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Wide-gap welds offer railroads potential savings.
Railway Track and Structures
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August 1, 1999|
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COPYRIGHT 1999 Simmons-Boardman Publishing Corporation. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group.
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Replacing defective rail now requires two welds, but the process could be done with only one wide-gap weld, which would save both time and money
Wide-gap welds potentially have two primary benefits: they can improve track integrity by reducing the total number of welds in track and they can save money.
Two standard welds are needed to repair most defective rails, whereas, in many cases, a single wide-gap weld can do the job. Wide-gap welds can save up to nearly $900 per defective rail, given the right use, according to a 1997 cost analysis by ...
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Neanderthals behaving.(When Neanderthals and Modern Humans Met)(The Palaeolithic Occupation of Vogelherd Cave: Implications for the Subsistence Behavior of Late Neanderthals and Early Modern Humans)(Book review)
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Neanderthals get an evolutionary face-lift.
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Neanderthal genome reconstructed, scientists say
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Neanderthals' story may be told in DNA Scientists hope genetic map will explain human evolution, too
Newspaper article from: International Herald Tribune
; ...the bones of the Neanderthals have begun to...million units of Neanderthal DNA have already...University. The full Neanderthal genome will resolve...longstanding issues about Neanderthals and their relationship...complete and the Neanderthals had disappeared...his quest for ...
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NEANDERTHALS -- THE NOT-SO-GRISLY FOLK
Newspaper article from: The Boston Globe
; ...racial remembrance of the Neanderthals may survive in our folklore...not interbreed with Neanderthals, and attributed this separateness to the Neanderthal's "extreme hairiness...Wells referred to Neanderthals as "the grisly folk...
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Neanderthals and Modern Humans: An Ecological and Evolutionary Perspective
Magazine article from: Human Biology
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Neanderthals Around Longer, Study Says
News Wire article from: AP Online
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 "The Sunday Independent (South Africa)")
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Newspaper article from: The Sunday Independent (South Africa)
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