The main directions of scientific research in the field of introducing promising optical technologies in the infrastructure of transport systems.

2021 ◽  
Vol 5 ◽  
Author(s):  
N.A. Kazansky ◽  
◽  
P. I. Lysyuk ◽  
I.F. Muzafarov
Keyword(s):  
Communication Networks ◽  
Optical Fibers ◽  
Transmission Lines ◽  
High Speed ◽  
Integrated System ◽  
Transport Infrastructure ◽  
Transport Systems ◽  
Physical Parameters ◽  
Distributed Sensor ◽  
Communication Lines

Projects for the development of the transport system of the Russian Federation involve the introduction of advanced optical technologies in the infrastructure of high-speed modern transport systems in the context of the implementation of un- manned maintenance technologies. The article presents the following areas of research carried out by the authors: — organization of high-speed super-long single-span trunk communication lines without intermediate allocation of digital channels and paths laid in areas with limited access by the maintenance personnel in areas with no infrastructure (underwater obstacles, mountainous terrain, desert and swampy areas). The authors of the article highlighted the main factors influencing the design features of high-speed ultra-long single-span communication lines; — application of photonic switching (PS) technology in high-speed backbone communication networks to ensure operational logical reconfiguration of channel structures and digital paths. Within the framework of this direction of research, the authors have proposed methods for calculating the probabilities of the occurrence of internal blockages in various structures of PS based on the use of the method of mathematical induction in order to synthesize PS structures of a given capacity; — development of effective technologies for remote monitoring of the health of transport infrastructure facilities using passive optical transmission lines. Within the framework of this line of research, the authors analyze the features of the physical prop- erties of optical fibers used as a distributed sensor on the basis of which an integrated system can be built that can measure various physical parameters, such as vibration, deformation, temperature and other parameters.

Russia rail and road investment could spur economy

2017 ◽  
Keyword(s):  
High Speed ◽  
Global Supply Chain ◽  
Transport Infrastructure ◽  
Transport Systems ◽  
Road Maintenance ◽  
Labour Mobility ◽  
High Speed Railway ◽  
Content Type ◽  
Fiscal Constraints ◽  
In Transit

Subject Russia's rail and road infrastructure. Significance As the world's largest country, Russia faces unique challenges in developing its transport infrastructure. Fiscal constraints since 2014-15 have prevented the necessary investment, and the continuing deterioration in connectivity between regions hampers economic activity and amplifies existing social problems. Impacts Investing in transit corridors should strengthen Russia's position in the global supply chain. The two-year delay to the Moscow-Kazan high-speed railway demonstrates the difficulties of qualitative improvements. Underdeveloped urban and inter-city transport systems impede labour mobility and productivity. Initiatives to transfer road maintenance costs to final users will meet with resistance against 'taxing' a public good.

scholarly journals Socialization of public transport in the new technological paradigm

2019 ◽  
Vol 5 (3) ◽  
pp. 4-17
Author(s):  
Anatoly A. Zaitcev
Keyword(s):  
Public Transport ◽  
High Speed ◽  
Optimal Solution ◽  
Decisive Role ◽  
Transport Infrastructure ◽  
Transport Systems ◽  
Innovative Technology ◽  
Technological Paradigm ◽  
Russian President ◽  
Leading Position

The humanity is entering the 6th technological paradigm. The technologies that shape it, form new sectors of the economy, will trigger change in educational programmes, and emergence of innovative modes of transport and connection. Maglev transport system, where one of the key advantages over conventional transport is full automation, is a powerful instrument for innovative development of mainline infrastructure, and an optimal solution, that enables achieving digital the socialization of public transport. In accordance with the laws of transition to the next technological paradigm, transport will face a technical revolution. The existing transport development model is maintained by gigantic infusion of resources. However, it is obvious that this is a backward model, being inadequate to both the society and business. The development of projects of innovative transport based on maglev technology, will foster development of new materials, technologies and hardware. The maglev technology is multifunctional, it allows engineering transport systems for various purposes, that correspond to consumers changing demand. Its application spheres are not fully exposed yet. However, the key issues, such as economic efficiency, aptitude to meet the societys and economys demand, are proved and obvious. The Russian president supported project of construction of the Moscow-Saint Petersburg high-speed mainline is ideal for realisation on the basis of maglev technology. The innovative technology that is able to provide disruptive development of Russias transport infrastructure is the maglev technology. Its application in transport industry, that plays a decisive role in development of safety and the countrys connectivity, will secure Russias leading position today and guarantee stable economy development in the future.

Cargo-Carrying Transport Platform Based on Magnetic Levitation: Experience of creation

2015 ◽  
Vol 1 (2) ◽  
pp. 5-15 ◽  
Author(s):  
Anatoly A Zaitsev
Keyword(s):  
High Speed ◽  
Magnetic Levitation ◽  
Low Cost ◽  
Komi Republic ◽  
Transport Infrastructure ◽  
Transport Systems ◽  
The North ◽  
Cargo Transport ◽  
The Russian Federation ◽  
Economic Reasoning

The North of Russia in the short term remains not captured high-speed movement. Such situation can be rectified by application magnetic and levitation technologies, and so string trestle technologies. However, the careful ecological and economic reasoning, and also adaptation of constructive elements and technologies to North conditions has to precede use of such technologies. For development of the railway high-speed communication it is necessary to create rings of the high-speed movement. Thus the cellular network structure which is much more effective existing treelike, taking place in the Komi Republic, the Arkhangelsk and Murmansk areas will be initially formed. Container message of trestle type Ivdel - Indiga about 1100 km long can become possible application of magnetic and levitation technology in the north of Russia. From Ivdel the container highway can be continued in the southern direction to border with China. At the organization of the high-speed movement it is necessary to divide passenger and cargo transport streams. If to execute passenger modules in the form of individual vehicles (four-five-seater), elements of infrastructure will be less expensive. The sizes and loading capacity of containers for high-speed transportations can be also reduced. Developers of string transport systems actively study questions of design of transport modules of various mission, creation of low-cost transport infrastructure. In the conditions of the North of Russia development of transport system which would combine advantages of magnetic and levitation and string transport is of interest. Stability of such system can be provided when using effect of «a magnetic potential hole». Implementation of large transport projects of the high-speed movement in the Russian Federation can promote strengthening international cooperation and be carried out on its basis.

scholarly journals TECHNOLOGIES OF HIGH-SPEED TRANSPORT FOR THE NORTH OF RUSSIA

2015 ◽  
Vol 1 (1) ◽  
pp. 5-12
Author(s):  
Anatoly N KISELENKO ◽  
Evgeny Yu SUNDUKOV
Keyword(s):  
High Speed ◽  
Low Cost ◽  
Komi Republic ◽  
Transport Infrastructure ◽  
Transport Systems ◽  
Short Term ◽  
The North ◽  
Cargo Transport ◽  
The Russian Federation ◽  
Economic Reasoning

The North of Russia in the short term remains not captured high-speed movement. Such situation can be rectified by application magnetic and levitation technologies, and so string trestle technologies. However, the careful ecological and economic reasoning, and also adaptation of constructive elements and technologies to North conditions has to precede use of such technologies. For development of the railway high-speed communication it is necessary to create rings of the high-speed movement. Thus the cellular network structure which is much more effective existing treelike, taking place in the Komi Republic, the Arkhangelsk and Murmansk areas will be initially formed. Container message of trestle type Ivdel - Indiga about 1100 km long can become possible application of magnetic and levitation technology in the north of Russia. From Ivdel the container highway can be continued in the southern direction to border with China. At the organization of the high-speed movement it is necessary to divide passenger and cargo transport streams. If to execute passenger modules in the form of individual vehicles (four-five-seater), elements of infrastructure will be less expensive. The sizes and loading capacity of containers for high-speed transportations can be also reduced. Developers of string transport systems actively study questions of design of transport modules of various mission, creation of low-cost transport infrastructure. In the conditions of the North of Russia development of transport system which would combine advantages of magnetic and levitation and string transport is of interest. Stability of such system can be provided when using effect of «a magnetic potential hole». Implementation of large transport projects of the high-speed movement in the Russian Federation can promote strengthening international cooperation and be carried out on its basis.

scholarly journals IMPROVEMENT OF THE RUSSIAN CITIES’ TRANSPORT INFRASTRUCTURE

2018 ◽  
Vol 15 (5) ◽  
pp. 698-707
Author(s):  
E. A. Safronov ◽  
K. E. Safronov
Keyword(s):  
Traffic Safety ◽  
High Speed ◽  
Transport Infrastructure ◽  
Transport Systems ◽  
Large Cities ◽  
Route Network ◽  
Transport Services ◽  
The Disabled ◽  
Passenger Flows ◽  
Foreign Science

Introduction.The problems of congestion, ecology, and road safety in most of Russia’s major cities have been accumulated in the paper. Strategic planning documents aimed at updating the gene plan, improving the transport and route network, improving traffic safety, improving environmental performance and accessibility for people with disabilities are sent for such important problems solution. The paper presents the results of the scientific research conducted in large cities of Russia. Moreover, the review of the literature is presented, and the achievements of foreign science are taken into account.Materials and methods. Modern approaches to improving the system of public transport are given, the efficiency of high-speed transport modes, the organization of transport services for the disabled and low-mobility groups, traffic safety, ecology, and the implementation of the “Transport Strategy of the Russian Federation until 2030” are approved. As a criterion for the efficiency of improving the transport infrastructure, the level of its loading by various modes of transport is used.Results.The problems of influence of the city form on the formation of the transport frame, of the density of settlement and of the efficiency of urban development are considered. New methods of predicting the transport demand of the population, the level of the transport systems’ development and assessing accessibility are proposed. Therefore, the developed algorithms and recommendations for reducing the volume of transport infrastructure helps to improve its performance and availability. Such effect is achieved through the redistribution of transport and passenger flows between different modes of transport.Discussion and conclusion.The authors comes to the conclusion that it is necessary to improve the regulatory and methodological base of the transport industry constantly, improving the performance of the transport infrastructure of modern cities.

Study on Carrier Mobility Model for PD-Ge Monolithic Optoelectronic Integration Chips

2019 ◽  
Vol 14 (12) ◽  
pp. 1776-1785
Author(s):  
Ren Yuan ◽  
Song Jianjun ◽  
Yang Wen ◽  
Dai Xianying ◽  
Zhao Tianlong
Keyword(s):  
High Speed ◽  
Carrier Mobility ◽  
Mobility Model ◽  
Integrated System ◽  
Analytical Models ◽  
Physical Parameters ◽  
Si Substrate ◽  
Optoelectronic Integration ◽  
The Difference ◽  
Higher Carrier Mobility

Based on the difference of thermal expansion coefficient between Si and Ge, low-intensity tensile stress can be introduced into Ge epitaxial layer on Si substrate. S-Ge/Si semiconductor (as known as low tensile strained Ge grown on Si substrate) has a higher carrier mobility when compared with unstrained-Ge or Si material, so that s-Ge/Si is appropriate for the production of high-speed circuit. At the same time, transformation from indirect bandgap semiconductor Ge into Pseudo-Direct bandgap semiconductor (which is also called PD-Ge) will be happen after s-Ge/Si is heavy doped, which makes LED produced of PD-Ge material perform a higher luminous efficiency because the radiative recombining probability of carriers in PD-Ge material is greatly improved compared with unstrained one. Taking the advantages referred of s-Ge/Si into account, s-Ge/Si has the potential to PD-Ge monolithic optoelectronic integration. Carrier mobility of the semiconductor is one of the key physical parameters during the design and simulation of PD-Ge monolithic optoelectronic integrated system. While as far as the authors are aware, carrier mobility model of s-Ge/Si is still rarely reported to date. In view of that all above, based on the E-k relation in both conduction band and valence band of s-Ge/Si material, the analytical models of physical parameters in energy band are established, and the models are verified by experiments. Then the s-Ge/Si carrier models are further established based on our band structure model, and the Monte Carlo method is used to verify our s-Ge/Si carrier mobility model. The quantificational results of our paper will help understand s-Ge/Si material physics and provide an important theoretical basis for the design of PD-Ge monolithic optoelectronic integration.

scholarly journals APPLICATION OF LINEAR ASYNCHRONOUS MOTORS FOR HIGH-SPEED GROUND TRANSPORT

2021 ◽  
Vol 2 (446) ◽  
pp. 31-36
Author(s):  
S. T. Akhatov ◽  
V. G. Solonenko ◽  
N. M. Makhmetova ◽  
S. A. Kosenko ◽  
N. V. Ivanovtseva ◽  
...  
Keyword(s):  
High Speed ◽  
Magnetic Suspension ◽  
Transport Systems ◽  
Physical Parameters ◽  
Finite Width ◽  
Main Task ◽  
Tractive Force ◽  
Physical Processes ◽  
Linear Motors ◽  
Asynchronous Motors

Magnetic suspension in high-speed ground transport systems is an alternative to the rail wheel. The successful solution to the development of high-speed ground transport is largely determined by the creation of operationally efficient linear motors, the main task of which is to convert electrical energy into mechanical energy and create tractive force to ensure the movement of the crew according to a given program in the range of operating speeds. The article investigates linear asynchronous motors with longitudinal closure of magnetic flux of single-ended design. As a result of investigation of physical processes in linear motors caused by edge problems it was found that the cause of the transverse edge effect is the finite width dimensions of the reactive bus, the change of which causes closure of eddy currents within the active area of inductor, leads to weakening of magnetic field in the central zone and to reduction of tractive force. The discrepancy between the calculated and experimental indicators of physical processes in linear asynchro- nous motors due to significant idealization of mathematical models led to the development of a three-dimensional theory, brought to the calculation programs. The developed calculation program of electromechanical characteristics of linear induction motors with inductor and reactive bus layout, as well as their geometrical and physical parameters allows to determine the necessary integral motor characteristics in the form of a levitation function.

A Comprehensive Study on Intelligent Transportation Systems

2018 ◽  
Vol 4 (10) ◽  
pp. 10
Author(s):  
Ankur Mishra ◽  
Aayushi Priya
Keyword(s):  
Intelligent Transportation Systems ◽  
Traffic Congestion ◽  
Transportation Systems ◽  
Environmental Conservation ◽  
Integrated System ◽  
Transport Systems ◽  
Transport Sector ◽  
Intelligent Transport System ◽  
Intelligent Transport ◽  
Transportation Sector

Transportation or transport sector is a legal source to take or carry things from one place to another. With the passage of time, transportation faces many issues like high accidents rate, traffic congestion, traffic & carbon emissions air pollution, etc. In some cases, transportation sector faced alleviating the brutality of crash related injuries in accident. Due to such complexity, researchers integrate virtual technologies with transportation which known as Intelligent Transport System. Intelligent Transport Systems (ITS) provide transport solutions by utilizing state-of-the-art information and telecommunications technologies. It is an integrated system of people, roads and vehicles, designed to significantly contribute to improve road safety, efficiency and comfort, as well as environmental conservation through realization of smoother traffic by relieving traffic congestion. This paper aims to elucidate various aspects of ITS - it's need, the various user applications, technologies utilized and concludes by emphasizing the case study of IBM ITS.

Light Railways as the Basic for Transport Infrastructure Development in Northern Territories of Russia

2020 ◽  
pp. 97-101
Author(s):  
P.I. Tarasov
Keyword(s):  
High Speed ◽  
Road Transport ◽  
Transport Infrastructure ◽  
The Arctic ◽  
Infrastructure Development ◽  
Capital Costs ◽  
New Type ◽  
The Republic ◽  
Northern Territories ◽  
Mode Of Transport

Research objective: studies of economic and transport infrastructure development in the Arctic and Northern Territories of Russia. Research methodology: analysis of transport infrastructure in the Republic of Sakha (Yakutia) and the types of railways used in Russia. Results: economic development of any region is proportional to the development of the road transport infrastructure and logistics. When a conventional railway is operated in the Arctic conditions, it is not always possible to maintain a cargo turnover that would ensure its efficient use, and transshipment from one mode of transport to another is very problematic. A new type of railway is proposed, i.e. a light railway. Conclusions: the proposed new type of transport offers all the main advantages of narrow gauge railroads (high speed of construction, efficiency, etc.) and helps to eliminate their main disadvantage, i.e. the need for transloading when moving from a narrow gauge to the conventional one with the width of 1520 mm, along with a significant reduction in capital costs.

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