Results 1 to 10 of about 580,177 (156)

The Positronium state in quartz [PDF]

open access: yesphysica status solidi c, 2009
The positronium state in quartz is described by a linear superposition of two states: the first describing the free positron in the crystal and the second corresponding to a positronium Bloch wavefunction in the lattice.
Barbiellini, B., Platzman, P. M.
core   +3 more sources

Quartz Glass [PDF]

open access: yesScience, 1906
n ...
Day, A. L., Shepherd, E. S.
openaire   +2 more sources

From cognitive science to cognitive neuroscience to neuroeconomics [PDF]

open access: yes, 2008
As an emerging discipline, neuroeconomics faces considerable methodological and practical challenges. In this paper, I suggest that these challenges can be understood by exploring the similarities and dissimilarities between the emergence of ...
Quartz, Steven R.
core   +1 more source

Vertical Resolved Dust Mass Concentration and Backscatter Coefficient Retrieval of Asian Dust Plume Using Quartz Raman Channel in Lidar Measurements [PDF]

open access: yes, 2016
In this work, we present a method for estimating vertical resolved mass concentration of dust immersed in Asian dust plume using Raman scattering of quartz (silicon dioxide, silica).
Andreae   +16 more
core   +2 more sources

Modelling the reduction of quartz in a quartz–carbon pellet

open access: yesJournal of Engineering Mathematics, 2023
AbstractTraditional refining of silicon generates carbon dioxide emissions that are released into the atmosphere. An alternative process under experimental exploration uses quartz particles coated in a layer of porous carbon as the raw material, instead of lumps of quartz and carbon.
Metherall, B   +4 more
openaire   +1 more source

Relationship between Degree of Deformation in Quartz and Silica Dissolution for the Development of Alkali-Silica Reaction in Concrete. [PDF]

open access: yes, 2017
This paper presents research on the influence of quartz deformation in aggregates for the development of the alkali-silica reaction in concrete and its relationship with silica dissolution.
Dal Molin, Denise   +4 more
core   +1 more source

Coming to Terms Will Do It: Students Engaging With Climate Change Through Sensemaking and Collective Efficacy Perceptions [PDF]

open access: yes, 2022
Within climate change instruction, effective instructional crisis communication is necessary to attain cognitive, affective, and behavioral learning outcomes so students comprehensively learn the reality and implications of this planetary crisis.
Quartz, Sean
core   +2 more sources

Probing viscoelastic properties of a thin polymer film sheared between a beads layer and quartz crystal resonator [PDF]

open access: yes, 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

Second-harmonic phonon spectroscopy of $\alpha$-quartz [PDF]

open access: yes, 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

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