scholarly journals Policy Disputes In BGP: Analysis, Detection And Proposed Solution

2021 ◽  
Author(s):  
Baha U. Kazi
Keyword(s):  
Selection Process ◽  
Path Selection ◽  
The Internet ◽  
Test Cases ◽  
Local Policy ◽  
Test Bed ◽  
Depth Analysis ◽  
Policy Conflicts ◽  
Local Policies ◽  
Destination Address

Border Gateway Protocol (BGP) is the de-facto inter-domain routing protocol in the Internet, which involves exchange of routing information among the ASes that is used by the routers in an AS to compute paths to destination address blocks or prefixes in the Internet. The BGP is a path-vector and policy-based routing that allows each AS to independently define a set of local policies for route selection. However, since routes are selected based on local policies of the ASes, it might cause global conflicts or network topology disputes among the ASes. In this thesis, first we present a survey and in-depth analysis of the existing available solutions and their implementations for the BGP policy induced faults. Then, we discuss the tool we have developed for identifying the BGP faults or route instability within an autonomous system due to local policy. Finally, we propose a new solution to detect and eliminate the route oscillation in the BGP best path selection process due to local policy conflicts among ASes. We also present the test cases that we developed using BGP simulator for simulating oscillation faults in the test-bed and then discuss their results.

scholarly journals Policy Disputes In BGP: Analysis, Detection And Proposed Solution

2021 ◽  
Author(s):  
Baha U. Kazi
Keyword(s):  
Selection Process ◽  
Path Selection ◽  
The Internet ◽  
Test Cases ◽  
Local Policy ◽  
Test Bed ◽  
Depth Analysis ◽  
Policy Conflicts ◽  
Local Policies ◽  
Destination Address

Border Gateway Protocol (BGP) is the de-facto inter-domain routing protocol in the Internet, which involves exchange of routing information among the ASes that is used by the routers in an AS to compute paths to destination address blocks or prefixes in the Internet. The BGP is a path-vector and policy-based routing that allows each AS to independently define a set of local policies for route selection. However, since routes are selected based on local policies of the ASes, it might cause global conflicts or network topology disputes among the ASes. In this thesis, first we present a survey and in-depth analysis of the existing available solutions and their implementations for the BGP policy induced faults. Then, we discuss the tool we have developed for identifying the BGP faults or route instability within an autonomous system due to local policy. Finally, we propose a new solution to detect and eliminate the route oscillation in the BGP best path selection process due to local policy conflicts among ASes. We also present the test cases that we developed using BGP simulator for simulating oscillation faults in the test-bed and then discuss their results.

Design and development of an intelligent system based on the Internet of Things for the early detection of forest fires

2022 ◽  
Vol 12 (2) ◽  
pp. 0-0
Keyword(s):  
Neural Network ◽  
Early Detection ◽  
Forest Fires ◽  
Mobile Applications ◽  
Intelligent System ◽  
The Internet ◽  
Scientific Practices ◽  
Depth Analysis ◽  
Neural Network Algorithm ◽  
The Internet Of Things

Automatic environmental monitoring is a field that encompasses several scientific practices for the assessment of risks that may negatively impact a given environment, such as the forest. A forest is a natural environment that hosts various forms of plant and animal life, so preserving the forest is a top priority. To this end, the authors of this paper will focus on the development of an intelligent system for the early detection of forest fires, based on an IoT solution. This latter will thus facilitate the exploitation of the functionalities offered by the Cloud and mobile applications. Detecting and predicting forest fires with accuracy is a difficult task that requires machine learning and an in-depth analysis of environmental conditions. This leads the authors to adopt the forward neural network algorithm by highlighting its contribution through real experiments, performed on the prototype developed in this paper.

scholarly journals Stability-based motion planning for a modular morphing wing

2021 ◽  
Author(s):  
Michael C. F. Kwong
Keyword(s):  
Selection Process ◽  
Static Stability ◽  
Path Selection ◽  
Critical Parameters ◽  
Morphing Wing ◽  
Wing Geometry ◽  
Variable Geometry Truss ◽  
Different Levels ◽  
Longitudinal Static Stability

Aircraft wing geometry morphing is a technology that has seen recent interest due to demand for aircraft to improve aerodynamic performance for fuel saving. One proposed idea to alter wing geometry is by a modular morphing wing designed through a discretization method and constructed using variable geometry truss mechanisms (VGTM). For each morphing maneuver, there are sixteen possible actuation paths for each VGTM module, and thus offering a three module morphing wing to have a total of 16(to the power of 3) permutations of actuation paths for one morphing maneuver. Focused on longitudinal static stability, critical parameters and aircraft stability theory, this thesis proposes a method to find an optimal actuation path for a designated maneuver iteratively. A case study of a three module morphing wing demonstrated the actuation path selection process. Numerically, different actuation paths had different levels of longitudinal static stability; these paths were drawn in CATIA and were visually verified.

Feasibility Analysis of Refuelling Infrastructure for Compressed Renewable Natural Gas Long-Haul Heavy-Duty Trucks in Canada

2021 ◽  
Author(s):  
Wahiba Yaïci ◽  
Michela Longo
Keyword(s):  
Natural Gas ◽  
Test Cases ◽  
Selling Price ◽  
Heavy Duty ◽  
Heavy Duty Truck ◽  
Transportation Sector ◽  
Depth Analysis ◽  
Harmful Emissions ◽  
Renewable Natural Gas ◽  
The Cost

Abstract With environmental concerns and limited natural resources, there is a need for cleaner sources of energy in the transportation sector. Renewable natural gas (RNG) is being considered as a potential fuel for heavy-duty applications due to its comparable usage to diesel and gasoline in vehicles. The idea of compressed RNG vehicles is being proposed especially because it will potentially significantly reduce harmful emissions into the environment. This initiative is taken in order to decrease vehicle emissions and support Canada’s commitments to the climate plans reinforcing active transportation infrastructure, in concert with new transit infrastructure, and zero emission vehicles. This study examines the feasibility of implementing a nationwide network of compressed RNG refuelling infrastructure in order to accommodate a conversion of Canada’s long-haul, heavy-duty truck fleet from diesel fuel to RNG. Two methods, Constant Traffic and Variable Traffic, along with data about compressed RNG infrastructure and vehicles, were developed and used to predict fuelling requirements for Canada’s long-haul, heavy-duty truck fleet. Then, a detailed economic analysis was conducted on various test cases to estimate how different variables impact the final selling price of RNG. This provided insight with the understanding of what factors go into pricing RNG and if it can compete against diesel in the trucking market. Results disclosed that the cost to purchase RNG is the greatest factor in the final selling price of compressed RNG. Due to the variability in RNG production however, there is no precise cost, which makes predictions difficult. However, results revealed that it is possible for compressed RNG to be competitive with diesel, with the mean compressed RNG price being 16.5% cheaper than diesel, before being taxed. Future studies should focus on the feasibility of the production of RNG and the associated costs, with emphasis on the Canadian landscape. An in-depth analysis on operational and maintenance costs for compressed RNG refuelling stations may also provide predictions that are more accurate.

Prospective Students' ZMOT in ICT-Based International Universities

2019 ◽  
pp. 195-214
Author(s):  
Jose Manuel Saiz-Alvarez ◽  
Oscar Alberto Hoyos-Villa
Keyword(s):  
Higher Education ◽  
Mexico City ◽  
Selection Process ◽  
Education Institution ◽  
Digital Marketing ◽  
The Internet ◽  
Prospective Students ◽  
Zero Moment ◽  
First Moment ◽  
Traditional Strategy

The zero moment of truth (ZMOT) is a concept related to marketing that is changing gradually the traditional strategy used to select a product or service offered in the market. This concept has gained popularity among consumers due to the internet, but ZMOT has been barely analyzed during the selection process of prospective students choosing an international HEI (higher education institution). The objective of this chapter is to reflect how the combination of ZMOT, FMOT (first moment of truth), and SMOT (second moment of truth) is a successful strategy for global universities based on digital marketing to attract prospective students. An educational procedure that can be followed by technology-driven international HEIs, and by universities aiming to attract prospective students. In this sense, the authors propose a brand-new concept entitled PSA (potential for student attraction) that they apply to two campuses (Guadalajara and Mexico City) of the Tecnológico de Monterrey, Mexico.

Risk and Governance Considerations in Cloud Era

2018 ◽  
pp. 439-472
Author(s):  
Mohammad Ali Shalan
Keyword(s):  
Cloud Computing ◽  
The Internet ◽  
Utility Computing ◽  
Governance Framework ◽  
Business Transformation ◽  
Computing Services ◽  
Depth Analysis ◽  
Special Approach

Cloud Computing (CC) has recently emerged as a compelling paradigm for managing and delivering computing services over the internet. It is rapidly changing the landscape of technology and ultimately turning the long-held promise of utility computing into a reality. Nevertheless, jumping into the cloud is never a trivial task. A special approach is required to discover and mitigate risks, also to apply controls related to the cloud jump. The main objective of this chapter is to specify some of the phenomena associated with the CC paradigm and associated business transformation. It looks at the motivations, contracting, obstacles and the agile project rollout methodologies. It then provides an in-depth analysis for the allied risks and governance directions. CC governance is being more crucial as the CC paradigm is still evolving. In this context, this chapter build few bricks toward a full Cloud Computing Risk and Governance Framework (CCRGF).

Quality Analysis of VoIP in Real-Time Interactive Systems over Lossy Networks

2015 ◽  
pp. 261-274
Author(s):  
Maha Z. Mouasher ◽  
Ala' F. Khalifeh
Keyword(s):  
Real Time ◽  
Packet Loss ◽  
Interactive Systems ◽  
Quality Analysis ◽  
The Internet ◽  
Test Bed ◽  
Lossy Networks ◽  
Packet Losses ◽  
Perceptual Evaluation ◽  
Voice Packets

Voice over Internet Protocol (VoIP) systems have been spreading massively during the recent years. However, many challenges are still facing this technology among which is the lossy behavior and the uncontrolled network impairments of the Internet. In this chapter, the authors design and implement a VoIP test-bed utilizing the Adobe Real-Time Media Flow Protocol (RTMFP) that can be used for many voice interactive applications. The test-bed was used to study the effect of changing some voice parameters, mainly the encoding rate and the number of frames per packet as function of the network packet loss. Several experiments were conducted on several voice files over different packet losses, concluding in the best combination of parameters in low, moderate, and high packet loss conditions to improve the performance of voice packets measured by the Perceptual Evaluation of Speech Quality (PESQ) values.

Risk and Governance Considerations in Cloud Era

2017 ◽  
pp. 376-409
Author(s):  
Mohammad Ali Shalan
Keyword(s):  
Cloud Computing ◽  
The Internet ◽  
Utility Computing ◽  
Governance Framework ◽  
Business Transformation ◽  
Computing Services ◽  
Depth Analysis ◽  
Special Approach

Cloud Computing (CC) has recently emerged as a compelling paradigm for managing and delivering computing services over the internet. It is rapidly changing the landscape of technology and ultimately turning the long-held promise of utility computing into a reality. Nevertheless, jumping into the cloud is never a trivial task. A special approach is required to discover and mitigate risks, also to apply controls related to the cloud jump. The main objective of this chapter is to specify some of the phenomena associated with the CC paradigm and associated business transformation. It looks at the motivations, contracting, obstacles and the agile project rollout methodologies. It then provides an in-depth analysis for the allied risks and governance directions. CC governance is being more crucial as the CC paradigm is still evolving. In this context, this chapter build few bricks toward a full Cloud Computing Risk and Governance Framework (CCRGF).

Much Loved transgressions: Morocco’s reflection in the mirror of its young prostitutes

2020 ◽  
Vol 12 (1) ◽  
pp. 3-16 ◽  
Author(s):  
Samia Charkioui
Keyword(s):  
Young Women ◽  
Turning Point ◽  
The Internet ◽  
National Cinema ◽  
The Public ◽  
Depth Analysis ◽  
Major Turning Point ◽  
History Of

Much Loved, a Moroccan movie by director Nabil Ayouch released in French cinemas in 2015 and selected at La Quinzaine des Réalisateurs in Cannes the same year, represents a major turning point in the history of national cinema. Officially banned from screens by the Moroccan Ministry of Communications one week after its premiere in Cannes, it unleashed an emotional storm and an unprecedented debate in the Moroccan society without ever having been seen by the public and only on the basis of some extracts leaked on the internet. The movie relates the lives of four young women living on prostitution in the touristic city of Marrakesh. This article provides an in-depth analysis of the factors of transgression carried by the movie and how they enable a better understanding of its violent mirroring impact on the Moroccan society.

A study on how to improve the throughput time of Lean Six Sigma projects in a construction company

2014 ◽  
Vol 5 (2) ◽  
pp. 212-226 ◽  
Author(s):  
Aat van den Bos ◽  
Benjamin Kemper ◽  
Vincent de Waal
Keyword(s):  
Six Sigma ◽  
Selection Process ◽  
Lean Six Sigma ◽  
Throughput Time ◽  
Content Type ◽  
Construction Company ◽  
Construction Companies ◽  
Project Completion ◽  
Depth Analysis ◽  
Improvement Programs

Purpose – The purpose of this paper is to study the use of the Lean Six Sigma (LSS) methodology in a construction company. Design/methodology/approach – In our study we analyze 62 LSS improvement projects carried out within a Dutch company. In our analysis we focus on both speed, in terms of throughput time (THT), and impact, in terms of project completion, of each project. Findings – From the analysis we conclude that the current THT of a project is about a year and we identify important factors that cause large project's THTs These factors are then translated into recommendations for an efficient execution of LSS improvement projects. Research limitations/implications – The analysis is based on a sample from one company of the Dutch construction industry. The scope should be broadened as more companies adopt quality and process improvement programs, such as LSS. Originality/value – The narrowed scope, only one company and focused mostly on the speed of projects, helped to do an in-depth analysis. Therefore, we are able to present concrete and useful recommendations that relate to practical issues in the execution of improvement projects. These recommendations offer a checklist for construction companies in the project selection process, in situations of starting or improving an LSS program

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