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1.
Improved frequency characteristics of the randomized PWM boost rectifier
Franc Mihalič, Miro Milanovič, Carlos Cuoto, 2003, original scientific article

Abstract: A randomized pulse width modulation (RPWM) algorithm is applied in the control unit of the boost rectifier to achieve improved frequency characteristics in the wide band. First, the introduction of the RPWM switching is reflected in a smaller increase of the total harmonic distortion (THD) factor in the input current. Nevertheless, decrease of the power factor is negligibly small. Second, the power spectrum density (PSD) of the input current is estimated and measured to evaluate the influence of randomization in the high-frequency range. This approach offers an effective and credible prediction method for reduction of conductive electromagnetic interference (EMI) by using the RPWM switching.
Keywords: rectifiers, boost rectifiers, randomized pulse width modulation, estimation methods, total harmonic distortion, power factor, conductive electromagnetic interference
Published: 01.06.2012; Views: 1061; Downloads: 48
URL Link to full text

2.
Distortion of the substructure of a 20-ft shipping container exposed to zinc hot-dip galvanizing
Ivana Ivanović, Aleksandar Sedmak, Rebeka Rudolf, Leo Gusel, Biljana Grujić, 2013, original scientific article

Abstract: The main goal of this study was to build a model for a numerical simulation of hot-dip galvanizing of a 20-ft ISO shipping container. For that purpose, the basic transient thermo-mechanical problem of a steel structure under the influence of the temperature characteristic for a zinc hot-dip galvanizing bath was analyzed. Numerical calculations were performed for a simple part and for the complex substructure of the container. Calculations were carried out on the Salome-Meca platform using a Netgen mesh generator and a Code_Asterfinite-element solver.
Keywords: shipping container, structural steel, zinc hot-dip galvanizing, transient heat transfer, distortion
Published: 10.07.2015; Views: 443; Downloads: 46
.pdf Full text (703,73 KB)
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3.
A THEMATIC ANALYSIS OF DAN BROWN`S NOVEL ANGELS AND DEMONS WITH REFERENCE TO CURRENT AND HISTORICAL CATHOLIC CHURCH POLICY AND THEOLOGY
Nataša Jakob, 2016, undergraduate thesis

Abstract: I have decided to analyze the novel Angels and Demons written by Dan Brown in my diploma. The work is non-canonical and contains many clichéd themes. However, some non-canonical works deserve much more critical attention than they actually get, and Angels and Demons is one of them. Dan Brown invented an incredible plot with many entanglements and subplots. All of the plots and subplots are resolved in the end. The novel is pure fiction. Brown uses, but distorts, historical events in order to tell his story. In my diploma I argued why there has historically been a conflict between science and faith and I wanted to build a bridge between them, and to show how Brown's novel manipulates this conflict. The novel takes the reader on an incredible journey through Rome and the Vatican. I analyzed the main three characters of the novel, and showed how the priest, Carlo Vantresca, does not respect the Canon of the Holy Scripture. At the end I came to the conclusion that everything in the world is related. Science is born from religion and they can complement one another, as Pope John Paul II stated: “Science can purify religion from error and superstition; religion can purify science from idolatry and false absolutes. Each can draw the other into a wider world, a world in which both can flourish” (John Paul II. A letter To the Reverend George V. Coyne SJ,Director of the Vatican Observatory). Literature, like Brown's, can deal with these themes in many ways, but because Brown's novel sensationalizes them for commercial purposes, it cannot be considered to be serious literature.
Keywords: angels, demons, corrupt, history, distortion, conflict, science, faith, religion, fact, fiction, murder
Published: 03.06.2016; Views: 917; Downloads: 75
.pdf Full text (806,07 KB)

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