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Title of Journal: Granular Matter

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Abbravation: Granular Matter

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Springer Berlin Heidelberg

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DOI

10.1007/978-3-658-11198-4_1

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1434-7636

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Particle characterization using THz spectroscopy

Authors: Philip Born Karsten Holldack Matthias Sperl
Publish Date: 2015/07/30
Volume: 17, Issue: 5, Pages: 531-536
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Abstract

THz extinction spectroscopy extends UV–Vis and NIRspectroscopy to characterize particles from fine powders and dust to sand grains and granulated materials We extract particle sizes from the spectral position of the first peak of the interference structure and size distributions from the visibility of the fine ripple structure in the measured extinction spectra As such we can demonstrate a route for a quick determination of these parameters from single measurementsThe authors thank R Bittl FU Berlin and A Schnegg HZB for permitting measurements at the FTIRinstrument D Ponwitz for technical support at the beamline as well as Boris Eberhard Peidong Yu and Zach Evenson for the help with the measurements during the beamtime Philip Born thanks Andreas Meyer for his continued support of the project

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Other Papers In This Journal:
  1. Arching effect on lateral pressure of confined granular material: numerical and theoretical analysis
  2. FE-studies on Shear Localization in an Anistropic Micro-polar Hypoplastic Granular Material
  3. Discrete Element Method Analysis of Railtrack Ballast Degradation during Cyclic Loading
  4. Modeling the transition between stable and unstable operation while emptying a silo
  5. Numerical simulation of particle flow in a sand trap
  6. The behaviour of water-immersed glass-bronze particulate systems under vertical vibration
  7. Modelling and analysis of heat transfer through 1D complex granular system
  8. Living quicksand
  9. Mesoscale simulation of clay aggregate formation and mechanical properties
  10. DEM simulation of particle attrition in dilute-phase pneumatic conveying
  11. Effects of triaxial confining pressure and strain rate on stick-slip behavior of a dry granular material
  12. Absence of ‘fragility’ and mechanical response of jammed granular materials
  13. A new method for the analysis of compaction processes in high-porosity agglomerates
  14. A new method for the analysis of compaction processes in high-porosity agglomerates
  15. An algorithm to generate random dense arrangements for discrete element simulations of granular assemblies
  16. DEM simulation of the packing structure and wall load in a 2-dimensional silo
  17. The critical-state yield stress (termination locus) of adhesive powders from a single numerical experiment
  18. Application of the theory of Markov chains to model heat and mass transfer between stochastically moving particulate and gas flows
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