نتایج جستجو برای: morphology evolution

تعداد نتایج: 479306  

Journal: :Journal of Sedimentary Research 2021

ABSTRACT Phanerozoic limestones are composed of low-Mg calcite microcrystals (i.e., micrite) that typically measure between 1 and 9 μm in diameter. These microcrystals, which host most the microporosity subsurface reservoirs, characterized by a variety microtextures. Despite overwhelming consensus diagenetic, origin various textures is widely debated. The commonly reported texture polyhedral ro...

2018
Friðgeir Grímsson Guido W Grimm Reinhard Zetter

Earlier studies indicate a strong correlation of pollen morphology and ultrastructure with taxonomy in Loranthaceae. Using high-resolution light microscopy and scanning electron microscopy imaging of the same pollen grains, we document pollen types of 35 genera including 15 studied for the first time. Using a molecular phylogenetic framework based on currently available sequence data with good ...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2013
P Manz N Fedorczak T Dittmar T Baloniak A von Keudell

Fluorocarbon thin-film deposition is studied, which shows an anomalous high dynamic growth exponent and therefore does not fit in any universal class of fractal surface growth models. A detailed analysis of the nonlinear behavior of the surface morphology evolution is carried out, quantifying several features of the shadowing instability. A synergy effect with the Kardar-Parisi-Zhang nonlineari...

Abstract Image analysis is used to study the effect of sintering atmosphere and sintering times on the pores morphology of Astaloy CrM. The pores morphology was described by means of some parameters, Circular Diameter (DC)- which shows the diameter of equivalent circle for comparing the pore size, FElongation and FShape- which have different geometrical meanings. The results have been interpret...

Journal: :PLoS ONE 2009
Zheng Wang Peter R. Johnston Zhu L. Yang Jeffrey P. Townsend

The endophytic lifestyle has played an important role in the evolution of the morphology of reproductive structures (body) in one of the most problematic groups in fungal classification, the Leotiomycetes (Ascomycota). Mapping fungal morphologies to two groups in the Leiotiomycetes, the Rhytismatales and Hemiphacidiaceae reveals significant divergence in body size, shape and complexity. Mapping...

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