Results 41 to 50 of about 227,062 (309)

Tephra deposit inversion by coupling Tephra2 with the Metropolis-Hastings algorithm: algorithm introduction and demonstration with synthetic datasets

Journal of Applied Volcanology, 2021
In this work we couple the Metropolis-Hastings algorithm with the volcanic ash transport model Tephra2, and present the coupled algorithm as a new method to estimate the Eruption Source Parameters of volcanic eruptions based on mass per unit area or ...
Qingyuan Yang, E. Bruce Pitman, Marcus Bursik, Susanna F. Jenkins   +3 more
doaj   +1 more source

Sedimentation and mobility of PDCs: a reappraisal of ignimbrites’ aspect ratio

Scientific Reports, 2017
The aspect ratio of ignimbrites is a commonly used parameter that has been related to the energy of the parent pyroclastic density currents (PDCs). However this parameter, calculated as the ratio between the average thickness and the average lateral ...
Guido Giordano, Domenico M. Doronzo
doaj   +1 more source

Simulation of electron transport in electron beam induced deposition of nanostructures

, 2013
We present a numerical investigation of energy and charge distributions during electron-beam-induced growth of W nanostructures on SiO2 substrates using Monte Carlo simulation of electron transport.
Jeschke, Harald O., Salvat-Pujol, Francesc, Valenti, Roser   +2 more
core   +2 more sources

Metal Preservation and Mobilization in Sediments at the TAG Hydrothermal Field, Mid‐Atlantic Ridge

Geochemistry, Geophysics, Geosystems, 2023
At the Trans‐Atlantic Geotraverse hydrothermal field, metalliferous sediments cover extinct hydrothermal mounds and the surrounding seafloor. Here, we report the morphological, mineralogical and geochemical processes that deposit these sediments ...
Adeline Marie Dutrieux, Anna Lichtschlag, Fernando J. A. S. Barriga, Sofia Martins, Jelena Milinovic, Bramley J. Murton   +5 more
doaj   +1 more source

Regularities of hydromechanical amber extraction from sandy deposits [PDF]

, 2019
Purpose is to analyze the efficiency of hydromechanical amber extraction from sandy deposits relying upon the determined regularities concerning the effect of parameters while carrying out a series of laboratory tests and full-scale experiments. Methods.
Khrystyuk, A, Korniienko, V, Malanchuk, Ye, Malanchuk, Z, Moshynskyi, V, Soroka, V   +5 more
core   +1 more source

Incorporation of substrate blocks into mass transport deposits: Insights from subsurface and outcrop studies

The Depositional Record
Mass movements are common on the continental slope, affecting not only the subsequent sea floor morphology but often substantially modifying the underlying deposits.
Victoria Valdez Buso, Ben Kneller, Vanessa daSilva Reis Assis, Fernando Farias Vesely, Juan Pablo Milana   +4 more
doaj   +1 more source

Recent Developments on Colloidal Deposits Obtained by Evaporation of Sessile Droplets on a Solid Surface

, 2019
Understanding flow patterns and coupled transport phenomena during evaporation of droplets loaded with colloidal particles is central to design technical applications such as organizing proteins/DNA on a solid surface.
Bhardwaj, Rajneesh, Patil, Nagesh D.
core   +1 more source

Stratosphere-troposphere transport in a numerical simulation of midlatitude convection [PDF]

, 2007
The transport of stratospheric air deep into the troposphere via convection is investigated numerically using the UK Met Office Unified Model. A convective system that formed on 27 June 2004 near southeast England, in the vicinity an upper level ...
Bryan, Davies, Edwards, Gray, Gray, Gregory, Griffiths, Holton, Jeffrey M. Chagnon, Koch, Lamarque, Lane, Lane, Lock, Maddox, Moustaoui, Mullendore, Randriambelo, Reid, Roberts, Sprenger, Stohl, Stohl, Suzanne L. Gray, Wirth   +24 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Modeling of Sand and Crude Oil Flow in Horizontal Pipes during Crude Oil Transportation

Journal of Engineering, 2015
Some oil and gas reservoirs are often weakly consolidated making them liable to sand intrusion. During upstream petroleum production operations, crude oil and sand eroded from formation zones are often transported as a mixture through horizontal pipes up
Samuel Eshorame Sanni, A. S. Olawale, S. S. Adefila   +2 more
doaj   +1 more source