scholarly journals A method for the improvement need definition of large, single-track rail network analysis and infrastructure using “Rail Traffic System Analysis”

2010 ◽  
Author(s):  
T. Kosonen
Keyword(s):  
Network Analysis ◽  
System Analysis ◽  
Single Track ◽  
Traffic System ◽  
Rail Network ◽  
Definition Of ◽  
Rail Traffic

A real-time control method-based simulation for high-speed trains on large-scale rail network

2017 ◽  
Vol 28 (10) ◽  
pp. 1750126 ◽  
Author(s):  
Yutong Liu ◽  
Chengxuan Cao ◽  
Yaling Zhou ◽  
Ziyan Feng
Keyword(s):  
Real Time ◽  
Traffic Flow ◽  
High Speed ◽  
Large Scale ◽  
Simulation Method ◽  
Real Time Control ◽  
Rail Network ◽  
Time Control ◽  
High Speed Trains ◽  
Rail Traffic

In this paper, an improved real-time control model based on the discrete-time method is constructed to control and simulate the movement of high-speed trains on large-scale rail network. The constraints of acceleration and deceleration are introduced in this model, and a more reasonable definition of the minimal headway is also presented. Considering the complicated rail traffic environment in practice, we propose a set of sound operational strategies to excellently control traffic flow on rail network under various conditions. Several simulation experiments with different parameter combinations are conducted to verify the effectiveness of the control simulation method. The experimental results are similar to realistic environment and some characteristics of rail traffic flow are also investigated, especially the impact of stochastic disturbances and the minimal headway on the rail traffic flow on large-scale rail network, which can better assist dispatchers in analysis and decision-making. Meanwhile, experimental results also demonstrate that the proposed control simulation method can be in real-time control of traffic flow for high-speed trains not only on the simple rail line, but also on the complicated large-scale network such as China’s high-speed rail network and serve as a tool of simulating the traffic flow on large-scale rail network to study the characteristics of rail traffic flow.

Forms of prevention of illegal migration by the State Border Service of Ukraine

2021 ◽  
pp. 79-87
Author(s):  
A. Mota
Keyword(s):  
Crime Prevention ◽  
System Analysis ◽  
Preventive Measures ◽  
Research Work ◽  
The State ◽  
Educational Process ◽  
Illegal Migration ◽  
Definition Of ◽  
The Impact ◽  
Operational Service

Purpose. The purpose of the work is to analyze the theoretical and regulatory provisions relating to the definition of forms of preventive action to combat illegal migration and used in the protection of the state border. Methodology. The method covers the application of general theoretical and special methods of scientific knowledge aimed at processing the conclusions of the study. The dialectical method, system analysis, classification and grouping methods, as well as the sociological method are used in the work. Results. The use of the most appropriate and lawful preventive measures is associated with the definition of a scientifically sound system of crime prevention, detailed structural characteristics of which in the activities of the State Border Guard Service of Ukraine to combat illegal migration are covered by two main blocks: procedural and operational. The procedural block concentrates such forms as operative-search activity, proceedings in cases of administrative offenses, proceedings on the application of forced return, forced expulsion and readmission of foreigners or stateless persons. The operational-service block covers the following forms: border service, border control, operational-search and information-analytical activity, engineering-technical control, complex preventive measures (operations). Scientific novelty. According to the results of the research, the system of forms of crime prevention in the activity of the State Border Guard Service of Ukraine on counteraction to illegal migration is substantiated, which envisages procedural and operational-service blocks. Forms of the procedural block of prevention of illegal migration are characterized by the impact on the offense, which has a preventive value, as well as the focus on the restoration of the disturbed state. Operational and official forms of prevention of illegal migration are designed to prevent offenses, as well as their detection to ensure an appropriate procedural response. Practical significance. The results of the research can be used in research work for further study of general and special issues of improving the fight against illegal migration, in the field of lawmaking - to improve the current administrative and migration legislation of Ukraine, in the educational process during the organization of educational activities and teaching administrative law. cycle, in law enforcement - to increase the efficiency of bodies and units of state border protection.

Extending Proximity Measures to Attributed Networks for Community Detection

2021 ◽  
Vol 30 (4) ◽  
pp. 441-455
Author(s):  
Rinat Aynulin ◽  
◽  
Pavel Chebotarev ◽  
◽  
Keyword(s):  
Network Analysis ◽  
Community Detection ◽  
Network Structure ◽  
Real World ◽  
Adjacency Matrix ◽  
Attribute Information ◽  
Node Attributes ◽  
Proximity Measures ◽  
Definition Of ◽  
Attributed Networks

Proximity measures on graphs are extensively used for solving various problems in network analysis, including community detection. Previous studies have considered proximity measures mainly for networks without attributes. However, attribute information, node attributes in particular, allows a more in-depth exploration of the network structure. This paper extends the definition of a number of proximity measures to the case of attributed networks. To take node attributes into account, attribute similarity is embedded into the adjacency matrix. Obtained attribute-aware proximity measures are numerically studied in the context of community detection in real-world networks.

An Experimental Evaluation of Link Prediction for Movie Suggestions Using Social Media Content

2018 ◽  
pp. 203-230
Author(s):  
Anu Taneja ◽  
Bhawna Gupta ◽  
Anuja Arora
Keyword(s):  
Social Media ◽  
Social Network ◽  
Social Network Analysis ◽  
Network Analysis ◽  
Online Social Networks ◽  
Experimental Evaluation ◽  
Link Prediction ◽  
Common Neighbor ◽  
Research Directions ◽  
Definition Of

The enormous growth and dynamic nature of online social networks have emerged to new research directions that examine the social network analysis mechanisms. In this chapter, the authors have explored a novel technique of recommendation for social media and used well known social network analysis (SNA) mechanisms-link prediction. The initial impetus of this chapter is to provide general description, formal definition of the problem, its applications, state-of-art of various link prediction approaches in social media networks. Further, an experimental evaluation has been made to inspect the role of link prediction in real environment by employing basic common neighbor link prediction approach on IMDb data. To improve performance, weighted common neighbor link prediction (WCNLP) approach has been proposed. This exploits the prediction features to predict new links among users of IMDb. The evaluation shows how the inclusion of weight among the nodes offers high link prediction performance and opens further research directions.

scholarly journals Architectural and ecological integration of postindustrial landscapes revitalization into socially oriented space of the embankment

2018 ◽  
Vol 193 ◽  
pp. 01032
Author(s):  
Nina Ivanova ◽  
Olga Ganzha ◽  
Vyacheslav Prokopenko ◽  
Alexandra Artyukhina
Keyword(s):  
System Analysis ◽  
Ecological Model ◽  
Coastal Landscape ◽  
Scientific Databases ◽  
Environment Quality ◽  
Oriented Area ◽  
Ecological Principles ◽  
Experimental Project ◽  
Definition Of ◽  
The City

The architectural and ecological model of civil engineering of socially oriented spaces of coastal landscape aimed at providing comfortable vital environment, development of the greatest possible variety of city activities, solution of environmental and social problems of the city, and development of the embankment as a self-valuable fragment of well-arranged natural landscape is substantiated. The research objective is the development of methodical bases for the process of architectural revitalization of postindustrial coastal landscape. The researchers utilize the methods of system analysis, reviewing of design practice, analysis of available scientific databases as well as referential and normative resources. The methods of modeling and experimental projecting were also used in the study. Architectural proposals on integration of the revitalized postindustrial coastal areas into socially oriented area of the Volgograd embankment are presented. The analysis of the experience in building and recovery of postindustrial landscapes of river basins is preformed to substantiate the proposed architectural and ecological principles of revitalization, "tree of properties" with the definition of environment quality indicator, the sequence of stages in planning of socially oriented area of the city embankment, and experimental project on integration of the studied coastal area into the vital space of the city of Volgograd.

scholarly journals Sluice Safety Reliability Analysis - Application for Baovan Sluice in Vietnam

2019 ◽  
Vol 8 (10) ◽  
pp. 3473-3477
Keyword(s):  
Reliability Analysis ◽  
System Analysis ◽  
Calculation Model ◽  
Safety Factors ◽  
Factors Analysis ◽  
Reliability Calculation ◽  
Simulation Calculation ◽  
System Analysis Approach ◽  
Analysis Application ◽  
Definition Of

The article summarizes the irrigation works designing methods in Vietnam and other countries. While in Vietnamirrigation systemdesign method is deterministic and based on safety factors analysis, in other countries it’s popular with random design and reliability analysis. This is a modern design model and widely used in many fields in the world. Therefore, in this study, the authors presented how to develop sluice reliability calculation method under system analysis approach: definition of sluice s, problem tree, reliability functions for system simulation, calculation of reliability for works and works system, calculate reliability Bao Van sluice in Thanh Hoa province according to the introduced calculation model and proposie solutions to improve the reliability of the sluice if repaired or upgraded..

Sign in / Sign up

Export Citation Format

Share Document