Results 101 to 110 of about 605,830 (356)

Recent Advances in Collective Behaviors of Micro/Nanomotor Swarms

open access: yesAdvanced Materials, EarlyView.
This review describes the driving forces behind collective motion, explores the self‐organization of micro/nano swarms across zero‐dimensional (0D), one‐dimensional (1D), two‐dimensional (2D), and three‐dimensional (3D) spaces, and highlights their potential in drug delivery, environmental monitoring, and smart devices.
Siwen Sun   +4 more
wiley   +1 more source

Impact of Heat Treatment on the Rubbing Behavior of Bump-Type Foil Journal Bearing

open access: yesTribology Online
Under low-speed or start/stop conditions, the rubbing of top foil in foil journal bearing (FJB) prompting the application of heat treatment to improve the rubbing behavior of the foil bearing.
Vishal Mourya, Skylab P. Bhore
doaj   +1 more source

Performance and loads data from a hover test of a 0.658-scale V-22 rotor and wing [PDF]

open access: yes
A hover test of a 0.658-scale model of a V-22 rotor and wing was conducted at the Outdoor Aerodynamic Research Facility at Ames Research Center. The primary objectives of the test were to obtain accurate measurements of the hover performance of the rotor
Betzina, Mark D.   +3 more
core   +1 more source

Vision‐Assisted Avocado Harvesting with Aerial Bimanual Manipulation

open access: yesAdvanced Robotics Research, EarlyView.
This work outlines the design and implementation of a bimanual aerial robot that employs visual perception and learning to detect, reach, and harvest avocados. A new gripper and fixer arm assembly is used to harvest avocados, while visual perception enables the detection of avocados and estimation of their position and orientation for determining ...
Zhichao Liu   +3 more
wiley   +1 more source

Intelligent Design Method for Thermal Conductivity Topology Based on a Deep Generative Network

open access: yesChinese Journal of Mechanical Engineering
Heat dissipation performance is critical to the design of high-end equipment, such as integrated chips and high-precision machine tools. Owing to the advantages of artificial intelligence in solving complex tasks involving a large number of variables ...
Qiyin Lin   +7 more
doaj   +1 more source

Research on a Rotating Machinery Fault Prognosis Method Using Three-Dimensional Spatial Representations

open access: yesShock and Vibration, 2016
Process models and parameters are two critical steps for fault prognosis in the operation of rotating machinery. Due to the requirement for a short and rapid response, it is important to study robust sensor data representation schemes.
Xiaoni Dong   +4 more
doaj   +1 more source

Method for driving two-phase turbines with enhanced efficiency [PDF]

open access: yes, 1985
A method for driving a two phase turbine characterized by an output shaft having at least one stage including a bladed rotor connected in driving relation with the shaft is described.
Elliott, D. G.
core   +1 more source

Fracture analysis of AA6061-graphite composite for the application of helicopter rotor blade

open access: diamond, 2021
Saleemsab Doddamani   +3 more
openalex   +2 more sources

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

open access: yesAdvanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui   +5 more
wiley   +1 more source

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