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Spectrum SF7 November � 2002

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Lacey R., The year 1000. What life was like at the turn of the first millennium. an Englishman's world � 1999

"The Year 1000 is a vivid and surprising portrait of life in England a thousand years ago. A world that already knew brain surgeons and property developers and, yes, even the occasional gossip columnist. Uncovering such wonderfully unexpected details, authors Robert Lacey and Danny Danziger bring this distant world closer than it has ever been before. How did people survive without sugar? How did monks communicate if they were not allowed to speak? Why was July called "the hungry month"? The Year 1000 answers these questions and reveals such secrets as the recipe for a medieval form of Viagra and a hallucinogenic PDF treat called "crazy bread."In the spirit of modern investigative journalism, Lacey and Danziger interviewed the top historians and archaeologists in the field. Their research led them to an ancient and little-known document of the period, the Julius Work Calendar, a sharply observed guide that takes us back in time to a charming and very human world of kings and revelers, saints and slave laborers, lingering paganism and profound Christian faith. This exuberant and informative book concludes as the shadow of the millennium descends across England and Christendom. While prophets of doom predict the end of the world, A PDF.D. 1000 sees the arrival of such bewildering concepts as infinity and zero, along with the abacus-the medieval calculating machine. These are portents of the future, and The Year 1000 finishes by examining the human and social ingredients that were to make for success and achievement in the next thousand years."

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Electrical Variable-Speed Drives. 2nd International Conference on. 25-27 September 1979. Conference Publication Number 179 � 1979

��: Realization of a bilinear observer of the induction machine / A. Bellini, G. Figalli and G. Ulivi; Practical phase control of linear induction motors / S.L. Benn; A variable speed drive using a permanent magnet A.C. motor / K.J. Binns, M.A. Jabbar, G.E. Parry and S.W. Russell; Low-cost, reluctance drive system for low power, low speed application / H.R. Bolton and D.A.G. Pedder; An inertia load simulator for traction systems / P. Bowler and J.C. Marques dos Santos; Kramer-type drives with controlled flywheeling applied to the slip-energy recovery bridge / J.E. Brown, W. Drury and B.L. Jones; Eddy-current coupling with a rotating field coil / H.D.L. Clark; Multiaxle A.C. traction drives using thyristor convertors / S.B. Dewan and G.R. Slemon; A single to two phase frequency and voltage converter suitable for driving servo motor / N.C. Enslin; Some design aspects of thyristor choppers for use in rail traction / W. Farrer and P.D. McLoughlin; Machine-commutated inverter drives of large power / B. Feltbower and H. Waldinger; Variable frequency traction drive with inverter fed induction motor for rapid transit electric trains / S. Giubergia, C. Rossi and E. Tortello; DC induction motor system with self-oscillating polyphase converter / K. Harada, M. Nagao, Y. Yoshida and T. Goto; Microprocessor control of induction motors employing field coordinates / R. Gabriel, W. Leonhard and C. Nordby; Variable speed drives for pumps in the water industry / J.L. Higginson; 25 kVA precision AC drives / R.L. Hodkinson; Induction motor drive using new digital sine-wave PWM system / J.A. Houldsworth and F.J.Burgum; A realization example of a microprocessor-driven P.W.M. transistor invertor / L.C.P. Humblet, F.G.G. De Buck, B. Verbeke and P De Valck; A novel linear motor stabilisation control system / D.R. James; The eddy current coupling � The simple variable speed drive / H.D. Keating; Torque oscillations in traction drives with current-fed asynchronous machines / W. Lienau; Closed-loop control of linear reluctance motors for traction applications / P. Lindon, G. Williams, P. D. Luke, A.M. El-Antably and J.D. Edwards; Inverter-synchronous machine parameters / D. E. Macpherson and J. Shepherd; Low-cost electronic speed controller for small induction motors / W. Matley, K.B. Clarke and P. Marshall; A linear motor using claw stators and permanent magnet moving member / G. W. McLean, H. Al-Abadi and E.F. Taylor; Speed control of electrical pumps in aircraft and military vehicle applications / J.R. Melling; Controlled-slip operation of an induction motor with optimum PWM wave forms / J.M.D. Murphy, R.G. Hoft and L.S. Howard; Counter electromotive force-commutated type high-frequency chopper-fed DC motor variable-speed drive and improved analog/digital hybrid speed control system by phase-locked loop techniques / M. Nakaoka and T. Maruhashi; A new current-source P.W.M. inverter for induction motor drive system / Y. Kouya, T. Matsumoto, T. Mochizuki and Y. Tanaka; A comparison of synchronous motors fed by an inverter supply / G.E. Parry and K.J. Overshott; Samarium cobalt rare earth magnets in new motor technology / R.J. Lacey and G.R. Horner; Linear electric motor propulsion systems for high-speed ground transport / C.J. Peachey and B. E. Morgan; Stepped speed-change: a simple, cheap and reliable compromise / G.H. Rawcliffe; A regenerative braking system for D.C. railway traction / J.M. W. Whiting; Application and experience of electronic protection for DC thyristor drives / D. Richards; Highly reliable variable speed control with AC-slipring motors for heavy duty mill and harbour cranes / R. Zonderman and T.A. Bolt; Microprocessor controlled inverter-fed synchronous motor drive / W. Richter; Brushless D.C. motor with variable speed and synchronous control / S.W. Russell and R.L. Fyfe; Development of an experimental inverter-induction traction use inverter-induction motor drive for railway / R.B. Siddall; Synchronous motor, variable speed, A.C. drive system / A.R. Stocken; Measurement of speed, position and acceleration of electrical drives in microprocessor-based control systems / G.A. Tendulkar; Microprocessor controlled inductor motor / R.D. Thornton; Time-optimal control of convertor-fed D.C.-Drives / V. T�r�k and W. Hibner; A simple and reliable four quadrant variable frequency AC drive for industrial application up to 50 kW / J.D. van Wyk and H.R. Holtz

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