Class information for:
Level 1: DUAL FUEL ENGINE//HCNG//DUAL FUEL

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
6855 1360 23.9 37%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
1158 9042 DIESEL ENGINE//ENGINE PERFORMANCE//INTERNATIONAL JOURNAL OF ENGINE RESEARCH

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 DUAL FUEL ENGINE Author keyword 78 69% 5% 66
2 HCNG Author keyword 32 85% 1% 17
3 DUAL FUEL Author keyword 28 44% 4% 49
4 HYDROGEN INTERNAL COMBUSTION ENGINE Author keyword 21 90% 1% 9
5 JET IGNITION Author keyword 19 80% 1% 12
6 SI ENGINES Author keyword 16 48% 2% 25
7 HYDROGEN FUELED ENGINE Author keyword 15 77% 1% 10
8 PILOT IGNITION Author keyword 15 73% 1% 11
9 SPARK IGNITION ENGINE Author keyword 12 21% 4% 50
10 INTERNAL COMBUST ENGN Address 10 46% 1% 16

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 DUAL FUEL ENGINE 78 69% 5% 66 Search DUAL+FUEL+ENGINE Search DUAL+FUEL+ENGINE
2 HCNG 32 85% 1% 17 Search HCNG Search HCNG
3 DUAL FUEL 28 44% 4% 49 Search DUAL+FUEL Search DUAL+FUEL
4 HYDROGEN INTERNAL COMBUSTION ENGINE 21 90% 1% 9 Search HYDROGEN+INTERNAL+COMBUSTION+ENGINE Search HYDROGEN+INTERNAL+COMBUSTION+ENGINE
5 JET IGNITION 19 80% 1% 12 Search JET+IGNITION Search JET+IGNITION
6 SI ENGINES 16 48% 2% 25 Search SI+ENGINES Search SI+ENGINES
7 HYDROGEN FUELED ENGINE 15 77% 1% 10 Search HYDROGEN+FUELED+ENGINE Search HYDROGEN+FUELED+ENGINE
8 PILOT IGNITION 15 73% 1% 11 Search PILOT+IGNITION Search PILOT+IGNITION
9 SPARK IGNITION ENGINE 12 21% 4% 50 Search SPARK+IGNITION+ENGINE Search SPARK+IGNITION+ENGINE
10 CYCLE BY CYCLE VARIATIONS 9 83% 0% 5 Search CYCLE+BY+CYCLE+VARIATIONS Search CYCLE+BY+CYCLE+VARIATIONS

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 SPARK IGNITION ENGINE 40 28% 9% 122
2 BY CYCLE VARIATIONS 37 81% 2% 22
3 FUELED ENGINE 25 77% 1% 17
4 DUAL FUEL 25 65% 2% 24
5 NATURAL GAS ENGINE 20 67% 1% 18
6 JET IGNITION 14 100% 1% 7
7 SI ENGINE 12 25% 3% 42
8 CNG ENGINE 11 100% 0% 6
9 HYDROGEN ENGINE 11 78% 1% 7
10 COMPRESSION IGNITION 10 42% 1% 18

Journals

Reviews


Title Publ. year Cit. Active
references		 % act. ref.
to same field
Recent progress in the use of hydrogen as a fuel for internal combustion engines 2014 18 31 68%
The hydrogen-fueled internal combustion engine: a technical review 2006 209 21 90%
Natural-gas fueled spark-ignition (SI) and compression-ignition (CI) engine performance and emissions 2011 58 70 69%
Effect of engine parameters and type of gaseous fuel on the performance of dual-fuel gas diesel engines-A critical review 2009 70 24 96%
Hydrogen-fueled internal combustion engines 2009 134 95 45%
Research and development of hydrogen fuelled engines in China 2012 15 44 73%
An experimental investigation of hydrogen-enriched air induction in a diesel engine system 2008 51 9 67%
The influence of fuel composition on the combustion and emission characteristics of natural gas fueled engines 2014 3 35 66%
Spark ignition natural gas engines - A review 2007 74 8 50%
An overview of hydrogen as a vehicle fuel 2012 22 61 41%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 INTERNAL COMBUST ENGN 10 46% 1.2% 16
2 ERC ENGINES 8 70% 0.5% 7
3 PL ENERGY SYST GRP 6 80% 0.3% 4
4 TRANSPORTTECHNOL 6 80% 0.3% 4
5 NAVAL SCI 6 71% 0.4% 5
6 INTERNAL COMBUST ENGINES 6 15% 2.7% 37
7 ENGN MECH MFG ENGN 5 42% 0.7% 10
8 ENGINE ENGN 4 42% 0.6% 8
9 MARINE INTERNAL COMBUST ENGINES 4 75% 0.2% 3
10 THERMODYNAM PROP SYST SECT 4 56% 0.4% 5

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000231321 ENGINE THERMAL MANAGEMENT//AIR COOLED ENGINE//INSTANTANEOUS HEAT FLUX
2 0.0000183320 LAMINAR BURNING VELOCITY//MARKSTEIN LENGTH//LAMINAR FLAME SPEED
3 0.0000130432 DIESEL ENGINE//ENGINE PERFORMANCE//BIODIESEL
4 0.0000129208 2 5 DIMETHYLFURAN//GASOLINE ETHANOL BLENDS//ALCOHOL GASOLINE BLENDS
5 0.0000118046 HORIZONTAL LENGTH//UNDERGROUND HYDROGEN STORAGE//CETH
6 0.0000103701 ENGINE CONTROL//SPARK ASSISTED COMPRESSION IGNITION//CYLINDER PRESSURE
7 0.0000060540 TUMBLE//IN CYLINDER FLOW//TUMBLE RATIO
8 0.0000059210 CREVICE VOLUME//HYDROCARBON EMISSIONS//PISTON CREVICE
9 0.0000057850 HYDROGEN SAFETY//FAST FILLING//FAST FILLING PROCESS
10 0.0000041363 RAPID COMPRESSION MACHINE//SHOCK TUBE//COMBUST CHEM