Results 191 to 200 of about 362,427 (261)

A smart nail platform for wireless subsoil health monitoring via unmanned aerial vehicle-assisted radio frequency interrogation. [PDF]

Nat Commun
Ramesh Y, Rana MM, Srinivasan P, Krishnakumar A, Gopalakrishnan S, Adams J, Armstrong S, Rahimi R.   +7 more
europepmc   +1 more source

Exciton Radiative Lifetimes in Hexagonal Diamond Ge and SixGe1–x Alloys

Advanced Optical Materials, EarlyView.
Strong room‐temperature photoluminescence reported in hexagonal Ge conflicts with theory predicting a nearly dark band edge. First‐principles calculations of excitonic radiative lifetimes fill a key gap in this debate, showing that pristine hexagonal Ge remains intrinsically weakly emissive, while Si alloying only modestly shortens the lifetime and ...
Michele Re Fiorentin, Michele Amato, Maurizia Palummo   +2 more
wiley   +1 more source

Two-Antenna Gain Measurement Method Using Two UAVs. [PDF]

Sensors (Basel)
Kandregula VR, Zaharis ZD, Vassos E, Ahmed QZ, Khan FA, Whittow WG, Whittaker T, Lazaridis PI.   +7 more
europepmc   +1 more source

On–Off Switchable Micromotors for Use in Steerable Microvehicles

Advanced Robotics Research, EarlyView.
Electrically controllable micromotors and microvehicles are developed by tuning the diffusion of the fuel. Self‐propelled micromotors using bubble propulsion show great promise for miniaturized devices with multiuse purposes such as cargo delivery and sensing. However, there is currently no method to electrically switch the micromotors on or off. Here,
Hugo Severinsson, Eswaran Murugasen, Jose G. Martinez, Edwin W. H. Jager   +3 more
wiley   +1 more source

Interconnection morphology effects on the radio frequency response of carbon nanotube sponges. [PDF]

Beilstein J Nanotechnol
Scarselli M, Rezvani J, Zuccari Z, Scagliotti M, Tocci S.   +4 more
europepmc   +1 more source

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

Advanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source

Classification of fall risk in Parkinson's disease using empirical mode decomposition and machine learning. [PDF]

Front Bioeng Biotechnol
Gui Y, Fan Y, Liu L, Cao J, Zhang L, Yu Y, Adams R, Han J, Lyu J.   +8 more
europepmc   +1 more source

A Multidirectional Textile Interface for Remote Control Using Dynamic Area‐Based Capacitance Modulation

Advanced Robotics Research, EarlyView.
Here, we present a textile, wearable capacitive interface enabling multidirectional remote control by dynamically modulating electrode overlap and spacing via a freely gliding upper electrode. A forearm‐mounted prototype drives robotic and media tasks with 12–15 ms latency, maintains < 0.8% drift after 500 cycles, and remains stably functional at 90 ...
Cagatay Gumus, Fulya Yenilmez, Kadir Ozlem, Hakan Kestir, Eren Tasdemir, Berkant Bakisli, Gökhan Ince, Ozgur Atalay, Asli Tuncay Atalay   +8 more
wiley   +1 more source

Entanglement-inspired frequency-agile rangefinding. [PDF]

Nat Commun
Nie W, Zhang P, McMillan A, Clark AS, Rarity JG.   +4 more
europepmc   +1 more source