[EN] In a passive lossy acoustical system, sum rules derived from passivity explicitly relate the broadband response to the spatial dimension of the system, which provide important design criteria as well. In this work, ...
[EN] Passive metamaterials provide efficient solutions for sound absorption in the low-frequency regime with deep subwavelength dimensions. They have been extensively applied in unidimensional reciprocal problems considering ...
[EN] The difference between socio-economic systems is an important factor in the diversity of urban form. M. R. G. Conzen (1960) established a framework for urban morphology in the context of a British social system and ...