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  • Artikel  (195)
  • Blackwell Publishing Ltd  (195)
  • American Meteorological Society
  • Springer Nature
  • Springer Science + Business Media
  • 2015-2019
  • 1985-1989  (195)
  • 1985  (195)
  • 1964
  • Energietechnik  (164)
  • Maschinenbau  (31)
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  • Artikel  (195)
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  • 1
    Digitale Medien
    Digitale Medien
    AN IMPROVED METHOD FOR SLUG TESTS IN SMALL-DIAMETER PIEZOMETERS (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 23 (1985), S. 0 
    Details
    ISSN: 1745-6584
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik , Geologie und Paläontologie
    Notizen: . The use of a small packer in slug tests can improve the quality of time versus head level measurements, particularly during the important early stages of the test. The packer is placed in the piezometer below the static water level and inflated. Water is then added to the piezometer until it is full to the top of the casing. The packer is deflated and the times for the water level to reach selected depths are measured with an electric sonde.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1745-6584.1985.tb01961.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    AUTOMATED DERIVATION OF PARAMETERS IN A NONLEAKY CONFINED AQUIFER WITH TRANSIENT FLOW (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 23 (1985), S. 0 
    Details
    ISSN: 1745-6584
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik , Geologie und Paläontologie
    Notizen: .Values of transmissivity and storage commonly are derived for a nonleaky confined aquifer by manual curve matching of pumping-test data. Automatic matching of pumping-test data with the Theis type curve is possible using the method of least squares, provided the Cooper-Jacob approximation of the well function W(u) is considered. A FORTRAN program was developed to carry out this automated matching. Results derived from published data show that the method gives parameters close to the ones derived by the standard method of manual curve matching.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1745-6584.1985.tb01963.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    OVER VIEW OF GROUND-WATER AVAILABLITY IN THE UNITED STATE (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 23 (1985), S. 0 
    Details
    ISSN: 1745-6584
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik , Geologie und Paläontologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1745-6584.1985.tb01964.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    POLLYANNA? NO — REALISTIC OPTIMIST? YES (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 23 (1985), S. 0 
    Details
    ISSN: 1745-6584
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik , Geologie und Paläontologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1745-6584.1985.tb01505.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Septic Tank Density and Ground-Water Contamination (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 23 (1985), S. 0 
    Details
    ISSN: 1745-6584
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik , Geologie und Paläontologie
    Notizen: As more and more cases of ground-water contamination are reported, the public has become increasingly aware of the importance of preserving the quality of this limited resource, especially in areas totally dependent on ground-water sources. Although most of the attention is focused on pollution by organic chemicals, these compounds are responsible for a relatively small percentage of ground-water-related disease outbreaks. The majority of waterborne disease outbreaks are caused by bacteria and viruses present in domestic sewage. Septic tanks contribute the largest volume of waste water, 800 billion gallons per year to the subsurface, and are the most frequently reported cause of ground-water contamination associated with disease outbreaks. The U.S. Environmental Protection Agency has designated areas with septic tank densities of greater than 40 systems per mi2 (1 system per 16 acres) as regions of potential ground-water contamination. Numerous cases of ground-water contamination have been reported in areas of high septic tank density; lot sizes in these areas range from less than one-quarter acre to three acres. The single most important means of limiting ground-water contamination by septic tanks is to restrict the density of these systems in an area.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1745-6584.1985.tb01506.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    A Hydraulic Trap for Preventing Collector Well Contamination: A Case Study (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 23 (1985), S. 0 
    Details
    ISSN: 1745-6584
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik , Geologie und Paläontologie
    Notizen: A hydraulic trap in the form of a purge well is proposed for the Forwell collector well K-71. The trap, which will protect well K-71 from contamination by contaminants migrating downgradient from the old Breslube waste disposal site, is based on a qualitative flow net obtained from a finite-element model of the Forwell Aquifer. The trap constitutes pumping at the position of observation well OW 9-80 at a continuous rate of at least 6.1 X 10-3 m3/s. The uniqueness of the trap lies in its simplicity and relatively low cost.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1745-6584.1985.tb01508.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Use of Rain and Dry Deposition Compositions for Interpreting Ground-Water Chemistry (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 23 (1985), S. 0 
    Details
    ISSN: 1745-6584
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik , Geologie und Paläontologie
    Notizen: Waters from 91 springs in a 130 X 140 km area of west-central Arkansas were analyzed for all the major ions. The yearly flux of these ions in the rain and pure-water extract of the dry deposition 180 km north of this area was measured and assumed to represent the composition of the recharge to the ground water feeding the springs. Cation/Cl-flux ratios were used as a norm for the concentration of ions in the spring waters by evapotranspiration. Ratios above the norm were interpreted as ion exchange or rock dissolution into the ground waters. Ratios below the norm were interpreted as ion adsorption or, for Ca2+, CaCO3 precipitation processes. Na+ and Mg2+ are invariably above the norm. K+, NH+4 and H+ are invariably below the norm; whereas Ca2+ values are about equally divided between above and below the norm. Equivalents of cations above the norm and below the norm were compared for a number of springs to determine the main ground-water processes for each spring. The Na+/Cl- and K+/Cl- norms for the rain water form near-perfect minimum and maximum envelopes, respectively, of the Na+ vs Cl- plots of the spring-water compositions. This is due to the adsorption affinities of the soil for Na+ being low, and for K+ being high.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1745-6584.1985.tb01509.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Ground-Water Model of Two-Phase Immiscible Flow in Coarse Material (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 23 (1985), S. 0 
    Details
    ISSN: 1745-6584
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik , Geologie und Paläontologie
    Notizen: A numerical model was developed to simulate the behavior of two-phase immiscible fluids in ground-water systems for specific application to hydrocarbon spills and leaks. The model is a two-dimensional areal flow model using the finite-element method. A verification of the numerical model was performed using both an approximate analytical solution and a laboratory investigation. The verification results show that the numerical model adequately describes the behavior of immiscible two-phase flow within a coarse porous material.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1745-6584.1985.tb01510.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Analysis of Flow to a Large-Diameter Well During the Recovery Period (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 23 (1985), S. 0 
    Details
    ISSN: 1745-6584
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik , Geologie und Paläontologie
    Notizen: Unsteady flow to a large-diameter well in a confined aquifer during recovery has been analyzed by discrete kernel approach. A family of type curves has been presented for different durations of pumping. These type curves provide a fairly accurate means of determining aquifer parameters from data of pump tests conducted in a large-diameter well. The replenishment of well storage at various times has been estimated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1745-6584.1985.tb01513.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    The Use of Hydrogeochemical Patterns in Carbonate Sand and Sandstone Aquifers to Identify Intrusion and Flushing of Saline Water (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 23 (1985), S. 0 
    Details
    ISSN: 1745-6584
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik , Geologie und Paläontologie
    Notizen: Chemical analyses of wells penetrating the coastal aquifer of Israel indicate that the relative concentrations of sodium, calcium, magnesium, bicarbonate, and hydrogen species deviate considerably from the ideal mixing line between fresh water and sea water, as represented by the concentration of chlorides. Furthermore, deviation patterns were found to be distinctly different for areas of present sea-water intrusion, and areas from which ancient brines are still flushed. These differences, explainable in major part as the combined effects of cation exchange and carbonate equilibria, can in turn be utilized to distinguish between invading and retreating saline-water bodies, and identify their existence at the very beginning of the salinization process. Observed patterns are verified here in major part, with the aid of a single-cell simulation model.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1745-6584.1985.tb01512.x
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