Proceedings of DeepKarst

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Anew and efficient method for the synthesis of novel 3-acetylcoumarins oxadiazoles derivatives Molecules. Application of Exp-function method for nonlinear evolution equations with variable coefficients Physics Letters A. New traveling wave solutions for nonlinear evolution equations Physics Letters A. Energy, 14 Energy, 15 An operational approach to the classical slowing-down problem. Kerntechnik 55 Abu El-Ela and A. Radiative transfer in an aerosol mediumS.

Research on Reactive and pollutant transport

Landowners no longer have an absolute right to use with impunity all water that can be pumped from the subsoil underneath. English Rule Overturned in Ohio Cline v. American Aggregates English Rule overturned in Ohio Justice Holmes Scientific knowledge in the field of hydrology has advanced in the past decade so it can establish the cause and effect relationship of the tapping of underground water to the existing water level.

Hydrogeology ; aquifers ; hydrochemistry ; isotopes ; hydrodynamics ; numerical modelling International Conferences – J. Insight into groundwater flow within a crystalline aquifer. Le Coustumer, Et M. Flow conditions, geochemistry and residence time of groundwater from a gneissic aquifer. Definition of a target resource for the drinking water supply of an African capital.

Rainwater chemistry and isotopic content in the French Basque Country. Coupling of geochemical and hydrodynamic tools for the numerical modelling of a fractured aquifer. Case study of Ursuya massif Southwestern France. Radium and radon constraints on submarine groundwater discharge in the Bonifaco aquifer, Corsica France.

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In this context of changing and challenging market requirements, Gas Insulated Substation GIS has found a broad range of applications in power systems for more than two decades because of its high reliability, easy maintenance and small ground space requirement etc. SF6 has been of considerable technological interest as an insulation medium in GIS because of its superior insulating properties, high dielectric strength at relatively low pressure and its thermal and chemical stability.

SF6 is generally found to be very sensitive to field perturbations such as those caused by conductor surface imperfections and by conducting particle contaminants.

Hydrology Stute, M. Helium in deep circulating groundwater in the Great Hungarian Plain: Flow dynamics and crustal and mantle He fluxes. Geochimica et Cosmochimica Acta, 56, Paleotemperatures in the southwestern United States derived from noble gas measurements in groundwater. Principles and application of the noble gas paleothermometer.

R. Purtschert

Regions Topics We are a collaboration of researchers from the Division of Geochemistry. We use tracers that are naturally present in the environment and deliberately-injected and transient tracers to investigate earth science problems in the areas of oceanography, continental waters, paleoclimatology, geochronology, and geology. Our History The Environmental Tracer Group evolved during the past decade around both methodology developments and scientific programs. Emphasis was on terrestrial applications of noble gas studies to a broad spectrum of scientific questions and applications.

The gases are well-mixed in the atmosphere so their input functions are not area-specific as is the case with tritium. While any one of these trace gases can in principle provide a groundwater age, when two or more are measured on water samples the potential exists to distinguish between different modes of flow including piston flow, exponential flow and simple end-member mixing.

As with all groundwater dating methods, caveats apply. Factors such as recharge temperature and elevation must be reasonably well-constrained. Primarily for the CFCs, local sources of contamination need to be considered, as do redox conditions. For both SF6 and the CFCs, the nature and thickness of the unsaturated zone need to be factored into residence time calculations. However, as an inexpensive dating method, the trace gases can be applied to a wide range of groundwater problems where traditional age indicators might once have been used more sparingly.

In the future, with the main CFCs are already declining in the atmosphere, new anthropogenic trace gases are likely to take their place.

Is Phosphorus

The hydrological conditions of the investigated area are determined by monoclinal structure of the geological formations. On the outcrop of the Muschelkalk formation, the aquifer is unconfined and the recharge rate and conductivity are relatively high. In the northern part of the aquifer, which is covered with a confining unit of the Keuper formation, the average hydraulic conductivity and the flow velocity decrease.

This updated study focused on a 30, Geological Survey Scientific Investigations Report — , 65 p. Groundwater discharge is the primary component of streamflow in the Loup River Basin and constitutes more than 90 percent of streamflow in the central part of the Sand Hills. Geological Survey Scientific Investigations Report — , 50 p.

The accumulated sediment behind Spencer Dam ordinarily is released semiannually; however, the spring Geological Survey Data Series , 11 p. As sediment is removed from reservoir storage, potential use of the sediment for socioeconomic or ecological benefit could potentially defray some costs of its removal Geological Survey Scientific Investigations Report — , 51 p. Army Corps of Engineers, St.

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She has two brothers, Frank Jr. She worked as a management trainee for Kmart in but quit after a few months and entered a beauty pageant. She won Miss Pacific Coast in and left the beauty pageant after the win. She has lived in California since Pacific Gas and Electric litigation[ edit ] Main article:

Scottish Journal of Geology, 41 1. Journal of African Earth Sciences, 32 1. Quarterly Journal of Engineering Geology and Hydrogeology, 34 4. Quarterly Journal of Engineering Geology and Hydrogeology, 32 2. International Journal of Water Resources Development, 13 2. Geological Society London Special Publications. Cummings, Oliver; Slaymaker, Tom, eds. Equality in Water and Sanitation Services. Handbook of land and water grabs in Africa.

London, UK, Routledge, , pp.

Investigating the age of water


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