Identifying and understanding strong vibronic interaction effects observed in the asymmetry of chiral molecule photoelectron angular distributions

Electron-ion coincidence imaging is used to study chiral asymmetry in the angular distribution of electrons emitted from randomly-oriented enantiomers of two molecules, methyloxirane and trifluoromethyloxirane, upon ionization by circularly polarized VUV synchrotron radiation. Vibrationally-resolved photoelectron circular dichroism (PECD) measurements of the outermost orbital ionization reveal unanticipated large fluctuations in the magnitude of the forward-backward electron scattering asymmetry, including even a complete reversal of direction. Identification and assignment of the vibrational excitations is supported by Franck-Condon simulations of the photoelectron spectra. A previously proposed quasi-diatomic model for PECD is developed and extended to treat polyatomic systems. The parametric dependence of the electronic dipole matrix elements on nuclear geometry is evaluated in the adiabatic approximation, and provokes vibrational level dependent shifts in amplitude and phase, to which the chiral photoelectron angular distributions are especially sensitive. It is shown that single quantum excitation of those vibrational modes which experience only a relatively small displacement of the ion equilibrium geometry along the normal coordinate, and which are then only weakly excited in the Franck-Condon limit, can be accompanied by big shifts in scattering phase; hence the observed big fluctuations in PECD asymmetry for such modes

Ensuring the conflict sustainability of the information systems on the basis of technical means

The analysis of the purposes, tasks, functions and ways of ensuring conflict stability of func-tioning of information systems on the ba-sis of application of a complex of technical means is carried out. The main contours of management of elements of the organizational and technical systems (OTS) in various forms of actions are defined. It is noted that a basis of functioning of OTS, infor-mation sup-port makes, classes of the data making him are defined. It is shown that ensuring conflict stability of functioning of the information sys-tems (IS) is carried out by the complex of technical means (CTM), as a part of subsystems of reception / transfer, collecting and de-struction / distortion of information, their main functions are defined. Wednesday in which KTS function, is defined as an information and target situation which is understood as the part of a social and economic situa-tion characterized by existence of KTS providing functioning with IS, their location, operating modes, parameters of the information streams (IS), characteristics of technical means of processing, storage, submission of information realized by ways of the information security (IS) for the solution of tasks in dynamics of information conflict. At the same time the information conflict is part target (the difficult conflict) OTS representing information ex-change of KTS providing conflict steady functioning of IS at realization of processes of collection of information, transfer and counter-action to carrying out similar actions by the competing party with means of the destroying / distorting in-fluences (RIV). The special at-tention is paid to research of actions of a subsystem of collection of information, methods of collection of information are defined, con-ditions of application of methods of processing of the collected data are shown, features of functioning of subsystems of KTS at vari-ous stages of application are considered. The conclusion is drawn that ensuring conflict stability functioning of information systems and means in the course of conflict interaction of OTS repre-sents a difficult interdependent complex of actions for collecting, processing, storage and updating of data on an information and target situation, to their analysis for the benefit of identification of objects and RIV is more whole. The effective solution of problems of KTS is function of existence of authentic reference descriptions of elements and objects of the competing OTS, and also, before-hand developed situations

METHODS OF INFORMATION EXPOSURE IN THE SYNTHESIS OF CONTROL STRATEGIES OF COM-PETITIVE STABILITY OF A SOCIOECONOMIC ORGANIZATIONS

Approach of synthesis management strategy of competitiveness of various types of the social and economic organizations on the basis of realization the ways of individ-ual and group information influence for achievement of their effective functioning in the conditions of competitive information counteraction is offered. Approach is based on methods of consecutive purpose of resource units, branches and borders

SYSTEM MODELING OF THE COMPETITIVENESS OF SMALL ENTERPRISES

Methodological bases of system modeling of small enterprises development competitiveness are offered. There are justified methods of mathematical programming for modeling research of enterprises competitiveness

METHOD OF JUSTIFICATION OF METHODS OF APPLICATION OF COMPLEXES OF TECHNICAL MEANS OF INFORMATION SUPPORT OF CONFLICT INTERACTION OF ORGANIZATIONAL AND TECHNICAL SYSTEMS

The method of justification of methods of application of complexes of technical means of information support of conflict interaction of organizational and technical systems on the basis of the solution of an optimizing problem of distribution of a discrete resource of technical means of measurement, extraction, distortion and destruction of information is offered. The method is based on methods of branches and borders, consecutive distribution of units of a resource, standard planning and the maximum element. The proposed method provides an implementation of the optimal methods for coordinated implementation of the set of individual information security and complex group of information security within the complex of technical means for operations of single and groups of elements of objects of technical means and justification of the basic requirements to the management system that implements these methods in the dynamics of the conflict