Results 11 to 20 of about 3,050 (184)

A Real-Time Digital Twin for Human Cardiovascular Applications. [PDF]

Int J Numer Method Biomed Eng
A real‐time digital twin was developed using the reduced‐order unscented Kalman filter (ROUKF) to estimate left ventricular contractility from synthetic and in vivo left ventricular pressure measurement data. The results were promising, with identifiable parameter estimates and a stable mathematical model, highlighting the potential for real‐time ...
Snijders SC, Rutten MCM, Sels JEM, Tonino WAL, Huberts W.   +4 more
europepmc   +2 more sources

Assessing the dynamics and severity of seawater intrusion in a vulnerable coastal aquifer: an integrated hydrogeochemical facies and ionic ratios approach in Paravur, India [PDF]

Estuarine Management and Technologies
Coastal aquifer monitoring commonly assumes that seawater intrusion decreases progressively with increasing distance from the shoreline. However, this assumption may not hold in hydrogeologically complex coastal settings. This study investigated seawater
Mophin Kani Kani, Gowry N. Biju, Varsha VS   +2 more
doaj   +3 more sources

Processing and filtering analysis of navigation data of underground strapdown inertial navigation system

Gong-kuang zidonghua, 2014
In view of problems of large errors and low accuracy of positioning technology in coal mine, the strapdown inertial navigation system was introduced into coal mine personnel and equipment for precise positioning and navigation.
LIU Xiaowen, WANG Cun, WANG Long
doaj   +1 more source

The evaluation of the psychometric properties and the factor structure of the slovak version of the questionnaire FFMQ (five-facet mindfulness questionnaire) [PDF]

Psychology and its Contexts, 2014
Problem: The aim of the present study was to adapt the English self-report questionnaire Five-Facet Mindfulness Questionnaure (FFMQ - Baer et al., 2006) to Slovak conditions as well as to evaluate its psychometric properties and to investigate its 5 ...
Veronika Látalová, Ľubor Pilárik
doaj  

Adaptive IMM-UKF for Airborne Tracking

Aerospace, 2023
In this paper, we propose a nonlinear tracking solution for maneuvering aerial targets based on an adaptive interacting multiple model (IMM) framework and unscented Kalman filters (UKFs), termed as AIMM-UKF. The purpose is to obtain more accurate estimates, better consistency of the tracker, and more robust prediction during sensor outages.
Arroyo Cebeira, Álvaro, Asensio Vicente, Mariano   +1 more
openaire   +3 more sources

A Code for Unscented Kalman Filtering on Manifolds (UKF-M) [PDF]

2020 IEEE International Conference on Robotics and Automation (ICRA), 2020
The present paper introduces a novel methodology for Unscented Kalman Filtering (UKF) on manifolds that extends previous work by the authors on UKF on Lie groups. Beyond filtering performance, the main interests of the approach are its versatility, as the method applies to numerous state estimation problems, and its simplicity of implementation for ...
Martin Brossard, Axel Barrau, Silvère Bonnabel   +2 more
openaire   +4 more sources

Short-term Prediction Method for Passenger Density in Urban Rail Transit Based on Non-linear Kalman Filter

Chengshi guidao jiaotong yanjiu
Objective In order to cope with massive passenger flow incidents, it is necessary to identify accurately the spatial and temporal distribution state and the evolution law of massive passenger flow in urban rail transit, making short-term prediction of ...
WANG Hefei, TENG Jing, YE Liang, CHEN Yuyi   +3 more
doaj   +1 more source

Short selling ETFs and market performance

Journal of Financial Research, EarlyView.
Abstract We examine short selling activity in leveraged Exchange‐Traded Funds (ETFs) and its impact on underlying index performance. Using a novel measure of ETF short exposure, which includes long positions in inverse leveraged ETFs, we document that high short exposure is associated with positive performance in the subsequent period.
Doina C. Chichernea, Alex Petkevich, Kainan Wang   +2 more
wiley   +1 more source

Autonomous navigation and collaborative control of coal mine roadway cleaning robot

Gong-kuang zidonghua
To address localization degradation of coal mine roadway cleaning robots in long, straight roadways where satellite signals are unavailable, difficulties in multi-process coordination, and reliance on manual intervention for attachment replacement, a ...
Li Wangnian, Zhang Youzhen, Lu Qianhai, Zhang Ning, Shao Junjie, Li Xutao, Shi Lu, Jia Qian   +7 more
doaj   +1 more source

Nursing Students' Reports of Patient Safety Incidents and Reasons During Clinical Placements: A Secondary Analysis of the International Data

Nursing &Health Sciences, Volume 28, Issue 4, December 2026.
ABSTRACT Clinical placements expose nursing students to patient safety incidents and provide important opportunities for learning about safe care. This study explored how nursing students in four countries recognized and interpreted patient safety incidents encountered or witnessed during clinical practice, including perceived contributing factors.
Dominika Kohanová, Elena Gurková, Alvisa Palese, Daniela Bartoníčková, Lenka Mazalová, Aysel Özsaban, Aysun Bayram, Seher Basaran‐Acil, Öznur Ispir Demir, Chiara Moreal, Stefania Chiappinotto   +10 more
wiley   +1 more source