ORGANIZATION OF COAL MINE INDUSTRY
نویسندگان
چکیده
منابع مشابه
High-tech coal mine canary.
High-tech coal mine canary One of coal mining's earliest systems for warning of the presence of methane gas, the canary in the coal mine, though low-tech, was extremely effective and rather easy to read: if the bird died, miners had to get out of the shaft. Today, the search for means to monitor for signs of danger continues. At an annual checkup, one could be given a whole battery of tests, ea...
متن کاملCanaries in the coal mine.
Up until 30 years ago, coalminers relied on canaries as warning systems against harmful gases and pollutants underground. The miners listened for birdsong and if the birds fell silent, then they knew there was danger to their health and to take action. Today we have much more sophisticated information and reporting on the quality of air. We know precisely the levels and composition of pollutant...
متن کاملLast Words: Amazon Mechanical Turk: Gold Mine or Coal Mine?
Recently heard at a tutorial in our field: “It cost me less than one hundred bucks to annotate this using Amazon Mechanical Turk!” Assertions like this are increasingly common, but we believe they should not be stated so proudly; they ignore the ethical consequences of using MTurk (Amazon Mechanical Turk) as a source of labor. Manually annotating corpora or manually developing any other linguis...
متن کاملAmazon Mechanical Turk: Gold Mine or Coal Mine?
Recently heard at a tutorial in our field: “It cost me less than one hundred bucks to annotate this using Amazon Mechanical Turk!” Assertions like this are increasingly common, but we believe they should not be stated so proudly; they ignore the ethical consequences of using MTurk (Amazon Mechanical Turk) as a source of labor. Manually annotating corpora or manually developing any other linguis...
متن کاملEngineering Aspects of Coal Mine Ventilation Systems
The s ingle most c r i t i c a l f a c t o r a f f e c t i n g t h e h e a l t h and s a f e t y o f workers engaged i n t h e coa l -winning p r o c e s s i s the mine envi ronment ; which i s b r o a d l y d e f i n e d as t h e space i n which man works when underground and i n c l u d e s t h e p h y s i c a l and c h e m i c a l c o n d i t i o n s of t h e s u r r o u n d i n g e n c l o ...
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ژورنال
عنوان ژورنال: Geographical Review of Japan
سال: 1952
ISSN: 2185-1719,0016-7444
DOI: 10.4157/grj.25.439