Although the refractoriness of the human His-Purkinje system (HPS) during constant-cycle length pacing appears to be closely related to the cycle length of the stimulation, the mode of adaptation of this refractoriness with sudden rate acceleration is not well understood. A systematic evaluation of this adaptation was performed in 14 patients with normal QRS durations and HV intervals referred ...

In this paper the modelling of a double clutch transmission with an appropriate controller is presented. An accordant library for modelling different levels of detail and the use of defined state signals are introduced. Furthermore, the control of the transmission with the simulation of shifting cycles is discussed. By varying the driver models it is possible to drive miscellaneous drive and sh...

Cortical neurons may use a rate code or a spike time code (for review see Shadlen & Newsome (1998)).Aspike-time code is only possible when neural discharge is reliable. The discharge of neurons driven by a constant drive is unreliable, whereas it is reliable when driven by a random fluctuating drive (Mainen & Sejnowski (1995); Cecchi et al (2000)). A neuron driven by a sinusoidal current has a ...

Plug-in hybrid electric vehicles (PHEVs) use grid electricity as well as on-board gasoline for motive force. These multiple energy sources make prediction of PHEV energy consumption challenging and also complicate evaluation of their environmental impacts. This paper introduces a novel PHEV energy consumption modeling approach and compares it to a second approach from the literature, each using...

Herein is described an environmental and life cycle cost (LCC) analysis of one switched reluctance motor (SRM) drive and two inverter-fed induction motor (IM) drives. The two types of drives are compared based on critical reasoning, and European Commission (EC) Regulation 640/2009 is considered. Environmental impact and LCC were evaluated according the Methodology for the Ecodesign of Energy-Us...

Fault tolerance and reliability of distributed systems is often achieved through checkpoint / restart mechanisms. Checkpointing frequency and restart delay crucially depend on data throughput and access performance of the storage medium. In this paper we discuss the opportunity to achieve subsecond checkpointing frequencies and restart delays by substituting magnetic hard disk storage with soli...