Real-time control strategies and their performance related to the optimal control trajectories for a diesel-electric powertrain in transient operation are studied. The considered transients are steps from idle to target power. A non-linear four state-three input mean value engine model, incorporating the important turbocharger dynamics, is used for this study. The strategies are implemented usi...

IN August GOLFDOM I discussed the pros and cons of ammonium sulphate as a weed-control agent, while the importance of proper fertilization and management of turf were stressed in the September number from the weed control angle. While it is vital that the greenkeeper be thoroughly versed in both the theory and practice of the above phases of turf maintenance, nevertheless, in themselves, they d...

Peer-to-peer optimistic replication strategies provide improved functionality over traditional client-server models by enabling any-to-any communication. This is especially useful in environments with common network partitions, such as mobile environments, in which communicating with a closely connected peer can be cheaper than communicating with a distant, weakly connected server. However, mos...

A quasi-independence result holds for the go-back-n automatic repeat request (ARQ) protocol and the sliding window ow control protocol if packet errors are independent. The result is independent of the magnitude of the packet error probability or the cost of an error. A parallel result for the selective repeat ARQ protocol, however, does not appear to hold.

The postharvest phase has been consideredan environment for successful application of biological control agents (BCAs). However, the interactions between fungal pathogen, host (fruit), and antagonist are influenced by several parameters such as temperature, oxidative stresses, oxygen composition and water activity that could determine the success of biocontrol. Knowledge of the modes of action ...

We consider the Selective Harmonic Modulation (SHM) problem, consisting in design of a staircase control signal with some prescribed frequency components. In this work, we propose novel methodology to address SHM as an optimal problem which admissible controls are piecewise constant functions, taking values only given finite set. order fulfill constraint, introduce cost functional affine penali...

The notion that selective attention is compromised in older adults as a result of impaired inhibitory control is well established. Yet it is primarily based on empirical findings covering the visual modality. Auditory and especially, cross-modal selective attention are remarkably underexposed in the literature on aging. In the past 5 years, we have attempted to fill these voids by investigating...