Results 21 to 30 of about 198,005 (333)

A Smartphone-Based Biosensor for Non-Invasive Monitoring of Total Hemoglobin Concentration in Humans with High Accuracy

Biosensors, 2022
In this paper, we propose a smartphone-based biosensor for detecting human total hemoglobin concentration in vivo with high accuracy. Compared to the existing biosensors used to measure hemoglobin concentration, the smartphone-based sensor utilizes the ...
Zhipeng Fan, Yong Zhou, Haoyu Zhai, Qi Wang, Honghui He   +4 more
doaj   +1 more source

Multi-wavelength wireless-PON [PDF]

2010 12th International Conference on Transparent Optical Networks, 2010
An innovative architectural platform demonstrating transparent transmission of frequency division multiplexed (FDM) WiMAX channels over multi-wavelength splitter-PONs enriched by overlapping cell functionalities has been investigated to potentially double the spectral efficiency and provide resilience.
Milos Milosavljevic, Ali Gliwan, Pandelis Kourtessis, John M. Senior   +3 more
openaire   +1 more source

Multi-wavelength analysis of the Galactic supernova remnant MSH 11-61A [PDF]

, 2015
Due to its centrally bright X-ray morphology and limb brightened radio profile, MSH 11-61A (G290.1-0.8) is classified as a mixed morphology supernova remnant (SNR).
Auchettl, Katie, Castro, Daniel, Foster, Adam R., Slane, Patrick, Smith, Randall K.   +4 more
core   +2 more sources

Multi-wavelength observations of Proxima Centauri [PDF]

, 2011
We report simultaneous observations of the nearby flare star Proxima Centauri with VLT/UVES and XMM-Newton over three nights in March 2009. Our optical and X-ray observations cover the star's quiescent state, as well as its flaring activity and allow us ...
A. Reiners, Allred, Audard, B. Fuhrmeister, Ballester, Berger, Brinkman, Browning, C. Liefke, Chabrier, Cincunegui, Cincunegui, Crespo-Chacón, Dorman, Frogel, Fuhrmeister, Fuhrmeister, Fuhrmeister, Fuhrmeister, Gabriel, Grevesse, Gunn, Güdel, Güdel, Haisch, Haisch, Haisch, Haisch, Haisch, Haisch, Hauschildt, Hawley, Hilton, J. H. M. M. Schmitt, J.-U. Ness, K. Poppenhaeger, Kowalski, N. Rudolf, Ness, Neupert, Osten, Osten, Parker, Piskunov, Pradhan, Reale, Reale, Reale, Reid, Reiners, Reiners, Reiners, Reiners, Reiners, Robrade, Robrade, S. Lalitha, Serio, Short, Shulyak, Stelzer, van Leeuwen, Voges, Wargelin, West, Švestka   +65 more
core   +1 more source

Research on Multiple Spectral Ranges with Deep Learning for SpO₂ Measurement

Sensors, 2022
Oxyhemoglobin saturation by pulse oximetry (SpO2) has always played an important role in the diagnosis of symptoms. Considering that the traditional SpO2 measurement has a certain error due to the number of wavelengths and the algorithm and the wider ...
Chih-Hsiung Shen, Wei-Lun Chen, Jung-Jie Wu   +2 more
doaj   +1 more source

Multi-wavelength selective crossbar switch

Optics Express, 2019
Here we demonstrate an 8x4 multi-wavelength selective ring resonator based crossbar switch matrix implemented in a 220-nm silicon photonics foundry for interconnecting electronic packet switches in scalable data centers. This switch design can dynamically assign up to two wavelength channels for any port-port connection, providing almost full ...
Akhilesh S. P. Khope, Mitra Saeidi, Raymond Yu, Xinru Wu, Andrew M. Netherton, Yuan Liu, Zeyu Zhang, Yujie Xia, Garey Fleeman, Alexander Spott, Sergio Pinna, Clint Schow, Roger Helkey, Luke Theogarajan, Rod C. Alferness, Adel A. M. Saleh, John E. Bowers   +16 more
openaire   +2 more sources

The WFCAM Multi-wavelength Variable Star Catalog [PDF]

, 2014
Stellar variability in the near-infrared (NIR) remains largely unexplored. The exploitation of public science archives with data-mining methods offers a perspective for the time-domain exploration of the NIR sky.
Angeloni, R., Catelan, M., Cross, N. J. G., De Medeiros, J. R., Dékány, I., Leão, I. C., Lopes, C. E. Ferreira   +6 more
core   +5 more sources

Wearable Wrist Photoplethysmography for Optimal Monitoring of Vital Signs: A Unified Perspective on Pulse Waveforms

IEEE Photonics Journal, 2022
To track vital signs on the wrist, a wearable system, named WrisTee, has been developed for remote health monitoring. Using three optical sensors with four light sources, WrisTee allows users to measure 12 photoplethysmogram (PPG) signals at three ...
Nguyen Mai Hoang Long, Wan-Young Chung
doaj   +1 more source

ACNN-BiLSTM: A Deep Learning Approach for Continuous Noninvasive Blood Pressure Measurement Using Multi-Wavelength PPG Fusion. [PDF]

Bioengineering (Basel)
Cui M, Dong X, Zhuang Y, Li S, Yin S, Chen Z, Liang Y.   +6 more
europepmc   +3 more sources

A multi-wavelength pipeline for pulsar searches [PDF]

, 2019
Pulsar studies in the recent years have shown, more than others, to have benefited from a multi-wavelength approach. The INAF - Astronomical Observatory in Cagliari (INAF-OAC) is a growing facility with a young group devoted to pulsar and fast transients
Atzeni, Giuseppe, Bachetti, Matteo, Egron, Elise, Iacolina, Maria Noemi, Loru, Sara, Pellizzoni, Alberto, Pilia, Maura, Poddighe, Antonio, Trois, Alessio, Vacca, Valentina   +9 more
core   +2 more sources