Results 151 to 160 of about 83,388 (271)

Review of Failure Mechanisms of Steel Wire Ropes Under Heavy-Load Conditions and the Anti-Friction Effects of Gel-like Grease. [PDF]

Gels
Peng H, Zhang Y, Shangguan L, Zhao M, Li B, Yang L, Liu Y.   +6 more
europepmc   +1 more source

REWW‐ARM—Remote Wire‐Driven Mobile Robot: Design, Control, and Experimental Validation

Advanced Intelligent Systems, EarlyView.
The Remote Wire‐Driven robot “REWW‐ARM” demonstrates a new concept of remote actuation that separates electronics from harsh environments while retaining closed‐loop control. Combining tendon‐sheath mechanisms with decoupled joints, it achieves efficient power transmission and autonomous locomotion, manipulation, and underwater operation, suggesting ...
Takahiro Hattori, Kento Kawaharazuka, Temma Suzuki, Keita Yoneda, Kei Okada   +4 more
wiley   +1 more source

Advanced rocket engine cryogenic turbopump bearing thermal model [PDF]

A lumped node thermal model was developed representing the Space Shuttle Main Engine (SSME) liquid oxygen (LOX) turbopump turbine end bearings operating in a cryogenically cooled bearing tester.
Cody, J. C., New, L. S., Tiller, B. K.
core   +1 more source

Myoelectric Origami‐Based Soft Robotic Knee Exoskeleton to Enhance Sit‐to‐Stand Assistance in Elderly Populations

Advanced Intelligent Systems, EarlyView.
This work presents a lightweight Miura‐origami soft knee exoskeleton powered by vacuum actuation and integrated with a multimodal physiological intent‐recognition system, providing real‐time assistance during sit‐to‐stand movement to reduce muscle effort and improve user comfort.
Yuchuan Jia, Xingjian Ye, Xuanyi Zhou, Yong Ling, Daniela Rus, Chen‐Hua Yeow   +5 more
wiley   +1 more source

Mechanical Behavior and Performance Degradation of Structural Cables in Buildings: A Comprehensive Review. [PDF]

Materials (Basel)
Chen X, Zhang H, Liu H, Wang J, Zhang Y, Guo L, Chen Z, Kosior-Kazberuk M, Krassowska J.   +8 more
europepmc   +1 more source

Ball Bearing Mechanics [PDF]

Load-deflection relationships for different types of elliptical contacts such as those found in a ball bearing are developed. Simplified expressions that allow quick calculations of deformation to be made simply from a knowledge of the applied load, the ...
Dowson, Duncan, Hamrock, Bernard J.
core   +1 more source

Archaeological Damage Assessment in Conflict Zones: Integrating Satellite Imagery and Ground Surveys in Daraa, Syria

Archaeological Prospection, EarlyView.
ABSTRACT Satellite remote sensing is among the most significant modern methodologies supporting field archaeology. In addition to its efficiency in identifying archaeological sites, remote sensing offers a safe and cost‐effective approach in conflict zones.
Amal Al Kassem, Kristen Hopper, Ismael M. Ibraheem, Andreas Maier, Mohammad Khair Nassrallah, Jürgen Richter   +5 more
wiley   +1 more source

Enhancing mechanical attributes and tribological performance of titanium friction stir welded joints through nanoparticle reinforcement. [PDF]

Sci Rep
Giridharan K, Kumar AP, Chakravarthi G, Sadhasivam RMS, Manikandan D, Ramaswamy K.   +5 more
europepmc   +1 more source

Experimental investigations of elastohydrodynamic lubrication [PDF]

Various experimental studies of elastohydrodynamic lubrication have been reviewed. The various types of machines used in these investigations, such as the disc, two and four ball, crossed-cylinders, and crossed-axes rolling disc machine, are described ...
Dowson, D., Hamrock, B. J.
core   +1 more source

Youth activism in Poland: Perceptions, participation and diverging perspectives from young people and activists

British Educational Research Journal, EarlyView.
Abstract Recent years have seen a growing scholarly interest in youth activism (YA), a phenomenon often viewed as a positive development in response to declining civic and political engagement among young people. However, most of the research focuses on the activists themselves and gives less attention to how YA is perceived by the broader youth ...
Martyna Elerian, Miri Yemini, Katarzyna Jasikowska   +2 more
wiley   +1 more source