نتایج جستجو برای: rock erodibility

تعداد نتایج: 39418  

2011
Philip Adam Nicholas Dickenson Wendy L. Picking Micheal Barta Brian Geisbrecht William D. Picking Juliana Agudelo Angela Porta Kazuma Akehi Blaine Long

Shigella flexneri causes a severe form of bacillary dysentery characterized by cramping, diarrhea, and fever. S. flexneri uses a type three seceretion system (TTSS) to invade the colonic epithelium by injecting effector proteins directly into the host cell cytoplasm. The TTSS consists of a basal body, spanning both the outer and inner membranes, and a surface exposed needle. After the proper en...

Journal: :Estuarine Coastal and Shelf Science 2021

Erosion of tidal flats is to a large degree determined by the erosion threshold their cohesive sediments, i.e., critical bottom shear stress identifying onset erosion. Given that erodibility can vary strongly over both space and time, rapid in situ measuring methods for quantifying are needed. As largest changes flat elevation generally observed during storms when wave dominated, we developed m...

Journal: :Open Journal of Soil Science 2022

The soils of Gadas, object the present study, are identified on macromorphological, physico-chemical level and indices erodibility related to their properties. analyzes were carried out by standard methods. macromorphological analysis a toposequence made it possible identify five types soils: lithosols which occupy high zones landscape, colluvial (arenosols, regosols) located piedmont, alluvial...

2000
Martin Zborovjan Igor Leššo Ľubomír Dorčák

Drilling into a rock massif is energetically extremely consumptive process. Hence the optimization of drilling regime with objective of energy consumption minimization, is very important. Proposed article discusses partial problem of this problem. During the drilling process it is useful to know the drilled rock type, whereas to particular drilled rock needs convenient drilling regime, which is...

Journal: :Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 2014

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