Results 91 to 100 of about 287,056 (358)

Robotic Materials With Bioinspired Microstructures for High Sensitivity and Fast Actuation

open access: yesAdvanced Science, EarlyView.
In the review paper, design rationale and approaches for bioinspired sensors and actuators in robotics applications are presented. These bioinspired microstructure strategies implemented in both can improve the performance in several ways. Also, recent ideas and innovations that embed robotic materials with logic and computation with it are part of the
Sakshi Sakshi   +4 more
wiley   +1 more source

Bioinspired Tissue Transparency: Achieving Sclera‐to‐Cornea Transplantation

open access: yesAdvanced Science, EarlyView.
A bioinspired decellularization‐compression‐locking tactic (DCLT) is developed to transform human sclerae into transparent corneal substitutes. These clear, robust, and pro‐regenerative substitutes are capable of repairing complex corneal injuries, including chemical burns, keratoconus, and penetrating wounds, demonstrating their clinical potential to ...
Xiuli Sun   +8 more
wiley   +1 more source

The Millimeter-Wave Radar SLAM Assisted by the RCS Feature of the Target and IMU

open access: yesSensors, 2020
Compared with the commonly used lidar and visual sensors, the millimeter-wave radar has all-day and all-weather performance advantages and more stable performance in the face of different scenarios.
Yang Li   +4 more
doaj   +1 more source

Recent technical innovations around HF radar technology and steps towards integrated national HF radar networks [PDF]

open access: yes, 2016
HF Radar is a proven technology for ocean observing that has at present more than 600 references in the world and which is since April 2016 in application on all continents for the purpose of 2D surface currents and waves monitoring.
Agostinho, Pedro   +6 more
core  

Epsilon‐Negative Derived Electromagnetic Wave Absorption of Magnetic Metacomposites by Bifunctional Phase Paradigm

open access: yesAdvanced Science, EarlyView.
An epsilon‐negative response of up to 100000 in the radio frequency band is achieved by creating a metacomposite system with graphene/iron (III) oxide as the main body. The magnetic metacomposites are just like the mythical creature Qiongqi in Chinese mythology, capable of swallowing electromagnetic wave pollution that falls from the sky.
Xiance Zhu   +8 more
wiley   +1 more source

Range Measurement Using Radar [PDF]

open access: yes, 2014
Tato bakalářská práce se zabývá měřením vzdálenosti pomocí radaru se spojitou vlnou. V úvodní části jsou vysvětleny principy fungování radarů. Dále je uveden způsob zpracování radarového signálu, metody pro měření vzdálenosti a jejich principy.
Páč, Jakub
core  

A wave effect enabling universal frequency scaling, monostatic passive radar, incoherent aperture synthesis, and general immunity to jamming and interference

open access: yes, 2008
A fundamental Doppler-like but asymmetric wave effect that shifts received signals in frequency in proportion to their respective source distances, was recently described as means for a whole new generation of communication technology using angle and ...
Guruprasad, V.
core   +1 more source

Inertia gravity waves in the upper troposphere during the MaCWAVE winter campaign ? Part II: Radar investigations and modelling studies [PDF]

open access: yes, 2006
International audienceWe present an experimental and modelling study of a strong gravity wave event in the upper troposphere/lower stratosphere near the Scandinavian mountain ridge.
Dalin, P.   +5 more
core   +3 more sources

Structure‐Dependent Resonant Frequency Engineering of Textile Tactile Sensors Toward Rapid and Precise Braille Recognition Surpassing Human Sensation

open access: yesAdvanced Science, EarlyView.
A resonant frequency engineering strategy is proposed to modulate the sensibility of piezoresistive textile‐based tactile sensor. It achieves simultaneous detection of static pressure and dynamic vibrations across an unprecedented bandwidth of 5–600 Hz, surpassing human sensation, therefore enables rapid and precise braille recognition.
Xianhong Zheng   +17 more
wiley   +1 more source

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