Armored Burrowers
نویسندگان
چکیده
منابع مشابه
Armored Geomembrane Cover Engineering
Geomembranes are an important component of modern engineered barriers to prevent the infiltration of stormwater and runoff into contaminated soil and rock as well as waste containment facilities--a function generally described as a geomembrane cover. This paper presents a case history involving a novel implementation of a geomembrane cover system. Due to this novelty, the design engineers neede...
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Bivalves and gastropods are the two largest classes of extant molluscs. Despite sharing a huge number of features, they do not share a key ecological one: gastropods are essentially epibenthic, while most bivalves are infaunal. However, this is not the ancestral bivalve condition; Cambrian forms were surface crawlers and only during the Ordovician a fundamental infaunalization process took plac...
متن کاملModeling sediment pulses on an armored channel
Dams trap sediments in the upstream reservoir, thus the continuity in sediment transport along the river is interrupted. Several negative aspects related to the lack of sediment supply were observed downstream many dams and the artificial replenishment of sediment was applied as a method to restore natural morphological conditions. The replenishment technique may be seen as a pulse of sediments...
متن کاملOssified chronic subdural hematoma with armored brain.
Ossified chronic subdural hematoma is a very rarely seen entity. We present here a 22-year-old male who had presented with severe headache consequent to brain compression caused by bifronto-parieto-temporal ossified subdural hematoma. We evaluated our method and surgical intervention in the light of the literature. The question whether the ossified membrane should be excised or not excised in t...
متن کاملThe armored carapace of the boxfish.
The boxfish (Lactoria cornuta) has a carapace consisting of dermal scutes with a highly mineralized surface plate and a compliant collagen base. This carapace must provide effective protection against predators as it comes at the high cost of reduced mobility and speed. The mineralized hydroxyapatite plates, predominantly hexagonal in shape, are reinforced with raised struts that extend from th...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1900
ISSN: 0036-8733
DOI: 10.1038/scientificamerican12221900-394