Czechoslovak Academy of Sciences

About: Czechoslovak Academy of Sciences is a based out in . It is known for research contribution in the topics: Catalysis & Adsorption. The organization has 13227 authors who have published 17335 publications receiving 272882 citations.

The Alternative Mathematical Model of Linguistic Semantics and Pragmatics

Abstract: This chapter is devoted to the main topic of this book, which is the alternative mathematical model of linguistic semantics and pragmatics (AML). In many places it consists of an outline of the main ideas only since it is impossible to analyze all of the details in a single book. The first two sections deal with the general mathematical frame of the model. In Sections 5.3–5.5, we present the model of basic units and the way the semantics of simple sentences is modeled. In Sections 5.6 and 5.7, we discuss other important features of natural language and the possible ways AML can handle them.

Substructure of Persistent Slip Bands in Cyclically Deformed Copper

Abstract: The dislocation distribution in the surface layer of cyclically deformed specimens of polycrystalline copper is studied by means of transmission electron microscopy of thin foils, both parallel and nonparallel to the surface. The distribution within the surface layer and near the persistent slip bands is found to differ considerably from that inside the specimens. The persistent slip bands consist of zones of alternately high and low dislocation density. The zones of high density link together at a particular depth below the surface. The zones of low density are assumed to serve as “channels” in which the motion of dislocations emitted from Frank-Read sources is relatively free. The escape of these dislocations from the free surface results in surface extrusions. Die Versetzungsanordnung in der Oberflachenschicht periodisch beanspruchter polykristalliner Kupferproben wird mit Transmissions-Elektronenmikroskopie an dunnen Folien untersucht, sowohl parallel als auch nichtparallel zur Oberflache. Es wird festgestellt, das die Versetzungsverteilung in der Oberflachenschicht und in der Nahe persistenter Gleitzonen von derjenigen im Innern der Probe ziemlich verschieden ist. Die persistenten Gleitzonen bestehen aus Gebieten mit einer abwechselnd hohen und niedrigen Versetzungsdichte. Gebiete mit einer hohen Versetzungsdichte sind in einer bestimmten Tiefe unter der Oberflache verkettet. Es wird angenommen, das Gebiete mit einer niedrigen Versetzungsdichte als “Kanale” dienen, in denen die Bewegung der von Frank-Read-Quellen ausgehenden Versetzungen verhaltnismasig frei ist. Der Austritt dieser Versetzungen zur freien Oberflache hat die Bildung von Extrusionen der Oberflache zur Folge.

A new theoretical look at the inversion problem in molecules

Abstract: In this section, we shall compare briefly the approach to molecular spectra using the Hamiltonian described in this paper with the standard approach19' 20) Such a comparison is useful because it shows future trends and problems in the theoretical interpretation of vibration—rotation spectra of molecules.