Results 111 to 120 of about 302,136 (308)

An Electromechanical Co-Simulation Model Based on Lumped Parameter Model of Ball Screw Feed Drive System

open access: yesMATEC Web of Conferences, 2018
The continuous search for efficiency put forward higher requests to the machine tool for high speed and high acceleration, which makes the large-size and lightweight-designed feed drive system more likely to produce vibration during high-speed and high ...
Luo Liang   +3 more
doaj   +1 more source

Effect of Imperceptible Vibratory Noise Applied to Wrist Skin On Fingertip Touch Evoked Potentials – An EEG Study [PDF]

open access: yes, 2015
Random vibration applied to skin can change the sense of touch. Specifically, low amplitude white-noise vibration can improve fingertip touch perception.
Bonilha, Leonardo   +4 more
core   +2 more sources

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

Dynamic stability of a floating plate and a support structure (Influence of elasticity of a support structure on occurrence conditions of the self-excited vibration)

open access: yesNihon Kikai Gakkai ronbunshu, 2019
This paper presents experiments and an analysis of the self-excited vibration of a floating plate and a support structure. The system in which a floating plate and a support structure vibrate, the elasticity of the support structure influences the ...
Masakazu TAKEDA   +2 more
doaj   +1 more source

Defect‐Mediated Scintillation in Fully Inorganic Perovskites via Water‐Induced 0D/3D Phase Modulation

open access: yesAdvanced Functional Materials, EarlyView.
A reproducible synthesis to control 3D/0D phase ratios via water‐tuned solvent–antisolvent methods is presented. Enhanced scintillation yield and ultrafast decay are achieved. Defect‐driven emission mechanisms are revealed through cathodoluminescence and radioluminescence, shedding light on the underexplored role of the 0D Cs4PbBr6 and mixed 0D/3D ...
Mario Calora   +18 more
wiley   +1 more source

Nonlinear Vibration of Continuous Systems 2020

open access: yesShock and Vibration, 2023
Francesco Pellicano   +3 more
openaire   +3 more sources

Backbone Heterojunction Photocatalysts for Efficient Sacrificial Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
Herein, a ‘single‐component’ organic semiconductor photocatalyst is presented in which a molecular donor is bonded to a polymer acceptor. The resultant material demonstrates exceptional photocatalytic activity for hydrogen evolution in aqueous triethylamine with an outstanding external quantum efficiency of 38% at 420 nm.
Richard J. Lyons   +11 more
wiley   +1 more source

Application of Partial Models for Vibration Analysis of Combined Discrete-Continuous System

open access: yesEngineering Transactions, 1994
A method of analysis of complex dynamic systems by means of partial models is characterized in brief. Same advantages of that method as a means for analysis of combined discrete-continuous systems are pointed out.
T.L. Stańczyk
doaj  

Mechanochemistry‐Assisted Solvent‐Free Supramolecular Engineering for Atomic‐Layered Carbon Nitride Nanosheets with Enhanced Photocatalytic Hydrogen Evolution

open access: yesAdvanced Functional Materials, EarlyView.
A solvent‐free mechanochemistry‐enabled supramolecular engineering strategy is developed to directly synthesize covalent‐interconnected two‐dimensional atomic‐layered carbon nitride nanosheets photocatalyst, bypassing conventional top‐down exfoliation requirements.
Fanglei Yao   +7 more
wiley   +1 more source

VIBRATION CHARACTERISTICS ANALYSIS OF ROTOR-RUNNER SYSTEM UNDER FAULTY OIL COMPONENT

open access: yesJixie qiangdu, 2023
In the actual operation of bulb continuous unit, the rotor-runner system is easy to form friction fault between rotating parts and fixed parts allected by extermal incentives, which greatly affects the safe and stable operation of unit.
WU Jing, ZHANG LeiKe, WANG XueNi
doaj  

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