Modeling of Crescent‐Type Internal Gear Pumps Considering Gear Radial Micromotion
A numerical approach for investigating crescent‐type internal gear pumps, coupling a lumped parameter pressure solver with a CFD film simulator based on transient gap geometries solved from gear loading forces was proposed. Volumetric efficiency prediction was validated by measurements.
Dinghao Pan, Andrea Vacca
wiley +1 more source
A Motion‐Sensing Integrated Soft Robot with Triboelectric Nanogenerator for Pipeline Inspection
A soft robot integrated with triboelectric nanogenerator‐based tactile sensors is proposed to achieve locomotion within pipelines and exteroception of different materials and structures of pipeline inner surfaces. By introducing a 1D‐convolutional neural network algorithm, the soft robot's accuracy in recognizing eight different pipe inner surface ...
Rui Chen+8 more
wiley +1 more source
Experiments and Computational Fluid Dynamics on Vapor and Gas Cavitation for Oil Hydraulics
A computational fluid dynamics cavitation model for vapor and gas cavitation in hydraulic oil is presented, parameterized, and validated. For numerous operating points, cavitation in a realistic valve geometry is visualized using shadowgraphs and high‐speed cameras. Vapor and gas cavitation are experimentally separated by complete degassing of the oil.
Sven Osterland+2 more
wiley +1 more source
The MAGPI Survey: Using kinematic asymmetries in stars and gas to dissect drivers of galaxy dynamical evolution [PDF]
We present a study of kinematic asymmetries from the integral field spectroscopic surveys MAGPI and SAMI. By comparing the asymmetries in the ionsied gas and stars, we aim to disentangle the physical processes that contribute to kinematic disturbances. We normalise deviations from circular motion by $S_{05}$, allowing us to study kinematic asymmetries ...
arxiv
Implementation of a Biologically Inspired Responsive Joint Attention System for a Social Robot
This work introduces a responsive joint attention system in the social robot Mini, enabling dynamic, human‐like responses based on the user's head, body, and gaze. The system enhances user engagement and robot responsiveness. An experiment reveals significant improvements in social presence when the system is active, validating its effectiveness in ...
Jesús García‐Martínez+4 more
wiley +1 more source
Hydrophilic Chitosan Derivatives: Synthesis and Applications
A benign and low‐cost alternative for fossil‐fuel‐sourced polymers, chitosan has tremendous potential because of its bioactivity, biocompatibility, biodegradability, and low toxicity. Synthetic pathways for chitosan derivatives with improved water solubility, and their associated applications, are explored. With the change in global direction towards a
Erez Cohen, Elena Poverenov
wiley +1 more source
This article proposes a soft wearable robot (WeaRo) to assist workers while executing manual handling tasks. With its innovative design, the WeaRo effectively assists multiple body parts during manual handling tasks while using a single motor. Furthermore, the components of the WeaRo are assembled onto a fabric‐based suit, ensuring high performance and
Dongun Lee+3 more
wiley +1 more source
Stellar Kinematics and Mean Parallaxes [PDF]
Harlow Shapley, Frank K. Edmondson
openaire +2 more sources
The evolution of hot Jupiters revealed by the age distribution of their host stars. [PDF]
Chen DC+13 more
europepmc +1 more source
Real‐Time Motion Generation for Robot Manipulators in Complex Dynamic Environments
A motion generation method for robot manipulators in complex dynamic environments is presented. The method integrates global motion planning with local obstacle avoidance, ensuring continuous movement toward dynamically measured target poses. An online distance calculation algorithm is developed, and a collision‐free motion generator is proposed that ...
Tianyu Zhang+6 more
wiley +1 more source