Results 61 to 70 of about 4,939,312 (268)

Dehydration Melting Below the Undersaturated Transition Zone

Geochemistry, Geophysics, Geosystems, 2020
A reflector 70–130 km below the base of the transition zone beneath Tibet is observed in receiver functions and underside seismic reflections, at depths consistent with the transition of garnet to bridgmanite.
W. R. Panero, C. Thomas, R. Myhill, J. S. Pigott, C. Raepsaet, H. Bureau   +5 more
doaj   +1 more source

Tetrahedrally coordinated carbonates in Earth’s lower mantle [PDF]

Nature Communications, 2015
Carbonates are the main species that bring carbon deep into our planet through subduction. They are an important rock-forming mineral group, fundamentally distinct from silicates in Earth's crust in that carbon binds to three oxygen atoms, while silicon is bonded to four oxygens.
Boulard, Eglantine, Pan, Ding, Galli, Giulia, Liu, Zhenxian, Mao, Wendy, L   +4 more
openaire   +4 more sources

Assessment of Gibbs Free Energy Calculation in PI‐Controlled Heating

Chemie Ingenieur Technik, EarlyView.
For description and control of chemical processes in lab or industry thermodynamic variable Gibbs free energy provides opportunity to compare and interpret phenomena, even on a quantitative level. In a case study for PI‐controlled heating, impacts on its limits from control delay until parameter quantization are highlighted and assessed.
Jannik Dutschke, Samira Johanna Geiger, Liane Andrea Haufe, Sebastian Kaiser, Markus Seifert   +4 more
wiley   +1 more source

Phase Relations and Melting of SiO2 Under Mantle Conditions Determined From Machine Learning Potentials

Geophysical Research Letters
SiO2 is a fundamental component of planetary interiors, yet its high‐pressure melting and phase relations remain uncertain. We develop a machine learning potential with first‐principles accuracy and perform large‐scale two‐phase coexistence simulations ...
Xin Deng, Jie Deng, Michael J. Walter, Yingwei Fei, Jing Yang, R. E. Cohen   +5 more
doaj   +1 more source

Velocity structure of the mantle and abyssal fluids of Southeast Asia

Геофизический журнал, 2012
The real work is devoted to consideration of velocity structure of mantle under SouthEast Asia with the purpose of possible selection of velocity mantle columns, communication of them with petroleumgas pools.
L. N. Zayets, Ding True Kao, T. A. Tsvetkova   +2 more
doaj   +1 more source

Design and implementation of a 3D‐printed modular distillation tower for experimental teaching in chemical engineering

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Several authors have reported the disconnection between the skills, abilities, and attitudes of graduates from STEM careers with the current needs of the labour market. In science and engineering fields, research has found the need for interdisciplinary approaches that encourage meaningful learning.
Úrsula Manríquez‐Tolsá, Carlos Zaid Bustamante‐Pérez, José Manuel García‐Anaya, Ángel Tlacaelel Ortiz‐Manzano, Roeb García‐Arrazola, Eva Patricia Bermúdez‐García, Diana Iruretagoyena Ferrer, Miguel Ángel Pimentel‐Alarcón   +7 more
wiley   +1 more source

Stress Fields in Slabs Penetrating into the Lower Mantle, and Rheology and Composition of the Lower Mantle.

Proceedings of the Japan Academy, Series B, 1994
Focal mechanisms of deep-focus earthquakes show compressional stress fields in the deepest part of upper mantle slabs. We examine mechanisms to realize the stress fields using numerical models of slabs interacting with a phase and/or a chemical boundary. The compressional stress field implies that compositional density difference greater than 2% exists
NAKAKUKI, Tomoeki, FUJIMOTO, Hiromi
openaire   +2 more sources

Synergistic extraction of critical metals from the oxalic leachate of spent FCC catalyst

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study introduces an improved hydrometallurgy process utilizing a synergistic approach to improve metal recovery from secondary sources of critical metals. It provides a more efficient alternative to traditional single‐extractant methods for separating critical metals from spent refinery catalysts.
Silindile Gumede, Amir H. Mohammadi, Mbuyu G. Ntunka   +2 more
wiley   +1 more source

Velocity typing the middle and lower mantle of Europe

Геофизический журнал, 2015
We used 3D P-velocity model of the mantle of Europe. The model was constructed by V. S. Geyko proposed method of Teylor approximate solution of seismic tomography. The velocity structure of the middle and lower mantle of the velocity model was analyzed.
I. Bugaenko, L. Zaets, T. Tsvetkova
doaj   +1 more source

Flow cytometry‐based monitoring of chimeric antigen receptor (CAR) T cells: Reagent selection, assay design, and clinical utility

Cytometry Part B: Clinical Cytometry, EarlyView.
Abstract Accurate quantification of chimeric antigen receptor (CAR) T cells is essential for monitoring post‐infusion CART expansion and persistence and for real‐time clinical decision‐making. Multiparameter flow cytometry (MFC) enables rapid, live‐cell detection with absolute quantification and concurrent immunophenotypic characterization. This review
Jianhua Ling, Wei Wang, Sa A. Wang
wiley   +1 more source