scholarly journals Technical Proposal for Monitoring Thermal and Mechanical Stresses of a Runway Pavement

Sensors ◽  
2021 ◽  
Vol 21 (20) ◽  
pp. 6797
Author(s):  
Salvatore Bruno ◽  
Giulia Del Serrone ◽  
Paola Di Mascio ◽  
Giuseppe Loprencipe ◽  
Eugenio Ricci ◽  
...  
Keyword(s):  
Structural Characteristics ◽  
Real Life ◽  
Pavement Management ◽  
Specific Calculation ◽  
Remote Monitoring System ◽  
Embedded Sensing ◽  
Airport Pavement ◽  
Innovative System ◽  
Maintenance Work ◽  
Data Acquisition And Processing

Airport pavements should ensure regular and safe movements during their service life; the management body has to monitor the functional and structural characteristics, and schedule maintenance work, balancing the often conflicting goals of safety, economic and technical issues. This paper presents a remote monitoring system to evaluate the structural performance of a runway composed of concrete thresholds and a flexible central runway. Thermometers, strain gauges, and pressure cells will be embedded at different depths to continuously monitor the pavement’s response to traffic and environmental loads. An innovative system allows data acquisition and processing with specific calculation models, in order to inform the infrastructure manager, in real time, about the actual conditions of the pavement. In this way, the authors aim to develop a system that provides useful information for the correct implementation of an airport pavement management system (APMS) based on real-life data. Indeed, it permits comprehensive monitoring functions to be performed, based on the embedded sensing network.

scholarly journals Urban fire risk control: House design, upgrading and replanning

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
Isabela Wilfred Mtani ◽  
Elinorata Celestine Mbuya
Keyword(s):  
Structural Characteristics ◽  
Real Life ◽  
Fire Risk ◽  
Fire Disaster ◽  
Grass Root ◽  
Grass Root Level ◽  
House Design ◽  
Fire Accidents ◽  
And Coping ◽  
Dar Es Salaam City

Urbanisation leads to house densification, a phenomenon experienced in both planned and unplanned settlements in cities in developing countries. Such densification limits fire brigade access into settlements, thereby aggravating fire disaster risks. In this article, we assess the fire exposure and risks in residences in informal areas of Mchikichini ward, in Dar es Salaam City, Tanzania. We rely on interviews of residents and government officials to obtain background on the occurrence and causes of fire accidents, policy provisions and regulations, and experiences with fire outbreaks and coping strategies, as well as on observations and measurements of house transformations, spatial quality and indoor real life. Our findings suggest that fire risks arise from both inappropriate structural characteristics and unsound behavioural practices. This includes unsafe electric practices by residents, poor capacity of residents to fight fires once started, limited access to structures by firefighting equipment because of flouting of planning regulations and inadequate awareness of local government leaders of the magnitude of fire risks. Potential changes to reduce fire risks in the settlement include the installation of firefighting systems, restriction of cooking to designated spaces, use of safer cooking energy sources and lighting means, improvements of vehicle access routes to neighbourhoods, capacity building at the grass root level and the establishment of community-based fire risk management.

scholarly journals Proposal and Implementation of a Heliport Pavement Management System: Technical and Economic Comparison of Maintenance Strategies

2021 ◽  
Vol 13 (16) ◽  
pp. 9201 ◽  
Author(s):  
Paola Di Mascio ◽  
Alessio Antonini ◽  
Piero Narciso ◽  
Antonio Greto ◽  
Marco Cipriani ◽  
...  
Keyword(s):  
Management System ◽  
Condition Index ◽  
Pavement Management ◽  
Pavement Management System ◽  
Pavement Condition ◽  
Airport Pavement ◽  
Maintenance And Rehabilitation ◽  
Pavement Condition Index ◽  
Rotary Wing ◽  
Economic Comparison

Maintenance and rehabilitation (M&R) scheduling for airport pavement is supported by the scientific literature, while a specific tool for heliport pavements lacks. A heliport pavement management system (HPMS) allows the infrastructure manager to obtain benefits in technical and economic terms, as well as safety and efficiency, during the analyzed period. Structure and rationale of the APSM could be replicated and simplified to implement a HPMS because movements of rotary-wing aircrafts have less complexity than fixed-wing ones and have lower mechanical effects on the pavement. In this study, an innovative pavement condition index-based HPMS has been proposed and implemented to rigid and flexible surfaces of the airport of Vergiate (province of Varese, Italy), and two twenty-year M&R plans have been developed, where the results from reactive and proactive approaches have been compared to identify the best strategy in terms of costs and pavement level of service. The result obtained shows that although the loads and traffic of rotary-wing aircrafts are limited, the adoption of PMS is also necessary in the heliport environment.

scholarly journals Community Detection Based on a Preferential Decision Model

Information ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 53
Author(s):  
Jinfang Sheng ◽  
Ben Lu ◽  
Bin Wang ◽  
Jie Hu ◽  
Kai Wang ◽  
...  
Keyword(s):  
Community Structure ◽  
Complex Networks ◽  
Community Detection ◽  
Decision Model ◽  
Structural Characteristics ◽  
Real Life ◽  
Stable State ◽  
Ground Truth ◽  
Label Propagation ◽  
Comparison Algorithms

The research on complex networks is a hot topic in many fields, among which community detection is a complex and meaningful process, which plays an important role in researching the characteristics of complex networks. Community structure is a common feature in the network. Given a graph, the process of uncovering its community structure is called community detection. Many community detection algorithms from different perspectives have been proposed. Achieving stable and accurate community division is still a non-trivial task due to the difficulty of setting specific parameters, high randomness and lack of ground-truth information. In this paper, we explore a new decision-making method through real-life communication and propose a preferential decision model based on dynamic relationships applied to dynamic systems. We apply this model to the label propagation algorithm and present a Community Detection based on Preferential Decision Model, called CDPD. This model intuitively aims to reveal the topological structure and the hierarchical structure between networks. By analyzing the structural characteristics of complex networks and mining the tightness between nodes, the priority of neighbor nodes is chosen to perform the required preferential decision, and finally the information in the system reaches a stable state. In the experiments, through the comparison of eight comparison algorithms, we verified the performance of CDPD in real-world networks and synthetic networks. The results show that CDPD not only has better performance than most recent algorithms on most datasets, but it is also more suitable for many community networks with ambiguous structure, especially sparse networks.

Opportunities in airport pavement management: Integration of BIM, the IoT and DLT

2021 ◽  
Vol 90 ◽  
pp. 101941
Author(s):  
Antonia Pacios Álvarez ◽  
Joaquín Ordieres-Meré ◽  
Ángel Paris Loreiro ◽  
Leticia de Marcos
Keyword(s):  
Pavement Management ◽  
Airport Pavement

Cyclic Approach to Airport Pavement Management Based on Non-Destructive Deflection Testing

2013 ◽  
Vol 723 ◽  
pp. 1019-1026
Author(s):  
Andrea Graziani ◽  
Andrea Grilli ◽  
Dania Miconi ◽  
Carlotta Godenzoni
Keyword(s):  
Pavement Management ◽  
Pavement Management System ◽  
Structural Evaluation ◽  
Airport Pavement ◽  
Pdca Cycle ◽  
Invaluable Tool ◽  
Deflection Test ◽  
Cyclic Approach ◽  
Non Destructive

The Authors describe the role of non-destructive deflection tests in Airport Pavement Management System (APMS) presenting the experience developed at an Italian Airport. An original approach to APMS implementation is illustrated, based on the PDCA cycle for quality control and continuous improvement of processes. An example application for the management of the runway pavement is described. Deflection test results obtained in four tests campaign carried out over a ten years period were globally analyzed to obtain pavement bearing capacity evolution and demonstrate the effectiveness of cyclic approach to pavement management. It is showed that structural evaluation can be an invaluable tool in pavement management and assist planning activities in the medium and long term.

scholarly journals Moral Disengagement Strategies in Videogame Players and Sports Players

2018 ◽  
Vol 8 (4) ◽  
pp. 1-25
Author(s):  
Lavinia McLean ◽  
Mark D. Griffiths
Keyword(s):  
Video Game ◽  
Moral Disengagement ◽  
Structural Characteristics ◽  
Real Life ◽  
Future Research ◽  
Relevant Research ◽  
Game Play ◽  
Video Game Play ◽  
Video Gamers ◽  
The Relationship

Research in the area of video game play and sports psychology has suggested that specific strategies are often employed by players to justify aggressive behaviour used during gameplay. The present study investigates the relationship between game play and moral disengagement strategies in a group of 605 adults who played violent videogames or regularly played competitive sports. The results suggest that sports players were more likely than violent game players to endorse moral disengagement strategies. The video gamers were more likely to use a specific set of moral disengagement strategies (i.e., cognitive restructuring) than the other groups and this may be related to the structural characteristics of videogames. The findings add to recent research exploring the mechanisms by which individuals engage in aggressive acts both virtually and in real-life situations. The results are discussed in relation to similar relevant research in the area, along with recommendations for future research.

The Design and Implementation of Multi-User Data Sharing Platform for Remote Monitoring System Based on Virtual Instruments

2014 ◽  
Vol 686 ◽  
pp. 220-225
Author(s):  
Guo Sheng Ma ◽  
Xiao Bo Xia
Keyword(s):  
Data Sharing ◽  
Monitoring System ◽  
Virtual Instrument ◽  
Virtual Testing ◽  
Testing Environment ◽  
Remote Monitoring System ◽  
Remote Transmission ◽  
Design And Implementation ◽  
User Data ◽  
Data Acquisition And Processing

Remote data monitoring system which adopts virtual instrument usually applies data sharing, acquisition and remote transmission technology via internet. It is able to finish concurrent data acquisition and processing for multi-user and multi-task and also build a personalized virtual testing environment for more people but with fewer instruments. In this paper, we’ll elaborate on the design and implementation of information sharing platform through a typical example of how to build multi-user concurrent virtual testing environment based on the virtual software LabVIEW.

Apply De Novo Programming in Pavement Maintenance Strategy Optimization

2013 ◽  
Vol 723 ◽  
pp. 805-811
Author(s):  
Ching Tsung Hung ◽  
Jyh Dong Lin ◽  
Pei Liu
Keyword(s):  
Subjective Experience ◽  
De Novo ◽  
Ideal Point ◽  
Pavement Management ◽  
Management Level ◽  
Pavement Maintenance ◽  
Highway Network ◽  
Maintenance Work ◽  
Technology Level ◽  
The Ideal

With the highway network of Taiwan is intact gradually, the management of highway engineering is improving technology level to management level. Reducing the influence with pavement deteriorating, improving the pavement age and achieving the need of pavement service quality, it is a pavement agencys object. Present maintenance work depend on subjective experience judgment of civil engineer, but the kind of method is lack systemic planning. In view of this, Pavement Management system use multi-objectives goal programming to solving priority with the pavement maintenance works. But the multi-objectives programming method is considering multiple-objective, so it cans satisfied the ideal point. The De Novo Method is a new method to approach the ideal point. We try to using this method to solving Taiwan Freeways maintenance work programming.

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