Internal shrinkage crack in a 10 t water-cooled steel ingot with a large height-to-diameter ratio

Simulation of Convection and Macrosegregation in a Large Steel Ingot

segregates. Although good agreement with experiments was MACROSEGREGATION in large steel ingots is one achieved, the model relied on many approximations (such of the most well-known and now classical problems in the as estimating the flow velocities). It should also be menfield of solidification and casting.[1] It arises from the relative tioned that many models have appeared in the literature ...

Effects of Height to Diameter Ratio and Aeration rate on Liquid Mixing and Hydrodynamic Properties in a Bubble Column

"> Experimental measurements of overall gas holdup (εg<span style="font-family: TimesNewRomanPS-ItalicMT; font-size: 10pt; c...

Changes in stem diameter of herbaceous and woody plants as a measure of internal water balance

a comparison of teachers and supervisors, with respect to teacher efficacy and reflection

supervisors play an undeniable role in training teachers, before starting their professional experience by preparing them, at the initial years of their teaching by checking their work within the proper framework, and later on during their teaching by assessing their progress. but surprisingly, exploring their attributes, professional demands, and qualifications has remained a neglected theme i...

‏‎a 10-bit 50-ms/s parallel successive-approximation analog-to-digital converter‎‏

‏‎applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...