Now showing items 11-20 of 35
Theoretical basis for the Dubinin-Radushkevitch (D-R) adsorption isotherm equation
(Kluwer Academic Publishers; Springer Science+Business Media, 1997-09)
The Dubinin-Radushkevitch (D-R) equation, which was originally proposed as an empirical adaptation The Polanyi adsorption potential theory, has been the fundamental equation to quantitatively describe the adsorption gases ...
Charge-coupled device imaging of rapid calcium transients in cultured arterial smooth muscle cells
(Elsevier, 1990)
Transient changes in the concentration of intracellular free calcium are associated with the transduction of primary signals and the subsequent employment of Ca2+ as a second messenger in a multitude of cell types. These ...
Carbon-hydrogen bond activation over tungsten carbide catalysts
(Elsevier, 1994-08-30)
Tungsten carbides with surface areas ranging from 4 to 39 m2/g were prepared by the temperature-programmed carburization of tungsten oxide and nitride powders with pure CH4 or a 48.9% CH4 in H2 mixture. Oxygen uptakes on ...
Secondary aluminium-iron (III) chloride batteries with a low temperature molten salt electrolyte
(Kluwer Academic Publishers; Chapman and Hall ; Springer Science+Business Media, 1992-03)
Secondary aluminium-iron (III) chloride batteries using a low temperature molten salt electrolyte were constructed and tested. Discharge current densities were in the range 5 to 100 mA (∼ 1 to 20 mA cm −2 ; ∼ C /4 to 5 C ...
Interfacial segregation in Ag-Au, Au-Pd, and Cu-Ni alloys: I. (100) surfaces
(Kluwer Academic Publishers; Springer Science+Business Media, 1993-03)
Atomistic simulations of segregation to (100) free surface in Ag−Au, Au−Pd, and Cu−Ni alloy systems have been performed for a wide range of temperatures and compositions within the solid solution region of these alloy phase ...
High resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures
(Elsevier, 1990-04-01)
A new class of measurements on GaAs quantum well structures based on frequency domain nonlinear laser spectroscopy is described. Room temperature measurements of the excitation relaxation show an interference effect in the ...
Interfacial segregation in Ag-Au, Au-Pd, and Cu-Ni alloys: II. [001] Σ5 twist grain boundaries
(Kluwer Academic Publishers; Springer Science+Business Media, 1993-03)
Atomistic simulations of segregation to [001] Σ5 twist boundaries in Cu−Ni, Au−Pd, and Ag−Au alloy systems have been performed for a wide range of temperatures and compositions within the solid solution region of these ...
Characterization of HDS/HDN active sites in cluster-derived and conventionally-prepared sulfide catalysts
(Elsevier, 1994-08-30)
The catalytic and sorptive properties of a series of sulfide cluster-derived catalysts were compared to those of an analogous series of conventionally-prepared sulfides. The cluster-derived and conventionally-prepared ...
The use of sulfide cluster-derived catalysts to understand the promotional effect in hydrotreatment catalysis
(John Wiley & Sons Ltd., 1992-09)
Sulfide cluster-derived ensembles are promising models of the active sites in commercial hydrotreatment catalysts. A series of sulfide clusters were adsorbed intact onto high-surface-area Γ-alumina, magnesium oxide and ...