Modern dynamo electric machinery

Title : Producing Fiber Flax Using Modern Machinery and Field Retting

approv Steven J. Knapp Fiber flax (Linum usitatissimum L.) production in the Willamette Valley ended in Oregon around 1957 before newly developed technology and fiber cultivars were available. The purpose of this research was to explore the use of modern methods and new cultivars. Field studies were conducted to evaluate cultivars and optimum cultural practices that would produce the highest yi...

Urban Machinery: Inside Modern European Cities (Chapter 1)

Modern Optimization Models and Techniques for Electric Power Systems Operation

This article introduces modern optimization models and solution methods for two fundamental decision making problems in electric power system operations, the optimal power flow (OPF) problem and the unit commitment (UC) problem. The article surveys some of the most recent advances, including global optimization techniques for exact solution of the OPF problem, adaptive robust optimization model...

Power-Electronics Issues of Modern Electric Railway Systems

After de-regulation of the former state-owned railways and severe restructuring of the railway industry in the last 15 years, more innovative vehicle concepts saw the light of the day. Power electronics, already formerly being a pacemaker for progress of traction vehicles, brought forth an utmost standardization of the main drive by means of the IGBT-converter-fed induction motor drive. This is...

The Dynamo and the Computer: An Historical Perspective on the Modern Productivity Paradox

The Dynamo and the Computer: An Historical Perspective on the Modern Productivity Paradox Author(s): Paul A. David Source: The American Economic Review, Vol. 80, No. 2, Papers and Proceedings of the Hundred and Second Annual Meeting of the American Economic Association (May, 1990), pp. 355-361 Published by: American Economic Association Stable URL: http://www.jstor.org/stable/2006600 Accessed: ...