Class information for:
Level 1: HYDROGEN SAFETY//JET FIRE//HYDROGEN DISPERSION

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
21 4 THERMODYNAMICS//MECHANICS//ENGINEERING, MECHANICAL 471779
557 3       FLAME RETARDANCY//JOURNAL OF FIRE SCIENCES//FIRE SAFETY JOURNAL 18104
2769 2             HYDROGEN SAFETY//JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES//HEAVY GAS 3401
18142 1                   HYDROGEN SAFETY//JET FIRE//HYDROGEN DISPERSION 591

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 HYDROGEN SAFETY authKW 2749437 13% 66% 78
2 JET FIRE authKW 760121 5% 51% 28
3 HYDROGEN DISPERSION authKW 600811 2% 87% 13
4 HYDROGEN LEAKAGE authKW 580663 2% 78% 14
5 HYSAFER address 460891 2% 79% 11
6 HYDROGEN SAFETY ENGN HYSAFER address 379553 2% 65% 11
7 HAZARDOUS AREA CLASSIFICATION authKW 373287 1% 100% 7
8 SPONTANEOUS IGNITION authKW 320435 4% 24% 25
9 DIFFUSION IGNITION authKW 319960 1% 100% 6
10 HIGH PRESSURE RELEASE authKW 290331 1% 78% 7

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Electrochemistry 25437 56% 0% 329
2 Energy & Fuels 22816 63% 0% 375
3 Chemistry, Physical 4360 57% 0% 334
4 Engineering, Chemical 1749 24% 0% 139
5 Thermodynamics 294 6% 0% 37
6 Engineering, General 263 6% 0% 33
7 Engineering, Environmental 135 4% 0% 26
8 Engineering, Mechanical 83 5% 0% 28
9 Mechanics 55 4% 0% 26
10 Engineering, Petroleum 49 1% 0% 6

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 HYSAFER 460891 2% 79% 11
2 HYDROGEN SAFETY ENGN HYSAFER 379553 2% 65% 11
3 HEAT TRANSFER FLUID MECH 191971 1% 60% 6
4 EXPLOS DISPERS UNIT 159980 1% 100% 3
5 CREAT SYMBIOSIS SOC RISK 119984 1% 75% 3
6 AAH 106653 0% 100% 2
7 CHALMERS TEKNIKPK 06120 106653 0% 100% 2
8 CNEA ARGENTINE ATOM ENERGY COMMISS 106653 0% 100% 2
9 DEN DANS DM2S SFME LEEF 106653 0% 100% 2
10 DM2SSFME ETUD EXPT FLUIDES 106653 0% 100% 2

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 266312 55% 2% 327
2 JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES 51909 8% 2% 49
3 PROCESS SAFETY PROGRESS 8233 2% 1% 12
4 PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 7331 3% 1% 15
5 GAS ENGINEERING & MANAGEMENT 3553 0% 7% 1
6 FIRE SAFETY JOURNAL 1420 1% 0% 7
7 ATW-INTERNATIONALE ZEITSCHRIFT FUR KERNENERGIE 1266 0% 1% 2
8 COMBUSTION SCIENCE AND TECHNOLOGY 1004 2% 0% 9
9 PROCEEDINGS OF THE COMBUSTION INSTITUTE 951 1% 0% 8
10 SCIENCE AND TECHNOLOGY OF ENERGETIC MATERIALS 874 0% 1% 2

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 HYDROGEN SAFETY 2749437 13% 66% 78 Search HYDROGEN+SAFETY Search HYDROGEN+SAFETY
2 JET FIRE 760121 5% 51% 28 Search JET+FIRE Search JET+FIRE
3 HYDROGEN DISPERSION 600811 2% 87% 13 Search HYDROGEN+DISPERSION Search HYDROGEN+DISPERSION
4 HYDROGEN LEAKAGE 580663 2% 78% 14 Search HYDROGEN+LEAKAGE Search HYDROGEN+LEAKAGE
5 HAZARDOUS AREA CLASSIFICATION 373287 1% 100% 7 Search HAZARDOUS+AREA+CLASSIFICATION Search HAZARDOUS+AREA+CLASSIFICATION
6 SPONTANEOUS IGNITION 320435 4% 24% 25 Search SPONTANEOUS+IGNITION Search SPONTANEOUS+IGNITION
7 DIFFUSION IGNITION 319960 1% 100% 6 Search DIFFUSION+IGNITION Search DIFFUSION+IGNITION
8 HIGH PRESSURE RELEASE 290331 1% 78% 7 Search HIGH+PRESSURE+RELEASE Search HIGH+PRESSURE+RELEASE
9 HYDROGEN RELEASES 266634 1% 100% 5 Search HYDROGEN+RELEASES Search HYDROGEN+RELEASES
10 NOTIONAL NOZZLE 266634 1% 100% 5 Search NOTIONAL+NOZZLE Search NOTIONAL+NOZZLE

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 28415 FAST FILLING//FAST FILLING PROCESS//CRYO ADSORPTION
2 13431 HEAVY GAS//DENSE GAS DISPERSION//HEAVY GAS DISPERSION
3 6709 DOMINO EFFECT//JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES//BLEVE
4 15782 NONCONDENSABLE GAS//NON CONDENSABLE GAS//PASSIVE CONTAINMENT COOLING SYSTEM
5 25425 DECOMPRESSION WAVE SPEED//GASDECOM//RICH GAS
6 12530 PLUMES THERMALS//HELIUM PLUME//PLANE FOUNTAIN
7 9578 DUST EXPLOSION//JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES//GAS EXPLOSION
8 8509 HYDROGEN ECONOMY//INTERNATIONAL JOURNAL OF HYDROGEN ENERGY//ELECTROLYSER
9 3599 LAMINAR BURNING VELOCITY//LAMINAR FLAME SPEED//MARKSTEIN LENGTH
10 32338 SONIC NOZZLE//CRITICAL NOZZLE//CRITICAL PRESSURE RATIO

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