Direct determination of the absorption of porous silicon by photocurrent measurement at low temperature

2000 ◽  
Vol 366 (1-2) ◽  
pp. 216-224 ◽  
Author(s):  
G Lérondel ◽  
F Madéore ◽  
R Romestain ◽  
F Muller
Keyword(s):  
Porous Silicon ◽  
Low Temperature ◽  
Direct Determination ◽  
Photocurrent Measurement

Direct determination of tautomerism in purine derivatives by low-temperature NMR spectroscopy

2004 ◽  
Vol 45 (33) ◽  
pp. 6259-6263 ◽  
Author(s):  
Pavlı́na Sečkářová ◽  
Radek Marek ◽  
Kateřina Maliňáková ◽  
Erkki Kolehmainen ◽  
Dana Hocková ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Low Temperature ◽  
Direct Determination ◽  
Purine Derivatives

Direct determination of grain sizes, lattice parameters, and mismatch of porous silicon

2002 ◽  
Vol 81 (1) ◽  
pp. 25-27 ◽  
Author(s):  
R. J. Martı́n-Palma ◽  
L. Pascual ◽  
P. Herrero ◽  
J. M. Martı́nez-Duart
Keyword(s):  
Porous Silicon ◽  
Direct Determination ◽  
Lattice Parameters ◽  
Grain Sizes

The Direct Determination of I131 in Heterogeneous Fecal Specimens

1961 ◽  
Vol 41 (4) ◽  
pp. 380-384 ◽  
Author(s):  
Arthur F. Dratz ◽  
James C. Coberly
Keyword(s):  
Direct Determination

A New Method for Direct Determination of the Recoilless Fraction with Application to Magnetic Nanoparticles

2002 ◽  
Vol 721 ◽  
Author(s):  
Monica Sorescu
Keyword(s):  
Room Temperature ◽  
Average Particle Size ◽  
Direct Determination ◽  
Average Particle ◽  
Lattice Method ◽  
Recoilless Fraction ◽  
Single Room ◽  
Magnetite Particles ◽  
Physical Mixtures

AbstractWe propose a two-lattice method for direct determination of the recoilless fraction using a single room-temperature transmission Mössbauer measurement. The method is first demonstrated for the case of iron and metallic glass two-foil system and is next generalized for the case of physical mixtures of two powders. We further apply this method to determine the recoilless fraction of hematite and magnetite particles. Finally, we provide direct measurement of the recoilless fraction in nanohematite and nanomagnetite with an average particle size of 19 nm.

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