Results 61 to 70 of about 3,268,285 (233)

Josephson coupling and plasma resonance in vortex crystal

open access: yes, 2000
We investigate the magnetic field dependence of the plasma resonance frequency in vortex crystal state. We find that low magnetic field induces a small correction to the plasma frequency proportional to the field.
A.E. Koshelev   +18 more
core   +2 more sources

Quantum phase transition in the Dicke model with critical and non-critical entanglement

open access: yes, 2012
We study the quantum phase transition of the Dicke model in the classical oscillator limit, where it occurs already for finite spin length. In contrast to the classical spin limit, for which spin-oscillator entanglement diverges at the transition ...
A. Alvermann   +7 more
core   +1 more source

Life History, Diet, Abundance and Distribution, and Length-Frequencies of Selected Invertebrates in Florida Bay, Everglades National Park, Florida [PDF]

open access: yes, 2006
This report presents information on the life history, diet, abundance and distribution, and length-frequency distributions of five invertebrates in Florida Bay, Everglades National Park.
Cheshire, Robin T.   +3 more
core  

Near-Field Microwave Microscopy on nanometer length scales

open access: yes, 2004
The Near-Field Microwave Microscope (NSMM) can be used to measure ohmic losses of metallic thin films. We report on the presence of a new length scale in the probe-to- sample interaction for the NSMM.
Atif Imtiaz   +5 more
core   +1 more source

Length‐Based Assessment of the Seven Most Commonly Caught Coral Reef Fish Species to Support Improve Management of Small‐Scale Fisheries in Southwest Madagascar

open access: yesAquaculture, Fish and Fisheries
The status of most fish stocks in Madagascar remains poorly documented. Given their importance for food security and livelihoods, it is necessary to define management measures with reliable data.
Miarisoa Lalaina Rakotonaivo   +6 more
doaj   +1 more source

Evolution of the polarization of the optical afterglow of the gamma-ray burst GRB 030329

open access: yes, 2003
We report 31 polarimetric observations of the afterglow of GRB 030329 with high signal-to-noise and high sampling frequency. We establish the polarization light curve, detect sustained polarization at the percent level, and find significant variability ...
Barnbantner, O.   +25 more
core   +1 more source

Study on Application of CYCBD based on PSO in Fault Feature Extraction of Rolling Bearing

open access: yesJixie chuandong, 2021
The blind deconvolution based on cyclostationarity maximization (CYCBD) is applied to solve the problem that the periodic transient impacts is not obvious at the initial stage of rolling bearing failure under background noise.
Yutao Liu, Huer Sun
doaj  

The Height-Adaptive Parameterized Step Length Measurement Method and Experiment Based on Motion Parameters

open access: yesSensors, 2018
In order to tackle the inaccurate step length measurement of people with different heights and in different motion states, a height-adaptive method of step length measurement based on motion parameters is proposed in this paper.
Yanshun Zhang   +5 more
doaj   +1 more source

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