Results 151 to 160 of about 792 (176)
The Journal of Physical Chemistry C, 2015 Dense 3D graphene macroforms with nanotuned pore sizes have been synthesized using graphene oxide as the precursor and aqueous H2SO4 as the mediator by coupling the hydrothermal method with an evaporation drying process. Depending on the contents of concentrated H2SO4 trapped in the resultant carbons, the pore size of graphene macroforms in the range ...
Jiangying Qu +5 more
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Graphene-based macroform: Preparation, properties and applications
Carbon, 2013 The graphene-based macroform (GM) is a new category of macroscopic carbon materials assembled from graphene nanosheets. It possesses superior physical and chemical properties inherited from individual graphene nanosheets, and moreover, has a tunable micro-texture and controlled macro-morphology, which is useful in various areas.
Li-fang Zhang +5 more
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Facies and architectural analysis of channel sandy macroforms in the upper Parana river
Quaternary International, 2000 Abstract The upper Parana River in the area under analysis has a multichanneled pattern with many islands and channel bars. Channel bars are sandy macroforms classified as central and lateral bars. This paper presents a sedimentological analysis of these bars according to their textures, facies and facies architecture.
M.L Santos, J.C Stevaux
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Journal of Power Sources, 2015 Abstract A Li-ion capacitor (LIC) is constructed with Li4Ti5O12/C hybrid as the negative electrode and 3D porous graphene macroform (PGM) as the positive electrode. After optimizing the mass ratio (m+/m−) of the electrode materials with the value of 2, the as-fabricated LIC delivers a maximum energy density of 72 Wh kg−1 with the power density of 650
Ling Ye +8 more
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SEPM Journal of Sedimentary Research, 1994 ABSTRACT The Castlegate Sandstone is part of the Upper Cretaceous (Campanian-Maastrichtian) Mesaverde Group, a clastic wedge that prograded eastward from the Sevier Orogen of central Utah across the Western Interior Basin. The unit comprises the lowstand part of a regional fourth-order stratigraphic sequence.
Andrew D. Miall
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Geological Society of America BulletinMost extant facies models depict the internal architecture of fluvial point bars as large-scale, inclined beds formed by the lateral migration of channel bends. However, recent studies have revealed that discharge variability can significantly influence these architectures, highlighting that the genetic processes governing their formation remain poorly
Riccardo Maitan +6 more
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Geological Society of America Bulletin, 1983 Large-scale, current bed forms, defined here as bed configurations having dimensions commensurate with the size of the turbulent boundary layer, are considered by many workers to be hydrodynamically equivalent to the regime bed forms. These bed forms were investigated at formative flows (bankfull flows) on the South Platte and Platte Rivers in Colorado
Kevin D. Crowley
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Sedimentary Geology, 1994 Abstract Eskers of south-central Ontario were deposited in closed, subglacial conduits which were continuous (main conduits). This interpretation is supported by: the intimate association of eskers with an anastomosing network of tunnel channels; relatively continuous esker ridges; minimal post-formational disturbance of esker sediments ...
Tracy A. Brennand
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Sedimentology, 2020 AbstractAn outcrop dataset from the early Eocene Sunnyside Delta Interval of the Green River Formation in the Uinta Basin, Utah, USA, documents alluvial channel lithosomes. The abundance of Froude supercritical‐flow sedimentary structures, together with an abundance of high‐deposition‐rate sedimentary structures, in‐channel bioturbation and pedogenic ...
Jianqiao Wang, Piret Plink‐Björklund
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Journal of Quaternary ScienceABSTRACTIn the mid‐western Polish Lowlands, 14 sites of Pleistocene sediments were examined within the region of maximal extent of the Weichselian Glaciation with regard to the occurrence of different forms of carbonate cementation. Out of these sites, five were examined in detail using grain size, petrographic, calcium carbonate content, and thin ...
Bogusz Kulus +2 more
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