Pansy (Viola × wittrockiana Gams.) is an important and attractive ornamental plant with a wide variety of flower colors. To date, the molecular genetic understanding its colorful petal pigment patterns remains largely unknown. In this study, we analyzed bicolor petals “Mengdie” in cytological, physiological, transcriptomic aspects. Results showed that difference colors was mainly determined by ...

The paper describes a new computerized collection of test models for mixed-integer nonlinear programming. Since there is no standard format for nonlinear models, the model collection is augmented with a translation server that can transform the models from their basic GAMS format into a number of other formats such as AMPL, BARON, LINGO, and MINOPT. The translation server can also be used to tr...

The scenario under consideration involves n cascaded continuous processing units responsible for processing m product lines. Each product line needs to be processed by all the units in the same sequence, and has dedicated finite capacity storage tanks before and after every processing unit. A unit can process only one product line at a time. Inputs for all the product lines arrive continuously ...

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...

This work represents a quantitative assessment of the eco-park theory and its application to a case involving the export of several chemical products in addition to heat and electricity. The network is assessed in terms of environmental impact and profitability relative to existing facilities. GAMS software was employed to create the optimization problem akin to a typical transportation problem...

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,...