• Aucun résultat trouvé

Diffusion coefficients

A Cumulative migration method for computing rigorous transport cross sections and diffusion coefficients for LWR lattices with Monte Carlo

A Cumulative migration method for computing rigorous transport cross sections and diffusion coefficients for LWR lattices with Monte Carlo

... (or diffusion coefficients) for use in downstream multi-group ...two-group diffusion coefficients that eliminated radial power tilts observed in large 4-loop PWR cores when using the ...

17

Diffusion coefficients of solids in supercritical carbon dioxide: Modelling of near critical behaviour

Diffusion coefficients of solids in supercritical carbon dioxide: Modelling of near critical behaviour

... binary diffusion coefficients of solids in supercritical fluids are restricted to infinite dilution; this can be explained by the fact that most of experimental data are performed in the dilute ...of ...

17

On the relationship between the formation factor and diffusion coefficients of Portland cement mortars

On the relationship between the formation factor and diffusion coefficients of Portland cement mortars

... Figure 5: Comparison between formation factor of lithium, and HTO obtained experimentally Differences obtained between these factors must normally tend to zero since it is the same formula- tions which were tested by the ...

7

Note: Determination of effective gas diffusion coefficients of stainless steel films with differently shaped holes using a Loschmidt diffusion cell

Note: Determination of effective gas diffusion coefficients of stainless steel films with differently shaped holes using a Loschmidt diffusion cell

... Loschmidt diffusion cell is used to measure the effective O 2 – N 2 diffusion coefficients through four porous samples of different simple pore ...mass diffusion theory is applied to process ...

4

Cumulative migration method for computing multi-group transport cross sections and diffusion coefficients with Monte Carlo calculations

Cumulative migration method for computing multi-group transport cross sections and diffusion coefficients with Monte Carlo calculations

... and improve the errors caused by spatial homogenization and energy condensation with MGXS generated using Monte Carlo codes [1,23–27], but the accuracy improvement for angular approximations remains a challenging task ...

214

Experimental study of oxygen diffusion coefficients in clean water containing salt, glucose or surfactant: Consequences on the liquid-side mass transfer coefficients

Experimental study of oxygen diffusion coefficients in clean water containing salt, glucose or surfactant: Consequences on the liquid-side mass transfer coefficients

... oxygen diffusion coef- ficients reaches 30% for the highest concentrations (100 g L −1 ), leading to a minimal value of ...the diffusion coefficient of oxygen in glucose solutions; indeed, these authors ...

12

Measurement of effective gas diffusion coefficients of catalyst layers of PEM fuel cells with a Loschmidt diffusion cell

Measurement of effective gas diffusion coefficients of catalyst layers of PEM fuel cells with a Loschmidt diffusion cell

... and diffusion cell methods, have been developed to determine the EGDCs of porous materials [9–13] ...Wicke–Kallenbach diffusion cell to measure the EGDC of a catalyst monolith ...Loschmidt diffusion ...

7

Methods to calculate gas diffusion coefficients of cellular plastic insulation from experimental data on gas absorption

Methods to calculate gas diffusion coefficients of cellular plastic insulation from experimental data on gas absorption

... https://doi.org/10.1177/109719639101400408 Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Methods to calculate gas diffusion coefficients of ...

19

Acquisition of anion profiles and diffusion coefficients in the Opalinus Clay at the Mont Terri rock laboratory (Switzerland)

Acquisition of anion profiles and diffusion coefficients in the Opalinus Clay at the Mont Terri rock laboratory (Switzerland)

... out diffusion experiments were carried out to acquire anion concentrations and estimate pore diffusion ...Out diffusion technique gave consistent values of chloride and bromide compared to the ...

5

Analysis of volatile organic compounds (VOCs) in soil via passive sampling : measuring partition and diffusion coefficients

Analysis of volatile organic compounds (VOCs) in soil via passive sampling : measuring partition and diffusion coefficients

... Analysis of Volatile Organic Compounds (VOCs) in Soil via Passive Sampling: Measuring Partition and Diffusion Coefficients.. by Hanqing Liu.[r] ...

58

Coherent quantum transport in disordered systems: II. Temperature dependence of carrier diffusion coefficients from the time-dependent wavepacket diffusion method

Coherent quantum transport in disordered systems: II. Temperature dependence of carrier diffusion coefficients from the time-dependent wavepacket diffusion method

... wavepacket diffusion (TDWPD) method [ 41 ] to investigate the diffusion coef ficient of the one-dimensional molecular-crystal model when both the static and dynamic disorders are ...The diffusion coef ...

17

Extension of the bifurcation method for diffusion coefficients to porous medium transport

Extension of the bifurcation method for diffusion coefficients to porous medium transport

... Extension of the bifurcation method for diffusion coefficients to porous medium transport.. Cédric Descamps, Gerard LG[r] ...

21

Calculation of combined diffusion coefficients from the simplified theory of transport properties

Calculation of combined diffusion coefficients from the simplified theory of transport properties

... la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou ...

9

Theoretical and experimental determination of effective diffusion and thermodiffusion coefficients in porous media

Theoretical and experimental determination of effective diffusion and thermodiffusion coefficients in porous media

... thermal diffusion coefficients is the thermogravitational column which consists of two vertical plates separated by a narrow space under a horizontal [54] or vertical [30] thermal ...thermal ...

180

Bounds between contraction coefficients

Bounds between contraction coefficients

... Our discussion regarding model selection using contraction coefficients can be naturally extended to include proba- bility density functions (pdfs). For instance, the local approximations introduced in Subsection ...

18

Design heat transmission coefficients

Design heat transmission coefficients

... Note 3: When heat transfer is by conduction alone, the average thermal conductivity is the product of the thermal conductance per unit area and the thickness.. The aver[r] ...

34

Reductions for branching coefficients

Reductions for branching coefficients

... recently proved independently by Derksen and Weyman in [DW11, Theorem 7.4] and King, Tollu and Toumazet in [KTT09, Theorem 1.4] if G = GL n.. and for any reductive group by Roth in [Rot1[r] ...

14

Évolution historique des coefficients aérodynamiques

Évolution historique des coefficients aérodynamiques

... les coefficients d’influence de l’angle d’incidence α, pour la force de traînée et pour la force de ...les coefficients C X (α) et C Y (α) devenaient indépendants du fluide ...

9

Synthèse indépendante des coefficients de réflexions de la matrice de diffusion d'une méta-surface

Synthèse indépendante des coefficients de réflexions de la matrice de diffusion d'une méta-surface

... d’une cellule réflectrice afin d’approcher une matrice de diffusion voulue. Cette étude est motivée par le besoin grandissant de contrôler le coefficient de réflexion en co- polarisation des méta-surfaces ainsi ...

5

Design heat transmission coefficients

Design heat transmission coefficients

... and Their Practical Use; Insulating Constructions; Adjustment for Fralning; Curtain lYoils; Ventilated Attics; Foundalion Coefficiena; Gloss'and Door Coefficients; Wind Effects; Heat Lo[r] ...

31

Show all 2418 documents...

Sujets connexes