Results 101 to 110 of about 63,183 (273)

Miniature Robotic Swimmer with Precise 2D Motion Control via Acoustic Vortex‐Induced Propulsion

open access: yesAdvanced Science, EarlyView.
In this work, a miniature robotic swimmer achieves precise 2D motion using sound waves with customized 3D‐printed lenses. Localized acoustic vortices drive both translation and rotation of the swimmer without mechanical parts. This contactless approach offers a novel route to controlled micro‐scale movement, with promising applications in biomedical ...
Chadi Ellouzi   +6 more
wiley   +1 more source

Contactless Fatigue Level Diagnosis System Through Multimodal Sensor Data

open access: yesBioengineering
Fatigue management is critical for high-risk professions such as pilots, firefighters, and healthcare workers, where physical and mental exhaustion can lead to catastrophic accidents and loss of life.
Younggun Lee   +4 more
doaj   +1 more source

Droplet Digital CRISPR for Nucleic Acid Detection

open access: yesAdvanced Science, EarlyView.
This review outlines recent advances in droplet digital CRISPR technology for nucleic acid detection, combining CRISPR specificity with droplet digital‐based absolute quantification. It summarizes core principles, amplification‐assisted and amplification‐free strategies, and representative DNA and RNA biomarker applications.
Yang Zhang   +4 more
wiley   +1 more source

Driving quantized vortices with quantum vacuum fluctuations

open access: yes, 2010
We propose to use a rotating corrugated material plate in order to stir, through the Casimir-Polder interaction, quantized vortices in an harmonically trapped Bose-Einstein condensate.
Contreras-Reyes, Ana M.   +6 more
core   +3 more sources

Modification Strategies of Carbon‐Based Electrodes From Structural Regulation to Multifunctional Integration

open access: yesAdvanced Science, EarlyView.
Tracing the evolution from structural regulation to multifunctional integration, this paper systematically analyzes modification strategies for carbon‐based electrodes. It evaluates how element doping, surface functionalization, and composite material design affect the electrode performance, and offers perspectives on future applications and challenges
Yunlei Wang   +4 more
wiley   +1 more source

Noncontact temperature pattern measuring device [PDF]

open access: yes
This invention relates to a noncontact imagine pyrometer system for obtaining the true temperature image of a given substance in a contactless fashion without making assumptions about localized emissivity of the substance or the uniformity of the ...
Allen, J. L., Elleman, D. D., Lee, M. C.
core   +1 more source

Інтерактивний контроль при формоутворенні багатогабаритних деталей [PDF]

open access: yes, 1996
Physical phenomenon of warping (springing) can be observed as a technological heritage after large-dimensional articles forming or curing and consequent cooling of composite articles.
Hohmann, S.   +3 more
core  

Contactless polygraph

open access: yes, 2023
The constant transformation of our surroundings often goes unnoticed, but it occurs nonetheless. Imperceptibly, our skin undergoes slight color changes as our hearts beat, and our heads subtly move with each breath. While these alterations may escape our eyes, they are captured by cameras.
openaire   +1 more source

Stress‐Induced Melting Controlled Failure Mechanisms of Methane Hydrate

open access: yesAdvanced Science, EarlyView.
We study methane hydrate via nanoindentation and nuclear magnetic resonance (NMR), finding its regional melting and mechanical properties, challenging existing views on hydrogen‐bonded crystals. Abstract Methane hydrate, a kind of nonstoichiometric crystalline, attracted worldwide attentions as a promising substitute energy. Its Dissociation is thought
Yanlong Li   +9 more
wiley   +1 more source

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