Results 11 to 20 of about 3,524 (266)

Molecular vibrations-induced quantum beats in two-dimensional electronic spectroscopy [PDF]

open access: yesThe Journal of Chemical Physics, 2012
Quantum beats in nonlinear spectroscopy of molecular aggregates are often attributed to electronic phenomena of excitonic systems, while nuclear degrees of freedom are commonly included into models as overdamped oscillations of bath constituents responsible for dephasing.
Butkus, Vytautas   +2 more
openaire   +3 more sources

Research and Experiment on a Bionic Fish Based on High-Frequency Vibration Characteristics

open access: yesBiomimetics, 2023
This paper takes the high-frequency vibration characteristics of a bionic robot fish as the research object. Through research on the vibration characteristics of a bionic fish, we quantified the role of voltage and beat frequency in high-speed and stable
Bo Zhang, Yu Chen, Zhuo Wang, Hongwen Ma
doaj   +1 more source

Nonlinear Dynamics and Vibration Localization of Shrouded Blisk with Contact and Friction Effects

open access: yesMachines, 2023
Shrouds have been widely used to reduce the level of excessive vibration of blisks. However, complicated nonlinear motion can be induced by the contact and friction between shrouds.
Gaofei Yuan, Yuefang Wang
doaj   +1 more source

Nonlinear Coupled Vibration Behavior of BFRP Cables on Long-Span Cable-Stayed Bridges under Parametric Excitation

open access: yesBuildings, 2023
Based on the cable-stayed beam model, this paper studies the nonlinear coupled vibration behavior of basalt fiber-reinforced polymer (BFRP) cables on long-span cable-stayed bridges under parametric excitation. Considering the sag, damping of BFRP cables,
Yaqiang Yang   +6 more
doaj   +1 more source

Development of an Electrostatic Beat Module for Various Tactile Sensations in Touch Screen Devices

open access: yesApplied Sciences, 2019
One of the most dominant factors in developing tactile modules is the ability to generate abundant vibrotactile sensation. This paper presents a new vibrotactile module which can stimulate two mechanoreceptors at the same time without any mechanical ...
Young-Bok Joo   +5 more
doaj   +1 more source

CNN-based defect diagnosis method for rotating blades

open access: yesYou-qi chuyun, 2020
In order to solve the problem of difficult blade defect diagnosis caused by severe signal under-sampling in tiptiming technology, a defect diagnosis method for rotating blade based on convolution neural network (CNN) was proposed.In the method, the under-
Jiwang ZHANG   +3 more
doaj   +1 more source

Research on Soft Flutter of 420m-Span Pedestrian Suspension Bridge and Its Aerodynamic Measures

open access: yesBuildings, 2022
In order to study the flutter of long-span pedestrian suspension bridge and its aerodynamic control, a 420m-span pedestrian suspension bridge is used as an engineering example, the wind-induced vibration of seven particular aerodynamic sections is ...
Qinghai Guan   +4 more
doaj   +1 more source

Software-Defined 1550-nm Full-Fiber Doppler Lidar for Contactless Vibration Measurement of High Voltage Power Equipment [PDF]

open access: yesRadioengineering, 2023
In this work, a 1550-nm full-fiber Doppler lidar via software-defined platform is built to realize flexible and low-cost contactless vibration measurement of high-voltage power equipment.
X. Guan, C. Lv, G. Zheng, Z. Pan, K. Cai
doaj  

Vibration Compensation of the Frequency-Scanning-Interferometry-Based Absolute Ranging System

open access: yesApplied Sciences, 2019
The frequency-scanning-interferometry-based (FSI-based) absolute ranging technology is a type of ranging technology possessing a high precision and no ranging blind area, so it can be used for non-cooperative targets. However, due to a tiny movement of a
Fu-Min Zhang   +4 more
doaj   +1 more source

On readout of vibrational qubits using quantum beats

open access: yesThe Journal of Chemical Physics, 2014
Readout of the final states of qubits is a crucial step towards implementing quantum computation in experiment. Although not scalable to large numbers of qubits per molecule, computational studies show that molecular vibrations could provide a significant (factor 2–5 in the literature) increase in the number of qubits compared to two-level systems.
Shyshlov, Dmytro   +3 more
openaire   +3 more sources

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