This paper compares the performance of different control techniques applied to a high-performance brushless DC (BLDC) motor. The first controller is classical proportional integral (PI) controller. In contrast, second one based on adaptive neuro-fuzzy inference systems (proportional integral-adaptive system (PI-ANFIS) and particle swarm optimization-proportional (PSO-PI-ANFIS)). objective regul...

For the precise simulation performance, accuracy of fuel cell modeling is important. Therefore, this paper presents a developed optimization method called Chaos Game Optimization Algorithm (CGO). The provides ability to accurately model proton exchange membrane (PEMFC). tested by comparing results with practical measurements several standard PEMFCs such as Ballard Mark V, AVISTA SR-12.5 kW, and...

Bartlett (1932) gave subjects a prose passage and showed how recall dropped when they were tested repeatedly. Ballard (1913), using poetry, and Erdelyi and Becker (1974), using pictures, reported improvements in performance (or hypermnesia) over repeated testing. We investigated two likely factors leading to the discrepant results: the type of material and the interval between tests. The primar...

The artificial rabbits optimization (ARO) algorithm is proposed in this article to find the optimum values for uncertain parameters proton exchange membrane fuel cell (PEMFC) model. voltage–current polarization curve of PEMFC nonlinear, and model used paper describe it Mann’s model, which has seven parameters. sum square errors (SSE) between ARO-based estimated voltages measured defines objecti...

1997 ii Acknowledgments I thank my advisor, Dana Ballard, for his unwavering patience, support, and assistance throughout my eeorts on this work. As a constant source of enthusiasm, ideas, and insight, he allowed me to reach goals that would have been unattainable without his guidance. In addition, his willingness to read and comment on a seemingly endless succession of drafts of this document ...

Early eye-tracking experiments required participants to stabilize their heads while looking at two-dimensional stimuli in a room with carefully controlled lighting. Many of the field’s standards for collecting and processing data reflect this history of stationary, laboratory-based eyetracking. Over the last two decades, the cost and quality of wearable eye-tracking systems has improved dramati...

This paper addresses current issues in ethics, public policy and public policy education. I have written about ethical issues in public policy research (Ballard and James) and I have developed codes of ethics in two organizational settings. Yet, this topic is a difficult one. To most public servants, "ethics" is either an abstract topic or one familiar to us only because of highly visible event...

To the Memory of Ednd. Eyre, Wm. Baillie, Esqrs., 'Die Revd. Jervas Bellamy, Mefsrs. Jenks, Reevely, Law, Coates, Nalicourt, Jebb, Torraino, E. Page, S. Page, Grub, Street, Harod, P. Johnstone, Ballard, N. Drake, Carse, Knapton, Gosling, Dod, Dalrymple, Captains Clayton, Buchanan, Witherington, Lieuts. Bishop, Hays, Blagg, Simpson, J. Bellamy, Ensigns Paccard, Scott, Hastings, C. Wedderburn, Du...

In this work the optimization-based, integrated concurrent design method is applied to the modelling, analysis, and design of a transportation fuel cell system. A general optimal design model considering both functional performance and production costs is first introduced. Using the Ballard Mark V Transit Bus fuel cell system as an example, the study explores the intrinsic relations among vario...

A. Emaus1,10, S. Espetvedt1, M.B. Veierød2, R. Ballard-Barbash3, A.-S. Furberg4,5, P.T. Ellison6, G. Jasienska7, A. Hjartåker8 and I. Thune1,9 Department of Oncology, Ullevål University Hospital, 0407 Oslo, Norway; Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway; Applied Research Program, Division of Cancer Control and Population Sciences, Nati...