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Light Flicker of Fluorescent Lamps with Different Types of Ballasts Caused by Interharmonics
of fluorescent lamps and ballasts. One of the analysis results is a concept determining light sourcessensitivity to such disturbing type based on frequency components utilization. Further of fluorescent lamps and ballasts ...
JE - Nejaderná energetika, spotřeba a užití energie
- 2005 •
- D
Rok uplatnění
D - Stať ve sborníku
The Behaviour of Concrete Sleepers in Ballast
The paper is focused on the behaviour of concrete sleepers in ballast of stresses in ballast under sleepers is described in the second part of the paper. Thhe static and dynamic analyses for selected types of sleepers were ...
JN - Stavebnictví
- 2004 •
- D
Rok uplatnění
D - Stať ve sborníku
An improved Valley-Fill passive Power-Factor-Correction circuit for electronic ballast
of good operation characteristics of an electronic ballast with such type of the powerThe paper deals with an improvement of the Valley-Fill (VF) Power Factor Correction (PFC) circuit for Electronic Ballast (EB), which red...
JE - Nejaderná energetika, spotřeba a užití energie
- 2008 •
- D
Rok uplatnění
D - Stať ve sborníku
Behaviour of a Ballasted Track under Cyclic Loading: Numerical and Laboratory Investigations
in laboratoryconditions in a small-scale box filled with ballast material reinforced with different type of geosynthetics. Different thickness of the ballast and subballast layersThis paper deals with numerical and experim...
JM - Inženýrské stavitelství
- 2009 •
- D
Rok uplatnění
D - Stať ve sborníku
The performance of hexagonal geogrid with large apartures beneath railway ballast bed in laboratory conditions
ballast versus former biaxial geogrids. Several models of railway sub-structure have generation in the function of the effective stabilisation of the railway ballast layer distribution of the load in the plain of the geogrid in cas...
JM - Inženýrské stavitelství
- 2015 •
- D
Rok uplatnění
D - Stať ve sborníku
Using the Lightweight Falling Deflectometer for Monitoring Trial Railway Sections with Under-Ballast Geocomposites
of railway lines in the Czech Republic, where different types of geocomposites were inserted under ballast during the period of 2008 to 2012. In these sections, the long of the load-bearing capacity on the top surface of the ba...
JM - Inženýrské stavitelství
- 2014 •
- D •
- Link
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
Advances in the nondestructive condition assessment of railway ballast: A focus on GPR
) methodology in the investigation of railway ballast under a diverse set of fouling surveys. Granite ballast and three fouling agents; sand, gravel, and the mixture employed to attain the Relative Dielectric Permittivity (RDP) of t...
Transport engineering
- 2020 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Measurement of the Magnitude of the Contact Area between Under Sleeper Pads and Ballast Bed Aggregates
between the sleeper loading area and the ballast bed when under sleeper pads of loads from the sleeper into the ballast bed. Under loading, the ballast bed the area through which the load is transferred onto individual gra...
JM - Inženýrské stavitelství
- 2012 •
- D •
- Link
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
Test Plate
The subject of industrial design is design of geometric ballast plate for testing of under sleeper pads and ballast mats and mats, which takes into account or in ballast mats in the railway superstructure. Geometrically arr...
JN - Stavebnictví
- 2014 •
- Fprum
Rok uplatnění
Fprum - Průmyslový vzor
Quantification of the Mechanized Ballast Cleaning Process Efficiency Using GPR Technology
of the railway infrastructure, particularly the ballast layer. To overcome ballast fouling, mechanized ballast cleaning process, which increases track occupancy time and cost ballast life cycle, and level of fouli...
Transport engineering
- 2021 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
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