Messeni Petruzzelli A.,Polytechnic of Bari |
Savino T.,University of San Marino
Long Range Planning | Year: 2014
This study investigates the impact of searching and recombining old components in the development of successful innovations. Specifically, we identify the main characteristics of old components that contribute to enhance the value of innovations, as well as the mechanisms underlying their recombination. To this aim, we conduct an in-depth case study of the innovation process, characterizing the Danish haute cuisine chef René Redzepi, whose restaurant Noma was voted the best restaurant in the world in the 2010, 2011, and 2012 San Pellegrino Awards. Our analysis reveals that searching and recombining components across time may be beneficial for the success of an innovation, especially when they are culturally close to the inventor and relatively unexploited in the specific industry. Moreover, the positive contribution of old components is enhanced when they are recombined with other geographically proximate elements and when new techniques and solutions are employed. © 2012 Elsevier Ltd.
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: ICT-14-2014 | Award Amount: 7.99M | Year: 2015
5G will have to cope with a high degree of heterogeneity in terms of: (a) services (mobile broadband, massive machine and mission critical communications, broad-/multicast services and vehicular communications); (b) device classes (low-end sensors to high-end tablets); (c) deployment types (macro and small cells); (d) environments (low-density to ultra-dense urban); (e) mobility levels (static to high-speed transport). Consequently, diverse and often contradicting Key Performance Indicators need to be supported, such as high capacity/user-rates, low latency, high reliability, ubiquitous coverage, high mobility, massive number of devices, low cost/energy consumption. 4G is not designed to meet such a high degree of heterogeneity efficiently. Moreover, having multiple radio access technologies for multi-service support below 6GHz will be too costly. FANTASTIC-5G will develop a new multi-service Air Interface (AI) for below 6 GHz through a modular design. To allow the system to adapt to the anticipated heterogeneity, the pursued properties are: flexibility, scalability, versatility, efficiency, future-proofness. To this end, we will develop the technical AI components (e.g. flexible waveform and frame design, scalable multiple access procedures, adaptive retransmission schemes, enhanced multi-antenna schemes with/without cooperation, advanced multi-user detection, interference coordination, support for ultra-dense cell layouts, multi-cell radio resource management, device-to-device) and integrate them into an overall AI framework where adaptation to the above described sources of heterogeneity will be accomplished. Our work will also comprise intense validation and system level simulations. FANTASTIC-5G includes partners being active in forerunning projects like METIS, 5GNOW and EMPATHIC ensuring the exploitation of the respective outcomes. The consortium possesses the main stakeholders for innovation and impacting standardization, maintaining Europe at the forefront.
Agency: European Commission | Branch: FP7 | Program: CP-FP | Phase: SPA.2012.3.1-01 | Award Amount: 1.95M | Year: 2012
Space system vendors seek for solutions to deliver small size and cost-effective sensor systems to de-congest satellite payloads, drastically reduce the equipment cost and open the possibility for new generation of micro-payload systems. MERMIG aims to provide this technology replacing current expensive, bulky, heavy and power-consuming fiber optic gyroscopes (FOGs). To address these key challenges, MERMIG invests in the right mix of silicon photonic CMOS-compatible component fabrication and nano-imprint lithography laser fabrication. Both technologies are being adopted by the terrestrial telecom market and MERMIG will develop them for bringing their unique advantages into space sensor systems. MERMIG will squeeze the bulky FOG into a couple of cm2, integrating a racetrack cavity, pin junctions and a phase decoder into compact sub-micron waveguides. The MERMIG smart packaging technique will allow power-efficient optical pumping and hermetic packaging of the gyro-photonic chip. MERMIG will develop the first 1550nm high-power laser with a fiber-coupled power of 150mW using an integrated laser MOPA, fabricated with advanced nano-imprint lithography (NIL). The 150mW delivered will enable a modular architecture, with pump sharing among 3 integrated silicon lasing cavities, for 3-axis sensing. The single-step NIL process enables fast wafer scale patterning and ensures low-cost and high-volume laser production. Finally, MERMIG will bring together photonics and electronics on a fully-functional opto-electronic gyroscope system prototype characterized according to ASTRIUM testplan procedures. MERMIG will deliver to ASTRIUM a new generation gyroscope that will weigh <1kg, consume <5W electrical power in a few cm3 footprint. The angle random walk range that will be feasible within MERMIG is 0.1 0.01 deg/sqrt(hr) suitable for telecommunications and scientific satellites. The technology full potential can allow for future opto-electronic integration of photonic gyroscopes-on-a-chip.
Agency: European Commission | Branch: FP7 | Program: MC-IRSES | Phase: FP7-PEOPLE-2012-IRSES | Award Amount: 294.50K | Year: 2013
We propose an exchange programme to promote the scientific collaboration in particle physics and related technologies between a network of Egyptian Universities and EU member states Academic Institutions which have already originated innovative transfer of knowledge towards Egypt. The main objectives of the joint exchange programme are: the reinforcement of the Europe-Egypt scientific collaboration. In particular in past years both France and Italy have funded initiatives in the field of particle physics and related technologies to boost Egyptian interest and personnel training. The present proposition intends to further improve the collaboration by especially allowing long term visits of young and senior Egyptian scientists to perform advanced research on fundamental particle physics in the framework of worldwide large collaborations. Moreover the programme would offer the possibility to second EU researchers to Egypt to originate advanced research activities, advice on the development of the local infrastructures and monitor the success of the transfer of knowledge; the establishment of a important scientific collaboration between Italy and France on advanced physics concepts and technologies. Although some researchers of the EU Academic Institutions involved in the proposal have already collaborated through the CERN experimental physics program, the possibility of building up an independent common research program would boost enormously the joint research capability. It should be mentioned that the researches involved in these EU institutions can offer an impressive expertise to the activities relevant for this proposal. Their collaboration could therefore have an important European long term impact on the progress of the physics concept and technologies hereby discussed.
Carbone G.,Polytechnic of Bari |
Pierro E.,University of Basilicata
Small | Year: 2012
Very recently, both experimental and theoretical investigations have shown that microstructured surfaces covered with mushroom-shaped micropillars present strongly enhanced adhesive properties if compared to flat surfaces made of the same material. However, different geometries lead to different adhesive performance, and finding the optimal solution has become of utmost importance. This paper presents on which physical basis the optimal mushroom pillar shape should be sought, and it provides a relatively simple methodology to achieve the result. Calculations demonstrate that the adhesive performance of the pillar strongly depends on the geometry of the terminal plate. The best performance is achieved when the ratio s/Ri between the plate thickness (s) and the pillar internal radius (Ri) is close to 0.2-0.3, and the ratio R e/Ri is larger than 2, where Re is the external radius of the plate. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Foti D.,Polytechnic of Bari
Composite Structures | Year: 2013
In the present paper the results of some tests performed on concrete specimens reinforced with fibers made from waste polyethylene terephthalate (PET) bottles are reported. The fibers have been obtained by simply cutting the bottles; the fibers are then added to the mix concrete or they are used as discrete reinforcement of specimens and little beams in substitution of steel bars. The tests are to be considered as an approach to a more extensive investigation on the use of PET as a reinforcing material for concrete and masonry structures. The results that have been obtained are very interesting, especially regarding the adherence between PET and concrete, suggesting a possible use of this material in the form of flat or round bars, or networks for structural reinforcement. © 2012 Elsevier Ltd.
Petruzzelli A.M.,Polytechnic of Bari
Technovation | Year: 2011
Empirical studies on R&D collaborations between universities and firms have mainly centered their attention on universities and firms characteristics that favor the establishment of collaborative agreements. In this paper, I extend the current research framework investigating the role that specific technological and relational attributes may play on the relevance of such collaborations. Specifically, I focus on the effects exerted by three relevant factors, namely technological relatedness, prior collaboration ties, and geographical distance, on universityindustry joint innovation value. I develop testable hypotheses about their impact on the innovative performance of R&D universityindustry collaborations, and test them on a sample of 796 universityindustry joint patents, developed by 33 universities located in 12 different European countries. Our results suggest that partners technological relatedness has an inverted U-shaped relationship with innovation value. In addition, prior ties and geographical distance between universities and firms are both positively related to the achievement of higher innovative outcomes. © 2011 Elsevier Ltd.
Maione G.,Polytechnic of Bari
IEEE Transactions on Automatic Control | Year: 2013
This note ties the Laguerre continued fraction expansion of the Tustin fractional discrete-time operator to irreducible Jacobi tri-diagonal matrices. The aim is to prove that the Laguerre approximation to the Tustin fractional operator s-ν (or sν ) is stable and minimum-phase for any value 0<ν<1 of the fractional order ν. It is also shown that zeros and poles of the approximation are interlaced and lie in the unit circle of the complex z-plane, keeping a special symmetry on the real axis. The quality of the approximation is analyzed both in the frequency and time domain. Truncation error bounds of the approximants are given. © 1963-2012 IEEE.
Berardi U.,Polytechnic of Bari
Sustainable Development | Year: 2012
The increasing attention to sustainability is pushing the construction sector to build more sustainable buildings. In this scenario, several sustainable development indicators have been proposed. The worldwide diffusion of sustainability rating systems and that of their structures are considered as proxy variables for the evaluation of sustainable constructions. Available rating systems span from energy consumption evaluation systems to life cycle analysis and total quality assessment systems. In these last systems, a multi-dimensional approach is proposed, as several building ratings are evaluated separately before being considered together. The description of assessment results from a sample of 490 buildings provides data to discuss construction characteristics that, currently, aim at being defined as sustainable. The paper shows that building energy performance is considered the most important criterion in sustainability rating systems, and the least achieved one in sustainability assessments. In contrast, other performance ratings of the building, such as water efficiency or indoor air quality, are achieved with a high rate of success in sustainability assessments. © 2011 John Wiley & Sons, Ltd and ERP Environment.
Martellotta F.,Polytechnic of Bari
Applied Acoustics | Year: 2013
Microphone arrays represent today a state of the art solution to many acoustic problems. In architectural acoustics, for example, one of the most interesting applications is the possibility to analyse the directional information associated to a given reflection. Ambisonics microphones could provide similar information based on zeroth and first order spherical harmonic decomposition, but larger microphone arrays allow the determination of higher order components providing even better accuracy. In this case, directional information may be obtained through beamforming techniques that, although potentially more accurate and capable of resolving simultaneous reflections, are computationally heavier and provide a "discrete" sampling of the sound field. The paper compares the localization accuracy of a 32 channel microphone array by processing its output using a simple Ambisonics decomposition and a spatial sampling carried out using 32 "virtual" third-order hyper cardioid microphones. In addition, a comparison with conventional Ambisonics microphones is provided in order to point out possible differences. Results show that, when single reflections are involved and the sound field is highly polarized, the Ambsionics decomposition given by the microphone array gives good accuracy over the whole spectrum, while conventional Ambisonic microphones shows less stable results and greater variations as a function of frequency. Spatial sampling is intrinsically less accurate but allows a clearer resolution of simultaneous reflections. © 2013 Elsevier Ltd. All rights reserved.