A memoir on the expediency and practicability of improving or creating home markets for the sale of agricultural productions and raw materials, by the introduction or growth of artizans and manufacturers /

Goldsmiths'-Kress no. 24446.40.

Methods of testing mineral aggregates and associated materials. [Prepared for the Committee on Correlation of Research in Mineral Aggregates of the Highway Research Board, National Research Council.

In 7 divisions, 1 and 7 originally issued July 18, 1930, and Nov. 26, 1929; each division with caption title: Symposium of test methods on coarse aggregates.

Reports and academic materials prepared by Michigan State University Advisory Group.

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Report of the Tests of Metals and Other Materials for Industrial Purposes, Made with the United States Testing Machine at Watertown Arsenal, Massachusetts

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The law in business problems; cases and other materials for the study of legal aspects of business,

--Introductory topics.--I. Engaging in business.--II. The law of contracts with special reference to the relation of buyer and seller.--III. The enforcement of contracts with special reference to the relation of debtor and creditor.--IV. The law of business organization.

Cases and other materials on the law of conveyances /

"Table of cases": p. vii-xi.

Cases and other materials on judicial remedies, from the forms of actions and the classical equity practice to the Federal rules of civil procedure,

"Tables of cases": p. 1295-1301. "Table of statutes, constitutional provisions and rules of court": p. 1303-1309

Political and civil rights in the United States; a collection of legal and related materials,

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Public Construction and Construction Materials

Title Varies: Construction Materials; Construction Materials & Public Construction Summary

Construction and Construction Materials

Successively Issued by: U.S. Bureau of Foreign and Domestic Commerce; U.S. Dept. of Commerce. Office of Domestic Commerce; U.S. Bureau of Foreign and Domestic Commerce

Cases and other materials on security,

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Improvement of the Derjaguin-Broekhoff-de Boer theory for capillary condensation/evaporation of nitrogen in mesoporous systems and its implications for pore size analysis of MCM-41 silicas and related materials

In this work, we propose an improvement of the classical Derjaguin-Broekhoff-de Boer (DBdB) theory for capillary condensation/evaporation in mesoporous systems. The primary idea of this improvement is to employ the Gibbs-Tolman-Koenig-Buff equation to predict the surface tension changes in mesopores. In addition, the statistical film thickness (so-called t-curve) evaluated accurately on the basis of the adsorption isotherms measured for the MCM-41 materials is used instead of the originally proposed t-curve (to take into account the excess of the chemical potential due to the surface forces). It is shown that the aforementioned modifications of the original DBdB theory have significant implications for the pore size analysis of mesoporous solids. To verify our improvement of the DBdB pore size analysis method (IDBdB), a series of the calcined MCM-41 samples, which are well-defined materials with hexagonally ordered cylindrical mesopores, were used for the evaluation of the pore size distributions. The correlation of the IDBdB method with the empirically calibrated Kruk-Jaroniec-Sayari (KJS) relationship is very good in the range of small mesopores. So, a major advantage of the IDBdB method is its applicability for small mesopores as well as for the mesopore range beyond that established by the KJS calibration, i.e., for mesopore radii greater than similar to4.5 nm. The comparison of the IDBdB results with experimental data reported by Kruk and Jaroniec for capillary condensation/evaporation as well as with the results from nonlocal density functional theory developed by Neimark et al. clearly justifies our approach. Note that the proposed improvement of the classical DBdB method preserves its original simplicity and simultaneously ensures a significant improvement of the pore size analysis, which is confirmed by the independent estimation of the mean pore size by the powder X-ray diffraction method.