Results 51 to 60 of about 2,327,371 (190)

Adaptive multiresolution schemes with local time stepping for two-dimensional degenerate reaction-diffusion systems

open access: yes, 2008
We present a fully adaptive multiresolution scheme for spatially two-dimensional, possibly degenerate reaction-diffusion systems, focusing on combustion models and models of pattern formation and chemotaxis in mathematical biology.
Baier, Ricardo Ruiz   +3 more
core   +1 more source

The effect of ultrasound wave path estimation to defect characterization capability in half-skip total focusing method

open access: yesResearch and Review Journal of Nondestructive Testing, 2023
The total focusing method (TFM) is a post-processing imaging technique applied on full matrix capture (FMC) ultrasonic inspection (UT) dataset. In TFM the ultrasonic wave energy is synthetically focused on every pixel in the image region of interest ...
Xiangyu Lei   +2 more
doaj   +1 more source

How Much Multiuser Diversity is Required for Energy Limited Multiuser Systems?

open access: yes, 2010
Multiuser diversity (MUDiv) is one of the central concepts in multiuser (MU) systems. In particular, MUDiv allows for scheduling among users in order to eliminate the negative effects of unfavorable channel fading conditions of some users on the system ...
Ardakani, Masoud   +2 more
core   +1 more source

Power and limitations of electrophoretic separations in proteomics strategies [PDF]

open access: yes, 2009
Proteomics can be defined as the large-scale analysis of proteins. Due to the complexity of biological systems, it is required to concatenate various separation techniques prior to mass spectrometry.
Aebersold   +225 more
core   +4 more sources

Analysis of Multicore CPU and GPU toward Parallelization of Total Focusing Method ultrasound reconstruction [PDF]

open access: yes, 2012
International audienceUltrasonic imaging and reconstruction tools are commonly used to detect, identify and measure defects in different mechanical parts.
Bimbard, Franck   +5 more
core   +2 more sources

Ultrasonic Total Focusing Imaging Method of Multilayer Composite Structures Using the Root-Mean-Square (RMS) Velocity

open access: yesAdvances in Materials Science and Engineering, 2021
Multilayer composite structures have been widely used in industrial manufacturing, and nondestructive testing of these multilayer structures is to ensure their reliable quality and performance.
Xufei Guo, Yan Han
doaj   +1 more source

Stage 1 Round-Robin Report: On the Use of Total Focusing Method for Sizing Flaws in Assessing Probability of Detection

open access: yese-Journal of Nondestructive Testing, 2023
Reliability of non-destructive (NDT) procedures is usually assessed using probability of detection (POD). However, the reliability of the POD is rarely questioned. A POD usually produces a curve that relates the size of a defect to the likelihood that
Mariana Burrowes M. Guimarães   +3 more
doaj   +1 more source

Factors associated with costs of hospitalization of severely mentally Ill patients [PDF]

open access: yes, 2016
Background: Efforts to contain costs associated with general medical care include particular efforts for psychiatric disorders. Hospitalization represents the largest component of costs for psychiatric care and there is growing interest in balancing ...
Baldessarini, RossJ   +4 more
core   +1 more source

Near-surface defect detection in additively manufactured components using laser induced phased arrays with surface acoustic wave crosstalk suppression

open access: yesMaterials & Design, 2023
In-process inspection of the additive manufacturing process requires a technique that can provide reliable measurements given the extreme operating environments, the small size of the defects and the cyclic melting and heating of the material, caused by ...
Geo Davis   +11 more
doaj   +1 more source

Atom focusing by far-detuned and resonant standing wave fields: Thin lens regime [PDF]

open access: yes, 1999
The focusing of atoms interacting with both far-detuned and resonant standing wave fields in the thin lens regime is considered. The thin lens approximation is discussed quantitatively from a quantum perspective. Exact quantum expressions for the Fourier
A.G. Rojo   +39 more
core   +2 more sources

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