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  • 2005-2009  (1)
  • 2000-2004  (2)
  • 1
    Electronic Resource
    Electronic Resource
    The Water Crisis in the Gaza Strip: Prospects for Resolution (2005)
    Oxford, UK; Malden, USA : Blackwell Science Inc
    Ground water 43 (2005), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: Israel and the Palestinian Authority share the southern Mediterranean coastal aquifer. Long-term overexploitation in the Gaza Strip has resulted in a decreasing water table, accompanied by the degradation of its water quality. Due to high levels of salinity and nitrate and boron pollution, most of the ground water is inadequate for both domestic and agricultural consumption. The rapid rate of population growth in the Gaza Strip and dependence upon ground water as a single water source present a serious challenge for future political stability and economic development. Here, we integrate the results of geochemical studies and numerical modeling to postulate different management scenarios for joint management between Israel and the Palestinian Authority. The chemical and isotopic data show that most of the salinity phenomena in the Gaza Strip are derived from the natural flow of saline ground water from Israel toward the Gaza Strip. As a result, the southern coastal aquifer does not resemble a classic “upstream-downstream” dispute because Israel's pumping of the saline ground water reduces the salinization rates of ground water in the Gaza Strip. Simulation of different pumping scenarios using a monolayer, hydrodynamic, two-dimensional model (MARTHE) confirms the hypothesis that increasing pumping along the Gaza Strip border combined with a moderate reduction of pumping within the Gaza Strip would improve ground water quality within the Gaza Strip. We find that pumping the saline ground water for a source of reverse-osmosis desalination and then supplying the desalinated water to the Gaza Strip should be an essential component of a future joint management strategy between Israel and the Palestinian Authority.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.2005.00064.x
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  • 2
    Electronic Resource
    Electronic Resource
    Experimental and simulated analysis of Cu nanoparticles produced by cooled sample irradiation (2000)
    Springer
    Applied physics 71 (2000), S. 219-222 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 61.46.+w; 61.80.Jh; 61.82.Rx; 31.15.Qg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. In the present work, the production is reported of Cu nanoparticles, with sizes of 2–5 nm, by proton irradiation with a low controlled temperature for the sample. The process yields aggregates over a crystalline matrix of the same element. The structural evolution of the sample is analyzed from macroscopic to nanoscopic scales, using optical and electron microscopy. The grain size and preferential shape-changes of the polycrystalline sheets were obtained by optical chromatic systems. Scanning electron microscopy analysis was used to study the morphology and composition with an Energy Dispersive Spectroscopy (EDS) system, and with the help of transmission electron microscopy the lattice matrix of crystal was solved and the nanoparticles’ shape and size were determined. Molecular simulation tools were used to support the analysis of high-resolution elecron microscopic images and the nanoparticles’ behavior.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050057
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  • 3
    Electronic Resource
    Electronic Resource
    Using High Pressure Coolant in the Drilling and Turning of Low Machinability Alloys (2000)
    Springer
    The international journal of advanced manufacturing technology 16 (2000), S. 85-91 
    Details
    ISSN: 1433-3015
    Keywords: Key words: Machining; Nickel; Titanium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The paper examines the results of machining tests carried out on two alloys commonly used in the aircraft industry, specifically, alphabeta type titanium alloy Ti6A14V and nickel-based superalloy of type 718. In view of their excellent mechanical properties and their resistance to a wide range of temperatures, these alloys are widely used in the manufacture of turbo-engine parts. They are extremely difficult to machine, however, for various reasons. The present aim is to consider how their drilling, turning, and milling could be made more productive.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001700050012
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    Paper (German National Licenses)
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