In this article, an imperfect vendor–buyer inventory system with stochastic demand, process quality control and learning in production is investigated. It is assumed that there are learning in production and investment for process quality improvement at the vendor’s end, and lot-size dependent lead-time at the buyer’s end. The lead-time for the first batch and those for the rest of the batches ...

This paper describes a cost model developed to assess the cost ramifications of the transition from tinlead to lead-free electronic parts. All tin-lead, all lead-free and mixed assembly approaches are considered. The model makes basic assumptions of a fixed generic set of applications, incorporates a cost of plan development, and includes the costs of reprocessing tin lead to lead free and vice...

0 7 4 0 7 4 5 9 / 0 1 / $ 1 0 . 0 0 © 2 0 0 1 I E E E crashing. This problem lends itself to further exploration of fundamental mechanisms and concepts such as time-out, multicast, consensus, and failure detector. We will survey recent theoretical results of studies related to agreement problems and show how system engineers can use this information to gain deeper insight into the challenges th...

( ) Design of a cost-effecti®e and highly controllable heat-exchanger network HEN has drawn a great deal of attention for years. One of the key issues in such a design is how to effecti®ely minimize undesirable disturbance propagation in a network with minimum cost increment. Design options in this regard include the deri®ation of a superior network structure and the selection of bypasses assoc...

UNLABELLED Uncontrollable, compared with controllable, painful stimulation can lead to increased pain perception and activation in pain-processing brain regions, but it is currently unknown which brain areas mediate this effect. When pain is controllable, the lateral prefrontal cortex (PFC) seems to inhibit pain processing, although it is unclear how this is achieved. Using fMRI in healthy volu...

Our laboratory was interested in epidemiological and toxicological findings from aircraft-assisted pilot suicides. Between 1993-2002 there were 3,648 fatal aviation accidents. The NTSB determined that 16 were aircraft-assisted suicides; 15 from intentional crashing of an aircraft and 1 from exiting the aircraft while in-flight. All pilots involved in these aircraft-assisted suicides were male, ...

materials exhibit significant creep behavior at temperatures above 40% of their absolute melt temperature. lead, tin and their alloys are such materials which experience significant creep behavior in room temperature. one of the most important applications of the tin-lead alloys is soldering electronic circuits in electronic industry, and for lead are isolation walls and wet batteries. room tem...

We concentrate on the design of a FIR lter for a fast transform based sinusoidal sound synthesis engine using linear programming and the construction of controller modules that emulate the behavior of contemporary and vintage commercial synthesizers or synthesis techniques. We will show that it is possible to create an entire highly controllable (playable) synthesis framework on top of the tran...