University of Maribor

About: University of Maribor is a education organization based out in Maribor, Slovenia. It is known for research contribution in the topics: Population & KEKB. The organization has 3987 authors who have published 13077 publications receiving 258339 citations. The organization is also known as: Univerza v Mariboru.

Mixed-Integer Nonlinear Programming: A Survey of Algorithms and Applications

Abstract: This paper presents an overview of mixed-integer nonlinear programming techniques by first providing a unified treatment of the Branch and Bound, Outer-Approximation, Generalized Benders and Extended Cutting Plane methods as applied to nonlinear discrete optimization problems that are expressed in algebraic form. The extension of these methods is also considered for logic based representations. Finally, an overview of the applications in many areas in process engineering is presented.

Structural Characteristics of New and Conventional Regenerated Cellulosic Fibers

Abstract: Comparative investigations of the new lyocell and conventional viscose and modal fibers attempt to explain the reasons for differences in the molecular and fine structure of these fibers This research is a systematic analysis of structural characteristics (molecular and fine structure) and their influence on fiber properties The analysis shows that lyocell fibers consist of longer molecules, they have a greater degree of crystallinity, their slighter but rather longer crystallites are oriented in the fiber axis direction, and their void structure is similar to that of viscose fibers Differences in the molecular and fine structure of these fibers cause different mechanical and sorption properties Good mechanical properties are a function of the structure of lyocell fibers, especially with the highest orientation factor and crystallinity index Sorption properties place lyocell fibers somewhere between viscose and modal fibers Our results demonstrate that the adsorption properties of cellulosic fibers depend, except for the less ordered amorphous regions, predominantly on the void fraction

Physical chemistry of encapsulation and release

Abstract: This review describes recently introduced methods of coating colloidal particles and fabrication of hollow multilayer polyelectrolyte capsules. Diffusion through multilayer, Donnan equilibria for ions inside and outside hollow spheres and mechanical properties are given in quantitative aspects.