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20 results for “positional accuracy”
Analysing the data-driven approach of dynamically estimating positioning accuracy (data)
<p>The train/validation/test sets used in the study <strong>"<em>Analysing the data-driven approach of dynamically estimating positioning accuracy</em>"</strong>.</p> <p>Preprint: <a href="https://arxiv.org/abs/2011.10478">https://arxiv.org/abs/2011.10478</a></p> <p>Published paper: <a href="https://ieeexplore.ieee.org/document/9500369">https://ieeexplore.ieee.org/document/9500369</a></p> <p>-----------------------------------------------------------------------------------------------------------------------------------------------------------------</p> <p>The full dataset used in this study, is the public dataset <em>lorawan_dataset_antwerp.csv </em> (and its related file <em>lorawan_antwerp_gateway_locations.json)</em> which can be access here:</p> <pre><a href="https://zenodo.org/record/3904158#.X4_h7y8RpQI">https://zenodo.org/record/3904158#.X4_h7y8RpQI</a></pre> <p>The above link is related to the following publication, in which the original dataset was published:</p> <p><a href="http://www.mdpi.com/2306-5729/3/2/13">http://www.mdpi.com/2306-5729/3/2/13</a></p> <p>The credit for the creation of the dataset goes to Aernouts, Michiel; Berkvens, Rafael; Van Vlaenderen, Koen; and Weyn, Maarten.</p>
Accuracy or positions and parallaxes
<p>Two figures from a report soon to be placed on arXiv: </p> <p><strong>Astrometric Accuracy of Positions</strong></p> <p>Erik Høg, Niels Bohr Institute, Copenhagen University</p> <p><span>Figure 1. <span>The </span></span><span>accuracy of observed star positions for 2000 years, marked with red color for observations from the ground and with blue from space. The accuracy was greatly improved shortly before 1600 AD by the Landgrave in Kassel and by Tycho Brahe in Denmark. The following 400 years brought even larger but much more gradual improvement before space techniques with the European Hipparcos satellite started a new era of astrometry. Catalogs before 1900 are plotted at the mean epoch of observation, but after 1900 at the time of publication. – The 17 million brightest stars in the sky have accuracies of 0.014 milliarcsec </span></p> <p>Figure 1b. Astrometric accuracy, update of Fig.5 from 1995 to our 2024 knowledge, including both parallaxes and positions. Gaia produces millions of accurate proper motions and parallaxes in addition to the positions shown in this diagram, see Gaia DR3 (2022). The important astrometry from space obtained with the HST should also be mentioned, and the very accurate astrometry by interferometry with radio telescopes.</p>
Data set of "Effect of Proximity, Burden, and Position on the Power Quality Accuracy Performance of Rogowski Coils"
<p>The uploaded data set contains all the measurements collected during the research that led to the publication of " "Effect of Proximity, Burden, and Position on the Power Quality Accuracy Performance of Rogowski Coils"</p>
A Precision and Accuracy Study of the Codman Valve Position Verification (VPV) System.
ClinicalTrials.gov study NCT00196196. IPD Sharing: Not stated. Countries: 1. Publications: 4.
Comparative analysis of positioning accuracy of Garmin Forerunner wearable GNSS receivers in dynamic testing
<p>Required dataset for the manuscript.</p>
Data from: How a GNSS receiver is held may affect static horizontal position accuracy
The static horizontal position accuracy of a mapping-grade GNSS receiver was tested in two forest types over two seasons, and subsequently was tested in one forest type against open sky conditions in the winter season. The main objective was to determine whether the holding position during data collection would result in significantly different static horizontal position accuracy. Additionally, we wanted to determine whether the time of year (season), forest type, or environmental variables had an influence on accuracy. In general, the F4Devices Flint GNSS receiver was found to have mean static horizontal position accuracy levels within the ranges typically expected for this general type of receiver (3 to 5 m) when differential correction was not employed. When used under forest cover, in some cases the GNSS receiver provided a higher level of static horizontal position accuracy when held vertically, as opposed to held at an angle or horizontally (the more natural positions), perhaps due to the orientation of the antenna within the receiver, or in part due to multipath or the inability to use certain satellite signals. Therefore, due to the fact that numerous variables may affect static horizontal position accuracy, we only conclude that there is weak to moderate evidence that the results of holding position are significant. Statistical test results also suggest that the season of data collection had no significant effect on static horizontal position accuracy, and results suggest that atmospheric variables had weak correlation with horizontal position accuracy. Forest type was found to have a significant effect on static horizontal position accuracy in one aspect of one test, yet otherwise there was little evidence that forest type affected horizontal position accuracy. Since the holding position was found in some cases to be significant with regard to the static horizontal position accuracy of positions collected in forests, it may be beneficial to have an understanding of antenna positioning within the receiver to achieve the greatest accuracy during data collection.
Reliability and Diagnostic Accuracy of an Alternate Lachman's Test Performed in a Prone Position
ClinicalTrials.gov study NCT01301014. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Data from: Performance and accuracy of lightweight and low-cost GPS data loggers according to antenna positions, fix intervals, habitats and animal movements
Open the record for dataset details and reuse information.
Data from: How a GNSS receiver is held may affect static horizontal position accuracy
Open the record for dataset details and reuse information.
The Accuracy of the Performance and Placement Test for Predicting Supraglottic Airway Device (SAD) Position in the Hypopharynx as Confirmed With Video Laryngoscopy
ClinicalTrials.gov study NCT03643029. IPD Sharing: YES. Countries: 0. Publications: 2.
The loop position of shRNAs and pre-miRNAs is critical for the accuracy of Dicer processing in vivo
GEO Series GSE41292. Mus musculus; Homo sapiens. 20 samples. Type: Expression profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing.
A Retrospective Cohort to Access the Accuracy of Agitated Saline Bubble–Enhanced Ultrasound to Visualize Appropriated Position of Hemodialysis Catheter: Does Catheter Venous Site Matter?
<p><strong>Background:</strong> The non-tunnelled hemodialysis catheter (HDC) is commonly used to start renal replacement therapy in hospitalised patients, especially in acute kidney injury. Malposition of HDC is associated with delayed therapy and inadequate dialysis. Agitated saline bubble-enhanced ultrasound (SBUS) has become a new method to visualise catheter position at the same time of insertion. Our aim is to analyse the concordance of SBUS and chest radiography (CXR) to assess HDC position, according to the site of insertion: right vs left internal jugular vein (IJV).</p> <p><strong>Methods</strong>: From December 2019 to May 2021, we evaluated 152 hospitalized patients submitted to IJV catheter insertion. We evaluated the time from puncture to CXR result, procedure-related complications, blood flow and the accuracy of SBUS when compared to CXR to detect HDC position adequacy at both sites.</p> <p><strong>Results: </strong>The median [IQR] time between catheter insertion and CXR result was 191 [93;288] minutes, no difference between puncture sites. Complications after catheter insertion were mostly arterial puncture (2% overall), similar incidence between sites. The incidence of inadequate blood flow was higher at the left IJV than at the right IJV. For HDC at the right IJV, there was high concordance between position-adequacy assessment by SBUS and CXR ( of Gwet = 0.95, CI: 0.915; 0.992), 95.6% accuracy. For HDC at the left IJV the concordance was low ( of Gwet 0.37, IC: -0.21; 0,94), as was accuracy (64.3%).</p> <p><strong>Conclusion:</strong> Compared with chest radiography, agitated saline bubble-enhanced ultrasound is a suitable method to check catheter placement when right internal jugular vein is used, but not left for internal jugular vein.</p>
Fully Versus Partially Guided Implants Placement: Measurement of Accuracy of Implant Position and Passivity of Superstructures.
ClinicalTrials.gov study NCT07174791. IPD Sharing: NO. Countries: 1. Publications: 0.
Assessing the Diagnostic Accuracy of Corrected Flow Time (FTc) and Pleth Variability Index (PVI) as Predictors of Fluid Responsiveness in Patients in the Prone Position Using the Jackson Table
ClinicalTrials.gov study NCT02826889. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Temporomandibular Joint (TMJ) Positioning Accuracy and Efficiency Using a Dental Compass.
ClinicalTrials.gov study NCT06619574. IPD Sharing: YES. Countries: 1. Publications: 0.
Accuracy of Ultrasonography in Confirming Correct Positioning of Nasogastric Tube in the Intensive Care Setting
ClinicalTrials.gov study NCT06693219. IPD Sharing: NO. Countries: 1. Publications: 0.
Evaluation of The Accuracy of CAD-CAM Custom Made Titanium Miniplates In Positioning of the Genial Segment in Computer Guided Genioplasty
ClinicalTrials.gov study NCT03647865. IPD Sharing: NO. Countries: 1. Publications: 0.
Accuracy of Dental Implant Position Robotic Assistance, Dynamic Navigation, or Static Guide?
ClinicalTrials.gov study NCT05892406. IPD Sharing: NO. Countries: 1. Publications: 0.
Accuracy of Digital Three-Dimensional Root Position Prediction Via Digitized Models
ClinicalTrials.gov study NCT03552640. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Accuracy of 3DPrinted Windowed Bracket- Positioning Guide Compared To Thermoformed Indirect Bonding Tray
ClinicalTrials.gov study NCT03585881. IPD Sharing: Not stated. Countries: 0. Publications: 0.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.