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  • 11
    Electronic Resource
    Electronic Resource
    The thermodynamics of a silver-silver ion electrode in dioxan-water and mannitol-water systems at different temperatures
    Amsterdam : Elsevier
    Thermochimica Acta 235 (1994), S. 117-124 
    Details
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6031(94)80089-8
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    Paper (German National Licenses)
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  • 12
    Electronic Resource
    Electronic Resource
    Distribution of Heavy Metals in Wheat, Mustard, and Weed Grown in Field Irrigated with Industrial Effluents (2000)
    Springer
    Bulletin of environmental contamination and toxicology 64 (2000), S. 489-496 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001280000030
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  • 13
    Electronic Resource
    Electronic Resource
    An Object-Oriented Framework for Multidisciplinary, Multi-Physics, Computational Mechanics (1999)
    Springer
    Engineering with computers 15 (1999), S. 105-125 
    Details
    ISSN: 1435-5663
    Keywords: Key words.Analysis management; Computationalmechanics; Computational mechanics language
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Notes: Abstract. This paper presents the design and development of an object-oriented framework for computational mechanics. The framework has been designed to address some of the major deficiencies in existing computational mechanics software packages. The framework addresses the deficiencies of existing computational mechanics software packages by (a) having a sound design using the state of the art in software engineering, and (b) providing model manipulation features that are common to a large set of computational mechanics problems. The framework provides features that are essential to a large set of computational mechanics problems. The domainspecific features provided by the framework are a geometry sub-system specifically designed for computational mechanics, an interpreted Computational Mechanics Language (CML), a structure for management of analysis projects, a comprehensive data model, model development, model query and analysis management. The domain independent features provided by the framework are a drawing subsystem for data visualization, a database server, a quantity subsystem, a simple GUI and an online help server. It is demonstrated that the framework can be used to develop applications that can: (a) extend or modify important parts of the framework to suit their own needs; (b) use CML for rapid prototyping and extending the functionality of the framework; (c) significantly ease the task of conducting parametric studies; (d) significantly ease the task of modeling evolutionary problems; (e) be easily interfaced with existing analysis programs; and (f) be used to carry out basic computational mechanics research. It is hoped that the framework will substantially ease the task of creating families of software applications that apply existing and upcoming theories of computational mechanics to solve both academic and real world interdisciplinary simulation problems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003660050008
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    Paper (German National Licenses)
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  • 14
    Electronic Resource
    Electronic Resource
    Acoustic emissions from reinforced concrete (1994)
    Springer
    Experimental mechanics 34 (1994), S. 379-388 
    Details
    ISSN: 1741-2765
    Keywords: Acoustic Emission ; Reinforced Concrete ; Fracture ; Source Location ; Nondestructive Evaluation (NDE)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Acoustic emissions from reinforced-concrete beams, reinforcing bars and plain concrete cylinders were monitored. Acoustic-emission events were used in a study of source locations, frequency characteristics, and other analytical methods that have found use in the past for evaluating acoustic-emission data in other fields of engineering. Tests were done on reinforced-concrete beams under flexural loading, individual reinforcing bars under pure tension, concrete cylinders under compression, and reinforcing bars subject to pullout tests. The experimental data were first analyzed with conventional acoustic-emission methodology. A critical look at many acoustic-emission techniques currently used in other materials (metals, composites, etc.) demonstrated some of the difficulties of applying the same techniques to reinforced concrete. More importantly, it illustrated the limitations of signal processing and parameter estimation of acoustic-emission events as viable nondestructive-evaluation (NDE) techniques for reinforced-concrete structures. Subsequently, on the basis of the experimental results, some of the more promising aspects of developing acoustic emission into a structural monitoring tool are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02325153
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  • 15
    Electronic Resource
    Electronic Resource
    Extraction and separation of mercury using 3,4,4a,5-tetrahydro-3, 3,4a-trimethyl-7-(substituted)-pyrimido [1,6-a] benzimidazole-1-thiol (PBT) and its application to industrial effluents (1995)
    Springer
    Journal of radioanalytical and nuclear chemistry 200 (1995), S. 509-520 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A selective method for the extraction of mercury(II) from hydrochloric acid solution with 3,4,4a,5-tetrahydro-3,3,4a-trimethyl-7-(substituted)-pyrimido [1,6-a]-benzimidazole-1-thiol, (PBT) is proposed. The extraction ability of the system was studied both in strongly acidic (6 mol dm−3 HCl) and alkaline (pH 12) media. The optimum extraction conditions were evaluated from a critical study of the effect of pH, PBT concentration and metal ion concentration. The probable composition of the species has been deduced from lg-lg plots and an extraction mechanism is suggested. A separation scheme is proposed. The method has been applied for the determination of Hg (II) in industrial waste water.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02162500
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  • 16
    Electronic Resource
    Electronic Resource
    Studies in nickel(IV) chemistry. Electron transfer kinetics of the reaction between tris(dimethylglyoximato)nickelate(IV) and hexacyanoferrate(II) in aqueous medium (1983)
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 15 (1983), S. 823-833 
    Details
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The kinetics of electron transfer from hexacyanoferrate(II) to tris(dimethylglyoximato)-nickelate(IV), Ni(dmg)32-, to produce Fe(CN)63- and Ni(dmgH)2, follows a pseudo-first-order disappearance in the Ni(IV). The pseudo-first-order rate constants kobs are linearly dependent on [Fe(CN)64-]0 in a fiftyfold range of 2 × 10-4-1 × 10-2M, and the average values of kobs/[Fe(CN)64-]0 range from 194M-1·s-1 at pH = 5.20 to 0.2M-1·s-1 at pH = 9.07 in aqueous medium at 35°C and μ = 0.57M. Results are interpreted in terms of a probable mechanism involving rate-determining outer sphere one-electron transfer steps from the reductant and one-protonated reductant species to the unprotonated and one-protonated Ni(IV) species present in solution. The more electrophilic one-protonated reductant species apparently reacts several orders of magnitude faster than the unprotonated one.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/kin.550150811
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