Results 31 to 40 of about 7,227,198 (175)

Radical Innovation Validation: Delivering Value in Radical Innovation Development

R&D Management, EarlyView.
ABSTRACT Radical innovation (RI) offers significant benefits, but the challenges encountered during its implementation can be formidable. Recent literature suggests the use of practices such as prototyping, experimentation, piloting, and demonstration to address these challenges through small‐scale, iterative approaches.
Ruxin Zhang, Jun Lin, Antonio Capaldo, Ying Cai   +3 more
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Fatigue Crack Modeling of Railheads Using a Nonlinear Cohesive Zone Model

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 9, Page 3738-3750, September 2026.
ABSTRACT Subsurface fatigue crack growth within railheads can be deleterious leading to catastrophic failures in rails. This study aims to model the fatigue crack growth originating at the subsurface level within railheads. Towards that end, a finite element modeling approach is utilized wherein complex crack growth is explicitly modeled using a ...
Santosh Reddy Kommidi, Hesam Mortazavi, Yong‐Rak Kim, David H. Allen   +3 more
wiley   +1 more source

An Adaptive Parameterized Domain Mapping Method and Its Application in Wheel–Rail Coupled Fault Diagnosis for Rail Vehicles

Sensors, 2023
The rapid development of cities in recent years has increased the operational pressure of rail vehicles, and due to the characteristics of rail vehicles, including harsh operating environment, frequent starting and braking, resulting in rails and wheels ...
Zihang Xu, Jianwei Yang, Dechen Yao, Jinhai Wang, Minghui Wei   +4 more
doaj   +1 more source

Fully Wireless and Flexible Valves for Multiplexed and Prolonged Intravesical Liquid Release

Advanced Healthcare Materials, Volume 15, Issue 23, 19 June 2026.
A fundamental mechanism for the simultaneous control of multiple magnetic valves is reported in a miniature soft robotic patch for intravesical drug delivery, enabling fully wireless and programmable liquid release. Integrated with a bioadhesive interface and induction‐coupling‐based liquid volume sensing, the soft robotic patch is promising to enable ...
Boyang Xiao, Yi Zhu, Yusheng Wang, Janene M. Pierce, Jeffrey J. Tosoian, Xiaoguang Dong   +5 more
wiley   +1 more source

Wheel–Rail Vertical Vibration Due to Random Roughness in the Presence of the Rail Dampers with Mixed Damping System

Applied Sciences
In this paper, the vibration of a wheel running on a light rail equipped with rail dampers that use a mixed damping system (rubber–oil) is investigated under the excitation of random roughness on the rolling surfaces, to demonstrate the influence of such
Traian Mazilu, Dorina Fologea, Marius-Alin Gheți   +2 more
doaj   +1 more source

Practical wheel/rail tangential contact force model for vehicle dynamics analysis combining Levi-Chartet’s formula with adhesion coefficient-velocity relational expression

Nihon Kikai Gakkai ronbunshu, 2023
This paper describes a practical wheel/rail tangential contact force model for railway dynamics analysis under running in rainy conditions. In our previous studies, it was confirmed that experimental results of tangential contact force measurement are ...
Daisuke YAMAMOTO
doaj   +1 more source

Culturally Safe Assistive Technology Provision in Australia: Concept Mapping Perspectives From Aboriginal and Torres Strait Islander People

Australian Journal of Social Issues, Volume 61, Issue 2, Page 395-406, June 2026.
ABSTRACT Disparities in Assistive Technology (AT) access exist for Aboriginal and Torres Strait Islander peoples despite recent policy reforms. This paper brings together First Nations and Western academic ways of being, knowing and doing to deliver an AT practice analysis based upon primary data from two research reports into the cultural safety of AT
Shane Hearn, Vanessa Langenberg, Kristy Harper, Libby Callaway, Hilary O'Connell, Eleanor Kennett‐Smith, Natasha Layton   +6 more
wiley   +1 more source

Low-Frequency Carbody Sway Modelling Based on Low Wheel-Rail Contact Conicity Analysis

Shock and Vibration, 2020
Low-frequency carbody swaying on China’s high-speed trains is not only an impediment to ride comfort but it may also be an operational risk under some extreme situations.
Yi Wu, Jing Zeng, Sheng Qu, Huailong Shi, Qunsheng Wang, Lai Wei   +5 more
doaj   +1 more source

The Effect of Track Irregularities on Wheel-Rail Contact Relationship

, 2016
Track irregularity is an inevitable problem in any rail network and it is the source of track deterioration and degradation. This becomes evident in railway projects spanning cities. Hence, the effect of track irregularities on wheel-rail contact relationship is studied with the aim to solve the contact geometry and contact pressure problems induced by
openaire   +1 more source