Results 31 to 40 of about 69,384 (161)
On the Geometric Ramsey Number of Outerplanar Graphs
, 2013 We prove polynomial upper bounds of geometric Ramsey numbers of pathwidth-2 outerplanar triangulations in both convex and general cases. We also prove that the geometric Ramsey numbers of the ladder graph on $2n$ vertices are bounded by $O(n^{3})$ and $O(
Cibulka, Josef +4 more
core +1 more source
A Low-Dropout Voltage Regulator with a Fractional-Order Control [PDF]
Radioengineering, 2016 This paper presents a 5 V / 50 mA low-dropout voltage regulator (LDO). The LDO uses a fractional-order control for its regulation loop to achieve a high DC gain (for a tight DC regulation) while avoiding (for a good stability) a high gain at high ...
L. Kadlcik, P. Horsky
doaj
Low-Temperature Properties of Quasi-One-Dimensional Molecule-Based Ferromagnets
, 2001 Quantum and thermal behaviors of low-dimensional mixed-spin systems are investigated with particular emphasis on the design of molecule-based ferromagnets.
Anderson P. W. +47 more
core +1 more source
Chaotic transients in the switching of roto-breathers [PDF]
, 2001 By integrating a set of model equations for Josephson ladder subjected to a uniform transverse bias current we have found almost all of the kinds of breathers described in recent experiments, and closely reproduced their voltage-current characteristics ...
Aubry +18 more
core +2 more sources
Chemically Doped Conductive Polymers for Wearable Health Monitoring
Advanced Materials Technologies, EarlyView.Among conductive polymers, poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), polyaniline (PANI), and polypyrrole (PPy) are the most studied and applied. Chemical doping significantly boosts intrinsic conductivity and mechanical robustness.
Mengdi Zuo +5 more
wiley +1 more source
, 1981 A dc-to-dc converter employs four transistor switches in a bridge to chop dc power from a source, and a voltage multiplying diode rectifying ladder network to rectify and filter the chopped dc power for delivery to a load.
Black, J. M.
core +1 more source
Local density of states in two-dimensional topological superconductors under a magnetic field: signature of an exterior Majorana bound state [PDF]
, 2018 We study quasiparticle states on a surface of a topological insulator (TI) with proximity-induced superconductivity under an external magnetic field. An applied magnetic field creates two Majorana bound states: a vortex Majorana state localized inside a ...
78807 +5 more
core +2 more sources
Advanced Materials Technologies, EarlyView.Printed organic thermoelectric generators (OTEGs) enable flexible and sustainable energy harvesting from low‐grade heat. This Perspective critically assesses recent advances in printable thermoelectric materials, 2D and 3D device architectures, and current performance limits of printed OTEGs.
Vijitha Ignatious +5 more
wiley +1 more source
Rotation of a single acetylene molecule on Cu(001) by tunneling electrons in STM
, 2013 We study the elementary processes behind one of the pioneering works on STM controlled reactions of single molecules [Stipe et al., Phys. Rev. Lett. 81, 1263 (1998)].
Paulsson, Magnus +3 more
core +1 more source
Chiral symmetry breaking in gauged ${\bf NJL}$ model in curved spacetime [PDF]
, 1996 Using the renormalization group (RG) approach and the equivalency between the class of gauge-Higgs-Yukawa models and the gauged Nambu-Jona-Lasinio (NJL) model, we study the gauged NJL model in curved space-time.
A. A. Bytsenko +50 more
core +2 more sources