Results 51 to 60 of about 28,422,071 (389)

Monitoring the Dynamic Response of a Buried Polyethylene Pipe to a Blast Wave: An Experimental Study

open access: yesApplied Sciences, 2019
Although the use of polyethylene (PE) pipelines has become increasingly widespread in recent years, few studies have addressed their seismic design and ability to withstand blast waves.
Dongwang Zhong   +3 more
doaj   +1 more source

Asymptotic analysis and spectrum of three anyons

open access: yes, 1993
The spectrum of anyons confined in harmonic oscillator potential shows both linear and nonlinear dependence on the statistical parameter. While the existence of exact linear solutions have been shown analytically, the nonlinear dependence has been ...
Date, G., Krishna, M., Murthy, M. V. N.
core   +1 more source

Bohr-Sommerfeld Quantization of Space [PDF]

open access: yes, 2012
We introduce semiclassical methods into the study of the volume spectrum in loop gravity. The classical system behind a 4-valent spinnetwork node is a Euclidean tetrahedron.
A. Ashtekar   +12 more
core   +2 more sources

Power Spectrum Analysis of the OMC1 Image at 1.1 mm Wavelength [PDF]

open access: yes, 2012
We present a 1.1mm emission map of the OMC1 region observed with AzTEC, a new large-format array composed of 144 silicon-nitride micromesh bolometers, that was in use at the James Clerk Maxwell Telescope (JCMT).
Kim, Sungeun, Youn, Soyoung
core   +1 more source

Inflation as a Probe of Short Distance Physics [PDF]

open access: yes, 2001
We show that a string-inspired Planck scale modification of general relativity can have observable cosmological effects. Specifically, we present a complete analysis of the inflationary perturbation spectrum produced by a phenomenological Lagrangian that
Easther, Richard   +3 more
core   +3 more sources

Stability of formoterol concentration in scalp hair of patients using maintenance formoterol therapy for asthma or COPD (INCTFISH)

open access: yesFrontiers in Pharmacology
IntroductionHair testing provides a non-invasive, objective method with a long (retrospective) surveillance window for assessing medication adherence.
E. Sportel   +12 more
doaj   +1 more source

Design Spectrum Analysis in NASTRAN [PDF]

open access: yes, 1984
The utility of Design Spectrum Analysis is to give a mode by mode characterization of the behavior of a design under a given loading. The theory of design spectrum is discussed after operations are explained.
Butler, T. G.
core   +1 more source

Redshift-space Distortions of the Power Spectrum of Cosmological Objects on a Light Cone : Explicit Formulations and Theoretical Implications [PDF]

open access: yes, 1999
We examine the effects of the linear and the cosmological redshift-space distortions on the power spectrum of cosmological objects on a light cone. We develop theoretical formulae for the power spectrum in linear theory of density perturbations in a ...
Ballinger W. E.   +9 more
core   +3 more sources

Wildfire Detection Using Sound Spectrum Analysis Based on the Internet of Things

open access: yesItalian National Conference on Sensors, 2019
Wildfire is a sudden and hazardous natural disaster. Currently, many schemes based on optical spectrum analysis have been proposed to detect wildfire, but obstacles in forest areas can decrease the efficiency of spectral monitoring, resulting in a ...
Shuo Zhang   +3 more
semanticscholar   +1 more source

Biophysical analysis of angiotensin II and amyloid‐β cross‐interaction in aggregation and membrane disruption

open access: yesFEBS Letters, EarlyView.
Angiotensin II (AngII), a neuropeptide, interacts with amyloid‐β (Aβ), a key player in Alzheimer's disease. This study reveals that AngII reduces Aβ aggregation and membrane disruption in vitro. Biophysical assays and molecular modeling suggest AngII binds disordered Aβ forms, potentially modulating early amyloidogenic events and contributing to ...
Mohsen Habibnia   +5 more
wiley   +1 more source

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