Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Zdenek Chobola"'
Publikováno v:
International Journal of Photoenergy, Vol 2012 (2012)
This paper brings the comparison of solar cell conversion efficiency and results from a noise spectroscopy and microplasma presence to evaluate the solar cell technology. Three sets of monocrystalline silicon solar cells (c-Si) varying in front side
Externí odkaz:
https://doaj.org/article/ab42257c3e944a8ebdfed04ebfe95b7a
Publikováno v:
Key Engineering Materials. 776:86-91
Behaviour of concrete under elevated temperatures is very complex. There is a change of mechanical and physical parameters with temperature. In this paper we study the relations of thermal damage processes in concrete and parameters obtained by diffe
Autor:
Michaela Hoduláková, Richard Dvořák, Lubos Pazdera, Karel Mikulášek, Libor Topolář, Zdenek Chobola, Jaroslav Smutny
Publikováno v:
Key Engineering Materials. 776:81-85
The paper is concerned with the technical aspects of the appraisal and retrofitting process of fire damaged reinforced concrete structures. The assessment of fire damaged structures is carried out along lines similar to those of the appraisal of exis
Publikováno v:
Materiali in tehnologije. 50:565-570
The corrosion of steel elements in reinforced concrete can cause considerable damage to civil-engineering structures. Early detection of rust is therefore very important. The aim of this paper is to evaluate the possibility of using nonlinear ultraso
Publikováno v:
Procedia Engineering. 2016, vol. 2016, issue 151, p. 236-240.
New materials based on alkali-activated slag mortars may be an important contribution of applied research, which strives to offer the use of waste materials as a full replacement for the currently used binders and explores the impact of forms of carb
Publikováno v:
ECS Transactions. 70:245-253
In this paper we present the comparisons of noise spectroscopy, I-V characteristic and microplasma detection of silicon concentrator photovoltaic (CPV) cell with very high efficiency. Efficiency reaches to 38 %. We studied two groups with different t
Publikováno v:
Materiali in tehnologije. 49:639-643
Publikováno v:
Applied Mechanics and Materials. :1389-1394
Concrete quality depends on various stress factors. The impedance spectroscopy method, as one of the non-destructive testing method group, was used to characterize concrete specimens and track the changes in the concrete spectrum after heat stress. T
Publikováno v:
ECS Transactions. 40:177-185
This paper deals with comparisons of noise spectroscopy and detection of microplasma noise sources in the three new type of solar cells G1, G3 and G5. When high electric field is applied to PN junction with some technological imperfections like dislo
Publikováno v:
International Journal of Photoenergy, Vol 2012 (2012)
This paper brings the comparison of solar cell conversion efficiency and results from a noise spectroscopy and microplasma presence to evaluate the solar cell technology. Three sets of monocrystalline silicon solar cells (c-Si) varying in front side