Results 31 to 40 of about 300,325 (331)

Artificial arterial blood pressure artifact models and an evaluation of a robust blood pressure and heart rate estimator

open access: yesBioMedical Engineering OnLine, 2009
Background Within the intensive care unit (ICU), arterial blood pressure (ABP) is typically recorded at different (and sometimes uneven) sampling frequencies, and from different sensors, and is often corrupted by different artifacts and noise which are ...
Mark Roger G, Li Qiao, Clifford Gari D
doaj   +1 more source

New Classification of Intraoral Phosphor Plate Artifacts Based on Literature Review

open access: yesEuropean Annals of Dental Sciences, 2022
AIM: Artifacts (error) encountered in phosphor plates (PSP) used in intraoral digital imaging were evaluated under a new classification. METHODS: In our study, when obtaining images with intraoral phosphor plates, artifacts before, during, after the ...
Bengi Öztaş   +2 more
doaj   +1 more source

On Artifacts in Nonlinear Dynamics [PDF]

open access: yes, 2017
Nonlinear oscillations are of permanent interest in the field of dynamics of mechanical and mechatronical systems. There exist several well-known semi-analytical methods like Harmonic Balance, perturbation analysis or multiple scales for such problems ...
Lentz, Lukas, Wagner, Utz von
core   +1 more source

Stripe formation in doped Hubbard ladders [PDF]

open access: yes, 2004
We investigate the formation of stripes in $7\chunks \times 6$ Hubbard ladders with $4\chunks$ holes doped away from half filling using the density-matrix renormalization group (DMRG) method.
Fehske, H.   +3 more
core   +1 more source

A new conceptual approach for systematic error correction in CNC machine tools minimizing worst case prediction error [PDF]

open access: yes, 2012
A new artifact-based method to identify the systematic errors in multi-axis CNC machine tools minimizing the worst case prediction error is presented. The closed loop volumetric error is identified by simultaneously moving the axes of the machine tool ...
AT Kilgore   +13 more
core   +1 more source

Eye movements may cause motor contagion effects [PDF]

open access: yes, 2016
When a person executes a movement, the movement is more errorful while observing another person’s actions that are incongruent rather than congruent with the executed action. This effect is known as “motor contagion”.
Constable, Merryn   +5 more
core   +1 more source

The data-processing multiverse of event-related potentials (ERPs): A roadmap for the optimization and standardization of ERP processing and reduction pipelines

open access: yesNeuroImage, 2021
In studies of event-related brain potentials (ERPs), numerous decisions about data processing are required to extract ERP scores from continuous data. Unfortunately, the systematic impact of these choices on the data quality and psychometric reliability ...
Peter E. Clayson   +3 more
doaj   +1 more source

Evaluation of the Metrological Performance of a Handheld 3D Laser Scanner Using a Pseudo-3D Ball-Lattice Artifact

open access: yesSensors, 2021
This paper proposes the use of a pseudo-3D ball-lattice artifact to characterize a handheld laser scanner from a metrological standpoint. The artifact allows the computation of local and global errors in measurement by using the reference-frame ...
Rémi Bonin   +2 more
doaj   +1 more source

Metal artifacts reduction in kV-CT images with polymetallic dentures and complex metals based on MV-CBCT images in radiotherapy

open access: yesScientific Reports, 2023
This paper proposes a metal artifact reduction method of using MV-CBCT images to correct metal artifacts in kV-CT images, especially for the complex metal artifacts caused by multi-metal interaction of patients with head and neck tumors.
Xiaochen Ni   +12 more
doaj   +1 more source

Influence of artifact removal on rare species recovery in natural complex communities using high-throughput sequencing. [PDF]

open access: yesPLoS ONE, 2014
Large-scale high-throughput sequencing techniques are rapidly becoming popular methods to profile complex communities and have generated deep insights into community biodiversity.
Aibin Zhan   +3 more
doaj   +1 more source

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