Results 231 to 240 of about 108,858 (358)

Uncertainty Quantification for Nonlinear Vibration of Supercritical Drive Shaft With a Dry Friction Damper

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The supercritical drive shaft is becoming increasingly popular in helicopter transmission system. Dry friction dampers are specially employed to ensure the supercritical shafts crossing the critical speed safely. Due to design tolerances, manufacturing errors and time‐varying factors, the parameters of the damper are inherently uncertain ...
Liyao Song   +4 more
wiley   +1 more source

Elucidating the Three‐Dimensional Structure of Piracetam through Rotational Spectroscopy

open access: yesChemistryOpen, EarlyView.
Neutral molecules of the nootropic drug piracetam are generated by laser ablation and structurally characterized by microwave spectroscopy. Two conformers differing in the exo/endo configuration of the pyrrolidine ring are detected, with exo being the predominant form.
S. Mato   +4 more
wiley   +1 more source

Fuzzy-2 deployment in indirect vector control and hybrid space vector modulation for a two-level inverter fed induction motor drive. [PDF]

open access: yesSci Rep
Tikkani A   +6 more
europepmc   +1 more source

Quantifying Molecular Properties of Hexagonal Water Clusters

open access: yesChemistryOpen, EarlyView.
Standard quantum chemical calculations on large hexagonal water clusters allow us to analyze the fundamental properties of ice‐Ih. Computed geometrical structure, energies, and vibrational spectra are astonishingly close to experimental data without the introduction of any external empirical parameters.
Giuseppe Lanza
wiley   +1 more source

Dry Coating with Hydrophilic and Hydrophobized Nanostructured Fumed Alumina (Al2O3) on SiOx/C Anodes for Enhanced Lithium‐Ion Battery Performance

open access: yesChemistryOpen, EarlyView.
This research explores dry particle coating as an efficient approach to enhance silicon‐based anodes using nanostructured fumed alumina. Herein, it is investigated how coating wettability impacts morphology, composition, and electrochemical performance.
Ana L. Azevedo Costa   +3 more
wiley   +1 more source

Impact of basalt powder on the rheological, thermal, mechanical, and tribological properties of natural and polychloroprene rubber composites: A study on aging and filler interaction

open access: yesPolymer Composites, EarlyView.
Impact of basalt powder on the rheological, thermal, mechanical, and tribological properties of natural and polychloroprene rubber composites. Abstract This study investigates the effects of basalt powder (BP) as a filler in natural rubber (NR) and synthetic polychloroprene rubber (CR) composites, focusing on their structural, mechanical, and thermal ...
Enes Yildiz   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy