Report issued by the Bureau of Mines over the effects of air blast vibrations. As stated in the abstract, "this report presents the results of the Bureau of Mines 10-year program to study the problem of air blast and ground vibrations generated by blasting" (p. 1). This report includes tables, and illustrations.
From Introduction: "The first objective of he present Bureau research was the development of a means to model random assemblies of circles and spheres that would accurately simulate actual particulate systems. The second objective of this research was to develop the computer simulations to the point where they could be used to predict real packaging or covering properties and to develop a body of data that could be used to improve and add to what is currently known about the statistical geometry of random particulate systems."
Report issued by the Bureau of Mines over studies of mill-tailings dams, and disposal. Methods and development of tailings dams are discussed. This report includes tables, charts, photographs, and illustrations.
Report discussing the proton NMR spectra of 32 pyridines in two solvents, carbon tetrachloride and bezene-d6, are presented. The chemical-shift and differential-shift values are correlated with the substitutent position and with the solvent media. The ring protons and the protons on alkyl substituents are tabulated. The paramagnetic shift of the protons adjacent to the nitrogen is discussed, and a proposed structure for the pyridine-benzene complex that is consistent with the observed anomalous paramagnetic shift is presented. The utility of the data in the identification of pyridine compounds found in shale-oil naphtha is demonstrated.
Report issued by the U.S. Bureau of Mines discussing sewage disposal and reuse. As stated in the introduction, "this paper describes the renovation of municipal sewage water for industrial use, and the use of subsurface waste disposal by an industrial complex and by a city" (p. 1). This report includes tables, and illustrations.
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