In this project, we aim to detect gas emissions in the decomposition of Dosidicus gigas through low-cost sound monitoring. Quality Control is a set of activities that verify whether the developed product meets the minimum quality requirements and identifies any problems. This research investigates product quality control and health protection. The Humboldt squid (Dosidicus gigas), also called giant squid, is a large cephalopod mollusk abundant on the Peruvian, Mexican, and Chilean coasts. It is a fast-growing invertebrate with a complex nervous system and a well-developed visual system. The nutritional and health properties of the giant squid are of great importance. The squid or giant squid (Dosidicus gigas) is a crucial fishing resource for Peruvians and other surrounding coasts of other countries. It contributes to solving food and nutritional problems, particularly combating chronic malnutrition and childhood chronic anemia. Therefore, this research focuses on analyzing gas emissions during decomposition through low-cost soundproofing.

The behavior of a reusable Starship spacecraft during re-entry into Earth’s upper atmosphere is governed by aerodynamic principles. This study aims to develop a sliding mode controller by constructing a nonlinear dynamic model with three degrees of freedom, considering external perturbations. The methodology involves applying a sliding mode control law to manage vibrations due to air friction, impact pressure on the spacecraft’s front surface, and lateral friction. Simulation results demonstrate that the initial approximation of the spacecraft’s reference and control trajectory achieves stable control behavior and safe re-entry. The controller’s reliability and the stability of the closed-loop system are significantly enhanced, though transient responses vary due to the nonlinearity of re-entry dynamics.