A comparison of various models in predicting ignition delay in single-particle coal combustion

2014 ◽  
Vol 161 (7) ◽  
pp. 1900-1910 ◽  
Author(s):  
Babak Goshayeshi ◽  
James C. Sutherland
Fuel ◽  
2021 ◽  
Vol 287 ◽  
pp. 119412
Author(s):  
Huimin Liu ◽  
Chunbo Wang ◽  
Chan Zou ◽  
Yue Zhang ◽  
Edward Anthony

2019 ◽  
Vol 205 ◽  
pp. 534-546 ◽  
Author(s):  
Huimin Liu ◽  
Chunbo Wang ◽  
Yue Zhang ◽  
Chan Zou ◽  
Edward Anthony

1982 ◽  
Vol 19 (1) ◽  
pp. 1123-1130 ◽  
Author(s):  
L.D. Timothy ◽  
A.F. Sarofim ◽  
J.M. Béer

Author(s):  
J. Frank ◽  
P.-Y. Sizaret ◽  
A. Verschoor ◽  
J. Lamy

The accuracy with which the attachment site of immunolabels bound to macromolecules may be localized in electron microscopic images can be considerably improved by using single particle averaging. The example studied in this work showed that the accuracy may be better than the resolution limit imposed by negative staining (∽2nm).The structure used for this demonstration was a halfmolecule of Limulus polyphemus (LP) hemocyanin, consisting of 24 subunits grouped into four hexamers. The top view of this structure was previously studied by image averaging and correspondence analysis. It was found to vary according to the flip or flop position of the molecule, and to the stain imbalance between diagonally opposed hexamers (“rocking effect”). These findings have recently been incorporated into a model of the full 8 × 6 molecule.LP hemocyanin contains eight different polypeptides, and antibodies specific for one, LP II, were used. Uranyl acetate was used as stain. A total of 58 molecule images (29 unlabelled, 29 labelled with antl-LPII Fab) showing the top view were digitized in the microdensitometer with a sampling distance of 50μ corresponding to 6.25nm.


Author(s):  
James S. Webber

INTRODUCTION“Acid rain” and “acid deposition” are terms no longer confined to the lexicon of atmospheric scientists and 1imnologists. Public awareness of and concern over this phenomenon, particularly as it affects acid-sensitive regions of North America, have increased dramatically in the last five years. Temperate ecosystems are suffering from decreased pH caused by acid deposition. Human health may be directly affected by respirable sulfates and by the increased solubility of toxic trace metals in acidified waters. Even man's monuments are deteriorating as airborne acids etch metal and stone features.Sulfates account for about two thirds of airborne acids with wet and dry deposition contributing equally to acids reaching surface waters or ground. The industrial Midwest is widely assumed to be the source of most sulfates reaching the acid-sensitive Northeast since S02 emitted as a byproduct of coal combustion in the Midwest dwarfs S02 emitted from all sources in the Northeast.


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