135 research outputs found
Inovação e outsourcing: o caso da Volkswagen do brasil
Today, information technology supports business operations, supply chain and business improvements for customers. This article analyzes the motivation that should be directed to the company to outsource activities, related to its engineering processes, concerned with the development of new products, taking into account the risks associated with outsourcing. Business Process Outsourcing is a strategic decision that presents results in the medium / long term. The empirical work that supports this work is titled "Outsourcing in the activities of development of new products, the case of Volkswagen do Brasil", elaborated by Pereira, Scur & Mello. This study is qualitative and was performed by sampling, through face-to-face interviews, recorded with the consent of the interviewees. Its main objective was to contribute to the development of business activity. The study identifies the reasons why an automotive company subcontracts "suppliers" to carry out its activities and develop new products. The conclusion of outsourcing is related to the lack of a resource for the ability to carry out an activity. They pointed out as risks of outsourcing, the leakage of knowledge, the loss of critical capacity and, consequently, the dependence on the supplier and finally the company's ability to acquire new technologies.Atualmente as tecnologias de informação sustentam operações empresariais, unem elos distantes de cadeias de fornecimento e ainda, empresas a clientes. Neste artigo analisamos as motivações que levam uma empresa a promover outsourcing de atividades, ligadas aos seus processos de engenharia, tendo como foco principal o desenvolvimento de novos produtos, sem descurar os riscos associados ao outsourcing. O Business Process Outsourcing é uma decisão estratégica, que apresenta resultados a médio/longo prazo. O trabalho empírico de suporte a este artigo intitula-se “Outsourcing nas atividades de desenvolvimento de novos produtos, o caso da Volkswagen do Brasil”, elaborado por Pereira, Scur & Mello. O estudo é qualitativo, pois foi realizado por amostragem, através de entrevistas presenciais, gravadas com autorização dos entrevistados. Este estudo contribui para o desenvolvimento da atividade empresarial. Identifica as razões pelas quais uma empresa do setor automóvel subcontrata “fornecedores” para realizar as suas atividades e desenvolver novos produtos. Conclui-se que a opção pelo outsourcing está relacionada com a falta de um determinado recurso ou capacidade para realizar a atividade. Foram apontados como riscos do outsourcing, a fuga de conhecimento, a perda de capacidade crítica e consequentemente, a dependência em relação ao fornecedor e ainda, a capacidade da empresa em adquirir novas tecnologias
A case study undertaken recycling & reuse of glass fiber reinforced thermoset polumer wastes of composite materials industry
Glass fibre-reinforced plastics (GFRP) have been considered inherently difficult to recycle due to both: crosslinked nature of thermoset resins, which cannot be remoulded, and complex composition of the composite itself.
Presently, most of the GFRP waste is landfilled leading to negative environmental impacts and supplementary added costs. With an increasing awareness of environmental matters and the subsequent desire to save resources, recycling would convert an expensive waste disposal into a profitable reusable material. In this study, efforts were made in order to recycle grinded GFRP waste, proceeding from pultrusion production scrap, into new and sustainable composite materials. For this purpose, GFRP waste recyclates, were incorporated into polyester based mortars as fine aggregate and filler replacements at different load contents and particle size distributions. Potential recycling solution was assessed by mechanical behaviour of resultant GFRP waste modified polymer mortars. Results revealed that GFRP waste filled polymer mortars present improved flexural and compressive behaviour over unmodified polyester based mortars, thus indicating the feasibility of the GFRP industrial waste reuse into concrete-polymer composite materials
Evolução estrutural dos sectores setentrionais do autóctone da Zona Centro-Ibérica
Em virtude de partilhar uma evolução geodinâmica associada ao ciclo varisco comum, a generalidade do autóctone da Zona Centro-Ibérica apresenta uma acentuada homogeneidade do ponto de vista litoestratigráfico, estrutural, magmático e metamórfico, o que permitiu a sua integração num mesmo domínio orogénico (Julivert et al, 1972). Contudo, a existência de alguma diversidade, principalmente a nível da geometria e cinemática das principais estruturas variscas, permite a individualização de subdomínios (para uma revisão ver Dias & Ribeiro, 2011); a região em torno do Complexo de Mantos Parautóctones do NE de Portugal (Rodrigues et al, 2011), a qual será abordada neste trabalho, constitui precisamente um destes subdomínio
Evolução estrutural dos sectores setentrionais do autóctone da Zona Centro-Ibérica
Em virtude de partilhar uma evolução geodinâmica associada ao ciclo varisco comum, a generalidade do autóctone da Zona Centro-Ibérica apresenta uma acentuada homogeneidade do ponto de vista litoestratigráfico, estrutural, magmático e metamórfico, o que permitiu a sua integração num mesmo domínio orogénico (Julivert et al, 1972). Contudo, a existência de alguma diversidade, principalmente a nível da geometria e cinemática das principais estruturas variscas, permite a individualização de subdomínios (para uma revisão ver Dias & Ribeiro, 2011); a região em torno do Complexo de Mantos Parautóctones do NE de Portugal (Rodrigues et al, 2011), a qual será abordada neste trabalho, constitui precisamente um destes subdomínio
Thick-skinned inter-plate and intra-plate tectonics in NW and SW Iberia
Na área de Abrantes (Zona Ossa Morena), o extremo NW da Zona de Cisalhamento de Tomar-Badajoz-Córdoba termina contra a
Zona de Cisalhamento Porto-Tomar-Ferreira do Alentejo. Mantos de carreamento de soco Cadomiano foram transportados para
NE durante a orogenia Varisca; granulitos de pressão intermédia/baixa contrastam com associações cadomianas de alta pressão
na zona axial da ZCTBC, devido à presença de uma sutura Cadomiana. O sistema intraplacas de mantos de soco da ZOM é
conectado via a paleotransformante PTFA com os mantos de soco do sistema interplacas da sutura transportada do NW Ibérico
Canciones mimadas en la guardería y el parvulario canción de mimos, niño encantado
Este artigo apresenta o projeto de intervenção pedagógica resultado da Prática de
Ensino Supervisionada, desenvolvido no âmbito do Mestrado em Educação Pré-Escolar, do
Instituto de Educação da Universidade do Minho, implementado nas valências de Jardim
de Infância e de Creche. O tema do projeto intitulou-se As Canções de Mimar no Jardim de
Infância e na Creche: Canção Mimada, Criança Encantada que emergiu após as observações
realizadas tendo em especial atenção os interesses dos grupos de crianças de cada contexto
pela música e cantar canções. Na abordagem deste tema pretendi envolver ao máximo a
participação das crianças de ambos os contextos de modo a cativá-las, motivá-las e a
entusiasmá-las na realização das atividades. No que concerne às metodologias que apoiaram
a concretização deste projeto a metodologia de investigação aproximou-se de uma
investigação-ação e metodologia de ensino baseou-se no modelo curricular High/Scope. Os
instrumentos de recolha de dados foram: observação, notas de campo e registos fotográficos.
Em referência aos dados obtidos constatou-se que os objetivos foram conseguidos, uma vez
que ao longo da implementação do projeto as crianças demonstraram-se motivadas,
empenhadas, participativas e, acima de tudo, encantadas, o que revela interesse e
contentamento pelo trabalho desenvolvido; as crianças adquiriram novas competências e
ampliaram também conhecimentos sobre a música, através das canções de mimar.This article presents the pedagogical intervention project resulting from the
Supervised Teaching Practice, developed within the scope of the Master's Degree in Preschool Education, of the Institute of Education of the University of Minho, implemented
in kindergarten and nursery school. The theme of the project was entitled The Mime Songs
in Kindergarten and Nursery School: Mimicking Songs, Enchanted Children, which emerged after
the observations made having in mind the interests of the groups of children in each context
for music and singing songs. In the approach of this theme I intended to involve the
maximum participation of the children of both contexts in order to captivate, motivate and
enthuse them in the performance of the activities. With regard to the methodologies that
supported the implementation of this project, the research methodology was close to an
action research and teaching methodology was based on the High/Scope curriculum model.
The data collection instruments were: observation, field notes and photographic records. In
reference to the data obtained it was found that the objectives were achieved, since
throughout the implementation of the project the children were motivated, engaged,
participatory and, above all, delighted, which shows interest and contentment for the work
developed; the children acquired new skills and also expanded knowledge about music,
through the pamper songs.Este artículo presenta el proyecto de intervención pedagógica resultante de la
Práctica Pedagógica Supervisada, desarrollada en el ámbito del Máster en Educación
Infantil, del Instituto de Educación de la Universidad de Minho, implementado en jardín
de infancia y guardería. El tema del proyecto se tituló Las canciones mímicas en el jardín de
infancia y guardería: canciones mímicas, niños encantados, que surgió después de las
observaciones realizadas teniendo en cuenta los intereses de los grupos de niños en cada
contexto para la música y cantar canciones. En el abordaje de este tema pretendí involucrar
la máxima participación de los niños de ambos contextos para cautivarlos, motivarlos y
entusiasmarlos en la realización de las actividades. En cuanto a las metodologías que
apoyaron la realización de este proyecto, la metodología de investigación se aproximó a una
investigación-acción y la metodología de enseñanza se basó en el modelo curricular
High/Scope. Los instrumentos de recogida de datos fueron: la observación, las notas de
campo y los registros fotográficos. En referencia a los datos obtenidos se constató que los
objetivos fueron alcanzados, ya que a lo largo de la implementación del proyecto los niños
se mostraron motivados, comprometidos, participativos y, sobre todo, encantados, lo que
demuestra interés y contento por el trabajo desarrollado; los niños adquirieron nuevas
habilidades y también ampliaron conocimientos sobre la música, a través de las canciones
mimadas
Continuous-flow precipitation as a route to prepare highly controlled nanohydroxyapatite
[Excerpt] Hydroxyapatite Ca10(PO4)6(OH)2 (HAp) has been widely used for biomedical purposes because of its exceptional biocompatibility, bioactivity and osteoconductivity [1]. As these properties are directly related to HAp particles characteristics (size, morphology and purity), a very good control of the reaction conditions is required to obtain particles with the desired properties. Usually, HAp is synthesized by wet chemical precipitation in stirred tank batch reactors that often lead to inconsistencies in product specifications due to their low mixing efficiency [2]. (...
Experimental study on polyester based concretes filled with glass fibre reinforced plastic recyclates – a contribution to composite materials sustainability
The development and applications of thermoset
polymeric composites, namely fibre reinforced plastics
(FRP), have shifted in the last decades more and more
into the mass market [1]. Despite of all advantages
associated to FRP based products, the increasing
production and consume also lead to an increasing
amount of FRP wastes, either end-of-lifecycle
products, or scrap and by-products generated by the
manufacturing process itself. Whereas thermoplastic
FRPs can be easily recycled, by remelting and
remoulding, recyclability of thermosetting FRPs
constitutes a more difficult task due to cross-linked
nature of resin matrix. To date, most of the thermoset
based FRP waste is being incinerated or landfilled,
leading to negative environmental impacts and
supplementary added costs to FRP producers and
suppliers. This actual framework is putting increasing
pressure on the industry to address the options
available for FRP waste management, being an
important driver for applied research undertaken cost
efficient recycling methods. [1-2]. In spite of this,
research on recycling solutions for thermoset
composites is still at an elementary stage. Thermal
and/or chemical recycling processes, with partial fibre
recovering, have been investigated mostly for carbon
fibre reinforced plastics (CFRP) due to inherent value
of carbon fibre reinforcement; whereas for glass fibre
reinforced plastics (GFRP), mechanical recycling, by
means of milling and grinding processes, has been
considered a more viable recycling method [1-2].
Though, at the moment, few solutions in the reuse of
mechanically-recycled GFRP composites into valueadded
products are being explored.
Aiming filling this gap, in this study, a new waste
management solution for thermoset GFRP based
products was assessed. The mechanical recycling
approach, with reduction of GFRP waste to powdered
and fibrous materials was applied, and the potential
added value of obtained recyclates was experimentally
investigated as raw material for polyester based
mortars. The use of a cementless concrete as host
material for GFRP recyclates, instead of a
conventional Portland cement based concrete, presents
an important asset in avoiding the eventual
incompatibility problems arisen from alkalis silica
reaction between glass fibres and cementious binder
matrix. Additionally, due to hermetic nature of resin
binder, polymer based concretes present greater ability
for incorporating recycled waste products [3].
Under this scope, different GFRP waste admixed
polymer mortar (PM) formulations were analyzed
varying the size grading and content of GFRP powder
and fibre mix waste. Added value of potential
recycling solution was assessed by means of flexural
and compressive loading capacities of modified
mortars with regard to waste-free polymer mortars
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