Hledat
Zobrazují se záznamy 131-140 z 955
New Abrasive Materials and Their Influence on the Surface Quality of Bearing Steel After Grinding
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
This paper focuses on the influence of various types of abrasive grains on cutting properties during the grinding process for bearing steel. In this experiment, not only conventional super-hard abrasive materials but also ...
Laser Cutting of Materials of Various Thicknesses
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
Thise paper deals with the application of laser technology and optimizing the parameters for cutting nickel alloy. The theoretical part of the paper describes various types of lasers, their principles and usage. The ...
Checking the Geometric Accuracy of a Machine Tool for Selected Geometric Parameters
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
This paper deals with the control parameters for selected geometric accuracy measurements for a machine tool. The parameters were needed after a refurbished milling machine was purchased. After setting up the machine, it ...
Determination of Uncertainties for Correlated Input Quantities by the Monte Carlo Method
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
This paper presents the calculation of the uncertainty for distribution propagation by the Monte Carlo method for a measurement model with one output quantity. The procedure is shown on the basis of an example of the ...
Status and Perspectives of the Mini-MegaTORTORA Wide-field Monitoring System with High Temporal Resolution
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
Here we briefly summarize our long-term experience of constructing and operating wide-field monitoring cameras with sub-second temporal resolution to look for optical components of GRBs, fast-moving satellites and meteors. ...
Photometric Analysis of Pi of the Sky Data
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
Two fully automatic Pi of the Sky detectors with a large field of view, located in Spain (INTA) and in Chile (SPDA) observe the sky in search of rare optical phenomena, and also collect observations which include many kinds ...
Classification of Variable Objects for Search for GRB Candidates on Bamberg Photographic Plates
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
We report on an ongoing study based on blink-comparison of more than 5000 Bamberg Observatory Southern Sky Patrol Plates performed within a continuation of a student high school project (Jugend Forscht). After a detailed ...
The Point Spread Function Variations inside Wide-field Astonomical Images
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
The Point Spread Function (PSF) of the astronomical imaging system is usually approximated by a Gaussian or Moffat function. For simplification, the astronomical imaging system is considered to be time and space invariant. ...
On Some Statistical Properties of GRBs with Measured Redshifts Having Peaks in Optical Light Curves
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
We studied the subset of optical light curves of gamma-ray bursts with measured redshifts and well-sampled R band data that have clearly detected peaks. Among 43 such events, 11 are promptoptical peaks (P), coincident with ...
The Czech Contribution to Future Large X-Ray Astronomy Telescopes: Recent Progress
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
We briefly review the recent status of the Czech contribution to future space X-ray astronomy missions with emphasis on the development of new technologies and test samples of X-ray mirrors with precise surfaces based on ...