Zobrazeno 1 - 10
of 24
pro vyhledávání: '"William H. Lawton"'
Autor:
J. Edward Jackson, William H. Lawton
Publikováno v:
Technological Forecasting and Social Change. 8:263-273
Various probability models are discussed which may be applied to Cross-Impact analysis. The bulk of this article is concerned with what is currently the most commonly employed model that utilizes marginal probabilities and either simple conditional p
Publikováno v:
Technometrics. 21:397-409
The basic sciences all require an ability to measure the amounts of substances under study. With new methods of measurement constantly being proposed there is a need for techniques for comparing these methods in terms of their precision and accuracy.
Autor:
William H. Lawton, E.A. Trabka
Publikováno v:
The Journal of Photographic Science. 22:131-137
We show how the classical random-dot model of photographic granularity may be modified to yield quantitative predictions of the phenomenon reported by Zwick that it is possible “to attain an image of finite density that is essentially grainless”
Publikováno v:
Analytical Chemistry. 49:864A-874A
Publikováno v:
Technometrics. 16:353-368
The paper presents a method for resolving additive mixtures of overlapping curves by combining nonlinear regression and principal component analysis. The method can be applied to spectroscopy, chromatography, etc. The method makes use of the postulat
Autor:
William H. Lawton, Stephen B. Lawton
Publikováno v:
Educational Administration Quarterly. 15:19-46
The spread of educational innovations is a topic that has been investigated from a multitude of viewpoints. Some individuals have been interested in dissemination of particular practices or products; others have studied the diffusion process itself;
Publikováno v:
Canadian Journal of Chemistry. 51:628-635
The absorption curves of methyl orange (MO) and analogous p-aminophenylazobenzenes in organic and aqueous organic solvents are shown to consist of two severely overlapping bands. The curves have been resolved into two skewed component bands using a r
Autor:
William H. Lawton, J. Edward Jackson
Publikováno v:
Technometrics. 11:91-102
Parzen [4] and others have noted the similarity between probability densities, spectral densities, and their sample estimates. In the familiar x 2 goodness-of-fit test one seeks to determine whether an observed sample distribution could reasonably ha
Autor:
Edward A. Sylvestre, William H. Lawton
Publikováno v:
Technometrics. 13:617-633
This paper presents a method for determining the shapes of two overlapping functions f 1(x) and f 2(x) from an observed set of additive mixtures, [α i f 1(x) + β i f 2(x); i = 1, …, n), of the two functions. This type of problem arises in the fie
Autor:
J. Edward Jackson, William H. Lawton
Publikováno v:
Technometrics. 11:75-90
Statistical spectral analysis is much like a Model II analysis of variance in that the total variability of a data set is broken down into a number of components, the amount of variability associated with various bands of frequencies. Using the spect