Results 41 to 50 of about 520 (159)

A Contactless Respiratory Rate Estimation Method Using a Hermite Magnification Technique and Convolutional Neural Networks

Applied Sciences, 2020
The monitoring of respiratory rate is a relevant factor in medical applications and day-to-day activities. Contact sensors have been used mostly as a direct solution and they have shown their effectiveness, but with some disadvantages for example in ...
Jorge Brieva, Hiram Ponce, Ernesto Moya-Albor   +2 more
doaj   +1 more source

Efficient denoising approach based eulerian video magnification for colour and motion variations

, 2020
Digital video magnification is a computer-based microscope, which is useful to detect subtle changes to human eyes in recorded videos. This technology can be employed in several areas such as medical, biological, mechanical and physical applications ...
Al-allaq, Zaid Jabbar, Zaid Jabbar Al-allaq, Haider Ismael Shahadi, Hayder Jawad Albattat, Shahadi, Haider Ismael, Albattat, Hayder Jawad   +5 more
core   +1 more source

Aligning Real‐Time Recurrence Computational Fluid Dynamics Simulations with Plant Data for the Ruhrstahl–Heraeus Degassing Process of Steel

steel research international, EarlyView.
Uncertainties exist in computational fluid dynamics (CFD) modeling of complex metallurgical processes, even when partly validated by laboratory experiments. rCFD enables computationally efficient prediction of long‐term RH degassing and can be adapted to vary flow conditions.
Xiaomeng Zhang, Maria Thumfart, Roman Rössler, Stefan Pirker   +3 more
wiley   +1 more source

An induction heating system for in situ X‐ray diffraction imaging: design, simulation and application to dislocation dynamics in semiconductors

Journal of Synchrotron Radiation, EarlyView.
This work presents a compact induction heating system for time‐resolved in situ X‐ray diffraction imaging. The system enables contact‐free volumetric heating up to approximately 1600°C and provides flexible operation in different operating modes. Its performance is demonstrated through representative diffraction imaging experiments.We present a compact
Merve P. Kabukcuoglu, Nikolaos Sagias, Elias Hamann, Carsten Richter, Marcus Zuber, Kaspars Dadzis, Daniel Hänschke   +6 more
wiley   +1 more source

Heart Rate Variability Extraction From Videos Signals: ICA vs. EVM Comparison

IEEE Access, 2017
Medical researchers have always been interested in heart rate (HR) and heart rate variability (HRV) analysis. However, nowadays, investigators from a variety of other fields are also probing the subject.
Karim Alghoul, Saeed Alharthi, Hussein Al Osman, Abdulmotaleb El Saddik   +3 more
doaj   +1 more source

Reduced order modelling of air‐puff test for corneal material characterisation

Journal of Microscopy, EarlyView.
Abstract Models of the fluid–structure interaction (FSI) model for the air‐puff test were analysed. Using Abaqus, the air‐puff test is applied to eyes with varying biomechanical parameters, such as material properties, corneal thickness, and radius.
Osama M. Maklad, Muting Hao
wiley   +1 more source

MOESM5 of Extracting physiological information in experimental biology via Eulerian video magnification

, 2019
Additional file 5. Heartbeat magnification in colored animal using Eulerian video motion magnification. Eulerian Video Magnified (motion) recording of one brown wild type axolotl axolotl. Dual trace video.
Catherine Williams (8122037), Peter Wrege (6270689), Michael Pedersen (227448), Jonathan Butcher (136489), Daniela Hedwig (3107658), Kathryn Perrin (8122034), Selina Gonzales (8122031), Mads Bertelsen (3482450), Henrik Lauridsen (227410)   +8 more
core   +1 more source

A Method for Directly Observing Mechanical Oscillations in Photonic Structures Based on Porous Silicon Nanostructures

Micro
Due to their unique properties, porous silicon nanostructures have garnered much attention in photonics. For example, these structures can exhibit photoluminescence and are highly efficient in trapping light, making them ideal for applications such as ...
Miller Toledo Solano, Hector H. Cerecedo-Nuñez, Martha Alicia Palomino Ovando, Jocelyn Faubert, Khashayar Misaghian, J. Eduardo Lugo   +5 more
doaj   +1 more source

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

Advanced Materials, Volume 38, Issue 25, 4 May 2026.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz, Elangovan Hemaprabha, Rajesh Mandal, Pravin Kavle, Jamil Tanus, Maya Barzilay, Ching‐Che Lin, David Spirito, Semën Gorfman, Bo Wang, Ignacio J. Villar‐García, Neus Domingo, Long‐Qing Chen, Lane W. Martin, Yachin Ivry   +14 more
wiley   +1 more source

Heat stress relief by tidally driven cold‐water bores on a coral reef atoll

Limnology and Oceanography, Volume 71, Issue 4, April 2026.
Abstract Understanding how physical transport mechanisms influence coral reef temperature dynamics is crucial for effective management. Typically, sea surface temperature (SST) is used to estimate coral heat stress, yet subsurface physical processes can significantly influence reef temperature dynamics and are imperative to consider in predictive ...
Kelly Boden‐Hawes, Nicole L. Jones, Matthew D. Rayson, James P. Gilmour, Taryn Foster   +4 more
wiley   +1 more source