Class information for:
Level 1: CHEMICAL OXYGEN DEMAND//CHEMICAL OXYGEN DEMAND COD//COD DETERMINATION

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
18 4 CHEMISTRY, ANALYTICAL//TOXICOLOGY//ENVIRONMENTAL SCIENCES 697102
347 3       CHEMISTRY, ANALYTICAL//PRECONCENTRATION//PVC MEMBRANE 36737
1679 2             NITRITE//NITRITE DETERMINATION//ANALYTICA CHIMICA ACTA 7100
20426 1                   CHEMICAL OXYGEN DEMAND//CHEMICAL OXYGEN DEMAND COD//COD DETERMINATION 484

Terms with highest relevance score



rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 CHEMICAL OXYGEN DEMAND authKW 572986 15% 12% 72
2 CHEMICAL OXYGEN DEMAND COD authKW 389884 7% 19% 32
3 COD DETERMINATION authKW 271316 1% 83% 5
4 GENIE ENVIRONM IND address 173877 5% 11% 25
5 UV SPECTROPHOTOMETRY authKW 140777 5% 9% 25
6 CHLORIDE INTERFERENCE authKW 138716 1% 30% 7
7 CHEMICAL OXYGEN DEMAND DETERMINATION authKW 130233 0% 100% 2
8 EDTA PHOTOOXIDATION authKW 130233 0% 100% 2
9 ELECTROCHEMICAL OXYGEN DEMAND authKW 130233 0% 100% 2
10 GRP CIENCIA INGN AGUA AMBIENTE address 130233 0% 100% 2

Web of Science journal categories



chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Chemistry, Analytical 4319 41% 0% 197
2 Water Resources 2748 21% 0% 100
3 Engineering, Environmental 2015 17% 0% 81
4 Environmental Sciences 1822 31% 0% 148
5 Spectroscopy 549 10% 0% 47
6 Electrochemistry 394 8% 0% 40
7 Instruments & Instrumentation 341 9% 0% 44
8 Limnology 183 2% 0% 12
9 Chemistry, Multidisciplinary 14 7% 0% 33
10 Engineering, Petroleum 13 1% 0% 3

Address terms



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 GENIE ENVIRONM IND 173877 5% 11% 25
2 GRP CIENCIA INGN AGUA AMBIENTE 130233 0% 100% 2
3 SERV C12 130233 0% 100% 2
4 OBSERV ENVIRONM DEV DURABLE 117207 1% 60% 3
5 O ING C QUIM 86820 0% 67% 2
6 AGR WATER ENGN 65116 0% 100% 1
7 CHIM INGN ENVIRONM 65116 0% 100% 1
8 DGXIIC 65116 0% 100% 1
9 DIRECT EXPERTISES ETUD 65116 0% 100% 1
10 ENTES 65116 0% 100% 1

Journals



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 WATER SCIENCE AND TECHNOLOGY 6359 9% 0% 45
2 INTERNATIONAL GAS ENGINEERING AND MANAGEMENT 4339 0% 7% 1
3 JOURNAL OF AUTOMATED METHODS & MANAGEMENT IN CHEMISTRY 4036 1% 2% 3
4 SPECTROSCOPY AND SPECTRAL ANALYSIS 3230 5% 0% 23
5 ZEITSCHRIFT FUR WASSER UND ABWASSER FORSCHUNG-JOURNAL FOR WATER AND WASTEWATER RESEARCH 3093 1% 1% 4
6 ANALYTICA CHIMICA ACTA 2685 7% 0% 32
7 INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY 1575 2% 0% 9
8 ENVIRONMENTAL TECHNOLOGY 1525 2% 0% 11
9 JOURNAL OF AUTOMATIC CHEMISTRY 1489 1% 1% 3
10 TALANTA 1478 4% 0% 20

Author Key Words



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 CHEMICAL OXYGEN DEMAND 572986 15% 12% 72 Search CHEMICAL+OXYGEN+DEMAND Search CHEMICAL+OXYGEN+DEMAND
2 CHEMICAL OXYGEN DEMAND COD 389884 7% 19% 32 Search CHEMICAL+OXYGEN+DEMAND+COD Search CHEMICAL+OXYGEN+DEMAND+COD
3 COD DETERMINATION 271316 1% 83% 5 Search COD+DETERMINATION Search COD+DETERMINATION
4 UV SPECTROPHOTOMETRY 140777 5% 9% 25 Search UV+SPECTROPHOTOMETRY Search UV+SPECTROPHOTOMETRY
5 CHLORIDE INTERFERENCE 138716 1% 30% 7 Search CHLORIDE+INTERFERENCE Search CHLORIDE+INTERFERENCE
6 CHEMICAL OXYGEN DEMAND DETERMINATION 130233 0% 100% 2 Search CHEMICAL+OXYGEN+DEMAND+DETERMINATION Search CHEMICAL+OXYGEN+DEMAND+DETERMINATION
7 EDTA PHOTOOXIDATION 130233 0% 100% 2 Search EDTA+PHOTOOXIDATION Search EDTA+PHOTOOXIDATION
8 ELECTROCHEMICAL OXYGEN DEMAND 130233 0% 100% 2 Search ELECTROCHEMICAL+OXYGEN+DEMAND Search ELECTROCHEMICAL+OXYGEN+DEMAND
9 MEASURING CHANNEL 130233 0% 100% 2 Search MEASURING+CHANNEL Search MEASURING+CHANNEL
10 TI TIO2 PBO2 ELECTRODE 130233 0% 100% 2 Search TI+TIO2+PBO2+ELECTRODE Search TI+TIO2+PBO2+ELECTRODE

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 19019 PHOTOELECTROCATALYSIS//PHOTOCATALYTIC FUEL CELL//PHOTOFUEL CELL
2 14634 BOD SENSOR//BOD BIOSENSOR//MICROBIAL SENSOR
3 27248 SALINE WASTEWATER//HYPERSALINE WASTEWATER//MUSTARD TUBER WASTEWATER
4 11935 SEWER SEDIMENTS//COMBINED SEWER OVERFLOW//COMBINED SEWER
5 32750 ANTHROPOGENIC PHOSPHATE SOURCES//BACILLUS THURINGIENSIS VAR ISRAELIENSIS//CHLORPHOXIM
6 2273 DISSOLVED ORGANIC MATTER//CDOM//CHROMOPHORIC DISSOLVED ORGANIC MATTER
7 11411 PHOSPHATE DETERMINATION//PHOSPHOMOLYBDENUM BLUE//SILICATE INTERFERENCE
8 20727 PIECEWISE CONTINUOUS SYSTEMS//ANAEROBIC DIGESTION//AUTOMAT IND IT
9 1567 ACTIVATED SLUDGE//ACTIVATED SLUDGE MODEL//WATER SCIENCE AND TECHNOLOGY
10 24120 VOM WASSER//AG AGIO3 ELECTRODE METHOD//ANTIMONY ELECTRODE METHOD

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