Results 81 to 90 of about 38,586 (263)

Crystallisation in basaltic magmas revealed via in situ 4D synchrotron X-ray microtomography

Scientific Reports, 2018
Magma crystallisation is a fundamental process driving eruptions and controlling the style of volcanic activity. Crystal nucleation delay, heterogeneous and homogeneous nucleation and crystal growth are all time-dependent processes, however, there is a ...
M. Polacci, F. Arzilli, G. La Spina, N. Le Gall, B. Cai, M. Hartley, D. Di Genova, Nghia T. Vo, S. Nonni, R. Atwood, E. Llewellin, P. Lee, M. Burton   +12 more
semanticscholar   +1 more source

Early evolutionary history of the seed

Biological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman, Alan R. T. Spencer, Jason Hilton   +2 more
wiley   +1 more source

Morphological and elemental mapping of gallstones using synchrotron microtomography and synchrotron X‐ray fluorescence spectroscopy

JGH Open, 2019
Background and Aim Regional differences in gallstone (GS) composition are well documented in the Indian subcontinent. The reasons for the same are unknown. Etiopathogenesis of GS remains elusive despite advances in instrumentation.
Mohana Bakthavatchalam, Jayanthi Venkataraman, Ramya J Ramana, Mayank Jain, Balwant Singh, Arul K Thanigai, Vaithiswaran Velyoudam, Saravanan Manickam Neethirajan, Manoj K Tiwari, Ashish K Agarwal, Narayana S Kalkura   +10 more
doaj   +1 more source

ALIGNING MICROTOMOGRAPHY ANALYSIS WITH TRADITIONAL ANATOMY FOR A 3D UNDERSTANDING OF THE HOST-PARASITE INTERFACE – PHORADENDRON SPP. CASE STUDY

Frontiers in Plant Science, 2016
The complex endophytic structure formed by parasitic plant species often represents a challenge in the study of the host-parasite interface. Even with the large amounts of anatomical slides, a three-dimensional comprehension of the structure may still be
Luiza Teixeira-Costa, Gregório Cardoso Tápias Ceccantini   +1 more
doaj   +1 more source

Imaging spontaneous imbibition in full Darcy‐scale samples at pore‐scale resolution by fast X‐ray tomography [PDF]

, 2019
Spontaneous imbibition is a process occurring in a porous medium which describes wetting phase replacing nonwetting phase spontaneously due to capillary forces.
Bartels, W. B., Berg, S., Boone, M., Bultreys, T., Cnudde, V., Environmental hydrogeology, Hassanizadeh, S. M., Hydrogeology, Mahani, H., Rücker, M.   +9 more
core   +2 more sources

Dry‐Processed Graphite Electrodes Enabling Ultra‐High Areal Capacity and Stable Fast‐Charging Performance

Carbon Energy, EarlyView.
A robust fibrillated network formed by high‐molecular‐weight PTFE enables uniform Li+ flux and plating‐free behavior in dry‐processed graphite anodes, achieving ultra‐thick electrodes (10 mAh cm−2 as representative, extended to 30 mAh cm−2) with high volumetric energy density and stable full‐cell performance.
Yewon Kwon, Jin Kyo Koo, Chaeyeon Ha, Jun Myoung Sheem, Yuri Suh, Young‐Jun Kim   +5 more
wiley   +1 more source

X-ray computed microtomography of Megachirella wachtleri [PDF]

Scientific Data, 2018
AbstractUnderstanding the origin and early evolution of squamates has been a considerable challenge given the extremely scarce fossil record of early squamates and their poor degree of preservation. In order to overcome those limitations, we conducted high-resolution X-ray computed tomography (CT) studies on the fossil reptile Megachirella wachtleri ...
Simões, Tiago R., Caldwell, Michael W., Tałanda, Mateusz, Bernardi, Massimo, Palci, Alessandro, Vernygora, Oksana, Bernardini, Federico, Mancini, Lucia, Nydam, Randall L.   +8 more
openaire   +2 more sources

Quantifying Transport, Geometrical, and Morphological Parameters in Li-Ion Cathode Phases Using X-ray Microtomography.

ACS Applied Materials and Interfaces, 2019
The charge/discharge capabilities of Li-ion cathodes are influenced by the meso-scale geometry, transport properties, and morphological parameters of the constituent phases in the cathode: active material, binder, conductive additive, and pore. Electrode
T. Rajendra, A. Mistry, Prehit Patel, Logan J. Ausderau, Xianghui Xiao, P. Mukherjee, G. Nelson   +6 more
semanticscholar   +1 more source

Resonance‐induced restoration of rock permeability degraded by heavy components of crude oil

Deep Underground Science and Engineering, EarlyView.
Resonance‐induced changes occur in filtration properties of sedimentary rocks in crude paraffin oil flow under acoustic vibrations. Experimental data on (a) pressure drop; (b) permeability; (c) pressure at the rock inlet; and (d) pressure at the rock outlet are presented.
Evgenii Riabokon, Qian Yin, Mikhail Guzev, Mikhail Turbakov, Evgenii Kozhevnikov, Nadezhda Riabokon, Ivan Panteleev   +6 more
wiley   +1 more source

Multi-scale characterisation of the 3D microstructure of a thermally-shocked bulk metallic glass matrix composite [PDF]

, 2016
Bulk metallic glass matrix composites (BMGMCs) are a new class of metal alloys which have significantly increased ductility and impact toughness, resulting from the ductile crystalline phases distributed uniformly within the amorphous matrix.
Bodey, Andrew J., Kockelmann, Winfried, Korsunsky, Alexander M., Mi, Jiawei, Rau, Christoph, Sui, Tan, Zhang, Wei   +6 more
core   +1 more source