Results 111 to 120 of about 22,082 (291)

Computational engine structural analysis [PDF]

open access: yes
A significant research activity at the NASA Lewis Research Center is the computational simulation of complex multidisciplinary engine structural problems.
Chamis, C. C., Johns, R. H.
core   +1 more source

Acoustic wave analysis [PDF]

open access: yes, 1968
The primary mechanism for generation of acoustic waves in a centrifugal pump, due to the rotor/stator interaction, is an unsteady source at the entrance of the blade row as represented by the unsteady velocity field.
Jackson, E. D.
core   +1 more source

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

open access: yesAdvanced Robotics Research, EarlyView.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello   +7 more
wiley   +1 more source

Scale-Up of a Heterogeneous Photocatalytic Degradation Using a Photochemical Rotor-Stator Spinning Disk Reactor. [PDF]

open access: yesOrg Process Res Dev, 2022
Chaudhuri A   +4 more
europepmc   +1 more source

A simulation of rotor-stator interaction using the Euler equations and patched grids [PDF]

open access: yes
An unsteady Euler code to study rotor-stator interaction problem was developed. The code uses patched grids that move relative to each other to simulate the motion of the rotor airfoils with respect to the stator airfoils. The Osher integration scheme is
Rai, M. M.
core   +1 more source

Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing

open access: yesAdvanced Robotics Research, EarlyView.
This work presents a degradable soft magnetic composite made from recycled NdFeB particles embedded in a gelatin‐based organogel. The material is processed into magnetic sensors and soft robotic components, which can later be dissolved in a green solvent to recover NdFeB magnetic particles.
Muhammad Bilal Khan   +14 more
wiley   +1 more source

Numerical solutions of 2-D multi-stage rotor/stator unsteady flow interactions [PDF]

open access: yes
The Rai method of single-stage rotor/stator flow interaction is extended to handle multistage configurations. In this study, a two-dimensional Navier-Stokes multi-zone approach was used to investigate unsteady flow interactions within two multistage ...
Lin, S.-J., Yang, R.-J.
core   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

Experimental investigation on the effect of the rotor-stator matching mode on velocity pulsation in the centrifugal pump with a vaned diffuser

open access: yesNuclear Engineering and Technology
Centrifugal pumps play an indispensable role in nuclear power plants, where severe turbulent pulsations induced by the rotor-stator interference (RSI) can generate a substantial threat to the safe and stable operation of these facilities.
Dabin Zhou   +4 more
doaj   +1 more source

Torque, but not FliL, regulates mechanosensitive flagellar motor-function

open access: yesScientific Reports, 2017
The stator-complex in the bacterial flagellar motor is responsible for surface-sensing. It remodels in response to perturbations in viscous loads, recruiting additional stator-units as the load increases.
Ravi Chawla   +2 more
doaj   +1 more source

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