Class information for:
Level 1: PIEZOELECTRIC TRANSFORMER//PIEZOELECTRIC TRANSFORMER PT//NONLINEAR PIEZOELECTRIC COEFFICIENT

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
16848 632 15.8 49%


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
2 4 MATERIALS SCIENCE, MULTIDISCIPLINARY//PHYSICS, APPLIED//PHYSICS, CONDENSED MATTER 2836879
376 3       SENSORS AND ACTUATORS A-PHYSICAL//JOURNAL OF MICROELECTROMECHANICAL SYSTEMS//MEMS 32422
729 2             ENERGY HARVESTING//ULTRASONIC MOTOR//PIEZOELECTRIC ACTUATOR 12629
16848 1                   PIEZOELECTRIC TRANSFORMER//PIEZOELECTRIC TRANSFORMER PT//NONLINEAR PIEZOELECTRIC COEFFICIENT 632

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 PIEZOELECTRIC TRANSFORMER authKW 3417903 15% 73% 97
2 PIEZOELECTRIC TRANSFORMER PT authKW 690191 3% 71% 20
3 NONLINEAR PIEZOELECTRIC COEFFICIENT authKW 483142 2% 100% 10
4 HIGH POWER VIBRATION authKW 386513 1% 100% 8
5 HIGH POWER CHARACTERISTICS authKW 295923 1% 88% 7
6 PIEZOELECTRIC LOSSES authKW 289885 1% 100% 6
7 INT ACTUATORS TRANSDUCERS address 211188 4% 19% 23
8 HIGHER HARMONIC VOLTAGE authKW 193257 1% 100% 4
9 PIEZOELECTRIC CERAMIC TRANSFORMER authKW 193257 1% 100% 4
10 PIEZOELECTRIC TRANSFORMERS PTS authKW 193257 1% 100% 4

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 Acoustics 8326 22% 0% 138
2 Engineering, Electrical & Electronic 2331 36% 0% 230
3 Materials Science, Ceramics 1515 10% 0% 63
4 Physics, Applied 1115 29% 0% 181
5 Instruments & Instrumentation 424 9% 0% 56
6 Physics, Condensed Matter 156 10% 0% 65
7 Materials Science, Multidisciplinary 125 13% 0% 83
8 Physics, Fluids & Plasmas 64 3% 0% 19
9 Mechanics 55 4% 0% 27
10 Automation & Control Systems 26 2% 0% 11

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 INT ACTUATORS TRANSDUCERS 211188 4% 19% 23
2 HIGH POWER ELE ODYNAM GRP 144943 0% 100% 3
3 BATTERY PIEZOELECT 134202 1% 56% 5
4 PIEZOELECT 115947 1% 40% 6
5 DEVICES DEV 2 96628 0% 100% 2
6 ELE ODYNAM GRP 96628 0% 100% 2
7 MECHATRON DEVICES 2 96628 0% 100% 2
8 CARACTERISAT RUMENTAT 64418 0% 67% 2
9 DPTO ULTRASON 64418 0% 67% 2
10 INT ACTUATORS TRANSDUCER 64418 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 IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL 87219 16% 2% 100
2 JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 10231 13% 0% 81
3 FERROELECTRICS 8854 8% 0% 48
4 ULTRASONICS 6915 4% 1% 24
5 JAPANESE JOURNAL OF APPLIED PHYSICS 3915 6% 0% 36
6 JOURNAL OF ELECTROCERAMICS 3801 2% 1% 12
7 IEEE TRANSACTIONS ON POWER ELECTRONICS 3784 4% 0% 23
8 INTEGRATED FERROELECTRICS 2743 2% 0% 15
9 INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS 1669 1% 0% 9
10 JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 1436 3% 0% 17

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 PIEZOELECTRIC TRANSFORMER 3417903 15% 73% 97 Search PIEZOELECTRIC+TRANSFORMER Search PIEZOELECTRIC+TRANSFORMER
2 PIEZOELECTRIC TRANSFORMER PT 690191 3% 71% 20 Search PIEZOELECTRIC+TRANSFORMER+PT Search PIEZOELECTRIC+TRANSFORMER+PT
3 NONLINEAR PIEZOELECTRIC COEFFICIENT 483142 2% 100% 10 Search NONLINEAR+PIEZOELECTRIC+COEFFICIENT Search NONLINEAR+PIEZOELECTRIC+COEFFICIENT
4 HIGH POWER VIBRATION 386513 1% 100% 8 Search HIGH+POWER+VIBRATION Search HIGH+POWER+VIBRATION
5 HIGH POWER CHARACTERISTICS 295923 1% 88% 7 Search HIGH+POWER+CHARACTERISTICS Search HIGH+POWER+CHARACTERISTICS
6 PIEZOELECTRIC LOSSES 289885 1% 100% 6 Search PIEZOELECTRIC+LOSSES Search PIEZOELECTRIC+LOSSES
7 HIGHER HARMONIC VOLTAGE 193257 1% 100% 4 Search HIGHER+HARMONIC+VOLTAGE Search HIGHER+HARMONIC+VOLTAGE
8 PIEZOELECTRIC CERAMIC TRANSFORMER 193257 1% 100% 4 Search PIEZOELECTRIC+CERAMIC+TRANSFORMER Search PIEZOELECTRIC+CERAMIC+TRANSFORMER
9 PIEZOELECTRIC TRANSFORMERS PTS 193257 1% 100% 4 Search PIEZOELECTRIC+TRANSFORMERS+PTS Search PIEZOELECTRIC+TRANSFORMERS+PTS
10 VOLTAGE STEP UP RATIO 193257 1% 100% 4 Search VOLTAGE+STEP+UP+RATIO Search VOLTAGE+STEP+UP+RATIO

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 YANG, JH , (2007) PIEZOELECTRIC TRANSFORMER STRUCTURAL MODELING - A REVIEW.IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL. VOL. 54. ISSUE 6. P. 1154 -1170 94 84% 63
2 PULPAN, P , ERHART, J , (2007) TRANSFORMATION RATIO OF "RING-DOT" PLANAR PIEZOELECTRIC TRANSFORMER.SENSORS AND ACTUATORS A-PHYSICAL. VOL. 140. ISSUE 2. P. 215-224 25 89% 13
3 JU, B , SHAO, WW , ZHANG, LS , WANG, HB , FENG, ZH , (2015) PIEZOELECTRIC CERAMIC ACTING AS INDUCTOR FOR CAPACITIVE COMPENSATION IN PIEZOELECTRIC TRANSFORMER.IET POWER ELECTRONICS. VOL. 8. ISSUE 10. P. 2009 -2015 17 100% 0
4 JU, B , SHAO, WW , HUANG, D , YE, Y , FENG, ZH , (2017) A TOPOLOGY FOR INDUCTORLESS ACTUATION OF PIEZOELECTRIC TRANSFORMER WITH SPECIAL DRIVING WAVEFORM.IEEE TRANSACTIONS ON POWER ELECTRONICS. VOL. 32. ISSUE 2. P. 1346 -1354 17 94% 0
5 ERHART, J , (2013) BULK PIEZOELECTRIC CERAMIC TRANSFORMERS.ADVANCES IN APPLIED CERAMICS. VOL. 112. ISSUE 2. P. 91-96 22 79% 1
6 SU, YH , LIU, YP , VASIC, D , COSTA, F , WU, WJ , LEE, CK , (2013) STUDY OF A PIEZOELECTRIC TRANSFORMER-BASED DC/DC CONVERTER WITH A COOLING SYSTEM AND CURRENT-DOUBLER RECTIFIER.SMART MATERIALS AND STRUCTURES. VOL. 22. ISSUE 9. P. - 18 95% 1
7 HU, JH , CHAN, KH , NG, BS , (2009) OUTPUT VOLTAGE REGULATION OF A K(15) MODE PIEZOELECTRIC TRANSFORMER BY AN EXTERNAL L/C COMPONENT.ULTRASONICS. VOL. 49. ISSUE 6-7. P. 532 -537 19 95% 0
8 PARDO, L , GARCIA, A , DE ESPINOSA, FM , BREBOL, K , (2011) SHEAR RESONANCE MODE DECOUPLING TO DETERMINE THE CHARACTERISTIC MATRIX OF PIEZOCERAMICS FOR 3-D MODELING.IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL. VOL. 58. ISSUE 3. P. 646 -657 18 86% 6
9 ADACHI, K , KONNO, T , KOSUGI, S , (2015) CONSTRUCTION OF A LOW-FREQUENCY HIGH-POWER PIEZOELECTRIC TRANSFORMER WITH A SPECIFIED STEP-UP VOLTAGE TRANSFORMATION RATIO USING TWO IDENTICAL BOLT-CLAMPED LANGEVIN-TYPE TRANSDUCERS.JAPANESE JOURNAL OF APPLIED PHYSICS. VOL. 54. ISSUE 6. P. - 16 84% 0
10 SHAO, WW , JU, B , FENG, ZH , LI, PY , LI, ZJ , CUI, YY , (2016) TEMPERATURE DISTRIBUTION ANALYSIS OF PIEZOELECTRIC TRANSFORMER WITH HEAT COUPLE COMPONENT.FERROELECTRICS. VOL. 504. ISSUE 1. P. 72 -86 17 77% 0

Classes with closest relation at Level 1


Rank Class id link
1 21246 DEFECT DIPOLE//GRP SIMULACAO COMPUTAC//RAYLEIGH BEHAVIOUR
2 15900 FLEXTENSIONAL TRANSDUCER//BTECH ACOUST LLC//CYMBAL
3 8365 ULTRASONIC MOTOR//PIEZOELECTRIC MOTOR//ULTRASONIC LINEAR MOTOR
4 21898 ACT STRUCT MAT//LIPCA//INTELLIGENT MICROSYST PROGRAM
5 4462 PZT//PIEZOELECTRIC PROPERTIES//PLZT
6 16614 NIH TRANSDUCER OURCE//NIH OURCE MED ULTRASON TRANSDUCER TECHNOL//TRANSDUCER OURCE
7 10134 1 3 COMPOSITES//PIEZOCOMPOSITE//PIEZOELECTRIC COMPOSITES
8 3068 PZN PT//MORPHOTROPIC PHASE BOUNDARY//PMN PT
9 15620 ELECTRONIC BALLAST//FLUORESCENT LAMPS//HIGH INTENSITY DISCHARGE HID LAMP
10 12419 DOMAIN SWITCHING//DOMAIN CLAMPING//FERROELECTRIC CERAMICS

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