Results 101 to 110 of about 34,568 (304)

Dataset for Paper "Role of preload in determining the performance enhancement of tidal turbines by passive pitch"

open access: yes
Experimental data and plotting scripts (MATLAB) correspond to the project "Role of preload in determining the performance enhancement of tidal turbines by passive pitch". The project studied the effect of spring preload in a passive blade pitch mechanism
Viola, Ignazio Maria   +6 more
core   +1 more source

Multi‐Omics Profiling Reveals Immunomodulatory and Pro‐Regenerative Effects of a Graphene Oxide–Collagen Scaffold in Massive Rotator Cuff Tears

open access: yesAdvanced Science, EarlyView.
A graphene oxide/collagen scaffold is developed for chronic massive rotator cuff tear repair. The scaffold improves compressive stability, supports reparative mesenchymal differentiation, and modulates the immune microenvironment. In chronic MRCT models, it reduces muscle degeneration, enhances tendon–bone regeneration, and improves functional recovery,
Renwen Wan   +24 more
wiley   +1 more source

Bolt preload selection for pulsed-loaded vessel closures [PDF]

open access: yes, 1995
Bounding, closed-form solutions are developed for selecting the bolt preload for a square, flat plate closure subjected to a pressure pulse load. The solutions consider the limiting case in which preload is primarily dependent on closure bending response
Duffey, T. A.   +2 more
core  

A Crack‐Based One‐Dimensional Microspheres Array Enables Thermal–Mechanical Decoupled Dual‐Functional Sensing

open access: yesAdvanced Science, EarlyView.
Inspired by Nostoc, a crack‐based one‐dimensional microspheres array (COMA) sensor is developed, which stabilizes crack geometry under isotropic expansion, enabling a predictable, monotonic thermal response from which true strain can be accurately extracted. The COMA sensor exhibits high sensitivity at ultralow deformation (gauge factor up to 89) and a
Wanqing Xu   +7 more
wiley   +1 more source

Study on the Mechanism and Influencing Factors of Preload Decline for Bolted Joints under Vibration

open access: yesJournal of Mechanical Engineering, 2019
: Preload directly affects the fastening performance of bolted joints. Existing research results have shown that preload may decline readily when bolted joints are subjected to cyclic transversal vibration. Plastic deformation and rotation loosening have
Hao Gong
semanticscholar   +1 more source

Origami‐Mediated Low‐Voltage Electret Soft Robotic Actuators for Human‐Machine Haptic Interfaces

open access: yesAdvanced Science, EarlyView.
This work introduces an origami‐mediated soft electret actuator that combines compliant mechanical design and enhanced charge retention for low‐voltage vibrotactile feedback. The device delivers reliable tactile cues, demonstrates durable performance under continuous actuation, and enables intuitive interaction in applications such as tactile ...
Han Chen   +8 more
wiley   +1 more source

Strain Monitoring and Installation Adjustment of Satellite–Rocket Connection Device Based on Distributed Optical Fibers

open access: yesPhotonics
In this study, a distributed optical fiber sensor was used for strain monitoring and installation adjustment of a satellite–rocket connection device under a preload.
Xiaoxi Qu   +8 more
doaj   +1 more source

Effects of MRI Protocol Parameters, Preload Injection Dose, Fractionation Strategies, and Leakage Correction Algorithms on the Fidelity of Dynamic-Susceptibility Contrast MRI Estimates of Relative Cerebral Blood Volume in Gliomas

open access: yesAmerican Journal of Neuroradiology, 2017
The authors used DSC-MR imaging simulations to examine the influence of various acquisition parameters and leakage-correction strategies on the faithful estimation of CBV. Optimal strategies were determined by protocol with the lowest mean error.
K. Leu, J. Boxerman, B. Ellingson
semanticscholar   +1 more source

Torquing preload in a lubricated bolt

open access: yes, 1978
The tension preload obtained by torquing a 7/8 in. diam UNC high strength bolt was determined for lubricated and dry conditions. Consistent preload with a variation of + or - 3% was obtained when the bolt head area was lubricated prior to each torque ...
Seegmiller, H. L.
core  

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