Longitudinal ultrasonic velocity as a predictor o material properties of porous materials - Jose P. Panakkal, Advanced Fuel Fabrication Facility, Bhabha Atomic Research Centre, Tarapur, India 401 502 (ndt.net) Theory and application of precision ultrasonic thickness gaging - By Kenneth A. Fowler, Gerry M. Elfbaum, Karen A. Smith and Thomas J. Nelligan (Panametrics) The Nondestructive Evaluation of Advanced Ceramics and Ceramic-Matrix Composites - Jeongguk Kim and Peter K. Liaw (JOM) Reviev of advanced ultrasonic techniques for aerospace structures - (ndt.net) Ultrasonic Air-Coupled Inspection of Advanced Material - Jan O. Strycek and Hanspeter Loertscher (ndt.net) Piezoelectric materials for ultrasonic probes - M. Lach, M. Platte, A. Ries (NDTnet) Is Calibration Necessary? - Robert A. Day examines the wisdom of neglecting periodic calibration and maintenance for periods of years as has occurred at some institutions. EMAT technology for High-Temperature NDE - ndt.net High Temperature Ultrasonic Transducers - ndt.net Resonance inspection - the answer to new industrial demands with regard to quality assurance - U. Schlengermann, W. Hansen, Krautkrämer GmbH and Co. (ndt.net) Ceramic Automotive Valves - Chances and Limitations of Nondestructive Testing - U. Netzelmann, H. Reiter, Y. Shi, J. Wang and M. Maisl (ndt.net) An Ultrasonic Sensor for High-Temperature Materials Processing - David A. Stubbs and Rollie E. Dutton, (JOM - a publication of The Minerals, Metals and Materials Society) Wave Modes Produced by Air Coupled Ultrasound - by Jan O. Strycek, Willem A. Grandia, and Hanspeter Loertscher (NDT-net) Ultrasonic Properties of a new low attenuation dry couplant elastomer. - E.A.Ginzel and R.K.Ginzel (ndt.net). Principle and Applications of Practical Shear Wave Lens at Low frequencies for Scanning Acoustic Microscopy - Chiaki Miyasaka, and Bernhard R. Tittmann. Department of Engineering Science and Mechanics, The Pennsylvania State University. Ultrasonic resonance spectroscopy, quality assurance testing of: concrete, aerospace and die-cast aluminium. - Andrews, D.R., Instrumentation Innovation Ltd , Church Farm Barn, Horse Ware, Over, Cambridge CB4 5NX, GB. Towards SAFT-Imaging in Ultrasonic Inspection of Concrete - M. Schickert (Martin.Schickert@mfpa.de), Materialforschungs- und prüfanstalt (MFPA) at HAB, Weimar (D) On a Possibility of Rayleigh Transformed Sub-Surface Waves Propagation - E. G. Nesvijski Center of Technology, Federal University of Santa Maria Campus Universitario, Santa Maria, RS 97110-970, Brazil (NDT-net) Piezoelectric Materials, Ultrasound Transducers and Arrays Characterisation by Laser Interferometry - Nicolas Felix (VERMON), Dominique Certon, Frederic Patat and Marc Lethiecq (GIP Ultrasons / LUSSI),The e-Journal of Nondestructive Testing and Ultrasonics - Issue Vol. 5 No. 9 - September 2000. High transduction Piezoelectric transducers and introduction of Non-Contact analysis - Mahesh C. Bhardwaj Ultran Laboratories, Inc (NDT-net) Acoustoelastic Phenomena of Wood - Yasutoshi Sasaki and Kosei Ando Faculty of Agricultural Sciences, Nagoya University Nagoya 464-8601, Japan (NDT-net) Characterization of ceramic coatings with large-aperture low-frequency transducers - Pentti Kauppinen, Harri Jeskanen and Jorma Pitkänen VTT Manufacturing Technology FINLAND (NDT-net) Ultrasonic beams focusing in piezoelectric crystals and ferroelectric ceramics by application of a nonuniform electric field - V.N.Belyi, N.S.Kazak V.K.Pavlenko, A.G.Mashchenko and F.M.Severin (NDT-net) Synthesis of ultrasonic transducers directional diagram - P.Prokhorenko, A.Baev, G.Konovalov, A.Mayorov (NDT-net) Approximative Modeling for the Practical Application at Ultrasonic Inspections - H.Wüstenberg, A.Erhard (NDT-net) PVDF and Array Transducers - Robert A. Day (NDT-net) Ultrasonic Inspection of Copper Canisters using Phase Arrays - T. Stepinski, P. Wu, E. Martinez * In collaboration with SKB (Swedish Nuclear Fuel and Waste Management Co) - NDT-net. On Design of Ultrasonic Transducers and Accuracy of Velocity Measurements - Nesvijski E. G. Center of Technology, UFSM, Santa Maria, RS, Brazil (NDT-net) Application related evaluation of ultrasonic probes - Dr. Werner Roye,Udo Schlengermann, KRAUTKRÄMER GmbH and Co. oHG, D - Hürth (NDT-net). Ultrasonic Testing Using a Unipolar Pulse - Y. Udagawa Imaging Supersonic Laboratories Co.,Ltd. (NDT-net) Scanning Modes at the Application of Ultrasonic Phased Array Inspection Systems - H. Wüstenberg, A. Erhard, G. Schenk (NDT-net) Simulation of Voltage Waveform Converted from Sound Pressure in Ultrasonic Test - Yoshio Udagawa, Imaging Supersonic Laboratories Co.,Ltd. (NDT-net). Air-coupled Ultrasound - A Millennial Review - Joe Buckley, Sonatest Plc (NDT-net) Some Characteristic Parameters of Ultrasonic Phased Array Probes and Equipments - H. Wüstenberg, A. Erhard, G. Schenk BAM - Berlin (NDT-net) Adaptive Inspection of Component of Complex Geometry with a Flexible Phased Array Probe - S. Mahaut, O. Roy and S. Chatillon, Commissariat à l'Energie Atomique, CEA/CEREM, CE Saclay France (NDT-net) Lamb and SH Wave Transducer Arrays for the Inspection of Large Areas of Thick Plates - P.Wilcox, M.Lowe, P.Cawley: Department of Mechanical Engineering, Imperial College; London (NDT-net) A Study on the Guided Wave Mode Conversion Using Self-calibrating Technique - Cho, Younho Department of Mechanical Engineering, Inje Univ., The Republic of Korea Park, Jung-Chul NDT Engineering Co., The Republic of Korea Joseph L. Rose Engineering Science and Mechanics Dept. Penn State University, USA Derrick D. Hongerholt BFGoodrich Aerospace, USA (NDT-net) Nondestructively Inspect Material Integrity With An Airborne Ultrasonic Beam - Technical Note by NDT Systems, Huntington Beach, CA, USA (NDT-net) Ultrasonic flow detection for small and medium diameter pipe bends - Shao-he Song, Xin Zhang, Jin-qiang Hu; Gansu Electric Powere Test and Research Institute, China (NDT-net). The Development and Application of Single Crystal Creeping Wave Probe with Line-focusing - Zheng Kaisheng,Chen Yucheng Baoji Non-ferrous Metals Works, Baoji 721014 Peng Yingqiu Nanchang Institute of Aeronautica Technology (NDT-net) Advances in Ultrasonic transducer Development - H.H.J. Huynen, F.H. Dijkstra, T. Bouma, Röntgen Technische Dienst bv, Rotterdam, The Netherlands H. Wüstenberg Bundesanstalt für Materialforschung und -Prüfung, Berlin, Germany (NDT-net) Material Characterisation Probe - Harri Jeskanen, Pentti Kauppinen, Jorma Pitkänen and Seppo Tähtinen VTT Manufacturing Technology FINLAND (NDT-net) Ultrasonic testing and image processing for in-progress weld inspection - by Shaun Lawson Polymer Piezoelectric Transducers for ultrasonic NDE - Yoseph Bar-Cohen, Tianji Xue and Shyh-Shiuh Lih (NDTnet) High-Frequency Sound Interaction in Ocean Sediments - Paper by D. R. Jackson and K. L. Williams, Applied Physics Laboratory, University of Washington, Seattle, WA. Nonlinear Interaction of Ultrasonic Waves in an Inhomogeneously Predeformed Elastic Material - Paper by Ravasoo Arvi, Institute of Cybernetics at Tallinn Technical University, Estonia.