Many experimental factors and uncontrollable factors may introduce errors in the distance measurement by continuous wave electron paramagnetic resonance. To deal with this problem, several C60 nitroxide diradical adducts with rigid structure and definite molecular dimension were used as distance calibration rulers. Based on the improvement of distance calculation program via adding simulation p...

In order to improve the measurement accuracy of the linear CCD in the intersection of vertical target measurement system, the calibration model of linear CCD’s internal parameters is established and the various factors that affect the accuracy in the calibration process are analyzed. Making use of the linear CCD imaging optical principle, the optical center and the effective focal length are ca...

Calibration of accelerometers can be reduced to 3D-ellipsoid fitting problems. Changing extrinsic factors like temperature, pressure or humidity, as well as intrinsic factors like the battery status, demand to calibrate the measurements permanently. Thus, there is a need for fast calibration algorithms, e.g. for online analyses. The primary aim of this paper is to propose a non-iterative calibr...

Abstract Previous studies have investigated the behaviour of prestressed stayed steel columns with a view to developing design guidelines. As most modern standards move towards calibrated safety factors, there is need explore expectations these structures from probabilistic perspective. This has not been studied in literature till now, perhaps due lack clarity on underlying uncertainties, failu...

Zinc sulfide coated scintillation cells are the primary method for measuring radon-222 at the U.S. Environmental Protection Agency (EPA), Office of Radiation Programs (ORP), Eastern Environmental Radiation Facility (EERF). These cells are used to measure concentrations of radon in exposure chambers that are used to calibrate or test other devices or instruments. Individual cells are calibrated ...

This study aims to develop a calibration system for radioactivity of beta sources using a calibration constant which derived from comparing measurement and simulation. It is hard to measure the activity of beta emitter isotope due to selfabsorption and scattering. So the activity involves high levels of uncertainty. The surface dose of Sr/Y-90 standard isotope was measured using extrapolation c...