Increasing concerns about energy and emissions from fuel consumption in gas turbines has attracted many researchers to protect the environment and reduce pollutants in the world. The main objective of this paper is to investigate the increasing efficiency of three-stroke gas turbine operation based on the technical analysis of the operation of three-axis gas turbine cycles with non-design condi...

Hiring committees address the glut of highly qualified applicants for faculty positions by experimenting with new evaluation methods and adapting their expectations for today's increasingly competitive academic environment.

This brief survey gives a (roughly) self-contained overview of some complexity theoretic results about semi-algebraic proof systems and related hierarchies and the strong connections between them. The article is not intended to be a detailed survey on “Lift and Project” type optimization hierarchies (cf. Chlamtac and Tulsiani [12]) or related proof systems (cf. Grigoriev et al. [16]).

Algebraic Methods for Integer Programming Introduction by the Guest Editor Karen Aardal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Second Generation Lift-And-Project Algorithms Daniel Bienstock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Short Rational Generating Functions and Their Applications to Integer Programming Kevin Woods and Ruriko Yos...