Results 51 to 60 of about 2,678,225 (236)

CFD modelling and analysis of the multiphase flow and performance of dense medium cyclone [PDF]

, 2014
A computational fluid dynamics (CFD) model is proposed to describe the multiphase flow in a dense-medium cyclone (DMC). In this model, the volume of fluid (VOF) multiphase model is first used to determine the initial shape and position of the air core ...
Qi, Zheng
core   +1 more source

Presence and abundance of airborne Botryosphaeriaceae conidia are governed by temperature and season in the Okanagan Valley, Canada

Pest Management Science, EarlyView.
Presence and abundance of Botryosphaeria dieback inoculum were determined using spore trapping and droplet digital polymerase chain reaction in British Columbia, Canada. Highest inoculum was recorded in spring (April–June) and again in summer (July–September). These results suggest early pruning in December–January can mitigate pruning wound infections.
Isidora Silva‐Valderrama, Jane Theilmann, Melanie Walker, Julie Boulé, Daniel T O'Gorman, José R Úrbez‐Torres   +5 more
wiley   +1 more source

Simulating magnetite medium segregation in a dense medium cyclone using rheology based CFD model

, 2012
The complex nature of multi-phase flow in dense medium cyclones has restricted plant operators and designers to rely on empirical equations for predicting the performance.
M, Narasimha, V T S R, Kumar Reddy, Mangadody, Narasimha   +2 more
core  

Oil/water separation in a novel cyclone separator [PDF]

, 2007
Conventional bulk oil-water separation is performed in large gravity separators that take up large areas and potentially contain large volumes of hazardous material.
Stone, Andrew Colin
core   +3 more sources

Absorption and translocation of 14C‐propiconazole associated with two adjuvants in young coffee plants

Pest Management Science, EarlyView.
Experimental workflow evaluating 14C‐propiconazole absorption and translocation in Coffea arabica with two biodegradable adjuvants, quantified at six post‐application time points using radioscanner and liquid scintillation spectrometry. Abstract BACKGROUND This study evaluated the absorption, translocation and distribution of 14C‐propiconazole applied ...
Valéria de Souza Ivo, Emerson Leite, José Mak, Valdemar Luiz Tornisielo, Kassio Ferreira Mendes   +4 more
wiley   +1 more source

Stratospheric influence on tropical cyclone evolution

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We developed a metric based on moist static energy to detect and quantify the intrusion of stratospheric air into the inner core of tropical cyclones. High‐resolution numerical simulations show that this stratospheric interaction forms warm anomalies (high‐level warm cores) in the upper troposphere.
Andrea Davin, Giousef Alexandros Charinti, Caroline Muller, Andrea Polesello, Claudia Pasquero   +4 more
wiley   +1 more source

Dynamic model for a dense medium drum separator in coal beneficiation [PDF]

, 2015
Dense medium drum (DMD) separators are unit processes that are typically used to beneficiate coal, iron ore and other minerals by making use of density separation. Some coal dense medium separation plants typically include a DMD separator.
Craig, Ian Keith, Meyer, Ewald Jonathan
core   +1 more source

A new scale‐selective measure of curvature for meteorological fields

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We introduce a novel diagnostic called curvature using radial variation (CURV) that quantifies the local cyclonic or anticyclonic curvature of mean‐sea‐level pressure or geopotential height gridded fields over selected scales. A depiction of how CURV values relate to differing cyclonic curvature is shown in the figure.
Nigel Roberts, Timothy Hewson, Anca Brookshaw, Matthieu Chevallier   +3 more
wiley   +1 more source

Enhancing severe convection forecasts with microwave radiance assimilation in limited‐area models

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Microwave satellite radiances remain largely underexploited in convection‐permitting limited‐area models. We assess the assimilation of humidity‐sensitive radiances from the MHS instrument in the operational ICON‐2I model, improving the precipitation forecast of a severe convective event over the Marche region, Italy, substantially by correcting ...
Marcello Grenzi, Thomas Gastaldo, Virginia Poli, Chiara Marsigli, Tijana Janjic, Alberto Carrassi   +5 more
wiley   +1 more source

Synoptic and large‐scale drivers of extreme precipitation events in the Himalayas

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Months associated with maximum frequency of extreme precipitation events (EPEs). 6102 extreme precipitation days (i.e., exceeding 99th percentile for daily precipitation) occurred across the Karakoram, Western Himalayas (WH), Central Himalayas (CH) and Eastern Himalayas (EH) during 1979 to 2023.
Priya Bharati, Pranab Deb, Kieran M. R. Hunt   +2 more
wiley   +1 more source