Results 21 to 30 of about 5,425,138 (280)

The Large Dendritic Morphologies in the Antoniadi Crater (Mars) and Their Potential Astrobiological Significance

open access: yesGeosciences, 2022
Mars has held large amounts of running and standing water throughout its history, as evidenced by numerous morphologies attributed to rivers, outflow channels, lakes, and possibly an ocean.
Fabio Vittorio De Blasio
doaj   +1 more source

Double dendrite growth in solidification [PDF]

open access: yesPhysical Review E, 2005
We present experiments on the doublon growth morphology in directional solidification. Samples used are succinonitrile with small amounts of poly(ethylene oxide), acetone, or camphor as the solute. Doublons, or symmetry-broken dendrites, are generic diffusion-limited growth structures expected at large undercooling and low anisotropy.
Utter, Brian, Bodenschatz, E.
openaire   +4 more sources

Dendritic Growth in Si1−xGex Melts

open access: yesCrystals, 2021
We investigated the types of dendrites grown in Si1−xGex (0 < x < 1) melts, and also investigated the initiation of dendrite growth during unidirectional growth of Si1-xGex alloys.
Genki Takakura   +6 more
doaj   +1 more source

A Stable Mode of Dendritic Growth in Cases of Conductive and Convective Heat and Mass Transfer

open access: yesCrystals, 2022
In this paper, we develop a theory of stable dendritic growth in undercooled melts in the presence of conductive and convective heat and mass transfer boundary conditions at the solid/liquid interface of a dendrite.
Liubov V. Toropova   +2 more
doaj   +1 more source

Phase Field Modeling of Dendritic Growth on Spherical Surfaces

open access: yesFrontiers in Materials, 2020
The spontaneous formation of a crystal phase is one of the most common and beautiful pattern formation mechanisms in nature. Different instabilities in the crystal interface may lead to the growth of ramified structures, known as dendritic crystal growth.
Laureano Ortellado, Leopoldo R. Gómez
doaj   +1 more source

Three-Dimensional Lattice Boltzmann Modeling of Dendritic Solidification under Forced and Natural Convection

open access: yesMetals, 2017
A three-dimensional (3D) lattice Boltzmann (LB) model is developed to simulate the dendritic growth during solidification of Al-Cu alloys under forced and natural convection. The LB method is used to solve for solute diffusion and fluid flow.
Mohsen Eshraghi   +3 more
doaj   +1 more source

Capicua Regulates Dendritic Morphogenesis Through Ets in Hippocampal Neurons in vitro

open access: yesFrontiers in Neuroanatomy, 2021
Capicua (Cic), a transcriptional repressor frequently mutated in brain cancer oligodendroglioma, is highly expressed in adult neurons. However, its function in the dendritic growth of neurons in the hippocampus remains poorly understood.
Keqin Li   +18 more
doaj   +1 more source

Mechanisms and consequences of reduced dendritic growth of cerebellar Purkinje cells [PDF]

open access: yes, 2012
The cerebellum is a brain region crucial for coordination and motor learning. Being the principal output cell of the cerebellar cortex, Purkinje cell loss and degeneration play an important role in many cerebellar diseases.
Gugger, Olivia S.
core   +1 more source

Postnatal development of dendritic calcium signaling in rat hippocampal pyramidal cells [PDF]

open access: yes, 2013
In CA1 pyramidal neurons, dendritic calcium transients in stratum radiatum were evoked in acute slices via backpropagating action potentials using patch clamp recordings.
Pohle, Jörg
core   +1 more source

Phase-Field Simulation for Non-isothermal Solidification of Al-Cu Binary Alloy [PDF]

open access: yesMaterials Research, 2019
Based on the principle of dilute solution approximation, a phase field model for dendritic growth during the non-isothermal solidification process was proposed by coupling the phase field, concentration field and temperature field, and was adopted to ...
Liu Guangguang   +5 more
doaj   +1 more source

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