- Particle Ejection Mechanisms in Due to Bubble Erubtions in Fluidized Beds, Masters Thesis, Lehigh University
Fluidized beds are containers filled with powder that have a prous bottom where a gas, typically air, is forced up through the bottom into the "bed" of powder. If the gas is forced at a high enough velocity the particles will seperate and the bed will "Fluidize". The fluidized bed resembles a pot of boiling water. The fluidized bed is a promissing coal combustion technology if a mixture of powered coal and limestone is used as the powder. It promisses high efficiency and low emissions.See a picture of real bubbles rising in a two-dimensional fluidized bed.
- Single Bubble Eruptions in Gas Fluidized Beds, E. Levy, J. Dille, H. Caram, Powder Technology, 32 (1982) Pages 173-178
- Mechanisims for Solid Ejection from Gas Fluidized Beds, E. Levy, J. Dille, H. Caram, S. Edelstine, AIChE Journal (Vol 29, No. 3) May 1983, Pages 383-388
- High Efficiency Pressurized Fluid Bed Systems, P. Berman, J. Dille, American Society of Mechanical Engineers, April 1982, 83-GT-166
A power system for generating electricty is studied that will burn coal in an efficient and clean manner using a pressurized fluidized bed combustor.
- High Efficiency Pressurized Fluid Bed Systems, P. Berman, J. Dille,Modern Power Systems, November 1983, Vol 3 No 10, Pages 39-44
- Pressurized Fluidized-Bed Combustion Cycle Screening Study, Electric Power Research Institute, EPRI CS-3151, Project 1180-13 final report, July 1983
- Conceptual Design and Assesment of a Pressurized Circulating Fluidized-Bed Boiler, EPRI CS-3206, Projects 1645-10, -11, -12 final report, December 1983
- Measuring Response Characteristics in MFCs, Semiconductor International, July 1988
Mass Flow Controllers (MFCs) are electronic instruments that can measure and control gas flow. They are quite accurate and are commonly used in the semiconductor industry to make the integrated circuits on the silicon wafers.
- Beyond Conversion Factors , Semiconductor International, July 1998
- Worked as Co-chair on "Mass Flow Controllers Test Methods" task force since the mid 80's to publish more than 10 SEMI standards relating to the performance of Mass Flow Controllers (MFCs) in the semiconductor industry
- Instrument Light Repair, BMWMOA Owners, News May 1990, Page 61.
How to repair the flexible circuit on a BMW /6 instrument light.
- BMW Speedometer Accuracy, BMWMOA Owners News, April 1990, Pages 42-44
I recalibrate the speedometer on R90s and improve the accuracy from 10% to 1%.
- The First 11 Years, BMWMOA Owners News, March 1998, Pages 42-44
A chronicle of my experience building and owing an EML sidecar for the last 11 years.
- The EML Factory, BMWMOA Owners News, March 1998, Page 45
A report on my 1989 tour of the EML factory in Neede Holland.
- My Lucky Sign, Sidecarest 1996.
A funny story about how I repaired the bike after the sidecar came partly off on a long trip.
- EML Sidecar Vibration Cure, Sidecarest, Volume 14 No 2, March 1- April 15, Pages 26-27.
Describes how I improved the body mounts for my EML sidecar with industrial shock mounts, including load calculations.
- BMW K-bike valve tools
This document has a template and instructions for making tools to adjust your K-series BMW shim over bucket motorcycles valves. Saves almost $100 over the official tools at the dealer.
- My Friendship with a R75, Sidecarest, Volume 13 No 5, July 15- August 31 1989, pages 20-22.
A story about my BMW R75/5 with a California Friendship model sidecar. The first two B&W pictures were the only ones included in this article. I have augmented this article with many color pictures of the process of rebuilding the bike in my one room appartment.
- "Keeping It All Together", A 3 part article in the BMW Owners News
Owner maintenance is often a topic of conversation when kicking tires and telling lies with my riding friends. The subject of threaded fasteners often comes up, which prompts questions such as:
How tight is tight enough?
What is the difference between stainless fasteners and stock steel fasteners?
How can a stripped thread be fixed?
Why should the drive shaft bolts be replaced each time they are removed?
How accurate are torque wrenches?
Through my work as a mechanical engineer and over 25 years of wrenching on things with wheels and wings I have gained insight to these and other related questions. I thought it was time to write it down and share some of this information. My goal is to provide understanding of how threaded fasteners work so that riders that do their own wrenching will do a better job. I hope to also dispel some old wives tails that tend to flourish during bench racing sessions. I have broken the subject into three parts, the basics of threaded fasteners, fastener types, and torque wrenches. I hope you like it.
- How A Bolt Works, BMWMOA Owners News, September 2000, Pages 14-19
A down to earth description of how threaded fasteners work. The threaded fasteners in our motorcycles work by stretching when tightened to produce a tension that clamps parts together. Tightening to a specified torque is the most common way of tightening/preloading fasteners. However, this produces a preload force with a potential for a +/-25% error.
- The Nuts and Bolts of Bolting, BMWMOA Owners News, October 2000, Pages 13-17
Some people may wonder why there are so many types of screws and bolts. Others may wonder what the markings on the head mean. In this installment I discuss the different fastener types used on our BMW motorcycles and some common fastener-related problems.
- Torque Wrenches - How Good Are They?, BMWMOA Owners News, November 2000, Pages 15-18
It is important to have a reliable, accurate torque wrench to properly tighten fasteners to specification. A torque wrench is probably one of the most expensive hand tools in your collection. In this, the final installment, I explain the differences between the two common types of torque wrenches and explain how to use them. I also share data I obtained by testing a bunch of wrenches.
- How to Measure a Bicycle Chain, I show how to measure a bicycle chain with a simple dial caliper.
- Anatomy of a Failed Bicycle Spoke, I show pictures of a failed bicycle spoke including SEM images of the fracture surface.
- A Guide to Starting a Quarter Midget, Simple steps to starting any quarter midget
- 2011 States Race,My account of Matt racing at the 2011 QMA Region 2 States Race
- 2011 Pumpkin races,Matt racing at the last races of the 2011 season and my attempt at quarter midget racing
- Bike Expo,Riding my bicycle to the 2011 Philly Bike Expo
- My Velodrome Experience, My 2013 experience at the Trexlertown Velodrome.
Quarter midget Part Fatigue
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