منابع مشابه
Measurements of Gaseous Diffusion Coefficients
Accurate knowledge of molecular diffusion coeffi· cients and their temperature dependence is important in obtaining fundamental information on forces be· tween unlike molecules. Until recently most diffusion measurements were conducted over short temperature intervals because the conventional methods such as the Loschmidt or the Stefan, require the thermostating of large, static systems. Walker...
متن کاملA Plane Source Method for Measuring Interdiffusion Coefficients of Transparent Liquids
a constant coefficient of thermal expansion, ( 2 2 + 1) x 10~6 degr. 1 , is obtained over the range 200 — 550 °C, and it appears as if the coefficient might be slightly lower in the region between 200 °C and room temperature. The thermal expansion of monoclinic lithium sulphate has been estimated previously by P I S T O R I U S 6, who measured the powder diffraction pattern at 500 C. From a com...
متن کاملConcentration Dependence of the Interdiffusion Coefficients in Molten Alkali Nitrate — Silver Nitrate Mixtures
für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...
متن کاملInterdiffusion in a polydisperse polymer blend.
We present a theoretical description of interdiffusion in a binary blend of polymers that exhibit polydispersity in length. The diffusion equations are formulated in terms of the volume fractions and the chain concentrations of the components. This choice of variables is equivalent to the assumption that the local molecular weight distributions of the components are described by the Flory distr...
متن کاملCation Interdiffusion in Squid Giant Axons
Radiotracer techniques were used to study the influxes and effluxes of various univalent cations in internally perfused squid giant axons. Membrane currents and conductances were determined by the voltage-clamp technique under analogous internal and external conditions. Both sodium-containing and sodium-free internal and external media were studied. Membrane impedance was measured with an ac im...
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ژورنال
عنوان ژورنال: JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
سال: 1970
ISSN: 0021-9592,1881-1299
DOI: 10.1252/jcej.3.143