For thin-walled structures invariably exposed to thermal and noise environment, their dynamic response is an extreme concern in the design of the component of advanced hypersonic aircraft. To address the problem, three theoretical models are established with three typical graded thermal distributions considered. By introducing the thermal moment, membrane forces and acoustic loadings into the vibration equation of plate, the governing equation is derived and it is solved combined with boundary conditions of the plate, the modal function and velocity compatibility equations at the fluid-structure coupling surface. The accuracy of the theoretical predictions is checked against finite element results with good agreement achieved. The results show that not the physical parameters with variation of temperature but the thermal moments and membrane forces, cause the buckling phenomenon. It is noted that buckling phenomenon occurs not only in uniform temperature field but also in graded temperature distribution filed. The mechanism analysis about modal snap-through and losing phenomenon indicates that thermoacoustic loadings will affect the stiffness matrix and mass matrix of structure. With the increase of temperature, the lower modes of the plate are lost, the higher modes appear in advance, and the losing phenomenon occurs in accordance with the order.

Following the 19th-century language debates on the language of science and higher education, this paper follows three Polish texts from the middle of the century dealing with the Galician school and university system. These dispositives of language discourse, defined here as an outcome of the transformations at the nexus of hegemony, linguistic theories and the remainders of the Republic of Letters ideology, are analysed concerning the positioning of the Polish language as confronted with German and Ruthenian/Ukrainian, as well as the political implications resulting from the perceived misbalance. Given the political context of Habsburg neoabsolutism’s hierarchical understanding of languages and its application, the authors deal with both deconstructing the underlying ideology concerning German, and sustain it regarding Ruthenian