Class information for:
Level 1: PIPELINE INSPECTION GAUGE PIG//PIPELINE PIGGING//PIGGING

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
32779 134 19.4 21%


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 THERMODYNAMICS//ENERGY & FUELS//ENGINEERING, CHEMICAL 531182
122 3       THERMODYNAMICS//INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER//MECHANICS 68088
756 2             FLOW BOILING//POOL BOILING//CRITICAL HEAT FLUX 12400
32779 1                   PIPELINE INSPECTION GAUGE PIG//PIPELINE PIGGING//PIGGING 134

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 PIPELINE INSPECTION GAUGE PIG authKW 729206 3% 80% 4
2 PIPELINE PIGGING authKW 683632 2% 100% 3
3 PIGGING authKW 656815 5% 41% 7
4 BI DIRECTIONAL PIG authKW 455755 1% 100% 2
5 BOILING MAP authKW 455755 1% 100% 2
6 BOILING SUPPRESSION authKW 455755 1% 100% 2
7 INTELLIGENT EQUIPMENT OIL GAS PIPELINE address 455755 1% 100% 2
8 STEAMING RATE authKW 455755 1% 100% 2
9 GEOMETRY PIG authKW 303835 1% 67% 2
10 KOGAS address 303835 1% 67% 2

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 Nuclear Science & Technology 4044 51% 0% 68
2 Engineering, Petroleum 2104 13% 0% 17
3 Energy & Fuels 394 18% 0% 24
4 Engineering, Mechanical 210 13% 0% 18
5 Engineering, Chemical 117 13% 0% 18
6 Engineering, Marine 91 1% 0% 2
7 Materials Science, Characterization, Testing 69 3% 0% 4
8 Thermodynamics 60 6% 0% 8
9 Engineering, Ocean 39 1% 0% 2
10 Mechanics 37 7% 0% 9

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 INTELLIGENT EQUIPMENT OIL GAS PIPELINE 455755 1% 100% 2
2 KOGAS 303835 1% 67% 2
3 ARIZONA PUBL SERV 227877 1% 100% 1
4 POWER GENERAT KWU NAT 227877 1% 100% 1
5 SEPROT 227877 1% 100% 1
6 MECH TRANSPORTAT ENGN 121447 8% 5% 11
7 MMSS GRP 113938 1% 50% 1
8 MULTIPHASE FLOW PETR ENGN 113938 1% 50% 1
9 PIPELINE PROGRAM 113938 1% 50% 1
10 CENEPES 75958 1% 33% 1

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 NUCLEAR TECHNOLOGY 29186 18% 1% 24
2 KERNENERGIE 27991 7% 1% 9
3 JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 11769 7% 1% 10
4 KERNTECHNIK 8716 5% 1% 7
5 KSME INTERNATIONAL JOURNAL 8190 5% 1% 7
6 SOVIET ATOMIC ENERGY 6069 3% 1% 4
7 ATOMKERNENERGIE-KERNTECHNIK 4154 2% 1% 3
8 NUCLEAR ENGINEERING AND DESIGN 2441 7% 0% 10
9 NUCLEAR SAFETY 2136 1% 0% 2
10 JOURNAL OF PIPELINES 2128 1% 1% 1

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 PIPELINE INSPECTION GAUGE PIG 729206 3% 80% 4 Search PIPELINE+INSPECTION+GAUGE+PIG Search PIPELINE+INSPECTION+GAUGE+PIG
2 PIPELINE PIGGING 683632 2% 100% 3 Search PIPELINE+PIGGING Search PIPELINE+PIGGING
3 PIGGING 656815 5% 41% 7 Search PIGGING Search PIGGING
4 BI DIRECTIONAL PIG 455755 1% 100% 2 Search BI+DIRECTIONAL+PIG Search BI+DIRECTIONAL+PIG
5 BOILING MAP 455755 1% 100% 2 Search BOILING+MAP Search BOILING+MAP
6 BOILING SUPPRESSION 455755 1% 100% 2 Search BOILING+SUPPRESSION Search BOILING+SUPPRESSION
7 STEAMING RATE 455755 1% 100% 2 Search STEAMING+RATE Search STEAMING+RATE
8 GEOMETRY PIG 303835 1% 67% 2 Search GEOMETRY+PIG Search GEOMETRY+PIG
9 2 DIMENSIONAL HEAT CONDUCTION 227877 1% 100% 1 Search 2+DIMENSIONAL+HEAT+CONDUCTION Search 2+DIMENSIONAL+HEAT+CONDUCTION
10 2 PHASE FLOW COMPUTATION 227877 1% 100% 1 Search 2+PHASE+FLOW+COMPUTATION Search 2+PHASE+FLOW+COMPUTATION

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 ZHANG, H , ZHANG, SM , LIU, SH , WANG, Y , (2017) COLLISIONAL VIBRATION OF PIGS (PIPELINE INSPECTION GAUGES) PASSING THROUGH GIRTH WELDS IN PIPELINES.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING. VOL. 37. ISSUE . P. 15 -28 10 100% 0
2 ZHU, XX , ZHANG, SM , LI, XL , WANG, DG , YU, D , (2015) NUMERICAL SIMULATION OF CONTACT FORCE ON BI-DIRECTIONAL PIG IN GAS PIPELINE: AT THE EARLY STAGE OF PIGGING.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING. VOL. 23. ISSUE . P. 127 -138 9 100% 1
3 ZHU, XX , ZHANG, SM , TAN, GB , WANG, DG , WANG, WM , (2014) EXPERIMENTAL STUDY ON DYNAMICS OF ROTATABLE BYPASS-VALVE IN SPEED CONTROL PIG IN GAS PIPELINE.MEASUREMENT. VOL. 47. ISSUE . P. 686-692 8 100% 2
4 LI, XL , ZHANG, SM , LIU, SH , JIAO, Q , DAI, LS , (2015) AN EXPERIMENTAL EVALUATION OF THE PROBE DYNAMICS AS A PROBE PIG INSPECTS INTERNAL CONVEX DEFECTS IN OIL AND GAS PIPELINES.MEASUREMENT. VOL. 63. ISSUE . P. 49 -60 11 65% 1
5 ZHU, XX , WANG, DG , YEUNG, H , ZHANG, SM , LIU, SH , (2015) COMPARISON OF LINEAR AND NONLINEAR SIMULATIONS OF BIDIRECTIONAL PIG CONTACT FORCES IN GAS PIPELINES.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING. VOL. 27. ISSUE . P. 151 -157 9 75% 1
6 ZHU, XX , LI, XL , ZHAO, CH , ZHANG, SM , LIU, SH , (2016) DYNAMIC SIMULATION AND EXPERIMENTAL RESEARCH ON THE MOTION OF ODOMETER PASSING OVER THE WELD.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING. VOL. 30. ISSUE . P. 205 -212 7 88% 0
7 MIRSHAMSI, M , RAFEEYAN, M , (2015) DYNAMIC ANALYSIS AND SIMULATION OF LONG PIG IN GAS PIPELINE.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING. VOL. 23. ISSUE . P. 294 -303 7 88% 1
8 MIRSHAMSI, M , RAFEEYAN, M , (2015) DYNAMIC ANALYSIS OF PIG THROUGH TWO AND THREE DIMENSIONAL GAS PIPELINE.JOURNAL OF APPLIED FLUID MECHANICS. VOL. 8. ISSUE 1. P. 43 -54 6 86% 3
9 MIRSHAMSI, M , RAFEEYAN, M , (2012) SPEED CONTROL OF PIPELINE PIG USING THE QFT METHOD.OIL & GAS SCIENCE AND TECHNOLOGY-REVUE D IFP ENERGIES NOUVELLES. VOL. 67. ISSUE 4. P. 693-701 6 75% 4
10 DAVOUDI, M , HEIDARI, Y , MANSOORI, SAA , (2014) FIELD EXPERIENCE AND EVALUATION OF THE SOUTH PARS SEA LINE PIGGING, BASED ON DYNAMIC SIMULATIONS.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING. VOL. 18. ISSUE . P. 210-218 5 83% 4

Classes with closest relation at Level 1


Rank Class id link
1 21087 ISOVISCOUS ELASTIC//SOFT TRIBOLOGY//MKT SENSORY SCI
2 37181 ANTHROPOGENIC EARTHQUAKE//BURIED METAL PIPELINE//CHARGEABILITY RESISTIVITY
3 36186 AXIAL OFFSET ANOMALY//NEUTRON BEAM DIVERGENCE//PIPING VIBRATIONS
4 17294 MAGNETIC FLUX LEAKAGE//MAGNETIC FLUX LEAKAGE MFL//MFL
5 4697 SLUG FLOW//INTERNATIONAL JOURNAL OF MULTIPHASE FLOW//OIL WATER FLOW
6 8686 POUR POINT DEPRESSANT//WAXY CRUDE OIL//WAX DEPOSITION
7 22666 COUNTERCURRENT FLOW LIMITATION//CCFL//PWR HOT LEG
8 15508 ANNULAR FLOW//DISTURBANCE WAVES//BOILING TRANSITION
9 17234 INFRASTRUCT PERFORMANCE RELIABIL//CORROSION DEFECTS//FAILURE PRESSURE
10 30135 HORIZONTAL DIRECTIONAL DRILLING//PULL LOAD//TRENCHLESS TECHNOLOGY

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