Evaluation of metal volumetric standards used in the measurement of liquid hydrocarbons : a report of a U.S. National Bureau of Standards and American Petroleum Institute research associate project /

Mode of access: Internet.

Standardization and measurement services in the Sudan /

"Issued August 1980."

Letters addressed to the Right Hon. Lord Alvanley, on his pamphlet entitled The state of Ireland considered, and measures proposed for restoring tranquillity to that country /

Includes bibliographical references.

Journal of research of the National Institute of Standards and Technology.

World textile abstracts

The struggle of'72 : The issues and candidates of the present political campaign: containing biographical sketches of all the candidates for president and vice-president; history and platforms of the great political parties; facts about public men and measures; review of Grant's administration; the queer record of Horace Greeley /

Microform.

Treatises upon several subjects : viz.: Reason and religion, or, the grounds and measures of devotion ; reflections upon the conduct of human life ... /

Several parts have separate title pages.

Tabulae atomicae : the chemical tables for the calculation of quantitative analyses of H. Rose. Recalculated for the more recent determinations of atomic weights, and with other alterations and additions /

Mode of access: Internet.

The general grievances and oppression of the isles of Orkney and Shetland /

Part II (p. 99-112) deals with the scat, or ancient land-tax levied in the Shetland Islands.

Preston's cubical estimates of boxes, bales, and casks : adapted to the use of merchants and carriers /

Goldsmiths'-Kress no. 26736.10.

Dialogue on democracy, in which the democratic principle is defined and applied as a touchstone to party-men and measures.

A dialogue between a Democrat and a Whig.

Tables, meteorological and physical,

The last edition published in this form. The next edition issued in three separate volumes: Meteorological tables, 1893; Geographical tables, 1899; Physical tables, 1896.

Units of weight and measure (United States customary and metric). Definitions and tables of equivalents.

Vol. for 1914 has supplement (publ. 1917).

Uniform laws and regulations /

Imprint varies: Washington, D.C., 1984-19 ; Gaithersburg, MD <1996->

Zero weights and non-zero slacks:different solution to the same problem

This paper re-assesses three independently developed approaches that are aimed at solving the problem of zero-weights or non-zero slacks in Data Envelopment Analysis (DEA). The methods are weights restricted, non-radial and extended facet DEA models. Weights restricted DEA models are dual to envelopment DEA models with restrictions on the dual variables (DEA weights) aimed at avoiding zero values for those weights; non-radial DEA models are envelopment models which avoid non-zero slacks in the input-output constraints. Finally, extended facet DEA models recognize that only projections on facets of full dimension correspond to well defined rates of substitution/transformation between all inputs/outputs which in turn correspond to non-zero weights in the multiplier version of the DEA model. We demonstrate how these methods are equivalent, not only in their aim but also in the solutions they yield. In addition, we show that the aforementioned methods modify the production frontier by extending existing facets or creating unobserved facets. Further we propose a new approach that uses weight restrictions to extend existing facets. This approach has some advantages in computational terms, because extended facet models normally make use of mixed integer programming models, which are computationally demanding.