mass loss

mass loss

The loss of mass by a star during its evolution by one or more processes. Mass is lost at a high rate in bipolar outflows during the formation of a star, and as a T Tauri wind from some protostars. Mass is known to flow slowly into space from many stars, especially giants, in the form of a stellar wind. Mass can also be ejected as the shell of a planetary nebula or in a violent supernova explosion. Mass transfer can occur in close binary stars, and mass can be lost from the binary in a nova explosion.
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The Figure 15, shows the mass loss vssliding distance for AA713.0/MWCNT at different loads.
Compared with standard HVOF tungsten carbide coatings, Xaloy MPX technology exhibits 61% less mass loss in ASTM G65 abrasion testing, 18% less mass loss in ASTM G77 sliding-wear testing, and 8.5% greater bond strength in ASTM C633 bond testing, Nordson reports.
The GA3 reduced fruit colour development and enhanced mass loss (%); Spm reduced juice mass (%) and increased rind mass (%).
The results showed that all the samples had great mass loss when abraded and evaluated through ASTM D 4966 test method with Martindale tester.
Diaspore particles (100-230 mesh) were heated in a furnace at different temperatures for 1 hour to find mass loss and bulk density whereas about 2 cm diameter lumps were selected to find the density.
Glacial earthquakes have increased sevenfold in the last two decades and have been migrating north, suggesting an increase in rates of mass loss from the ice sheet through calving activity.
Robotic technology with ever-improving artificial intelligence, sensors and other capabilities inspires awe, yet many workers fear a mass loss of jobs.
Mass loss (or retained) after oven aging, expressed as a percentage of the unaged mass, was determined on specimens of 37-mm diameter and 0.8-1.0-mm thickness.
The water-column mass loss due to the tail-leakage effect is taken into account in the formulae with a holdup coefficient, which represents the cross-sectional area in the pipe occupied by the air.
Most studies agree that a larger erosion mass loss could be observed from the presence of abrasive particles [10].