Results 71 to 80 of about 8,908 (189)

Model-Driven Channel Estimation for MIMO Monostatic Backscatter System With Deep Unfolding

IEEE Open Journal of the Communications Society
Monostatic backscatter has garnered significant interest due to its distinct benefits in low-cost passive sensing. Observing and sensing with backscatter necessitates determining the phase and amplitude of the backscatter channel to identify the state of
Yulin Zhou, Xiaoting Li, Xianmin Zhang, Xiaonan Hui, Yunfei Chen   +4 more
doaj   +1 more source

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

Transmit Power-Efficient Beamforming Design for Integrated Sensing and Backscatter Communication

IEEE Open Journal of the Communications Society
Ambient Internet of Things networks use low-cost, low-power backscatter tags in various applications, and sensing is necessary to introduce perceptive intelligence to the network.
Shayan Zargari, Diluka Galappaththige, Chintha Tellambura   +2 more
doaj   +1 more source

Reconfigurable Intelligent Surfaces for Wireless Communications: Principles, Challenges, and Opportunities

, 2020
Recently there has been a flurry of research on the use of reconfigurable intelligent surfaces (RIS) in wireless networks to create smart radio environments.
ElMossallamy, Mohamed A., Han, Zhu, Li, Geoffrey Ye, Seddik, Karim G., Song, Lingyang, Zhang, Hongliang   +5 more
core  

Synaptic Behavior in SnSe2 Field‐Effect Transistors Induced by Surface Oxide and Trap Dynamics

Advanced Electronic Materials, Volume 12, Issue 5, 9 March 2026.
Multilayer SnSe2 field‐effect transistors display gate‐tunable optoelectronic plasticity driven by interfacial trap states. Persistent photocurrent is reversibly tuned between short‐ and long‐term memory through gate bias and pulsed control. The devices emulate synaptic functions such as potentiation, modulation, and cumulative learning, establishing ...
Andrea Sessa, Sebastiano De Stefano, Ofelia Durante, Aniello Pelella, Martino Aldrigo, Catalin Parvulescu, Adrian Dinescu, Chia‐Nung Kuo, Chin Shan Lue, Tsotne Dadiani, Gianluca D'Olimpio, Enver Faella, Antonio Politano, Maurizio Passacantando, Antonio Di Bartolomeo   +14 more
wiley   +1 more source

Glacier‐Atmosphere Interactions and Feedbacks in High‐Mountain Regions ‐ A Review

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Mountain glaciers are among the natural systems most vulnerable to climate change. However, their interactions with the atmosphere are complex and not fully understood. These interactions can trigger rapid adjustments and climate feedbacks that either amplify or attenuate atmospheric signals, influencing both glacier response and large‐scale ...
T. Sauter, B. W. Brock, E. Collier, B. Goger, A. R. Groos, K. F. Haualand, R. Mott, L. Nicholson, R. Prinz, T. E. Shaw, I. Stiperski, A. Georgi, M. Haugeneder, A. Mandal, D. Reynolds, M. Saigger, J. E. Sicart, A. Voordendag   +17 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

Sum rate maximization in active RIS-assisted ambient backscatter communication system

Results in Engineering
This paper focuses on an active reconfigurable intelligent surface (RIS)-assisted ambient backscatter communication (AmBC) system. The explosive growth of the Internet of Things (IoT) has led to increasing demands for efficient communication, yet ...
Hongxia Zheng, Xingquan Li, Chunlong He, Chiya Zhang, Yong Wang, Guoqing Wang, Zhipeng Xiao, Jin Chen   +7 more
doaj   +1 more source

Polarization-Based Reconfigurable Tags for Robust Ambient Backscatter Communications

IEEE Open Journal of the Communications Society, 2020
Ambient backscatter communication is an emerging and promising low-energy technology for the Internet of Things. In such a system, a tag sends a binary message to a reader by backscattering a radio frequency signal generated by an ambient source. The tag
R. Fara, D.-T. Phan-Huy, A. Ourir, Y. Kokar, J.-C. Prevotet, M. Helard, M. Di Renzo, J. De Rosny   +7 more
doaj   +1 more source

Climate Change, Air Quality, and Pollen Allergies—State of the Art and Recommendations for Research and Public Health

Allergy, Volume 81, Issue 3, Page 663-683, March 2026.
ABSTRACT Allergies are one of the major health challenges of our time, associated with a high individual burden of disease and high costs for the healthcare system. Given their prevalence, allergies are also highly relevant from a public health perspective. The development of allergic diseases is multifactorial. In addition to individual factors (e.g.,
Jobst Augustin, Stefan Gilge, Heike Appel, Ute Dauert, Christina Endler, Ruth Heesen, Conny Höflich, Wilhelm Kuttler, Katharina Heinke Schlünzen, Wolfgang Straff, Barbora Werchan, Matthias Werchan, Torsten Zuberbier, Claudia Traidl‐Hoffmann   +13 more
wiley   +1 more source