Results 221 to 230 of about 1,507,269 (398)

Bearing tester data compilation, analysis and reporting and bearing math modeling, volume 1 [PDF]

open access: yes
Thermal and mechanical models of high speed angular contact ball bearings operating in LOX and LN2 were developed and verified with limited test data in an effort to further understand the parameters that determine or effect the SSME turbopump bearing ...
Marshall, D. D.   +4 more
core   +1 more source

3D‐Printed Ion‐Conductive Hydrogels with Tunable Mechanical–Electrical Properties for Multimodal Sign Language Recognition

open access: yesAdvanced Science, EarlyView.
This work successfully fabricated ion‐conductive hydrogels with low hysteresis and high conductivity using 3D printing technology. By adjusting the component ratios, the properties of the hydrogels can be tuned to meet diverse sensing requirements. Finally, a multimodal sensing sign language recognition system was constructed based on this hydrogel ...
Quan Hu   +9 more
wiley   +1 more source

Evaluation of shuttle turbopump bearings [PDF]

open access: yes
Because the high pressure turbopumps used on the space shuttle main engine (SSME) are high speed machines and rotor dynamics analysis of these units is very complicated, it was considered necessary to verify calculated turbomachinery shaft bearing loads ...
Dufrane, K. F., Kannel, J. W.
core   +1 more source

Beyond Traditional RAFT Polymerization: Emerging Strategies and Future Perspectives; A Third Update

open access: yesAdvanced Science, EarlyView.
This review explores recent advances in the past five years for non‐traditional RAFT polymerization, focusing on new activation strategies, sustainable depolymerization, and integration with automated and AI‐driven synthesis. Together, these innovations advance polymer chemistry and reveal how the pieces of the non‐traditional RAFT puzzle are steadily ...
Vianna F. Jafari   +10 more
wiley   +1 more source

3D‐Printed Architected Anisotropic Channels for Ultrafast Solar‐Driven Interfacial Evaporation via Localized Thermal Management and Water Layer Structuring

open access: yesAdvanced Science, EarlyView.
A 3D‐printed anisotropic channel evaporator integrates directional geometry with aligned titanium oxide, boron nitride, and chitosan networks to coordinate photon absorption, heat localization, and water transport. Phonon‐guided thermal pathways and interfacial water structuring enable ultrahigh evaporation rates and long‐term salt‐resistant solar ...
Sijia Sun   +9 more
wiley   +1 more source

A Novel Equal Area-Equal Width-Equal Bin Numbers Technique Using Salp Swarm Optimization Algorithm for Maximizing the Success Rate of Ball Bearing Assembly [PDF]

open access: hybrid
Lenin Nagarajan   +5 more
openalex   +1 more source

Sub-surface stress analysis of slewing bearing ball based on plastic deformation

open access: diamond, 2020
Biao Deng   +3 more
openalex   +1 more source

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