Soil disinfestation by steam is an agricultural technique that is nowadays attracting growing interest for its low ecological impact and could therefore become a viable alternative to methyl bromide, that will soon banned. The current main limitation of this treatment is due to the cost of the fuel used to generate the steam. In this paper, we present a control strategy that allows to minimize ...

Factors leading humans to shift attention away from danger cues remain poorly understood. Two laboratory experiments reported here show that context interacts with learning experiences to shape attention avoidance of mild danger cues. The first experiment exposed 18 participants to contextual threat of electric shock. Attention allocation to mild danger cues was then assessed with the dot-probe...

The way in which electric power depends on the topology of circuits with mixed voltage and current sources is examined. The power flowing in any steady-state DC circuit is shown to depend on a minimal set of key variables called fundamental node voltages and fundamental edge currents. Every steady-state DC circuit can be decomposed into a voltage controlled subcircuit and a current controlled s...

This paper presents a new single-wire autonomous current-share paralleling of current-mode-controlled dc power supplies. The proposed control scheme makes use of the nature of fast response of the inner current loop and the share bus injected signal to improve the response of the power supplies. It reduces the unbalance of current distribution during the transient state and avoids the fault ala...

We present a mechanism for the maintenance of streams based on the Scheme facility of call-with-current-continuation or call/cc. The mechanism supports stream sharing and has overhead cost which is independent of top-level program parameters if call/cc is implemented in heap-based systems. It is shown how the control structure of call/cc can save programming eeort in cases where multiple proced...

Considerable research has examined the effects of giving trainees control over their learning (Steinberg, 1977, 1989; Williams, 1993). The most consistent finding of this research has been that trainees do not make good instructional use of the control they are given. Yet, today’s technologically based training systems often provide individuals with significant control over their learning (Brow...

Abstract State Machines (asms) offer a formalism for describing state transitions over relational structures. This makes them promising for modeling system features such as access control, especially in an environment where the policy’s outcome depends on the evolving state of the system. The current notions of modularity for asms, however, provide insufficiently strong guarantees of consistenc...

Structural coupling is the disturbance to the aircraft’s inertial sensors caused by the flexibility in the airframe, and is particularly problematic for modern combat aircraft. The current solution uses a series of notch filters to remove the structural frequencies, but these introduce significant phase delays into the control loop. This paper presents some experimental and theoretical results ...

Many essential appliances like air conditioners and refrigerators which run in our offices and homes draw a heavy starting current. When the main power resumes or turned ‘ON’ suddenly, all the loads are switched ‘ON’ at a time and a very heavy initial current is drawn from mains. The current drawn is so high that other equipments are affected. The valuable home appliances can be ruined for such...