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An MCM's increased throughput and dense circuitry can easily result in failure if the board contains \hot spots". Therefore, an accurate thermal model of an MCM was needed in the development o f a new placement algorithm designed to consider both total net length and heat constraints. This algorithm uses a combination of simulated evolution and simulated(More)
In the first experiment, weanling rats were fed a grain ration or one of three semipurified diets high in fat, sucrose, or cornstarch. Rats in each dietary group were divided into two subgroups, one of which drank distilled deionized water whereas the other group drank 2% NaCl solution. Blood pressure and sodium intake were individually measured for each(More)
Typically, placement algorithms attempt to minimize the total net length of a printed circuit board (PCB). However, an MCM's increased throughput and dense circuitry can easily result in failure if the board contains “hot spots”. Therefore, an accurate thermal model of an MCM was needed in the development of a new placement algorithm designed to(More)
This paper presents an activation scheme for use with Hopfield neural network algorithms that guarantees a valid solution for a particular category of problems. The technique monitors the appropriate neurons and heuristically controls their activation function. As a result it has been possible to eliminate several constraint terms from the energy function(More)
Upon parturition, dams were fed high fat or high carbohydrate diets to which 1, 10, and 30 ppm of Aroclor 1254 were added to study the effect of diet on fat and PCB accumulation in nursing pups. The percentage of body fat in the carcasses of 0, 8, and 16 day old pups ranged from 2.2 to 18.2% and from 1.2 to 12.0% for animals suckled by dams fed high fat and(More)
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