Articles dans des revues sans comité de lecture
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Guaranteeing information integrity and access control in smart cities through blockchain
The distributed devices in a smart city are characterized by different degrees of sensitivity. Some of them can be accessed by everyone whereas others are limited to a specific class of users (subjects). Therefore, we created an access control system named (Subject-Object-Task System) supported by blockchains that sort processes applied by subjects on smart devices. […]
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A SPARQL-based framework to preserve privacy of sensitive data on the semantic web
Over the last few years, the web of data has been evolved. Indeed, it allows sharing of a significant interconnection of a huge amount of data in several domains and it keeps increasing continuously. Due to the confidential nature of some data, sectors such as health, financial, and government, it have limited participation with fewer […]
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PUF-based mutual authentication and session key establishment protocol for IoT devices
The Internet of things (IoT) is an indispensable part of our daily lives, bringing us many conveniences, including e-commerce and m-commerce services. Unfortunately, IoT networks suffer from several security issues, such as privacy, access control, and authentication. However, due to the limited computation resources, remote authentication between IoT devices and servers is vulnerable to being […]
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A framework for modeling and analyzing cyber-physical systems using statistical model checking
The trustworthiness of a cyber–physical system is essential for it to be qualified for utilization in most real-life deployments. This is especially critical for systems that deal with precious human lives. Although these safety-critical systems can be investigated using both experimental testing and model-based verification, accurate models have the potential to permit risk-free mimicking of […]
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Investigation Properties of Pervious and Water-Retaining Recycled Concrete to Mitigate Urban Heat Island Phenomena
The urban heat island (UHI) effect poses significant challenges to urban environmental quality and public health. Over the decades, research efforts have been made to develop various UHI mitigation strategies, including pavement materials, such as, water-retentive pavement, reflective pavement, and pervious concrete. This paper focuses on the improvement of the hygric and water retention properties […]
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Pour une approche mésologique des « environnements capacitants » dans une perspective d’ingénierie
Le concept d’environnement capacitant est généralement abordé à partir de la théorie des capabilités d’Amartya Sen, rarement à partir des théories qui s’intéressent d’abord à l’autre partie du syntagme, à savoir l’environnement. Pourtant, certaines approches, comme la mésologie d’Augustin Berque, ou la théorie des affordances, de James J. Gibson, peuvent utilement compléter la conceptualisation des […]
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Buckling of Timoshenko beam under two-parameter elastic foundations
This paper exposes buckling solutions of a plane, quasi-static Timoshenko beam with small transformation subjected to a longitudinal force and surrounded by an elastic wall modeled by two-parameter elastic foundations. A non-dimensional analysis of associated Haringx and Engesser model is performed and buckling stress and shape are exposed analytically. Relations for rigidity of the wall […]
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Explicit analysis of large transformation of a Timoshenko beam: post-buckling solution, bifurcation, and catastrophes
This paper exposes full analytical solutions of a plane, quasi-static but large transformation of a Timoshenko beam. The problem is first re-formulated in the form of a Cauchy initial value problem where load (force and moment) is prescribed at one end and kinematics (translation, rotation) at the other one. With such formalism, solutions are explicit […]
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Urban Heat Island Causes, Consequences, and Mitigation Measures with Emphasis on Reflective and Permeable Pavements
Economic and social development of urban and rural areas continues in parallel with the increase of the human population, especially in developing countries, which leads to sustained expansion of impervious surface areas, particularly paved surfaces. The conversion of pervious surfaces to impervious surfaces significantly modifies local energy balance in urban areas and contributes to urban […]
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tout problème de compétence ne relève pas d’un problème de formation
En effet, il m’arrive même, régulièrement, de dire que l’on évalue les individus alors qu’il faudrait également évaluer les organisations. Pour le comprendre, il faut revenir à la notion même de compétence et prendre en compte le fait qu’elle puisse être état, produit et processus ; bagage, résultat ou chemin. Lorsque l’on évalue les compétences […]
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Photoluminescence and dielectric properties of (Al/Cu) and (In/Cu) co-doped ZnO sprayed thin films under the oxygen deficiency conditions
This work focuses on the study of the transport of charge carriers in Al (1%)/Cu (1%) and In (1%)/Cu (1%) co-doped ZnO thin films prepared on glass substrates heated at 460°C using the spray pyrolysis method. Each ratio of doping element is equal to 1% (M/Zn=1%, M=Al, In, Cu) in the starting solutions. First, SEM […]
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Photocatalytic degradation and photo-generated hydrophilicity of Methylene Blue over ZnO/ZnCr2O4 nanocomposite under stimulated UV light irradiation
This paper deals with the relationship between photocatalysis and photo-generated hydrophilicity under UV light irradiation of ZnO/ZnCr2O4 nanocomposite film prepared via spray pyrolysis method. XRD investigations indicate that the nanocomposite sample show the presence of würtzite ZnO phase having crystallites oriented preferentially along c-axis with the presence of a secondary phase spinel of ZnCr2O4. Indeed, […]
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