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Academic literature on the topic 'Systèmes informatiques – Aspect environnemental'
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Journal articles on the topic "Systèmes informatiques – Aspect environnemental"
Duchemin, Marc, Marius Lachance, Guy Morin, and Robert Lagacé. "Approche géomatique pour simuler l'érosion hydrique et le transport des sédiments à l'échelle des petits bassins versants." Water Quality Research Journal 36, no. 3 (August 1, 2001): 435–73. http://dx.doi.org/10.2166/wqrj.2001.026.
Full textTchuidjan, Roger, and Max Jimmy Tchana Nkouimi. "Outil d’aide au dimensionnement des systèmes photovoltaïques domestiques." Journal of Renewable Energies 12, no. 3 (September 30, 2009). http://dx.doi.org/10.54966/jreen.v12i3.158.
Full textDissertations / Theses on the topic "Systèmes informatiques – Aspect environnemental"
Bourgeois, Guillaume. "Analyse et modélisation de l’impact environnemental du système d’information." Electronic Thesis or Diss., La Rochelle, 2023. http://www.theses.fr/2023LAROS023.
Full textDigital technology has become an integral part of our daily lives, but it has a significant environmental impact, particularly in terms of energy consumption, greenhouse gas production, electronic waste, water and air pollution, deforestation, and biodiversity loss. Organizations are becoming aware of their environmental responsibility and are seeking to reduce their carbon footprint related to information systems. To help organizations manage their IS carbon footprint, this thesis proposes a decision support framework based on a detailed modeling of the environmental impact of the information system. This framework identifies the most effective actions to reduce the environmental impact of the IS, taking into account the operational and financial constraints of the organizations. The WeNR tools are presented as concrete applications of this decision support framework, which allow measuring the environmental impact of the IS within organizations and proposing concrete measures to reduce it. Finally, the author presents the prospects of a responsible digital SaaS decision support tool that would automatically collect data on the organization’s digital carbon footprint, analyze it, propose specific actions to reduce it, and provide key environmental performance indicators
Chanet, Jean-Pierre. "Algorithme de routage coopératif à qualité de service pour des réseaux ad hoc agri-environnementaux." Clermont-Ferrand 2, 2007. http://www.theses.fr/2007CLF21745.
Full textDiattara, Awa. "Problématique de l'acquisition des connaissances dans des environnements informatiques fortement orientés connaissances : vers un outil auteur pour le projet AMBRE." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAM055/document.
Full textThe general issue we addressed in this thesis is the challenge of knowledge elicitation in Intelligent Tutoring Systems (ITS). In the context of this work, we are interested in ITS teaching problem solving methods. Teaching methods for solving problems consists in teaching students how to think about the problem before starting its resolution. In a given field, such a method is based on a categorization of problems. Knowing to recognize the class of a problem enables students to choose the resolution technique associated with this class. However, designing such ITS is tedious and costly, and specially require expertise in the application domain and in programming.In order to reduce the design cost of these ITS and to enable an author (for example a teacher) to be able to elicit knowledge needed without programming, we propose an interactive knowledge elicitation process. This process is implemented through the design of an authoring tool: AMBRE-KB. For that, we first propose meta-models for the knowledge to be acquired. This knowledge is not an expert knowledge, but knowledge such as we would want that they work at the end of the learning. Next, we propose a knowledge acquisition process based on these meta-models, which enable the author to be assisted in the elicitation process enabling him/her to build specific knowledge models for a given domain.We conducted two experiments to evaluate the knowledge acquisition process and its implementation in the AMBRE-KB tool. The first relates to completeness. The aim is to verify, for a given domain, whether the knowledge models generated by AMBRE-KB enable the solver to solve problems. The aim of the second experiment is to measure the utility and usability of AMBRE-KB. The results of both experiments are satisfactory
Lankri, Saïd. "Services et navigation pour personnes dépendantes en environnements domotiques." Lorient, 2009. http://www.theses.fr/2009LORIS167.
Full textOur work aims at providing everyday assistance to elderly and disabled people, at their homes or in medical facilities. This assistance takes the form of an assistive technology system called DANAH which delivers to the user the services available in its domotized environnement. From a user's perspective we provide both service activation and navigation. Services may be imple activation such as powering on the television or complex activations stored in macros of services called scenarios. Scenarios are useful when it comes to recording daily repetitive tasks in order to make them lighter to the user. Taling into account service failures, our work also focused on service recovery. This process is called reconfiguration and aims at suggesting alternative services to failed ones. Alternative may be defined off-line using rules or computed on-line using an effect-based mechanism. When the user navigates in its environment, the system may also trigger services on its own, depending on its location and the information stored in the environment topology. From a developer's perspective, we also defined a design flow that speeds up the creation and deployment of new user environments. This flow emphasizes on a graphical paradigm for environment design, component reuse, and automatic data generation using model transformations. Our work resulted in a real scale platform that uses a distributed approach in order to deliver services. Distribution allows the system to be installed both in small houses and large structures
Hossain, Mohaimenul. "Green Metrics to Improve Sustainable Networking." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0201.
Full textAchieving energy efficiency has in recent times become a major concern of networking research due to the ever-escalating power consumption and CO2 emissions produced by large data networks. This problem is becoming more and more challenging because of the drastic traffic increase in the last few years and it is expected to be increased even more in the coming years. Using efficient energy-aware strategies that could overturn this situation by reducing the electricity consumption as well as mitigating the environmental impact of data transmission networks. However, CO2 and energy consumption cannot be considered proportionate if the means of electricity production differs. This research work focuses on reducing the environmental impact of data transmission network by implementing energy aware routing, where unused network devices will be put into sleep/shut down and high capacity links will be adapted according to demand requirement. But, alongside with energy, this work has introduced two different metrics namely carbon emission factor and non-renewable energy usage percentage, which are considered as objective functions for designing green network. Here a centralized approach like using Software-Defined Networking (SDN), is used for designing to solve this problem as they allow flexible programmability suitable for this problem. Our proposal proposes a routing technique using genetic algorithm that minimizes the number of network-elements required and at the same time adapt the bandwidth capacity while satisfying an incoming traffic load. Different from existing related works, we focus on optimizing not only energy consumption but also carbon emission and non-renewable energy consumption in SDN in order to close this important gap in the literature and provide solutions compatible with operational backbone networks. Complementing the general aim of improving the environmental impact of data transmission network, this research is also intended to cover important related features such as realistic large demand size, network performance, and Quality of Service (QoS) requirements. At the same time this work focuses on network stability and analyzes the impact of network stability while implementing a green solution. Our work proposes a penalty and filtering mechanism which helps to find an optimal balance between stability and green networking. By using realistic input data, significant values of switched-off links and nodes are reached which demonstrate the effectiveness of our algorithm. The obtained result validated the importance of considering environmental factors rather than considering only energy. Results also show the trade-off between environmental and performance concerns, considering a couple of performance indicators. Moreover, it is shown that the penalty and filtering mechanism is an effective approach to avoid incoherent system and improve the stability of the system. As a whole, this conducted research and contributions reported through this manuscript stand as a valuable solution on the road to sustainable networking
Mahatody, Thomas. "Spécification et conception d’un environnement d’aide à l’inspection des Systèmes Interactifs, basé sur la méthode Cognitive Walkthrough." Valenciennes, 2010. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/acd7f7bf-f5fa-46cc-bb9c-2f35bf3f4b41.
Full textThis thesis is focused on the evaluation of interactive systems. It aims to contribute to the extension and equipment of the Cognitive Walkthrough method. This method is the subject of many studies and experiments worldwide. It has also undergone several modifications and extensions. Despite the interest in the method, its use poses many methodological and applicative problems. Firstly, this thesis describes the key elements related to human factors consideration in interactive system design and evaluation. Then, it proposes a state of the art on the evaluation of interactive systems based on the Cognitive Walkthrough method. Then the specification of an environment to support the inspection of interactive systems based on Cognitive Walkthrough is described. A mockup of an environment called CWE ("Cognitive Walkthrough Environment") is proposed; a first evaluation is exposed. A conclusion and perspectives end the thesis
Bohas, Amélie. "Vers une analyse de la relation systèmes d'information, développement durable et responsabilité sociale d'entreprise : l'adoption et l'évaluation du Green IT." Thesis, Lyon 3, 2013. http://www.theses.fr/2013LYO30076/document.
Full textThe reflection developed in this thesis is jointly inspired by research in strategic management and information systems (IS). It tends to analyze the relationship between the sustainable development (SD), the corporate social responsibility (CSR) and the information systems (IS) in addressing a new object in this field: Green IT. As not much research have yet been dedicated to this subject, it simultaneously aims to describe this emerging phenomenon, to understand the reasons for its adoption and its diffusion within organizations and to design instrumentation. The neo-institutional theory and the socio-rational approach to the diffusion of innovation have been mobilized to develop a framework for analysis of the adoption. A reflection on the value of Green IT was led and associated with a review of governance models to create a measuring instrument of Green IT. At the end of an engineering search, an evaluation tool of the eco-responsible maturity of IS, inspired by Balanced Scorecards, was co-built. It was then tested in two distinct organizational contexts providing a first interpretation of the phenomenon. To complete this vision and examine the factors that may affect the adoption of Green IT, a survey was then realized. The results highlight the importance of institutional pressures, expected benefits, perceived obstacles, environmental attitudes and the CSR policy in the decision to adopt
Serme, Gabriel. "Modularisation de la sécurité informatique dans les systèmes distribués." Thesis, Paris, ENST, 2013. http://www.theses.fr/2013ENST0063/document.
Full textAddressing security in the software development lifecycle still is an open issue today, especially in distributed software. Addressing security concerns requires a specific know-how, which means that security experts must collaborate with application programmers to develop secure software. Object-oriented and component-based development is commonly used to support collaborative development and to improve scalability and maintenance in software engineering. Unfortunately, those programming styles do not lend well to support collaborative development activities in this context, as security is a cross-cutting problem that breaks object or component modules. We investigated in this thesis several modularization techniques that address these issues. We first introduce the use of aspect-oriented programming in order to support secure programming in a more automated fashion and to minimize the number of vulnerabilities in applications introduced at the development phase. Our approach especially focuses on the injection of security checks to protect from vulnerabilities like input manipulation. We then discuss how to automate the enforcement of security policies programmatically and modularly. We first focus on access control policies in web services, whose enforcement is achieved through the instrumentation of the orchestration mechanism. We then address the enforcement of privacy protection policies through the expert-assisted weaving of privacy filters into software. We finally propose a new type of aspect-oriented pointcut capturing the information flow in distributed software to unify the implementation of our different security modularization techniques
Sobreira, Péricles de Lima. "T2/ediT2 : un modèle / système flexible et facile à utiliser pour l'édition et mise en oeuvre de scénarios d'apprentissage." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENM081/document.
Full textThe general issue considered in this research is the development of an adaptable and easy-to-use representation of learning scenarios in the form of a table (considered as an artefact of easy manipulation by teachers) associated with a computational model as a tree (as a way to integrate advanced services). In this way, teachers with basic technological skills and without methodological training can edit and operationalize learning scenarios from flexible and friendly graphical interfaces. Although this thesis has its focus on CSCL scripts, the table-tree-based approach (named T2) presents a more general interest. In a first moment, we implemented from this model a learning scenario editor (named ediT2) using notions from CSCL scripts. In a second moment, we considered generalization issues through the extension of the initial implementation, in order to allow teachers to edit their own notions and respective attributes. We investigated from different studies and experiments how teachers used our proposal considering as objectives/evaluation criteria the following features: (1) pedagogical expressiveness (can table-based editors represent a wide range of learning scenarios?); (2) usability (do teachers find the editor easy to use and intuitive?); (3) computational expressiveness (does the approach allow implementation of advanced services?), and; (4) computational flexibility (is the editor easy to adapt to local needs?)
Delsol, Céline. "Perspectives d'emploi en génie civil des cendres volantes de centrales thermiques équipées de systèmes de désulfuration primaire." Toulouse, INSA, 1995. http://www.theses.fr/1995ISAT0024.
Full textBooks on the topic "Systèmes informatiques – Aspect environnemental"
Green computing: Tools and techniques for saving energy, money, and resources. Boca Raton: CRC Press, 2014.
Find full textBrosnan, Mark J. Technophobia: The Psychological Impact of Information Technology. Taylor & Francis Group, 2002.
Find full textBrosnan, Mark J. Technophobia: The Psychological Impact of Information Technology. Taylor & Francis Group, 2002.
Find full textQuigley, Marian. Information Security and Ethics: Social and Organizational Issues. IRM Press, 2004.
Find full textInformation Security and Ethics: Social and Organizational Issues. IRM Press, 2004.
Find full textSkene, Keith Ronald. Artificial Intelligence and the Environmental Crisis: Can Technology Really Save the World? CRC Press LLC, 2019.
Find full textSkene, Keith Ronald. Artificial Intelligence and the Environmental Crisis: Can Technology Really Save the World? CRC Press LLC, 2019.
Find full textSkene, Keith Ronald. Artificial Intelligence and the Environmental Crisis: Can Technology Really Save the World? CRC Press LLC, 2019.
Find full textArtificial Intelligence and the Environmental Crisis. Taylor & Francis Group, 2020.
Find full textGreen Computing Chapman HallCRC Computational Science. CRC Press, 2012.
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