ABSTRACT A simulation of a pilot plant delayed coking reactor was performed using an in-house computational fluid dynamics (CFD) code.The reactor was modeled as a three-phase dynamic system where the coke is the porous solid phase, the vacuum residue the liquid phase and the distillable product the gas phase.Equations of continuity, momentum, and e
southwestern aztec rug Abstract Background A relative survival approach is often used in population-based cancer studies, where other cause (or expected) mortality is assumed to be the same as the mortality in the general population, given a specific covariate pattern.The population mortality is assumed to be known (fixed), i.e.measured without unc
Purpose: This study aimed to predict the composition of urolithiasis using deep learning from urinary stone images.Materials and Methods: We classified 1,332 stones into 31 classes according to the stone composition.The top 4 classes with a frequency of 110 or more (class 1: calcium oxalate monohydrate rawlings fungo [COM] 100%, class 2: COM 80%+st
In 3701129802670 order to reveal the vibration characteristics of fault rotor systems caused by the bearing misalignment, the expression of the rotor deflection displacement under the bearing misalignment was derived through the coordinate transformation relation.On this basis, the dynamic model of the double disk rotor system with the coupled bear