Bratu, MihaiMihaiBratu2017-03-162017-03-162012http://hdl.handle.net/123456789/456Ph.D. Thesis - Scientific coordinator Prof. Dr. Ing. Marcela Muntean, Prof. Dr. Ing. Nicolae EnescuotherComposite materialsNoise reductionPolymersEcological composite materials for noise reductionThesis