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The sale of Texas Instruments DRAMM (dynamic random access memory) business to Micron Technology at once enhances Micron's fiercely focused position as the world leader in memory chips and reinforces TI's fiercely focused position as the world leader in digital signal processors.
The previous developed mathematical models to predict the keyhole parameters in terms of the process factors, namely laser power (LP), welding speed (S) and focused position (F) were used to optimize the welding process.
The analysis considered the effect of beam current (0.7 1.7 mA), beam voltage (40 50 kV), welding speed (150 500 mm/min) and focused position (−20 to 0 mm) on the energy product ((BH max) of welded samples.
The input process parameters such as lamping current (130 160 A), pulse duration (1.5 3 ms), travel speed (50 200 mm/min) and focused position (−2 to −0.5 mm) were selected suitably in order to obtain the desired output, i.e., the magnetic properties of the welded samples.
A laser beam with lamping current, pulse duration, welding speed and focused position of 145 A, 1.5 ms, 125 mm/min and −0.5 mm respectively were identified as the optimal set of laser welding parameters to obtain a welded area with desirable magnetic properties.
Consequently, four process parameters (laser power, wobble frequency, number of rotations within a single laser pulse and focused position) and 5 responses (penetration, width, heat affected zone (HAZ), area of the fusion zone, area of HAZ and hardness) were investigated for spot welding of Ti6Al4V alloy (grade 5) using a design of experiments (DoE) approach.
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Archant, the Norwich-based publisher of more than 130 newspapers and magazines and owner of local channel Mustard TV, is also looking to create dozens of new digitally focused positions as part of the restructure.
And the 10 layoffs were at least partly offset by the creation of six new digitally focused positions.
Thus, the focusing position of streptavidin will move ever further from the positive electrode upon the increase in PA concentration.
Thus, the obtained optimal position with the global maximum may not be the best focusing position.
Before the experiments, the actual CCD focusing position is adjusted on the position of −74.6990 mm.
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