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21 Research products, page 1 of 3

  • Other research products
  • 2013-2022
  • Other ORP type
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  • Mémoires en Sciences de l'Information et de la Communication
  • Hal-Diderot
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  • Other research product . Other ORP type . 2016
    Open Access English
    Authors: 
    KOUTA, Nataly;
    Country: France

    Mémoire de stage; The use of adhesively bonded composite reinforcement for steel structures induce a closer study of the adhesive as it is considered the weakest point in the assembly. A reliable numerical damage model has been developed for the adhesively bonded joints and then verified for different types of configurations. A bi- linear traction separation description of a cohesive zone model was used in ABAQUS to simulate the damage evaluation in the adhesive. It was then compared to experimental results for the global structure behavior (local strains, applied load, applied displacement).; L'utilisation des renforcements par composites collés pour des structures métalliques implique une étude plus approfondie des adhésifs puisqu'il s'agit dans ce cas de l'élément le plus faible dans l'assemblage. Un modèle d'endommagement numérique a été développé pour le joint collé étudié et appliqué pour diffèrent type de configurations. Le modèle bi linéaire de traction- séparation (modèle de zone cohésives) est réalisé sur ABAQUS pour visualiser l'évaluation de l'endommagement de l'adhésive et pouvoir réaliser une comparaison avec les investigations expérimentales (déformation locale, effort appliqué, déplacement appliqué).

  • Other research product . Other ORP type . 2018
    Open Access English
    Authors: 
    Bocher, Erwan; Petit, Gwendall; Picaut, Judicaël; FORTIN, Nicolas; GUILLAUME, Gwenael;
    Country: France

    Présentation du projet NoiseCapture dans le cadre du séminaire Immersion Sciences 2018, organisé conjointement par l’Académiede Rennes, la région Bretagne et le CNRS.

  • Other research product . Other ORP type . 2013
    Open Access English
    Authors: 
    Vidal, Olivier; Weihed, Pär; Hagelüken, Christian; Bol, Derk; Christmann, Patrice; Arndt, Nicholas;
    Publisher: HAL CCSD
    Country: France
    Project: EC | AORVM (201312), EC | ERA-MIN (291870)

    European Research Area - Network on the Industrial Handling of Raw Materials for European Industries; roadmap of the "ERA-MIN" eranet; Non-energy and non-agricultural raw materials underpin the global economy and our quality of life. They are vital for the EU's economy and for the development of environmentally friendly technologies essential to European industries. However, the EU is highly dependent on imports, and securing supplies has therefore become crucial. A sustainable supply of mineral products and metals for European industry requires a more efficient and rational consumption, enhanced substitution and improved recycling. Recycling from scrap to raw materials has been rapidly gaining in quantity and efficiency over the last years. However, continuous re-use cannot provide alone the necessary quantities of mineral raw materials, due to i) recycling losses, ii) the worldwide growing demand in raw materials, and iii) the need of "new" elements for the industry. To fully meet future needs, metals and mineral products from primary sources will still be needed in the future. Most of them will continue to be imported from sources outside Europe; but others can, and should, be produced domestically. Advanced research and innovation are required to improve the capacity of existing technologies to discover new deposits, to improve the efficiency of the entire geomaterials life cycle from mineral extraction to the use as secondary resource of products at the end of their industrial life, and to reduce the environmental footprint of raw materials extraction and use. Research and innovation must be made to acquire knowledge as well, and to improve our basic understanding of all engineering and natural processes involved in the raw materials life cycle, as well as the coupling of these processes. Finally, research has to go beyond the present-day economic and technological constraints, and it should be closely associated with training and education in order to maintain existing skills and to share the most recent developments with the industrial sector. A long-term vision of research is necessary in order to have the capacity of evaluating the environmental and societal impacts of present and developing industrial activities and to imagine tomorrow's breakthrough concepts and technologies that will create new industrial opportunities. These objectives require the input of contrasted scientific and technical skills and competences (earth science, material science and technology, chemistry, physics, engineer, biology, engineering, environmental science, economy, social and human sciences, etc). An important challenge is to gather all these domains of expertise towards the same objective. The ERA-MIN Research Agenda aims at listing the most important topics of research and innovation that will contribute to i) secure the sustainable supply and management of non-energy and non-agricultural raw materials, and ii) offer opportunities of investment and employment opportunities in the EU.

  • Other research product . Other ORP type . 2015
    Open Access English
    Authors: 
    Bocher, Erwan; Picaut, Judicaël; Guillaume, Gwenaël; Petit, Gwendall; Fortin, Nicolas; Can, Arnaud; Palominos, Sylvain; Gauvreau, Benoit;
    Publisher: HAL CCSD
    Country: France

    We present at the LSSR journey, the ENERGIC-OD project and the application developed by the LAB-STICC (CNRS) and LEA (IFSTTAR) laboratories to collect noise data from smartphones.; We present the ENERGIC-OD project and the application developed by the LAB-STICC (CNRS) and LEA (IFSTTAR) laboratories to collect noise data from smartphones.

  • English
    Authors: 
    Ducruet, César;
    Publisher: HAL CCSD
    Country: France

    The research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013) / ERC Grant Agreement n. [313847] "World Seastems".; Globalisation and World Cities Research Bulletin 429; Maritime flows of merchant vessels can be seen as the only information allowing to map and analyze large-scale economic interactions at city level and on a world scale since the late nineteenth century with accuracy. This article maps the main trading routes among world regions and ranks port cities according to their connectivity in the global shipping network. Main results confirm the growing size and connectivity of the network alongside major local and regional shifts in terms of port growth trajectories. The research also discusses the resilience of certain ports to such dynamics.

  • Other research product . Other ORP type . 2017
    Open Access English
    Authors: 
    Chabot , Armelle;
    Publisher: HAL CCSD
    Country: France

    Invited presentation in conjunction with the grand opening of the MAPIL lab (Mizzou Asphalt Pavement and Innovation Laboratory) at the University of Missoury, Columbia (USA).http://moasphalt.org/wp-content/uploads/2017/03/MAPIL-Grand-Opening-March-27-Detailed-Program-final.pdf

  • English
    Authors: 
    HAIDAR, Bassem; Da Costa, Pascal; Lepoutre, Jan; Vidal, Fabrice;
    Publisher: HAL CCSD
    Country: France

    FAEE SEMINAR; Battery Electric Vehicles (BEVs) are essential for reducing greenhouse gas emissions related to the transport sector towards meeting global emissions targets. Although this technology is gaining much attention, techno-economic barriers hinder the widespread of BEVs, namely the high investments, the limited autonomy, and the lack of public-charging infrastructure. A bigger battery leads simultaneously to more autonomy and higher-priced BEV, due to the battery-pack cost. Deploying more public chargers, a solution for limited autonomy BEVs, is facing other obstacles: vehicle-charger adaptability in terms of charging power, and additional investments for charging operators. Therefore, this paper aims to find the most cost-efficient solution(s) of battery capacity and charging power combination(s), considering technoeconomic factors. Based on French travel surveys data, we simulate the needs of 12 scenarios of 5,000 identical privately-purchased BEVs, by changing their battery capacity for both urban and rural areas, before determining the optimal number of charging stations. We then analyze the BEV owner and the charging operator business models in order to conclude with win-win situations for both parties. Results show cheaper investments in charging infrastructure, especially 22 kW charger, rather than in bigger batteries. For urban (rural) areas, purchasing a 35 to 50 kWh BEV (65 kWh BEV for rural) and deploying 22 and 50 kW chargers (50 kW for rural) proves the most cost-efficient and profitable solutions for both BEV owners and charging operators. We finally recommend charging operators to review their charging tariffs, and to take into account the acceptability of customer.

  • Open Access English
    Authors: 
    Simon, Gwendal; Darchen, Sébastien; Roitman, Sonia;
    Publisher: HAL CCSD
    Country: France

    Crime and insecurity are deeply entrenched in some cities. While we have rankings of the most dangerous cities in the world, this does not give a clear picture of how and why dangerous spaces develop in cities. We are analysing case studies from cities in France, Colombia, Brazil and Australia to understand the factors that lead to insecurity, and to examine possible solutions.

  • Open Access English
    Authors: 
    WISMANS, Jac; WAAGMEESTER, Kees; LEMMEN, Paul; CARROLL, Jolyon; Beillas, Philippe;
    Publisher: HAL CCSD
    Country: France
    Project: EC | EPOCH (218744)

    Rapport d'expertise sur contrat en libre accès; This report is a follow-up of the EEVC report Q10 Dummy Report - Advanced Child Dummies and Injury Criteria for Frontal Impacts? published in January 2015 [1]. The Q-dummies were designed for both front and side impact test procedures but the main priority and focus in the development has been on frontal impacts. The work described in this report covers the use of the Q10 dummy in side impacts and is based largely on work done in the FP7 EPOCh project (Enabling Protection for Older Children, 2009-2011 [2]) and third party testing with the baseline Q10 dummy as used for frontal impacts as well as the of a special designed side impact kit for the Q10 dummy in the shoulder region. An overview of child injury causation for older children in side impacts is presented in Chapter 2, which comprises a synthesis of accident data sources that have been examined in the CREST and EPOCh projects.

  • Other research product . Other ORP type . 2017
    Open Access English
    Authors: 
    Golec, Karolina; Palierne, Jean-François; Zara, Florence; Nicolle, S; Damiand, Guillaume;
    Publisher: HAL CCSD
    Country: France
    Project: ANR | PRIMES (ANR-11-LABX-0063), ANR | Avenir L.S.E. (ANR-11-IDEX-0007)

    Work In Progress Session, VRIPHYS 2017: 13th Workshop on Virtual Reality Interaction and Physical Simulation, 23-24 April 2017, Lyon, France.; Cubic symmetric Mass-Spring Systems (MSS) for simulating isotropic elastic materials are known to be intrinsically limited by the Cauchy constraints (rari-constant theory) involving Poisson ratio of exactly ν = 1/4. To mitigate the impact of this restriction, we propose a new solution based on correction forces, which authorizes to use MSS for materials with ν ∈]0; 0.5[. The validation of our model is evaluated by comparing its response to various deformations with Finite Element Model (FEM). The results show that the proposed model is relevant to simulate any compressible isotropic elastic material, and in particular nearly incompressible (Poisson ratio ≃ 0.5) biological soft tissues for which it is dedicated.

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