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Considerations For Manufacturing Bio-Based Plastic Products, Kurt A. Rosentrater, Andrew W. Otieno
Considerations For Manufacturing Bio-Based Plastic Products, Kurt A. Rosentrater, Andrew W. Otieno
Kurt A. Rosentrater
One engine that drives the United States’ economic growth is an ever-increasing demand for manufactured products, both at home and abroad. This increase has created a major concern for the environment in terms of disposing used goods and ensuring that these products are safe. As environmental concerns grow, however, renewable resources are gaining increasing attention, especially as industrial ecology and product biodegradability gain importance. Added to this, biological materials are increasingly being utilized to replace traditional materials in manufacturing. To aid both educators as well as researchers, this paper examines several considerations that are essential for manufacturing plastic products that …
Non-Unity Active Pfc Methods For Filter Size Optimization, Yongxiang Chen, Jonathan W. Kimball, Philip T. Krein
Non-Unity Active Pfc Methods For Filter Size Optimization, Yongxiang Chen, Jonathan W. Kimball, Philip T. Krein
Electrical and Computer Engineering Faculty Research & Creative Works
Active power factor correction seeks to obtain unity power factor and sinusoidal line currents. Optimized nonsinusoidal line currents reduce filter capacitor requirements with a nonunity target power factor. Implementation methods are presented that permit reduced power factor to be traded off against filter size in a nearly optimum manner. A simple waveform shape can reduce filter component size by about 40% in active PFC converters at the same level of complexity as in conventional PFC designs while yielding power factor as high as 0.9. Two approximate methods to generate appropriate shapes are presented. They offer direct practical implementation of nonunity …
Manufacturing Interoperability, Steven Ray, Al Jones
Manufacturing Interoperability, Steven Ray, Al Jones
Steven R Ray
As manufacturing and commerce become ever more global, companies are dependent increasingly upon the efficient and effective sharing of information with their partners, wherever they may be. Leading manufacturers perform this sharing with computers, which must therefore have the required software to encode and decode the associated electronic transmissions. Because no single company can dictate that all its partners use the same software, standards for how the information is represented become critical for error-free transmission and translation. The terms interoperability and integration are frequently used to refer to this error-free transmission and translation. This paper summarizes two projects underway at …