Results 141 to 150 of about 5,322,042 (292)

Flying Base Station Channel Capacity Limits: Dependent on Stationary Base Station and Independent of Positioning

Flying base stations, also known as aerial base stations, provide wireless connectivity to the user and utilize their aerial mobility to improve communication performance.
Jinoh Kim, Sang-Yoon Chang, Kyungmin Park, Jonghyun Kim, Chang, Sang-Yoon, Kim, Jonghyun, Kim, Jinoh, Park, Kyungmin   +7 more
core   +1 more source

Technical Feasibility Study of Autonomous Field Robot‐Based on‐the‐go Assessment of Soil Nutrients Using Ion‐Sensitive Field‐Effect Transistors

Advanced Robotics Research, EarlyView.
Autonomous field robots equipped with ISFET‐based sensors enable rapid, spatially resolved soil nutrient analysis directly in the field. An automated system based on the BoniRob platform is presented for standardized on‐site extraction and measurement of key macronutrients and soil pH.
Vadim Riedel, Stefan Hinck, Edgar Peiter, Arno Ruckelshausen   +3 more
wiley   +1 more source

A Novel Dual-Polarized Magnetoelectric Dipole Antenna and Its Array for LTE and 5G Sub-6 GHz Base Station Applications. [PDF]

Entropy (Basel), 2023
Song Z, Qi J.
europepmc   +1 more source

Origami‐Inspired Morphing Fuselage for Agile Fixed‐Wing Flight

Advanced Robotics Research, EarlyView.
Conventional aircraft steer with rigid control surfaces. SoAR instead replaces the fuselage itself with a cable‐driven origami continuum body that bends in 3D and compresses on demand. Whole‐fuselage morphing steers fixed‐wing flight: achieving sharp, near‐zero‐radius turns and rapid braking without ailerons, rudder, or elevator, while the same ...
Abudula Aihaitijiang, Cagdas D. Onal
wiley   +1 more source

Key technologies and prototype validation research of integrated sensing and communications for low altitude UAV

物联网学报
With the help of base station cellular networking, the integrated sensing and communications (ISAC) key technologies for 6G can communicate with low-altitude unmanned aerial vehicle (UAV) in a wide range of reliable low-time delay and large bandwidth ...
ZHAO Chuanbin, ZHANG Tengyu, FENG Yuan, LUO Dongqi, GAO Feifei   +4 more
doaj   +2 more sources

Evaluation of 5G Positioning Performance Based on UTDoA, AoA and Base-Station Selective Exclusion. [PDF]

Sensors (Basel), 2021
Xhafa A, Del Peral-Rosado JA, López-Salcedo JA, Seco-Granados G.   +3 more
europepmc   +1 more source

XeraBorg: Neural Control of Tail‐Flick Escape for Backward Propulsion in Cyborg Crayfish

Advanced Robotics Research, EarlyView.
This work presents the first controlled tail‐flick propulsion method for the cyborg Cherax quadricarinatus. Comprehensive experiments establish a foundational framework for using the crayfish's natural escape mechanism as a locomotion strategy, expanding its potential as an underwater and amphibious mobile robot.
H. Nhan Le, Oscar J. Davis, Lachlan Fitzgerald, Robbie Wilson, Christofer Clemente, P. Ross McAree, T. Nho Do, T. Thang Vo‐Doan   +7 more
wiley   +1 more source

Phase Diagrams and Piezoelectric Properties of Wurtzite Al1−x−yScxGdyN Heterostructural Alloys

Advanced Science, EarlyView.
This study demonstrates ferroelectricity and piezoelectric properties improvement of quaternary wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films, guided by density functional theory calculations. Wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films have a high optical bandgap, enhanced piezoelectric ...
Julia L. Martin, Cheng‐Wei Lee, Nate S.P. Bernstein, Thi Nguyen, Ande Bryan, Eli Cooper, John S. Mangum, Sage R. Bauers, Andriy Zakutayev, Keisuke Yazawa, Prashun Gorai, Rebecca W. Smaha   +11 more
wiley   +1 more source

Analytical Blind Beamforming for a Multi-Antenna UAV Base-Station Receiver in Millimeter-Wave Bands. [PDF]

Sensors (Basel), 2021
Liu P, Fan K, Chen Y.
europepmc   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source