Results 61 to 70 of about 10,065,696 (221)

A Versatile‐Designable Framework for Active and Programmable Shape‐Morphing Soft Matter Systems: From Inverse Design to Closed‐Loop Control

open access: yesAdvanced Science, EarlyView.
A versatile framework integrates addressable electrothermal actuation and strain‐constraint mechanisms to construct programmable shape‐morphing soft matter systems. By combining an analytical inverse design strategy for high‐fidelity 3D surface reconstruction with deep learning‐based closed‐loop control, this approach enables zero‐energy shape locking,
Kai Liu   +5 more
wiley   +1 more source

Load Sharing Design of 8 MW Wind Power Gearbox based on ADAMS Simulation Driving

open access: yesJixie chuandong, 2015
Improving the load sharing property of multiple planets is not only one of the effective methods to improve the large megawatt wind turbine gearbox power density,but also is the key to the design of wind turbine gearbox.
Dong Huimin   +5 more
doaj  

Heat exchange performance optimization of a wheel loader cooling system based on computational fluid dynamic simulation

open access: yesAdvances in Mechanical Engineering, 2018
This study establishes a thermal management model to improve the heat exchange performance and uniformity of the flow-field distribution in the engine compartment of a wheel loader. Flow-field analyses are performed for an XG956 wheel loader in a virtual
Chao Yu   +3 more
doaj   +1 more source

Considerations on Active Control of Crosswind Stability of Railway Vehicles [PDF]

open access: yes, 2013
The DLR research project Next Generation Train deals with concepts, methods and technologies for a very high-speed train in double deck configuration and light-weight design.
Kurzeck, Bernhard   +3 more
core   +1 more source

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

open access: yesAdvanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li   +8 more
wiley   +1 more source

Analysis of the Dynamic Characteristic of Wind Turbine Planetary Gear System with Flexible Support

open access: yesJixie chuandong, 2016
As the wind turbine gearbox mounted on a flexible support tower,the wind turbine tower will be bent and wiggled under the complex working conditions,and it will serious influence on the dynamic characteristic of the wind turbine gear transmission system.
Jiang Gaige   +3 more
doaj  

Influence of wheel rotation and tire geometry details on the numerical prediction of vehicle aerodynamics under crosswind conditions

open access: yesResults in Engineering
Reducing aerodynamic drag is essential for improving vehicle energy efficiency. To reflect real-world conditions, it is important to consider crosswinds in addition to zero-yaw conditions.
Akihiro Nakata   +3 more
doaj   +1 more source

Integration of crosswind forces into train dynamic modelling [PDF]

open access: yes, 2011
In this paper a new method is used to calculate unsteady wind loadings acting on a railway vehicle. The method takes input data from wind tunnel testing or from computational fluid dynamics simulations (one example of each is presented in this article ...
G Xie   +14 more
core   +1 more source

Gestational Hypoxia Disrupts Medial Ganglionic Eminence Progenitor Dynamics and Interneuron Development in Schizophrenia

open access: yesAdvanced Science, EarlyView.
FES‐derived MGE spheroids exhibit progenitor‐stage alterations in developmental trajectory and hypoxia‐responsive transcriptional programs, followed by functional disruption. Gestational hypoxia recapitulates impaired progenitor proliferation, shortened cell‐cycle progression, interneuron developmental abnormalities, and schizophrenia‐like behaviors in
Peiyan Ni   +17 more
wiley   +1 more source

Modelling the Dynamic Behaviour of the Wheel-Rail Interface by Using a Novel 3D Wheel-Rail Contact Model [PDF]

open access: yes, 2011
Methods for multibody modelling and simulation should accurately replicate the dynamic behaviour of rail-wheel interface including precise values for wheel-rail contact positions. This paper studies the development of a novel 3-D wheel-rail contact model
Pislaru, Crinela   +3 more
core   +2 more sources

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