Class information for: |
Basic class information |
| ID | Publications | Average number of references |
Avg. shr. active ref. in WoS |
|---|---|---|---|
| 12477 | 840 | 14.6 | 35% |
Classes in level above (level 2) |
| ID, lev. above |
Publications | Label for level above |
|---|---|---|
| 2534 | 3313 | ASTEC VACUUM SCI GRP//SPINNING ROTOR GAUGE//TURBOMOLECULAR PUMP |
Terms with highest relevance score |
| Rank | Term | Type of term | Relevance score (tfidf) |
Class's shr. of term's tot. occurrences |
Shr. of publ. in class containing term |
Num. of publ. in class |
|---|---|---|---|---|---|---|
| 1 | VACUUM METROLOGY | Author keyword | 13 | 80% | 1% | 8 |
| 2 | SPINNING ROTOR GAUGE | Author keyword | 13 | 71% | 1% | 10 |
| 3 | IONIZATION GAUGE | Author keyword | 8 | 60% | 1% | 9 |
| 4 | STANDARD LEAK | Author keyword | 8 | 100% | 1% | 5 |
| 5 | DIAPHRAGM GAUGE | Author keyword | 6 | 80% | 0% | 4 |
| 6 | STATIC EXPANSION | Author keyword | 6 | 80% | 0% | 4 |
| 7 | VACUUM STANDARD | Author keyword | 6 | 100% | 0% | 4 |
| 8 | VACUUM GAUGE | Author keyword | 3 | 32% | 1% | 9 |
| 9 | COLD CATHODE IONISATION GAUGE | Author keyword | 3 | 100% | 0% | 3 |
| 10 | HIGH VACUUM STANDARD | Author keyword | 3 | 100% | 0% | 3 |
Web of Science journal categories |
Author Key Words |
| Rank | Web of Science journal category | Relevance score (tfidf) |
Class's shr. of term's tot. occurrences |
Shr. of publ. in class containing term |
Num. of publ. in class |
LCSH search | Wikipedia search |
|---|---|---|---|---|---|---|---|
| 1 | VACUUM METROLOGY | 13 | 80% | 1% | 8 | Search VACUUM+METROLOGY | Search VACUUM+METROLOGY |
| 2 | SPINNING ROTOR GAUGE | 13 | 71% | 1% | 10 | Search SPINNING+ROTOR+GAUGE | Search SPINNING+ROTOR+GAUGE |
| 3 | IONIZATION GAUGE | 8 | 60% | 1% | 9 | Search IONIZATION+GAUGE | Search IONIZATION+GAUGE |
| 4 | STANDARD LEAK | 8 | 100% | 1% | 5 | Search STANDARD+LEAK | Search STANDARD+LEAK |
| 5 | DIAPHRAGM GAUGE | 6 | 80% | 0% | 4 | Search DIAPHRAGM+GAUGE | Search DIAPHRAGM+GAUGE |
| 6 | STATIC EXPANSION | 6 | 80% | 0% | 4 | Search STATIC+EXPANSION | Search STATIC+EXPANSION |
| 7 | VACUUM STANDARD | 6 | 100% | 0% | 4 | Search VACUUM+STANDARD | Search VACUUM+STANDARD |
| 8 | VACUUM GAUGE | 3 | 32% | 1% | 9 | Search VACUUM+GAUGE | Search VACUUM+GAUGE |
| 9 | COLD CATHODE IONISATION GAUGE | 3 | 100% | 0% | 3 | Search COLD+CATHODE+IONISATION+GAUGE | Search COLD+CATHODE+IONISATION+GAUGE |
| 10 | HIGH VACUUM STANDARD | 3 | 100% | 0% | 3 | Search HIGH+VACUUM+STANDARD | Search HIGH+VACUUM+STANDARD |
Key Words Plus |
| Rank | Web of Science journal category | Relevance score (tfidf) |
Class's shr. of term's tot. occurrences |
Shr. of publ. in class containing term |
Num. of publ. in class |
|---|---|---|---|---|---|
| 1 | IONIZATION GAUGE | 15 | 62% | 2% | 16 |
| 2 | IONIZATION GAUGES | 13 | 80% | 1% | 8 |
| 3 | RESIDUAL GAS ANALYZER | 10 | 73% | 1% | 8 |
| 4 | CATHODE IONIZATION GAUGES | 8 | 70% | 1% | 7 |
| 5 | CATHODE IONIZATION GAUGE | 6 | 71% | 1% | 5 |
| 6 | BAYARD ALPERT GAUGE | 6 | 100% | 0% | 4 |
| 7 | GAS FLOWMETER | 6 | 100% | 0% | 4 |
| 8 | HIGH VACUUM STANDARD | 6 | 100% | 0% | 4 |
| 9 | VACUUM STANDARD | 6 | 100% | 0% | 4 |
| 10 | VACUUM STANDARDS | 6 | 100% | 0% | 4 |
Journals |
| Rank | Web of Science journal category | Relevance score (tfidf) |
Class's shr. of term's tot. occurrences |
Shr. of publ. in class containing term |
Num. of publ. in class |
|---|---|---|---|---|---|
| 1 | VAKUUM-TECHNIK | 3 | 14% | 2% | 19 |
Reviews |
| Title | Publ. year | Cit. | Active references |
% act. ref. to same field |
|---|---|---|---|---|
| RECOMMENDED PRACTICES FOR THE CALIBRATION AND USE OF LEAKS | 1992 | 54 | 12 | 100% |
| HISTORY OF ULTRAHIGH-VACUUM PRESSURE MEASUREMENTS | 1994 | 7 | 17 | 88% |
| A survey of the principles for primary standards for atmospheric halogenated-hydrocarbon-leaks | 2015 | 0 | 23 | 65% |
| Primary Vacuum Standard for UHV Range - Standing Experience and Present Problems | 2009 | 0 | 24 | 71% |
| AFFORESTATION FOR SAND FIXATION IN CHINA | 1989 | 1 | 1 | 100% |
| MULTIPLE-BEAM CATHODE-RAY TUBE DESIGN OVERVIEW | 1986 | 0 | 2 | 100% |
| AUTOMATIC INSTALLATIONS FOR LEAK DETECTION | 1984 | 0 | 1 | 100% |
| STATE OF THE ART AND TRENDS OF TOTAL PRESSURE MEASUREMENT IN VACUUM TECHNOLOGY | 1985 | 1 | 8 | 63% |
| CRYOGENIC VACUUM TECHNIQUES | 1981 | 6 | 2 | 100% |
Address terms |
| Rank | Address term | Relevance score (tfidf) |
Class's shr. of term's tot. occurrences |
Shr. of publ. in class containing term |
Num. of publ. in class |
|---|---|---|---|---|---|
| 1 | VACUUM SCI TECHNOL | 2 | 29% | 0.6% | 5 |
| 2 | ABT VAKUUMPHYS | 1 | 100% | 0.2% | 2 |
| 3 | P SURE VACUUM GRP | 1 | 100% | 0.2% | 2 |
| 4 | TELEVAC | 1 | 100% | 0.2% | 2 |
| 5 | UHV GRP | 1 | 100% | 0.2% | 2 |
| 6 | VACUUM SCI TECHNOL NINVAST | 1 | 100% | 0.2% | 2 |
| 7 | IMGC | 1 | 17% | 0.6% | 5 |
| 8 | VACUUM TECHNOL | 1 | 10% | 1.0% | 8 |
| 9 | ABT VAKUUMPHYS TECH | 1 | 50% | 0.1% | 1 |
| 10 | BASIC STAND TEMP P SURE | 1 | 50% | 0.1% | 1 |
Related classes at same level (level 1) |
| Rank | Relatedness score | Related classes |
|---|---|---|
| 1 | 0.0000238861 | ASTEC VACUUM SCI GRP//NEG//TIZRV |
| 2 | 0.0000183799 | PRESSURE METROLOGY//PISTON GAUGE//SECT ACOUSTOELECT |
| 3 | 0.0000177986 | EFFUSION MOLECULAR BEAM//MAXWELLIAN DISTRIBUTION FUNCTION//EBARA CORP |
| 4 | 0.0000096099 | TURBOMOLECULAR PUMP//DRY SCROLL VACUUM PUMP//TURBOMOLECULAR PUMP TMP |
| 5 | 0.0000056774 | AUTOMAT METROL//KATEDRA AUTOMAT METROL//MST 10 GRP |
| 6 | 0.0000054801 | BENTHOLOGY//CHIEF OF STATE//GOVERNMENTAL DATA |
| 7 | 0.0000053784 | FUSION NUCLEAR TECHNOLOGY//ITER SHIELDING BLANKET//FUTURE ENERGY |
| 8 | 0.0000041053 | COOLIDGE PROCESS//HERMITAGE MUSEUM//LIMERICK |
| 9 | 0.0000039840 | NANOMAT CHARACTERIZAT SCI PROC TECHNOL//AG CUINSE2//C T NANOMAT CHARACTERIZAT SCI PROC TECHNO |
| 10 | 0.0000033445 | POROUS POLYSILICON//BALLISTIC EMISSION//SENSOR ACTUATOR SYST ISAS |