Results 151 to 160 of about 26,939 (296)

Thorium lung burdens of NORM workers revisited. [PDF]

Radiat Prot Dosimetry
Hewson GS, Ralph MI, Cattani M.
europepmc   +1 more source

Identifying Physical Interactions in Contact‐Based Robot Manipulation for Learning from Demonstration

Advanced Robotics Research, EarlyView.
Robots can learn manipulation tasks from human demonstrations. This work proposes a versatile method to identify the physical interactions that occur in a demonstration, such as sequences of different contacts and interactions with mechanical constraints.
Alex Harm Gert‐Jan Overbeek, Herman van der Kooij, Douwe Dresscher, Mark Vlutters   +3 more
wiley   +1 more source

A thorium-229 optical nuclear clock with feedback loop. [PDF]

Nature
Toscani De Col L, Riebner T, Morawetz I, Schneider F, Sempelmann N, Schlachet-Lépinay J, Schaden F, Bartokos M, Kazakov GA, Beeks K, Gerstenecker B, Pimon M, Lahs S, Hellerschmied A, Lercher T, Denker H, Premper J, Niessner A, Matus M, Čížek M, Číp O, Lal V, Zitzer G, Petrov V, Tiedau J, Okhapkin MV, Peik E, Schumm T.   +27 more
europepmc   +1 more source

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

Advanced 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, Liang Zhang, Jianwen Zeng, Xuefeng Wang   +3 more
wiley   +1 more source

NORM dust intake: comparison of personal air sampling and bioassays. [PDF]

Radiat Environ Biophys
Hewson GS, Ralph MI, Cattani M.
europepmc   +1 more source

Backpropagation Through Soft Body: Investigating Information Processing in Brain–Body Coupling Systems

Advanced Robotics Research, EarlyView.
This study explores how information processing is distributed between brains and bodies through a codesign approach. Using the “backpropagation through soft body” framework, brain–body coupling agents are developed and analyzed across several tasks in which output is generated through the agents’ physical dynamics.
Hiroki Tomioka, Katsuma Inoue, Yasuo Kuniyoshi, Kohei Nakajima   +3 more
wiley   +1 more source

First-Principles Investigation of Helium Incorporation Effects on the Structural Stability and Electrochemical Performance of Thorium-Based Mixed Oxide Nuclear Fuels. [PDF]

Materials (Basel)
Zhu L, Zhao S, Cheng Z, Sheng S, Liu Y, Wei Q, Wang BT.   +6 more
europepmc   +1 more source

Numerical Modeling of Photothermal Self‐Excited Composite Oscillators

Advanced 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, Ryan R. Rusch, Zheng Wu, Chi Chen, Pengju Shi, Hao Qiu, Ximin He   +6 more
wiley   +1 more source

Extraction of thorium from aqueous system using citric acid modified corn cob: characterization, kinetics, thermodynamics and adsorption mechanism. [PDF]

Sci Rep
Attia RM.
europepmc   +1 more source

Robotic Control for Human–Robot Collaborative Assembly Based on Digital Human Model and Reinforcement Learning

Advanced Robotics Research, EarlyView.
This work presents a robotic control method for human–robot collaborative assembly based on a biomechanics‐constrained digital human model. Reinforcement learning is used to generate physiologically plausible human motion trajectories, which are integrated into a virtual environment for robot control learning.
Bitao Yao, Hongzhou Ai, Wenjun Xu, Zude Zhou, Lihui Wang   +4 more
wiley   +1 more source