The Sound Attenuation Coefficient Optimization in Case of a Three Parameter Impedance Model for a Rectangular 3D Straight Lined Duct of Finite Dimensions Journal title: INCAS BULLETIN Authors: BALINT Stefan , SZABO Robert Subject(s):
Unexpected Properties of the Propagations Generated by Some Time Harmonic Perturbations in a 2D Infinitely Long Straight Duct Satisfying Different Types of Boundary Conditions Journal title: INCAS BULLETIN Authors: Agneta M. BALINT, Stefan BALINT Subject(s):
