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Creator | Title | Description | Subject | Date |
| 126 |
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Miller, Jan D. | Selective flotation of fossil resin from Wasatch Plateau high-volatile bituminous coal | Certain bituminous coals are known to contain appreciable quantities of natural fossil or subfossil resin. Such resinous coals are found in the western US, particularly the Wasatch Plateau coalfield of UT. Some of the seams in this field contain an average of 5% resin. This fossil resin has been r... | Bituminous coal; Wasatch Plateau; Resin | 1989 |
| 127 |
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Miller, Jan D. | Mineral processing fundamentals | The reported claims in several Russian articles that magnetic fields change the viscosity and other basic properties of water and as a result produce beneficial effects such as increased flotation rate, improved grades and recovery, and increased settling rates appear to be unfounded. This conclusi... | Minerals; Processing; Magnetic fields; Metallurgy; Water | 1971 |
| 128 |
 |
Chandran, Ravi | Fracture toughness of two Cr2Hf+Cr intermetallic composites as a function temperature | Fracture toughness as a function of temperature was evaluated for two Cr2Hf+Cr intermetallic composites, each in two different microstructural conditions. The proeutectic microstructures based on Cr-6.5Hf (at%) showed a significant increase in fracture toughness with an increase from room temperatur... | Fracture toughness; Fracture resistance; Intermetallic composites; Proeutectic microstructures; Eutectic microstructures | 1994 |
| 129 |
 |
Zhdanov, Michael S. | Underground imaging by frequency-domain electromagnetic migration | A new method of the resistivity imaging based on frequency-domain electromagnetic migration is developed. Electromagnetic (EM) migration involves downward diffusion of observed EM fields whose time flow has been reversed. Unlike downward analytical continuation, migration is a stable procedure tha... | | 1996-01-01 |
| 130 |
 |
Miller, Jan D. | Anisotropic character of talc surfaces as revealed by streaming potential measurements, atomic force microscopy, molecular dynamics simulations and contact angle measurements | A study of the interfacial properties of the basal plane and the edge surfaces of talc is described in this paper. The isoelectric points measured at two different crystallographic surfaces by the streaming potential method were found to be similar and exist at about pH 3.0. In the case of the edge... | Talc; Interfacial properties; Hydration; Atomic force microscopy; Molecular dynamics simulations; Edge surface; Basal plane | 2007 |
| 131 |
 |
Miller, Jan D. | Experimental evaluation of a mineral exposure model for crushed copper ores | Copper mineral inclusions dispersed in crushed ore particles have a certain size distribution (grain-size distribution). For efficient heap leaching processes, the crushing plant should be designed and operated to crush the ore to an appropriate particle-size distribution so that copper mineral grai... | Grains; Particles; Distribution | 2006 |
| 132 |
 |
Zhdanov, Michael S. | Integral equation method for 3D modeling of electromagnetic fields in complex structures with inhomogeneous background conductivity | We present a new formulation of the integral equation (IE) method for three-dimensional (3D) electromagnetic (EM) modeling in complex structures with inhomogeneous background conductivity (IBC). This method overcomes the standard limitation of the conventional IE method related to the use of a horiz... | 3-D modeling; Integral equation method; Marine controlled-source electromagnetic data; MCSEM; Gemini Prospect; Gulf of Mexico | 2006 |
| 133 |
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Miller, Jan D. | Development and application of centrifugal flotation systems in wastewater treatment | Flotation as a wastewater treatment technique is designed to remove all particles generally encountered as very fine emulsions, suspended solids, and colloids from wastewater. Historically, Dissolved Air Flotation (DAF) has been used to achieve this removal. More recently, other flotation techniques... | Wastewater treatment; Centrifugal flotation; Liquid cyclone mixing; Hybrid centrifugal dissolved-air flotation; ASH; BAF; GEM; FF | 2007 |
| 134 |
 |
Zhdanov, Michael S. | Three-dimensional regularized focusing inversion of gravity gradient tensor component data | We develop a new method for interpretation of tensor gravity field component data, based on regularized focusing inversion. The focusing inversion makes its possible to reconstruct a sharper image of the geological target than conventional maximum smoothness inversion. This new technique can be eff... | Focusing inversion; Gravity gradient; Gravity gradiometry | 2004 |
| 135 |
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Miller, Jan D. | Role of the hydrocarbon chain in anionic flotation of calcite | The response of calcite to flotation with saturated fatty acids and alkyl sulfonates of various chain lengths is presented. The amount of collector required for flotation is shown to decrease systematically with increasing carbon content from 8 to 12-carbon atoms per molecule. This systematic flot... | Hydrocarbon chain; Calcite; pH (Chemistry); Carbon | 1967 |
| 136 |
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Chapman, David S. | Geothermics and climate change: 1. Analysis of borehole temperatures with emphasis on resolving power | Temperature-depth data from six boreholes in western Utah and nine boreholes in southeastern Utah are reanalyzed for evidence of ground surface temperature (GST) histories. We invert the temperature-depth data using the functional space inverse algorithm of Shen and Beck [1991, 1992] which we prefer... | Surface air temperature; Ground surface temperature; Borehole temperatures; Geothermal observations; Geothermics | 1998 |
| 137 |
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Miller, Jan D. | Internal reflection spectroscopy for FTIR analysis of carboxylate adsorption by semi-soluble salt minerals | Flotation chemists have long sought to unravel the mechanisms of carboxylate collector adsorption by semi-soluble salt minerals. In particular, the adsorption density of adsorbed carboxylates, adsorption kinetics, speciation (chemisorbed, physisorbed), orientation, and conformation are of interest.... | Carboxylate collector adsorption; Salt minerals; Internal reflection spectroscopy | 1999 |
| 138 |
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Miller, Jan D. | Conformation of chemisorbed oleate at a calcite surface | The surface chemistry of the calcite/oleate flotation system was examined by in situ FT-NIR/IRS. Spectra of combination and overtone bands of aliphatic stretching vibrations revealed gauche/trans conformational changes that occurred solely as a function of temperature. The conformational changes wer... | Chemisorption; Oleate; Calcite; Gauche/trans conformation; Rotational isomerism | 2001 |
| 139 |
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Miller, Jan D. | Influence of surfactants on interaction forces between polyethylene surfaces in a hydrocarbon solvent | The polyolefins, mainly polyethylene and polypropylene particles, are used as an active filler material in polymer-polymer blends and are being used for the modification of asphalts to provide for high-load, low-maintenance road construction. The stability of prepared blends depends on the interact... | Surfactants; Asphalt; Polymer; Polyolefins | 2003 |
| 140 |
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Miller, Jan D. | Surfactant adsorption density calculation from Fourier transform infrared external reflection spectroscopy (FTIR/ERS) | An equation to calculate surfactant adsorption density from Fourier transform infrared external reflection spectra was established. The derivation and limitation of this equation are discussed in detail. The validation of the FTIR/ERS adsorption density equation was experimentally verified from t... | Surfactant; Adsorption density; Solid film | 2003 |
| 141 |
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Jewell, Paul | Geology and geothermal potential North of Wells, Nevada | This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency Thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, ... | Tertiary sediments; Siltstones; Conglomerates; Lithologies; Well logs; Aquifers; Step faults | 1982-01-01 |
| 142 |
 |
Miller, Jan D.; Lin, Chen-Luh | Development of a PC, image-based, on-line particle size analyzer | A PC, image-based, on-line instrument for measuring coarse particle size on a conveyor belt is under development. The hardware and software required to implement such a system are discussed, including the interface for the special image-acquisition hardware. The system concept is given with exampl... | | 1993 |
| 143 |
 |
Miller, Jan D. | Atomic force microscopy investigation of interaction forces between polyethylene and asphaltene surfaces | Many petroleum-derived asphalts used for road construction exhibit poor rheological properties. These properties of asphalt can be improved by addition of various polymer fillers to the asphalt blend. Recycled polyolefines, especially polyethylene and polypropylene have been used as the asphalt mo... | Asphalt; Rheology; Polyolefins | 2006 |
| 144 |
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Miller, Jan D. | Removal of volatile organic compounds from contaminated water using air-sparged hydrocyclone stripping technology | The air-sparged hydrocyclone (ASH) technology offers the unique opportunity to achieve efficient removal of volatile organic compounds (VOCs) from contaminated water at a high specific capacity, more than 100 times that of conventional air stripping technologies. VOC stripping is the first applicati... | Air-sparged hydrocyclone; Air stripping; Contaminated water | 1997 |
| 145 |
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Miller, Jan D. | Structure and composition of commercial copper chelate extractants | The structure, properties, and composition of commercial chelating-type copper extractants are examined. Characterization of these extractants was accomplished using organic separation techniques and analytical tools such as NMR and infrared spectroscopy. Results indicate that only the trans isomer ... | LIX® reagents; stoichiometry; reaction mechanism | 1973 |
| 146 |
 |
Miller, Jan D.; Lin, Chen-Luh | 3D analysis of particulates in mineral processing systems by cone beam X-ray microtomography | In general, x-ray computed tomographic (CT) techniques are able to provide 3D images of the internal structure of opaque materials in a nondestructive manner. The unique cone beam geometry allows acquisition of all 2D projections with only one rotation of the sample thus providing for fast data acqu... | X-ray microtomography; Liberation; Heap leaching; Exposure analysis; Coal washability | 2003 |
| 147 |
 |
Zhdanov, Michael | Large-scale 3D inversion of potential field data | Inversion of gravity and/or magnetic data attempts to recover the density and/or magnetic susceptibility distribution in a 3D earth model for subsequent geological interpretation. This is a challenging problem for a number of reasons. First, airborne gravity and magnetic surveys are characterized b... | | 2011 |
| 148 |
 |
Miller, Jan D. | Methodology for detailed liberation analysis in mineral processing technology | A transformation equation can be used to describe the relationship between the one, two and three dimensional information regarding the composition of mineral particles of specified size. Linear or areal grade distributions f(gi) can be transformed to an estimate of the volumetric grade distribution... | Volumetric grade; Grade; Distribution | 1986 |
| 149 |
 |
Brown, Francis Harold | Horizontal sediments of the lower Omo valley: the kibish formation | The existence of old lacustrine deposits in the Lake Rudolf Basin was first recognized by Hohnel et al. (1891 : 20f., 134) and subsequently confirmed by the work of M. Sacchi (Angelis and Millosevich, 1900) and E. Brumpt (Bourg de Bozas, 1903: 107ff.), Fuchs (1935, 1939), Champion (1937), and Aramb... | | 1969 |
| 150 |
 |
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 |
