نتایج جستجو برای: vents
تعداد نتایج: 2313 فیلتر نتایج به سال:
The MESSENGER mission revealed, for the first time, conclusive evidence of explosive volcanism on Mercury. Several previous works have cataloged the appearance and location of explosive volcanism on the planet using a variety of identifying characteristics, including vent presence and deposit color as seen in multispectral image mosaics. We present here a comprehensive catalog of vents of likel...
Hydrothermal vents are deep-sea ecosystems that are almost exclusively known and explored by scientists rather than the general public. Continuing scientific discoveries arising from study of hydrothermal vents are concommitant with the increased number of scientific cruises visiting and sampling vent ecosystems. Through a bibliometric analysis, we assessed the scientific value of hydrothermal ...
designing an efficient skin for the building can minimize winter heat loss and summer heat gain. double skin façade (dsf) is a good device for achieving such a goal; but its summer overheating is a problem for using it, especially in hot-dry climates such as iran plateau. in this study, after reviewing state of the art strategies for cooling façade cavity, the effect of using some of them (such...
Genetically feathered and featherless sibling broilers selected for matched BW were killed, scalded, and defeathered to determine the consequences of feathers and empty feather follicles on the recovery of bacteria from carcass breast skin. In trial 1, the vents of all carcasses were plugged and sutured before scalding to prevent the expulsion of cloacal contents during picking. In trial 2, hal...
BACKGROUND Copepoda is one of the most prominent higher taxa with almost 80 described species at deep-sea hydrothermal vents. The unique copepod family Dirivultidae with currently 50 described species is the most species rich invertebrate family at hydrothermal vents. METHODOLOGY/PRINCIPAL FINDINGS We reviewed the literature of Dirivultidae and provide a complete key to species, and map geogr...
Four hundred eruptions of 3 active vents within the summit crater of the volcano Stromboli were recorded during 43.5 hours. The main vent (1) typically erupts pasty molten bombs in a 2 to 5 second burst with a mean frequency of 10.7 minutes. A second vent (2) normally fires a 1 second cannon-like burst of molten material averaging every 54 minutes. A third vent (3) predominantly erupts hot lumi...
Within the endemic invertebrate faunas of hydrothermal vents, five biogeographic provinces are recognized. Invertebrates at two Indian Ocean vent fields (Kairei and Edmond) belong to a sixth province, despite ecological settings and invertebrate-bacterial symbioses similar to those of both western Pacific and Atlantic vents. Most organisms found at these Indian Ocean vent fields have evolutiona...
The abundance, diversity, activity, and composition of microbial communities in sulfide structures both of active and inactive vents were investigated by culture-independent methods. These sulfide structures were collected at four hydrothermal fields, both on- and off-axis of the back-arc spreading center of the Southern Mariana Trough. The microbial abundance and activity in the samples were d...
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