higher piezoelectricity
coefficients can be obtained for non-uniform surface charges and low Poisson's
ratio of phases. Irregular structures considered exhibit low piezoelectric
activity compared to two-layer structures.Comment: To be appaer in J Electrostatic
Alternative scattering power for Gaussian beam model of heavy charged particles
This study provides an accurate, efficient, and simple multiple scattering
formulation for heavy charged particles such as protons and heavier ions with a
new form of scattering power that is a key quantity for beam transport in
matter. The Highland formula for multiple scattering angle was modified to a
scattering-power formula to be used within the Fermi-Eyges theory in the
presence of heterogeneity. An analytical formula for RMS end-point displacement
in homogeneous matter was also derived for arbitrary ions. The formulation was
examined in terms of RMS angles and displacements in comparison with other
formulations and measurements. The results for protons, helium ions, and carbon
ions in water agreed with them at a level of 2% or the differences were
discussed.Comment: To be published in Nuclear Instruments and Methods in Physics
Research Section
Linear Momentum Density in Quasistatic Electromagnetic Systems
We discuss a couple of simple quasistatic electromagnetic systems in which
the density of electromagnetic linear momentum can be easily computed. The
examples are also used to illustrate how the total electromagnetic linear
momentum, which may also be calculated by using the vector potential, can be
understood as a consequence of the violation of the action-reaction principle,
because a non-null external force is required to maintain constant the
mechanical linear momentum. We show how one can avoid the divergence in the
interaction linear electromagnetic momentum of a system composed by an
idealization often used in textbooks (an infinite straight current) and a point
charge.Comment: 22 pages, 5 figures, to appear in Eur. J. Phy
Electron dose calculations using the Method of Moments
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/134898/1/mp7920.pd
Measurement of the quasi-elastic axial vector mass in neutrino-oxygen interactions
The weak nucleon axial-vector form factor for quasi-elastic interactions is
determined using neutrino interaction data from the K2K Scintillating Fiber
detector in the neutrino beam at KEK. More than 12,000 events are analyzed, of
which half are charged-current quasi-elastic interactions nu-mu n to mu- p
occurring primarily in oxygen nuclei. We use a relativistic Fermi gas model for
oxygen and assume the form factor is approximately a dipole with one parameter,
the axial vector mass M_A, and fit to the shape of the distribution of the
square of the momentum transfer from the nucleon to the nucleus. Our best fit
result for M_A = 1.20 \pm 0.12 GeV. Furthermore, this analysis includes updated
vector form factors from recent electron scattering experiments and a
discussion of the effects of the nucleon momentum on the shape of the fitted
distributions.Comment: 14 pages, 10 figures, 6 table
Measurement of the B+ --> p pbar K+ Branching Fraction and Study of the Decay Dynamics
With a sample of 232x10^6 Upsilon(4S) --> BBbar events collected with the
BaBar detector, we study the decay B+ --> p pbar K+ excluding charmonium decays
to ppbar. We measure a branching fraction Br(B+ --> p pbar
K+)=(6.7+/-0.5+/-0.4)x10^{-6}. An enhancement at low ppbar mass is observed and
the Dalitz plot asymmetry suggests dominance of the penguin amplitude in this B
decay. We search for a pentaquark candidate Theta*++ decaying into pK+ in the
mass range 1.43 to 2.00 GeV/c2 and set limits on Br(B+ -->
Theta*++pbar)xBr(Theta*++ --> pK+) at the 10^{-7} level.Comment: 8 pages, 7 postscript figures, submitted to Phys. Rev. D (Rapid
Communications
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