Results 131 to 140 of about 249,393 (316)

Maneuverable Multilegged Locomotion through Anisotropically Arranged Soft Backbones in a Single‐Actuator Modular Miniature Robot

open access: yesAdvanced Intelligent Systems, EarlyView.
A modular eight‐legged robot exploits anisotropically oriented soft I‐beam backbones to transmit vibration from a single unbalanced‐mass actuator, producing frequency‐dependent multimodal gaits. A pseudo‐rigid‐body model enables high‐fidelity MuJoCo simulation, while Bayesian parameter identification and reinforcement learning yield robust control ...
Yiğit Yaman   +4 more
wiley   +1 more source

Diatom‐Inspired 1D Immobile Robots Capable of 2D Collective Mobility

open access: yesAdvanced Intelligent Systems, EarlyView.
This study presents a diatom‐inspired robotic system that explores group coordination through limited physical interactions. The researchers tune groups of Barbots, simple robotic agents that possess neither individual mobility nor explicit communication capabilities, to achieve complex and adaptive collaboration based on environmental light.
Tianyi Hu   +4 more
wiley   +1 more source

Research on NC Machining Method of Face Gear in High Speed Milling

open access: yesJixie chuandong, 2019
According to the principle of differential geometry and the theory of gear meshing, and with CNC milling machine high speed milling machined face gear as the research object, the mathematical model of straight tooth face gear is established. Based on the
Xingzu Ming   +4 more
doaj  

A method for static and dynamic load analysis of standard and modified spur gears [PDF]

open access: yes, 1983
The mesh stiffness and dynamic load characteristics for several cases of the Normal Contract Ratio and High Contact ratio gearing. The considered contact ratios were grouped in the general range of 1.7,2.0, and 2.3.
Kasuba, R.
core   +1 more source

The role of Research‐Practice Ambassadors in strengthening socially just and equitable partnership processes

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract Research‐Practice Partnerships seek to close the research‐practice gap through developing collaborative, authentic partnerships between researchers and community members. Our team has leveraged Research‐Practice Ambassadors to support socially just and equitable partnership processes in schools.
Danielle R. Hatchimonji   +8 more
wiley   +1 more source

Finite Element Simulation Analysis for Dynamic Meshing Force of Straight Tooth Face Gear

open access: yesJixie chuandong, 2015
Analysis of the dynamic meshing force of face gear is the important content in the design of face gear drive with high quality.Based on the secondary development of CATIA and the principle of gear machining,the 3Dgeometric modeling of face gear for ...
Cao Maopeng, Tang Jinyuan, Lei Duncai
doaj  

Spur-gear optimization using SPUROPT computer program [PDF]

open access: yes
A computer program developed for optimizing spur gear designs, SPUROPT, was updated by installing a new subroutine that uses AGMA 908-B89 standards to calculate the J-factor for determining tooth-bending stress.
Coe, Harold H.
core   +1 more source

Space craft soft landing system Patent [PDF]

open access: yes, 1965
Spacecraft shock absorbing system for soft ...
Eddins, T. O.
core   +1 more source

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen   +7 more
wiley   +1 more source

Load Tooth Contact Analysis for Arc Tooth Face Gear Considering Assembly Misalignment

open access: yesJixie chuandong, 2015
The generating method is adopted for processing arc tooth face gear to ensure the meshing precision of arc tooth face gear pair. The tooth face contact model is established with assembly misalignment.
Cui Yanmei, Fang Zongde, Wang Xing
doaj  

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