Sensors, 2022 This work proposes a new compact triple-band triangular patch antenna for RF energy harvesting applications in IoT devices. It is realized on Teflon glass substrate with a thickness of 0.67 mm and a relative permittivity of 2.1.
Chemseddine Benkalfate +3 more
doaj +1 more source
Probing viscoelastic properties of a thin polymer film sheared between a beads layer and quartz crystal resonator [PDF]
, 2009 We report measurements of viscoelastic properties of thin polymer films of 10-100 nm at the MHz range. These thin films are confined between a quartz crystal resonator and a millimetric bead layer, producing an increase of both resonance frequency and ...
Ballantine D. S. +4 more
core +3 more sources
The preservation of quartz grain surface textures following vehicle fire and their use in forensic enquiry [PDF]
, 2008 During a terrorist trial, dispute arose as to whether the temperature produced in a car fire was sufficient to destroy quartz grain surface textures.
Bull, PA +5 more
core +1 more source
Deformation mechanisms leading to auxetic behaviour in the α-cristobalite and α-quartz structures of both silica and germania [PDF]
, 2008 Analytical expressions have been developed in which the elastic behaviour of the α-quartz and α-cristobalite molecular tetrahedral frameworks of both silica and germania are modelled by rotation, or dilation or concurrent rotation and dilation of the ...
Alderson, Andrew, Evans, K E
core +1 more source
Express method for contactless measurement of parameters of thermoelectric materials
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2015 The paper presents an original method for contactless express measurement of parameters of thermoelectric materials. The presence of a combination of AC and DC magnetic fields in the gap of the oscillating circuit, where the monitored sample of the ...
A. A. Ashcheulov +2 more
doaj +1 more source
Mathematical Analysis of a Thermostatted Equation with a Discrete Real Activity Variable
Mathematics, 2020 This paper deals with the mathematical analysis of a thermostatted kinetic theory equation. Specifically, the assumption on the domain of the activity variable is relaxed allowing for the discrete activity to attain real values.
Carlo Bianca, Marco Menale
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Second-harmonic phonon spectroscopy of $\alpha$-quartz [PDF]
, 2018 We demonstrate midinfrared second-harmonic generation as a highly sensitive phonon spectroscopy technique that we exemplify using $\alpha$-quartz (SiO$_2$) as a model system.
Gewinner, Sandy +4 more
core +3 more sources
Applied Sciences, 2022 In recent decades, there has been a significant increase in systems’ complexity, leading to a rise in the need for more and more models. Models created with different intents are written using different formalisms and give diverse system representations.
Julien Vidalie +3 more
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MINERAL FORMATION CONDITIONS IN ACID MAGMATIC SYSTEMS RELATED TO THE FORMATION OF MASSIVE SULFIDE DEPOSITS OF THE URALS AND ALTAI-SAYANY AREA [PDF]
Минералогия, 2021 Studies of melt inclusions in quartz indicate the similarity of acid magmatic systems of massive sulfide deposits in the Urals and Altai-Sayany region.
V.A. Simonov +2 more
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Combining Classifiers for Delineation of Raining Cloud over North Algeria and Mediterranean Sea [PDF]
E3S Web of ConferencesIn this paper, we presented the application of the classifier combination technique to classify cloud systems, namely stratiform and convective systems.
Bensafi Noureddine +4 more
doaj +1 more source