Results 171 to 180 of about 3,322,345 (245)

Bone metabolism during strict head-down tilt bed rest and exposure to elevated levels of ambient CO₂. [PDF]

NPJ Microgravity, 2022
McGrath ER, Frings-Meuthen P, Sibonga J, Heer M, Clement GR, Mulder E, Smith SM, Zwart SR.   +7 more
europepmc   +1 more source

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

Advanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu, Chunlong Wang, Xiaohang Sun, Hongwei Guo, Jiayao Ma, Yan Chen   +5 more
wiley   +1 more source

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

Advanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff, Simon Holzer, Stefania Konstantinidi, Yoan Civet, Yves Perriard   +4 more
wiley   +1 more source

Optic disc edema during strict 6° head-down tilt bed rest is related to one-carbon metabolism pathway genetics and optic cup volume. [PDF]

Front Ophthalmol (Lausanne), 2023
Zwart SR, Macias BR, Laurie SS, Ferguson C, Stern C, Suh A, Melin MM, Young M, Bershad E, Smith SM.   +9 more
europepmc   +1 more source

Data‐Driven Bulldozer Blade Control for Autonomous Terrain Leveling

Advanced Robotics Research, EarlyView.
A simulation‐driven framework for autonomous bulldozer leveling is presented, combining high‐fidelity terramechanics simulation with a neural‐network‐based reduced‐order model. Gradient‐based optimization enables efficient, low‐level blade control that balances leveling quality and operation time.
Harry Zhang, Ganesh Arivoli, Huzaifa Unjhawala, Luning Bakke, Radu Serban, Dan Negrut   +5 more
wiley   +1 more source

Ophthalmic changes are associated with visual cortex functional network reorganization after 90-day head-down tilt bed rest. [PDF]

Quant Imaging Med Surg
Cai L, Lv K, Niu H, Ren P, Li H, Xie Y, Liu Y, Li K, Zhang T, Ma X, Fu Y, Xu Z, Shao Y, Lu L, Qiao P, Lv H, Zheng W, Yang C, Wang N, Wang L, Luo D, Qu L, Li Y, Wang Z.   +23 more
europepmc   +1 more source

Effect of head down tilt on heart rate variability. [PDF]

J Family Med Prim Care, 2021
Malhotra V, Thakare AE, Hulke SM, Wakode SL, Parashar R, Ravi N.   +5 more
europepmc   +1 more source

Design and Modeling of a High‐Displacement, Skin‐Integrated Flexible Electromagnetic Actuator for Haptic Interfaces in Virtual Reality

Advanced Robotics Research, EarlyView.
A flexible, skin‐integrated electromagnetic actuator is developed for wearable virtual/augmented reality (VR/AR) haptic systems. A tunable design model enables control over displacement and resonance frequency. The system is validated through a custom VR application with a 6 × 4 actuator array, demonstrating real‐time, spatially targeted tactile ...
Naji Tarabay, Alexandra Zhang Jiang, Ziteng Liu, Rachel Villamor, Derek Cha, Ananya Renuka Balakrishna, Tianshu Liu, Priyanshu Agarwal, Rainer Dömer, Camilo Velez   +9 more
wiley   +1 more source

Head Down Tilt 15° to Increase Collateral Flow in Acute Ischemic Stroke: Rationale and Study Protocol of a Multicenter, Randomized, Proof-of-Concept, Phase 2a/b Trial in Patients Treated With Mechanical Thrombectomy (DOWN-SUITE). [PDF]

Stroke Vasc Interv Neurol
Pedrazzini FA, Piergallini L, Diamanti S, Fainardi E, Vinci SL, Sozzi C, Farè M, Rossi E, Graziano F, Poggetti F, Mainini G, Giglio A, Magi A, Pederzoli G, Anzani A, De Bernardi E, Cerina V, Cho TH, Chauveau F, Carone D, Basso G, Citerio G, Sarti C, Limbucci N, Janes F, Casella C, Toscano A, Sacco S, Toni D, Remida P, Ferrarese C, Beretta S.   +31 more
europepmc   +1 more source

MicroRoboScope: A Portable and Integrated Mechatronic Platform for Magnetic and Acoustic Microrobotic Experimentation

Advanced Robotics Research, EarlyView.
This work presents the MicroRoboScope, a highly integrated, compact, and portable microrobotic experimentation platform combining electromagnetic and acoustic actuation with real‐time visual feedback into a single, end‐to‐end device. The system enables closed‐loop control and tracking algorithm experimentation within an accessible and unified hardware ...
Max Sokolich, Yanda Yang, Subrahmanyam Cherukumilli, Fatma Ceren Kirmizitas, Sambeeta Das   +4 more
wiley   +1 more source