Results 41 to 50 of about 933 (246)
, 2007 Multi-phase simulations of turbulent driven flow in a dense medium cyclone with magnetite medium have been conducted in Fluent, using the Algebraic Slip Mixture model to model the dispersed phases and the air-core, and both the Large Eddy Simulation ...
Narasimha, M. +2 more
core +1 more source
A dual-loop control system for dense medium coal washing processes with sampled and delayed measurements [PDF]
, 2017 A dual closed-loop control system is developed for a dense medium coal washing process. The controller is designed to improve the separation efficiency and energy efficiency of the dense medium cyclone coal beneficiation process simultaneously making use
Zhu, Bing, Xia, Xiaohua, Zhang, Lijun
core +1 more source
Exploiting Aeolus winds in a regional numerical weather prediction model
Quarterly Journal of the Royal Meteorological Society, EarlyView.Aeolus measured winds have proven to be beneficial for global models. However, demonstrating positive impact for limited‐area models has been a challenge so far. For the first time, we have demonstrated a statistically significant positive impact of Aeolus winds in a limited‐area model by using the 4DVar data assimilation technique and the most recent ...
Gert‐Jan Marseille +3 more
wiley +1 more source
PC-based application of dense medium cyclone fundamental simulations
, 2010 Dense medium cyclone (DMC) units have been extensively used to upgrade run-of-mine coal in the contemporary coal preparation industry. In the past decades, development of DMCs has been mostly based on empirical methods, however, this would not give rise ...
Chen, Jiang
core +1 more source
Coal dense medium separation dynamic and steady-state modelling for process control [PDF]
, 2014 Coal dense medium separation is a popular beneficiation process used for the upgrading of coal ore into power station and metallurgical coal. The control systems used in coal beneficiation are often limited to localised regulatory control of feed rate ...
Craig, Ian Keith, Meyer, Ewald Jonathan
core +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.We document for the first time how the assimilation of CS2SMOS observations improves the model representation of Arctic sea‐ice thickness (SIT) and its variability: biases are reduced (top row), while excessive variability in the Beaufort Sea and lack of variability in the ice pack are both corrected (bottom row).
Jiping Xie +3 more
wiley +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.Assimilation of AMSU‐A all‐sky observations can be increased up to fivefold if spatial observation‐error correlations are accounted for properly. New correlation estimates derived using data from ECMWF and the UK Met Office reveal that correlation length‐scales are between 75 and 150 km for AMSU‐A channels peaking in the troposphere. This is attributed
Rishabh Bhatt +9 more
wiley +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.This study investigates the statistical characteristics of recurving tropical cyclones (TCs) over the western North Pacific (WNP). We find that recurving TCs are, on average, 38% stronger than non‐recurving TCs, owing to longer ocean exposure, fewer landfalls, and passage through warmer, more favorable thermal environments.
Md Afjal Hossain +3 more
wiley +1 more source
Towards a Medium Behaviour Based Performance Model for Coal-Washing Dense Medium Cyclones
, 1989 Models which have been presented in the literature consider only selected aspects of dense medium cyclone operation, are empirical in nature and generally relate only to severely limited ranges of operating parameters. This paper reports progress towards
Lyman G.J., Wood C.J., Davis J.J.
core +1 more source
Preconcentration of a low-grade betafite ore by dense medium cyclone
, 2022 In order to find an economical and feasible short process for betafite preconcentrating and to provide a reference for the development of similar low-grade uranium deposits, preconcentration of the betafite ore was investigated based on mineralogical ...
Lv, Zihu +5 more
core +1 more source