Results 71 to 80 of about 933 (246)

Dense Medium Cyclone: From Fundamental Simulation to Process Application

, 2014
Dense medium cyclone (DMC) is a high-tonnage device that is widely used to upgrade run-of-mine coal in the coal industry. It is known that the complicated multiphase flow in the DMC is technically difficult and expensive to experimentally investigate. In
Chen, Jiang
core   +1 more source

Linkage Between Atmospheric Rivers and Overshooting Convection and Their Roles on UTLS Water Vapor During the North American Monsoon: Insight From DCOTSS

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract Overshooting convection significantly impacts the composition of the upper troposphere and lower stratosphere (UTLS), yet its linkage to Atmospheric Rivers (ARs) remains poorly understood. This study investigates how ARs modulate environmental conditions and moisture distribution associated with overshooting convection in the central and ...
Ju‐Mee Ryoo, Kenneth Bowman, Rei Ueyama, Chuntao Liu, Cameron R. Homeyer, Jessica Smith, Jonathan M. Dean‐Day, T. Paul Bui   +7 more
wiley   +1 more source

Fine coal beneficiation: comparison study of the separation efficiency of a dense medium cyclone and flat-bottom cyclone

Near-gravity material (NGM) is the fraction of coal particles with a relative density within a range of ± 0.1 of the relative density of the separating medium during coal washing. High levels of NGM in coal impede classifier separation efficiency because
Lumbela, Naledi
core  

Application of density tracers in a dense medium circuit: A case study

, 2018
Density tracers are often used to identify the separation efficiency of mineral processing equipment and the overall plant performance in several mineral and coal applications.
ÖZCAN, ÖZGÜR, ORHAN, EREN CANER, İZERDEM, DAMLA, ALPAY, E.   +3 more
core   +1 more source

ERA5‐Based Convective Environments Favorable for Tornadoes in Southern China

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Tornado occurrences vary significantly across regions in the globe, attributable in part to variations in regional climate and topography. This study analyzes the long‐term convective environments associated with tornadoes in southern China, a region previously identified as having the most favorable meteorological conditions for tornadoes ...
Kanglong Cai, Lanqiang Bai, Qian Liu, Guixing Chen, Zeyu Zhang, Wenxiu Zhong   +5 more
wiley   +1 more source

Long‐Lived Anticyclonic Eddies Facilitate Convection in the Greenland Sea Over Multiple Consecutive Winters

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Wintertime open‐ocean convection is a key process in renewing deep water; however, the processes that promote convection on local scale remain poorly understood. We investigate the role of long‐lived anticyclonic eddies in facilitating deep convection in the Greenland Sea using a new model simulation and observations.
Dong Jian, Xiaoming Zhai, Ian A. Renfrew, David P. Stevens   +3 more
wiley   +1 more source

Global Hotspots of Stalling Extratropical Cyclones

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Extratropical cyclones (ETCs) are primary drivers of extreme weather in the mid‐to‐high latitudes. We introduce a new classification of particularly impactful events—“stalling” ETCs—defined by slow movement combined with intense precipitation. Using cyclone tracking data, we find that stalling ETCs cluster systematically along the east coasts ...
Valentina Ortiz‐Guzmán, Martin Jucker, Steven Sherwood   +2 more
wiley   +1 more source

An analysis of mass balance and fractional particle size distributions of coal and magnetite in a dense-medium cyclone circuit

, 2009
In this study, a complete mass balance of magnetite and coal in the various parts of a dense-medium cyclone (DMC) circuit was determined and fractional size distributions of magnetite and coal were analyzed for the circuit.
Çelik, Haluk
core   +1 more source

Buoyancy Flux and Its Environmental Modulation in the Vertical Development of Shallow Cumulus in the Central Amazon

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 11, 16 June 2026.
Abstract This study investigates the vertical development of shallow cumulus (ShCu) clouds in the Central Amazon (CAMZ) by combining large‐eddy simulations (LES) with observational data from the GoAmazon2014/5 campaign. Analyses of turbulent kinetic energy budgets, updraft mass flux, moisture flux, and surface fluxes across cloud sizes indicate that ...
Silvio N. Figueroa, Jhonatan A. A. Manco, Georgios A. Efstathiou   +2 more
wiley   +1 more source

Atmospheric Dust Transport to High‐Elevation Dronning Maud Land, Antarctica, Modulated by Cyclonic Circulation, the Pacific Decadal Oscillation, and Source Emissions

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 11, 16 June 2026.
Abstract The dependence of aeolian dust transport on atmospheric circulation patterns allows dust preserved in Antarctic ice cores to serve as a proxy for past circulation variability. Here, we investigate dust transport to high‐elevation Dronning Maud Land (DML) in Antarctica through analysis of the 1300‐year‐old ISOL‐ICE ice core dust record together
K. C. Henson, V. H. L. Winton, K. R. Clem, R. Mulvaney, M. M. Frey   +4 more
wiley   +1 more source