Multiresponse Optimization of Selective Laser Melting Parameters for the Ni-Cr-Al-Ti-Based Superalloy Using Gray Relational Analysis.

The selective laser melting technology is of great interest in the aerospace industry since it allows the implementation of more complex part geometries compared to the traditional technologies. This paper presents the results of studies to determine the optimal technological parameters for scanning a Ni-Cr-Al-Ti-based superalloy. However, due to a large number of factors affecting the quality of the parts obtained by selective laser melting technology, the optimization of the technological parameters of the scanning is a difficult task.

[CFD simulation study of aerodynamics in nasal cavity in a case of septal perforation].

Perforation of the nasal septum remains an actual problem. The success of surgical closure of perforation of the nasal septum depends not only on the surgeon's skill, but also on the degree of disturbance of the nasal cavity physiology. Traditionally, CFD studies of nasal septal perforations are dedicated to the analysis of changes in speed value of the inhaled air depending on the size and localization of perforation of the nasal septum.