• Synthesis of nano-grained MnO2 thin films by laser ablation 

  Tabbal M.; Abi-Akl M.; Isber S.; Majdalani E.; Christidis T. (BELLINGHAM1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA, 2009)

  Manganese dioxide (MnO2) is considered as one of the most attractive compound among the manganese oxide phases due to its fundamental chemical and physical properties, its use in energy-storage devices, electrochemical ...
• The uncanny precision of the spectral action 

  Chamseddine A.H.; Connes A. (NEW YORK233 SPRING ST, NEW YORK, NY 10013 USA, 2009)

  Noncommutative geometry has been slowly emerging as a new paradigm of geometry which starts from quantum mechanics. One of its key features is that the new geometry is spectral in agreement with the physical way of measuring ...
• Gauduchon-Tod structures, Sim holonomy and de Sitter supergravity 

  Grover J.; Gutowski J.B.; Herdeiro C.A.R.; Meessen P.; Palomo-Lozano A.; Sabra W.A. (NEW YORK233 SPRING ST, NEW YORK, NY 10013 USA, 2009)

  Solutions of five-dimensional De Sitter supergravity admitting Killing spinors are considered, using spinorial geometry techniques. It is shown that the null solutions are defined in terms of a one parameter family of ...
• Five dimensional non-supersymmetric black holes and strings 

  Gutowski J.B.; Sabra W.A. (NEW YORK233 SPRING ST, NEW YORK, NY 10013 USA, 2009)

  We study non-supersymmetric solutions of five dimensional N = 2 supergravity theories coupled to an arbitrary number of abelian vector multiplets. The solutions constructed can be considered as deformations of known ...
• Partition function, metastability, and kinetics of the escape transition for an ideal chain 

  Klushin L.I.; Skvortsov A.M.; Leermakers F.A.M. (COLLEGE PKONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA, 2004)

  The exact partition of the gaussian chain squeezed between two cylinders for a phase transition in a single macromolecule is analyzed. The polymer chain is squeezed between two pistons which results in abrupt transition ...
• EPR study of local symmetry sites of Ce3+ in Pb1-x Cex A (A=S, Se, and Te) 

  Gratens X.; Bindilatti V.; Chitta V.A.; Oliveira N.F.; Isber S.; Golacki Z. (COLLEGE PKONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA, 2009)

  The local site symmetry of Ce3+ ions in the diluted magnetic semiconductors Pb1-x Cex A (A=S, Se, and Te) has been investigated by electron-paramagnetic resonance (EPR). The experiments were carried out on single crystals ...
• HKT geometry and de Sitter supergravity 

  Grover J.; Gutowski J.B.; Herdeiro C.A.R.; Sabra W. (AMSTERDAMPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2009)

  Solutions of five-dimensional minimal de Sitter supergravity admitting Killing spinors are considered. It is shown that the timelike solutions are determined in terms of a four-dimensional hyper-Kähler torsion (HKT) manifold. ...
• Gauss's method for secular dynamics, softened 

  Touma J.R.; Tremaine S.; Kazandjian M.V. (MALDENCOMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA, 2009)

  We show that the algorithm proposed by Gauss to compute the secular evolution of gravitationally interacting Keplerian rings extends naturally to softened gravitational interactions. The resulting tool is ideal for the ...
• Satellite dynamics on the laplace surface 

  Tremaine S.; Touma J.; Namouni F. (BRISTOLDIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND, 2009)

  The orbital dynamics of most planetary satellites is governed by the quadrupole moment from the equatorial bulge of the host planet and the tidal field from the Sun. On the Laplace surface, the long-term orbital evolution ...
• Massive stars: Input physics and stellar models 

  El Eid M.F.; The L.-S.; Meyer B.S. (DORDRECHTVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS, 2009)

  We present a general overview of the structure and evolution of massive stars of masses ≥12 M ⊙ during their pre-supernova stages. We think it is worth reviewing this topic owing to the crucial role of massive stars in ...
• On the onset of type I edge localized modes 

  Antar G.Y.; Krasheninnikov S.I.; Snyder P.B.; Moyer R.A.; Pugno R.; Gray D.S. (VIENNAWAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA, 2009)

  The onset of type I edge localized modes (ELMs) is investigated on the DIII-D tokamak. A fast imaging camera is used with an integration time of 1 νs and a time between frames of about 15 νs continuously recording for a ...
• Stretching and compression of a macromolecule under different modes of mechanical manupulations 

  Skvortsov A.M.; Klushin L.I.; Birshtein T.M. (NEW YORK233 SPRING ST, NEW YORK, NY 10013-1578 USA, 2009)

  This review is concerned with the response of an isolated polymer chain subjected to the action of the two different modes of the mechanical impact on the chain ends. In one mode, the end-to-end distance is changed in a ...
• The escape transition of a polymer: A unique case of non-equivalence between statistical ensembles 

  Dimitrov D.I.; Klushin L.I.; Skvortsov A.; Milchev A.; Binder K. (NEW YORK233 SPRING ST, NEW YORK, NY 10013 USA, 2009)

  A flexible polymer chain under good solvent conditions, end-grafted on a flat repulsive substrate surface and compressed by a piston of circular cross-section with radius L may undergo the so-called escape transition when ...
• Temperature effects in the mechanical desorption of an infinitely long lattice chain: Re-entrant phase diagrams 

  Skvortsov A.M.; Klushin L.I.; Fleer G.J.; Leermakers F.A.M. (MELVILLECIRCULATION and FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA, 2009)

  We consider the mechanical desorption of an infinitely long lattice polymer chain tethered at one end to an adsorbing surface. The external force is applied to the free end of the chain and is normal to the surface. There ...
• Escape transition of a polymer chain from a nanotube: How to avoid spurious results by use of the force-biased pruned-enriched Rosenbluth algorithm 

  Hsu H.-P.; Binder K.; Klushin L.I.; Skvortsov A.M. (COLLEGE PKONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA, 2008)

  A polymer chain containing N monomers confined in a finite cylindrical tube of diameter D grafted at a distance L from the open end of the tube may undergo a rather abrupt transition, where part of the chain escapes from ...
• Point defect engineered Si sub-bandgap light-emitting diodes 

  Bao J.; Charnvanichborikarn S.; Yang Y.; Tabbal M.; Shin B.; Wong-Leung J.; Williams J.S.; Aziz M.J.; Capasso F. (, 2008)

  We present a novel approach to enhance light emission in Si and demonstrate sub-bandgap light-emitting diodes (LED) based on the introduction of point defects. Ion implantation, pulsed laser melting and rapid thermal ...
• Null half-supersymmetric solutions in five-dimensional supergravity 

  Grover J.; Gutowski J.B.; Sabra W. (NEW YORK233 SPRING ST, NEW YORK, NY 10013 USA, 2008)

  We classify half-supersymmetric solutions of gauged N = 2, D = 5 supergravity coupled to an arbitrary number of abelian vector multiplets for which all of the Killing spinors generate null Killing vectors. We show that ...
• Superconducting properties of zinc substitution in Tl-2223 phase 

  Awad R.; Abou-Aly A.I.; Ibrahim I.H.; El-Korek M.; Isber S.; Faraj A. (LAUSANNEPO BOX 564, 1001 LAUSANNE, SWITZERLAND, 2008)

  The effect of partial replacement of copper by zinc in Tl2Ba2Ca2Cu3O10-δ superconductor phase is studied. Superconducting samples of the nominal composition Tl2Ba2Ca2Cu3-xZnx O10-δ with x ranging from 0 to 0.6 are prepared ...
• Superconducting properties of chromium Cr-YBCO grown by pulsed laser deposition 

  Isber S.; Madi C. (BRISTOLDIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND, 2008)

  Thin superconducting films of type Chromium incorporated YBa 2Cu3CrxO6+δ have been grown by Pulsed Laser Deposition (PLD). The prepared films have been characterized using X-ray powder diffraction (XRD) and Energy Dispersive ...
• Universal properties of a single polymer chain in slit: Scaling versus molecular dynamics simulations 

  Dimitrov D.I.; Milchev A.; Binder K.; Klushin L.I.; Skvortsov A.M. (MELVILLECIRCULATION and FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA, 2008)

  We revisit the classical problem of a polymer confined in a slit in both of its static and dynamic aspects. We confirm a number of well known scaling predictions and analyze their range of validity by means of comprehensive ...

View more