Квантовый транспорт единичного фотона через субволновое отверстие единичным атомом
The localization and transport of a photon through a subwavelength hole with the help of a neutral atom are studied. A method proposed and realized in the study is based on the absorption of a photon by a neutral atom directly in front of a subwavelength hole, the flight of the atom through the hole, and photon emission on the other side of the screen. The influence of the interaction of the excited atom flying through the subwavelength channel with the screen material is estimated. The estimate showed that the atomic exci- tation can be quenched in holes with diameters smaller than 200 nm, which affects the photon transport effi- ciency.
The main task of the economy modernizing is to improve its competitiveness and sustainability is the creation of the corresponding infrastructure. The solution of this problem is possible only through the joint efforts of state and private business. In this article, based on an analysis of managing infrastructure projects’ experience common and specific factors that affect the transport infrastructure project management are revealed, the principles of public-private partnership (PPP) as the format of such projects are systematized and developed; the ways of improvement of the organizational economic mechanism of rail PPPs management (life cycle contract) are offered.
The tutorial describes the specific features of transport as an object of management, main characteristics of transport systems, principles of organisation and regulation of transport activities, main terms and definitions related to freight an cargo flows. Described are the basic calculation methods necessary to calculate the number of vehicles and their parameters.
DepCoS – RELCOMEX is an annual series of conferences organized by Wrocław University of Technology to promote a comprehensive approach to evaluation of system performability which is now commonly called dependability. In contrast to classic analyses which were concentrated on reliability of technical resources and structures built from them, dependability is based on multi-disciplinary approach to theory, technology, and maintenance of a system considered to be a multifaceted amalgamation of technical, information, organization, software and human (users, administrators, supervisors, etc.) resources. Diversity of processes being realized (data processing, system management, system monitoring, etc.), their concurrency and their reliance on in-system intelligence often severely impedes construction of strict mathematical models and calls for application of intelligent and soft computing methods.
This book presents the proceedings of the Ninth International Conference on Dependability and Complex Systems DepCoS-RELCOMEX, which took place in Brunów Palace, Poland, from 30th June to 4th July, 2014. The articles selected for this volume illustrate the variety of topics that must be included in system dependability analysis: tools, methodologies and standards for modelling, design and simulation of the systems, security and confidentiality in information processing, specific issues of heterogeneous, today often wireless, computer networks, or management of transportation networks.
The present paper is devoted to a study of the legal regulation of the relations in the gas industry of China and Brazil. In the first instance the author represents the overall survey of the state of the gas industry in these countries and perspectives of its development. The research is accented on the legal sources of regulation in that domain and the role of the international law. In the article the detailed analysis is made on legal regulation of activities of exploration, production of natural gas, on its transportation, distribution, commercialization, import-export activity in Brazil and in China. In conclusion the author resumes the results of the comparative legal analysis, estimating the models of regulation, pointing out their weaknesses and possible treatment for its correction.
The history and background of the laser gyro are considered. The main position of the laser gyros at the navigation market is shown.
DepCos-RELCOMEX is an annual series of conferences organized by the Institute of Computer Engineering, Control and Robotics (CECR), Wroclaw University of Technology, since 2006.
Contemporary technical systems are integrated unities of technical, information, organization, software and human resources. Diversity of the processes being realized in the system, their concurrency and their reliance on in-system intelligence significantly impedes construction of strict mathematical models and calls for application of intelligent and soft computing methods.
The submissions included in this volume illustrate variety of problems that need to be explored in the dependability analysis: methodologies and practical tools for modelling, design and simulation of the systems, security and confidentiality in information processing, specific issues of heterogeneous, today often wireless, computer networks, or management of transportation networks.
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.