Results 21 to 30 of about 20,195 (236)

Towards Automatic Real-Time Estimation of Observed Learner’s Attention Using Psychophysiological and Affective Signals: The Touch-Typing Study Case

IEEE Access, 2017
This paper presents an experimental study on the real-time estimation of observed learners' attention given the task of touch-typing. The aim is to examine whether the observed attention estimates gathered from human raters can be computationally modeled
Marko Meza, Janja Kosir, Gregor Strle, Andrej Kosir   +3 more
doaj   +1 more source

Do Mobile Phone Data Provide a Better Denominator in Crime Rates and Improve Spatiotemporal Predictions of Crime?

ISPRS International Journal of Geo-Information, 2021
This article assesses whether ambient population is a more suitable population-at-risk measure for crime types with mobile targets than residential population for the purpose of intelligence-led policing applications.
Anneleen Rummens, Thom Snaphaan, Nico Van de Weghe, Dirk Van den Poel, Lieven J. R. Pauwels, Wim Hardyns   +5 more
doaj   +1 more source

An HMM-based averaging approach for creating mean motion data from a full-body Motion Capture system to support the development of a biomechanical model

Current Directions in Biomedical Engineering, 2018
Motion capture systems or MoCap systems are used for game development and in the field of sports for the assessment and digitalization of human movement.
Kitzig Andreas, Demmer Julia, Bolten Tobias, Naroska Edwin, Stockmanns Gudrun, Viga Reinhard, Grabmaier Anton   +6 more
doaj   +1 more source

Inferring Human Activity Recognition with Ambient Sound on Wireless Sensor Nodes

Sensors, 2016
A wireless sensor network that consists of nodes with a sound sensor can be used to obtain context awareness in home environments. However, the limited processing power of wireless nodes offers a challenge when extracting features from the signal, and ...
Etto L. Salomons, Paul J. M. Havinga, Henk van Leeuwen   +2 more
doaj   +1 more source

Development of a retrospective process for analyzing results of a HMM based posture recognition system in a functionalized nursing bed

Current Directions in Biomedical Engineering, 2017
In the area of care in general but especially in the care of elderly, there is a great interest in deriving patient parameters preparation free. For this purpose, a load cell functionalized nursing bed has been developed at Niederrhein University of ...
Demmer Julia, Kitzig Andreas, Naroska Edwin   +2 more
doaj   +1 more source

Alternative light therapy with luminescent textiles

Current Directions in Biomedical Engineering, 2017
Current research shows, that light directly influences the course of the inner biological rhythm. Light synchronizes the biological clock by controlling the concentration of various hormones in the human body.
Lempa Evelyn, Kitzig Andreas, Naroska Edwin, Rabe Maike, Neukirch Benno, Graßmann Carsten   +5 more
doaj   +1 more source

Improvement of a multi-stage model for the modeling of a functionalized nursing bed as support for the sensor-assisted function-alization of furniture in the hospital and care sector

Current Directions in Biomedical Engineering, 2017
Development of preparation-free functionalized furniture based patient monitoring systems for use in the area of home- or stationary- care is often empirically driven.
Kitzig Andreas, Schröter Stefan, Naroska Edwin, Stockmanns Gudrun, Viga Reinhard, Grabmaier Anton   +5 more
doaj   +1 more source

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

Advanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky, Marcelo Sallese, Leander Kläber, Clemens Kuhn, Keming Du, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source