Class information for:
Level 1: QUARTZ ENHANCED PHOTOACOUSTIC SPECTROSCOPY//PHOTOACOUSTIC SPECTROSCOPY//LASER PHOTOACOUSTIC SPECTROSCOPY

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
12437 906 21.3 61%


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
10 4 OPTICS//PHYSICS, PARTICLES & FIELDS//PHYSICS, MULTIDISCIPLINARY 1131262
691 3       QUANTUM CASCADE LASER//WAVELENGTH MODULATION SPECTROSCOPY//WAVELENGTH MODULATION 7672
1606 2             QUANTUM CASCADE LASER//WAVELENGTH MODULATION SPECTROSCOPY//WAVELENGTH MODULATION 7103
12437 1                   QUARTZ ENHANCED PHOTOACOUSTIC SPECTROSCOPY//PHOTOACOUSTIC SPECTROSCOPY//LASER PHOTOACOUSTIC SPECTROSCOPY 906

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 QUARTZ ENHANCED PHOTOACOUSTIC SPECTROSCOPY authKW 608319 2% 95% 19
2 PHOTOACOUSTIC SPECTROSCOPY authKW 556132 11% 16% 101
3 LASER PHOTOACOUSTIC SPECTROSCOPY authKW 481830 3% 62% 23
4 QEPAS authKW 272984 1% 90% 9
5 CNR IFN UOS BARI address 224673 1% 67% 10
6 POSTDOCTORAL MOBILE STN POWER ENGN ENGN THERMOP address 210630 1% 63% 10
7 TRACE GAS DETECTION authKW 204227 2% 30% 20
8 QUARTZ TUNING FORK authKW 187149 2% 29% 19
9 RESONANT PHOTOACOUSTIC CELL authKW 173323 1% 86% 6
10 CANTILEVER MICROPHONE authKW 140423 1% 83% 5

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 Optics 7175 37% 0% 338
2 Instruments & Instrumentation 3973 21% 0% 192
3 Physics, Applied 2820 37% 0% 334
4 Spectroscopy 1117 10% 0% 92
5 Chemistry, Analytical 523 12% 0% 105
6 Electrochemistry 293 5% 0% 49
7 Physics, Multidisciplinary 176 8% 0% 73
8 Thermodynamics 158 4% 0% 36
9 Mechanics 55 4% 0% 34
10 Acoustics 52 2% 0% 16

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 CNR IFN UOS BARI 224673 1% 67% 10
2 POSTDOCTORAL MOBILE STN POWER ENGN ENGN THERMOP 210630 1% 63% 10
3 CNR IFN BARI 134808 0% 100% 4
4 LASER SPECT ENVIRONM SENSING 134804 1% 67% 6
5 GRP LASER PHYS 98498 3% 12% 24
6 LASER SPECT SENSING 94121 1% 31% 9
7 DIPARTIMENTO INTERATENEO FIS 77211 3% 8% 27
8 LASERS 56717 3% 7% 24
9 ADV HIGH ENERGY MAT 55730 2% 11% 15
10 CIENCIAS FIS LCFIS 44935 0% 67% 2

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 APPLIED PHYSICS B-LASERS AND OPTICS 45929 11% 1% 101
2 INFRARED PHYSICS & TECHNOLOGY 13303 3% 1% 30
3 INTERNATIONAL JOURNAL OF THERMOPHYSICS 7621 3% 1% 31
4 ROMANIAN REPORTS IN PHYSICS 4503 1% 1% 12
5 INFRARED PHYSICS 3937 1% 1% 11
6 APPLIED OPTICS 3758 7% 0% 63
7 APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY 3061 1% 1% 12
8 REVIEW OF SCIENTIFIC INSTRUMENTS 2729 6% 0% 50
9 APPLIED PHYSICS 1808 0% 1% 4
10 APPLIED SPECTROSCOPY 1781 2% 0% 21

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 QUARTZ ENHANCED PHOTOACOUSTIC SPECTROSCOPY 608319 2% 95% 19 Search QUARTZ+ENHANCED+PHOTOACOUSTIC+SPECTROSCOPY Search QUARTZ+ENHANCED+PHOTOACOUSTIC+SPECTROSCOPY
2 PHOTOACOUSTIC SPECTROSCOPY 556132 11% 16% 101 Search PHOTOACOUSTIC+SPECTROSCOPY Search PHOTOACOUSTIC+SPECTROSCOPY
3 LASER PHOTOACOUSTIC SPECTROSCOPY 481830 3% 62% 23 Search LASER+PHOTOACOUSTIC+SPECTROSCOPY Search LASER+PHOTOACOUSTIC+SPECTROSCOPY
4 QEPAS 272984 1% 90% 9 Search QEPAS Search QEPAS
5 TRACE GAS DETECTION 204227 2% 30% 20 Search TRACE+GAS+DETECTION Search TRACE+GAS+DETECTION
6 QUARTZ TUNING FORK 187149 2% 29% 19 Search QUARTZ+TUNING+FORK Search QUARTZ+TUNING+FORK
7 RESONANT PHOTOACOUSTIC CELL 173323 1% 86% 6 Search RESONANT+PHOTOACOUSTIC+CELL Search RESONANT+PHOTOACOUSTIC+CELL
8 CANTILEVER MICROPHONE 140423 1% 83% 5 Search CANTILEVER+MICROPHONE Search CANTILEVER+MICROPHONE
9 PHOTOACOUSTIC 137502 6% 8% 53 Search PHOTOACOUSTIC Search PHOTOACOUSTIC
10 EXTERNAL ACOUSTIC NOISE ATTENUATION 134808 0% 100% 4 Search EXTERNAL+ACOUSTIC+NOISE+ATTENUATION Search EXTERNAL+ACOUSTIC+NOISE+ATTENUATION

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 LI, JS , CHEN, WD , YU, BL , (2011) RECENT PROGRESS ON INFRARED PHOTOACOUSTIC SPECTROSCOPY TECHNIQUES.APPLIED SPECTROSCOPY REVIEWS. VOL. 46. ISSUE 6. P. 440 -471 127 72% 12
2 ZHENG, HD , DONG, L , MA, Y , WU, HP , LIU, XL , YIN, XK , ZHANG, L , MA, WG , YIN, WB , XIAO, LT , ET AL (2016) SCATTERED LIGHT MODULATION CANCELLATION METHOD FOR SUB-PPB-LEVEL NO2 DETECTION IN A LD-EXCITED QEPAS SYSTEM.OPTICS EXPRESS. VOL. 24. ISSUE 10. P. - 39 93% 3
3 ZOLTAN, B , ANDREA, P , GABOR, S , (2011) PHOTOACOUSTIC INSTRUMENTS FOR PRACTICAL APPLICATIONS: PRESENT, POTENTIALS, AND FUTURE CHALLENGES.APPLIED SPECTROSCOPY REVIEWS. VOL. 46. ISSUE 1. P. 1 -37 59 80% 7
4 PATIMISCO, P , SCAMARCIO, G , TITTEL, FK , SPAGNOLO, V , (2014) QUARTZ-ENHANCED PHOTOACOUSTIC SPECTROSCOPY: A REVIEW.SENSORS. VOL. 14. ISSUE 4. P. 6165-6206 48 65% 47
5 MIKLOS, A , (2015) ACOUSTIC ASPECTS OF PHOTOACOUSTIC SIGNAL GENERATION AND DETECTION IN GASES.INTERNATIONAL JOURNAL OF THERMOPHYSICS. VOL. 36. ISSUE 9. P. 2285 -2317 35 97% 0
6 DUMITRAS, DC , DUTU, DC , MATEI, C , MAGUREANU, AM , PETRUS, M , POPA, C , (2007) LASER PHOTOACOUSTIC SPECTROSCOPY: PRINCIPLES, INSTRUMENTATION, AND CHARACTERIZATION.JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS. VOL. 9. ISSUE 12. P. 3655 -3701 49 75% 23
7 ZHENG, HD , DONG, L , SAMPAOLO, A , PATIMISCO, P , MA, WG , ZHANG, L , YIN, WB , XIAO, LT , SPAGNOLO, V , JIA, ST , ET AL (2016) OVERTONE RESONANCE ENHANCED SINGLE-TUBE ON-BEAM QUARTZ ENHANCED PHOTOACOUSTIC SPECTROPHONE.APPLIED PHYSICS LETTERS. VOL. 109. ISSUE 11. P. - 30 94% 0
8 ZHENG, HD , DONG, L , PATIMISCO, P , WU, HP , SAMPAOLO, A , YIN, XK , LI, SZ , MA, WG , ZHANG, L , YIN, WB , ET AL (2017) DOUBLE ANTINODE EXCITED QUARTZ-ENHANCED PHOTOACOUSTIC SPECTROPHONE.APPLIED PHYSICS LETTERS. VOL. 110. ISSUE 2. P. - 26 96% 0
9 WU, HP , DONG, L , LIU, XL , ZHENG, HD , YIN, XK , MA, WG , ZHANG, L , YIN, WB , JIA, ST , (2015) FIBER-AMPLIFIER-ENHANCED QEPAS SENSOR FOR SIMULTANEOUS TRACE GAS DETECTION OF NH3 AND H2S.SENSORS. VOL. 15. ISSUE 10. P. 26743 -26755 32 80% 0
10 WU, HP , DONG, L , ZHENG, HD , LIU, XL , YIN, XK , MA, WG , ZHANG, L , YIN, WB , JIA, ST , TITTEL, FK , (2015) ENHANCED NEAR-INFRARED QEPAS SENSOR FOR SUB-PPM LEVEL H2S DETECTION BY MEANS OF A FIBER AMPLIFIED 1582 NM DFB LASER.SENSORS AND ACTUATORS B-CHEMICAL. VOL. 221. ISSUE . P. 666 -672 31 78% 2

Classes with closest relation at Level 1


Rank Class id link
1 3200 WAVELENGTH MODULATION SPECTROSCOPY//TUNABLE DIODE LASER ABSORPTION SPECTROSCOPY//HIGH TEMP GASDYNAM
2 18042 CO2 SOLUBILIZATION//PHOTOACOUSTIC CALORIMETRY//PHOTOACOUSTIC
3 10998 CAVITY RING DOWN//CAVITY RING DOWN SPECTROSCOPY//CAVITY ENHANCED ABSORPTION SPECTROSCOPY
4 13964 PHOTOACOUSTIC SPECTROSCOPY//PHOTOACOUSTIC PHASE//CO FLUORESCENCE EFFECT
5 29019 SURGICAL SMOKE//SMOKE EVACUATION//SURGICAL PLUME
6 1408 QUANTUM CASCADE LASER//QUANTUM CASCADE LASERS QCLS//MICRO NANOSTRUCT
7 32466 CALORIMETER CALIBRATION//CNRS UP A 1434//COLUMN ABUNDANCE
8 18412 ECTDL//JOURNAL OF MOLECULAR SPECTROSCOPY//SEMICLASSICAL CALCULATIONS
9 4276 THERMAL EFFUSIVITY//PHOTOPYROELECTRIC TECHNIQUE//THERMAL DIFFUSIVITY
10 3995 OPTICAL PARAMETRIC OSCILLATOR//DIFFERENCE FREQUENCY GENERATION//INTRACAVITY OPTICAL PARAMETRIC OSCILLATOR

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