scholarly journals Digital information exchange technologies at electric power facilities of the railway transport and its cost-benefit

2020 ◽  
Vol 918 ◽  
pp. 012185
Author(s):  
A N Kobylitsky ◽  
I V Ignatenko ◽  
S A Vlasenko ◽  
E Y Tryapkin ◽  
I A Rebrov
Keyword(s):  
Electric Power ◽  
Information Exchange ◽  
Cost Benefit ◽  
Digital Information ◽  
Railway Transport

Mathematical Models of Effective Topology of Computer Networks for Electric Power Supply Control on Railway Transport

2022 ◽  
Vol 24 (2) ◽  
pp. C27-C32
Author(s):  
Oleksandr Stasiuk ◽  
Valeriy Kuznetsov ◽  
Vitalii Zubok ◽  
Lidiya Goncharova ◽  
Antonina Muntian
Keyword(s):  
Mathematical Models ◽  
Electric Power ◽  
Computer Networks ◽  
Information Exchange ◽  
Computer Network ◽  
Railway Transport ◽  
Electric Power Supply ◽  
Traction Substations ◽  
Consumption Control ◽  
Intelligent Computer

The paper is devoted to analysis of modern directions of innovation-investment formation of intelligent computer networks that control the fast-moving technological processes of electricity supply. It is based on the conclusion that the problem of increasing the productivity of information exchange between information resources and consumers is dominant. A method for increasing the efficiency of information exchange is proposed as a search for the rational location of a new node and the organization of such a set of its connections among the whole set of nodes of the computer network, which provides a minimum average topological distance. Mathematical models of effective topological organization of connections in computer network of power consumption control at the level of traction substations, electric power distances and the railway in general are proposed.

scholarly journals Do Market Characteristics Matter? Factors Associated with Health Information Exchange

2021 ◽  
Vol 18 (22) ◽  
pp. 11976
Author(s):  
Na-Eun Cho ◽  
KiHoon Hong ◽  
Jongwha Chang
Keyword(s):  
Health Information ◽  
Information Exchange ◽  
Health Information Exchange ◽  
Digital Information ◽  
Hospital Level ◽  
Ownership Type ◽  
Depth Level ◽  
American Hospital ◽  
American Hospital Association ◽  
Factors Associated

This study explores factors associated with the breadth (extent) and depth (level of detail) of digital information exchange among stakeholders in health information technology (IT) systems. Annual and IT surveys of the American Hospital Association and the U.S. Census Bureau’s small-area income and poverty estimates from 2014–2016 were analyzed for associations between key factors and breadth and depth of information exchange. OLS Regression was used with a sample consisting of 10,040 year-hospital observations. We found that hospital-level variables such as size, ownership type, system affiliation, physician-hospital arrangement, and revenue model affect information exchange. We further found that market-level variables such as concentration ratio, urbanness, and median household income, although they directly affect information exchange, do not moderate the relationship between hospital-level variables and information exchange. Our study fills a gap in the previous literature arising from the lack of research on the determinants of health information exchange.

scholarly journals DATA-flow in the field of urban planning: basics, concept, methodology

2021 ◽  
Vol 258 ◽  
pp. 09054
Author(s):  
Pavel Chelyshkov ◽  
Sergey Volkov ◽  
Evgeny Babushkin
Keyword(s):  
Life Cycle ◽  
Urban Planning ◽  
Information Exchange ◽  
Data Exchange ◽  
Data Flow ◽  
Digital Information ◽  
Information Models ◽  
Exchange Processes ◽  
Capital Construction ◽  
Exhaustive List

This article discusses the basics, concept and methodology for constructing tools that implement data exchange processes, including an exhaustive list of necessary data for the formation of information models of capital construction objects at each stage of the life cycle, as well as a plan for the development of these tools that provide information exchange processes. The technical and technological foundations for the formation of a digital information model and a scheme for verifying information transmitted from stage to stage of the life cycle of a capital construction object are stated.

Capitalizing on Immersive Persistence as an Emergent Design Concept (A Position Paper)

2011 ◽  
pp. 1901-1913
Author(s):  
Shalin Hai-Jew
Keyword(s):  
Virtual Worlds ◽  
Information Exchange ◽  
Three Dimensional ◽  
Relationship Management ◽  
Customer Relationship ◽  
Digital Information ◽  
3D Objects ◽  
Resource Protection ◽  
Emergent Design

In their evolution, virtual worlds have become more persistent. Their three-dimensional (3D) objects are more easily ported and interoperable between 3D repositories and may eventually be portable between synthetic world systems. If trend-lines continue, these synthetic spaces will become more integrated into the fabric of virtual learning and research, community-building, socializing, and digital information archival. Their continuity-in-time adds fresh capabilities for learning (human actualization, long-term virtual collaborations), digital resource protection (digital artifact preservation, long-term and evolving simulations, virtual ecologies), human relationship management (customer relationship management and branding, digital governance), and information exchange and management (international exchanges, and immersive long-term 3D libraries and knowledge structures). However, this immersive persistence must be balanced against the needs of temporality, transience, and forgetting.

Railway Investment Appraisal Techniques

2016 ◽  
pp. 67-99
Author(s):  
Miloš Milenković ◽  
Libor Švadlenka ◽  
Nebojša Bojović ◽  
Vlastimil Melichar
Keyword(s):  
Net Present Value ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Rate Of Return ◽  
Internal Rate Of Return ◽  
Benefit Analysis ◽  
Railway Transport ◽  
Investment Appraisal ◽  
Analytical Tools ◽  
Made In

Railway transport involves the expenditure of resources on a combination of investment in capital items (e.g. stations, tracks, equipment) and/or in operations (e.g. subsidies). Concerning the fact that there are limited amounts of resources, it is necessary to maximize the returns obtained from the investments of those resources. The best way to do this is to ensure that the resources will be allocated on those projects that maximize their return. Railway appraisals therefore represent a way of thinking about all the costs and benefits of different railway related spending projects in a systematic manner so that, the projects can be compared and investments made in those which are going to provide the maximum possible return on the investment. This chapter provides a review of the main analytical tools that should be used in the process of railway investments appraisal. Namely, a detailed description of discounting, Net Present Value (NPV), Internal Rate of Return (IRR) and Cost Benefit Analysis (CBA) is covered by this chapter.

Analysis of indicators of electric power efficiency in network of non-tractive power consumers of railway transport

2020 ◽  
pp. 86-90
Author(s):  
Alexey Anatolyevich Kovalev ◽  
◽  
Timur Talgatovich Shayukhov ◽  
Sergey Alexeevich Chebakov ◽  
Alexander Takhirovich Sharapov ◽  
...  
Keyword(s):  
Electric Power ◽  
Power Supply ◽  
Power Efficiency ◽  
Active Filter ◽  
Railway Transport ◽  
Traction Substation ◽  
Supply Systems

The paper considers the analysis of the most important indicators of electric power efficiency in non-tractive power supply systems of railway transport on the example of a specific traction substation feeder. The authors propose variants of solving problems of discrepancy between the indicators and standard requirements. As a result, they discuss the advantages of using the active filter in comparison with other methods of filtering upper harmonics.

Improving the railway transport electric power converters reliability

2018 ◽  
pp. 55-57
Author(s):  
Yuriy Anatolyevich Pikalin ◽  
◽  
Boris Sergeyevich Sergeev ◽  
Anna Viktorovna Bondarenko ◽  
◽  
...  
Keyword(s):  
Electric Power ◽  
Power Converters ◽  
Railway Transport

scholarly journals Power Systems Resilience Metrics: A Comprehensive Review of Challenges and Outlook

2020 ◽  
Vol 12 (22) ◽  
pp. 9698
Author(s):  
Habibollah Raoufi ◽  
Vahid Vahidinasab ◽  
Kamyar Mehran
Keyword(s):  
Power Systems ◽  
Power System ◽  
Electric Power ◽  
Low Frequency ◽  
Cost Benefit ◽  
Electric Power System ◽  
Different Types ◽  
Key Variables ◽  
Comprehensive Framework ◽  
Planning And Operation

Recently, there has been a focus on natural and man-made disasters with a high-impact low-frequency (HILF) property in electric power systems. A power system must be built with “resilience” or the ability to withstand, adapt and recover from disasters. The resilience metrics (RMs) are tools to measure the resilience level of a power system, normally employed for resilience cost–benefit in planning and operation. While numerous RMs have been presented in the power system literature; there is still a lack of comprehensive framework regarding the different types of the RMs in the electric power system, and existing frameworks have essential shortcomings. In this paper, after an extensive overview of the literature, a conceptual framework is suggested to identify the key variables, factors and ideas of RMs in power systems and define their relationships. The proposed framework is compared with the existing ones, and existing power system RMs are also allocated to the framework’s groups to validate the inclusivity and usefulness of the proposed framework, as a tool for academic and industrial researchers to choose the most appropriate RM in different power system problems and pinpoint the potential need for the future metrics.

Sign in / Sign up

Export Citation Format

Share Document