Search results for "production [gauge boson]"
showing 10 items of 179 documents
Embodied energy and environmental impacts of a biomass boiler: a life cycle approach
2015
The 2030 policy framework for climate and energy, proposed by the European Commission, aims towards the reduction of European greenhouse gas emissions by 40% in comparison to the 1990 level and to increase the share of renewable energy of at least the 27% of the European's energy consumption of 2030. The use of biomass as sustainable and renewable energy source may be a viable tool for achieving the above goals. However, renewable energy technologies are not totally clean because they cause energy and environmental impacts during their life cycle, and in particular they are responsible of air pollutant emissions. In this context, the paper assesses the energy and environmental impacts of a …
The impact of Kaizen Events on improving the performance of automotive components' first-tier suppliers
2009
Purpose - The aim of this paper is to explore the possibility of improving production indicators by implementing Kaizen Events. The teams are composed of both managers and operators with the aim of developing and/or implementing improvements in three to five days. Methodology - The empirical research will consists of the description of the results obtained in 11 industrial companies from the automotive components industry. In each company, we have followed up different interventions over a 9-12-month period. Findings - We shall present the initial situation, the activities carried out by the companies and the evolution of manufacturing performance approximately three months after the activi…
Life Cycle Assessment (LCA) of protected crops: an Italian case study
2012
Abstract In this paper a Life Cycle Assessment (LCA) of protected crops was carried out. In particular, energy and environmental performances of peppers, melons, tomatoes, cherry tomatoes, and zucchini in different typologies of greenhouses (tunnel and pavilion) were assessed. The study aimed at assessing the ecoprofile of each product and the share of each life-cycle step on the total environmental impacts. The related process flow chart, the relevant mass and energy flows and the key environmental issues were identified for each product. Collection of primary data was conducted by means of a detailed questionnaire distributed to a producer company in southern Italy. The analysis was devel…
Main Requirements of a Cyber Physical Production System Demonstrator
2019
Abstract The paper is focused on identifying the main requirements for developing a CPPS demonstrator prototype. This research aims to categorize the main components and interactions within a new manufacturing system which are required to accommodate a CPPS. The proposed CPPS demonstrator also includes the preliminary requirements identified from the discussions with the regional industry, so that the prototype of the production system could be easily understood and also be the basis for further collaborations. The identified requirements were structured according to the top-down principle focusing on accomplishing the major objectives to be achieved through the prototype of the production …
On the FSW of AA2024-T4 and AA7075-T6 T-joints: an industrial case study
2009
In this paper, the authors present the results of a wide experimental campaign on aeronautical T-shaped parts of industrial interest characterized by dissimilar materials for the skin and stringer. The friction stir welding process engineering was developed with the aim to determine the specific process parameters determining the soundness on the obtained T-parts both from the metallurgical and mechanical point of view. Furthermore, the performance of the obtained T-joints was investigated.
Decoding the Japanese Lean Production System according to a Viable Systems Perspective
2012
The increase in the complexity and variability of the business environment, due to constant and rapid changes in markets, calls for more flexible and effective production systems. Of the most valuable production systems, the Japanese lean production system (LPS) is the best known and studied, but is still not the most widely applied with success outside Japan. The reason for the low level of success of lean production outside its native country is the lack of understanding of the strong interactions which hold between enterprises and business systems. In order to fill this gap in our knowledge, we investigate the systemic interactions according to the Viable System View. To develop our anal…
Immigration, factor endowments and the productive structure of Spanish regions, 1996-2005.
2012
The participation of immigrants in the Spanish labour market has increased from less than 3% in 1996 to more than 13% in 2005. The factor proportion model of production was used to examine the impact of such a large labour supply shock on the industrial structure of Spanish regions. The results confirm that, first, labour endowment differences across regions help to explain the regional patterns of industry specialization. Second, immigrants and natives act as complementary factors in most industries. Third, the importance of immigration is relatively small compared with production technique changes and idiosyncratic industry changes in explaining the overall changes in industrial structure. …
Evidence for a Particle Produced in Association with Weak Bosons and Decaying to a Bottom-Antibottom Quark Pair in Higgs Boson Searches at the Tevatr…
2012
Aaltonen, T. et al.
HOLONIC PRODUCTION SYSTEM TO OBTAIN FLEXIBILITY FOR CUSTOMER SATISFACTION
2008
The Holonic Production System (HPS) can be a valid choice to overcome the problems of traditional production sys-tems’ architectures, thanks to its capability to adapt and react to changes in the business environment whilst being able to maintain systemic synergies and coordination. The HPS is made of holons seen as functional production units which are simultaneously autonomous and cooperative. Although the holonic approach could represent a valid solution in order to pursue the necessary levels of agility of production systems, they have been scarcely implemented in practice and even less studied from a business studies perspective. The purpose of this discussion paper is to show the bene…
Collaborative development of a CPS-based production system
2019
Abstract The paper describes the collaborative processes and technologies used to develop a prototype for a Cyber-Physical Production System of USB sticks. The development of this system follows the model-based approach where co-simulations of different components, detailed at different level of abstractions, serve as a basis for structured dialogue between specialised teams and agreement on shared interactions. The focus is primarily on the co-simulation technology, allowing a gradual increase of fidelity and independent testing and validation of the composing subsystems. This technology may be equally complemented with group decision-making tools to better support the collaboration during…