Results 51 to 60 of about 7,483 (129)

Wearable and Implantable Devices for Continuous Monitoring of Muscle Physiological Activity: A Review

Advanced Science, Volume 13, Issue 15, 13 March 2026.
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao, Ata Golparvar, Mohammad Javad Bathaei, Filipe Arroyo Cardoso, Clementine M. Boutry   +4 more
wiley   +1 more source

The Evolution of a Polar Cap Patch Into a Blob in the Nightside Ionosphere: Direct Observations of Multiple Blob Formation Mechanisms Acting Simultaneously on the Same Plasma

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract A polar cap patch was observed to exit the polar cap to become a blob as it entered the auroral oval on the nightside of the Earth under moderately quiet geomagnetic conditions (Kp = 3−). Auroral particle precipitation led to an increase in the electron density of the blob.
S. J. Maguire, A. G. Wood, D. R. Themens, E. M. Henley, S. E. Milan, Y. Soobiah, K. Oksavik, W. J. Miloch, J. C. Coxon, M. G. Johnsen   +9 more
wiley   +1 more source

Intra-Symbol Differential Amplitude Shift Keying-Aided Blind Detector for Ambient Backscatter Communication Systems

IEEE Open Journal of the Communications Society
Ambient backscatter communications (AmBC) are a promising technology for addressing the energy consumption challenge in wireless communications through the reflection or absorption of surrounding radio frequency (RF) signals.
Shuaijun Ma, Peng Wei, Sa Xiao, Jianquan Wang, Wanbin Tang, Wei Xiang   +5 more
doaj   +1 more source

Impacts of Transport Uncertainty on CO2 Over North America: Insights From Assessments of Two Global Models With Aircraft and Tower Measurements

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 3, 16 February 2026.
Abstract Accurate representation of CO2 transport is important for reliable flux inversions with global inversion systems. Previous studies have revealed systematic discrepancies between two widely used global transport models, GEOS‐Chem and TM5, in simulated CO2 distributions at mid‐latitudes.
Li Zhang, Kenneth J. Davis, Andrew E. Schuh, Andrew R. Jacobson   +3 more
wiley   +1 more source

Noncoherent Frequency-Shift Keying for Ambient Backscatter Over OFDM Signals

IEEE Open Journal of the Communications Society
In this paper, we investigate frequency shift keying (FSK) over ambient orthogonal frequency division multiplexed (OFDM) signals. By cycling through a sequence of antenna loads providing different phase shifts at the tag, we are able to unidirectionally ...
Mohamed A. ElMossallamy, Miao Pan, Riku Jantti, Karim G. Seddik, Geoffrey Ye Li, Zhu Han   +5 more
doaj   +1 more source

Directional Light Scattering In Mie‐Resonant Si Particles With Ultra‐Thin Au Shells

Advanced Optical Materials, Volume 14, Issue 3, 19 January 2026.
Si@Au core‐shell particles have been produced to study their ability to directionally scatter light. We found that the heavily reported particulate shells do not overlap the electric and magnetic dipoles well, where continuous shells have better overlap. Experimental analyses, including nanomaterial characterization, EELS and single‐particle dark‐field
Emmanuel O. Idowu, Lucien Roach, Kevin O’ Connor, Jonathan G. C. Veinot, Sabrina Lacomme, Julien Proust, Jérôme Plain, Xiaoyan Li, Mathieu Kociak, Alexandre Baron, Virginie Ponsinet, Peter Wiecha, Glenna L. Drisko   +12 more
wiley   +1 more source

Environmental and Ecological Monitoring with Biodegradable Technologies

Advanced Science, Volume 13, Issue 4, 19 January 2026.
This review examines the development and application of wireless biodegradable sensors for environmental monitoring. It explores (bio)degradable materials, their degradation mechanisms in various environments, and non‐toxic fabrication techniques. Additionally, it addresses scalable production and sustainable powering solutions, emphasizing the high ...
Mohammad Javad Bathaei, Yaren Bathaei, Zhengwei Liao, Maryam Yazdanmehr, Sarab S. Sethi, Denys Nikolayev, Filipe Arroyo Cardoso, Clementine M. Boutry   +7 more
wiley   +1 more source

Toward Intelligent and Sustainable IoT: A DRL Approach for Backscatter-Based Communication Under QoS Constraints

IEEE Open Journal of the Communications Society
With the rapid proliferation of vehicular communications and the need to support intelligent Internet-of-Things (IoT) devices in dynamic transportation environments, enhancing the functionality of low-power sensors is essential to realize the vision of ...
Hafiz Muhammad Ali Zeeshan, Syed Asad Ullah, Muhammad Sohaib J. Solaija, Muhammad Ali Jamshed, Mohammad Mahdi Mojahedian, Haejoon Jung, Syed Ali Hassan   +6 more
doaj   +1 more source

Average BLER Analysis of Ambient Backscatter RSMA Systems for URLLC Short-Packet Communications [PDF]

Radioengineering
Rate-splitting multiple access (RSMA) has emerged as a promising approach for ultra-reliable and low-latency communications (URLLC), addressing stringent delay and reliability requirements in next-generation networks.
A.-T. Pham, S.-Q. Nguyen, P.-N. Le, H.-T. Le, M.-T. Dang, T.-M. Hoang   +5 more
doaj  

Outage Performance of RIS-Assisted AmBC-NOMA Cooperative V2I Communications

IEEE Open Journal of the Communications Society
Vehicle-to-infrastructure (V2I) communication facilitates seamless interaction between vehicles and the surrounding infrastructure. Recently, there has been a notable surge in research interest in ambient backscatter communications (AmBC), primarily due ...
Ahmed Samir, Ahmed S. Ibrahim, Mahmoud H. Ismail, Basem M. ElHalawany, Mohamed Elsayed   +4 more
doaj   +1 more source