Results 31 to 40 of about 9,846,278 (313)

Waveguide group velocity determination by spectral interference measurements in near-field optical scanning microscopy [PDF]

open access: yes, 2006
Measurement of spectral interference with a near-field scanning optical microscope is used to determine directly the variation of group velocity between modes of a planar slab waveguide as the modes propagate along the ...
J.J. Baumberg   +13 more
core   +2 more sources

Stress and Trauma Symptoms in Young Palestine Refugee Children Following the May 2021 Escalation in Gaza

open access: yesJAACAP Open
Objective: Children in the Gaza Strip have lived their entire lives with chronic economic and political insecurity punctuated by periodic escalations of overt combat. Clinicians need to learn how children raised in these conditions respond to escalations
Nina Schöler, MSc   +3 more
doaj   +1 more source

Near Field Models of Spatially-Fed Planar Arrays and Their Application to Multi-Frequency Direct Layout Optimization for mm-Wave 5G New Radio Indoor Network Coverage

open access: yesSensors, 2022
Two near field models for the analysis of spatially fed planar array antennas are presented, compared and applied to a multi-frequency wideband direct layout optimization for mm-Wave 5G new radio (NR) indoor network coverage.
Daniel R. Prado
doaj   +1 more source

An Extended Kalman Filter for Direct, Real-Time, Phase-Based High Precision Indoor Localization

open access: yesIEEE Access, 2019
Radio-based indoor localization is currently a very vibrant scientific research field with many potential use cases. It offers high value for customers, for example, in the fields of robotics, logistics, and automation, or in context-aware IT services ...
Melanie Lipka   +2 more
doaj   +1 more source

Computational Lens for the Near Field

open access: yesPhysical Review Letters, 2004
A method is presented to reconstruct the structure of a scattering object from data acquired with a photon scanning tunneling microscope. The data may be understood to form a Gabor type near-field hologram and are obtained at a distance from the sample where the field is defocused and normally uninterpretable.
Carney, P. Scott   +5 more
openaire   +5 more sources

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani   +7 more
wiley   +1 more source

New methods to reduce leakage errors in planar near-field measurements [PDF]

open access: yes, 2011
This paper describes two methods to cancel the effect of two kinds of leakage signals which may be presented when an antenna is measured in a planar near-field range.
Cano Facila, Francisco Jose   +2 more
core  

Non-Uniform sampling in near field measurement: Experimental results

open access: yes, 2021
In this paper, the problem of sampling the field radiated by a planar source observed over a finite planar aperture located in the near-field is addressed. In particular, the paper is devoted to assess the performance of the sampling strategy proposed in
Giovanni, Leone   +3 more
core   +1 more source

Chemotherapy for Spinal Cord Intramedullary Pediatric Low‐Grade Glioma—A Systematic Literature Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric intramedullary low‐grade gliomas (PIMLGGs) are rare neoplasms that present unique clinical and management challenges. Although surgery remains the primary tool for tissue diagnosis and decompression, complete gross‐total resection is frequently unfeasible due to the infiltrative nature of these lesions.
Olga M. Sergeenko   +5 more
wiley   +1 more source

Depth Prediction Improvement for Near-Field iToF Lidar in Low-Speed Motion State

open access: yesSensors
Current deep learning-based phase unwrapping techniques for iToF Lidar sensors focus mainly on static indoor scenarios, ignoring motion blur in dynamic outdoor scenarios.
Mena Nagiub   +4 more
doaj   +1 more source

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