Total and dissociative photoionization cross sections of N2 from threshold to 107 eV [PDF]
The absolute cross sections for the production of N(+) and N2(+) were measured from the dissociative ionization threshold of 115 A. In addition, the absolute photoabsorption and photoionization cross sections were tabulated between 114 and 796 A.
Angel, G. C. +3 more
core +1 more source
Impurity Effects on Quantum Depinning of Commensurate Charge Density Waves
, 2000 We investigate quantum depinning of the one-dimensional (1D) commensurate charge-density wave (CDW) in the presence of one impurity theoretically. Quantum tunneling rate below but close to the threshold field is calculated at absolute zero temperature by
Fukuyama H. +12 more
core +2 more sources
Noise and the absolute thresholds of cone and rod vision [PDF]
Vision Research, 1992 Literature data on light detection by cone and rod vision at absolute threshold are analysed in order (1) to decide whether the threshold performance of dark-adapted cone vision can, like that of rod vision, be consistently explained as limited by noise from a "dark light"; (2) to obtain comparable estimates of the dark noise and dark light of (foveal)
openaire +3 more sources
C73 PICK YOUR THRESHOLD! HOW TO CALCULATE THE ANAEROBIC THRESHOLD TO STRATIFY HEART FAILURE PROGNOSIS: A COMPARISON BETWEEN ABSOLUTE VALUE, PERCENTAGE OF PEAK VO2 OR PERCENTAGE OF PREDICTED MAXIMUM VO2 IN A LARGE MULTICENTER COHORT OF HFREF PATIENTS WHO UNDER [PDF]
, 2022 Scoccia Elisabetta +7 more
openalex +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab +6 more
wiley +1 more source
Determination of Absolute-Intensity Thresholds and Frequency-Difference Thresholds in Cats [PDF]
, 1960 Donald N. Elliott +2 more
openalex +1 more source
Comprehensive clinical evaluation of novel 4DCT‐based lung function imaging methods
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Methods have been developed that apply image processing to 4DCTs to generate 4DCT‐ventilation/perfusion lung imaging. Traditional methods for 4DCT‐ventilation rely on Hounsfield‐Unit (HU) density‐change methods and suffer from poor numerical robustness while not providing 4DCT‐perfusion data.
Ehsan Golkar +6 more
wiley +1 more source
A Python package for fast GPU‐based proton pencil beam dose calculation
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Open‐source GPU‐based Monte Carlo (MC) proton dose calculation algorithms provide high speed and unparalleled accuracy but can be complex to integrate with new applications and remain slower than GPU‐based pencil beam (PB) methods, which sacrifice some physical accuracy for sub‐second plan calculation.
Mahasweta Bhattacharya +4 more
wiley +1 more source
Wavelength discrimination by the goldfish near absolute visual threshold [PDF]
, 1978 Maureen K. Powers, Stephen S. Easter
openalex +1 more source
Using deep learning generated CBCT contours for online dose assessment of prostate SABR treatments
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Prostate Stereotactic Ablative Body Radiotherapy (SABR) is an ultra‐hypofractionated treatment where small setup errors can lead to higher doses to organs at risk (OARs). Although bowel and bladder preparation protocols reduce inter‐fraction variability, inconsistent patient adherence still results in OAR variability.
Conor Sinclair Smith +8 more
wiley +1 more source