SLO | ENG

Večja pisava | Manjša pisava

Iskanje po katalogu digitalne knjižnice Pomoč

Iskalni niz: išči po
išči po
išči po
išči po
* po starem in bolonjskem študiju

Opcije:
  Ponastavi


1 - 10 / 591
Na začetekNa prejšnjo stran12345678910Na naslednjo stranNa konec
1.
Prediction of the hardness of hardened specimens with a neural network
Matej Babič, Peter Kokol, Igor Belič, Peter Panjan, Miha Kovačič, Jože Balič, Timotej Verbovšek, 2014, izvirni znanstveni članek

Opis: In this article we describe the methods of intelligent systems to predict the hardness of hardened specimens. We use the mathematical method of fractal geometry in laser techniques. To optimize the structure and properties of tool steel, it is necessary to take into account the effect of the self-organization of a dissipative structure with fractal properties at a load. Fractal material science researches the relation between the parameters of fractal structures and the dissipative properties of tool steel. This paper describes an application of the fractal dimension in the robot laser hardening of specimens. By using fractal dimensions, the changes in the structure can be determined because the fractal dimension is an indicator of the complexity of the sample forms. The tool steel was hardened with different speeds and at different temperatures. The effect of the parameters of robot cells on the material was better understood by researching the fractal dimensions of the microstructures of hardened specimens. With an intelligent system the productivity of the process of laser hardening was increased because the time of the process was decreased and the topographical property of the material was increased.
Ključne besede: fractal dimension, fractal geometry, neural network, prediction, hardness, steel, tool steel, laser
Objavljeno: 17.03.2017; Ogledov: 34; Prenosov: 2
.pdf Polno besedilo (632,41 KB)

2.
A new method for estimating the Hurst exponent H for 3D objects
Matej Babič, Peter Kokol, Nikola Guid, Peter Panjan, 2014, izvirni znanstveni članek

Opis: Mathematics and computer science are very useful in many other sciences. We use a mathematical method, fractal geometry, in engineering, specifically in laser techniques. Characterization of the surface and the interfacial morphology of robot-laser-hardened material is crucial to understand its properties. The surface microstructure of robot-laser-hardened material is rough. We aimed to estimate its surface roughness using the Hurst parameter H, which is directly related to the fractal dimension. We researched how the parameters of the robot-laser cell impact on the surface roughness of the hardened specimen. The Hurst exponent is understood as the correlation between the random steps X1 and X2, which are followed by time for the time difference t. In our research we understood the Hurst exponent H to be the correlation between the random steps X1 and X2, which are followed by the space for the space difference d. We also have a space component. We made test patterns of a standard label on the point robot-laser-hardened materials of DIN standard GGG 60, GGG 60 L, GGG 70, GGG 70 L and 1.7225. We wanted to know how the temperature of point robot-laser hardening impacts on the surface roughness. We developed a new method to estimate the Hurst exponent H of a 3D-object. This method we use to calculate the fractal dimension of a 3D-object with the equation D = 3 - H.
Ključne besede: fractal structure, Hurst exponent, robot, hardening, laser
Objavljeno: 14.03.2017; Ogledov: 34; Prenosov: 3
.pdf Polno besedilo (468,97 KB)

3.
Teorije o množičnih medijih
Suzana Žilič Fišer, 2016, drugo učno gradivo

Ključne besede: komunikacija, množični mediji, teorija
Objavljeno: 08.12.2016; Ogledov: 78; Prenosov: 30
.pdf Polno besedilo (267,75 KB)

4.
Organizacija TV in njeno preučevanje
Suzana Žilič Fišer, 2016, drugo učno gradivo

Ključne besede: komunikacija, mediji, demokracija
Objavljeno: 24.11.2016; Ogledov: 64; Prenosov: 5
.pdf Polno besedilo (335,47 KB)

5.
Mediji in demokracija
Suzana Žilič Fišer, 2016, drugo učno gradivo

Ključne besede: komunikacija, mediji, demokracija
Objavljeno: 24.11.2016; Ogledov: 78; Prenosov: 9
.pdf Polno besedilo (295,17 KB)

6.
Universal decomposition rule for OBDD, OFDD, and 0-sup-BDD
Robert Meolic, Zmago Brezočnik, 2016

Opis: Binary decision diagram (BDD) is a very successful data structure for representation and manipulation of Boolean functions. Various BDD types have been proposed. In this paper relations between OBDD, OFDD, and 0-sup-BDD are shown in a new way. An universal decomposition rule for them is introduced. Using this rule a set of 288 BDD types is defined together with their minimization rules. NOTE: This is a revisited and translated version of the paper: "Splošno razčlenitveno pravilo za OBDD, OFDD in 0-sup-BDD". In Proceedings of the Fifth Electrotechnical and Computer Science Conference ERK'96, Portorož, Slovenia, volume B, pages 11-14, September 1996.
Ključne besede: Binary Decision Diagram, Shannon's expansion, Reed–Muller expansion, Davio expansion, Digital Circuit Design
Objavljeno: 12.10.2016; Ogledov: 106; Prenosov: 14
.pdf Polno besedilo (235,92 KB)

7.
8.
Zbornik povzetkov študentskih projektov
2016, zbornik

Ključne besede: mehatronika, študentski projekti, zborniki
Objavljeno: 11.07.2016; Ogledov: 117; Prenosov: 23
.pdf Polno besedilo (1,76 MB)

9.
10.
Raziskovanje in načrtovanje platforme za izdelavo personalniziranih vsebin na pametnih urah
Borko Bošković, Luka Topolovec, 2015, končno poročilo o rezultatih raziskav

Ključne besede: pametne ure, raziskovnje platforme, načrtovanje platforme
Objavljeno: 22.04.2016; Ogledov: 145; Prenosov: 11
.pdf Polno besedilo (2,24 MB)

Iskanje izvedeno v 0.27 sek.
Na vrh
Logotipi partnerjev Univerza v Mariboru Univerza v Ljubljani Univerza na Primorskem Univerza v Novi Gorici