Search Results

You are looking at 1 - 10 of 489 items :

  • "data compilation" x
Clear All

12 Data Compilations The maximum compressive principal stress trends easterly to northeasterly and is nearly horizontal for a region extending from west of the Appala­ chian Mountain system to central North America —Marc Sbar and Lynn Sykes (1973) after making the first regional compilation of data on earth stress in the North American Iithospheric plate Compilations of stress data vary in detail depending on the scale and purpose of the compilation. On the largest scale, a global compilation, data may come from several types of stress measurements and

levels within the total structure of the system" (1963:574). In general, I have followed these suggestions in the present research, although not always within the identical sequence. METHODS OF DATA COMPILATION 25 2.1. THE COMPILATION OF THE INVENTORY OF NUMERAL CLASSIFIERS While there may be general agreement concerning the initial step of compiling the ". . . raw lexicographic data . . ." (Lounsbury 1963:574) or ".. . the recording of a complete set ... of the terms ..." (Wallace and Atkins 1960:60) or ". . . determining the universe . . ." (Goodenough 1956

Solubility Data Compilations for the Practicing Chemist by Heinz Gamsjäger, John W. Lorimer, and David G. Shaw Phenomena related to the solubility of solids, liquids, and gases with one another are of interest to scientists, technologists, and medical practitioners in a wide array of disciplines. Solubility data are, for example, employed to determine thermodynamic quantities, and to predict the safety of radioactive waste repositories as well as to assess the effectiveness of a given pharmacological treatment. Clearly, the end users of solubility

The IUPAC-NIST Solubility Data Series (SDS) is an ongoing project that provides comprehensive reviews of published data for solubilities of gases, liquids, and solids in liquids or solids. Data are compiled in a uniform format, evaluated, and, where data from independent sources agree sufficiently, recommended values are proposed. This paper is a guide to the SDS and is intended for the benefit of both those who use the SDS as a source of critically evaluated solubility data and who prepare compilations and evaluations for future volumes. A major portion of this paper presents terminology and nomenclature currently recommended by IUPAC and other international bodies and relates these to obsolete forms that appear in the older solubility literature. In addition, this paper presents a detailed guide to the criteria and procedures used in data compilation, evaluation, and presentation and considers special features of solubility in gas + liquid, liquid + liquid, and solid + liquid systems. In the past, much of this information was included in introductory sections of individual volumes of the SDS. However, to eliminate repetitive publication, this information has been collected, updated, and expanded for separate publication here.

The Scientific Journal of IUPAC

Abstract

A compilation of available experimental data for acetone-water mixtures with the reciprocal salt system Na+, K+ || Cl, SO4 2− is presented. Significant inconsistencies among experimental data are pointed out. New freezing point measurements are reported for the binary acetone-water system at 12 different compositions. UNIQUAC parameters are determined on the basis of the available data from literature. Modeling results are presented. Vapor-liquid, liquid-liquid, and solid-liquid equilibria together with thermal properties are reproduced well by the model using only 14 parameters. The major drawback of the model is that the calculated liquid-liquid equilibrium regions of systems with KCl and NaCl are larger than the experimentally determined regions. The model is valid in the temperature range from −16 to 100 °C.

solids in liquids. These volumes rep- resent one of the largest collections of chemical property data ever produced and are the result of work of scientists throughout the world. In 1998, IUPAC signed an agreement with the National Institute of Standards and Technology (NIST) to continue the series by replac- ing the monographs by articles in the Journal of Physical and Chemical Reference Data. Five data compilations have already been published in the Journal, and many more are under way. Recently, IUPAC and NIST have concluded another agreement about computerizing all

process for thermodynamic data lays the foundation for implementation of the new concept of dynamic data evaluation formulated at NIST/TRC, which requires the development of large electronic databases ca- pable of storing essentially all “raw” experimental data known to date with detailed descrip- tions of relevant metadata and uncertainties. The combination of these databases with expert software designed primarily to generate recommended data based on available “raw” exper- imental data and their uncertainties leads to the possibility of producing data compilations

. While state officials have repeatedly criticised the “banality” of its material, the government recently felt obliged to dis- tribute its own alternative weekly data compilation called Mochila (backpack) via its youth computer clubs and official cybercafés. I there- fore seek to understand El Paquete as an arena in which the relation- ships between citizenry and the state are currently being re-negotiated. Introduction Internet access for ordinary Cubans has been restricted by three main causes: government policies that ban all independent private media for fear of

How We Are Misled by African Development Statistics and What to Do about It