Mussot-Hoinard G.,CNRS Study of Microstructures, Mechanics and Material Sciences lab |
Elmay W.,CNRS Study of Microstructures, Mechanics and Material Sciences lab |
Peltier L.,ENSAM |
Laheurte P.,CNRS Study of Microstructures, Mechanics and Material Sciences lab
Journal of the Mechanical Behavior of Biomedical Materials | Year: 2017
In the present work, structural fatigue experiments were performed on a Ti-26Nb alloy subjected to different thermomechanical treatments: a severe cold rolling, a solution treatment and two aging treatments at low-temperature conducted after cold rolling in order to optimize the kinetics of precipitation. The aim is to investigate the effect of microstructural refinement obtained by these processes on fatigue performances. Preliminary tensile tests were performed on each state and analyzed in terms of the microstructure documented by using X-Ray diffraction and TEM analysis. These tests clearly promote the short-time-aged cold-rolled state with a fine α and ω phases precipitation. An interesting balance between mechanical properties such as high strength and low Young's modulus has been obtained. Cyclic bending tests were carried out in air at 0.5%, 1%, 2% and 3% imposed strain amplitudes. At low straining amplitude, where the fatigue performances are at their best, the cold-rolled state does not break at 3×106 cycles and the long-time aged precipitation hardened state seems to be a good competitor compared to the cold-rolled state. All failure characteristics are documented by Scanning Electron Microscopy (SEM) micrographs and analyzed in term of microstructure. © 2017 Elsevier Ltd
News Article | April 27, 2017
Genève, le 27 avril 2017 - STMicroelectronics (NYSE: STM) a annoncé aujourd'hui la nomination de Jean-Marc Chery au poste de Deputy CEO, effective le 1er juillet 2017. M. Chery occupe actuellement le poste de Chief Operating Officer et, dans ses nouvelles fonctions, il continuera à reporter à Carlo Bozotti, Président et CEO de ST. Dans ses nouvelles fonctions, M. Chery aura la responsabilité globale de la Technologie, du Manufacturing, ainsi que des Ventes et du Marketing. Une nouvelle organisation sera également mise en place. Son but est de continuer à capitaliser sur le succès de la stratégie de ST - le Smart Driving et l'Internet des Objets - avec une approche fondée sur l'innovation, marché par marché. Les membres de l'Executive Team seront : · Orio Bellezza, President, Global Technology and Manufacturing · Marco Cassis, President, Global Sales and Marketing · Claude Dardanne, President, Microcontrollers and Digital ICs Group · Carlo Ferro, Chief Financial Officer and President, Finance, Legal, Infrastructure and Services · Marco Monti, President, Automotive and Discrete Group · Georges Penalver, Chief Strategy Officer and President, Strategy, Communication, Human Resources and Quality · Benedetto Vigna, President, Analog, MEMS and Sensors Group. Ces nominations et cette nouvelle organisation seront effectives au 1er juillet 2017, sous condition d'approbation par les actionnaires du renouvellement du mandat de Carlo Bozotti comme seul membre du Directoire et Président et CEO de ST, lors de la prochaine Assemblée Générale Annuelle des Actionnaires. Informations complémentaires Jean-Marc Chéry a débuté sa carrière au sein de l'organisation Qualité du groupe français Matra. En 1986, il rejoint Thomson Semiconducteurs, devenu par la suite ST, où il occupe plusieurs fonctions de direction dans les domaines de la planification des produits et de la fabrication, l'amenant aux fonctions de Directeur général de l'usine de fabrication de tranches de silicium de Tours, puis de celle de Rousset. En 2005, M. Chery prend en charge les activités Front-End Manufacturing de ST dans la région Asie-Pacifique. En 2008, il est promu Chief Technology Officer et prend en charge les responsabilités additionnelles de la Production et de la Qualité (2011) et du secteur Produit Numériques (2012). En 2014, il est promu Directeur Général (Chief Operating Officer). Jean-Marc Chéry préside le conseil d'administration de STS, la société commune de production de ST en Chine, et est membre du conseil d'administration du programme européen de R&D en microélectronique AENEAS. Né à Orléans (France) en 1960, Jean-Marc Chéry est diplômé de l'École Nationale Supérieure d'Arts et Métiers (ENSAM) de Paris. A propos de STMicroelectronics ST, un leader mondial sur le marché des semiconducteurs, fournit des solutions et produits intelligents qui consomment peu d'énergie et sont au coeur de l'électronique que chacun utilise au quotidien. Les produits de ST sont présents partout, et avec nos clients, nous contribuons à rendre la conduite automobile, les usines, les villes et les habitations plus intelligentes et à développer les nouvelles générations d'appareils mobiles et de l'Internet des objets. Par l'utilisation croissante de la technologie qui permet de mieux profiter de la vie, ST est synonyme de « life.augmented ». En 2016, ST a réalisé un chiffre d'affaires net de 6,97 milliards de dollars auprès de plus de 100 000 clients à travers le monde. Des informations complémentaires sont disponibles sur le site : www.st.com. Relations avec les Investisseurs Céline Berthier Tél : +41.22.929.58.12 email@example.com Contacts presse Nelly Dimey Mobile : 06.75.00.73.39 firstname.lastname@example.org Alexis Breton Mobile : 06.59.16.79.08 email@example.com
News Article | April 27, 2017
Geneva, April 27, 2017 - STMicroelectronics (NYSE: STM) announced today the appointment of Jean-Marc Chery as Deputy CEO, effective July 1, 2017. Chery currently serves as Chief Operating Officer and, in his new role, he will continue to report to Carlo Bozotti, ST's President and CEO. In this new role, Chery will hold overall responsibility for Technology and Manufacturing as well as for Sales and Marketing. A new organization will be also put in place. Its goal is to continue to build on the success of ST's strategy, focused on Smart Driving and Internet of Things, with a strong market-driven and innovation approach. ST's Executive Team members will be: · Orio Bellezza, President, Global Technology and Manufacturing · Marco Cassis, President, Global Sales and Marketing · Claude Dardanne, President, Microcontrollers and Digital ICs Group · Carlo Ferro, Chief Financial Officer and President, Finance, Legal, Infrastructure and Services · Marco Monti, President, Automotive and Discrete Group · Georges Penalver, Chief Strategy Officer and President, Strategy, Communication, Human Resources and Quality · Benedetto Vigna, President, Analog, MEMS and Sensors Group. These appointments and new organization are effective July 1st, 2017, upon shareholder approval of the reappointment of Carlo Bozotti as the sole member of the Managing Board and President and CEO of ST, at the Company's next Annual General Meeting. Note for editors Chery began his career in the Quality organization of Matra, the French engineering group. In 1986, he joined Thomson Semiconducteurs, which subsequently became ST, and held various management positions in product planning and manufacturing, rising to lead ST's wafer fabs in Tours, France, and later in Rousset, France. In 2005, Chery took charge of ST's Front-End Manufacturing in Asia Pacific. In 2008, he was promoted Chief Technology Officer and assumed additional responsibilities for Manufacturing and Quality (2011) and the Digital Product Sector (2012). In 2014, he was promoted Chief Operating Officer. Chery chairs the Board of STS, ST's manufacturing joint venture in China, and holds board membership at the European microelectronics R&D program AENEAS. Jean-Marc Chery was born in Orleans, France, in 1960, and graduated with a degree in Engineering from the ENSAM engineering school in Paris, France. About STMicroelectronics ST is a global semiconductor leader delivering intelligent and energy-efficient products and solutions that power the electronics at the heart of everyday life. ST's products are found everywhere today, and together with our customers, we are enabling smarter driving and smarter factories, cities and homes, along with the next generation of mobile and Internet of Things devices. By getting more from technology to get more from life, ST stands for life.augmented. In 2016, the Company's net revenues were $6.97 billion, serving more than 100,000 customers worldwide. Further information can be found at www.st.com. For further information, please contact: INVESTOR RELATIONS: Tait Sorensen Group VP, Investor Relations STMicroelectronics Tel: +1 602 485 2064 firstname.lastname@example.org MEDIA RELATIONS: Nelly Dimey Director, Corporate Media and Public Relations Tel: + 33 1 58 07 77 85 email@example.com
Liang S.,University of Burgundy |
Gning P.B.,University of Burgundy |
Composites Science and Technology | Year: 2012
Experimental investigations on flax and glass fabrics reinforced epoxy specimens, i.e. FFRE and GFRE, submitted to fatigue tests are presented in this paper. Samples having [0/90] 3S and [±45] 3S stacking sequences, with similar fibre volume fractions have been tested under tension-tension fatigue loading. The specific stress-number of cycles to failure (S-N) curves, show that for the [0/90] 3S specimens, FFRE have lower fatigue endurance than GFRE, but the [±45] 3S FFRE specimens offer better specific fatigue endurance than similar GFRE, in the studied life range (<2×10 6). Overall, the three-stage stiffness degradation is observed in all cases except for [0/90] 3S FFRE specimens, which present a stiffening phenomenon of around 2-3% which could be related to the straightening of the microfibrils. © 2012 Elsevier Ltd.
Chevalier D.,ENSAM |
Cezard P.,ACM |
Langlois L.,ENSAM |
Key Engineering Materials | Year: 2015
To reduce production costs and to improve performances of hot rolled products, an optimization of the production line is required. The rolling mill is one of the most influent steps on the internal quality of produced parts. In fact the process tends to reduce the size of defects during the strain. The production line composed by 24 stands has been implemented in a commercial simulation tool named FORGE®. First, a model has been developed and adjusted according to the industrial data. Then a parametric study was carried out in order to evaluate the influence of the process parameters on the internal quality of the rolled material. © (2015) Trans Tech Publications, Switzerland.
Obikane Y.,ENSAM |
World Academy of Science, Engineering and Technology | Year: 2011
In the upstream we place a piece of ring and rotate it with 83Hz, 166Hz, 333Hz,and 666H to find the effect of the periodic distortion.In the experiment this type of the perturbation will not allow since the mechanical failure of any parts of the equipment in the upstream will destroy the blade system. This type of study will be only possible by CFD. We use two pumps NS32 (ENSAM) and three blades pump (Tamagawa Univ). The benchmark computations were performed without perturbation parts, and confirm the computational results well agreement in head-flow rate. We obtained the pressure fluctuation growth rate that is representing the global instability of the turbo-system. The fluctuating torque components were 0.01Nm(5000rpm), 0.1Nm(10000rmp), 0.04Nm(20000rmp), 0.15Nm(40000rmp) respectively. Only for 10000rpm(166Hz) the output toque was random, and it implies that it creates unsteady flow by separations on the blades, and will reduce the pressure loss significantly.
Ahmadi A.,ENSAM |
Ben-Azza H.,ENSAM |
El Bouanani F.,Mohammed V University
2014 World Congress on Computer Applications and Information Systems, WCCAIS 2014 | Year: 2014
This paper presents four new iterative decoders for two dimensional product block codes (2D-PBC) based on Genetic Algorithms. Each of these iterative decoders runs in parallel on a number of processors connected by a network. They have almost the same complexity as the conventional iterative decoder, but their performances are improved since at each iteration, they trap the better of extrinsic information computed by the elementary decoders running simultaneously on all processors. © 2014 IEEE.
Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas | Year: 2010
The extra cost of the measures taken to protect a building against seismic risk is higher concerning old buildings than new designed ones. But since more than 80% of buildings were designed before the new seismic codes, it is a huge heritage waiting to manage, with great priority. Sophisticated methodologies are emerging in Seismic Engineering, as the Performance Based Earthquake Engineering, PEER. We improved the decision analysis model, and we proposed a multidisciplinary approach dealing with different classes of buildings and different seismic regions to solve, without restriction, the particular case of France. It allows sharing the responsibility by all, in order to convince people to rehabilitate their structures by including them in the decision process.
Gournay P.,French National Laboratory of Metrology and Testing |
Thevenot O.,French National Laboratory of Metrology and Testing |
Dupont L.,French National Laboratory of Metrology and Testing |
David J.M.,ENSAM |
Piquemal F.,French National Laboratory of Metrology and Testing
Canadian Journal of Physics | Year: 2011
This paper reports on the current development of a new Thompson-Lampard calculable capacitor at LNE. The goal is to determine the von Klitzing constant R K at a significant level of uncertainty of about one part in 10 8. The comparison with other accurate measurements of h/e2 serves as a relevant test of validity of the theory predicting R K = h/e 2, a decisive issue within the context of the new SI. Conversely, assuming that this relation is exact, the measurement of R K and thus that of the fine structure constant can be used for testing quantum electrodynamics theory. The mechanical structure of the new LNE calculable cross capacitor has been designed and a new set of electrodes has been fabricated. The assembling of the calculable capacitor is in progress.
News Article | March 4, 2016
Abstract: GLOBALFOUNDRIES, a leading provider of advanced semiconductor manufacturing technology, announced today that Alain Mutricy has joined the company as senior vice president of the Product Management Group. In this role, Mutricy is responsible for the companys leading edge and mainstream technology solutions and go-to-market activities for these differentiated products. Mutricy succeeds Mike Cadigan, who will transition to a newly created role as senior vice president of global sales and business development. Alain is an accomplished senior executive with more than 25 years of experience in the consumer electronics, mobile, and semiconductor industries, said GLOBALFOUNDRIES CEO Sanjay Jha. He brings a strong portfolio of successes contributing to growth, profitability, and competitiveness for global product organizations, which will help him build on the strong foundation we have already established in our product management group. I am thrilled to welcome Alain to the GLOBALFOUNDRIES team. Before joining GLOBALFOUNDRIES, Mutricy was founder and executive adviser at AxINNOVACTION, a consulting firm that promotes action to unlock and accelerate innovation in big organizations, as well as co-founder and CEO of Vuezr, which attempted to revolutionize mobile direct marketing by delivering product visual recognition to consumers mobile devices via augmented reality. From 2007-2012, Mutricy served as senior vice president of portfolio and device product management for mobile devices at Motorola Mobility Holdings, Inc., where he led a global team responsible for defining the companys mobile devices product portfolio strategy and structure. He and his team advanced a strategic focus on Android-based smartphones, which included the widely acclaimed family of DROID by Motorola products. During his tenure at Motorola Mobility, Mutricy was also responsible for defining and directing the Mobile Devices business units global strategy for silicon and software platforms, as well as leadership of a global R&D team responsible for designing and implementing integrated circuits, wireless chipset solutions, platform software, product software for non-CDMA products, and an ecosystem strategy for mobile devices. Prior to joining Motorola in 2007, Mutricy served at Texas Instruments for 18 years, where he was promoted to vice president in January 2002. From 2004 until his departure from Texas Instruments, Mutricy served as vice president and general manager for the companys Cellular Systems Solutions business. In that role, he was responsible for commercializing and building a leadership position for the companys wireless chipset solutions for GSM/GPRS/EDGE/3G and OMAP application processors. Prior to leading Cellular Systems Solutions, Mutricy was general manager for the Texas Instruments OMAP business, which he led from start-up status to global leadership between 2000 and 2004. Additionally, from the time he joined Texas Instruments in 1989, Mutricy was promoted through a series of general- management positions, each with increasing scope and responsibility in areas including sales, marketing and general management. Mutricy holds a masters degree in engineering from ENSAM and an MBA from HEC Groupboth in Paris. About GLOBALFOUNDRIES GLOBALFOUNDRIES is the worlds first full-service semiconductor foundry with a truly global footprint. Launched in March 2009, the company has quickly achieved scale as one of the largest foundries in the world, providing a unique combination of advanced technology and manufacturing to more than 250 customers. With operations in Singapore, Germany and the United States, GLOBALFOUNDRIES is the only foundry that offers the flexibility and security of manufacturing centers spanning three continents. The companys 300mm fabs and 200mm fabs provide the full range of process technologies from mainstream to the leading edge. This global manufacturing footprint is supported by major facilities for research, development and design enablement located near hubs of semiconductor activity in the United States, Europe and Asia. GLOBALFOUNDRIES is owned by Mubadala Development Company. For more information, please click If you have a comment, please us. Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.