Results 51 to 60 of about 690,716 (286)

3D‐Printed Hygroscopic Polymer Networks for High‐Humidity Triboelectric Nanogenerators to Wirelessly Power Implantable Electronic Devices‐ A Conceptual Pathway

Advanced Functional Materials, EarlyView.
This work develops 3D‐printable tribopolymer networks that can enhance triboelectric performance under high humidity environments. Polar hydrophilic functional groups and incorporation of zwitterionic monomers promote bound‐water–dominated interfacial polarization thereby increasing electrical outputs.
Linguangze Zhuo, Jiawang Zeng, Qian Chen, Valentin A. Bobrin, Deepak Mishra, Anthony Chun Yin Yuen, Yixia Zhang, Cyrille Boyer, Jin Zhang   +8 more
wiley   +1 more source

Channel-Aware Multichannel Random Access for Energy-Limited Sensors and MTC Devices

IEEE Access, 2018
In machine-type communications (MTC) or wireless sensor networks (WSNs), since MTC devices or sensors have limited supply of energy, energy efficient transmission schemes are important.
Jinho Choi
doaj   +1 more source

Joint Domain Based Massive Access for Small Packets Traffic of Uplink Wireless Channel

, 2017
The fifth generation (5G) communication scenarios such as the cellular network and the emerging machine type communications will produce massive small packets.
Song, Qiang, Wei, Guo, Xie, Ronggui, Yin, Huarui   +3 more
core   +1 more source

Congestion Control for Machine-Type Communications in LTE-A Networks [PDF]

, 2016
Collecting data from a tremendous amount of Internet-of-Things (IoT) devices for next generation networks is a big challenge. A large number of devices may lead to severe congestion in Radio Access Network (RAN) and Core Network (CN).
Chang, Chia-Wei, Chen, Jyh-Cheng, Lin, Yi-Hao, Ren, Yi   +3 more
core   +1 more source

Small Extracellular Vesicles from Neural Cells: Physiological and Pathological Roles, and Potential in Neurodegenerative Therapy

Advanced Healthcare Materials, EarlyView.
Neural cell–derived small extracellular vesicles (sEVs) are emerging as pivotal mediators in neurodegenerative diseases, exerting both pathogenic and therapeutic functions. This review synthesizes current evidence on how sEVs from distinct neural cell types regulate neurodegeneration, neuroprotection, biomarker discovery, and targeted drug delivery ...
Muhammad Waqas Salim, Wei Zhang, Lyndsey Collins‐Praino, Yuling Wang, Andrew Care   +4 more
wiley   +1 more source

Performance Analysis of Millimeter-Wave Multi-hop Machine-to-Machine Networks Based on Hop Distance Statistics

Sensors, 2018
As an intrinsic part of the Internet of Things (IoT) ecosystem, machine-to-machine (M2M) communications are expected to provide ubiquitous connectivity between machines.
Haejoon Jung, In-Ho Lee
doaj   +1 more source

Zero-Outage Cellular Downlink with Fixed-Rate D2D Underlay

, 2014
Two of the emerging trends in wireless cellular systems are Device-to-Device (D2D) and Machine-to-Machine (M2M) communications. D2D enables efficient reuse of the licensed spectrum to support localized transmissions, while M2M connections are often ...
Popovski, Petar, Pratas, Nuno K.
core   +1 more source

System architecture and deployment scenarios for SESAME: small cEllS coordinAtion for Multi-tenancy and Edge services [PDF]

, 2016
The surge of the Internet traffic with exabytes of data flowing over operators’ mobile networks has created the need to rethink the paradigms behind the design of the mobile network architecture.
Albanese, Antonino, Fajardo, Jose Oscar, Giannoulakis, Ioannis, Kafetzakis, Emmanouil, Khodashenas, Pouria Sayyad, Kourtis, Anastasios, Mouratidis, Haralambos, Vassilakis, Vassilios, Xylouris, George   +8 more
core   +3 more sources

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

Advanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll, Ivan Pinto‐Huguet, Enzo Rotunno, Thomas Galvani, Catalina Coll, Payam Habibzadeh Kavkani, Maria Chiara Spadaro, Yann‐Michel Niquet, Martin Børstad Eriksen, Sara Martí‐Sánchez, Georgios Katsaros, Giordano Scappucci, Peter Krogstrup, Giovanni Isella, Andreu Cabot, Gonzalo Merino, Pablo Ordejón, Stephan Roche, Vincenzo Grillo, Jordi Arbiol   +19 more
wiley   +1 more source

Design Framework of Fourier-Based Non-Orthogonal Sequences for Sparse Activity Detection in Multicell Massive Connectivity

IEEE Access, 2022
In massive machine-type communications (mMTC), grant-free access is a key enabler for a massive number of users to be connected to a base station with low signaling overhead and low latency. In this paper, new Fourier-based sequence sets are proposed for
Nam Yul Yu
doaj   +1 more source