User profiles for P. Pfeifer

Peter Pfeifer

- Verified email at missouri.edu - Cited by 12870

Phillip E Pfeifer

- Verified email at virginia.edu - Cited by 6316

Generalized time-energy uncertainty relations and bounds on lifetimes of resonances

P Pfeifer, J Fröhlich - Reviews of Modern Physics, 1995 - APS
… For a density operator and an orthogonal projection P, we call f( ,A) the uncertainty of A in
state and f(P,A) the uncertainty of A in the subspace PH. The relation of Theorem 1 to Lemma 2 …

[BOOK][B] Marketing metrics: The definitive guide to measuring marketing performance

PW Farris, N Bendle, P Pfeifer, D Reibstein - 2010 - books.google.com
Pfeifer is a prolific case writer, having been recognized in 2004 as the Darden School’s
faculty leader in terms of external case sales, and in 2008 with a Wachovia Award for …

Chemistry in noninteger dimensions between two and three. I. Fractal theory of heterogeneous surfaces

P Pfeifer, D Avnir - The Journal of chemical physics, 1983 - pubs.aip.org
… 'P ·D where Vis the cumulative volume of pores with radius >p… is the number of pores of radius
between p and p + dp. If we … p 2: r may accept -2rrph(p)/(rry2) guest molecules, For p ~r this …

Molecular fractal surfaces

D Avnir, D Farin, P Pfeifer - Nature, 1984 - nature.com
In this letter we report that, at the molecular-size range, the surfaces of most materials are
fractals, that is, at this range, surface geometric irregularities and defects are characteristically …

Chemistry in noninteger dimensions between two and three. II. Fractal surfaces of adsorbents

D Avnir, D Farin, P Pfeifer - The Journal of chemical physics, 1983 - pubs.aip.org
The concept of fractal dimension D of surfaces, advanced as natural measure of surface
irregularity in part I of this series, is shown to apply to a remarkable variety of adsorbents: …

Nanospace engineering of KOH activated carbon

…, B Kuchta, P Yu, G Suppes, C Wexler, P Pfeifer - …, 2011 - iopscience.iop.org
This paper demonstrates that nanospace engineering of KOH activated carbon is possible by
controlling the degree of carbon consumption and metallic potassium intercalation into the …

Multilayer adsorption on a fractally rough surface

P Pfeifer, YJ Wu, MW Cole, J Krim - Physical Review Letters, 1989 - APS
… z to have constant number density p, and the volume Q(z), the coverage at pressure P on the
Aat surface is … We invoke the FHH Ansatz again to obtain the film thickness z at pressure P: …

A three-stage iterative procedure for space-time modeling phillip

PE Pfeifer, SJ Deutrch - Technometrics, 1980 - Taylor & Francis
… that cut off after p lags, the STAR process exhibits a space-time correlation function that tails
off with both space and time and partial autocorrelations that cut off after p lags in time and X…

Modeling customer relationships as Markov chains

PE Pfeifer, RL Carraway - Journal of interactive marketing, 2000 - journals.sagepub.com
The lifetime value of a customer is an important and useful concept in interactive marketing.
Courtheaux (1986) illustrates its usefulness for a number of managerial problems—the most …

Surface geometric irregularity of particulate materials: the fractal approach

D Avnir, D Farin, P Pfeifer - Journal of Colloid and Interface Science, 1985 - Elsevier
… Surface geometric irregularities of a wide variety of particulate materials are determined
by applying the fractal theory of surface science (P. Pfeifer and D. Avnir, J. Chem. …