1. STACK-BASED GENETIC PROGRAMMING Genetic Programming, or GP, has traditionally used tree-based techniques for representation and reproduction. The most widely used crossover method is subtree crossover, and the majority of the alternatives in published literature are variants thereof. However, if the trees are manipulated in their prefix or postfix form, other approaches exist that preserve t...

Conceptual design of a waste heat recovery cycle is carried out in attempt to enhance the thermal efficiency of a steam power plant. In the recovery system, super-critical an CO2 is employed as the working fluid operating in a Brayton cycle. Low grade heat rejected by the flue gases through the stack is used as the primary heat source, while a secondary heat exchanger utilizes th...

Many low-level runtime engines and virtual machines are stack based instructions take parameters from the stack and leave their results on the stack. Stack language is a common name for several languages used to program stack based (virtual) machines like CLR, JVM, Forth, Postscript, etc. We chose the Forth language as an example to represent the class of stack languages, partially because this...

We study sorting machines consisting of a stack and a pop stack in series, with or without a queue between them. While there are, a priori, four such machines, only two are essentially different: a pop stack followed directly by a stack, and a pop stack followed by a queue and then by a stack. In the former case, we obtain complete answers for the basis and enumeration of the sortable permutati...