This paper presents a generation expansion model for the power sector which incorporates several features that make it very interesting for its application to current electricity markets: it considers the possible oligopolistic behavior of firms, and incorporates relevant policy instruments, carbon emissions trading and tradable green certificates. It combines powerful traditional tools related...

The optimal placement and sizing of distributed generators is a classical problem in power distribution networks that usually solved using heuristic algorithms due to its high complexity. This paper proposes different approach based on mixed-integer second-order cone programming (MI-SOCP) model ensures the global optimum relaxed optimization model. Second-order (SOCP) has demonstrated be an eff...

Educational networks and portals are a formation of thematically gathered data on the web. Structure of national educational networks and portals depends on environment of their origin. In the paper, selected educational networks are analysed according to the following criteria: content-services, navigation, search, user interface, help, credibility, validity and target groups. The criteria wer...

A fundamental mathematical problem is to "nd a solution to a square system of nonlinear equations. There are many methods to approach this problem, the most famous of which is Newton's method. In this paper, we describe a generalization of this problem, the complementarity problem. We show how such problems are modeled within the GAMS modeling language and provide details about the PATH solver,...

Abstract The performance of factorial designs is still limited due to some uncertainties that usually intensify process complexities, hence, the need for inter-platform auto-correlation analyses. In this study, capabilities and General Algebraic Modeling System (GAMS) on effects pertinent operating variables in wastewater treatment were compared. Individual combined models implemented GAMS solv...

Generalized additive models (GAMs) are flexible non-linear regression models, which can be fitted efficiently using the approximate Bayesian methods provided by mgcv R package. While GAM based on assumption that response distribution is modeled parametrically, here we discuss more do not entail any parametric assumption. In particular, this article introduces qgam package, an extension of provi...

The adaptation of the most strains of the fungus Lecanicillium muscarium ZARE & GAMS to moderate temperatures and humidity higher 80% as well as the sensitiveness of the spores to UVradiation explains, that the application regime mainly takes place under protected conditions in greenhouses. Laboratory trials with a very effective strain for the use as biological control agent (strain V24, secti...

Extended mathematical programs are collections of functions and variables joined together using specific optimization and complementarity primitives. This paper outlines a mechanism to describe such an extended mathematical program by means of annotating the existing relationships within a model to facilitate higher level structure identification. The structures, which often involve constraints...

This paper presents a systematic computer aided technique to design a sustainable (safe, environmentally friendly and economical) tailor-made “green diesel” blend that satisfies a set of desirable target properties. In this work, the software, Integrated Computer Aided System (ICAS) was used to predict the green diesel properties. The blending model is formulated to identify a set of feasible m...

This paper presented a mixed integer programming for integrated scheduling and process planning. The presented process plan included some orders with precedence relations similar to Multiple Traveling Salesman Problem (MTSP), which was categorized as an NP-hard problem. These types of problems are also called advanced planning because of simultaneously determining the appropriate sequence and m...