Neutral mass density measurements in a repetitively pulsed coaxial plasma accelerator.

AIAA Journal ◽  
1966 ◽  
Vol 4 (8) ◽  
pp. 1366-1370 ◽  
Author(s):  
T. KARRAS ◽  
B. GOROWITZ ◽  
P. GLOERSEN
Keyword(s):  
Mass Density ◽  
Plasma Accelerator ◽  
Density Measurements

scholarly journals Resonant Steel Tuning Forks for Precise Inline Viscosity and Mass Density Measurements in Harsh Environments

2014 ◽  
Vol 87 ◽  
pp. 1139-1142 ◽  
Author(s):  
Martin Heinisch ◽  
Ali Abdallah ◽  
Isabelle Dufour ◽  
Bernhard Jakoby
Keyword(s):  
Mass Density ◽  
Harsh Environments ◽  
Density Measurements ◽  
Tuning Forks

Method of high-precision microsample blood and plasma mass densitometry

1986 ◽  
Vol 60 (3) ◽  
pp. 1082-1088 ◽  
Author(s):  
H. Hinghofer-Szalkay
Keyword(s):  
Measurement Errors ◽  
Biological Fluids ◽  
Mass Density ◽  
Hemoglobin Concentration ◽  
Small Samples ◽  
Mean Corpuscular Hemoglobin ◽  
Plasma Protein Concentration ◽  
Density Measurements ◽  
Accuracy And Precision ◽  
Erythrocyte Density

The reliability of the mechanical oscillator technique (MOT) for blood and plasma mass density measurements on small samples is quantified in this paper. Sources of measurement errors that can reduce both the accuracy and precision of density determinations include storage of plasma samples, inhomogeneity of blood samples, and density reading before adequate temperature equilibration. Measurements on fractions from identical samples and repeated samplings from test subjects under steady-state conditions revealed a 10(-2) g/l reproducibility of density readings. The mean plasma density (PD) readings did not change significantly after up to 1-wk storage at +4 degrees C or up to 2 mo storage at -20 degrees C. The variability of the PD findings increased with storage time and were generally higher with storage at -20 degrees C, compared with +4 degrees C. Densitometers of different sizes were used to evaluate rheological influences on blood density (BD) readings. Linear correlations between PD and plasma protein concentration, between BD and blood hemoglobin concentration, and between erythrocyte density and mean corpuscular hemoglobin concentration were significant (P less than 0.001). Rapid density measurements with up to 10(-2) g/l reliability on small (less than 0.1 ml) volumes of biological fluids and continuous blood densitometry can be performed with use of the MOT.

Study of H-D Substitution in TSCC Single Crystals by Mass Density Measurements

1986 ◽  
Vol 21 (7) ◽  
pp. K115-K118
Author(s):  
G. Klöss ◽  
M. K. Gergs ◽  
H. Schlemmbach
Keyword(s):  
Single Crystals ◽  
Mass Density ◽  
Density Measurements

scholarly journals Predicting storm-time thermospheric mass density variations at CHAMP and GRACE altitudes

2011 ◽  
Vol 29 (3) ◽  
pp. 443-453 ◽  
Author(s):  
R. Liu ◽  
S.-Y. Ma ◽  
H. Lühr
Keyword(s):  
Solar Wind ◽  
Electric Field ◽  
Prediction Model ◽  
Geomagnetic Storms ◽  
Mass Density ◽  
Density Measurements ◽  
Time Prediction ◽  
Different Altitudes

Abstract. Orbit-averaged mass density measurements derived from the satellites CHAMP and GRACE are used to investigate the storm-time prediction model developed by Liu et al. (2010) at different altitudes. This model uses as input only the solar wind merging electric field. From 2002 to 2005 in total 31 major geomagnetic storms with minimum Dst

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