Some Modern Problems in Structural Engineering Dynamics

Some modern responsa on medico-moral problems.

Having written and lectured extensively on Jewish medical ethics, I often receive personal as well as public enquiries for guidance in this field, in addition to fairly frequent requests for articles. Some of my responses have been featured in virtually every issue of L’eylah, the magazine published twice a year by my Office since the Winter 1975/76, and continued in association with Jews’ Coll...

Large - Scale Eigenvalue Problems in Structural Dynamics

On Some Epistemological Problems of Software Engineering

The paper addresses some misconceptions of Software Engineering, requirements analysis and modelling in particular, due to underlying epistemological flaws., e.g. the believe that the system analyst's task be simlar to that of a natural scientist's. The fundamental issues, constitution of objects and signs, conceptualization and definability, are discussed. It comes out that the paradoxical sit...

A Solution Method for Some Nonlinear Eigen-problems in Structural Dynamics

Frequency-dependent matrices in structural dynamics result in a non-linear eigenualue problem The acluantage of frequency-dependent matrices is that the order is usually smaller for comparable accuracy of the eigenparameters of a given system This paper presents a method for solving non-linear eigenvalue problems, in which the matrix function of the eigenmlue can be expanded in terms of its pow...

Some solvable subclasses of structural recognition problems

During the last decades a lot of applied structural recognition problems came to light which might be reduced to consistent labelling problems. The consistent labelling problem and its appropriate fuzzy and probabilistic modifications became a proper formalism for a unified formulation of such problems regardless of their specific applied contents. On the other hand there is no formal construct...