Sensors for triggering practical Functional Electrical Stimulation walking systems

Functional Electrical Stimulation (FES) techniques have shown significant improvement in mobility and functionality to many patients with pathological gait resulting from upper motor neurological injuries such as stroke, Multiple Sclerosis (MS), etc. Effective functioning of FES walking systems relies on accurate and reliable detection of gait events (i.e heel rise and heel strike) which depends on the type of sensors and the detection algorithm used

Currents, Vol.13, No.1 (Sept.1994)

President Notes Achievements--Lapping on Board--USM Refitted for New Year--New Husky Hall of Fame Inductees--1994-1995 Faculty Concert Series--Campaign for Rare Maps Meets Goal--Record Grantshttps://digitalcommons.usm.maine.edu/currents/1056/thumbnail.jp

Currents, Vol.18, No.7 (Apr.2000)

Retention Study Issues--Chrysler Donates Truck; Students to Develop Solar Powered Vehicle--A New Initiative--Four All-Time Records-- New College --Civil Rights Awareness Days--New Speakers Guide-- Molecular Graphics…--Community Art--USM Show on Portland Fort Wins National Awardhttps://digitalcommons.usm.maine.edu/currents/1042/thumbnail.jp

Currents, Vol.15, No.4 (Dec.1996)

New Positions for Academic Support--USM in the News--Russian Capitalism Flouts the Rule of Law--USM Productionshttps://digitalcommons.usm.maine.edu/currents/1003/thumbnail.jp

Currents, Vol.16, No.6 (April 1998)

Field House Opens--Bold Eco-Drama--Center Aids Rural Small Businesses--Econ Ph.D Pilots--LAC & CMTC Prepare Computer Workers--Congratulations!https://digitalcommons.usm.maine.edu/currents/1028/thumbnail.jp

Currents, Vol.18, No.5 (Feb.2000)

Capital Campaign Kickoff: 21st Century Campaign for Excellence --Convocation on Religion and the Human Experience --Grant to LAC Archive Collection--$100,000 endowment for scholarships at LAC--February: Black History Month--Law School welcomes...--NASA Grant--USM Grauate addresses state of American Youth & Public Schoolinghttps://digitalcommons.usm.maine.edu/currents/1040/thumbnail.jp

Currents (April 18, 1996)

USM in the 21st Century: Building a Better University During a Time of Challenge - An Action Plan for 1996-2001https://digitalcommons.usm.maine.edu/currents/1053/thumbnail.jp

A case study of the design related aspects of the introduction of a new turbocharger

The design related aspects of the introduction of a new turbocharger - the Napier NA355. Napier Turbochargers Ltd. manufacture a range of turbochargers suitable for most medium and slow speed diesel engines above about 1000 hp. This work describes the many and varied aspects associated with the design of a new turbocharger during the early 1980's. The company was producing two similarly sized products designated the SA105 and the NA350, intended for engines developing about 3000 hp. A replacement for these two turbochargers was required. The demands of the engines in the marketplace were determined together with the extractable performance of the major competitor's products. The performance levels of the two Napier models was examined, and was found wanting, particularly with respect to the compressor efficiency. Also the mechanical limitations of the two models were less than desirable. A number of technical proposals were considered, with the aim of deciding how best the needed improvements could be introduced. The SA 105 offered more items that could be utilised in a new turbocharger, although both compressor and turbine required improvement. It was necessary to avoid lengthy and expensive development wherever possible, therefore only proven technology was employed. The major casings and rotor forgings were to be retained, if possible, due to the lcngthy, expensive, and often troublesome procurement cycles. Only those components that had a lack of performance or had a mechanical limitation would definitely be replaced. A new backswept compressor and an improved turbine stage were designed. A new rotor assembly incorporating the new impeller, together with many detail improvements, was also designed. The work describes the analytical techniques that were used to carry out these designs. The turbocharger was rig tested, as an open cycle gas turbine, to simulate service duty and environment. The first turbocharger was built and tested with encouraging results. A satisfactory number of turbochargers have been manufactured and are now in service. Although some problems occurred that necessitated modifications the basic concept was clearly satisfactory. The NA355 can be considered as a particularly successful turbocharger

Currents (September 20, 1995)

The Comprehensive Public University: USM in the 21st Century - A Proposalhttps://digitalcommons.usm.maine.edu/currents/1045/thumbnail.jp