38th Annual Symposium

The Marriott Bloor Hotel
90 Bloor Street East
Toronto, M4W 1A7, Ontario, Canada
July 14-16, 2004

Program

Wednesday, July 14

1:00 PM Short Course
Fundamentals of Microwave Heating
This basic introductory course is designed for engineers, physicists, researchers and technologists without extensive experience in electromagnetic theory and applications. Participants need not have a strong background in engineering or science to be able to participate in this course. At the conclusion of this course, participants will have a working knowledge of terminology, electromagnetic heating theory, safety, and basic material interactions.

4:00 PM Registration Open

5:30 PM Welcoming Reception in Exhibit Hall

Thursday, July 15

8:15 AM Welcome, IMPI President Neal Cooper

9:00 AM Keynote Session

Biology and Electromagnetics

Dr. Kenneth R. Foster, University of Pennsylvania
Kenneth Foster, Professor of Bioengineering at the University of Pennsylvania, is an internationally known expert on health and safety issues related to radiofrequency energy. Since earning his Ph.D. in physics in 1971, he has been engaged in studies on the interaction of radiofrequency energy with biological systems, including biophysical mechanisms of interaction, and medical applications and possible health effects of microwave energy. He has written widely in both technical and popular journals about the public controversy surrounding the possible health risks of microwaves, and about the problem of setting limits for exposure to microwave energy. He is coauthor or coeditor of two books on risk assessment and the law.

10:00 AM Coffee Break

10:30 AM Concurrent Sessions

Session A: Dielectric Properties

• Permittivity and Permeability Measurement of Mw Packaging Materials.
  Georges Roussy, Pro-Mi-The, France and Hector Esteban, Universidad Politecnica de Valencia, Spain
  
• Useful Permittivity-density Relationships for Granular and Powdered Materials
  Stuart O. Nelson, U.S. Department of Agriculture, USA
  
• Investigation of the Dielectric Properties of a Sample Under Pressure
  Nguyen Tran and Michael Malcmann, Swinburne Univ. of Technology, Australia

Session B: Introduction to Microwave Food Science

Presenter: Peter Pesheck, General Mills
Peter Pesheck, Technical Fellow at General Mills, will provide attendees with a brief overview of the basic science behind the science of researching and developing food products for the microwave.

12:00 PM Annual IMPI Awards Luncheon

The IMPI Technical Advisory Committee and Board of Governors will present various awards, including the induction of a Fellow, several previous years' best paper awards and other special recognitions.

1:30 PM Concurrent Sessions

Session A: Industrial Mw and RF Energy I: Applications

• Density-Independent Measurement of High Moisture Content Using Microstrip Transmission Linen
  Yangjun Zhang, Ryukoku University, Ohtsu, Shiga, Japan
  
• Multi-applicator Tunnel Ovens for Processing of Foods and Similar Materials
  Per O. Risman, Microtrans AB, Sweden
  
• Design of a Microwave Plasma Torch Using a Ridged Cavity Resonator
  Nguyen Tran and Michael Malcmann, Swinburne Univ. of Techn., Australia
  

Session B: Modeling of Microwave Heating

Presenter: Dr. Vadim Yakovlev, Worchester Polytechnic Institutey
Dr. Yakovlev will present a state of the industry report and overview of microwave modeling applications and current uses in research and development.

3:00 PM Break in Exhibit Hall

3:30 PM Concurrent Sessions

Session A: Industrial Mw and RF Energy II: Instruments and Measurements

• Three-Dimensional Temperature Mapping of Microwave Induced Heating Using Non-invasive MRI
  K. Knoerzer(1), M. Regier(2), E.H. Hardy(3), A. Hermann(1) and H. Schubert(1)
  1) Inst. Of Food Process Eng., Univ. of Karlsruhe,
  2) Inst. Of Process Eng., Federal Research Centre for Nutrition
  3) Inst. Of Mechanical Process Eng. And Mechanics, Univ. of Karlsruhe, Germany
  
• Continuous Non-Contact Remote Temperature Sensing During Microwave Heating with Microwave Radiometry
  Karl D. Stephan, Texas State University, and John A Pearce, The University of Texas at Austin, USA.
  
• MMeasurements of Complex Impedance in Microwave High Power Systems with a New Bluetooth Integrated Circuit
  Georges Roussy, Pro-Mi-The, Laxou France.
  

Session B: Practical Product Development

The Research Chefs Association (RCA) is the leading professional community for food research and development. Its members are the pioneers of Learn about the ways in which microwave product development differs from that of conventional ovens, including troubleshooting, common errors to avoid and new approaches to creating innovative packaging and products.

5:00 PM IMPI Business Meeting

6:00 PM Reception in Exhibit Hall

Friday, July 16

8:30 AM Concurrent Sessions

Session A: Industrial Mw and RF Energy III: Environmental and Agricultural Applications

• Pyrolysis of Wood with Microwave Heating
  J. Johannessen, IFE Inst. for Energy Technology, Norway
  
• Microwave Regeneration of Activated Carbon Fiber Cloth
  Z. Hashisho, M. Rood and L. Botich, Univ. of Ill. at Urbana-Champaign, USA
  
• A Review of Microwave Power and RF Power Applications in Agriculture
  S. Nelson, US Dept. of Agriculture, USA
  

Session B: Microwave Food Packaging

Larry Lai of Graphic Packaging International will share insight into what it took for the company to create some of the most recognizable packages in the marketplace. Mr. Lai, who has been involved in the utilization of aluminum foil as an integral part of microwave cooking systems since 1986, will discuss technology and his experience in working with customers to attain commercial success.

10:15 AM Coffee Break

10:45 AM Concurrent Sessions

Session A: Industrial Mw and RF Energy IV: Microwave Assisted Chemistry

• Estimating Activation Energy and Frequency Factor from Transient Temperature Experiments
  J. Pearce, Univ. of Texas at Austin, USA
  
• Microwaves as an Energy Source for Producing Zeolites
  J. Aguilar, A. Perez, Univ. Autonoma de Nuevo Leon, Mexico
  
• Effect of Mw Radiation on the Grindability and Floatability of Nickel-Copper Ores
  R. Henda, A. Hermas, R. Gedye; Laurentian Univ., Canada
  

Session B: Current Microwave-Related Trends

Take a look at the latest consumer ovens to hit the market, recent developments in microwave food technology and packaging, and their impact on the microwave oven industry

12:00 PM Lunch (on your own)

1:30 PM Concurrent Sessions

Session A: Numerical Modeling

• Microwave Modeling: A Tool for Dielectric Measurements and Material Inhomogeneity Studies
  P. Risman, Microtrans AB, Sweden
  
• The Importance of Simulation Software in the Successful Design of a Microwave Power Applicator
  N. Tran and M. Malcmann, Swinburne Univ. of Technology, Australia
  

Session B: New Developments in Combination Ovens

Presenter: Neal Cooper, Turbochef and Alison Brushaer, Chefs Consortium
A discussion of how combination ovens work, the latest technology to hit the market and current design and development trends. The session will be followed by hands-on experimentation with one of Turbochef's latest ovens.

2:45 PM Break in Exhibit Hall

3:45 PM Concurrent Sessions

Session A: Numerical Modeling II

• Enhancements to the FDTD Method for Steady State Power Deposition Analysis in Microwave Heating Cavaties
  J. George, M. Muktoyuk and R. Bergman, Corning Inc., USA
  
• Advances in Computer Optimization of Microwave Heating Systems
  1) V. Mechenova(1,2), E. Murphy(1,3) and V. Yakovlev, Worcester Polytechnic Institute(1),
  2) The Ferrite Company, Inc.
  3) Colorado Stae Univ., USA
  
• Evaluation of FEMLAB Numerical Models for RF and MW Equipment and Processese
  J. Pearce, Univ. of Texas at Austin, USA.
  

Session B: Microwave Myths: What is Fact, What is Fiction?

Does microwave cooking remove nutrients from vegetables? Are fumes from microwave popcorn toxic? Does water explode if you heat it in the microwave too long? Does plastic wrap used leak toxins when used in a microwave? Ask our panel of experts and learn the answers to these frequently asked questions and more.

4:30 PM Symposium Ends

POSTER PRESENTATIONS:

• Remote Recharge via Wireless Power Beam for Electric Vehicles and Equipment
  Ronald J. Parise, Parise Research Technologies, USA
  
• Investigation of the Dielectric Properties of a Sample While it is Heated with the Same Source of Microwaves
  Nguyen Tran and Michael Malcmann, Swinburne Univ. of Techn., Australia