Application of Design of experiments on the simulation of a process in an automotive industry

The objective of this article is to apply the Design of experiments technique along with the Discrete Events Simulation technique in an automotive process. The benefits of the design of experiments in simulation include the possibility to improve the performance in the simulation process, avoiding trial and error to seek solutions. The methodology of the conjoint use of Design of Experiments and Computer Simulation is presented to assess the effects of the variables and its interactions involved in the process. In this paper, the efficacy of the use of process mapping and design of experiments on the phases of conception and analysis are confirmed. © 2007 IEEE.

Heating rate and temperature effects on the BaTiO3 formation by thermal decomposition of (Ba,Ti) organic precursors during the Pechini process

Different thermal treatments for the synthesis of BaTiO3 powder obtained through the Pechini method were studied. The synthesis of BaTiO3 starts at 150 °C by the thermal dehydration of organic precursors. The usual inevitable formation of barium carbonate during the thermal decomposition of the precursor could be retarded at lower calcination temperatures and optimized heating rates. The organic precursors were treated at temperatures between 200 and 400 °C. Then, the samples were calcined at 700 and 800 °C for 4 and 2 h, respectively. The resulting ceramic powders were characterized by gravimetric and differential thermal analyses, X-ray powder diffraction and infrared spectroscopy. It was found that depending on the heating rate and final temperature of the thermal treatment, high amounts of BaCO3 and TiO2 could be present due to the high concentration of organics in the final calcination step. © 2007 Elsevier B.V. All rights reserved.

Properties advanced of the silicon nitride based ceramics and recent performance on automotive parts manufacture by machining process: Advanced Ceramics, demand Forecast

Automotive parts manufacture by machining process using silicon nitride-based ceramic tool development in Brazil already is a reality. Si 3N4-based ceramic cutting tools offer a high productivity due to their excellent hot hardness, which allows high cutting speeds. Under such conditions the cutting tool must be resistant to a combination of mechanical, thermal and chemical attacks. Silicon nitride based ceramic materials constitute a mature technology with a very broad base of current and potential applications. The best opportunities for Si3N 4-based ceramics include ballistic armor, composite automotive brakes, diesel particulate filters, joint replacement products and others. The goal of this work was to show latter advance in silicon nitride manufacture and its recent evolution on machining process of gray cast iron, compacted graphite iron and Ti-6Al-4V. Materials characterization and machining tests were analyzed by X-Ray Diffraction, Scanning Electron Microscopy, Vickers hardness and toughness fracture and technical norm. In recent works the authors has been proved to advance in microstructural, mechanical and physic properties control. These facts prove that silicon nitride-based ceramic has enough resistance to withstand the impacts inherent to the machining of gray cast iron (CI), compacted graphite iron (CGI) and Ti-6Al-4V (6-4). Copyright © 2008 SAE International.

Optimal clone identifier based on dynamic rules and process algebra

The rule creation to clone selection in different projects is a hard task to perform by using traditional implementations to control all the processes of the system. The use of an algebraic language is an alternative approach to manage all of system flow in a flexible way. In order to increase the power of versatility and consistency in defining the rules for optimal clone selection, this paper presents the software OCI 2 in which uses process algebra in the flow behavior of the system. OCI 2, controlled by an algebraic approach was applied in the rules elaboration for clone selection containing unique genes in the partial genome of the bacterium Bradyrhizobium elkanii Semia 587 and in the whole genome of the bacterium Xanthomonas axonopodis pv. citri. Copyright© (2009) by the International Society for Research in Science and Technology.

Small- and medium-sized enterprises' restructuring in a context of transition: a shared process: inter-player effects on efficient boundary choice in the Argentine manufacturing sector

Includes bibliography

Report on maritime transport and the environment for Latin America

Includes bibliography

Informe de la Reunión sobre Crisis Externa: Proceso de Ajuste y su Impacto Inmediato y de Largo Plazo en el Desarrollo Social: ¿Qué hacer? = Report of the Meeting on Possible Measure to Deal with the Immediate and Long-term Impact on Social Development of the External Crisis and the Adjustment Process

Informe de la reunion que tuvo por objetivo: 1) considerar estrategias y propuestas de accion para superar la pobreza y lograr un desarrollo social armonico con el desarrollo economico; y 2) promover un analisis de la situacion del desarrollo social en la region, y especificamente de la naturaleza y caracteristicas de la pobreza en el marco de los factores estructurales y de los factores derivados del proceso de ajuste a la crisis externa.

Informe de la Reunión sobre Crisis Externa: Proceso de Ajuste y su Impacto Inmediato y de Largo Plazo en el Desarrollo Social. ¿Qué Hacer? = Report of the Meeting on Possible Measures to deal with the Immediate and Long-Term Impact on Social Development of the External Crisis and the Adjustment Process

Informe de la reunión que tuvo por objetivo: 1) considerar estrategias y propuestas de acción para superar la pobreza y lograr un desarrollo social armónico con el desarrollo económico; y 2) promover un análisis de la situación del desarrollo social en la región, y específicamente de la naturaleza y características de la pobreza en el marco de los factores estructurales y de los factores derivados del proceso de ajuste a la crisis externa.

La política de los países de América Latina y el Caribe en materia de transporte marítimo regular y la Convención de las NU sobre un Código de Conducta de las Conferencias Marítimas = Latin American and Caribbean liner shipping policies and the UN Convention on a Code of Conduct for Liner Conferences

Incluye Bibliografía

Progress of the Latin American and the Caribbean region towards sustainable development in the issues: human settlements, sanitation, water. Regional preparatory process for the Twelfth Session of the Commission on Sustainable Development

Includes bibliography