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24 Research products, page 1 of 3

  • Other research products
  • 2013-2022
  • English
  • Mémoires en Sciences de l'Information et de la Communication
  • Hal-Diderot
  • Transport Research

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  • Other research product . Other ORP type . 2020
    Open Access English
    Authors: 
    ZEGHNI, Sylvain;
    Publisher: HAL CCSD
    Country: France

    Il y a quelques jours, Stephen Roach, économiste renommé, a publié un remarquable article d'opinion dans le "Financial Times". Il a esquissé un avenir de stagflation (faible croissance et de forte inflation) en raison de la fragilité croissante des chaînes et de la baisse de la demande des consommateurs que le confinement a imposée.Selon nous, Stephen Roach a fondamentalement tort. En substance, cet argument réitère la crainte de nombreux nouveaux économistes classiques qui s'inspirent de l'affirmation de Milton Friedman selon laquelle l'inflation est toujours un phénomène monétaire.

  • Other research product . Lecture . 2015
    Open Access English
    Authors: 
    Renaudin, Valérie;
    Country: France

    Cours donné à BANFF (Canada) le 13 octobre 2015; Doctoral; Course Content: Context of the Inertial Navigation System (INS), the challenge of personal navigation with a handheld device and alternative positioning strategies.; Contenu du cours: Contexte du système de navigation inertielle (INS), le défi de la navigation personnelle avec un appareil portable et les stratégies de positionnement alternatives

  • 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;
    Publisher: HAL CCSD
    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.

  • 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 . 2015
    Open Access English
    Authors: 
    BOCHER, Erwan; PICAUT, Judicaël; GUILLAUME, Gwenaël; PETIT, Gwendall; FORTIN, Nicolas; CAN, Arnaud; PALOMINOS, Sylvain; GAUVREAU, Benoît;
    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.

  • Open Access English
    Authors: 
    Delaunay, Teddy;
    Publisher: HAL CCSD
    Country: France

    On-demand Ride-Hailing services (RHs) now play an increasing role within many cities around the world. RHs might increase traffic congestion, vehicle ownership and access inequalities. RHs pose significant challenges for policymakers, and addressing these issues requires detailed information about RHs use. But research on RHs services, especially in African cities, remains scarce. In this respect, this research presents original data on the use and users of RHs in Kenya’s capital, Nairobi, based on the results of an ad hoc survey designed by the author. This paper provides insights into who the users of RHs are, and their motivations for using RHs. Results show that RHs are extensively used in Nairobi (across all socio-economic groups, on a regular basis and way more for work-related trips than in many Western countries). In Nairobi, where only a minority of urban dweller have access to an individual motorized mode of transport, using RHs is gradually becoming necessary to access urban amenities. Nairobi’s inhabitants are facing a growing RHs dependency, which calls in return to public regulation.

  • Open Access English
    Authors: 
    Blanquart, Corinne; Chen, Chia-Lin; de URENA, José Maria; Delaplace, Marie; Gastineau, Pascal; Koning, Martin; LIEDTKE, Gernot; Pagliara, Francesca; YOSHINO, Naoyuki;
    Publisher: HAL CCSD
    Country: France

    _; This proposal adopts a holistic approach to strategic transport investment by discussing the wider economic impacts (WEIs) analysis method in terms of several dominant and emerging methods. The WEIs analysis goes beyond the effects captured in a standard cost-benefit analysis (CBA). A CBA addresses the market for transport services and infrastructure access but neglects the wider impacts on other markets. These wider impacts usually relate to agglomeration, market power, and the behavioral adaptions of firms and households. The high uncertainty in land use changes indicates that WEIs tend to occur in different forms on multiple spatial scales, varying by place and time. Additionally, some activities, such as education, have no direct market value, but may indirectly contribute to the overall economic output and human capital development in cities and regions. Given that the conventional elasticity methods are not goal oriented, it is important to ensure that the WEIs analysis accounts for the stakeholder-specific costs and benefits. Assuming that it is possible to consider all WEIs through theoretical models, major efforts should focus on establishing and maintaining appropriate methodologies and tools. The social and environmental data needed to address biodiversity issues should also be improved and promoted. Complementary to the WEIs, understanding how the behavior of agents changes in response to the new transport options will help clarify the long-term implications of transportation. This will suggest new strategies (territorial appropriation), approaches/ techniques to feasibility, and ?place-based? interrelations, that is, specific interrelations in places. This last aspect is especially important in the current context of the COVID-19 pandemic, which has affected and will likely change transportation behaviors and transport demand in the dynamic future.

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

    The regeneration of inner-city areas is a global challenge. Inner cities in France certainly have their problems, but the nation also has a good record of successful major urban regeneration projects. We have analysed three of these initiatives to understand what factors contribute to good regeneration outcomes. Urban regeneration can be defined as a holistic approach to revitalise under-used areas of the city. It's commonly associated, however, with the related challenges of gentrification, rising property values, and displacement of low-income groups. And these projects do not always achieve a sense of place.

Advanced search in
Research products
arrow_drop_down
Searching FieldsTerms
Any field
arrow_drop_down
includes
arrow_drop_down
Include:
24 Research products, page 1 of 3
  • Other research product . Other ORP type . 2020
    Open Access English
    Authors: 
    ZEGHNI, Sylvain;
    Publisher: HAL CCSD
    Country: France

    Il y a quelques jours, Stephen Roach, économiste renommé, a publié un remarquable article d'opinion dans le "Financial Times". Il a esquissé un avenir de stagflation (faible croissance et de forte inflation) en raison de la fragilité croissante des chaînes et de la baisse de la demande des consommateurs que le confinement a imposée.Selon nous, Stephen Roach a fondamentalement tort. En substance, cet argument réitère la crainte de nombreux nouveaux économistes classiques qui s'inspirent de l'affirmation de Milton Friedman selon laquelle l'inflation est toujours un phénomène monétaire.

  • Other research product . Lecture . 2015
    Open Access English
    Authors: 
    Renaudin, Valérie;
    Country: France

    Cours donné à BANFF (Canada) le 13 octobre 2015; Doctoral; Course Content: Context of the Inertial Navigation System (INS), the challenge of personal navigation with a handheld device and alternative positioning strategies.; Contenu du cours: Contexte du système de navigation inertielle (INS), le défi de la navigation personnelle avec un appareil portable et les stratégies de positionnement alternatives

  • 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;
    Publisher: HAL CCSD
    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.

  • 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 . 2015
    Open Access English
    Authors: 
    BOCHER, Erwan; PICAUT, Judicaël; GUILLAUME, Gwenaël; PETIT, Gwendall; FORTIN, Nicolas; CAN, Arnaud; PALOMINOS, Sylvain; GAUVREAU, Benoît;
    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.

  • Open Access English
    Authors: 
    Delaunay, Teddy;
    Publisher: HAL CCSD
    Country: France

    On-demand Ride-Hailing services (RHs) now play an increasing role within many cities around the world. RHs might increase traffic congestion, vehicle ownership and access inequalities. RHs pose significant challenges for policymakers, and addressing these issues requires detailed information about RHs use. But research on RHs services, especially in African cities, remains scarce. In this respect, this research presents original data on the use and users of RHs in Kenya’s capital, Nairobi, based on the results of an ad hoc survey designed by the author. This paper provides insights into who the users of RHs are, and their motivations for using RHs. Results show that RHs are extensively used in Nairobi (across all socio-economic groups, on a regular basis and way more for work-related trips than in many Western countries). In Nairobi, where only a minority of urban dweller have access to an individual motorized mode of transport, using RHs is gradually becoming necessary to access urban amenities. Nairobi’s inhabitants are facing a growing RHs dependency, which calls in return to public regulation.

  • Open Access English
    Authors: 
    Blanquart, Corinne; Chen, Chia-Lin; de URENA, José Maria; Delaplace, Marie; Gastineau, Pascal; Koning, Martin; LIEDTKE, Gernot; Pagliara, Francesca; YOSHINO, Naoyuki;
    Publisher: HAL CCSD
    Country: France

    _; This proposal adopts a holistic approach to strategic transport investment by discussing the wider economic impacts (WEIs) analysis method in terms of several dominant and emerging methods. The WEIs analysis goes beyond the effects captured in a standard cost-benefit analysis (CBA). A CBA addresses the market for transport services and infrastructure access but neglects the wider impacts on other markets. These wider impacts usually relate to agglomeration, market power, and the behavioral adaptions of firms and households. The high uncertainty in land use changes indicates that WEIs tend to occur in different forms on multiple spatial scales, varying by place and time. Additionally, some activities, such as education, have no direct market value, but may indirectly contribute to the overall economic output and human capital development in cities and regions. Given that the conventional elasticity methods are not goal oriented, it is important to ensure that the WEIs analysis accounts for the stakeholder-specific costs and benefits. Assuming that it is possible to consider all WEIs through theoretical models, major efforts should focus on establishing and maintaining appropriate methodologies and tools. The social and environmental data needed to address biodiversity issues should also be improved and promoted. Complementary to the WEIs, understanding how the behavior of agents changes in response to the new transport options will help clarify the long-term implications of transportation. This will suggest new strategies (territorial appropriation), approaches/ techniques to feasibility, and ?place-based? interrelations, that is, specific interrelations in places. This last aspect is especially important in the current context of the COVID-19 pandemic, which has affected and will likely change transportation behaviors and transport demand in the dynamic future.

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

    The regeneration of inner-city areas is a global challenge. Inner cities in France certainly have their problems, but the nation also has a good record of successful major urban regeneration projects. We have analysed three of these initiatives to understand what factors contribute to good regeneration outcomes. Urban regeneration can be defined as a holistic approach to revitalise under-used areas of the city. It's commonly associated, however, with the related challenges of gentrification, rising property values, and displacement of low-income groups. And these projects do not always achieve a sense of place.

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