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21 980 (0,104s)

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Modified Arrhenius Equation in Materials Science, Chemistry and Biology

The Arrhenius plot (logarithmic plot vs. inverse temperature) is represented by a straight line if the Arrhenius equation holds. A curved Arrhenius plot (mostly concave modifications of the Arrhenius e...

Chemical sciences

  • 2021
  • Jimp
  • Link
Result

Activation energy of limestone decomposition and its coherence with other limestone properties

The velocity of decomposition of limestone samples were determined by DTA using constant temperature. The dependence of decomposition velocity vs. temperature is described by Arrhenius?s equation. Velocity constants for various temp...

JN - Stavebnictví

  • 2010
  • O
Result

Mathematical Model of the Low-Temperature Oxidation of Coal in Coal Stockpiles and Dumps

are solved as source terms in transport equations. The rate constant defines by Arrhenius expression. Parameters of Arrhenius equation (activation energy and pre-exponential......

BK - Mechanika tekutin

  • 2011
  • D
Result

Application of the Arrhenius equation for verification of the lifetime of cable sheath based on the mechanical properties

This paper deals with the verification of polymer materials lifetime using method of accelerated thermal ageing. The experiment is based on the Arrhenius methodology and testing of mechanical properties. The experiment verifies lifetime of p...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2014
  • O
Result

Dependence of steady-state creep rate on temperature and applied stress expressed by equation with clear geometrical explication

to the Arrhenius equation and its increase with applied stress is mostly described by the power of the variables. An equation respecting these experimental facts and simultaneously also based of the Arrhenius ...

JG - Hutnictví, kovové materiály

  • 2010
  • D
Result

Modelling of changes in properties of alloys at elevated temperatures

Arrhenius equation. the processes can be modelled using the same type of kinetic equations. Instead of the most frequently used JMAK equation the equations better expressing the processes proceeding......

JG - Hutnictví, kovové materiály

  • 2007
  • Jx
Result

Assessing the reliability of electrical insulating materials using accelerated againg tests

The paper summarizes the theoretical background of the accelerated aging test method of electrical insulating materials and its reliability by using the Arrhenius approach. Arrhenius equation presents generally accepted pra...

Electrical and electronic engineering

  • 2020
  • D
  • Link
Result

Identification of Arrhenius equation parameters for control purposes

. The second dependence is described by Arrhenius equation. Knowledge of the Arrhenius equation parameters is a key for correct mathematical model composition and also......

BC - Teorie a systémy řízení

  • 2011
  • D
Result

Energy of decomposition of various sorts of limestone determining

The velocity of decomposition of limestone samples were studied by DTA using constant temperature for heating. The parameters of Arrhenius?s equation were calculated from the course of decomposition reactions. Method of the least sq...

JN - Stavebnictví

  • 2010
  • O
Result

Arrhenius equation parameters identification from temperature profiles

The article describes an alternative method of determining the rate constants for chemical reactions of first order. Specifically, the determination of Arrhenius equation parameters, ie activation energy and pre-exponential factor f...

BC - Teorie a systémy řízení

  • 2011
  • D
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