scholarly journals Discussion: “Calibration Techniques in Ultrahigh-Pressure Apparatus” (Bundy, F. P., 1961, ASME J. Eng. Ind., 83, pp. 207–213)

1961 ◽  
Vol 83 (2) ◽  
pp. 213-213
Author(s):  
Phillip N. LaMori
Keyword(s):  
Ultrahigh Pressure ◽  
Calibration Techniques

Calibration Techniques in Ultrahigh-Pressure Apparatus

1961 ◽  
Vol 83 (2) ◽  
pp. 207-213 ◽  
Author(s):  
F. P. Bundy
Keyword(s):  
Temperature Sensing ◽  
Ultrahigh Pressure ◽  
Temperature Calibration ◽  
Absolute Accuracy ◽  
Effect Of Pressure ◽  
Pressure Calibration ◽  
Theoretical Predictions ◽  
Calibration Techniques

Pressure and temperature calibration of ultrahigh-pressure apparatus is described. Pressure calibration up to 30 kilobars has been established accurately. Above this pressures are not known with sufficient absolute accuracy to compare results reliably with theoretical predictions of behavior of matter. The effect of pressure on temperature-sensing devices, like thermocouples, have been measured over temperature intervals of 100 deg C up to pressures of the order of 100 kilobars. The effect on some thermocouples is appreciable.

Analysis of Squalene and Its Transformation By-Products in Latent Fingermarks by Ultrahigh-Pressure Liquid Chromatography-High Resolution Accurate Mass Orbitrap™ Mass Spectrometry

2019 ◽  
Author(s):  
Buddhika Dorakumbura ◽  
Francesco Busetti ◽  
Simon Lewis
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
High Resolution ◽  
Storage Conditions ◽  
Ultrahigh Pressure ◽  
Accurate Mass ◽  
Rational Approach ◽  
By Products ◽  
Over Time ◽  
High Resolution Accurate Mass

<p>Transformation of squalene and its by-products in fingermarks over time under different storage conditions (light, dark and underwater) was examined through ultrahigh-pressure liquid chromatography high resolution accurate mass Orbitrap™ mass spectrometry. Complications of assessing fingermark compositional variation over time using multiple samples with varying initial compositions were elucidated and a more rational approach was successfully demonstrated. Squalene was detected in all fresh natural fingermarks and the amount ranged between 0.20 to 11.32 μg/5 fingertips. A notable difference in the transformation of squalene was observed with different storage conditions, where a dark aquatic environment accelerated degradation of squalene compared to dark but dry conditions. Squalene monohydroperoxide was extremely short-lived in natural deposits while the amount of squalene epoxide was still increasing relative to the initial amount, after ageing under dark and aquatic conditions for up to 7 days. Some oxidation by-products of cholesterol were also tentatively identified, which exhibited a growth over time against their initial concentration under any of the storage condition tested. These by-products, therefore, show potential as biomarkers for targeted visualisation of aged deposits.</p>

Ultrahigh-Pressure Angioplasty versus the Peripheral Cutting Balloon™ for Treatment of Stenoses in Autogenous Fistulas: Comparison of Immediate Results

2010 ◽  
Vol 11 (4) ◽  
pp. 303-311 ◽  
Author(s):  
Sanjoy Kundu ◽  
Rick Clemens ◽  
Jonathan Aziza ◽  
Paul Tam ◽  
Gordon Nagai ◽  
...  
Keyword(s):  
Ultrahigh Pressure ◽  
Cutting Balloon

A comparison of various calibration techniques applied to the ninhydrin-cefoxitin determination

1996 ◽  
Vol 334 (1-2) ◽  
pp. 199-208 ◽  
Author(s):  
Pilar Campíns-Falcó ◽  
Adela Sevillano-Cabeza ◽  
Luisa Gallo-Martinez ◽  
Francisco Bosch-Reig
Keyword(s):  
Calibration Techniques

The ultrahigh pressure stability of silver: An experimental and theoretical study

2021 ◽  
Vol 129 (12) ◽  
pp. 125901
Author(s):  
E. F. O’Bannon ◽  
M. J. Lipp ◽  
J. S. Smith ◽  
Y. Meng ◽  
P. Söderlind ◽  
...  
Keyword(s):  
Theoretical Study ◽  
Ultrahigh Pressure ◽  
Pressure Stability
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