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873 (0,132s) •

Project

A Route to Measurement of Coefficients of Coefficients of Intracrystalline Diffusion on Zeolitic Catalysts. Application of Membrane Technique. (IAA4040901)

diffusion in zeolites. The membrane technique has successfully been applied to measure intracrystalline diffussion coefficients of single component species. It appears that theeffect of intra crystalline diffusion on a che...

CF - Fyzikální chemie a teoretická chemie

  • 1999 - 2001
    • •
  • 3 802 tis. Kč
    • •
  • 1 854 tis. Kč
    • •
  • AV ČR
Project

Surface diffusion of interacting adsorbed atoms (IAA1010718)

the behaviour of diffusion coefficient during the structure phase transitions which proceed with different energy barriers for diffusion is considered in models. We suppose, that the theoretical results give the coverage d...

BM - Fyzika pevných látek a magnetismus

  • 1997 - 2001
    • •
  • 8 595 tis. Kč
    • •
  • 2 520 tis. Kč
    • •
  • AV ČR
Project

Network diffusion and social cohesion the role of the clustering coefficient (GA21-22796S)

of social cohesion--measured by the clustering coefficient--in network diffusion. High clustering coefficient, the benchmark network measure of social cohesion, is a typical feature of social and economic networks, but its...

Economic Theory

  • 2021 - 2023
    • •
  • 1 793 tis. Kč
    • •
  • 1 793 tis. Kč
    • •
  • GA ČR
Project

Tracer diffusion in polymer gels in dependence on structure of the gel matrix. (IAA400500805)

The project is aimed at understanding the dependence of diffusion coefficients, andconcentration of elastically active chains. Coefficients of macroscopic translational diffusion of tracers carrying paramagnetic la...

CD - Makromolekulární chemie

  • 2008 - 2011
    • •
  • 3 480 tis. Kč
    • •
  • 3 480 tis. Kč
    • •
  • AV ČR
Project

Application of Inverse Modelling Methods for Solution of Salt Transport in Building Materials (GP103/04/P085)

with a constant diffusion coefficient and constant initial and boundary conditions. The main weaknesses of these models are the assumption of the constant diffusion coefficient of chemical compounds. As a conseque...

JN - Stavebnictví

  • 2004 - 2006
    • •
  • 433 tis. Kč
    • •
  • 433 tis. Kč
    • •
  • GA ČR
Project

Diffusion coefficents and other transport characteristics of specially shaped porous supports and catalysts (IAA4072404)

Diffusion coefficients and other transport characteristics are indispensable. The project will developed and verified a new method for determination of diffusion coefficients and other transport characteristics of ...

CF - Fyzikální chemie a teoretická chemie

  • 2004 - 2008
    • •
  • 2 426 tis. Kč
    • •
  • 2 426 tis. Kč
    • •
  • AV ČR
Project

Diffusion of constituents in Mg-based advanced alloys and composites (GA106/05/2115)

The aim of the present project is to obtain radiotracer diffusion coefticients in four commercial alloys. The diffusion coefficients of 67Ga,' 14mIn, 54Mn, mSb, the diffusion coefficients of' 1OmAg, lwCe, ...

BJ - Termodynamika

  • 2005 - 2007
    • •
  • 1 522 tis. Kč
    • •
  • 1 522 tis. Kč
    • •
  • GA ČR
Project

Transport processes during heat treatment in Mg-Al alloys (GA106/03/1355)

(alfa, ß, eutectic) and in commercial AZ91 alloy. Coefficients of volume diffusion aswellas estimation of short-circuit diffusivities of Zn-65 (simulates Mg), In-114m. Interdiffusion coefficients measured in d...

BJ - Termodynamika

  • 2003 - 2005
    • •
  • 6 081 tis. Kč
    • •
  • 2 881 tis. Kč
    • •
  • GA ČR
Project

Diffusion of hydrogen in alloys Mg-Ni modified by chosen elements that suppress the stability of hydrides (GA106/07/0010)

The aim of the project is (i) to obtain the diffusion coefficients of hydrogen in Mg, Mg-xNi and Mg-xNi-yX alloys with the third element X that shows to the solidus. Diffusion coefficients will be obtained by tenzi...

JG - Hutnictví, kovové materiály

  • 2007 - 2009
    • •
  • 2 070 tis. Kč
    • •
  • 2 070 tis. Kč
    • •
  • GA ČR
Project

Study of crystallization processes in multi-component alloys with the aim to determine regularities of interaction of elements and structure formation (GA106/06/1190)

of distribution coefficients of elements in ternary systems of solid solutions under both growth. The study of diffusion processes in selected multi-component systems of solid solutions with the aim to determine interdiffusion and ...

JG - Hutnictví, kovové materiály

  • 2006 - 2008
    • •
  • 1 250 tis. Kč
    • •
  • 1 250 tis. Kč
    • •
  • GA ČR
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