نتایج جستجو برای: systematic and gross errors

تعداد نتایج: 16882956  

Journal: :Acta Crystallographica Section A Foundations of Crystallography 1981

Background: Investment in science is vital for the development and well-being of societies. This study aims to assess the scientific productivity of countries by quantifying their publication of systematic reviews taking the gross national income per capita (GNIPC) into account. Methods: Medline and ISI Web of Science were searched for systematic reviews published between 1st January 2006 an...

Journal: :Journal of Navigation 1972

2003
Roger Barlow

Asymmetric systematic errors arise when there is a non-linear dependence of a result on a nuisance parameter. Their combination is traditionally done by adding positive and negative deviations separately in quadrature. There is no sound justification for this, and it is shown that indeed it is sometimes clearly inappropriate. Consistent techniques are given for this combination of errors, and a...

Journal: :Nuclear Instruments and Methods in Physics Research 2021

We consider fits to two or more datasets for which results from the same experiment share a common systematic uncertainty in addition their individual statistical errors. This is important extracting maximum information set of similar but different experiments (or under conditions) analysing datasets, as happens at LHC and other particle colliders. Two techniques can be used: one involves inver...

ژورنال: سلامت کار ایران 2012
جعفری, محمد جواد, حاجی حسینی, علیرضا, حلوانی, غلامحسین , قاسمی, مهدی , محرابی, یدالله,

  Background and Aims: Human being as the designer, programmer, and operator of systems, equipment and machineries plays a significant role in their safety at present time. In a sophisticated system, the operators’ behavior has the potential of errors that can influence the capability of the system. In the present study, human errors of 400 kV posts were identified, analyzed and their reduction...

Hajareh Ghaderzadeh Hamed Ghaffari Mahdieh Afkhami, Mohammad Haghparast Seyed Rabi Mahdavi

Introduction: The accuracy of the patient setup and tumor location are major factors that determine the efficacy of radiotherapy treatment planning. In the prostate radiotherapy, reproducibility of the prostate location for each treatment fraction is problematic owing to varying filling of the rectum and bladder. According to this, the aim of this study was to measure the inte...

The time-lag method, using a gas permeation experiment, is currently the most popular method for determining the membrane properties: diffusivity coefcient and permeability coefcient, and from which the solubility coefcient can be calculated. In this investigation, the impact of systematic, random (noise), resolution and extrapolation errors associated with gas permeatio...

Journal: :CoRR 2017
Xiaowei Zhang Xudong Shi Yu Sun Li Cheng

We consider the topic of multivariate regression on manifold-valued output, that is, for a multivariate observation, its output response lies on a manifold. Moreover, we propose a new regression model to deal with the presence of grossly corrupted manifold-valued responses, a bottleneck issue commonly encountered in practical scenarios. Our model first takes a correction step on the grossly cor...

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