Application of a current-time function of the form to hemispherical microelectrodes

1997 ◽  
Vol 428 (1-2) ◽  
pp. 173-183 ◽  
Author(s):  
Angela Molina ◽  
Joaquín González
Keyword(s):  
Time Function ◽  
Current Time ◽  
A Current

Regeneration Mechanism Studied by Potential-Time Response to Sinusoidal Current-Time Function

1997 ◽  
Vol 62 (10) ◽  
pp. 1511-1526
Author(s):  
María-Luisa Alcaraz ◽  
Ángela Molina
Keyword(s):  
Kinetic Parameters ◽  
Rate Constant ◽  
Theoretical Study ◽  
Time Function ◽  
Time Response ◽  
Current Time ◽  
Regeneration Mechanism ◽  
Sinusoidal Current ◽  
Regeneration Processes

A theoretical study of the potential-time response to sinusoidal current applied to static and dynamic electrodes for regeneration processes is presented. Methods for determination of the regeneration fraction, rate constant of the chemical reaction and heterogeneous kinetic parameters are proposed.

scholarly journals Analysis of a Four-Firm Competition Based on a Generalized Bounded Rationality and Different Mechanisms

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
S. S. Askar ◽  
A. Al-khedhairi
Keyword(s):  
Bounded Rationality ◽  
Economic Model ◽  
Complex Behavior ◽  
Bifurcation And Chaos ◽  
Current Time ◽  
Firm Competition ◽  
Proposed Model ◽  
Fractional Orders ◽  
A Current ◽  
Memory Parameter

In this paper, the Caputo derivative with fractional orders is suggested to model a competition among four competing firms. The proposed economic model that describes this competition is constructed based on a generalization of the traditional bounded rationality. In this generalization, we study the influence of memory parameter on the complex behavior of the model. Memory means that we not only take into account the changes in quantities at a current time, but also study the changes occurring in the quantities during an interval of time. For simplicity, it is assumed that the degree of memory is described by one parameter during that interval. The properties of the proposed model such as stability of equilibria, bifurcation, and chaos are studied. Furthermore, we introduce and study the cooperation that may take place among the four firms using Keeney-Raiffa approach.

Assistive Technology For Night Blind Tourist

2014 ◽  
Vol 6 (4) ◽  
pp. 43-65 ◽  
Author(s):  
ObaidUllah Owais Khan ◽  
Kamran Ahsan ◽  
Abdul Salam
Keyword(s):  
Mobile Technology ◽  
Mobile Applications ◽  
Mobile Application ◽  
Time Function ◽  
Current Time ◽  
Safe Place ◽  
Application Model ◽  
The Difference ◽  
User Location ◽  
Application Module

Tourism is one of the largest growing industry worldwide. A tourist will naturally keep on travelling to different countries and sub-continents. Several researchers have addressed and proposed Mobile applications to facilitate Tourist and Tourismin different areas. A Mobile application to assist nightblind tourist is still one of the unaddressed issues by the researchers. This paper proposes a Mobile application model for the Tourist who facesdifficulty in vision during dark times, referred to as night blindness. The proposed application model is based on the difference of current time with sunset time. The application module uses mobile technology and difference of time function to proactively alert the night blind tourist to reach its safe place or destination before sunset. This model also provides an alternate path and distance with respect to time and user location. This proposed mobile application is very useful for the apprehensive night blind tourist who feels fear in travelling during the close of day times.

Chronopotentiometry at the DME with a current-time perturbation of the form I0(t1+t)w, t1 being a preceding blank perio

1988 ◽  
Vol 252 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Angela Molina ◽  
Manuela Lopez-Tenes ◽  
Jose Albaladejo ◽  
Francisco Martinez-Ortiz
Keyword(s):  
Current Time ◽  
A Current

scholarly journals General quantum-mechanical setting for field–antifield formalism as a hyper-gauge theory

2016 ◽  
Vol 31 (30) ◽  
pp. 1650167 ◽  
Author(s):  
Igor A. Batalin ◽  
Peter M. Lavrov
Keyword(s):  
Gauge Theory ◽  
Path Integral ◽  
Type Equation ◽  
Quantum Evolution ◽  
Quantum Mechanical ◽  
Delta Operator ◽  
Current Time ◽  
General Quantum ◽  
Initial Wave Function ◽  
A Current

A general quantum-mechanical setting is proposed for the field–antifield formalism as a unique hyper-gauge theory in the field–antifield space. We formulate a Schrödinger-type equation to describe the quantum evolution in a “current time” purely formal in its nature. The corresponding Hamiltonian is defined in the form of a supercommutator of the delta-operator with a hyper-gauge fermion. The initial wave function is restricted to be annihilated with the delta-operator. The Schrödinger’s equation is resolved in a closed form of the path integral, whose action contains the symmetric Weyl’s symbol of the Hamiltonian. We take the path integral explicitly in the case of a hyper-gauge fermion being an arbitrary function rather than an operator.

Self-Heating of 4H-SiC PiN Diodes at High Current Densities

2008 ◽  
Vol 600-603 ◽  
pp. 1007-1010
Author(s):  
Michael E. Levinshtein ◽  
Tigran T. Mnatsakanov ◽  
Pavel A. Ivanov ◽  
John W. Palmour ◽  
Mrinal K. Das ◽  
...  
Keyword(s):  
Current Density ◽  
Dynamic Instability ◽  
Single Pulse ◽  
Pin Diodes ◽  
Current Time ◽  
Self Heating ◽  
Current Voltage ◽  
Current Densities ◽  
Current Voltage Characteristics ◽  
A Current

Self-heating in high-voltage 4H-SiC PiN diodes has been studied experimentally and theoretically in dc and 8-ms single pulse modes. To simulate the self-heating, an electro-thermal model was used to calculate non-isothermal current-voltage characteristics at dc and current-time dependences at pulsed measurements. The dynamic instability of N-type was observed: the current decreases in spite of increasing of bias applied to the structure. At dc, irreversible diode degradation was found to occur at a current density of about 1700 A/cm2. Under a single current surge 8-ms pulse, the loss of thermal stability has been found at a current density of approximately 9000 A/cm2. Comparison of experimental data and simulations showed that the local temperature in the diode base at the end of the 8-ms, 9000-A/cm2 pulse reaches 2000 – 2300 K.

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