Boulders

Nesvijski, E.G., Nogin, S.I. Acoustic Emission Technics for Nondestructive Evaluation of Stress of Concrete and Reinforced Concrete Structures and Materials. Third Conference on Nondestructive Evaluation of Civil Structures and Materials, Boulder, CO, 1996. Nesvijski, E. G. Failure Forecast and the Acoustic Emission Silence Effect in Concrete. ASNT s Spring Conference, Houston, TX, 1997. 

M. J. Sagers and T. Shabad, The ChemicalIndusty in the UAAR, ACS Professional Reference Book, Westview Press, Boulder, San Francisco and Oxford, 1990. 

The raw ROM (run of mine) ore is reduced in size from boulders of up to 100 cm in diameter to about 0.5 cm using jaw cmshers as weU as cone, gyratory, or roU-type equipment. The cmshed product is further pulverized using rod mills and ball mills, bringing particle sizes to finer than about 65 mesh (230 p.m). These size reduction (qv) procedures are collectively known as comminution processes. Their primary objective is to generate mineral grains that are discrete and Hberated from one another (11). Liberation is essential for the exploitation of individual mineral properties in the separation process. At the same time, particles at such fine sizes can be more readily buoyed to the top of the flotation ceU by air bubbles that adhere to them. 

K. R. Kaufman, in E. D. Shult2 and R. P. Morgan, eds.. Fuels and Chemicals from Oil Seeds Technology andPoliy Options, Westview Press, Boulder, Colo., 1982, pp. 143-174. 

W. T. Ziegler, G. N. Brown, and J. D. Garber, Calculation of the Hapor Pressure and Heats ofHapori ation and Sublimation ofdquids and Solids Pelow One Htmosphere Pressure. IX. Neon, Tech. Report No. 1, Contract No. CST-7973, U.S. National Bureau of Standards, Boulder, Colo., 1970. 

Below One Atmosphere Pressure II, Afgon, Tech. ReportNo. 2, ContractNo. CST-7238, U.S. National Bureau ofStandards, Boulder, Colo.,June 1962. 

Most limestone quarries use either 100% ammonium nitrate [6484-52-2] (fertilizer grade) and fuel oil (ANFO), or a combination of ANFO and ammonium or gelatin dynamite, for blasting (see Explosives and propellants, explosives). After blasting, oversized boulders usually are reduced to manageable sizes by drop ball cranes. 

National Conference on Standards Laboratories c/o National Institute of Standards and Technology Boulder, Colo. 80303... 

U.S. Metric Association Sugadoad Star Route Boulder, Colo. 80302... 

C-Y. Ho and Y. S. Touloukian, Proceedings ofithe 5th PiennialInternational CODMTA Conference, Boulder, Colo., 1977, pp. 615—627. 

Other excellent summaries describing what is known of the formation processes and geological setting of these deposits have also been assembled (30—32). Listings of nodule compositions for these and other areas have been compiled (33,34). Eor many sites these data are available as computer databases (qv) maintained by the NOAA National Geophysical Data Center in Boulder, Colorado. 

A. GuUiford, Boomtown Blues Colorado Oil Shale, 1885—1985, University Press of Colorado, Boulder, 1989. 

L. A. Webber, Thermodynamic and Eelated Properties of Ouygen fromTripk Point to 500 K at Pressures to 1000 Bar, NASA Reference Pubheation 1011, NBSIR 77—865, National Bureau of Standards, Boulder, Colo., 1977. 

R. B. Diver, ia Progress in SolarEnerg Technologies and Applications An Authoritative Keview, American Solar Eaergy Society, Boulder, Colo., Jan. 1994. 

K. W. yidvances in Solar nerg Jin Jinnual Keview ofKesearch and Development Vol. 7, American Solar Energy Society, Boulder, Colo., 1992. 

G. Thomas and co-workers. Proceedings of the 6th International Materials Symposium on Ceramic Microstructures Berkeley, Calif., Aug. 24—27,1976, Westview Press, Boulder, Colo., 1977. 

Some values read from charts may he approximate. Cp values interpolated and converted from Theimodynamic Fropetiies of KLEA 32, I.C.L, 1993 (47 pp-)- Viscosity interpolated from Takahashi, M., C. Yokoyama, et al., Free. 14th Symp. Theimophys. Frops., Japan, 1993 (pp. 427-430). Thermal conductivities are taken from Geller, V Z. and M. E. Perlaitis, and from Gross, Froc. 10th Symp. Theimophys. Frops., Boulder, CO, 1994. 

Cyclopentene oxide is purchased from Arapahoe Chemicals, Boulder, CO, and used without purification. The checkers bought cyclopentene oxide from Lancaster Synthesis. 

Sharpton, V.L., and Ward, P.D. (Eds.) (1990), Global Catastrophes in Earth History An Interdisciplinary Conference on Impacts, Volcanism, and Mass Mortality, pp. 1-631, Special Paper 247, The Geological Society of America, Boulder, Colorado, 1990. 

R. H. Shapiro, University of Colorado, Boulder, personal communication. 

Department of Chemistry University of Colorado Boulder, Colorado... 

Lead Tetraacetate Degradation A solution of 10 g of 3a, 17a, 20-trihydroxy-5j5-pregnan-ll-one in 100 ml of glacial acetic acid is treated with a solution of 14.1 g of lead tetraacetate (Arapahoe Chemicals Inc., Boulder, Colorado 85-90% active material) in acetic acid at room temperature and the resulting solution is allowed to stand overnight. Several volumes of water are then added and the mixture is extracted thoroughly... 

GerSll, Gerolle, n. gravel, shingle, boulders rubble, rubbish. 

Roll-kolander, m. roller calender (Paper) supercalender, -mass, n. (coiled) tape measure. -reibung, /. rolling friction, -schicht, /. upright course (bricks set on end), -stein, m. boulder, -wagen, m. truck, lorry, -wider-stand, m. resistance to rolling rolling friction. 

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