نتایج جستجو برای: measurements errors

تعداد نتایج: 496019  

2013
Mauricio Gutiérrez Lukas Svec Alexander Vargo Kenneth R. Brown

Mauricio Gutiérrez,1 Lukas Svec,2 Alexander Vargo,3 and Kenneth R. Brown1,* 1Schools of Chemistry and Biochemistry, Computational Science and Engineering, and Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, USA 2Department of Physics, University of Washington, Seattle, Washington 98195-2350, USA 3Department of Mathematics and Statistics, Haverford College, Haverford, Penn...

M. Sohrabpour, N. Babaei Bidmeshki, S.R. Mahdavi,

Background: The purpose of this project was to derive the brachytherapy dosimetric functions described by American Association of Physicists in Medicine (AAPM) TG-43 U1 based on high dose rate 192I sources. Materials and Methods: The method utilized included both simulation of the designed Polymethyl methacrylate (PMMA) phantom using the Monte Carlo of MCNP4C and benchmarking of the simulation ...

Journal: :Biophysical journal 2007
Changhong Ke Yong Jiang Monica Rivera Robert L Clark Piotr E Marszalek

In AFM-based single molecule force spectroscopy, it is tacitly assumed that the pulling direction coincides with the end-to-end vector of the molecule fragment being stretched. By systematically varying the position of the attachment point on the substrate relative to the AFM tip, we investigate empirically and theoretically the effect of the pulling geometry on force-extension characteristics ...

2010
M. Toohey K. Strong P. F. Bernath C. D. Boone K. A. Walker A. I. Jonsson T. G. Shepherd

[1] In order to validate the reported precision of space‐based atmospheric composition measurements, validation studies often focus on measurements in the tropical stratosphere, where natural variability is weak. The scatter in tropical measurements can then be used as an upper limit on single‐profile measurement precision. Here we introduce a method of quantifying the scatter of tropical measu...

Journal: :International Journal of Metrology and Quality Engineering 2015

Journal: :European Heart Journal 2022

Abstract Background Hydrostatic pressure impacts intracoronary measurements, generally causing overestimation of stenosis significance in the LAD and underestimation non-LAD vessels [1–3]. Different cut-offs have been suggested for post-PCI FFR [4], corresponding to average hydrostatic effects misclassification may be avoided if are eliminated. Purpose We aimed compare effect on resting distal-...

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