Results 11 to 20 of about 1,438,237 (256)

Conjugate Image Theory Applied on Capacitive Wireless Power Transfer

open access: yesEnergies, 2017
Wireless power transfer using a magnetic field through inductive coupling is steadily entering the market in a broad range of applications. However, for certain applications, capacitive wireless power transfer using electric coupling might be preferable.
Ben Minnaert, Nobby Stevens
doaj   +1 more source

Chaotic inflation limits for non-minimal models with a Starobinsky attractor [PDF]

open access: yes, 2014
We investigate inflationary attractor points by analyzing non-minimally coupled single field inflation models in two opposite limits; the `flat' limit in which the first derivative of the conformal factor is small and the `steep' limit, in which the ...
Mosk, Benjamin   +1 more
core   +3 more sources

Towards a lattice determination of the $B^\ast B \pi$ coupling [PDF]

open access: yes, 1998
The coupling $g_{B^\ast B \pi}$ is related to the form factor at zero momentum of the axial current between $B^\ast$- and $B$-states. This form factor is evaluated on the lattice using static heavy quarks and light quark propagators determined by a ...
Collaboration, UKQCD   +6 more
core   +3 more sources

Relativistic Modification of the Gamow Factor [PDF]

open access: yes, 1999
In processes involving Coulomb-type initial- and final-state interactions, the Gamow factor has been traditionally used to take into account these additional interactions. The Gamow factor needs to be modified when the magnitude of the effective coupling
A. Sommerfeld   +24 more
core   +2 more sources

Optimized optomechanical crystal cavity with acoustic radiation shield [PDF]

open access: yes, 2012
We present the design of an optomechanical crystal nanobeam cavity that combines finite-element simulation with numerical optimization, and considers the optomechanical coupling arising from both moving dielectric boundaries and the photo-elastic effect.
Chan, Jasper   +4 more
core   +2 more sources

The Role of Light–Dark Regulation of the Chloroplast ATP Synthase

open access: yesFrontiers in Plant Science, 2017
The chloroplast ATP synthase catalyzes the light-driven synthesis of ATP and is activated in the light and inactivated in the dark by redox-modulation through the thioredoxin system.
Kaori Kohzuma   +11 more
doaj   +1 more source

Improved rotor position estimation by signal injection in brushless AC motors, accounting for cross-coupling magnetic saturation [PDF]

open access: yes, 2007
The paper presents an improved signal injection- based sensorless control method for permanent magnet brushless AC (BLAC) motors, accounting for the influence of cross-coupling magnetic saturation between the d- and q-axes.
Bingham, Chris   +4 more
core   +1 more source

Vibronic interactions in the visible and near-infrared spectra of C60− anions [PDF]

open access: yes, 2008
Electron-phonon coupling is an important factor in understanding many properties of the C60 fullerides. However, there has been little success in quantifying the strength of the vibronic coupling in C60 ions, with considerable disagreement between ...
Andrews, David L   +5 more
core   +1 more source

Coupling-Independent Capacitive Wireless Power Transfer Using Frequency Bifurcation

open access: yesEnergies, 2018
Capacitive wireless power transfer can be realized by mutually coupled capacitors operating at a common resonant frequency. An optimal load exists that maximizes either the efficiency or the power transfer to the load.
Ben Minnaert   +4 more
doaj   +1 more source

Characteristics of a 2-2 Piezoelectric Composite Transducer Made by Magnetic Force Assembly

open access: yesCrystals, 2022
A wider operational bandwidth, a higher electromechanical coupling factor, and lower acoustic impedance are important requirements for ultrasound transducers for use across many applications. Conventional 2-2 piezoelectric composite transducers have been
Taeyang Kim
doaj   +1 more source

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