منابع مشابه
Innovative Developments in Sand Reclamation Technologies
Reclamation of used moulding and core sands is defined as a treatment of waste refractory materials allowing to recover at least one component of properties similar to the properties of the new component and to reuse it for casting moulds and core production. In traditional technologies of casting moulds and core production on the basis of high-silica sands with binding agent addition, the recl...
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In view of the global burden of subfertility, efforts are required to make assisted reproduction more effective, less burdensome and more equally accessible. New reproductive technologies are frequently introduced in clinical practice without a sound evaluation of their efficacy, effectiveness and/or safety. Safety issues in this context refer both to patients (mostly women) undergoing the rele...
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Thick smoke routinely cloaks Southern California hills, highways, and neighborhoods during this region’s autumn wildfire season, with drought contributing to worse fires than usual in the past two years. Wildfire emissions generate larger aerosols than those produced by vehicles—up to 0.4 micrometers (μm) in diameter compared with less than 0.15 μm—according to a new study led by Constantinos S...
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Characterizing and monitoring terrestrial, or land, surface features, such as forests, deserts, and cities, are fundamental and continuing goals of Earth Observation (EO). EO imagery and related technologies are essential for increasing our scientific understanding of environmental processes, such as carbon capture and albedo change, and to manage and safeguard environmental resources, such as ...
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ژورنال
عنوان ژورنال: Nature Biotechnology
سال: 1993
ISSN: 1087-0156,1546-1696
DOI: 10.1038/nbt0793-765b