Results 41 to 50 of about 343,701 (293)

Kinetic and Transport Equations for Localized Excitations in Sine-Gordon Model

open access: yes, 1999
We analyze the kinetic behavior of localized excitations - solitons, breathers and phonons - in Sine-Gordon model. Collision integrals for all type of localized excitation collision processes are constructed, and the kinetic equations are derived.
C. S. Gardner   +15 more
core   +1 more source

On a New Integral Inequality: Generalizations and Applications

open access: yesAxioms, 2022
In this paper, we present some generalizations and improvements of a new integral inequality from the 29th IMC in 2022. Some applications of our new results are also provided.
Huaping Huang, Wei-Shih Du
doaj   +1 more source

Resonant steps and spatiotemporal dynamics in the damped dc-driven Frenkel-Kontorova chain

open access: yes, 1998
Kink dynamics of the damped Frenkel-Kontorova (discrete sine-Gordon) chain driven by a constant external force are investigated. Resonant steplike transitions of the average velocity occur due to the competitions between the moving kinks and their ...
A. A. Middleton   +40 more
core   +2 more sources

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar   +8 more
wiley   +1 more source

Variable fractional power‐least mean square based control algorithm with optimized PI gains for the operation of dynamic voltage restorer

open access: yesIET Power Electronics, 2021
The operation of Dynamic Voltage Restorer has been studied for the mitigation of supply voltage disturbances like sag, swell, distortions, and unbalances.
Talada Appala Naidu   +3 more
doaj   +1 more source

On the validity of mean-field amplitude equations for counterpropagating wavetrains

open access: yes, 1994
We rigorously establish the validity of the equations describing the evolution of one-dimensional long wavelength modulations of counterpropagating wavetrains for a hyperbolic model equation, namely the sine-Gordon equation.
C E Wayne   +17 more
core   +2 more sources

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

The spin-1 ladder : A bosonization study

open access: yes, 1999
We construct a field-theoretic description of two coupled spin-1 Heisenberg chains, starting with the known representation of a single spin-1 chain in terms of Majorana fermions (or Ising models).
Allen, D., Sénéchal, D.
core   +1 more source

Potential Early Risk Biomarkers for Reduced Forced Expiratory Volume in Children Post‐Hematopoietic Cell Transplantation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT We sought to identify potential early risk biomarkers for lung disease in children post‐allogeneic HCT. Patients with pulmonary function tests 3 months post‐transplant and plasma samples between days 7 and 14 post‐HCT were included. Six of 27 subjects enrolled had reduced forced expiratory volume 1 (FEV1) z scores.
Isabella S. Small   +3 more
wiley   +1 more source

TIME SERIES ANALYSIS OF THE AFOEV OBSERVATIONS OF SYMBIOTIC STARS UV AUR, TX CVN AND V 1329 CYG

open access: yesOdessa Astronomical Publications, 2017
One frequency sine approximations allowed to obtain the following best fit parameters: periods P = 389.23 ± 0.47d, 3779±73d, 958.7±1.2d mean brightness a = 9.23±0.02m, 9.73±0.01m, 13.26 ±0.07m. semi-amplitudes r = 0.92 ± 0.026m, 0.02 ± 0.007m, 0.49±0.10m
L. L. Chinarova   +2 more
doaj   +1 more source

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