Results 21 to 30 of about 560,528 (243)

Detection of Ethanol Using a Tunable Interband Cascade Laser at 3.345 μm

open access: yesPhotonic Sensors, 2018
With the progress of the laser manufacturing technology, trace gas sensors based on tunable interband cascade lasers (ICLs) and quantum cascade lasers (QCLs) have been widely used to detect organic compounds with high sensitivity.
Hui Gao, Liang Xie, Ping Gong, Hui Wang
doaj   +1 more source

Tremor analysis with wearable sensors correlates with outcome after thalamic deep brain stimulation

open access: yesClinical Parkinsonism & Related Disorders, 2020
Introduction: Thalamic deep brain stimulation (DBS) provides excellent tremor control in most patients with essential tremor (ET). However, not all tremor patients show clinically significant improvement after DBS surgery. Currently, there is no reliable
Dayle Rüegge   +7 more
doaj   +1 more source

Bechmann’s Number for Harmonic Overtones of Thickness-Shear Vibrations of Rotated Y-Cut Quartz Crystal Plates [PDF]

open access: yesCoatings, 2020
A procedure based on approximate solutions of three-dimensional equations of wave propagation is utilized for calculating Bechmann’s number for the harmonic overtones of thickness-shear modes in the rotated Y-cut quartz crystal plates. Bechmann’s number is used for the optimization and improvement of electrodes to yield superior performance in the ...
Han Zhang, Yumei Chen, Ji Wang
openaire   +1 more source

Applicability Of TDLAS Gas Detection Technique To Combustion Control and Emission Monitoring Under Harsh Environment

open access: yesInternational Journal of Technology, 2014
Tunable diode laser absorption spectroscopy (TDLAS) has been well-known as an established detection technique for trace gas molecules and analytical instruments based on this technique are already commercially available.
Hajime Arimoto   +7 more
doaj   +1 more source

Exploring the unexpected: Disharmonized harmonic pulsation modes in high-amplitude delta Scuti stars [PDF]

open access: yesAstronomy & Astrophysics
Harmonics are a ubiquitous feature across various pulsating stars.\ They are traditionally viewed as mere replicas of the independent primary pulsation modes and have thus been excluded from asteroseismological models.
H. Xue, Jia-Shu Niu
semanticscholar   +1 more source

تقنيات آلة البيانو في المدرسة التجريبية الحديثة والاستفادة منها لدارسي الآلة بكلية التربية الأساسية – دولة الكويت [PDF]

open access: yesالمجلة المصرية للدراسات المتخصصة
من المقررات المدروسة في قسم التربية الموسيقية بكلية التربية الأساسية مقرر ( العزف المنوع - بيانو) والتي تسعى من خلال مقرراتها لتحقيق أهداف العملية التربوية ورغم ذلك فان الدارسين لا يتلقون أي خبرات حول المدارس العزفية وتقنيات العزف الحديثة على ألة البيانو
قيس بدر عبدالله الغانم
doaj   +1 more source

Exciton-driven giant nonlinear overtone signals from buckled hexagonal monolayer GaAs [PDF]

open access: yesPhysical review B, 2019
We report here a giant $\left|{\ensuremath{\chi}}_{baa}^{(2)}\right|=780$ pm/V second harmonic and $\left|{\ensuremath{\chi}}_{aaaa}^{(3)}\right|=1.4\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}17}\phantom{\rule{4pt}{0ex}}{\mathrm{m}}^{2 ...
Himani Mishra, S. Bhattacharya
semanticscholar   +1 more source

High-Stability and Fast Calibration-Free Temperature Measurement Based on Light-Induced Thermoelastic Spectroscopy

open access: yesUltrafast Science
In this paper, a series of calibration-free temperature measurement methods based on light-induced thermoelastic spectroscopy (LITES) are proposed for the first time. These techniques utilize the steady-state and transient response characteristics of the
Xiaonan Liu   +3 more
doaj   +1 more source

Influence of the Molding Technique on the Bell Casting Geometry [PDF]

open access: yesArchives of Foundry Engineering
The influence of the technique used to make the casting mold on the geometry and sound of the bell has been analyzed. The starting point was a CAD model of a bell with a geometry designed to obtain the required overtone frequencies that determine the ...
D. Bartocha   +4 more
doaj   +1 more source

Development of lock-in based overtone modulated MARY spectroscopy for detection of weak magnetic field effects.

open access: yesPhysical Chemistry, Chemical Physics - PCCP, 2020
Modulated magnetically altered reaction yield (ModMARY) spectroscopy is a derivative variant of fluorescence detected magnetic field effect measurement, where the applied magnetic field has both a constant and a modulated component. As in many derivative
Marcin Konowalczyk   +2 more
semanticscholar   +1 more source

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