A5017158514- Elasticity and Material Modeling
- Atomic and Molecular Physics
- Advanced Mathematical Modeling in Engineering
- Advanced Materials and Mechanics
- Structural Analysis and Optimization
- Laser Design and Applications
- Laser-induced spectroscopy and plasma
- Cellular Mechanics and Interactions
- Advanced X-ray Imaging Techniques
- Laser-Plasma Interactions and Diagnostics
- Nonlocal and gradient elasticity in micro/nano structures
- Composite Material Mechanics
- Thermoelastic and Magnetoelastic Phenomena
- Laser-Matter Interactions and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Force Microscopy Techniques and Applications
- Composite Structure Analysis and Optimization
- Magneto-Optical Properties and Applications
- Magnetic Properties and Applications
- Mathematical Biology Tumor Growth
- Topology Optimization in Engineering
- Plasma Diagnostics and Applications
- Rheology and Fluid Dynamics Studies
- Diamond and Carbon-based Materials Research
- Nuclear Physics and Applications
Roma Tre University
2018-2025
Sapienza University of Rome
2019-2020
Istituto di Analisi dei Sistemi ed Informatica Antonio Ruberti
2020
Ministry of Education, Universities and Research
2020
University of Rome Tor Vergata
2008-2017
University of L'Aquila
1999-2008
Dipartimento della Protezione Civile
2006
Italian Aerospace Research Centre
2005
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso
2001-2004
Istituto Nazionale di Fisica Nucleare
1979-2004
The use of lithium fluoride (LiF) crystals and films as imaging detectors for EUV soft-x-ray radiation is discussed. or can generate stable color centers, emitting in the visible spectral range an intense fluorescence from exposed areas. high dynamic response material to received dose atomic scale centers make this detector extremely interesting at a spatial resolution which be much smaller than light wavelength. Experimental results contact microscopy test meshes demonstrate order 400nm....
Constitutive equations for Cosserat shell theory are usually developed using a Lagrangian formulation based on zero-stress reference configuration. However, growing shells state, if it exits, can change. The main objective of this paper is to propose an Eulerian constitutive shell. director normal the shell's mid-surface constrained remain that surface, but allowed have variable length model non-uniform thickness changes Elastic measures dilatation, distortional deformation, mean and...
We analyze dissipative scale effects within a one-dimensional theory, developed in [L. Anand et al., J. Mech. Phys. Solids, 53 (2005), pp. 1789--1826], which describes plastic flow thin strip undergoing simple shear. give variational characterization of the yield (shear) stress---the threshold for onset flow---and we use this characterization, together with results from [M. Amar Math. Anal. Appl., 397 (2011), 381--401], to obtain an explicit relation between stress and height strip. The...
We applied a 0.3 mJ, 1.7 ns, 46.9 nm soft-x-ray argon laser to ablate the surface of large bandgap dielectrics: CaF2 and LiF crystals. studied ablation versus fluence beam, varying in range 0.05-3 J/cm2. Ablation thresholds 0.06 0.1 J/cm2 depths 14 20 were found for LiF, respectively. These results define new conditions these dielectrics that can be interest fine processing materials.
We have studied the feasibility of high-resolution laser interference lithography using a tabletop 46.9nm, 1.5ns Ar laser, combined with two different optical configurations based on Lloyd’s mirror interferometer. Using one these schemes we encoded periodic grating structures half pitch 42nm and vertical modulation 5nm commercial PMMA photoresist. Experiments performed larger half-pitch detailed theoretical calculations demonstrate potentiality producing resolution down to 20nm height up...
In this paper, an application of contact microradiography with soft X-rays for detecting the uptake site heavy metal in whole plant leaves is investigated. The X-ray source a laser-plasma one based on Nd:glass laser. radiation emitted from plasma laser targets magnesium, iron, and copper can be strongly absorbed leaves' regions rich copper. This absorbance could point to structures where these elements are found. work, treated sulfate diluted water at 1, 2, 5% were imaged by using target,...
We provide a justification of the Reissner–Mindlin plate theory, using linear three-dimensional elasticity as framework and Γ-convergence technical tool. Essential to our developments is selection transversely isotropic material class whose stored energy depends on (first and) second gradients displacement field. Our choices candidate Γ-limit scaling law basic functional in terms thinness parameter are guided by mechanical formal arguments that variational convergence theorem meant validate...
We derive a model for the finite motion of fibre-reinforced magneto-elastic rod. The reinforcing particles are assumed weakly and uniformly magnetized, rigid firmly embedded into elastomeric matrix. deduce closed-form expressions quasi-static rod in terms external magnetic field body forces. dependences on shape inclusions, their orientation, anisotropic properties Young modulus matrix analysed discussed. Two case studies presented, which is used as an actuator suspended cantilever...
Abstract A method for detecting cadmium uptake in leaves of Saponaria officinalis doped with a solution acetate is described. The technique based on the exposure dried to X‐rays wavelength close that metal K‐edge could be useful phytoremediation studies as it reveal bioaccumulation plants due treatment either vivo or vitro heavy metals. X‐ray microradiography measurements are agreement those from peroxidase enzyme assay utilized follow oxidative damage induced by At present, we will see this...