Results 81 to 90 of about 2,813,006 (349)
The influence of phase-modulation on femtosecond time-resolved coherent Raman spectroscopy [PDF]
, 1988 The influence of phase-modulation on femtosecond time-resolved coherent Raman scattering is investigated theoretically and experimentally. The coherent Raman signal taken as a function of the spectral position shows unexpected temporal oscillations close
A. Laubereau +18 more
core +1 more source
Large-Amplitude Pulse Propagation—A Transient Effect [PDF]
The Journal of the Acoustical Society of America, 1970 An experimental demonstration of transient-signal generation during the propagation of a large-amplitude ultrasonic pulse has been made. This phenomenon was treated theoretically by Berktay [J. Sound Vibration 2, 435–461 (1965)]. Data are presented for a pulsed 10-MHz carrier propagating in CCl4.
M. B. Moffett +2 more
openaire +1 more source
Advanced Engineering Materials, EarlyView.This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar +6 more
wiley +1 more source
Development and Characteristic Test of Downhole Alternating Flow Field ROP Enhancing Tool
Shiyou jixie, 2020 Existing pulse jet tools have the problems of large pulse intensity loss and inferior ROP enhancement performance. To address the problem, a new type of downhole alternating flow field ROP enhancing tool is developed.
Fan Jiqiang
doaj
Superposed pulse amplitude modulation for visible light communication.
Optics Express, 2013 We propose and experimentally demonstrate a novel modulation scheme called superposed pulse amplitude modulation (SPAM) which is low-cost, insensitive to non-linearity of light emitting diode (LED).
Jianrui Li +5 more
semanticscholar +1 more source
, 2014 Citation: 'pulse amplitude analyser' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.P04945 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for
openaire +1 more source
Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding
Advanced Engineering Materials, EarlyView.This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou +6 more
wiley +1 more source
Simple device produces accelerometer calibration pulse [PDF]
, 1965 Shock-impulse exciter produces a remote checkout of the amplitude calibration and frequency response of a piezoelectric vibration accelerometer. The exciter employs a bimetal spring to apply a mechanical acceleration pulse of a known amplitude and ...
core +1 more source
Excitability in semiconductor microring lasers: Experimental and theoretical pulse characterization
, 2010 We characterize the operation of semiconductor microring lasers in an excitable regime. Our experiments reveal a statistical distribution of the characteristics of noise-triggered optical pulses that is not observed in other excitable systems.
Beri, S. +6 more
core +1 more source
Pulse mode operation of Love wave devices for biosensing applications [PDF]
, 2001 In this work we present a novel pulse mode Love wave biosensor that monitors both changes in amplitude and phase. A series of concentrations of 3350 molecular weight poly(ethylene glycol) (PEG) solutions are used as a calibration sequence for the pulse ...
Gizeli, E +4 more
core +1 more source