Results 61 to 70 of about 3,178,978 (295)
Pediatric 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
On the Impact of Amplitude Variation on Interpolated DFT Method and How to Reduce It
Elektronika ir Elektrotechnika, 2018 The Interpolated DFT is often used to improve frequency estimation of the spectral lines of DFT’s spectrum. If the measured spectral line is distorted the accuracy of Interpolated DFT is decreased. Such distortion could be a result of amplitude variation
Wojciech Oliwa, Grzegorz Wieczorek
doaj +1 more source
A Self-Adaptive and Self-Sufficient Energy Harvesting System
Sensors, 2020 Self-adaptive vibration energy harvesters convert the kinetic energy from vibration sources into electrical energy and continuously adapt their resonance frequency to the vibration frequency.
Mario Mösch +2 more
doaj +1 more source
Low-error and broadband microwave frequency measurement in a silicon chip
, 2015 Instantaneous frequency measurement (IFM) of microwave signals is a fundamental functionality for applications ranging from electronic warfare to biomedical technology.
Aalto, Timo +8 more
core +1 more source
The Journal of Engineering, 2019 This study focuses on the impact of the dynamics of the incremental optical encoder, particularly, at low speed, when the phase margin of the closed-loop system is reduced.
Yeny Vazquez-Gutierrez +2 more
doaj +1 more source
A Linearized Model of FID Signal for Increasing Proton Magnetometer Precision
Measurement Science Review, 2020 A linearized model of frequency measurement for the Free Induction Decay (FID) signal is proposed to increase the Proton Magnetometer (PM) precision. First, the nonlinear model of frequency measurement is set up according to the characteristic of the FID
Tan Chao +3 more
doaj +1 more source
, 2013 The LISA Pathfinder mission to space employs an optical metrology system (OMS) at its core to measure the distance and attitude between two freely floating test-masses to picometer and nanorad accuracy, respectively, within the measurement band of [1 mHz,
Flatscher, Reinhold +1 more
core +1 more source
Powerline frequency measurement
, 1986 A microcomputer has been used to measure powerline frequency with a precision of six decimal digits (0.0001 Hz) using an averaging time of 3 to 4 min. The algorithm for frequency measurement requires no multiplication or division operations, so a very simple microprocessor can be used.
R. B. Rochelle +2 more
openaire +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Psychological safety (PS) is essential for teamwork, communication, and patient safety in complex healthcare environments. In pediatric oncology, interprofessional collaboration occurs under high emotional and organizational demands. Low PS may increase stress, burnout, and adverse events.
Alexandros Rahn +4 more
wiley +1 more source
Multi-parameter microwave quantum sensing with a single atomic probe
Scientific ReportsWe demonstrate a multi-parameter sensing scheme for free space microwave electric and magnetic fields in single vapor cell based on the atom-based microwave detection techniques.
Zhigang Feng +3 more
doaj +1 more source