Engineering
Inertinite
100%
Nuclear Magnetic Resonance
100%
Inertinite Macerals
100%
Aromatics
75%
Cluster Size
50%
Aromatic Ring
50%
Reflectance
25%
Coal Sample
25%
Low-Temperature
25%
Bituminous Coal
25%
Semifusinite
25%
Pyrolysis
25%
Structural Parameter
25%
Parent Coal
25%
Earth and Planetary Sciences
Vitrinite
100%
Maceral
100%
Nuclear Magnetic Resonance
100%
Republic of South Africa
100%
Charring
50%
Carbon 14
25%
Northern Hemisphere
25%
Aromatic Hydrocarbon
25%
Reflectance
25%
Pyrolysis
25%
Bituminous Coal
25%
Cross Polarization
25%
Physics
Nuclear Magnetic Resonance
100%
Nuclear Magnetic Resonance
100%
Charring
100%
Reflectance
50%
Carbon 14
50%
Cross Polarization
50%
Material Science
Nuclear Magnetic Resonance
100%
Lignin
100%
Oxidation Reaction
66%
Density
33%
Bituminous Coal
33%
Solid-State Nuclear Magnetic Resonance
33%
Cross Polarization Magic Angle Spinning
33%
Keyphrases
Carbon Ring
37%
Multi-ring
25%
Cluster Size
25%
Aromatic Carbon
25%
Aromatic Cluster
12%
Ring Clusters
12%
Aerial Oxidation
12%
Syringol
12%
Guaiacol
12%
Lignin Pyrolysis
12%
Cross-polarization Magic Angle Spinning
12%
Anatomical Structure
12%
C-lignin
12%
Lignin-derived Aromatics
12%
Agricultural and Biological Sciences
Alpha Oxidation
100%
Cell Wall
50%
African
50%