The Problem of Estimating the Uncertainty of the Fixed Point Temperature Due to the Presence of Impurities

2003 ◽  
Vol 46 (11) ◽  
pp. 1062-1067 ◽  
Author(s):  
Yu. I. Aleksandrov ◽  
A. G. Ivanova
Keyword(s):  
Fixed Point ◽  
Point Temperature

scholarly journals The succinonitrile triple-point standard: a fixed point to improve the accuracy of temperature measurements in the clinical laboratory.

1983 ◽  
Vol 29 (7) ◽  
pp. 1380-1384 ◽  
Author(s):  
B W Mangum
Keyword(s):  
Fixed Point ◽  
Triple Point ◽  
Temperature Scale ◽  
Clinical Laboratory ◽  
Freezing Behavior ◽  
Temperature Measurements ◽  
Point Temperature ◽  
Practical Temperature ◽  
Practical Temperature Scale ◽  
Triple Point Temperature

Abstract In an investigation of the melting and freezing behavior of succinonitrile, the triple-point temperature was determined to be 58.0805 degrees C, with an estimated uncertainty of +/- 0.0015 degrees C relative to the International Practical Temperature Scale of 1968 (IPTS-68). The triple-point temperature of this material is evaluated as a temperature-fixed point, and some clinical laboratory applications of this fixed point are proposed. In conjunction with the gallium and ice points, the availability of succinonitrile permits thermistor thermometers to be calibrated accurately and easily on the IPTS-68.

The Influence of Titanium on the Aluminum Fixed-Point Temperature

2011 ◽  
Vol 32 (7-8) ◽  
pp. 1507-1517 ◽  
Author(s):  
Patchariya Petchpong ◽  
David I. Head
Keyword(s):  
Fixed Point ◽  
Point Temperature

Correlation Between Immersion Profile and Measured Value of Fixed-Point Temperature

2014 ◽  
Vol 35 (3-4) ◽  
pp. 648-656 ◽  
Author(s):  
O. S. Shulgat ◽  
V. M. Fuksov ◽  
A. G. Ivanova ◽  
S. F. Gerasimov ◽  
A. I. Pokhodun
Keyword(s):  
Fixed Point ◽  
Point Temperature ◽  
Immersion Profile

Mental equilibrium: Identifying fixed-point attractors in the stream of thought

2003 ◽  
Author(s):  
Robin R. Vallacher ◽  
Andrzej Nowak ◽  
Matthew Rockloff
Keyword(s):  
Fixed Point

Bifurcation in a Simple Model of the Cardiovascular System

2000 ◽  
Vol 39 (02) ◽  
pp. 118-121 ◽  
Author(s):  
S. Akselrod ◽  
S. Eyal
Keyword(s):  
Nonlinear Dynamics ◽  
Blood Pressure ◽  
Heart Rate ◽  
Fixed Point ◽  
Cardiovascular System ◽  
Modified Model ◽  
Mayer Waves ◽  
Sustained Oscillations ◽  
Human Cardiovascular System ◽  
Physiological Values

Abstract:A simple nonlinear beat-to-beat model of the human cardiovascular system has been studied. The model, introduced by DeBoer et al. was a simplified linearized version. We present a modified model which allows to investigate the nonlinear dynamics of the cardiovascular system. We found that an increase in the -sympathetic gain, via a Hopf bifurcation, leads to sustained oscillations both in heart rate and blood pressure variables at about 0.1 Hz (Mayer waves). Similar oscillations were observed when increasing the -sympathetic gain or decreasing the vagal gain. Further changes of the gains, even beyond reasonable physiological values, did not reveal another bifurcation. The dynamics observed were thus either fixed point or limit cycle. Introducing respiration into the model showed entrainment between the respiration frequency and the Mayer waves.

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