Results 81 to 90 of about 176,371 (204)

Prediction of alpaca fibre quality by near-infrared reflectance spectroscopy

open access: yesAnimal, 2013
Rapid and efficient methods to evaluate variables associated with fibre quality are essential in animal breeding programs and fibre trade. Near-infrared reflectance spectroscopy (NIRS) combined with multivariate analysis was evaluated to predict textile ...
A.W. Canaza-Cayo, D. Alomar, E. Quispe
doaj   +1 more source

Determination of Copper(II) Ions by Diffuse Reflectance Spectroscopy Method

open access: yesТонкие химические технологии, 2019
A method for copper(II) determination based on copper(II) ions interaction with the organic reagent picramine-ε, concentrating the formed complex on a solid-phase matrix and recording diffuse reflectance spectroscopy spectra by a portable combined LED ...
I. I. Kuzmin   +4 more
doaj   +1 more source

REMOTE SENSING OF FOLIAR NITROGEN IN CULTIVATED GRASSLANDS OF HUMAN DOMINATED LANDSCAPES [PDF]

open access: yes, 2015
Foliar nitrogen (N) concentration of plant canopies plays a central role in a number of important ecosystem processes and continues to be an active subject in the field of remote sensing.
Pellissier, Paul Adam
core   +1 more source

Detection and correction of the misplacement error in THz Spectroscopy by application of singly subtractive Kramers-Kronig relations

open access: yes, 2005
In THz reflection spectroscopy the complex permittivity of an opaque medium is determined on the basis of the amplitude and of the phase of the reflected wave. There is usually a problem of phase error due to misplacement of the reference sample.
H. M. Nussenzveig   +11 more
core   +1 more source

Biocompatible materials based on synthetic apatites co-doped with silver and lutetium ions

open access: yesMoldavian Journal of the Physical Sciences, 2009
Apatite based (CaHap and CaFap) materials were synthesized by saline–melt method at moderate temperature. Their structure and composition have been studied by X-ray phase analysis (XRPA) and IR spectroscopy of diffuse reflectance.
Zinchenko, V.   +2 more
doaj  

Spectroscopic analysis of Pu-bearing compounds in double-walled cells

open access: yesFrontiers in Nuclear Engineering
Spectroscopic analysis of radiological materials has been historically limited to radiological labs with older or less advanced scientific instrumentation. The development of double-walled cells (DWCs) at the Savannah River National Laboratory (SRNL) has
Eliel Villa-Aleman   +5 more
doaj   +1 more source

L'authentification rapide des poulets de chair sous label: distinction entre poulets issus de souches à croissance lente ou rapide par la spectrometrie dans le proche infrarouge. Analytical methods for the authentification of agro-food products. Gembloux (Belgium). 20 Oct 1999 [PDF]

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2000
Rapid authentification of certified chicken meat: distinguishing slow and fast growing chicken strains using near infrared reflectance spectroscopy.
Fumiere O., Sinnaeve G., Dardenne P.
doaj  

Optical Characterisation of MOVPE Grown Vertically Correlated InAs/GaAs Quantum Dots

open access: yes, 2006
Structures with self-organised InAs quantum dots in a GaAs matrix were grown by the low pressure metal-organic vapour phase epitaxy (LP-MOVPE) technique.
Hazdra, P.   +6 more
core  

Electronic structures of hexagonal RMnO3 (R = Gd, Tb, Dy, and Ho) thin films

open access: yes, 2007
We investigated the electronic structure of multiferroic hexagonal RMnO3 (R = Gd, Tb, Dy, and Ho) thin films using both optical spectroscopy and first-principles calculations.
C. Degenhardt   +12 more
core   +1 more source

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