Results 141 to 150 of about 7,895,299 (362)
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background Acceleration treatment (AT) is a novel treatment planning parameter introduced in the tomotherapy‐dedicated treatment planning system, Precision. This study explores the effects of AT on tomotherapy plans using helical (TomoHelical) and direct (TomoDirect) irradiation techniques.
Ryosuke Shirata +9 more
wiley +1 more source
Angle-preserving quantized phase embeddings [PDF]
SPIE Proceedings, 2013 We demonstrate that the phase of randomized complex-valued projections of real-valued signals preserves information about the angle, i.e., the correlation, between those signals. This information can be exploited to design quantized angle-preserving embeddings, which represent such correlations using a nite bit-rate.
openaire +2 more sources
Dose rate correction of a diode array for universal wedge field dosimetric verification
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose To study the performance of MapCHECK 3 (MC3) in measuring universal wedge fields and propose a dose rate correction strategy to improve MC3 measurement accuracy. Materials and methods Universal wedge fields with different wedge angles and field sizes were measured at different depths using MC3.
Linyi Shen +6 more
wiley +1 more source
Phase angle and its determinants in healthy subjects: influence of body composition.
American Journal of Clinical Nutrition, 2016 BACKGROUND The phase angle (PA) has been used as a prognostic marker in several clinical situations. Nevertheless, its biological meaning is not completely understood.
M. C. Gonzalez +4 more
semanticscholar +1 more source
Angle-of-Attack Modulation in Trajectory Tracking for a Reusable Launch Vehicle [PDF]
arXiv, 2016 This paper deals with the problem of angle-of-attack modulation with the aim of enhancing transient performance of entry guidance during bank reversals, while compensating adverse effects of fast time-varying transient disturbances. An extended single-input/single-output system is developed in the velocity domain by means of a dynamic extension ...
arxiv
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose This study evaluates the technical feasibility of adapting a surface monitoring system, designed for conventional four‐dimensional computed tomography (4DCT), to an intelligent, breathing‐adapted 4DCT and examines its potential to expand the currently limited range of supported surrogate systems.
Niklas Lackner +4 more
wiley +1 more source
The effect of errors in intensities on phase angles determined by the anomalous-dispersion method [PDF]
, 1963 V. Amirthalingam, D. F. Grant
openalex +1 more source
CT&F Ciencia, Tecnología & Futuro, 2006 This paper presents some fundamental concepts of seismic anisotropy specifically those which have hexagonal symmetry (ordinarily called transversely isotropic in geophysics jargon).
Karen Pachano +5 more
doaj
Monte Carlo modeling of radiation dose from radiation therapy with superficial x‐rays
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Introduction Superficial x‐rays (50–100 kVp) are used for treating non‐melanoma skin cancer and intraoperative radiation therapy (IORT). At these energies, the photoelectric effect significantly increases absorbed dose to bone compared to soft tissue.
Reham Barghash +3 more
wiley +1 more source
Phase Angle Considerations in the Modeling of Intermittent Turbulence [PDF]
, 1972 Elly H. Spark, John A. Dutton
openalex +1 more source