The Frumkin or Fowler–Guggenheim isotherm, which has three fitting parameters, is often converted to a linear form with two parameters facilitate parameter estimation by regression. This conversion made possible way of replacing the unknown capacity isotherm surrogate value. certain simple isotherms (e.g., Dubinin–Radushkevich) are used as surrogates. However, such surrogates have never been ev...

This work presents an open-source code, FEgen, that generates initial field emission distributions based on the time-dependent Fowler–Nordheim equation. Current in-demand and beam tracking software—such as ASTRA, IMPACT-T, GPT—do not contain native distribution generator functions suitable for emitted electron phase space analysis. The intuitive graphical user interface of FEgen input files sho...

Abstract In this paper, we study the oscillation of a class third-order Emden–Fowler delay dynamic equations with sublinear neutral terms on time scales. By using Riccati transformation and integral inequality, establish several new theorems to ensure that each solution equation oscillates or asymptotically approaches zero, results in literature are supplemented extended. Examples given illustr...

Field emission data are often represented on a Fowler–Nordheim plot but new empirical equation has been recently proposed to better analyze experiments. Such an is based approximations of the Murphy and Good model predicts that constant parameter ?, depending only work function emitter, can be extracted from data. We compared this with simulations in order determine range validity robustness re...