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Bai, M., and D. Elsworth, (1990). Some aspects of mining under aquifers in China. Min. Sci. and Tech., v. 10, pp. 81-91.
Bai, M., D. Elsworth, Z. Li, and N. Tomlin, (1990). Evaluation of stresses and displacements induced in discretely layered media. Int. J. R. Mechs. Min. Sci., v. 1 (1), pp. 23-31.
Burgess, C. E., and H. H. Schobert, (1990). Improved oil yields from subbituminous coal with novel hydrogen donor-containing catalysts. Abstracts of Papers of the American Chemical Society, 199, 6-FUEL.
Derek, H., R. T. Johns, and E. Pasternack, (1990 May 16-18). Comparative study of back-propagation neural network and statistical pattern recognition techniques in identifying sandstone lithofacies, in Proceedings 1990 Conference on Artificial Intelligence in Petroleum Exploration and Production, College Station, TX, Texas A&M University, pp. 41-49.
Elsworth, D. (1990). Theory of partially drained piezometer insertion, J. Geotech. Eng. Div., ASCE, v. 116 (6), pp. 899-914.
Elsworth, D., (1990). A comparative evaluation of the parallel flow and spherical reservoir models of HDR geothermal systems, Journal of Volcanology and Geothermal Res., v. 44, pp. 283-293.
Energy and Fuels Research Center, (1990). The Penn State Coal Sample Bank and Data Base, 2nd Ed. Penna. State Univ., 61 pp.
Garcia, A. B., and H. H. Schobert, (1990). Catalytic hydrodesulfurization of a high organic sulfur Turkish lignite: amount, form, and mechanism of sulfur removal. Fuel Processing Technology, v. 26, pp. 99-110.
Garcia, A. B., and H. H. Schobert, (1990). Effects of organic sulfur content on thermolysis and hydrogenolysis of lignites, Fuel Processing Technology, v. 24, pp. 179-186.
Glick, D. C., G. D. Mitchell, and A. Davis, (1990). Effects of Storage Methods on Coal Sample Preservation, The Society for Organic Petrography, Poster Session, Calgary, Canada.
Gorrini, B. C., L. R. Radovic, and A. L. Gordon, (1990). On the potassium-catalyzed gasification of a chilean bituminous coal, Fuel, v. 69 (6), pp. 789-91.
Hajisulaiman, M. Z., A. W. Scaroni, and S. Yavuzkurt, (1990). Optimum sulfation temperature for sorbents used in fluidized-bed coal combustion, Fuel Processing Technology, v. 25 (3), pp. 227-40.
Hatcher, P. G., (1990). Chemical structural models for coalified wood (vitrinite) in low rank coal, Organic Geochemistry, v. 16 (4-6), pp. 959-68.
Hobbs, B. E., A. Ord, and C. Marone, (1990 June). Dynamic behaviour of rock joints, Proc. Int. Symp. on Rock Joints, eds. N. R. Barton and O. Stephansson, Loen, Norway, pp. 435-445.
Kleit, A. N., (1990). The Effect of Annual Changes in Automobile Fuel Economy Standards, Journal of Regulatory Economics, v. 2, pp. 151-172.
Lvov, S. N., and R. H. Wood, (1990). Equation of state of aqueous NaCl-H2O system over a wide range of temperatures, pressures and concentrations, Fluid Phase Equil, v. 60, pp. 273-287.
Lvov, S. N., V. A. Umniashkin, A. Sharygin, and M. F. Holovko, (1990). The molecular statistical theory of infinitely dilute solutions based on the ion-dipole model with Lennard-Jones interaction, Fluid Phase Equilibria, v. 58, pp. 283-305.
Marone, C., C. B. Raleigh, and C. H. Scholz, (1990). Frictional behavior and constitutive modeling of simulated fault gouge, Journal Geophysical Research, v. 95, pp. 7007-7025.
Miller, B. G., D. E. Romans, and A. W. Scaroni, (1990 September 9-11). "Characterization of Limestones for FBC Systems," SO2 Emission Control Conf., National Stone Assoc., Pittsburgh, Pennsylvania.
Mitchell, G. D., and A. Davis, (1990 July). The Fluorescence Characterization of Asphalts, American Chemical Society Preprint, v. 35 (3), pp. 469-475, Washington, DC.
Morrison, J. L., E. G. Williams, A. W. Rose, A. Davis, R. R. Parizek, B. E. Scheetz, and D. W. Strickler, (1990). Predicting the Occurrence of Acid Mine Drainage in the Alleghenian Coal-Bearing Strata of Western Pennsylvania: An Assessment by Simulated Weathering (Leaching) Experiments and Overburden Characterization. In Advances in Coal Geochemistry (L.L. Chyi and C.-L. Chou, eds). Geological Society of America Special Papers, v. 248, pp. 87-99.
Morrison, J. L., S. D. Atkinson, A. Davis, and B. E. Scheetz, (1990). The Use of CO2 Coulometry in Differentiating and Quantifying the Carbonate Phases in the Coal-Bearing Strata of Western Pennsylvania: Its Applicability in Interpreting and Modifying Neutralization Potential (NP) Measurements, Proceedings of the 1990 Mining and Reclamation Conference and Exhibition, 2 Volumes, West Virginia University, Charleston, West Virginia, April 23-26, pp. 243-248.
Painter, P. C., J. Graf, and M. M. Coleman, (1990). Coal solubility and swelling: A model for coal swelling,Energy & Fuels, v. 4 (4), pp. 393-7.
Painter, P. C., J. Graf, and M. M. Coleman, (1990). Coal solubility and swelling. Solubility parameters for coal and the flory chi-parameter, Energy & Fuels, v. 4 (4), pp. 379-84.
Painter, P. C., Y. Park, M. Sobkowiak, and M. M. Coleman, (1990). Coal solubility and swelling. Effect of hydrogen-bonding on calculations of molecular-weight from swelling measurements, Energy & Fuels, v. 4 (4), pp. 384-93.
Rathbone, R. F., (1990). The Effects of Depositional Environment on Vitrinite Secondary Fluorescence. (MS)
Rimmer, S. M., and A. Davis, (1990). Relations Between Ash-Fusion Characteristics and Depositional Environments for an Appalachian Basin Coal Seam. In Recent Advances in Coal Geochemistry (L.L. Chyi and C.-L. Chou, eds), Geological Society of America Special Papers, v. 248, pp. 63-72.
Schobert, H. H., (1990). Structural features of low-rank coals, Resources Conservation and Recycling, v. 3 (2-3), pp. 111-23.
Suprun, M. M., I. A. Dibrov, and S. N. Lvov, (1990). The initial temperature coefficients of the thermo-e.m.f. and entropy of transport of electrolytes in aqueous solutions, Russian Journal of Physical Chemistry, v. 64, pp. 1226-1231.
Suprun, M. M., I. I. Dibrov, and S. N. Lvov, (1990). The stationary temperature coefficients of the thermo-e.m.f. and the entropy of the moving bromide ion in potassium bromide solution, Russian Journal of Physical Chemistry, v. 64, pp. 232-1236.
Xiang, J., and D. Elsworth, (1990). Low-order finite elements for parameter identification in groundwater flow, Applied Mathematical Modelling, v. 15 (5), pp. 256 - 266.
Xiang, J., and D. Elsworth, (1990). Parameter identification of nonsteady groundwater flow systems, Advances in Water Resources, v. 15, pp. 259-269.
Davis, A., R. F. Rathbone, R. Lin, and J. C. Quick, (1990). Observations Concerning the Nature of Maceral Fluorescence Alteration with Time. In Advances in Organic Geochemistry 1989 (B. Durand and F. Behar, eds), Org. Geochem., v. 16, pp. 897-906.
Davis, A., R. Lin, F. J. Derbyshire, and D. F. Bensley, (1989). Chemical and Technological Significance of the Fluorescence of Coal Macerals: Compte Rendu 11e Congr. Internat. Strat. Geol. Carbonif., Beijing (1987), v. 5, pp. 124-137.
Derbyshire, F., A. Davis, and R. Lin, (1989). Considerations of physicochemical phenomena in coal processing, Energy & Fuels, v. 3 (4), pp. 431-7.
Dibrov, I. A., M. M. Suprun, and S. N. Lvov, (1989). Activity coefficients of individual ions at high temperature, Russ. J. Phys. Chem., v. 63, pp. 3182-3185.
Elsworth, D. (1989). Thermal permeability enhancement of blocky rocks: plane and radial flow. Proceedings E.E.C. and C.N.R.S. Workshop of Fluid Flow Through Strong Fractured Rocks, Garchy, France, April. 24 pages. and Int. J. R. Mech. Min. Sci., v. 26 (3/4), pp. 329-339.
Elsworth, D. (1989). Thermal recovery from a multiple stimulated HDR reservoir, Geothermics, v. 18 (5/6), pp. 761-774.
Elsworth, D., (1989). Theory of thermal recovery from a spherically stimulated HDR reservoir, Journal of Geophys. Res., v. 94 (B2), pp. 1927-1934.
Elsworth, D., and J. Xiang, (1989). A reduced degree of freedom model for permeability enhancement in blocky rock, Geothermics, v. 18 (5/6), pp. 691-709.
Garcia, A. B., and H. H. Schobert, (1989). Comparative performance of impregnated molyb-denum-sulfur catalysts in hydrogenation of Spanish lignite, Fuel, v. 68, pp. 1613-1616.
Garcia, A. B., and H. H. Schobert, (1989). Hydrodesulfurization of Spanish lignite with a high organic sulfur content, Coal Preparation, v. 7, pp. 47-54.
Ismail, I. M. K., and P. L. Walker, (1989). D.s.c. and TGA measurements of O2 interaction with coal chars. Fuel, 68, (11), 1456-60.
Johns, R. T., (1989 April). Comparison of pressure transient response in intensely and sparsely fractured reservoirs, MS Report, Stanford University, 46 pp.
Johns, R. T., and Y. Jalali-Yazdi, (1989 April 5-7). Comparison of pressure-transient response in intensely and sparsely fractured reservoirs, Society of Petroleum Engineering California Regional Mtg., SPE No. 18800, Bakersfield, CA, pp. 545-551.
Johns, R. T., and Y. Jalali-Yazdi, (1989 January 24-26). Comparison of pressure transient response in intensely and sparsely fractured reservoirs, 14th Workshop on Geothermal Reservoir Eng., Stanford, CA, 7 pp.
Lee, C. W., and R. G. Jenkins, (1989). Effect of acid treatment atmosphere on the thermoplasticity of a low-volatile bituminous coal, Energy & Fuels, v. 3 (6), pp. 703-6.
Levine, J. R., and A. Davis, (1989). Reflectance Anisotropy of Upper Carboniferous Coals in the Appalachian Foreland Basin, Pennsylvania, U.S.A. International Journal of Coal Geology, v. 13, pp. 341-373; v. 16, pp. 201-204.
Levine, J. R., and A. Davis, (1989). The relationship of coal optical fabrics to alleghanian tectonic deformation in the central appalachian fold-and-thrust belt, Pennsylvania, Geological Society of America Bulletin, v. 101 (10), pp. 1333-47.
Long, R. P., and D. D. Davis, (1989). Major and trace-element concentrations in surface organic layers, mineral soil, and white oak xylem downwind from a coal-fired power-plant, Canadian Journal of Forest Research-Revue Canadienne De Recherche Forestiere, v. 19 (12), pp. 1603-15.