Results 201 to 210 of about 6,799 (256)

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga   +4 more
wiley   +1 more source

Astronomical calibration of the middle Cambrian in Baltica: global carbon cycle synchronization and climate dynamics. [PDF]

open access: yesNat Commun
Jamart V   +9 more
europepmc   +1 more source
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Suppression effect of inert gases on aluminum dust explosion

Powder Technology, 2021
Abstract The suppression mechanism of inert gases for 5 μm aluminum dust explosion was investigated in a confined cuboid chamber. The characteristic parameters of flame propagation and explosion severity parameters that were affected by the inert gases were systematically studied.
Haipeng Jiang, Mingshu Bi
exaly   +2 more sources

Effectiveness of various rock dusts as agents of coal dust inerting.

Journal of Loss Prevention in the Process Industries, 1992
Abstract An experimental investigation of requirements for coal dust inerting was conducted in a 26 l, spherical chamber. A mine-face sample of coal from the Prince mine of the Cape Breton Development Corporation was tested; rock dusts used were limestone, dolomite (two particle sizes) and magnesite.
Paul R. Amyotte   +2 more
openaire   +2 more sources

Explosion energy of methane/deposited coal dust and inert effects of rock dust

Fuel, 2018
Abstract In order to study the processes of lifting, dispersing and igniting of a dust layer behind the local gas explosion as well as their suppression, premixed methane local explosion igniting deposited coal/inert rock dust at the bottom of a tube are simulated. The two-phase combustion mechanism is obtained that the deposited dust is kicked up by

exaly   +2 more sources

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