Abstract: A seat assembly may include a seatback frame, a primary carrier, an airflow duct, and a plurality of airflow outlets. The primary carrier may be connected to the seatback frame. The airflow duct may be defined at least partially by the primary carrier. The plurality of airflow outlets may extend through the primary carrier to an external surface and may be in fluid communication with the airflow duct.

Abstract: A seat assembly may include a seatback frame, a primary carrier, an airflow duct, and a plurality of airflow outlets. The primary carrier may be connected to the seatback frame. The airflow duct may be defined at least partially by the primary carrier. The plurality of airflow outlets may extend through the primary carrier to an external surface and may be in fluid communication with the airflow duct.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for processing data in a data processing system to identify candidate modifications to physical features of a mechanical device. One of the methods includes converting a representation of the mechanical device into a representation of surface elements. The method includes that based on the representation of the surface elements, computing an effect to evaluation criteria of each of a design variable. The method includes converting the design variables and the computed effect into component vectors. The method includes computing a composite design vector for the evaluation criteria using the component vectors, with the composite design vector comprising a combination of design variable settings to improve the evaluation criteria, and specifying a vector in a design variable space. The method also includes generating a physical modification specification for the mechanical device based on the composite design vector.