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  • Articles  (168)
  • Springer  (168)
  • 2010-2014  (43)
  • 1990-1994  (56)
  • 1980-1984  (52)
  • 1920-1924  (1)
  • 1905-1909  (16)
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  • Articles  (168)
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  • 1
    Electronic Resource
    Electronic Resource
    Second generation U.S. rail transit systems: Prospects and perils (1980)
    Springer
    Transportation 9 (1980), S. 17-32 
    Details
    ISSN: 1572-9435
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Abstract So far in the decade of the 1970's, commitments have been made to construct a “second generation” of new rail systems in four urban areas — Atlanta, Baltimore, Miami and Buffalo. In this paper the authors speculate on the prospects and perils that lie ahead for these systems in the context of national and local expectations for rail transit and the experience of the first generation rail transit systems of San Francisco (BART) and Washington.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00147815
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  • 2
    Electronic Resource
    Electronic Resource
    The effect of additives on the morphology of zinc electrodeposited from a zinc chloride electrolyte at high current densities (1981)
    Springer
    Journal of applied electrochemistry 11 (1981), S. 677-683 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract There are advantages if zinc can be deposited electrochemically at high current densities. In order to improve the deposit at current densities exceeding 2000 Am−2, various additions were made to the electrolyte. It was found that proteinous additives produced planar deposits with a (10.2) (10.3) orientation and a current efficiency of around 85% in a small laboratory cell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00615170
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  • 3
    Electronic Resource
    Electronic Resource
    The strategic transportation research study — Its origins and purposes (1984)
    Springer
    Transportation 12 (1984), S. 195-209 
    Details
    ISSN: 1572-9435
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Abstract The highway industry in the United States spends about $35 to $40 billion annually. Management of the industry is almost wholly decentralized. This decentralization plus diminishing fuel tax revenues used to finance road improvements have caused road research efforts to decline to a very low level. Comparisons between funds for highway research and those spent by private firms in similar industries show that private firms spend from 5 to 12 times the rate of highway agencies. The problem of how much to spend on research is difficult both for private-sector and for public-sector enterprises. The level of research spending is shown to correlate well with both profitability and growth in U.S. firms. Four methods used for making research decisions in the private sector are discussed. The goals of the Strategic Transportation Research Study (STRS), which is being conducted by the Transportation Research Board to examine highway and transportation needs, are described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00146941
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  • 4
    Electronic Resource
    Electronic Resource
    Crystal and molecular structure of (η5)-C5H5)Co(HNC6H4NH), a cobalto-quinonediimine complex (1983)
    Springer
    Journal of chemical crystallography 13 (1983), S. 317-323 
    Details
    ISSN: 1572-8854
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The X-ray structure determination of (η 5-C5H5)Co(HNC6H4NH) (Ib) reveals that the compound crystallizes in the monoclinic space groupP21/n witha=12.479(3),b=8.865(2),c=17.817(5) Å, {iβ}=94.70(2)°,V=1964.4(6) Å3,Z=8 (two independent molecules form the asymmetric unit). Least-squares refinement based on 1894 independent observed reflections,I≥2.5σ(I), resulted in a finalR value of 0.054. A pattern of somewhat shortened Co-N bonds (〈av〉 1.83 Å), short C-N bonds (〈av〉 1.34 Å), Co-N-C bond angles consistent with trigonally hybridized N, and a nearly planar metallocyclic ring suggest that some electron delocalization may exist in the ring. This pattern, however, may also be explicable in terms of factors other than delocalization; alternatives are discussed. The structure may best be regarded as a CoI complex containing ano-quinonediimine ligand.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01161295
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  • 5
    Electronic Resource
    Electronic Resource
    The conductivity of aqueous zinc chloride solutions (1982)
    Springer
    Journal of applied electrochemistry 12 (1982), S. 1-5 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The conductivity of aqueous zinc chloride reaches a maximum of 10.7 Ω−1 m−1 at 3.7 M ZnCl2. Measurements on chlorinated ZnCl2 showed that at low chlorine concentrations, the conductivity increased linearly with the square root of the chlorine concentration. The increase was due to the three species: dissolved chlorine, Cl 3 − and HClO. Ammonium chloride additions increased the conductivity of aqueous zinc chloride substantially.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01112058
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  • 6
    Electronic Resource
    Electronic Resource
    Colonization and degradation of oxidized bituminous and lignite coals by fungi (1990)
    Springer
    Journal of industrial microbiology and biotechnology 6 (1990), S. 53-59 
    Details
    ISSN: 1476-5535
    Keywords: Bituminous coal ; Biosolubilization ; Penicillium sp. ; Surface colonization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary APenicillium sp. previously shown to grow on lignite coals degraded an air-oxidized bituminous coal (Illinois #6) to a material that was more than 80% soluble in 0.5 N NaOH. Scanning electron microscopy of the oxidized Illinois #6 revealed colonization of the surface by thePenicillium sp., production of conidia, and erosion of the coal surface. The average molecular weight (MW) of Illinois #6 degraded by the fungus and base-solubilized was approximately 1000 Da. The average MW for base-solubilized Illinois #6 that was not exposed to the fungus was 6000 Da, suggesting solubilizing mechanisms other than base catalysis. A spectrophotometric assay to quantify the microbial conversion of biosolubilized coal was developed. Standard curves were constructed based on the absorbance at 450 nm of different quantities of microbe-solubilized coal. An acid precipitation step was necessary to remove medium and/or microbial metabolites from solubilized coal to prevent overestimation of the extent of coal biosolubilization. Furthermore, the absorption spectra for different coal products varied, necessitating construction of standard curves for individual coals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01576177
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of diuron and fluometuron metabolites on the growth and fiber quality of cotton (Gossypium hirsutum) (1990)
    Springer
    Bulletin of environmental contamination and toxicology 44 (1990), S. 260-267 
    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/BF01700145
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  • 8
    Electronic Resource
    Electronic Resource
    Inhibition of corneal epithelial cell migration by cadmium and mercury (1991)
    Springer
    Bulletin of environmental contamination and toxicology 46 (1991), S. 230-236 
    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/BF01691942
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  • 9
    Electronic Resource
    Electronic Resource
    Chronic exposure of goldfish-derived cell cultures to toxaphene alters the replication of Goldfish Virus-2 (1982)
    Springer
    Bulletin of environmental contamination and toxicology 29 (1982), S. 731-733 
    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/BF01606114
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  • 10
    Electronic Resource
    Electronic Resource
    Polychlorinated biphenyls in the fish and sediment of the Lower Fox River, Wisconsin (1983)
    Springer
    Bulletin of environmental contamination and toxicology 30 (1983), S. 58-64 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Conclusions Pollution abatement technologies instituted by recycling paper mills have resulted in a decrease in PCBs in final effluents discharged to the Lower Fox River. Concurrent declines in fish PCB body burdens have also been noted. It is not certain, however, whether the resultant decrease in PCB final effluent concentrations is sufficient to protect aquatic life from bioaccumulation of PCBs above an acceptable level. Furthermore, sediment PCB concentrations remain high in previously impacted areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01610099
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