Class information for:
Level 1: MAGNESIUM HYDRIDE//HYDROGEN STORAGE//HYDROGEN STORAGE MATERIALS

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
559 1                   MAGNESIUM HYDRIDE//HYDROGEN STORAGE//HYDROGEN STORAGE MATERIALS 3335

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 MAGNESIUM HYDRIDE authKW 2003643 9% 74% 285
2 HYDROGEN STORAGE authKW 1420321 23% 19% 778
3 HYDROGEN STORAGE MATERIALS authKW 670039 8% 26% 271
4 MGH2 authKW 576096 3% 64% 95
5 MG2NI TYPE ALLOY authKW 548011 2% 100% 58
6 MG2NI authKW 523372 2% 78% 71
7 HYDROGEN ABSORBING MATERIALS authKW 482597 5% 28% 180
8 HYDRIDING COMBUSTION SYNTHESIS authKW 378161 1% 98% 41
9 METAL HYDRIDES authKW 323670 7% 15% 229
10 MECHANICAL ALLOYING MILLING authKW 294145 1% 65% 48

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Metallurgy & Metallurgical Engineering 46462 39% 0% 1317
2 Chemistry, Physical 25769 58% 0% 1926
3 Electrochemistry 24581 23% 0% 782
4 Materials Science, Multidisciplinary 19223 53% 0% 1775
5 Energy & Fuels 16404 23% 0% 777
6 Nanoscience & Nanotechnology 754 6% 0% 205
7 Physics, Condensed Matter 127 6% 0% 184
8 Physics, Applied 79 6% 0% 216
9 Materials Science, Coatings & Films 62 1% 0% 49
10 Chemistry, Multidisciplinary 20 5% 0% 168

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 INTEGRATED EXPLOITAT BAIYUN OBO MULTIMET 257404 1% 72% 38
2 SHANGHAI ENGN MG MAT PLICAT 109319 1% 64% 18
3 KIMS 92160 1% 49% 20
4 RECH HYDROGENE 75798 1% 24% 34
5 NEW ENERGY MAT CHEM 70044 2% 10% 72
6 MERLIN GRP 63859 0% 52% 13
7 HYDROGEN FUEL CELLS 60723 0% 43% 15
8 CSIRO HYDROGEN MAT ALLIANCE 56679 0% 50% 12
9 ELECTED STATE 48372 0% 39% 13
10 HYDROGEN FUEL CELLS ADV MAT ENGN 47242 0% 100% 5

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 184487 19% 3% 648
2 JOURNAL OF ALLOYS AND COMPOUNDS 135012 23% 2% 779
3 KOREAN JOURNAL OF METALS AND MATERIALS 17405 1% 4% 43
4 JOURNAL OF THE LESS-COMMON METALS 10808 2% 2% 71
5 RARE METAL MATERIALS AND ENGINEERING 5515 3% 1% 87
6 METALS AND MATERIALS INTERNATIONAL 2726 1% 1% 27
7 MATERIALS TRANSACTIONS 1996 1% 1% 40
8 INTERMETALLICS 1937 1% 1% 30
9 TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 1933 1% 1% 42
10 JOURNAL OF POWER SOURCES 1845 2% 0% 70

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 MAGNESIUM HYDRIDE 2003643 9% 74% 285 Search MAGNESIUM+HYDRIDE Search MAGNESIUM+HYDRIDE
2 HYDROGEN STORAGE 1420321 23% 19% 778 Search HYDROGEN+STORAGE Search HYDROGEN+STORAGE
3 HYDROGEN STORAGE MATERIALS 670039 8% 26% 271 Search HYDROGEN+STORAGE+MATERIALS Search HYDROGEN+STORAGE+MATERIALS
4 MGH2 576096 3% 64% 95 Search MGH2 Search MGH2
5 MG2NI TYPE ALLOY 548011 2% 100% 58 Search MG2NI+TYPE+ALLOY Search MG2NI+TYPE+ALLOY
6 MG2NI 523372 2% 78% 71 Search MG2NI Search MG2NI
7 HYDROGEN ABSORBING MATERIALS 482597 5% 28% 180 Search HYDROGEN+ABSORBING+MATERIALS Search HYDROGEN+ABSORBING+MATERIALS
8 HYDRIDING COMBUSTION SYNTHESIS 378161 1% 98% 41 Search HYDRIDING+COMBUSTION+SYNTHESIS Search HYDRIDING+COMBUSTION+SYNTHESIS
9 METAL HYDRIDES 323670 7% 15% 229 Search METAL+HYDRIDES Search METAL+HYDRIDES
10 MECHANICAL ALLOYING MILLING 294145 1% 65% 48 Search MECHANICAL+ALLOYING+MILLING Search MECHANICAL+ALLOYING+MILLING

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 20620 NAMGH3//PEROVSKITE TYPE HYDRIDE//COMPLEX TRANSITION METAL HYDRIDE
2 1155 COMPLEX HYDRIDES//HYDROGEN STORAGE//HYDROGEN STORAGE MATERIALS
3 5795 METAL HYDRIDES//LANI5//HYDROGEN COMPRESSOR
4 811 HYDROGEN STORAGE ALLOY//METAL HYDRIDE ELECTRODE//NI MH BATTERY
5 20811 BCC ALLOYS//TI CR V ALLOY//CENT RADIOISOTOPE SCI
6 9780 SWITCHABLE MIRROR//RARE EARTH HYDRIDES//YTTRIUM HYDRIDE
7 26487 ALUMINUM HYDRIDE//ALANE//ALH3
8 19973 IONENSTRAHLPHYS MATERIALFOR UNG//MO V SUPERLATTICES//POROUS PALLADIUM BULK
9 29822 CARBOHYDRIDE//DESTRUCTIVE HYDROGENATION//ALKALI METAL BOROHYDRIDES CATALYTIC HYDROLYSIS REACTION ORDER
10 13924 TI ZR NI ALLOY//TI ZR NI//TI ZR NI CU ALLOY

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