Results 21 to 30 of about 6,359,946 (309)

THE EULER NUMBER OF DISCRETISED SETS – SURPRISING RESULTS IN THREE DIMENSIONS

open access: yesImage Analysis and Stereology, 2011
The problem of estimating the Euler-Poincare' characteristic (Euler number for short) of a set in the 3d Euclidean space is considered, given that this set is observed in the points of a lattice. In this situation, which is typical in image analysis, the
Joachim Ohser   +2 more
doaj   +1 more source

Determination of an optimal treatment margin for intracranial tumours treated with radiotherapy at Groote Schuur Hospital

open access: yesSouth African Journal of Oncology, 2020
Background: Accurate delivery of radiotherapy is a paramount component of providing safe oncological care. Margins are applied when planning radiotherapy to account for subclinical tumour spread, physiological movement and setup error.
Andre Vos   +2 more
doaj   +1 more source

Modeling and Evaluation of the Systematic Errors for the Polarization-Sensitive Imaging Lidar Technique

open access: yesRemote Sensing, 2020
Polarization lidar plays a significant role in characterizing the properties of cirrus clouds, classifying aerosol types, retrieving aerosol microphysical properties, etc.
Zheng Kong   +5 more
doaj   +1 more source

Bryan’s Maximum Entropy Method—Diagnosis of a Flawed Argument and Its Remedy

open access: yesData, 2020
The Maximum Entropy Method (MEM) is a popular data analysis technique based on Bayesian inference, which has found various applications in the research literature.
Alexander Rothkopf
doaj   +1 more source

IMPROVED ESTIMATION OF FIBER LENGTH FROM 3-DIMENSIONAL IMAGES

open access: yesImage Analysis and Stereology, 2013
A new method is presented for estimating the specific fiber length from 3D images of macroscopically homogeneous fiber systems. The method is based on a discrete version of the Crofton formula, where local knowledge from 3x3x3-pixel configurations of the
Joachim Ohser   +4 more
doaj   +1 more source

Mapping the absolute magnetic field and evaluating the quadratic Zeeman-effect-induced systematic error in an atom interferometer gravimeter [PDF]

open access: yes, 2017
Precisely evaluating the systematic error induced by the quadratic Zeeman effect is important for developing atom interferometer gravimeters aiming at an accuracy in the regime ( ).
Qingqing Hu   +6 more
semanticscholar   +1 more source

The Concept of Geodetic Analyses of the Measurement Results Obtained by Hydrostatic Leveling

open access: yesGeosciences, 2019
The article discusses the issue of hydrostatic leveling. Its application is presented in structural health monitoring systems in order to determine vertical displacements of controlled points.
Waldemar Kamiński, Karolina Makowska
doaj   +1 more source

Experimental Comparison of Interference and Autocollimating Null Indicators

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2023
Introduction. At present, measurement of angles with high accuracy is an essential task in various scientific and industrial fields. The goniometer is one of the most widespread high-precision angle measuring devices, which can incorporate various types ...
B. Nyamweru, E. V. Shishalova
doaj   +1 more source

THE CLINICAL ASSESSMENT IN THE LEGAL FIELD: AN EMPIRICAL STUDY OF BIAS AND LIMITATIONS IN FORENSIC EXPERTISE

open access: yesFrontiers in Psychology, 2015
According to the literature, psychological assessment in forensic contexts is one of the most controversial application areas for clinical psychology. This paper presents a review of systematic judgment errors in the forensic field.
Antonio eIudici   +3 more
doaj   +1 more source

Combining experiments with systematic errors [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2021
We consider fits to two or more datasets for which results from the sa me experiment share a common systematic uncertainty in addition to their individ ual statistical errors. This is important in extracting the maximum information from a set of similar bu t different experiments (or the same experiment under different conditions) an alysing similar ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy