EWGAE 2016 · Marek Nowak Poland ... CALABRESE Luigi, GALEANO Massimiliano, PROVERBIO Edoardo, DI...
Transcript of EWGAE 2016 · Marek Nowak Poland ... CALABRESE Luigi, GALEANO Massimiliano, PROVERBIO Edoardo, DI...
EWGAE 2016
32nd European Conference on Acoustic Emission Testing
Prague, Czech Republic
September 07th - 09th, 2016
Proceedings
Volume 1
Czech Society for Non-destructive Testing
in cooperation with
Brno University of Technology
Edited by: Pavel MAZAL and Lubos PAZDERA
Copyright © 2016 Czech Society for NDT
All Rights Reserved
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Scientific Committee / Reviewers
Ireneusz Baran Poland chairman
Zdenek Prevorovsky Czech Rep. co-chairman
Dimitrios Aggelis Greece Masayasu Ohtsu Japan
Anastasopoulos Athanasios Greece Kanji Ono USA
Petr Benes Czech Rep. Alain Proust France
Jürgen Bohse Germany Edoardo Proverbio Italy
Andreas Brunner Switzerland Rhys Pullin UK
Milan Chlada Czech Rep. Franz Rauscher Austria
Crescenzo Di Fratta Italy Bob Reuben UK
Sergey Elizarov Russia Markus Sause Germany
Antolino Gallego Spain Thomas Schumacher USA
Christian Grosse Germany Tomoki Shiotani Japan
Janez Grum Slovenia Thomas Thenikl Germany
Marvin Hamstad USA Pete Theobald UK
Catherine Herve France Peter Tscheliesnig Austria
Karen Holford UK Hartmut Vallen Germany
Lackner Gerald Austria Shuichi Wakayama Japan
Jean-Claude Lenain France Martine Wevers Belgium
Gerd Manthei Germany Yoshida Kenichi Japan
Marek Nowak Poland
Papers are reviewed by members of Scientific Committee
Local Organising Committee:
• Pavel Mazal chairman • Vaclav Svoboda co-chairman • Luboš Pazdera proceedings • Pavel Turek exhibition • Eva Svobodova member • Vendula Kratochvílová member • Daniela Turkova accommodation
Published by: Czech Society for Non-destructive Testing
in cooperation with Brno University of Technology
ISBN 978-80-214-5386-9 (printed version)
32nd EWGAE III
FOREWORD
This publication contains the papers presented at the 32nd European Conference on
Acoustic Emission Testing held in Prague, Czech Republic on September 7th - 9th
2016. This conference was organized by the European Working Group on Acoustic
Emission in cooperation with the Czech Society for Non-destructive Testing.
The primary objective of the 32nd European Conference on Acoustic Emission
Testing was exchange of information on research and industrial applications of
science and technology of Acoustic Emission (AE). The conference brought together
the expertise of scientists and engineers in academia and industry and covered
activities relevant to effective monitoring of infrastructures and technical systems.
European Working Group on Acoustic Emission (EWGAE) was founded in 1972
by a group of researchers and experts. The primary objective of the EWGAE is
exchange of information on acoustic emission method with particular emphasis on
scientific and technical development. Secondary objectives are a) Promoting the use
of standardised terminology in acoustic emission documentation, b) Providing
information about acoustic emission instrumentation, c) Providing information about
acoustic emission to interested parties outside the Group, and liaising with other
Groups having common interests and d) Development of common standards for
acoustic emission practice (see EWGAE Constitution - www.ewgae.eu/).
Czech Society for Non-destructive Testing (CNDT) is a non-profit public
organization whose main objective is to promote research, development, practical
use and other activities in the field of NDT/NDE of materials and structures in all
industrial areas. Through its diversified activity, the Czech NDT Society seeks to
assure quality and proficiency in the field of NDT/NDE. The contemporary Czech
Society for Non-destructive Testing (founded in 1993) continues a long-time tradition
of the antecedent Czechoslovak NDT Society, established already sixty years ago.
Traditionally, CNDT organizes every year the international “NDE for
Safety/Defektoskopie” conferences, accompanied by tradeshows and workshops.
The society organizes specialized international NDT events, e.g. traditional workshop
“NDT in PROGRESS”. Czech Society for NDT was the main organizer of the
successful 11th European Conference on NDT 2014 in Prague and 25th EWGAE
conference in 2002. More info: www.cndt.cz.
Proceedings are also published in digital form and papers are also presented at
www.NDT.net.
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32nd EWGAE V
CONTENTS
Contributions can be found in alphabetical order according to the surname of the first author.
ALLEVATO Claudio AET MONITORING OF DAMAGED OR CRACKED CRITICALE QUIPMENT
UNTIL REPAIRS OR REPLACEMENT IS POSSIBLE
1
AUGUTIS Stasys V., MURAVIN Boris, VAŠTAKAS Edgaras APPLICATION OF WAVEGUIDES FOR THE CALIBRATION OF ACOUSTIC
EMISSION TRANSDUCERS
7
BARAN Ireneusz, LYASOTA Igor, SKROK Krzysztof ACOUSTIC EMISSION TESTING OF UNDERGROUND PIPELINES OF
CRUDE OIL OF FUEL STORAGE DEPOTS
15
BASHKOV Oleg, POPKOVA Alexandra, SHARKEEV Yurii, BASHKOVA Tatiana ACOUSTIC EMISSION DURING FATIGUE DAMAGE OF
NANOSTRUCTURED TITANIUM
27
BIRCK Gabriel, ITURRIOZ Ignacio A VERSION OF THE DISCRETE ELEMENT METHOD IN THE SIMULATION
OF THE ACOUSTIC EMISSION TESTING
35
BONIFACE Antoine, SBARTAÏ Zoubir M., SALIBA Jacqueline, RANAIVOMANANA Nary
COMPARISON OF LOCALIZATION STRATEGIES OF DAMAGE IN
CONCRETE BY ACOUSTIC EMISSION
45
BRUNNER Andreas J. CORRELATION BETWEEN ACOUSTIC EMISSION SIGNALS AND
DELAMINATIONS IN CARBON FIBER-REINFORCED POLYMER-MATRIX
COMPOSITES: A NEW LOOK AT MODE I FRACTURE TEST DATA
55
CALABRESE Luigi, GALEANO Massimiliano, PROVERBIO Edoardo, DI PIETRO Domenico, DONATO Angelo, CAPPUCCINI Filippo
ADVANCED SIGNAL ANALYSIS APPLIED TO DISCRIMINATE DIFFERENT
CORROSION FORMS BY ACOUSTIC EMISSION DATA
65
CALABRESE Luigi, GALEANO Massimiliano, PROVERBIO Edoardo, DI PIETRO Domenico, DONATO Angelo
MONITORING OF HYDROGEN ASSISTED SCC ON MARTENSITIC
STAINLESS STEEL BY ACOUSTIC EMISSION TECHNIQUE
75
CRESPO Saúl, CARRIÓN Francisco, QUINTANA Juan, SEPÚLVEDA Francisco, HERNÁNDEZ Jorge, GASCA Héctor
AE DEFECT EVALUATION OF THE UPPER ANCHORAGE ELEMENTS OF
A STAYED BRIDGE
85
DROUBI Mohamad G., FAISAL Nadimul H., STUART Alan, MOWAT John, NOBEL Craig, EL-SHAIB Mohamed N.
ACOUSTIC EMISSION TESTING OF COMPOSITE-TO-METAL AND METAL-
TO-METAL ADHESIVE BOND STRENGTHS
95
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DUBOV A. A., SEMASHKO N. A., PRIVALOV V. Yu., KOLOKOLNIKOV S. M.
RESULTS OF STEEL 20 SPECIMENS TENSILE TESTING USING THE METAL
MAGNETIC MEMORY AND ACOUSTIC EMISSION METHODS
105
ELIZAROV Sergey, ALYAKRITSKY Alexander, TROFIMOV Pavel,
BUGANKOV Alexey
THE NEW HARDWARE FEATURES OF A-LINE 32D AE SYSTEMS
109
ELIZAROV Sergey, BARAT Vera, BARDAKOV Vladimir, CHERNOV Dmitry,
TERENTYEV Denis
FEATURES OF THE AE TESTING OF EQUIPMENT ON OPERATING MODE
115
EL-SHAIB Mohamed, KESHK Omar, SHEHEDA Mohamed
MONITORING OF DEEP GROOVE BALL BEARING DEFECTS USING THE
ACOUSTIC EMISSION TECHNOLOGY
125
EL-SHAIB Mohamed, RIAD Omar, SHEHEDA Mohamed
SEEDED FAULT DETECTION ON SPUR GEARS WITH ACOUSTIC
EMISSION
137
ENOKI Manabu, MUTO Yuki, SHIRAIWA Takayuki
EVALUATION OF DEFORMATION BEHAVIOR IN LPSOMAGNESIUM
ALLOYS BY AE CLUSTERING AND INVERSE ANALYSIS
145
FALLAHI N., NARDONI G., PALAZZETTI R., ZUCCHELLI A.
PATTERN RECOGNITION OF ACOUSTIC EMISSION SIGNAL DURING THE
MODE I FRACTURE MECHANISMS IN CARBON-EPOXY COMPOSITE
151
GADE Sebastian O., POTSTADA Philipp, ALACA Benjamin B., SAUSE Markus G. R.
MEASUREMENT OF ELECTROMAGNETIC EMISSION AS A TOOL TO
STUDY FRACTURE PROCESSES OF CARBON FIBRE REINFORCED
POLYMERS
163
GUENTHER Thomas, KROLL Andreas
LOCALIZATION OF COMPRESSED AIR LEAKS IN INDUSTRIAL
ENVIRONMENTS USING SERVICE ROBOTS WITH ULTRASONIC
MICROPHONES
173
HAMSTAD Marvin A.
MODELED TRANSVERSE SURFACE AE SIGNALS FROM BURIED DIPOLE
SOURCES IN A POLYMER ROD
183
HATA Yuto, MIZUTANI Yoshihiro, TODOROKI Akira, SUZUKI Yoshiro
DEVELOPMENT OF A METHOD FOR CLASSIFYING CFRP FRACTURE
MODES BY AE TESTING
193
CHERNOV Dmitry, ELIZAROV Sergey, BARAT Vera, VASILYEV Igor
FEATURES OF THE AE TESTING OF EQUIPMENT ON OPERATING MODE
201
CHLADA Milan, NOHAL Libor, PREVOROVSKY Zdenek
CONDITION MONITORING OF THRUST BALL BEARINGS USING
CONTINUOUS AE
211
ITO Kaita, ENOKI Manabu
HIGH SENSITIVITY DETECTION OF AE EVENTS IN NOISY ENVIRONMENT
USING STREAM RECORDING AND PARALLEL COMPUTATION
217
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JIANG Yu, YANG Zhong, XU Feiyun, XU Bingsheng, GALLEGO Antolino DAMAGE VISUALIZATION AND LOCATION IN METAL STRUCTURE FOR
CRANE BY ACOUSTIC EMISSION TOMOGRAPHY
223
JUNG Doyun, MIZUTANI Yoshihiro, TDOROKI Akira, SUZUKI Yoshiro CHANGE IN B-VALUE BY AE PROPAGATION LENGTH IN CFRP
231
JÜNGERT Anne, DUGAN Sandra, UDOH Annett ACOUSTIC EMISSION TESTING UNDER DIFFICULT CONDITIONS
239
KAMYSHEV Arkady, RAZUVAEV Igor, SUCHKOV Eugeny INVESTIGATIONS OF THE AE SIGNAL PROPAGATION IN THE VESSELS
AND TANKS IN-OPERATION
247
KOBAYASHI Yoshikazu, SHIOTANI Tomoki TWO-DIMENSIONAL Q-VALUE AE-TOMOGRAPHY AND ITS VERIFICATION
ON NUMERICAL INVESITIGATIONS
253
KRATOCHVILOVA Vendula, VLASIC Frantisek, MAZAL Pavel STUDY OF FATIGUE PROCESSES OF SELECTIVE LASER MELTING AND
CONVENTIONAL PRODUCED MATERIALS
263
LACKNER Gerald, TSCHELIESNIG Peter ACOUSTIC EMISSION TESTING ON LPG TANKS – DEFECT DETECTION
CASE STUDIES
271
LIU Zhidong, LIAO Hongqiang, LIU Yuan THE TIME SEQUENCE CHARACTERISTICS AND LOCATION METHOD OF
AE SOURCE INDUCED BY DEBRIS CLOUD
279
LIVITSANOS G., SHETTY N., VERSTRYNGE E., WEVERS M., Van HEMELRIJCK D., AGGELIS D. G.
CHARACTERIZATION OF FRACTURE MODE IN MASONRY BY ACOUSTIC
EMISSION
287
LOKAJÍČEK Tomáš, PŘIKRYL Richard, ŠACHLOVÁ Šárka, KUCHAŘOVÁ Aneta
ALKALI SILICA REACTIVITY STUDY OF ACCELERATED MORTAR BAR
BY MEANS OF ACOUSTIC EMISSION AND ULTRASONIC SOUNDING
297
LUO Sha, DIAMBRA Andrea, IBRAIM Erdin APPLICATION OF ACOUSTIC EMISSION ON CRUSHING MONITORING
OF INDIVIDUAL SOIL PARTICLES IN UNIAXIAL COMPRESSION TEST
305
MAHMOUD Houssam, VLASIC Frantisek, MAZAL Pavel, JANA Miroslav DAMAGE IDENTIFICATION OF PNEUMATIC COMPONENTS BY
ACOUSTIC EMISSION
315
MAZAL Pavel, MAHMOUD Houssam, DOSTAL Petr, CERNY Michal, SUSTR Michal, ZACAL Jaroslav
COOPERATION OF MENDEL UNIVERSITY AND BRNO UNIVERSITY
OF TECHNOLOGY IN THE FIELD OF BIOLOGICAL APPLICATIONS OF
AE METHOD
323
MIZUTANI Yoshihiro, MIKI Takehiro, TODOROKI Akira, SUZUKI Yoshiro MANUAL LAMB WAVE TOMOGRAPHY UTILIZING AE TECHNIQUE
333
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MURAVIN Boris, GOTTESMAN Tamara
ACOUSTIC EMISSION COMPARATIVE STUDY OF CARBON/EPOXY
COMPOSITES UNDER LOAD
343
NISHIDA Takahiro, SHIOTANI Tomoki, ASAUE Hisafumi, SAGRADYAN Artur
EVALUATION OF INTERNAL DEFECTS OF REINFORCED CONCRETE
COLUMNS BY MEANS OF AE TOMOGRAPHY
353
NOWAK Marek, LYASOTA Igor, BARAN Ireneusz
THE TEST OF RAILWAY STEEL BRIDGE WITH DEFECTS USING ACOUSTIC
EMISSION METHOD
363
OGURA Norihiko, YATSUMOTO Hitoshi, SHIOTANI Tomoki
INTERNAL CONCRETE INSPECTION AND EVALUATION METHODS FOR
STEEL PLATE-BONDED SLABS BY USING ELASTIC WAVES VIA ANCHOR
BOLTS
373
ONGPENG Jason Maximino C., ORETA Andres Winston C., HIROSE Sohichi
MONITORING DAMAGE IN REINFORCED CONCRETE STRUCTURE USING
SEESAW EFFECT THROUGH ACOUSTIC EMISSION TEST
383
PANEK Maciej, NOWAK Marek, BARAN Ireneusz, KONSZTOWICZ Krzysztof J.
ACOUSTIC EMISSION DETECTION OF DAMAGE INITIATION IN 1D CFRP
NCF COMPOSITES SUBJECTED TO BENDING
393
PAZDERA Lubos, TOPOLAR Libor, SMUTNY Jaroslav, MIKULASEK Karel,
CIKRLE Petr
ACOUSTIC EMISSION METHOD IN CIVIL ENGINEERING APPLIED TO
MONITORING THERMAL LOADING CONCRETE SPECIMENS BY A THREE-
POINT BENDING TEST
403
PETRUŽÁLEK Matěj, LOKAJÍČEK Tomáš, SVITEK Tomáš
ACOUSTIC EMISSION AND ULTRASONIC SOUNDING AS A TOOL FOR
MIGMATITE FRACTURING
409
RAVNIK Franc, GRUM Janez
IDENTIFICATION OF MACHINE COMPONENTS CRACKING WITH SOUND
EMISSION DURING STEEL QUENCHING
419
SAGASTA Francisco, MIZUTANI Yoshihiro, VALVERDE Ignacio,
SUAREZ Elisabet, RESCALVO Francisco J., GALLEGO Antolino
INFLUENCE OF ATTENUATION ON THE ACOUSTIC EMISSION B-VALUE
FOR DAMAGE EVALUATION OF REINFORCED CONCRETE SPECIMENS
433
SAUSE Markus G. R.
ACOUSTIC EMISSION SOURCE IDENTIFICATION IN LARGE SCALE FIBRE
REINFORCED COMPOSITES
441
SERRIS Eric, CAMEIRAO Ana, GRUY Frédéric
MONITORING INDUSTRIAL CRYSTALLIZATION USING ACOUSTIC
EMISSION
451
SHIOTANI Tomoki, NISHIDA Takahiro, ASAUE Hisafumi, MAESHIMA Takuya
QUANTIFICATION OF FATIGUE DAMAGE EVALUATION IN RC SLABS
DURING WHEEL LOADING TEST BY MEANS OF 3D AE TOMOGRAPHY
461
Václav, ŽEMLIČKA František
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343
AN Artur 353
363
373
chi 383
sztof J. 393
rel, 403
PETRUŽÁLEKMatěj LOKAJÍČEK 409
419
433
441
451
Takuya 461
SVOBODA Václav, ŽEMLIČKA František
CONTINUOUS MONITORING OF STORAGE TANK BY ACOUSTIC
EMISSION METHOD
471
ŠOFER Michal, CRHA Jan, ZENGERLE Hannah
FROM NEAR FIELD TO FAR FIELD AND BEYOND
475
TARASENKO Alexander, BOHAC Petr, JASTRABIK Lubomir
SURFACE ACOUSTIC WAVES IN THE LAYERED SYSTEMS
485
THENIKL Thomas, ALTMANN Daniel, VALLEN Hartmut
QUANTIFYING LOCATION ERRORS
495
TSCHELIESNIG Peter, JAGENBREIN Andreas, LACKNER Gerald
DETECTING CORROSION DURING INSPECTION AND MAINTENANCE
OF INDUSTRIAL STRUCTURES USING ACOUSTIC EMISSION
503
VALLEN Hartmut, THENIKL Thomas, TRATTNIG Horst
EN13477-2 VERIFICATION OF AE INSTRUMENTATION - STATUS AND
PROPOSALS FOR IMPROVEMENT
511
VALLEN Hartmut, THENIKL Thomas, TRATTNIG Horst
OBTAINING WAVE-PATH INFORMATION FROM PULSED SENSOR PAIRS
517
WILLEMS Fabian, BENZ Johannes, BONTEN Christian
DETECTING THE CRITICAL STRAIN OF FIBER REINFORCED PLASTICS
BY MEANS OF ACOUSTIC EMISSION ANALYSIS
525
YOSHIDA Kenichi, KINOUCHI Hiroyuki, YASUDA Takeshi
EXAMINATION OF DYNAMIC BEHAVIOR DUE TO AE METHOD OF
MARTENSITIC TRANSFORMATION DURING BENDING DEFORMATION IN
CU-AL-NI SHAPE MEMORY ALLOY SINGLE CRYSTAL
535
YU Fengming, OKABE Yoji¸ WU Qi, SHIGETA Naoki
DAMAGE TYPE IDENTIFICATION BASED ON ACOUSTIC EMISSION
DETECTION USING A FIBER-OPTIC SENSOR IN CARBON FIBER
REINFORCED PLASTIC LAMINATES
543
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INDEX OF AUTHORS
AGGELIS D. G. 287 ALACA Benjamin B. 163 ALLEVATO Claudio 1 ALTMANN Daniel 495 ALYAKRITSKY Alexander 109 ASAUE Hisafumi 353, 461 AUGUTIS Stasys V. 7 BARAN Ireneusz 15, 363, 393 BARAT Vera 115, 201 BARDAKOV Vladimir 115 BASHKOV Oleg 27 BASHKOVA Tatiana 27 BENZ Johannes 525 BIRCK Gabriel 35 BOHAC Petr 485 BONIFACE Antoine 45 BONTEN Christian 525 BRUNNER Andreas J. 55 BUGANKOV Alexey 109 CALABRESE Luigi 65, 75 CAMEIRAO Ana 451 CAPPUCCINI Filippo 65 CARRIÓN Francisco 85 CERNY Michal 323 CIKRLE Petr 403 CRESPO Saúl 85 CRHA Jan 475 DI PIETRO Domenico 65, 75 DIAMBRA Andrea 305 DONATO Angelo 65, 75 DOSTAL Petr 323 DROUBI Mohamad G. 95 DUBOV A. A. 105 DUGAN Sandra 239 ELIZAROV Sergey 109, 115, 201 EL-SHAIB Mohamed N. 95, 125, 137 ENOKI Manabu 145, 217 FAISAL Nadimul H. 95 FALLAHI N. 151 GADE Sebastian O. 163 GALEANO Massimiliano 65, 75 GALLEGO Antolino 223, 433 GASCA Héctor 85 GOTTESMAN Tamara 343 GRUM Janez 419
GRUY Frédéric 451 GUENTHER Thomas 173 HAMSTAD Marvin A. 183 HATA Yuto 193 HERNÁNDEZ Jorge 85 HIROSE Sohichi 383 CHERNOV Dmitry 115, 201 CHLADA Milan 211 IBRAIM Erdin 305 ITO Kaita 217 ITURRIOZ Ignacio 35 JAGENBREIN Andreas 503 JANA Miroslav 315 JASTRABIK Lubomir 485 JIANG Yu 223 JUNG Doyun 231 JÜNGERT Anne 239 KAMYSHEV Arkady 247 KESHK Omar 125 KINOUCHI Hiroyuki 535 KOBAYASHI Yoshikazu 253 KOLOKOLNIKOV S. M. 105 KONSZTOWICZ Krzysztof J. 393 KRATOCHVILOVA Vendula 263 KROLL Andreas 173 KUCHAŘOVÁ Aneta 297 LACKNER Gerald 271, 503 LIAO Hongqiang 279 LIU Yuan 279 LIU Zhidong 279 LIVITSANOS G. 287 LOKAJÍČEK Tomáš 297, 409 LUO Sha 305 LYASOTA Igor 15, 363 MAESHIMA Takuya 461 MAHMOUD Houssam 315, 323 MAZAL Pavel 263, 315, 323 MIKI Takehiro 333 MIKULASEK Karel 403 MIZUTANI Yoshihiro 193, 231, 333,
433 MOWAT John 95 MURAVIN Boris 7, 343 MUTO Yuki 145 NARDONI G. 151
32nd EWGAE XI
NISHIDA Takahiro 353, 461 NOBEL Craig 95 NOHAL Libor 211 NOWAK Marek 363, 393 OGURA Norihiko 373 OKABE Yoji 543 ONGPENG Jason Maximino C. 383 ORETA Andres Winston C. 383 PALAZZETTI R. 151 PANEK Maciej 393 PAZDERA Lubos 403 PETRUŽÁLEK Matěj 409 POPKOVA Alexandra 27 POTSTADA Philipp 163 PREVOROVSKY Zdenek 211 PRIVALOV V. Yu. 105 PROVERBIO Edoardo 65, 75 PŘIKRYL Richard 297 QUINTANA Juan 85 RANAIVOMANANA Nary 45 RAVNIK Franc 419 RAZUVAEV Igor 247 RESCALVO Francisco J. 433 RIAD Omar 137 SAGASTA Francisco 433 SAGRADYAN Artur 353 SALIBA Jacqueline 45 SAUSE Markus G. R. 163, 441 SBARTAÏ Zoubir M. 45 SEMASHKO N. A. 105 SEPÚLVEDA Francisco 85 SERRIS Eric 451 SHARKEEV Yurii 27 SHEHEDA Mohamed 125, 137 SHETTY N. 287 SHIGETA Naoki 543 SHIOTANI Tomoki 253, 353, 373,
461 SHIRAIWA Takayuki 145 SKROK Krzysztof 15 SMUTNY Jaroslav 403
STUART Alan 95 SUAREZ Elisabet 433 SUCHKOV Eugeny 247 SUSTR Michal 323 SUZUKI Yoshiro 193, 231, 333 SVITEK Tomáš 409 SVOBODA Václav 471 ŠACHLOVÁ Šárka 297 ŠOFER Michal 475 TARASENKO Alexander 485 TDOROKI Akira 231 TERENTYEV Denis 115 THENIKL Thomas 495, 511, 517 TODOROKI Akira 193, 333 TOPOLAR Libor 403 TRATTNIG Horst 511, 517 TROFIMOV Pavel 109 TSCHELIESNIG Peter 271, 503 UDOH Annett 239 VALLEN Hartmut 495, 511, 517 VALVERDE Ignacio 433 Van HEMELRIJCK D. 287 VASILYEV Igor 201 VAŠTAKAS Edgaras 7 VERSTRYNGE E. 287 VLASIC Frantisek 263, 315 WEVERS M. 287 WILLEMS Fabian 904 WU Qi 543 XU Bingsheng 223 XU Feiyun 223 YANG Zhong 223 YASUDA Takeshi 535 YATSUMOTO Hitoshi 373 YOSHIDA Kenichi 535 YU Fengming 543 ZACAL Jaroslav 323 ZENGERLE Hannah 475 ZUCCHELLI A. 151 ŽEMLIČKA František 471
XII 32nd EWGAE
32nd EWGAE XIII
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NOTES