in this paper dynamic analysis (modal-method) of sandwich contructions have been studied. for this purpose a computer program was developed that could analyse the sandwich construction's dynamics. by using the program, one can find the natural frequencies, the normal modes and dynamic response of the free and forced vibrations.by solving few problems in this article, we have illustrated th...

suhrawardi’s logic of the hikmat al-ishraq is basically modal. so to understand his modal logic one first has to know the non-modal part upon which his modal logic is built. in my previous paper ‘suhrawardi on syllogisms’(3) i discussed the former in detail. the present paper is an exposition of his treatment of modal syllogisms. on the basis of some reasonable existential presuppositions and a...

Chapman’s paper, “Planning for Conjunctive Goals,” has been widely acknowledged for its contribution toward understanding the nature of nonlinear (partial-order) planning, and it has been one of the bases of later work by others—but it is not free of problems. This paper addresses some problems involving modal truth and the Modal Truth Criterion (MTC). Our results are as follows: 1. Even though...

Chapman’s paper, “Planning for Conjunctive Goals,” has been widely acknowledged for its contribution toward understanding the nature of nonlinear (partial-order) planning, and it has been one of the bases of later work by others---but it is not free of problems. This paper addresses some problems involving modal truth and the Modal Truth Criterion (MTC). Our results are as follows: Even though ...

The significance of full vectorial pulse propagation through emerging waveguides has not been investigated. Here we report the development of a generalised vectorial model of nonlinear pulse propagation due to the effects of Stimulated Raman Scattering (SRS) in optical waveguides. Unlike standard models, this model does not use the weak guidance approximation, and thus accurately models the mod...

In the context of musical acoustics, physical models of musical instruments have to be more and more sophisticated. For string models, realism is obtained by taking into account tension, flexion, shear, rotation and coupling phenomena but also nonlinear effects due to large displacements. The sound synthesis modal method is extended to the nonlinear case using Volterra series. The inverse probl...