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Creator | Title | Description | Subject | Date |
| 176 |
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Miller, Jan D. | New developments in mixing, flocculation and flotation for industrial wastewater pretreatment and municipal wastewater treatment | Solid/liquid separations are commonly the first step in any wastewater treatment. Such technologies are mature and new developments are rare. However, in the last decade some significant improvements in separation techniques for industrial waste water pretreatment have been implemented. Advances in ... | Wastewater treatment; Flocculation; Flotation; Industrial wastewater pretreatment; Sludge thickening; Mixing | 2005 |
| 177 |
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Garrett, Timothy J. | No way out? the double-bind in seeking global prosperity alongside mitigated climate change | In a prior study (Garrett, 2011), I introduced a simple economic growth model designed to be consistent with general thermodynamic laws. Unlike traditional economic models, civilization is viewed only as a well-mixed global whole with no distinction made between individual nations, economic sectors,... | | 2012-01-01 |
| 178 |
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Miller, Jan D. | Noncyanide leaching of an auriferous pyrite ore from Ecuador | Gold leaching of an auriferous pyrite ore from the Portovelo deposit in Ecuador indicates that noncyanide leaching systems, such as thiocyanate and thiourea, are not as effective as the traditional cyanide system. For example, whereas approximately 95% of the gold can be leached from the ore with cy... | Gold leaching; Refractory ores; Thiocyanate; Thiourea | 2000 |
| 179 |
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Miller, Jan D. | Nonsulfide flotation technology and plant practice | There are hundreds of nonsulfide mineral flotation plants throughout the United States, and most have a plant design that depends upon the specific ore characteristics and the market specifications for their product. There is no common thread of technology between the design and processing of diffe... | Flotation; Minerals; Processing plants | 2002 |
| 180 |
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Zhdanov, Michael S. | Novel approach to the model appraisal and resolution analysis of regularized geophysical inversion | The existing techniques for appraisal of geophysical inverse images are based on calculating the model resolution and the model covariance matrices. In some applications, however, it becomes desirable to evaluate the upper bounds of the variations in the solution of the inverse problem. It is possib... | Geophysical inversion; Electromagnetic modeling; Cauchy inequality; Resolution analysis; Lanczos decomposition method; SLDM; Voisey's Bay; 3-D modeling | 2006 |
| 181 |
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Garrett, Timothy J. | Novel basis for interpreting recent acceleration of anthropogenic carbon dioxide emissions | This paper presents a simple thermodynamic model for understanding economic and carbon dioxide emissions growth. | Thermodynamics; Economics; Climate; Growth | 2008 |
| 182 |
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Miller, Jan D.; Yost, Garold S.; Veranth, John M. | Novel method to detect unlabeled inorganic nanoparticles and submicron particles in tissue by sedimentation field-flow fractionation | A novel methodology to detect unlabeled inorganic nanoparticles was experimentally demonstrated using a mixture of nano-sized (70 nm) and submicron (250 nm) silicon dioxide particles added to mammalian tissue. The size and concentration of environmentally relevant inorganic particles in a tissue sa... | Sedimentation field-flow fractionation; Transmission electron microscopy; Tissue digestion | 2008 |
| 183 |
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Brown, Francis Harold | Observations on the stratigraphy and rediometric age of the omo beds, lower omo basin, southern Ethiopia | During September and October, 1966, the author measured a stratigraphic section for a portion of the Omo Beds, as exposed north of Kalam, Ethiopia. Additional field observations were also made at the time in other parts of the lower Omo Basin. Samples were collected for analysis and for radiometric ... | | 1969 |
| 184 |
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Garrett, Timothy J. | Observed influence of riming, temperature, and turbulence on the fallspeed of solid precipitation | Forecasts of the amount and geographic distribution of snow are highly sensitive to a model's parameterization of hydrometeor fallspeed. Riming is generally thought to lead to particles with a higher mass and terminal velocity. Yet models commonly assume that heavily rimed particles such as graupel ... | | 2014-01-01 |
| 185 |
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Brown, Francis Harold | On the environment of Aramis a comment on White in Domínguez-Rodrigo | Department of Geology, University of Utah, 115 South 1460 East, Room 383 Sutton Building, Salt Lake City, Utah 84112, U.S.A. (Cerling and Brown) (thure.cerling@utah.edu)/ Department of Geology, University of South Florida, Tampa, Florida 33620, U.S.A. (Wynn). This paper was submitted 9 I 14 and acce... | | 2014-01-01 |
| 186 |
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Miller, Jan D.; Lin, Chen-Luh | On-line washability analysis for the control of coarse coal cleaning circuits | In view of the success of recent laboratory studies using X-ray computed tomography (CT) to determine coal washability and with the availability of high-speed CT systems, it now seems possible to design an on-stream washability system for the control of coarse coal-cleaning circuits. Design features... | On-stream washability; CT analyzer; Coal washability | 1995 |
| 187 |
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Rajamani, Raj | Online SAG mill pulse measurement and optimization semi-annual technical progress report | The grinding efficiency of semi autogenous milling or ball milling depends on the tumbling motion of the total charge within the mill. Utilization of this tumbling motion for efficient breakage of particles depends on the conditions inside the mill. However, any kind of monitoring device to measure... | | 2006 |
| 188 |
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Jarrard, Richard D. | Origin of seismic reflectors within carbonate-rich sediments from northeastern Australian margin | We use continuous velocity records from 12 sites and continuous density records from 9 sites from Ocean Drilling Program (ODP) Leg 133 to examine both direct and indirect controls on seismic reflectors and depth-to-time conversion for the northeastern Australian margin. In these carbonate-rich sedim... | | 1993 |
| 189 |
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Jewell, Paul | Paleoredox conditions and the origin of bedded barites along the Late Devonian North American continental margin | The most important controls of the redox state of natural waters are the flux of organic matter from the photic zone, the degree of physical mixing, and oxygen concentrations of any connecting water masses. In coastal upwelling zones, these factors can be described with a simple box model constraine... | Bedded barites; Late Devonian; Continental margin; Redox state | 1994 |
| 190 |
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Zhdanov, Michael S. | Parameter estimation for 3-D geoelectromagnetic inverse problems | Parameter estimation in geoelectromagnetics aims to obtain the most important parameters of a well-defined conductivity model of the Earth. These parameters are features of typical geological structures, such as depth and size of conductive or resistive targets, angle of dike inclination and its le... | | 1999-01-01 |
| 191 |
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Miller, Jan D. | Particle damage and exposure analysis in HPGR crushing of selected copper ores for column leaching | In mining operations, jaw and gyratory crushers are generally used for primary crushing, and cone crushers are used for secondary crushing. During the past decade, however, High-Pressure Grinding Rolls (HPGR) are being considered due to potential processing benefits such as energy savings, improved ... | | 2011-01-01 |
| 192 |
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Miller, Jan D. | Particle interactions in kaolinite suspensions and corresponding aggregate structures | The surface charge densities of the silica face surface and the alumina face surface of kaolinite 13 particles, recently determined from surface force measurements using atomic force microscopy, 14 show a distinct dependence on the pH of the system. The silica face was found to be negatively 15 char... | | 2011-01-01 |
| 193 |
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Miller, Jan D.; Lin, Chen-Luh | Particle size distribution for copper heap leaching operations as established from 3D mineral exposure analysis by X-ray microCT | The particle size distribution (PSD) for copper heap leaching is an important consideration in the design and operation of any copper heap leaching facility. High-resolution 3D X-ray microtomography (XMT) can be used for the direct determination of the percentage of exposed valuable mineral grains i... | Particle size distribution; Leaching; X-ray microtomography | 2003 |
| 194 |
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Miller, Jan D. | Particle size segregation on a belt conveyor | Particle size segregation is a common phenomenon in many particulate processes and has many undesirable effects. The size segregation which occurs on a belt conveyor causes a serious problem for on-line particle size measurement using image-based techniques. Whether particle size distributions mea... | Particles; Size; Belt conveyors; Modelling | 1997 |
| 195 |
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Miller, Jan D.; Lin, Chen-Luh; Yu, Qiang | PC image-based analysis system for particle characterization of deinked pulps | A low cost PC image-based particle analysis system is being developed for particle characterization of deinked pulps at the University of Utah. Initial R&D efforts of such an image analysis system were made for on-line particle characterization in the mineral processing field but now it has been fo... | Deinking; Paper pulp; Wastepaper; Image-based particle analysis | 1993 |
| 196 |
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Solomon, Douglas Kip | Persistence of artificial sweeteners in a 15-year-old septic system plume | Groundwater contamination from constituents such as NO3 -, often occurs where multiple sources are present making source identification difficult. This study examines a suite of major ions and trace organic constituents within a well defined septic system plume in southern Ontario, Canada (Long Poin... | | 2013-01-01 |
| 197 |
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Miller, Jan D. | Pilot-plant evaluation of a water insoluble hydroxamic acid collector for single stage flotation of Florida phosphate rock | Recent laboratory results have demonstrated that selective flotation of phosphate rock can be achieved in a single stage with improved separation efficiency when compared to the standard double float process. The new reagent chemistry is based on the use of a water insoluble alcoholic solution of ... | Phosphate rock; Flotation; Double float; Separation | 2006 |
| 198 |
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Brown, Francis Harold | Pleistocene rhyolite of the mineral mountains, Utah geothermal and archeological significance | | | 1978 |
| 199 |
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Brown, Francis Harold | Pliocene/pleistocene formations in the lower omo basin, southern Ethiopia | Following a two month geological reconnaissance by one of us (FHB) in 1966, four seasons of fieldwork by members of the Omo Research Expedition has added greatly to our previous, scanty knowledge of the late Cenozoic history of the lower Omo basin in southern Ethiopia. Eduard Suess (in: von Hohnel ... | | 1970 |
| 200 |
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Miller, Jan D.; Hupka, Jan | Potential of air-sparged hydrocyclone flotation in environmental technology | Air-sparged hydrocyclone (ASH) flotation is a high capacity flotation technology originally developed in the Department of Metallurgical Engineering at the University of Utah for processing mineral resources. However, the technology has been found to be useful in industrial waste processing, recycli... | De-inking; Capacity; Recycling | 1992 |
