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2131 documents, page 1 of 214

Comparison of yield of tires pyrolysis in laboratory and pilot scales

Čížková, Adéla; Juchelková, Dagmar (2009)
The contribution deals with the pyrolysis of waste tires of passenger vehicles and trucks. During the pyrolysis pyrolytic char, oil and gas occur. Within the research a yield of individual fractions determined according to ČSN ISO 647 and a pilot scale test was performed, in order to carry out basic physical and chemical characteristics of pyrolytic char. During the test according to ČSN ISO 647 about 39 % of pyrolytic char, 44 % of tar occurred and by 16 % the gaseous phase was represented. ...

Some aspects of ellipsoidal distance enumeration in GIS applications

Homola, Vladimír (2010)
The article is the introductory study for one of the fundamental geo-informatics operations - the reciprocal position calculation of Earth localities. It is known that, in general, this calculation leads up to an elliptic integral calculation. In a computer environment, the algorithms are determined by data storage precision. Furthermore, repeated calculation with numerous data results in deceleration of all the applications. In special cases, the accurate application of ellipsoidal trigonome...

Structure and mechanical properties of explosive welded Mg/Al bimetal

Balga, Dušan; Ostroushko, Dmytro; Saksl, Karel; Mazancová, Eva; Milkovič, Ondrej (2014)
In the article we analyzed shape, local mechanical properties, chemical and phase composition of Magnesium/Aluminium cladded material prepared by explosion welding. In particular we focus our investigation on Mg/Al interface and areas close to the joint. Hardness of the joined materials measured far from their interface is similar for both materials, however in the region of interface the hardness drops down by 40%. Phase transformations in the interface was examined by a hard X-ray ...

Komplexné hodnotenie kvality elektrickej energie v elektrických sieťach

Altus, Juraj; Novák, Milan; Otčenášová, Alena; Pokorný, Michal (2003)

A note on the transcendence of infinite products

Hančl, Jaroslav; Kolouch, Ondřej; Pulcerová, Simona; Štěpnička, Jan (2012)
This paper has been elaborated in the framework of the IT4Innovations Centre of Excellence project, reg. no. CZ.1.05/1.1.00/02.0070 supported by Operational Programme ‘Research and Development for Innovations’ funded by Structural Funds of the European Union and state budget of the Czech Republic and by grants no. ME09017, P201/12/2351 and MSM 6198898701. The paper deals with several criteria for the transcendence of infinite products of the form ∏n=1∞[bnaan]/bnaan where α > 1 is a positiv...

Aspects of classification of energy sources in terms of their position in the sector of the economy

Dirner, Vojtech; Pavelek, Zdeněk (2016)
The paper deals with the study of problems relating to classification of energy sources, in particular from the perspective of their position in covering of energy needs of country or economic sector. Classification of energy sources is currently often viewed as a set of fixed categories, but taking a closer look and making a deeper analysis can defined a number of criteria that might determine the final importance and position of resources in the context of complex connections. The compositi...

Radiace a informačne systémy

Zahradník, Jiří; Rástočný, Karol; Spalek, Juraj (2003)

Overenie vlastností MMPP a IPP ATM bunkových zdrojov

Žabka, Ján (2007)
The paper is aimed to using aided software tool designed by . NET Framework. By means this one is possible to gain statistical file for next processing by software tool STATISTICA. Graphical results ilustrate the influence of cell flow source and its parameters on stochastic variable describing intercell distance. There are two types of cell flow source evaluated, MMPP (Markov modulated poisson process) and IPP (Interrupted poisson process).
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