A First-order Complex Filter Realized by Using a Voltage Follower

2019 ◽  
Author(s):  
Tatsuya Fujii ◽  
Kohsei Araki ◽  
Kazuhiro Shouno
Keyword(s):  
Order Complex ◽  
First Order ◽  
Complex Filter ◽  
Voltage Follower

scholarly journals Stability Switches in a First-Order Complex Neutral Delay Equation

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
M. Roales ◽  
F. Rodríguez
Keyword(s):  
Delay Equation ◽  
Order Complex ◽  
Stability Switches ◽  
Neutral Delay ◽  
First Order ◽  
Complex Coefficients

Stability of the first-order neutral delay equationx′(t)+ax′(t−τ)=bx(t)+cx(t−τ)with complex coefficients is studied, by analyzing the existence of stability switches.

Kinetics of Oxidation of Columbium And Other Refractory Metals★

CORROSION ◽  
1962 ◽  
Vol 18 (10) ◽  
pp. 382t-389t ◽  
Author(s):  
J. N. ONG ◽  
W. M. FASSELL
Keyword(s):  
Phase Boundary ◽  
Nucleation And Growth ◽  
Rate Equations ◽  
Order Complex ◽  
Two Phase ◽  
Kinetics Of Oxidation ◽  
Chain Reactions ◽  
First Order ◽  
Consecutive Reactions ◽  
Kinetics Of

Abstract The oxidation of tungsten and molybdenum occurs by two consecutive reactions, forming first a suboxide then the trioxide. Tantalum and columbium oxidize by four simultaneous reactions: solution of oxygen in the metal, nucleation and growth of a suboxide phase at the metal surface and two phase boundary processes giving rise to two different modifications of the pentoxide. By assuming that all reactions are first order complex chain reactions, rate equations are formulated giving the rate of oxidation as a function of pressure, temperature and time. Regression rate expressions for the metals tungsten, tantalum and columbium above 700 C are given as;; and, respectively. The rate is expressed in cm/hr, T is in degrees K and Po2 in atmospheres pressure of oxygen. 3.8.4, 2.1,1, 6.3.5, 6.3.16, 6.3.13

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