Results 41 to 50 of about 7,551 (184)

Augmented MIMO: Body-Mounted Antennas for Tiny Wearable Devices

open access: yesApplied Sciences
Multiple-input–multiple-output (MIMO), which uses multiple antennas at the transmitter and receiver, is now an essential technique for increasing communication capacity without widening the occupied radio bandwidth.
Akihito Noda
doaj   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

open access: yesSmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen   +12 more
wiley   +1 more source

MIMO Channel Capacity Improvement Using Space Time Coding

open access: yesJournal of Engineering and Sustainable Development, 2015
Wireless communication systems play an important role in our life and society. In this paper, the different types of wireless communication systems Single Input-Single Output (SISO), Single Input-Multiple Output (SIMO), Multiple Input-Single Output ...
Raad Hamdan Thaher   +1 more
doaj  

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li   +7 more
wiley   +1 more source

Joint Design of Space-Time Transmit and Receive Weights for Colocated MIMO Radar

open access: yesSensors, 2018
Compared with single-input multiple-output (SIMO) radar, colocated multiple-input multiple-output (MIMO) radar can detect moving targets better by adopting waveform diversity.
Ze Yu   +3 more
doaj   +1 more source

Prognostics and Health Management in Polymer Electrolyte Fuel Cells: Current Trends, Challenges, and Future Directions

open access: yesFuel Cells, Volume 26, Issue 2, April 2026.
ABSTRACT Prognostics and health management are crucial for the reliability and lifetime assessment of polymer electrolyte fuel cells (PEFCs). Here, we review the current advances on this topic, focusing mainly on key degradation mechanisms and methodologies such as physics‐aware, data‐driven, and hybrid modeling approaches.
Farideh Abdollahi   +5 more
wiley   +1 more source

Capacity of Magnetic-Induction MIMO Communication for Wireless Underground Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2015
In underground sensor networks, electronic magnetic waves undergo severe fading due to the challenging environment. Magnetic-induction (MI) communication is a promising alternative physical layer technique for underground sensor networks.
Song Li, Yanjing Sun, Wenjuan Shi
doaj   +1 more source

Compact Inkjet-Printed Flexible MIMO Antenna for UWB Applications

open access: yesIEEE Access, 2018
In this paper, a miniaturized fully inkjet-printed flexible multiple-input-multiple-output (MIMO) antenna for ultrawideband (UWB) application is proposed, occupying a compact size of $22\times 31\times 0.125$ mm3.
Wentao Li   +4 more
doaj   +1 more source

River flow forecasting by comparative analysis of multiple input and multiple output models form using ANN

open access: yesH2Open Journal, 2021
ANN was used to create a storage-based concurrent flow forecasting model. River flow parameters in an unsteady flow must be modeled using a model formulation based on learning storage change variable and instantaneous storage rate change.
S. Agarwal   +3 more
doaj   +1 more source

Power Quality‐Oriented Multiloop Design of Floating Wind Turbines Pitch Control

open access: yesWind Energy, Volume 29, Issue 4, April 2026.
ABSTRACT Floating offshore wind turbines (FOWTs) face inherent control limitations in above‐rated operating conditions due to right‐half‐plane zeros in the blade‐pitch‐to‐rotor‐speed dynamics, which restrict achievable control bandwidth and may lead to closed‐loop instability.
Marco De Pascali   +5 more
wiley   +1 more source

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