7 results on '"C. Giannetti"'
Search Results
2. Optimisation process for robotic assembly of electronic components
- Author
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K. T. Andrzejewski, M. P. Cooper, C. A. Griffiths, and C. Giannetti
- Subjects
0209 industrial biotechnology ,021103 operations research ,Computer science ,business.industry ,Heuristic ,Mechanical Engineering ,0211 other engineering and technologies ,Condition monitoring ,Control engineering ,02 engineering and technology ,Automation ,Industrial and Manufacturing Engineering ,Computer Science Applications ,020901 industrial engineering & automation ,Control and Systems Engineering ,Articulated robot ,visual_art ,Electronic component ,visual_art.visual_art_medium ,Robot ,Six degrees of freedom ,business ,Throughput (business) ,Software - Abstract
Adoption of robots in the manufacturing environment is a way to improve productivity, and the assembly of electronic components has benefited from the adoption of highly dedicated automation equipment. Traditionally, articulated 6-axis robots have not been used in electronic surface mount assembly. However, the need for more flexible production systems that can be used for low to medium production builds means that these robots can be used due to their high degrees of flexibility, excellent repeatability and increasingly lower investment costs. This research investigated the application of an articulated robot with six degrees of freedom to assemble a multi-component printed circuit board (PCB) for an electronic product. A heuristic methodology using a genetic algorithm was used to plan the optimal sequence and identify the best location of the parts to the assembly positions on the PCB. Using the optimised paths, a condition monitoring method for cycle time evaluation was conducted using a KUKA KR16 assembly cell together with four different robot path motions. The genetic algorithm approach together with different assembly position iterations identified an optimisation method for improved production throughput using a non-traditional but highly flexible assembly method. The application of optimised articulated robots for PCB assembly can bridge the gap between manual assembly and the high-throughput automation equipment.
- Published
- 2018
- Full Text
- View/download PDF
3. Chemical Laboratory Safety☆
- Author
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Anna Cenni, A. Baldi, L. Lunghini, N. Bozzi, M. C. Aprea, C. Giannetti, G. Sciarra, G. Scancarello, B. Banchi, and C. Trane
- Subjects
Engineering ,Risk analysis (engineering) ,Work (electrical) ,Occupational hygiene ,Process (engineering) ,business.industry ,Forensic engineering ,Worker health ,Chemical laboratory ,business ,Chemical risk - Abstract
Work in chemical laboratories must ensure worker health protection and comply with laws and regulations on occupational hygiene by identifying, assessing, and controlling process-related risk factors. A critical aspect is the number of dangerous substances used, especially those with chronic toxicity, but also compounds used under dispersive conditions. Here, we describe strategies and methods of measurement and of interpretation of data. Analysis of the results of our investigations and how we solved the problems that presented themselves enabled us to evaluate the efficacy of the prevention measures implemented; the process we used aimed to evaluate and reduce chemical risk to the lowest technically possible value.
- Published
- 2016
- Full Text
- View/download PDF
4. Ueber die Nachweisung von Jodkalium im Urin
- Author
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C. Giannetti
- Subjects
Engineering ,Chromatography ,business.industry ,business ,Biochemistry ,Analytical Chemistry - Abstract
n/a
- Published
- 1872
5. Local order and non-linear optical properties in bulk nanostructuredniobiosilicate glasses
- Author
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Pasquale Pernice, Luca Bignardi, Gabriele Ferrini, Esther Fanelli, Fulvio Parmigiani, Marco Malvestuto, Paolo Bergese, Antonio Aronne, Elza Bontempi, Paolo Colombi, Laura E. Depero, Claudio Giannetti, Aronne, Antonio, Fanelli, Esther, Pernice, Pasquale, M., Malvestuto, P., Bergese, E., Bontempi, P., Colombi, L. E., Depero, L., Bignardi, C., Giannetti, G., Ferrini, F., Parmigiani, Aronne, A., Fanelli, E., Pernice, P., Malvestuto, M., Bergese, P., Bontempi, E., Colombi, P., Depero, L. E., Giannetti, C., Ferrini, G., Parmigiani, Fulvio, and Bignardi, Luca
- Subjects
Nanostructure ,Potassium ,Niobium ,Shell (structure) ,chemistry.chemical_element ,glasses ,Settore FIS/03 - FISICA DELLA MATERIA ,niobiosilicate ,Glasse ,Optics ,Local order ,non-linear optical properties ,nano-structure ,Materials Chemistry ,non-linear optical propertie ,second harmonic ,XAFS (EXAFS and XANES) ,Extended X-ray absorption fine structure ,Condensed matter physics ,business.industry ,Second-harmonic generation ,Condensed Matter Physics ,Optical propertie ,non-linear optics ,Settore FIS/01 - FISICA SPERIMENTALE ,Electronic, Optical and Magnetic Materials ,Nonlinear system ,Order (biology) ,chemistry ,Ceramics and Composites ,business ,Refractive index - Abstract
This communication presents and discusses an experimental proof of the correlation among local structure and second harmonic generation (SHG) in bulk nanostructured potassium niobiosilicate (KNS) glasses. In particular, SHG shows a maximum in correspondence of the early stages of nanostructuring, that are characterized by the segregation within the amorphous matrix of nanosized inhomogeneities. EXAFS experiments indicate that these inhomogeneities are determined by the maximum size reached by the niobium second coordination shell combined with the sudden inclusion of potassium atoms in it. Such rearrangement at the local level determines the maximum fluctuation of the bulk glass refractive index and in turn its maximum SHG activity.
- Published
- 2011
6. Thermo-mechanical behavior of surface acoustic waves in ordered arrays of nanodisks studied by near infrared pump-probe diffraction experiments
- Author
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Fulvio Parmigiani, Francesco Banfi, Federico Cilento, V. V. Metlushko, Gabriele Ferrini, Claudio Giannetti, B. Revaz, Stefania Maccalli, Giulio Oliviero, Paolo Vavassori, Elza Bontempi, M. Montagnese, Laura E. Depero, C., Giannetti, B., Revaz, F., Banfi, M., Montagnese, G., Ferrini, F., Cilento, S., Maccalli, P., Vavassori, G., Oliviero, E., Bontempi, L. E., Depero, V., Metlushko, and Parmigiani, Fulvio
- Subjects
Diffraction ,FOS: Physical sciences ,Physics::Optics ,Molecular physics ,Settore FIS/03 - FISICA DELLA MATERIA ,NANOSTRUCTURES ,law.invention ,Optics ,nanocalorimetry ,law ,DIELECTRIC INTERFACES ,Lattice (order) ,VIBRATIONAL-MODES ,femtosecond ,Physics ,Condensed Matter - Materials Science ,business.industry ,Surface acoustic wave ,Materials Science (cond-mat.mtrl-sci) ,Acoustic wave ,surface acoustic waves ,Condensed Matter Physics ,Laser ,Electronic, Optical and Magnetic Materials ,Settore FIS/01 - FISICA SPERIMENTALE ,OPTICAL ANTENNAS ,Excited state ,Femtosecond ,Sapphire ,PICOSECOND ULTRASONICS ,business - Abstract
The ultrafast thermal and mechanical dynamics of a two-dimensional lattice of metallic nano-disks has been studied by near infrared pump-probe diffraction measurements, over a temporal range spanning from 100 fs to several nanoseconds. The experiments demonstrate that, in these systems, a two-dimensional surface acoustic wave (2DSAW), with a wavevector given by the reciprocal periodicity of the array, can be excited by ~120 fs Ti:sapphire laser pulses. In order to clarify the interaction between the nanodisks and the substrate, numerical calculations of the elastic eigenmodes and simulations of the thermodynamics of the system are developed through finite-element analysis. At this light, we unambiguously show that the observed 2DSAW velocity shift originates from the mechanical interaction between the 2DSAWs and the nano-disks, while the correlated 2DSAW damping is due to the energy radiation into the substrate., 13 pages, 10 figures
- Published
- 2007
7. Experimental evidence of above-threshold photoemission in solids
- Author
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Francesco Banfi, Stefania Pagliara, Daniele Fausti, Claudio Giannetti, Fulvio Parmigiani, Gianluca Galimberti, Gabriele Ferrini, F., Banfi, C., Giannetti, G., Ferrini, G., Galimberti, S., Pagliara, Fausti, Daniele, and Parmigiani, Fulvio
- Subjects
Materials science ,ultra-fast photoemission ,Photoemission spectroscopy ,Inverse photoemission spectroscopy ,NONLINEAR-OPTICAL-PROPERTIES ,FOS: Physical sciences ,Physics::Optics ,General Physics and Astronomy ,Angle-resolved photoemission spectroscopy ,PHOTOEMISSION SPECTROSCOPY ,non-linear photoemission ,non-linear electron dynamics ,Settore FIS/03 - FISICA DELLA MATERIA ,law.invention ,Condensed Matter::Materials Science ,Optics ,law ,SOLID SURFACES ,Condensed Matter::Superconductivity ,ultra-fast electron dynamics ,Condensed Matter - Materials Science ,Condensed matter physics ,business.industry ,Above threshold ionization ,Materials Science (cond-mat.mtrl-sci) ,Laser ,Settore FIS/01 - FISICA SPERIMENTALE ,above-threshold ionization ,Femtosecond ,Condensed Matter::Strongly Correlated Electrons ,business ,Single crystal ,Fermi Gamma-ray Space Telescope - Abstract
Nonlinear photoemission from a silver single crystal is investigated by femtosecond laser pulses in a perturbative regime. A clear observation of above-threshold photoemission in solids is reported for the first time. The ratio between the three-photon above-threshold and the two-photon Fermi edges is found to be 10^{-4}. This value constitutes the only available benchmark for theories aimed at understanding the mechanism responsible for above-threshold photoemission in solids., Comment: 5 pages, 4 figures
- Published
- 2005
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