One of the most difficulties in studying SSE with grooved melting
zone is that it is hard to observe the melting
state during extrusion.
rate is controlled by the shear stress in the film near the barrel wall, the barrel temperature, the thermal and viscous properties of the polymer, and the screw design.
The phase transformation that occurs during the melting
of solidified metal is often more costly than keeping the material warm enough to remain liquid, according to Place.
In vertical CFZM in the melting
chamber initial polycrystalline silicon bar is vertically fixed on the upper rod.
One-step, real-time RT-PCR with melting
curve analysis was performed in an ABI 7500 system (Applied Biosystems, Foster City, CA, USA).
At some point in the sea ice's decline--maybe even a point that's already been passed--changes in albedo begin to accelerate the rate of melting
. Taking into account Arctic sea-ice declines of the past 4 years and those measured since the late 1970s, the ice coverage has been diminishing at a rate of 8 percent per decade.
mechanism is very difficult to model, particularly as it applies to predicting heat transfer within the rotating melt pool, spatial segregation of the melt pool from the solid pellet plug, and breakup and mixing of the solid pellet plug.
The chocolate kisses should melt in your hand, because chocolate's melting
point is lower than the average human body temperature: 37[degrees]C (98.6[degrees]F),
Empiricists submitted evidence that the melting
pot wasn't working as predicted and concluded, as did Nathan Glazer and Daniel Patrick Moynihan in Beyond the Melting
Pot (1963), "The point about the melting
pot...is that it did not happen." Other critics rejected the second corollary of the metaphor - that natives were changed by it, too - and saw no reason that native Americans should give up any part of their cultural attributes to "melt" into the alloy.
Additionally, when transferring metal from a melting
furnace into a ladle or holder, care must be taken to avoid surface dross entrainment or bottom sludge.
#3650652, March 21, 1972), which increased melting
area by using a longer lead and keeping the primary channel a constant width, instead of narrowing it as in the Maillefer, NRM, and Uniroyal designs.
The researchers repeatedly raised the pressure inside the cell and determined sodium's melting
temperature at each of these pressures by heating the material.