Results 61 to 70 of about 4,488,266 (309)

Radiotherapy Delivery in Deep Inspiration for Pediatric Patients—Final Results of the Phase II Feasibility Study TEDDI

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Introduction The TEDDI trial tested the feasibility and reproducibility of deep‐inspiration breath‐hold (DIBH) in pediatric patients referred for radiotherapy. This report presents final results, including patient‐reported outcomes (PRO) and dosimetric comparison of DIBH and free‐breathing (FB).
Daniella Elisabet Østergaard   +11 more
wiley   +1 more source

Time-frequency equivalence using chirp signals for frequency response analysis

open access: yes, 2021
Abstract Frequency response analysis (FRA) of systems is a well-researched area. For years, FRA has been performed using input signals, which are a series of sinusoids or a sum of sinusoids. This results in large experimentation time, particularly when the system has to be probed at lower frequencies.
Resmi Suresh, Raghunathan Rengaswamy
openaire   +1 more source

Vibration-based damage detection in an aircraft wing scaled model using principal component analysis and pattern recognition [PDF]

open access: yes, 2008
This study deals with vibration-based fault detection in structures and suggests a viable methodology based on principal component analysis (PCA) and a simple pattern recognition (PR) method. The frequency response functions (FRFs) of the healthy and the
Cartmell, Matthew   +3 more
core   +1 more source

A Systematic Review of Evidence on the Clinical Effectiveness of Surveillance Imaging in Children With Medulloblastoma and Ependymoma

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Surveillance imaging aims to detect tumour relapse before symptoms develop, but it's unclear whether earlier detection of relapse leads to better outcomes in children and young people (CYP) with medulloblastoma and ependymoma. This systematic review aims to identify relevant literature to determine the efficacy of surveillance magnetic ...
Lucy Shepherd   +3 more
wiley   +1 more source

Fault localization on transformer winding by frequency response analysis and evidential reasoning

open access: yesThe Journal of Engineering, 2019
In this paper, a novel fault localization method combining frequency response analysis (FRA) and evidential reasoning process is proposed. FRA test is conducted at first so that we can obtain corresponding responses of several monitoring nodes on the ...
Jiajun Duan   +3 more
doaj   +1 more source

Nonconventional measurements on insulation materials high voltage bushings and power cables using frequency response analysis method

open access: yesEngineering Reports, 2020
Power utilities desire an alternate noninvasive test method for assessing the diagnostic status of power apparatus. The primary reason is to minimize the economic constraints and ensure lifetime and reliability of power apparatus within shorter duration.
Saravanakumar Arumugam
doaj   +1 more source

Nonlinear phononic crystals based on chains of disks alternating with toroidal structures [PDF]

open access: yes, 2011
We study experimentally the acoustic response of a load-bearing, phononic crystal composed of alternating steel disks, and polytetrafluoroethylene o-rings under precompression.
Brown, M.   +3 more
core   +2 more sources

Prognostic Impact of Treatment Modalities, Including Targeted Compartmental Radio‐Immunotherapy, in a Cohort of Neuroblastoma Patients With CNS Metastases at Relapse

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Neuroblastoma (NB) with central nervous system (CNS) metastases is rare at diagnosis, but occurs more often during relapse/progression. Patients with CNS metastases face a dismal prognosis, with no standardized curative treatment available.
Vicente Santa‐Maria Lopez   +13 more
wiley   +1 more source

Air Core Transformer Winding Disk Deformation: A Precise Study on Mutual Inductance Variation and Its Influence on Frequency Response Spectrum

open access: yesIEEE Access, 2018
It is well-known that the deformation of transformer winding can produce detectable changes to the frequency response spectrum compared with a referenced past measurement.
Mehdi Bagheri   +3 more
doaj   +1 more source

Modeling DFIG‐based system frequency response for frequency trajectory sensitivity analysis

open access: yesInternational Transactions on Electrical Energy Systems, 2018
This paper presents a trajectory frequency sensitivity analysis of a large-scale power system deploying its simple and reduced order system frequency response (SFR) under sudden load disturbances. By implementing this simple SFR model, the calculation time of the real-time simulation is reduced while maintaining the needed accuracy.
Rasoul Azizipanah‐Abarghooee   +3 more
openaire   +2 more sources

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