National Repository of Grey Literature 25 records found  previous11 - 20next  jump to record: Search took 0.01 seconds. 
Chromatographic Determination of Transport Characteristics of Porous Solids
Šolcová, Olga ; Schneider, Petr
The article deals with chromatographic determination of transport characteristics of porous solids.
P-V-T Behaviour of Liquid Alkane- 1-Chloroalkane Mixtures at Elevated Temperatures and High Pressures
Linek, Jan ; Morávková, Lenka
The article describes problems of P-V-T behaviour of liquid alkane- 1-chloroalkane mixtures at elevated temperatures and high pressures.
Temperature Dependence of Excess Molar Volumes of the Systems Heptane + 1-Chloroalkane and Octane 1-Chloroalkane
Linek, Jan ; Morávková, Lenka
The densities of octane- 1-chlorobutane, or -1chloropentane, or 1-chlorohexane systems were measured at temperatures 308.15, 318.15, and 328.15 K by means of a vibrating-tube densimeter. It was found that the deviations from ideal behaviou in the systems studied increase with increasing temperature.
Permeability of Polymer Membranes for Organic Vapors
Friess, K. ; Šípek, M. ; Hynek, V. ; Bohatá, K. ; Izák, Pavel ; Sysel, P.
In this work the permeability coefficients of saturated and non-saturated vapors through polymer flat membranes were determined. The diferential flow permeameter with thermal conductivity detection of vapor mixtures composition at 25 °C and atmospheric pressure has been used.
A Novel Viscometric Sensor for Measuring the Apparent Wall Slip Effect
Wein, Ondřej ; Večeř, Marek
In the present lecture, heory is given of a viscometric experiment for the liquids displaying the apparent wall slip effect. A software package for treating the viscometric data from HAAKE RheoStress rotational theometers is presented. Using of the theory to calibration with a Newtonian liquid and the concept of local data filtering are illustrated on new experimental data.
Wavy Films Flow: Linear Stability and Evolution
Wein, Ondřej ; Tihon, Jaroslav
The Orr-Sommerfeld (OS)problem is analyzed in terms of the relation between complex-valued wavenumber alfa and celerity c. For the long-wave regular branch, Taylor series to c(alfa) is found to be of limited use, as its convergence radius pi is to small. Wave characteristics of the conception region, including besides c(alfa) also the wall shear rate impendance q , are obtained for the maximum spatial growth rate scenarioo by solving the OS problem numerically.
Measurement of Temperature Fields Using Thermochromic Liquid Crystals
Vejražka, Jiří ; Marty, Ph. ; Sobolík, Václav
The method described in has become standard for measurements using liquid crystals.
Emissions of Toxic Components from Firing of Used Oils in a 102 kW Burner Boiler
Tydlitát, Vratislav ; Janota, J. ; Pekárek, Vladimír ; Punčochář, Miroslav
Firing of used motor oils in burner-type boilers does not produce emissions of the investigated substances which would exceed the current emission limits, except for a small deviation in the content of chlorine. The measurements unexpectedly showed that the new limit for PCDD/F to be effected in the Czech Republic since April 2002 is only slightly exceeded.
Activity of Calcined Hydrotalcite-like Compounds in Catalitic Combustion of Volatile Organic Compounds (VOC)
Čuba, Pavel ; Kovanda, F. ; Jirátová, Květa
This article deals with activity of calcined hydrotalcite-like compounds in catalitic combustion of volatile organic compounds (VOC).
Release and Partition of Selected Alkali Metals and Heavy Metals in Pressurized Substoichiometric Combustion of Coals
Čermák, Jiří ; Svoboda, Karel ; Pohořelý, Michael
In our contribution the comparison of pressurized bed substoichiometric combustion of three various kinds of subbituminous coal is presented.

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