Class information for:
Level 3: HYDROGEN STORAGE//METAL HYDRIDES//HYDROGEN STORAGE ALLOY

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
1 4 PHYSICS, CONDENSED MATTER//PHYSICS, APPLIED//MATERIALS SCIENCE, MULTIDISCIPLINARY 2188495
382 3       HYDROGEN STORAGE//METAL HYDRIDES//HYDROGEN STORAGE ALLOY 33830
320 2             HYDROGEN STORAGE//METAL HYDRIDES//HYDROGEN STORAGE ALLOY 18564
2114 2             HYPERFINE INTERACTIONS//MUONIUM//PERTURBED ANGULAR CORRELATION 5482
2572 2             AMMONIA BORANE//HYDROGEN GENERATION//SODIUM BOROHYDRIDE 3946
3428 2             MECHANOLUMINESCENCE//TRIBOLUMINESCENCE//TRIBOEMISSION 1678
3584 2             COLD FUSION//FUSION TECHNOLOGY//PIEZONUCLEAR REACTIONS 1400
3721 2             ZONE REFINING//SUPERCONDUCTING RF CAVITIES//PLASMA ARC MELTING 1185
3884 2             ROCHOW REACTION//METHYLCHLOROSILANE//WERKSTOFFWISSEN 4 939
4146 2             ELE OCHEM HYDROGEN ENERGY//NOVOSHAKHTINSK BRANCH//PALLADIUM PLATE 636

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 HYDROGEN STORAGE authKW 1153350 7% 56% 2236
2 METAL HYDRIDES authKW 882327 4% 79% 1205
3 HYDROGEN STORAGE ALLOY authKW 763999 3% 94% 871
4 HYDROGEN STORAGE MATERIALS authKW 755078 3% 89% 917
5 HYDROGEN ABSORBING MATERIALS authKW 396302 2% 82% 520
6 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY journal 387086 9% 14% 3002
7 MAGNESIUM HYDRIDE authKW 321565 1% 95% 364
8 AMMONIA BORANE authKW 315099 1% 91% 371
9 JOURNAL OF ALLOYS AND COMPOUNDS journal 266346 10% 8% 3510
10 METAL HYDRIDE ELECTRODE authKW 210329 1% 97% 234

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Metallurgy & Metallurgical Engineering 111813 20% 2% 6691
2 Chemistry, Physical 97753 37% 1% 12443
3 Electrochemistry 97688 15% 2% 5054
4 Materials Science, Multidisciplinary 51384 29% 1% 9930
5 Energy & Fuels 47283 13% 1% 4361
6 Physics, Condensed Matter 29799 17% 1% 5809
7 Physics, Nuclear 8858 5% 1% 1833
8 Physics, Atomic, Molecular & Chemical 6809 7% 1% 2308
9 Nuclear Science & Technology 2859 3% 0% 1162
10 Physics, Multidisciplinary 2787 6% 0% 1992

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 INTEGRATED EXPLOITAT BAIYUN OBO MULTIMET 49271 0% 100% 53
2 CHIM MET TER RA 42100 0% 53% 86
3 NEW ENERGY MAT CHEM 26254 0% 20% 141
4 ADV ENERGY STORAGE MAT GUANGDONG PROV 25602 0% 53% 52
5 ENERGY CONVERS DEVICES INC 24171 0% 100% 26
6 ADV MAT PLICAT BATTERIES ZHEJIANG PRO 20571 0% 23% 95
7 MAT THERMOCHEM 20201 0% 38% 57
8 MAT SCI ENGN 19162 8% 1% 2675
9 RECH HYDROGENE 18068 0% 37% 53
10 MERLIN GRP 17993 0% 88% 22

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 387086 9% 14% 3002
2 JOURNAL OF ALLOYS AND COMPOUNDS 266346 10% 8% 3510
3 HYPERFINE INTERACTIONS 188098 4% 16% 1257
4 JOURNAL OF THE LESS-COMMON METALS 187321 3% 22% 940
5 ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE NEUE FOLGE 63384 1% 26% 259
6 JOURNAL OF POWER SOURCES 17371 2% 3% 685
7 FUSION TECHNOLOGY 14982 1% 7% 239
8 RARE METAL MATERIALS AND ENGINEERING 11471 1% 3% 407
9 JOURNAL OF PHYSICS F-METAL PHYSICS 10546 0% 8% 153
10 FIZIKA METALLOV I METALLOVEDENIE 10135 1% 5% 253

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 HYDROGEN STORAGE 1153350 7% 56% 2236 Search HYDROGEN+STORAGE Search HYDROGEN+STORAGE
2 METAL HYDRIDES 882327 4% 79% 1205 Search METAL+HYDRIDES Search METAL+HYDRIDES
3 HYDROGEN STORAGE ALLOY 763999 3% 94% 871 Search HYDROGEN+STORAGE+ALLOY Search HYDROGEN+STORAGE+ALLOY
4 HYDROGEN STORAGE MATERIALS 755078 3% 89% 917 Search HYDROGEN+STORAGE+MATERIALS Search HYDROGEN+STORAGE+MATERIALS
5 HYDROGEN ABSORBING MATERIALS 396302 2% 82% 520 Search HYDROGEN+ABSORBING+MATERIALS Search HYDROGEN+ABSORBING+MATERIALS
6 MAGNESIUM HYDRIDE 321565 1% 95% 364 Search MAGNESIUM+HYDRIDE Search MAGNESIUM+HYDRIDE
7 AMMONIA BORANE 315099 1% 91% 371 Search AMMONIA+BORANE Search AMMONIA+BORANE
8 METAL HYDRIDE ELECTRODE 210329 1% 97% 234 Search METAL+HYDRIDE+ELECTRODE Search METAL+HYDRIDE+ELECTRODE
9 HYDROGEN GENERATION 203885 1% 47% 467 Search HYDROGEN+GENERATION Search HYDROGEN+GENERATION
10 COMPLEX HYDRIDES 201790 1% 98% 221 Search COMPLEX+HYDRIDES Search COMPLEX+HYDRIDES

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 3


rank cluster_id2 link
1 65 JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS//METALLIC GLASSES//PHYSICS, CONDENSED MATTER
2 460 FUSION ENGINEERING AND DESIGN//JOURNAL OF NUCLEAR MATERIALS//NUCLEAR SCIENCE & TECHNOLOGY
3 42 ELECTROCHEMISTRY//FUEL CELL//JOURNAL OF ELECTROANALYTICAL CHEMISTRY
4 129 METALLURGY & METALLURGICAL ENGINEERING//OXIDATION OF METALS//MATERIALS SCIENCE, MULTIDISCIPLINARY
5 211 CORROSION SCIENCE//CORROSION//EIS
6 641 QUASICRYSTALS//APPROXIMANT//DECAGONAL QUASICRYSTAL
7 181 MINERALOGY//AMERICAN MINERALOGIST//PHYSICS AND CHEMISTRY OF MINERALS
8 473 MGB2//IRON BASED SUPERCONDUCTOR//MAGNESIUM DIBORIDE
9 564 MOLTEN SALT//PYROPROCESSING//ALUMINUM ELECTROLYSIS
10 719 STRENGTH PHYS MAT SCI//FIZIKA METALLOV I METALLOVEDENIE//PHYSICAL MESOMECHANICS

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