Results 211 to 220 of about 39,384 (246)

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

open access: yesAdvanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun   +3 more
wiley   +1 more source

Numerical Modeling of Photothermal Self‐Excited Composite Oscillators

open access: yesAdvanced Robotics Research, EarlyView.
We present a numerical framework for simulating photothermal self‐excited oscillations. The driving mechanism is elucidated by highlighting the roles of inertia and overshoot, as well as the phase lag between the thermal moment and the oscillation angle, which together construct the feedback loop between the system state and the environmental stimulus.
Zixiao Liu   +6 more
wiley   +1 more source

Theoretical Investigation of the Sensitivity—Q Trade‐off in Terahertz Graphene Metamaterial Sensors via Interdigitated Design and Complex‐Frequency Waves

open access: yesAdvanced Sensor Research, EarlyView.
A dual strategy combining interdigitated graphene resonators and complex‐frequency waves yields a 54‐fold Q$Q$‐factor enhancement and superior sensitivity, establishing a high‐FOM platform for ultrasensitive terahertz biosensing. ABSTRACT Terahertz (THz) technology holds great promise in biomedical imaging, non‐destructive testing, biosensing, and ...
Mingxuan Mao   +3 more
wiley   +1 more source

Crystal structure of bis-(2-bromo-ethyl-ammonium) hexa-bromido-stannate(IV). [PDF]

open access: yesActa Crystallogr E Crystallogr Commun
Kreiman DS   +4 more
europepmc   +1 more source

Capillary Dynamics Analysis of Millimetric Tubes for Anti‐Slip Surfaces: A Phase‐Field Based Finite Element Approach and Experimental Validation

open access: yesAdvanced Theory and Simulations, EarlyView.
Phase‐field method based numerical modelling of the capillary rise in millimeter‐sized tubes, aiming for anti‐slip applications. The experimental validation was performed through capillary assays in polyethylene oxide (PEO) bulk modified polydimethylsiloxane (PDMS) channels.
Shivam Sharma   +7 more
wiley   +1 more source

Rovibrational dynamics of the quasistructural N<sub>2</sub> dimer. [PDF]

open access: yesCommun Chem
Tóbiás R   +5 more
europepmc   +1 more source

Anisotropically Wettable Porous Transport Layers for Gas Management in Water Electrolyzers

open access: yesAdvanced Science, EarlyView.
Synergistic wetting, achieved by integrating hydrophilic and hydrophobic domains, enhances mass transport in porous transport layers. In situ visualization reveals that dual‐phase wetting suppresses gas accumulation and promotes continuous bubble release, enabling stable, bubble‐free electrolysis within membrane electrode assemblies.
Yunseok Kang   +8 more
wiley   +1 more source

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