Class information for:
Level 1: BIOHYDROGEN//DARK FERMENTATION//BIOHYDROGEN PRODUCTION

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
828 3030 37.2 79%


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
4 4 ENVIRONMENTAL SCIENCES//GEOSCIENCES, MULTIDISCIPLINARY//METEOROLOGY & ATMOSPHERIC SCIENCES 1766162
50 3       ANAEROBIC DIGESTION//MICROBIAL FUEL CELL//WATER SCIENCE AND TECHNOLOGY 91931
394 2             ANAEROBIC DIGESTION//BIOHYDROGEN//BIOGAS 16833
828 1                   BIOHYDROGEN//DARK FERMENTATION//BIOHYDROGEN PRODUCTION 3030

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 BIOHYDROGEN authKW 5724143 25% 75% 762
2 DARK FERMENTATION authKW 3046060 11% 91% 334
3 BIOHYDROGEN PRODUCTION authKW 1613609 6% 83% 194
4 PHOTOFERMENTATION authKW 1321711 4% 96% 136
5 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY journal 767100 40% 6% 1220
6 BIOLOGICAL HYDROGEN PRODUCTION authKW 611934 2% 86% 71
7 FERMENTATIVE HYDROGEN PRODUCTION authKW 546688 2% 94% 58
8 HYDROGEN FERMENTATION authKW 447992 2% 91% 49
9 HYDROGEN PRODUCTION authKW 439763 14% 10% 430
10 GREEN ENERGY DEV address 328215 2% 63% 52

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 Energy & Fuels 116647 62% 1% 1886
2 Electrochemistry 71232 41% 1% 1240
3 Agricultural Engineering 33804 14% 1% 413
4 Biotechnology & Applied Microbiology 18490 33% 0% 1014
5 Chemistry, Physical 11121 41% 0% 1240
6 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 3158 4% 0% 133
7 Engineering, Environmental 2026 7% 0% 213
8 Environmental Sciences 755 9% 0% 284
9 Engineering, Chemical 697 8% 0% 233
10 Water Resources 281 3% 0% 98

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 GREEN ENERGY DEV 328215 2% 63% 52
2 BIOHYDROGEN 231744 1% 100% 23
3 GRP DEV MICROBIAL HYDROGEN PROD PROC BIOMASS 175227 1% 87% 20
4 WASTES ENERGY 163225 1% 90% 18
5 MASTERS PROGRAM GREEN ENERGY SCI TECHNOL 152711 1% 63% 24
6 MASTER PROGRAM GREEN ENERGY SCI TECHNOL 125943 0% 83% 15
7 UNIDAD JURIQUILLA 88424 1% 34% 26
8 BIOENGN MEMBRANE TECHNOL ENERGET 83180 1% 49% 17
9 ADV PROC WATER TREATMENT 76170 1% 34% 22
10 BIOENGN ENVIRONM 57198 1% 20% 28

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 767100 40% 6% 1220
2 BIORESOURCE TECHNOLOGY 78286 12% 2% 366
3 BIOTECHNOLOGY FOR BIOFUELS 3940 1% 2% 21
4 BIOMASS & BIOENERGY 3457 1% 1% 40
5 APPLIED MICROBIOLOGY AND BIOTECHNOLOGY 2874 2% 0% 64
6 RENEWABLE ENERGY 2792 2% 1% 48
7 BIOTECHNOLOGY AND BIOENGINEERING 2704 2% 0% 57
8 INTERNATIONAL JOURNAL OF GREEN ENERGY 1959 0% 2% 13
9 BIOTECHNOLOGY LETTERS 1831 1% 0% 42
10 JOURNAL OF BIOSCIENCE AND BIOENGINEERING 1752 1% 1% 27

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 BIOHYDROGEN 5724143 25% 75% 762 Search BIOHYDROGEN Search BIOHYDROGEN
2 DARK FERMENTATION 3046060 11% 91% 334 Search DARK+FERMENTATION Search DARK+FERMENTATION
3 BIOHYDROGEN PRODUCTION 1613609 6% 83% 194 Search BIOHYDROGEN+PRODUCTION Search BIOHYDROGEN+PRODUCTION
4 PHOTOFERMENTATION 1321711 4% 96% 136 Search PHOTOFERMENTATION Search PHOTOFERMENTATION
5 BIOLOGICAL HYDROGEN PRODUCTION 611934 2% 86% 71 Search BIOLOGICAL+HYDROGEN+PRODUCTION Search BIOLOGICAL+HYDROGEN+PRODUCTION
6 FERMENTATIVE HYDROGEN PRODUCTION 546688 2% 94% 58 Search FERMENTATIVE+HYDROGEN+PRODUCTION Search FERMENTATIVE+HYDROGEN+PRODUCTION
7 HYDROGEN FERMENTATION 447992 2% 91% 49 Search HYDROGEN+FERMENTATION Search HYDROGEN+FERMENTATION
8 HYDROGEN PRODUCTION 439763 14% 10% 430 Search HYDROGEN+PRODUCTION Search HYDROGEN+PRODUCTION
9 HYDROGEN YIELD 286562 2% 59% 48 Search HYDROGEN+YIELD Search HYDROGEN+YIELD
10 ANAEROBIC FERMENTATION 258399 3% 29% 87 Search ANAEROBIC+FERMENTATION Search ANAEROBIC+FERMENTATION

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.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 GHIMIRE, A , FRUNZO, L , PIROZZI, F , TRABLY, E , ESCUDIE, R , LENS, PNL , ESPOSITO, G , (2015) A REVIEW ON DARK FERMENTATIVE BIOHYDROGEN PRODUCTION FROM ORGANIC BIOMASS: PROCESS PARAMETERS AND USE OF BY-PRODUCTS.APPLIED ENERGY. VOL. 144. ISSUE . P. 73 -95 176 78% 49
2 PATEL, SKS , KUMAR, P , KALIA, VC , (2012) ENHANCING BIOLOGICAL HYDROGEN PRODUCTION THROUGH COMPLEMENTARY MICROBIAL METABOLISMS.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. VOL. 37. ISSUE 14. P. 10590 -10603 172 92% 15
3 WANG, JL , WAN, W , (2009) FACTORS INFLUENCING FERMENTATIVE HYDROGEN PRODUCTION: A REVIEW.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. VOL. 34. ISSUE 2. P. 799 -811 110 98% 314
4 RITTMANN, S , HERWIG, C , (2012) A COMPREHENSIVE AND QUANTITATIVE REVIEW OF DARK FERMENTATIVE BIOHYDROGEN PRODUCTION.MICROBIAL CELL FACTORIES. VOL. 11. ISSUE . P. - 202 58% 40
5 KARGI, F , KAPDAN, IK , (2006) BIO-HYDROGEN PRODUCTION FROM WASTE MATERIALS.ENZYME AND MICROBIAL TECHNOLOGY. VOL. 38. ISSUE 5. P. 569 -582 95 82% 621
6 KUMAR, G , BAKONYI, P , PERIYASAMY, S , KIM, SH , NEMESTOTHY, N , BELAFI-BAKO, K , (2015) LIGNOCELLULOSE BIOHYDROGEN: PRACTICAL CHALLENGES AND RECENT PROGRESS.RENEWABLE & SUSTAINABLE ENERGY REVIEWS. VOL. 44. ISSUE . P. 728 -737 88 77% 48
7 SIVAGURUNATHAN, P , KUMAR, G , BAKONYI, P , KIM, SH , KOBAYASHI, T , XU, KQ , LAKNER, G , TOTH, G , NEMESTOTHY, N , BELAFI-BAKO, K , (2016) A CRITICAL REVIEW ON ISSUES AND OVERCOMING STRATEGIES FOR THE ENHANCEMENT OF DARK FERMENTATIVE HYDROGEN PRODUCTION IN CONTINUOUS SYSTEMS.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. VOL. 41. ISSUE 6. P. 3820 -3836 78 96% 7
8 SHOW, KY , LEE, DJ , TAY, JH , LIN, CY , CHANG, JS , (2012) BIOHYDROGEN PRODUCTION: CURRENT PERSPECTIVES AND THE WAY FORWARD.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. VOL. 37. ISSUE 20. P. 15616 -15631 115 83% 59
9 ARGUN, H , KARGI, F , (2011) BIO-HYDROGEN PRODUCTION BY DIFFERENT OPERATIONAL MODES OF DARK AND PHOTO-FERMENTATION: AN OVERVIEW.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. VOL. 36. ISSUE 13. P. 7443 -7459 101 93% 91
10 AZWAR, MY , HUSSAIN, MA , ABDUL-WAHAB, AK , (2014) DEVELOPMENT OF BIOHYDROGEN PRODUCTION BY PHOTOBIOLOGICAL, FERMENTATION AND ELECTROCHEMICAL PROCESSES: A REVIEW.RENEWABLE & SUSTAINABLE ENERGY REVIEWS. VOL. 31. ISSUE . P. 158 -173 115 71% 47

Classes with closest relation at Level 1


Rank Class id link
1 12383 SULFUR DEPRIVATION//BIDIRECTIONAL HYDROGENASE//CHLAMYDOMONAS REINHARDTII
2 30112 CARBOXYLATE PLATFORM//MIXALCO PROCESS//MIXALCO TM PROCESS
3 267 ANAEROBIC DIGESTION//CO DIGESTION//BIOGAS
4 6230 SYNTROPHIC ACETATE OXIDATION//ANAEROBIC DIGESTION//INTERSPECIES HYDROGEN TRANSFER
5 14048 BACTERIAL DISCOVERY//AEROBIC ANOXYGENIC PHOTOTROPHIC BACTERIA//AEROBIC PHOTOSYNTHETIC BACTERIA
6 5139 CELLULOSOME//CLOSTRIDIUM THERMOCELLUM//DOCKERIN
7 3966 HYDROGENASE//NIFE HYDROGENASE//BIOL MIKROBIOL
8 18915 PICHIA ANGOPHORAE//ANAEROBIC DIGESTION//GELIDIUM AMANSII
9 33849 COMPOSITE MICROBIAL SYSTEM//BIOMASS ENGN//80211 WLANS
10 27781 PALM OIL MILL EFFLUENT POME//PALM OIL MILL EFFLUENT//POME

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