Results 241 to 250 of about 198,493 (311)

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

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

open access: yesAdvanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis   +7 more
wiley   +1 more source

Direct evidence of natal homing in an Atlantic herring metapopulation. [PDF]

open access: yesSci Adv
Moll D   +8 more
europepmc   +1 more source

Wavelet-based visual compass. [PDF]

open access: yesPLoS One
Meyer S   +6 more
europepmc   +1 more source

CCR2 Orchestrates Preferential Homing and Therapeutic Efficacy of Gingival Mesenchymal Stem Cell-Derived Extracellular Vesicles in Rheumatoid Arthritis. [PDF]

open access: yesMedComm (2020)
Chen J   +13 more
europepmc   +1 more source

Aberrant glycosylation in hematologic malignancies: mechanisms, immune evasion, and therapeutic targeting. [PDF]

open access: yesBlood Cancer J
Lu X   +8 more
europepmc   +1 more source

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