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Sub Wavelength Probing And Modification Of Complex Photonic Structures
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Book Synopsis Sub-Wavelength Probing and Modification of Complex Photonic Structures by : Silvia Vignolini
Download or read book Sub-Wavelength Probing and Modification of Complex Photonic Structures written by Silvia Vignolini and published by Firenze University Press. This book was released on 2010 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this thesis consists in the study and modification of complex photonic nano-structures. Nowadays, propagation of light in such materials is a rich and fascinating area of research, both for its fundamental implications and for its practical technological impact. To deeply investigate light propagation inside these structures a high spatial resolution technique is required, especially because intriguing effects often occur on length scales comparable with the diffraction-limit or involve coupling phenomena on this length scale. For this reason in this thesis a Scanning Near-Field Optical Microscope represents one the most straightforward tool both to study and locally modify complex photonic nano-structures from perfect periodic to completely random ones.
Book Synopsis Cerebral Small Vessel Disease and Cerebral Amyloid Angiopathy by : Raffaella Valenti
Download or read book Cerebral Small Vessel Disease and Cerebral Amyloid Angiopathy written by Raffaella Valenti and published by Firenze University Press. This book was released on 2018 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Isotopic fractionation study towards massive star-forming regions across the Galaxy by : Laura Colzi
Download or read book Isotopic fractionation study towards massive star-forming regions across the Galaxy written by Laura Colzi and published by Firenze University Press. This book was released on 2022 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most important tools to investigate the chemical history of our Galaxy and our own Solar System is to measure the isotopic fractionation of chemical elements. In the present study new astronomical observations devoted to the study of hydrogen and nitrogen fractionation (D/H and 14N/15N ratios) of molecules, towards massive star-forming regions in different evolutionary phases, have been presented. Moreover, a new detailed theoretical study of carbon fractionation, 12C/13C ratios, has been done. One of the main results was the confirmation that the 14N/15N ratio increases with the galactocentric distance, as predicted by stellar nucleosynthesis Galactic chemical evolution models. This work gives new important inputs on the understanding of local chemical processes that favor the production of molecules with different isotopes in star-forming regions.
Book Synopsis Finite-Size Effects in Stochastic Models of Population Dynamics: Applications to Biomedicine and Biology by : Francesca Di Patti
Download or read book Finite-Size Effects in Stochastic Models of Population Dynamics: Applications to Biomedicine and Biology written by Francesca Di Patti and published by Firenze University Press. This book was released on 2010 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Functional validation of genetic variants identified by next generation sequencing in malformations of cortical development by : Dalila De Vita
Download or read book Functional validation of genetic variants identified by next generation sequencing in malformations of cortical development written by Dalila De Vita and published by Firenze University Press. This book was released on 2022 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Malformations of cortical development (MCDs) result from a disruption in the process of the human brain cortex formation: currently, there are no pharmacological treatments for diffuse MCDs. Next-generation sequencing has accelerated the identification of MCDs causing genes: in some cases, functional studies are needed to clarify the role of genetic variants. The aim of this PhD project has been to apply a multidisciplinary approach to identify causative mutations in patients with MCDs, validate the pathogenic role of the identified mutations, and assess the effectiveness of novel in vitro treatment for mTOR pathway related MCDs.
Book Synopsis Tectono-metamorphic evolution of the continental units along the edge between Alpine and Hercynian Corsica by : Maria Di Rosa
Download or read book Tectono-metamorphic evolution of the continental units along the edge between Alpine and Hercynian Corsica written by Maria Di Rosa and published by Firenze University Press. This book was released on 2022 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work the central area of Corsica island was studied in order to reconstruct the tectono-metamorphic history of the continental and oceanic high pressure units that occupy the structurally deeper levels of the tectonic stacking of Alpine Corsica and their stratigraphic and structural relationship with the European margin (Hercynian Corsica). The study includes the geological mapping, the mesoscale and microscale structural analysis, the acquisition of chemical analyzes and micromaps with the microprobe, thermobarometric estimation through specific methodologies for metapelites, U-Th-Pb dating of zircons and allanites. The results obtained allows to reconstruct the geodynamic model of this sector of the Alpine belt from the Permian to the Burdigalian.
Book Synopsis Bioinformatics of Genome Evolution: from Ancestral to Modern Metabolism Phylogenomics and Comparative Genomics to Understand Microbial Evolution by : Marco Fondi
Download or read book Bioinformatics of Genome Evolution: from Ancestral to Modern Metabolism Phylogenomics and Comparative Genomics to Understand Microbial Evolution written by Marco Fondi and published by Firenze University Press. This book was released on 2011 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioinformatics, that is the interdisciplinary field that blends computer science and biostatistics with biological and biomedical sciences, is expected to gain a central role in next feature. Indeed, it has now affected several fields of biology, providing crucial hints for the understanding of biological systems and also allowing a more accurate design of wet lab experiments. In this work, the analysis of sequence data has be used in different fields, such as evolution (e.g. the assembly and evolution of metabolism), infections control (e.g. the horizontal flow of antibiotic resistance), ecology (bacterial bioremediation).
Book Synopsis An Integrated Nonlinear Wind-Waves Model for Offshore Wind Turbines by : Enzo Marino
Download or read book An Integrated Nonlinear Wind-Waves Model for Offshore Wind Turbines written by Enzo Marino and published by Firenze University Press. This book was released on 2010 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a numerical model capable of simulating offshore wind turbines exposed to extreme loading conditions. External condition-based extreme responses are reproduced by coupling a fully nonlinear wave kinematic solver with a hydro-aero-elastic simulator. First, a two-dimensional fully nonlinear wave simulator is developed. The transient nonlinear free surface problem is formulated assuming the potential theory and a high-order boundary element method is implemented to discretize Laplace's equation. For temporal evolution a second-order Taylor series expansion is used. The code, after validation with experimental data, is successfully adopted to simulate overturning plunging breakers which give rise to dangerous impact loads when they break against wind turbine substructures. Emphasis is then placed on the random nature of the waves. Indeed, through a domain decomposition technique a global simulation framework embedding the numerical wave simulator into a more general stochastic environment is developed. The proposed model is meant as a contribution to meet the more and more pressing demand for research in the offshore wind energy sector as it permits taking into account dangerous effects on the structural response so as to increase the global structural safety level.
Book Synopsis Molecular Imaging in Parkinson's Disease by : Cristina Polito
Download or read book Molecular Imaging in Parkinson's Disease written by Cristina Polito and published by Firenze University Press. This book was released on 2011 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work explores brain functional changes in drug-naïve Parkinson's disease (PD) patients by means of molecular imaging techniques. Thirty-one consecutive drug-naïve PD patients from the Neurological Clinic of the University of Flor-ence underwent clinical assessment, neuropsychological assessment, MRI, [123I]FP-CIT SPECT, [18F]FDG PET. First, [18F]FDG-PET was employed to identify in drug-naïve PD patients brain metabolic alteration uniquely related to disease process and not modulated by anti-parkinsonian therapeutic intervention. Second, [18F]FDG-PET and [123I]FP-CIT SPECT were employed together to explore the early functional changes in brain function related to dopaminergic depletion in the putamen and in the caudate nucleus.
Book Synopsis Determinants of Mobility Disability in Older Adults: Evidence from Population-Based Epidemiologic Studies by : Marco Inzitari
Download or read book Determinants of Mobility Disability in Older Adults: Evidence from Population-Based Epidemiologic Studies written by Marco Inzitari and published by Firenze University Press. This book was released on 2010 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gait and mobility are cardinal to maintain autonomy and independency in daily life, also for older persons. Changes in these functions might be critical in the transition towards disability and loss of autonomy during the aging process. The aim of the present work, which collects three years of research conducted between Italy and the United States, was to assess some of the main risk factors for the progressive impairment of mobility and gait in older adults living in the community. According to our results, abnormalities in the nervous and cardiovascular systems, even subtle, are associated with a subsequent worsening of these functions. These data might help to better understand the progressive development of disability in the elderly, and in the future might also have practical implications for prevention.
Book Synopsis Subwavelength Optics Theory and Technology by : Yongqi Fu
Download or read book Subwavelength Optics Theory and Technology written by Yongqi Fu and published by Bentham Science Publishers. This book was released on 2010-04-21 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: "From the beginning of this century, there has been a dramatic increase in interest in the study of surface plasmon polaritons-based metallic subwavelength structures and learning. This is a refreshing concise book on issues and considerations in designing"
Book Synopsis Optics, Photonics and Laser Technology 2018 by : Paulo Ribeiro
Download or read book Optics, Photonics and Laser Technology 2018 written by Paulo Ribeiro and published by Springer Nature. This book was released on 2020-03-18 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes both theoretical and practical aspects within optics, photonics and lasers. The book provides new methods, technologies, advanced prototypes, systems, tools and techniques as well as a general survey indicating future trends and directions. The main fields of this book are Optical scattering, plasmas technologies and simulation, photonic and optoelectronic sensors and devices, optical fiber sensing and monitoring, image detection and Imaging solid state lasers and fiber lasers, and optical amplifiers. A wide range of optical materials is covered, from semiconductor based optical materials, optical crystals and optical glasses.
Book Synopsis Photonic Probes of Surfaces by : P. Halevi
Download or read book Photonic Probes of Surfaces written by P. Halevi and published by Newnes. This book was released on 2012-12-02 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is devoted principally to optical spectroscopies of material surfaces and also encompasses scattering techniques and theoretical response analysis as well as spectroscopies. In addition to solid surfaces some attention is also devoted to interfaces between two solids, between a solid and a liquid and to a liquid-vapor interface. These surfaces may be clean and perfect, in which case the purpose of the spectroscopical method at hand is to determine the deviation of the atomic structure in the surface region from that in the bulk, namely the surface reconstruction. Otherwise the surface may be imperfect due to roughness, strain or overlayers, in which case the spectroscopy can yield information on the nature of such imperfections, including the monitoring of growth processes. One of the foremost purposes of surface spectroscopies is to extract information on atomic and molecular adsorbates on solid surfaces. Most of the 10 chapters are concerned with photonic sources of excitation, the respective spectral regions ranging from the far infrared to X-rays. In conclusion this book provides a state-of-the-art review of all major types of photonic probes of surfaces and interfaces and deals with both applications and experiment and theory.
Book Synopsis Progress in Nanophotonics 1 by : Motoichi Ohtsu
Download or read book Progress in Nanophotonics 1 written by Motoichi Ohtsu and published by Springer Science & Business Media. This book was released on 2011-07-29 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the recent progress in nanophotonics technology to be used to develop novel nano-optical devices, fabrication technology, and security systems. It begins with a review of the concept of dressed photons and applications to devices, fabrication, and systems; principles and applications. Further topics include: DNA process for quantum dot chain, photon enhanced emission microscopy, near field spectroscopy of metallic nanostructure, self-organized fabrication of composite semiconductor quantum dots, formation of metallic nanostructure, and nanophotonic information systems with security. These topics are reviewed by seven leading scientists. This overview is a variable resource for engineers and scientists working in the field of nanophotonics.
Download or read book 50 Great Moments written by Kyle Ratinac and published by Sydney University Press. This book was released on 2008-12-02 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This captivating book presents 50 great moments from the past five decades of the Electron Microscope Unit's activities. Blending history and science in an engaging style, 50 Great Moments tells the story of the unit's creation and profiles the key figures that have forged the facility into the success that it is today.
Book Synopsis Progress in Nonlinear Nano-Optics by : Shuji Sakabe
Download or read book Progress in Nonlinear Nano-Optics written by Shuji Sakabe and published by Springer. This book was released on 2014-12-27 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the state of the art in nonlinear nanostructures for ultrafast laser applications. Most recent results in two emerging fields are presented: (i) generation of laser-induced nanostructures in materials like metals, metal oxides and semiconductors, and (ii) ultrafast excitation and energy transfer in nanoscale physical, chemical and hybrid systems. Particular emphasis is laid on the up-to-date controversially discussed mechanisms of sub-wavelength ripple formation including models of self-organized material transport and multiphoton excitation channels, nonlinear optics of plasmonic structures (nanotips, nanowires, 3D-metamaterials), and energy localization and transport on ultrafast time scale and spatial nanoscale. High-resolution spectroscopy, simulation and characterization techniques are reported. New applications of ultrashort-pulsed lasers for materials processing and the use of nanostructured materials for characterizing laser fields and laser-matter-interactions are discussed.
Book Synopsis Conference on Lasers and Electro-optics Europe by :
Download or read book Conference on Lasers and Electro-optics Europe written by and published by . This book was released on 2000 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
