Утилиты в по Mathcad для уточненного расчета электрических полей при облучении полимерных пленок электронами низких энергий
Polymer materials are widely used in various fields of human activity, including space technology and nuclear power. As in the first and in the second case the operations polymeric materials are exposed to ionizing radiation. Naturally, under such influence alters the electrical properties of these materials. Such changes in the properties of, known as radiation effects. Radiation Effects agreed to be divided into two classes: radiation effects are reversible and irreversible consequences. Postbeam or irreversible effects take place in the optical and mechanical properties of polymers. For example, there is an irreversible decrease in tensile strength. The main radiation effect is reversible - the effect is a significant increase in the polymer and the conductivity of radiation exposure in a rapid decrease in the conduction of action termination. This polymer is referred to as the electrical conductivity of the electrical conductivity of the radiation (ER). ER - is the main factor that regulates the amount of charged polymer under electron irradiation. Study of this phenomenon in the present study.
Creature questions of the mathematical, informational and programming support for the practice network community control are considered. Community mathematical model is proposed. This model utilization as basis for realization of the control system principal functions in the context of the participant interaction improvement and object community regions forming is considered.
The dynamics of a two-component Davydov-Scott (DS) soliton with a small mismatch of the initial location or velocity of the high-frequency (HF) component was investigated within the framework of the Zakharov-type system of two coupled equations for the HF and low-frequency (LF) fields. In this system, the HF field is described by the linear Schrödinger equation with the potential generated by the LF component varying in time and space. The LF component in this system is described by the Korteweg-de Vries equation with a term of quadratic influence of the HF field on the LF field. The frequency of the DS soliton`s component oscillation was found analytically using the balance equation. The perturbed DS soliton was shown to be stable. The analytical results were confirmed by numerical simulations.
Radiation conditions are described for various space regions, radiation-induced effects in spacecraft materials and equipment components are considered and information on theoretical, computational, and experimental methods for studying radiation effects are presented. The peculiarities of radiation effects on nanostructures and some problems related to modeling and radiation testing of such structures are considered.
This volume presents new results in the study and optimization of information transmission models in telecommunication networks using different approaches, mainly based on theiries of queueing systems and queueing networks .
The paper provides a number of proposed draft operational guidelines for technology measurement and includes a number of tentative technology definitions to be used for statistical purposes, principles for identification and classification of potentially growing technology areas, suggestions on the survey strategies and indicators. These are the key components of an internationally harmonized framework for collecting and interpreting technology data that would need to be further developed through a broader consultation process. A summary of definitions of technology already available in OECD manuals and the stocktaking results are provided in the Annex section.