Results 131 to 140 of about 7,895,299 (362)

Quantum theory of angle and relative-phase measurement [PDF]

Physical Review A, 2014
The complementarity between time and energy, as well as between an angle and a component of angular momentum, is described at three different layers of understanding. The phenomena of super-resolution are readily apparent in the quantum phase representation which also reveals that entanglement is not required.
openaire   +3 more sources

Effects of cardiac motion on dose distribution during stereotactic arrhythmia radioablation treatment: A simulation and phantom study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Cardiac motion may degrade dose distribution during stereotactic arrhythmia radioablation using the CyberKnife system, a robotic radiosurgery system. This study evaluated the dose distribution changes using a self‐made cardiac dynamic platform that mimics cardiac motion. Methods The cardiac dynamic platform was operated with amplitudes
Takayuki Miyachi, Takeshi Kamomae, Fumitaka Kawabata, Kuniyasu Okudaira, Mariko Kawamura, Shunichi Ishihara, Shinji Naganawa   +6 more
wiley   +1 more source

Bioelectrical phase angle at diagnosis as a prognostic factor for survival in advanced head and neck cancer

European Archives of Oto-Rhino-Laryngology, 2018
ObjectiveBioelectrical impedance analysis (BIA) is used to measure the patient’s body composition, fat-free mass, phase angle (PA), and standardized phase angle (SPA), which are affected by malnutrition.
Lars Axelsson, E. Silander, I. Bosaeus, E. Hammerlid   +3 more
semanticscholar   +1 more source

From 2D to 3D gamma passing rate tolerance and action limits for patient‐specific quality assurance in volumetric‐modulated arc therapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Volumetric modulated arc therapy (VMAT) requires an accurate patient‐specific quality assurance (PSQA) program. In clinical practice, this is usually performed using the γ‐index and the two‐dimensional gamma passing rate (2D %GP). A three‐dimensional (3D) index incorporating the patient anatomy could be more useful for the 3D dose ...
Christos Zarros, George Patatoukas, Nikos Kollaros, Marina Chalkia, Andromachi Kougioumtzopoulou, Vasilios Kouloulias, Kalliopi Platoni   +6 more
wiley   +1 more source

A Novel Method for Screening the PMU Phase Angle Difference Data Based on Hyperplane Clustering

IEEE Access, 2019
Compared with the traditional supervisory control and data acquisition (SCADA) data, phasor measurement unit (PMU) data is characterized by phase angle measurement and high reporting speed (perhaps 100 Hz).
A. Xue, Shuang Leng, Yecheng Li, Feiyang Xu, K. Martin, Jingsong Xu   +5 more
semanticscholar   +1 more source

NBS phase angle calibration services

, 1988
CODEN:XNBSAV"--T.p. verso. ; "May 1988." ; Includes bibliographical references (p. 20). ; Mode of access: Internet.
Turgel, R. S., Vecchia, Dominic F., Mulrow, J. M.   +2 more
openaire   +1 more source

Apparent Contact Angle and Contact Angle Hysteresis on Liquid Infused Surfaces [PDF]

arXiv, 2016
We theoretically investigate the apparent contact angle and contact angle hysteresis of a droplet placed on a liquid infused surface. We show that the apparent contact angle is not uniquely defined by material parameters, but also has a strong dependence on the relative size between the droplet and its surrounding wetting ridge formed by the infusing ...
arxiv  

Modelling of a double‐scattering proton therapy nozzle using the FLUKA Monte Carlo code and analysis of linear energy transfer in patients treated for prostate cancer

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background The dose‐averaged linear energy transfer (LETD) in proton therapy (PT) has in pre‐clinical studies been linked to the relative biological effectiveness (RBE) of protons. Until recently, the most common PT delivery method in prostate cancer has been double‐scattered PT, with LETD only available through dedicated Monte Carlo (MC ...
Rasmus Klitgaard, Lars Fredrik Fjæra, Camilla Hanquist Stokkevåg, Perry Johnson, Mark Artz, Nancy Price Mendenhall, Curtis Bryant, Ludvig Paul Muren   +7 more
wiley   +1 more source

A review of artificial intelligence in brachytherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Artificial intelligence (AI) has the potential to revolutionize brachytherapy's clinical workflow. This review comprehensively examines the application of AI, focusing on machine learning and deep learning, in various aspects of brachytherapy.
Jingchu Chen, Richard L. J. Qiu, Tonghe Wang, Shadab Momin, Xiaofeng Yang   +4 more
wiley   +1 more source

On the Determination of the Phase Angle between two Sinusoidal Variations of Equal Frequency by means of a Lissajou Figure [PDF]

, 1943
Mary K. B. Harwood, Robert G. Manley
openalex   +1 more source