Results 121 to 130 of about 203,307 (289)

NUMERICAL ANALYSIS OF HUB AND FUSELAGE INTERFERENCE TO REDUCE HELICOPTER DRAG [PDF]

open access: yes, 2012
A numerical investigation was carried out to predict the mutual interference between helicopter components. The investigation was based on the solution of RANS equations in three dimensions using unstructured grids.
Khier, Walid
core  

Intelligent Micro/Nanorobots for Targeted Interventional Therapy: From Bench to Clinic

open access: yesAdvanced Robotics Research, EarlyView.
Zirui Zhang et al. reviewed the application and challenges of mobile nanomachines in interventional therapy. By converting exogenous energy, including chemical, magnetic, optical, and ultrasonic sources, into mechanical forces, micro/nanorobots (MNRs) enable precise actuation at unprecedented scales. Evolving far beyond traditional drug delivery, these
Zirui Zhang   +5 more
wiley   +1 more source

Vortex Street Suppression by Three Control Rods for Riser

open access: yesShiyou jixie, 2016
Vortex-induced vibration (VIV) caused by lift fluctuation could greatly impact the life of the elastic and elongated flexible structure.Using numerical simulation method,in-depth study on the suppression effect,vortex shedding pattern and the suppression
Song Zhenhua, Duan Menglan
doaj  

Autonomous Navigation of Pollen‐Inspired Magnetic Microrobots for Biomedical Applications

open access: yesAdvanced Robotics Research, EarlyView.
A sunflower pollen‐inspired magnetic microrobot enables controlled rolling navigation in vessel‐like environments. Its open geometry reduces hydrodynamic drag, while vision‐based closed‐loop control, shortest‐path planning, and reinforcement learning support target‐reaching and maze navigation with microrobot‐scale accuracy, highlighting a route toward
Ali Anil Demircali   +6 more
wiley   +1 more source

Human‐Scale Rotating Magnetic Field Delivery With Permanent Magnets Under Anatomic and Robotic Constraints

open access: yesAdvanced Robotics Research, EarlyView.
Rotating magnetic fields (RMFs) are widely used for microrobot propulsion and control. We show that RMF generation with permanent magnets is mechanically feasible for many limb and intracranial applications but becomes constrained for thoracic targets.
Tuan‐Anh Le   +4 more
wiley   +1 more source

Avant-Drag!

open access: yes
Avant-Drag! offers an exhilarating look at ten Athenian drag performers who deconstruct gender, nationalism, belonging, identity, while facing police brutality, transphobia and racism. As entertaining as it is thought-provoking, Avant-Drag!
Ieropoulos, Fil
core   +4 more sources

Wireless Precise Manipulation of Tumor Spheroids Using a Millirobot Controlled by Permanent Magnetic Traps

open access: yesAdvanced Robotics Research, EarlyView.
A magnetic donut‐like millirobot is developed for label‐free pick‐and‐place of a tumor spheroid wirelessly controlled by a magnetic trap. Spheroids are important 3D multicellular culture systems that recapitulate key structural and functional features of native tissues.
Yue Gao   +8 more
wiley   +1 more source

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