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

