Results 21 to 30 of about 546,551 (249)

Sound field separation with cross measurement surfaces. [PDF]

open access: yesPLoS ONE, 2018
With conventional near-field acoustical holography, it is impossible to identify sound pressure when the coherent sound sources are located on the same side of the array.
Jin Mao, Jinfu Du
doaj   +1 more source

A New Approach for Acoustic Field Interpolation

open access: yesCybernetics and Information Technologies, 2016
The present paper describes the basic performance of the 18 microphone acoustic camera manufactured by Brüel & Kjær for acoustic field reconstruction. The new approach for acoustic field interpolation is proposed and investigated.
Chyrka Iu. D.
doaj   +1 more source

A Planar Acoustic Field Reconstruction Method Based on Fast Wave Superposition Spectrum and Sparse Sampling

open access: yesShock and Vibration, 2022
Based on the fast Fourier wave superposition spectrum method, a new equivalent source method (ESM) with a sparse sampling technique is proposed. First, the equivalent source intensities are expanded on a rectangular virtual surface using a bidirectional ...
Yang Zhang   +5 more
doaj   +1 more source

Multi-Rate Real-Time Simulation Method Based on the Norton Equivalent

open access: yesEnergies, 2020
For the problem of poor accuracy of the existing multi-rate simulation methods, this paper proposes a multi-rate real-time simulation method based on the Norton equivalent, compared with multi-rate simulation method based on the ideal source equivalent ...
Junjie Zhu, Bingda Zhang
doaj   +1 more source

Equivalent Calibration Method Based on a Blackbody Baffle Substitution for a Large External Surface-Source Blackbody

open access: yesSensors, 2022
Highly accurate measurements of infrared systems cannot be achieved without precise radiometric calibrations. In order to correctly interpret and process infrared images and monitor the performance of infrared cameras, their radiometric calibration is ...
Xinyu Pang   +5 more
doaj   +1 more source

Language, Culture, and Cancer: Qualitative Insights Into Communication Disparities Among Spanish‐Speaking Caregivers of Children With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Latino children are projected to make up nearly one‐third of United States (US) children by 2060, and many of their caregivers speak Spanish. Prior survey research has documented communication difficulties for Spanish‐speaking caregivers of children with cancer, but contemporary qualitative data are limited.
Jenny Ruiz   +6 more
wiley   +1 more source

Transforming Total‐Field Magnetic Anomalies Into Three Components Using Dual‐Layer Equivalent Sources

open access: yesGeophysical Research Letters, 2020
The equivalent source is a simple and effective method to level and manipulate magnetic data. However, large misfits between the predicted and synthetic data for different components of the magnetic field are observed when a single layer equivalent ...
Duan Li   +5 more
doaj   +1 more source

Bone Mineral Density After Contemporary Treatment for Acute Lymphoblastic Leukaemia: A Matched Cross‐Sectional Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Reduced bone mineral density (BMD) has been reported in survivors of childhood and young adult acute lymphoblastic leukaemia (ALL); however, data from cohorts treated with contemporary protocols and including matched controls remain limited.
Karen Schow Jensen   +10 more
wiley   +1 more source

Bone and Soft Tissue Neoplasms in Infants Versus Older Children: A Report From the Cancer in Young People in Canada Program

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Infant bone and soft tissue neoplasms present distinct clinical challenges and lack large‐scale data to inform treatment decisions. This study aims to characterize bone and soft tissue neoplasms in infants in Canada and to compare their outcomes with those of older pediatric patients.
Samuel Sassine   +21 more
wiley   +1 more source

A Forward−Backward Splitting Equivalent Source Method Based on S−Difference

open access: yesApplied Sciences
The regularization method has a direct impact on the accuracy of the reconstructed sound field in the process of inverse calculation of near−field acoustic holography using the equivalent source method.
Jin Mao   +3 more
doaj   +1 more source

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