Felice Nunziata - Profile on Academia.edu (original) (raw)
X ray fluorescence - Energy Dispersion by Felice Nunziata
Journal of Cultural Heritage, 2005
XRF and micro-Raman stratigraphic microanalyses of fragments of some mural paintings, belonging t... more XRF and micro-Raman stratigraphic microanalyses of fragments of some mural paintings, belonging to the Archaeological Site of Oplonti (Napoli) and the Vigna Barberini site in the Palatino (Roma), were performed. In order to collimate the fluorescence X-rays emitted by the samples, an X-ray polycapillary conic collimator (PCC) has been used in front of the detector. This device arrangement is compact, versatile, and portable. The nature of the pigments, the compositional elements, and the thickness of the fragment layers have been studied. The stratigraphic analysis partially confirms the preparation techniques described by Plinius and Vitruvius; moreover it confirms the hypothesis that the artifacts are not fresco paintings. This work has been conducted within the context of a wider research on the Roman age mural paintings.
Residui dello Sparo _ Gunshot Residues by Felice Nunziata
Structural segregation in GSR from mercuric primers. A preliminary study
Forensic Science International
Journal of Forensic Science & Criminology, 2017
In their first full report on the analysis of GSR by SEM-EDS, Wolten and colleagues stated that t... more In their first full report on the analysis of GSR by SEM-EDS, Wolten and colleagues stated that the great majority of the gunshot residue particles (GSR), between 70 to 100%, have a characteristic morphology thus providing a detection criterion holding significance equal to that provided by the elemental composition. In fact, the particles must have a spherical or spheroidal shape and their surface should appear amorphous, devoid of any crystalline characteristic.
Observations by scanning electron microscopy/energy dispersive x-ray spectroscopy (SEM/EDS) of un... more Observations by scanning electron microscopy/energy dispersive x-ray spectroscopy (SEM/EDS) of unfired standard primer material (lead/antimony/barium) are presented from the centerfire cartridge primers of Winchester, Speer and Remington. Also examined by SEM/EDS are the surfaces of thirtytwo gunpowders (GPs) from Winchester, Federal, Hercules, DuPont and Remington. Compounds of sulfur, potassium and barium as well as primer-like particles composed of lead, antimony and barium were found on the surfaces of many of these GPs. The elements of these compounds likely contribute to gunshot residue (GSR) generated by the discharge of a firearm. We introduce the term, ―hybrid GSR‖ which will account for both the contribution to primer GSR by the interior firearm surfaces GSR and the elements associated with GP.
Burnett, B.R., Nunziata, F. Divergent gunshot residues and characterization of the memory effect in a .22 caliber revolver and pistol
Egyptian Journal of Forensic Sciences 13 (2023), 2023
The forms and compositions of primer gunshot residue (GSR) in shooting cases have been routinely ... more The forms and compositions of primer gunshot residue (GSR) in shooting cases have been routinely analyzed in many crime labs by scanning electron microscope/energy-dispersive X-ray spectroscopy (SEM/EDS). Gunshot residue studies over the last 30 years have identified a contribution by residual GSR from surfaces within the firearm to GSR (the “memory effect”). In this study, we first focus on the GSR compositional differences between target, bore, and cylinder gap for a .22 caliber revolver which has received little attention in the literature. Secondly, we examine the behavior of elements involved in the residual contribution to GSR for a .22 caliber pistol.
On the problem of data interpretation in the analysis of iron-containing GSR particles
Forensic Chemistry Available online 9 January 2023, 100472 In Press, Journal Pre-proofWhat are Jo... more Forensic Chemistry
Available online 9 January 2023, 100472
In Press, Journal Pre-proofWhat are Journal Pre-proof articles?
On the problem of data interpretation in the analysis of iron-containing GSR particles
Author links open overlay panelMarcoRomeoaFeliceNunziatae
https://doi.org/10.1016/j.forc.2023.100472
Get rights and content
Highlights
•
Iron is an element that can be present within a GSR particle;
•
The iron present in a GSR particle can be derived from several sources;
•
Forensic experts hypothesize that the iron may have come from the barrel of the firearm;
•
Several iron particles from the barrel of the firearm and other sources were analyzed;
•
In gunfire with rusty barrels, iron particles aggregate with GSRs in the cooling phase.
Abstract
Many forensic experts hypothesize that iron found in gunshot residues (GSRs) derive from melted iron particles because the steel of the barrel consists mainly of iron. This is a strong hypothesis that deserve careful investigation. To this purpose, we focused our attention on erosion and corrosion mechanism occurring in the barrel that can influence GSRs. A preliminary physicochemical interpretation consistent with the analytical results was presented. Moreover, spectra and images of GSRs originated from the firing of ammunition by firearms having rusty barrels and of iron oxide particles not originated from the firing were analyzed. The obtained results are discussed, taking into account the chemical content and morphology of the observed particles taking in account the context both of the erosion and of the corrosion and of the GSRs formation process
Molybdenum in Gunshot Residue: Experimental Evidences and Detection Challenges in the Presence of Lead and Sulfur
Inorganic gunshot residue (GSR) analysis is carried out by scanning electron microscopy/energy-di... more Inorganic gunshot residue (GSR) analysis is carried out by scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDS)
in many forensic laboratories. Characteristic GSR often consists of lead–barium–antimony, commonly associated with sulfur. The strength
of forensic GSR evidence increases when unusual elements are found in residues collected both from the suspect and from the discharged
firearm. The presence of molybdenum in GSR, due to the use of MoS 2 lubricants in firearms, is experimentally demonstrated here for the
first time. The most intense molybdenum X-ray emissions are MoL peaks at 2.3 keV which overlap with PbM and SK families due to the
poor resolution of EDS detectors. When Pb, S, and Mo are allegedly present in the same particle, the reliability of automatic EDS routines is
at risk. Missing identifications or false detections and exclusions may then occur. Molybdenum should be considered as detected only if
MoK emissions meet the peak-to-background ratio minimum requirements. A strategy to spot Mo-containing residues is described,
based on the automated search of MoS 2 , using a new “Sulfur only” class added to the classification scheme, followed by careful manual
review of all GSR particles at an acceleration voltage of 30 kV. Our proposal improves commonly adopted forensic procedures currently
followed in casework.
Examination of firearm gunpowders by scanning electron microscopy/energy dispersive X-ray analysis
The surfaces of thirty-one gunpowders (GPs) from Winchester, Federal, Hercules, DuPont, and Remin... more The surfaces of thirty-one gunpowders (GPs) from Winchester, Federal, Hercules,
DuPont, and Remington were examined by scanning electron microscopy/energy
dispersive X-ray spectroscopy. Particles and surface coatings on 22 of the GPs had
compositions of sulfur/potassium/barium or sulfur/potassium detected. Primer-like
particles composed of lead/antimony/barium were found on surfaces of twelve GPs.
Gunpowders from fifteen different lots of Winchester 9 mm Silvertip ® hollow point
cartridges were found to vary in GP type (flake and flattened ball) and associated
inorganic compounds of sulfur/potassium/barium or sulfur/potassium or one with
only potassium. No inorganic particles or coatings were detected on two of these
Winchester GPs. The elements from the inorganic compounds on GPs likely contrib-
ute to gunshot residue generated by the discharge of a firearm.
Towards a robust interpretation of forensic analysis of phosphorus and calcium traces in gunshot residue
Journal of Analytical Atomic Spectrometry, 2019
Standard analysis of inorganic gunshot residue aims nowadays at lead, antimony and barium particl... more Standard analysis of inorganic gunshot residue aims nowadays at lead, antimony and barium particles of spherical shape, although other elements are detected that may be indicative of the ammunition brand or interaction with specific materials. Calcium and phosphorus can be present in the particle systems examined. There are two main sources of these elements in gunshot residue: components of the ammunition, e.g. Eley brand .22 long rifle caliber and bone fragments created during contact and close-range shooting. Samples of human bones of various ages and the residue from the interior of spent cartridges of ten different products of Eley brand .22 long rifle caliber ammunition were systematically characterised as reference materials to aid the interpretation of candidate GSR particles detected in evidence samples. We found that Ca : P ratios obtained by means of scanning electron microscopy with energy dispersive X-ray spectrometry from GSR particles larger than about 10 micrometres characterised bone fragments reliably. Although Ca and P may be detected as traces, for smaller (micron and sub-micron) particles the Ca : P ratio is not a reliable indicator of bone material. But in such cases qualitative interpretation taking into account interdisciplinary information can be achieved for forensic purposes. Three case studies encompassing various types and amounts of gunshot residue identified the possibilities and limitations in the differentiation between the potential sources of calcium and phosphorus present in inorganic gunshot residue.
In a famous paper published in 1982, a very special class of gunshot residue particles (GSR) was ... more In a famous paper published in 1982, a very special class of gunshot residue particles (GSR) was named by Samarendra Basu "peeled orange", due to their particular structure, consisting of a barium/antimony core covered by an outer lead leaflet. In this class of GSR particles the surface may show nodular structures of lead. Basu proposed an explanation in terms of a nucleus of antimony and barium that captures lead vapours produced after the explosion of a cartridge into a firearm: as solidification points of antimony and barium are close one another, both higher than solidification point of lead, he stated that lead occurs as a layer around the core in peeled orange GSR particles. In this paper we study the thermodynamic of the barium/antimony alloy and we hypothesize a formation process in terms of colloidal metal growth, charged particles and electrostatic attraction. We propose an updated model of formation for peeled orange GSR particles that explains the existence of outer lead leaflet and nodules in terms of electrostatic attraction of lead nanoparticles and instability of lead droplets.
Defence Technology
The possibility of identifying gunshot residue (GSR) particles produced by non-toxic primers cont... more The possibility of identifying gunshot residue (GSR) particles produced by non-toxic primers containing only titanium and zinc is a very difficult task using SEM/EDX analysis employed in the analysis of GSR originating from primers containing lead, barium and antimony. However, Bauer et al. demonstrated that non-toxic (TieZn) primers form a TiZn 2 O 4 spinel crystalline structure using SEM/EDX with EBSD (Electron Back Scatter Diffraction) and TKD (Transmission Kikuchi Diffraction), whereas GSR originating from gadolinium-doped TieZn primers form a non-crystalline glass phase. Here, a possible explanation of these different phenomena is hypothesized.
In their first full report on the analysis of GSR by SEM-EDS, Wolten and colleagues stated that t... more In their first full report on the analysis of GSR by SEM-EDS, Wolten and colleagues stated that the great majority of the gunshot residue particles (GSR), between 70 to 100%, have a characteristic morphology thus providing a detection criterion holding significance equal to that provided by the elemental composition. In fact, the particles must have a spherical or spheroidal shape and their surface should appear amorphous, devoid of any crystalline characteristic.
On a gunshot residue three-dimensional roundedness For the proper identification of GSR by SEM/ED... more On a gunshot residue three-dimensional roundedness
For the proper identification of GSR by SEM/EDX, together with a correct and congruent elemental analysis, is also essential to take into account the morphology of the particles and the nature of their surfaces. GSR corpuscles are formed during a rapid solidification process and, having assumed at the liquid state a spherical shape, they maintain this characteristic as solidification occurs. Their surfaces, probably due to a phenomenon of "grain refinement" , should appear completely amorphous at the normal working magnification with no trace of crystalline formations. This principle has been expressed already in 1977 by G.M. Wolten and colleagues in their fundamental work , and has been confirmed over the years by all the experienced scientists of the field including Prof. Carlo Torre and many others until Mar 2016.
Dr. Felice Nunziata -Residui di sparo da freni a disco nr. 2 -Altre incongruenze scientifiche Ril... more Dr. Felice Nunziata -Residui di sparo da freni a disco nr. 2 -Altre incongruenze scientifiche Rileggendo l`articolo Thermal and microchemical investigation of automotive brake pad wear residues credo che, obiettivamente, possano mettersi in evidenza le seguenti perplessità in ordine al paradigma galileiano. 1.
PREMESSA Questo studio è stato presentato dagli autori nel corso del convegno internazionale BIEN... more PREMESSA Questo studio è stato presentato dagli autori nel corso del convegno internazionale BIENNAL FIREARMS CONFERENCE WITH ENFSI FIREARMS/GSR WORKING GROUP organizzato dalla Forensic Science Society e dallo European Network of Forensic Science Institutes (ENFSI), intitolato "Strenghtening the scientific basis of Firearms and GSR" (Rinforzando le basi scientifiche delle indagini sulle armi da fuoco e sui residui dello sparo) tenutosi a Leeds (UK) nei giorni 17-19 settembre 2014.
Balistica esterna _ External ballistics by Felice Nunziata
Journal of Cultural Heritage, 2005
XRF and micro-Raman stratigraphic microanalyses of fragments of some mural paintings, belonging t... more XRF and micro-Raman stratigraphic microanalyses of fragments of some mural paintings, belonging to the Archaeological Site of Oplonti (Napoli) and the Vigna Barberini site in the Palatino (Roma), were performed. In order to collimate the fluorescence X-rays emitted by the samples, an X-ray polycapillary conic collimator (PCC) has been used in front of the detector. This device arrangement is compact, versatile, and portable. The nature of the pigments, the compositional elements, and the thickness of the fragment layers have been studied. The stratigraphic analysis partially confirms the preparation techniques described by Plinius and Vitruvius; moreover it confirms the hypothesis that the artifacts are not fresco paintings. This work has been conducted within the context of a wider research on the Roman age mural paintings.
Structural segregation in GSR from mercuric primers. A preliminary study
Forensic Science International
Journal of Forensic Science & Criminology, 2017
In their first full report on the analysis of GSR by SEM-EDS, Wolten and colleagues stated that t... more In their first full report on the analysis of GSR by SEM-EDS, Wolten and colleagues stated that the great majority of the gunshot residue particles (GSR), between 70 to 100%, have a characteristic morphology thus providing a detection criterion holding significance equal to that provided by the elemental composition. In fact, the particles must have a spherical or spheroidal shape and their surface should appear amorphous, devoid of any crystalline characteristic.
Observations by scanning electron microscopy/energy dispersive x-ray spectroscopy (SEM/EDS) of un... more Observations by scanning electron microscopy/energy dispersive x-ray spectroscopy (SEM/EDS) of unfired standard primer material (lead/antimony/barium) are presented from the centerfire cartridge primers of Winchester, Speer and Remington. Also examined by SEM/EDS are the surfaces of thirtytwo gunpowders (GPs) from Winchester, Federal, Hercules, DuPont and Remington. Compounds of sulfur, potassium and barium as well as primer-like particles composed of lead, antimony and barium were found on the surfaces of many of these GPs. The elements of these compounds likely contribute to gunshot residue (GSR) generated by the discharge of a firearm. We introduce the term, ―hybrid GSR‖ which will account for both the contribution to primer GSR by the interior firearm surfaces GSR and the elements associated with GP.
Burnett, B.R., Nunziata, F. Divergent gunshot residues and characterization of the memory effect in a .22 caliber revolver and pistol
Egyptian Journal of Forensic Sciences 13 (2023), 2023
The forms and compositions of primer gunshot residue (GSR) in shooting cases have been routinely ... more The forms and compositions of primer gunshot residue (GSR) in shooting cases have been routinely analyzed in many crime labs by scanning electron microscope/energy-dispersive X-ray spectroscopy (SEM/EDS). Gunshot residue studies over the last 30 years have identified a contribution by residual GSR from surfaces within the firearm to GSR (the “memory effect”). In this study, we first focus on the GSR compositional differences between target, bore, and cylinder gap for a .22 caliber revolver which has received little attention in the literature. Secondly, we examine the behavior of elements involved in the residual contribution to GSR for a .22 caliber pistol.
On the problem of data interpretation in the analysis of iron-containing GSR particles
Forensic Chemistry Available online 9 January 2023, 100472 In Press, Journal Pre-proofWhat are Jo... more Forensic Chemistry
Available online 9 January 2023, 100472
In Press, Journal Pre-proofWhat are Journal Pre-proof articles?
On the problem of data interpretation in the analysis of iron-containing GSR particles
Author links open overlay panelMarcoRomeoaFeliceNunziatae
https://doi.org/10.1016/j.forc.2023.100472
Get rights and content
Highlights
•
Iron is an element that can be present within a GSR particle;
•
The iron present in a GSR particle can be derived from several sources;
•
Forensic experts hypothesize that the iron may have come from the barrel of the firearm;
•
Several iron particles from the barrel of the firearm and other sources were analyzed;
•
In gunfire with rusty barrels, iron particles aggregate with GSRs in the cooling phase.
Abstract
Many forensic experts hypothesize that iron found in gunshot residues (GSRs) derive from melted iron particles because the steel of the barrel consists mainly of iron. This is a strong hypothesis that deserve careful investigation. To this purpose, we focused our attention on erosion and corrosion mechanism occurring in the barrel that can influence GSRs. A preliminary physicochemical interpretation consistent with the analytical results was presented. Moreover, spectra and images of GSRs originated from the firing of ammunition by firearms having rusty barrels and of iron oxide particles not originated from the firing were analyzed. The obtained results are discussed, taking into account the chemical content and morphology of the observed particles taking in account the context both of the erosion and of the corrosion and of the GSRs formation process
Molybdenum in Gunshot Residue: Experimental Evidences and Detection Challenges in the Presence of Lead and Sulfur
Inorganic gunshot residue (GSR) analysis is carried out by scanning electron microscopy/energy-di... more Inorganic gunshot residue (GSR) analysis is carried out by scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDS)
in many forensic laboratories. Characteristic GSR often consists of lead–barium–antimony, commonly associated with sulfur. The strength
of forensic GSR evidence increases when unusual elements are found in residues collected both from the suspect and from the discharged
firearm. The presence of molybdenum in GSR, due to the use of MoS 2 lubricants in firearms, is experimentally demonstrated here for the
first time. The most intense molybdenum X-ray emissions are MoL peaks at 2.3 keV which overlap with PbM and SK families due to the
poor resolution of EDS detectors. When Pb, S, and Mo are allegedly present in the same particle, the reliability of automatic EDS routines is
at risk. Missing identifications or false detections and exclusions may then occur. Molybdenum should be considered as detected only if
MoK emissions meet the peak-to-background ratio minimum requirements. A strategy to spot Mo-containing residues is described,
based on the automated search of MoS 2 , using a new “Sulfur only” class added to the classification scheme, followed by careful manual
review of all GSR particles at an acceleration voltage of 30 kV. Our proposal improves commonly adopted forensic procedures currently
followed in casework.
Examination of firearm gunpowders by scanning electron microscopy/energy dispersive X-ray analysis
The surfaces of thirty-one gunpowders (GPs) from Winchester, Federal, Hercules, DuPont, and Remin... more The surfaces of thirty-one gunpowders (GPs) from Winchester, Federal, Hercules,
DuPont, and Remington were examined by scanning electron microscopy/energy
dispersive X-ray spectroscopy. Particles and surface coatings on 22 of the GPs had
compositions of sulfur/potassium/barium or sulfur/potassium detected. Primer-like
particles composed of lead/antimony/barium were found on surfaces of twelve GPs.
Gunpowders from fifteen different lots of Winchester 9 mm Silvertip ® hollow point
cartridges were found to vary in GP type (flake and flattened ball) and associated
inorganic compounds of sulfur/potassium/barium or sulfur/potassium or one with
only potassium. No inorganic particles or coatings were detected on two of these
Winchester GPs. The elements from the inorganic compounds on GPs likely contrib-
ute to gunshot residue generated by the discharge of a firearm.
Towards a robust interpretation of forensic analysis of phosphorus and calcium traces in gunshot residue
Journal of Analytical Atomic Spectrometry, 2019
Standard analysis of inorganic gunshot residue aims nowadays at lead, antimony and barium particl... more Standard analysis of inorganic gunshot residue aims nowadays at lead, antimony and barium particles of spherical shape, although other elements are detected that may be indicative of the ammunition brand or interaction with specific materials. Calcium and phosphorus can be present in the particle systems examined. There are two main sources of these elements in gunshot residue: components of the ammunition, e.g. Eley brand .22 long rifle caliber and bone fragments created during contact and close-range shooting. Samples of human bones of various ages and the residue from the interior of spent cartridges of ten different products of Eley brand .22 long rifle caliber ammunition were systematically characterised as reference materials to aid the interpretation of candidate GSR particles detected in evidence samples. We found that Ca : P ratios obtained by means of scanning electron microscopy with energy dispersive X-ray spectrometry from GSR particles larger than about 10 micrometres characterised bone fragments reliably. Although Ca and P may be detected as traces, for smaller (micron and sub-micron) particles the Ca : P ratio is not a reliable indicator of bone material. But in such cases qualitative interpretation taking into account interdisciplinary information can be achieved for forensic purposes. Three case studies encompassing various types and amounts of gunshot residue identified the possibilities and limitations in the differentiation between the potential sources of calcium and phosphorus present in inorganic gunshot residue.
In a famous paper published in 1982, a very special class of gunshot residue particles (GSR) was ... more In a famous paper published in 1982, a very special class of gunshot residue particles (GSR) was named by Samarendra Basu "peeled orange", due to their particular structure, consisting of a barium/antimony core covered by an outer lead leaflet. In this class of GSR particles the surface may show nodular structures of lead. Basu proposed an explanation in terms of a nucleus of antimony and barium that captures lead vapours produced after the explosion of a cartridge into a firearm: as solidification points of antimony and barium are close one another, both higher than solidification point of lead, he stated that lead occurs as a layer around the core in peeled orange GSR particles. In this paper we study the thermodynamic of the barium/antimony alloy and we hypothesize a formation process in terms of colloidal metal growth, charged particles and electrostatic attraction. We propose an updated model of formation for peeled orange GSR particles that explains the existence of outer lead leaflet and nodules in terms of electrostatic attraction of lead nanoparticles and instability of lead droplets.
Defence Technology
The possibility of identifying gunshot residue (GSR) particles produced by non-toxic primers cont... more The possibility of identifying gunshot residue (GSR) particles produced by non-toxic primers containing only titanium and zinc is a very difficult task using SEM/EDX analysis employed in the analysis of GSR originating from primers containing lead, barium and antimony. However, Bauer et al. demonstrated that non-toxic (TieZn) primers form a TiZn 2 O 4 spinel crystalline structure using SEM/EDX with EBSD (Electron Back Scatter Diffraction) and TKD (Transmission Kikuchi Diffraction), whereas GSR originating from gadolinium-doped TieZn primers form a non-crystalline glass phase. Here, a possible explanation of these different phenomena is hypothesized.
In their first full report on the analysis of GSR by SEM-EDS, Wolten and colleagues stated that t... more In their first full report on the analysis of GSR by SEM-EDS, Wolten and colleagues stated that the great majority of the gunshot residue particles (GSR), between 70 to 100%, have a characteristic morphology thus providing a detection criterion holding significance equal to that provided by the elemental composition. In fact, the particles must have a spherical or spheroidal shape and their surface should appear amorphous, devoid of any crystalline characteristic.
On a gunshot residue three-dimensional roundedness For the proper identification of GSR by SEM/ED... more On a gunshot residue three-dimensional roundedness
For the proper identification of GSR by SEM/EDX, together with a correct and congruent elemental analysis, is also essential to take into account the morphology of the particles and the nature of their surfaces. GSR corpuscles are formed during a rapid solidification process and, having assumed at the liquid state a spherical shape, they maintain this characteristic as solidification occurs. Their surfaces, probably due to a phenomenon of "grain refinement" , should appear completely amorphous at the normal working magnification with no trace of crystalline formations. This principle has been expressed already in 1977 by G.M. Wolten and colleagues in their fundamental work , and has been confirmed over the years by all the experienced scientists of the field including Prof. Carlo Torre and many others until Mar 2016.
Dr. Felice Nunziata -Residui di sparo da freni a disco nr. 2 -Altre incongruenze scientifiche Ril... more Dr. Felice Nunziata -Residui di sparo da freni a disco nr. 2 -Altre incongruenze scientifiche Rileggendo l`articolo Thermal and microchemical investigation of automotive brake pad wear residues credo che, obiettivamente, possano mettersi in evidenza le seguenti perplessità in ordine al paradigma galileiano. 1.
PREMESSA Questo studio è stato presentato dagli autori nel corso del convegno internazionale BIEN... more PREMESSA Questo studio è stato presentato dagli autori nel corso del convegno internazionale BIENNAL FIREARMS CONFERENCE WITH ENFSI FIREARMS/GSR WORKING GROUP organizzato dalla Forensic Science Society e dallo European Network of Forensic Science Institutes (ENFSI), intitolato "Strenghtening the scientific basis of Firearms and GSR" (Rinforzando le basi scientifiche delle indagini sulle armi da fuoco e sui residui dello sparo) tenutosi a Leeds (UK) nei giorni 17-19 settembre 2014.
Le righe che seguono sono l`enunciazione di un principio non la fattuale costruzione di un modello.
Il profilo aerodinamico ottimale dei proiettili Uno dei più interessanti problemi relativi alla b... more Il profilo aerodinamico ottimale dei proiettili Uno dei più interessanti problemi relativi alla balistica esterna è quello della ricerca del profilo di un proiettile che risenta il meno possibile della forza di resistenza aerodinamica.
Sarno, toponimo indoeuropeo?
Le notizie sulla distruzione del Castello di Palma Campania si riducono a quanto desumibile dal l... more Le notizie sulla distruzione del Castello di Palma Campania si riducono a quanto desumibile dal libro, edito nel 1938, del dott. Pasquale Nappi " Un paese nella gloria del sole: Palma Campania" : infatti a pag. 145 del suddetto libro si legge: "……si vuole che il Generale Pinelli, esasperato contro i montanari di Castello, ritenuti unici ad aiutare i briganti del Gravino, ordinasse un giorno alle sue artiglierie di prendere posizione in contrada Ponte Svizzero e tirare su Castello; in quella evenienza il torrione del nostro antico maniero, colpito dal tiro dei cannoni del Pinelli, cadde in rovina per buona parte......." Il Generale Pinelli comandava una Colonna Mobile che era, con verosimiglianza, formata da Fanteria di linea, da Bersaglieri e da una Batteria d`artiglieria da campagna.
Attualmente il toponimo TRIBUCCHI e` riferito ad un pianoro che insiste nel Comune di Palma Campa... more Attualmente il toponimo TRIBUCCHI e` riferito ad un pianoro che insiste nel Comune di Palma Campania (Na) sito a circa 700 mt s.l.m.. Il primo luogo abitato che si raggiunge nel discendere da TRIBUCCHI verso la pianura e` la frazione Castello del Comune di Palma Campania: in essa si apprezzano le rovine di un castello, il cui ultimo rimaneggiamento in termini di architettura fortificata, sembra mostrare uno stile, verosimilmente, longobardo. La frazione Castello di Palma (a sinistra nella figura di sotto; tra l`altro se ne scorge un
Foto tratta dall'archivio di famiglia Coppola, Luigi Michele Determinazione dell'acido solforico ... more Foto tratta dall'archivio di famiglia Coppola, Luigi Michele Determinazione dell'acido solforico libero in presenza di solfati 1873 Coppola, Luigi Michele Contribuzione alla storia chimica dello Stereocaulon Vesuvianum: notizie preliminari Rendicontazioni dell'Accademia di Scienze Fisiche e Matematiche di Napoli -fasc. 10 pag.4 Ottobre 1879 Coppola, Luigi Michele Produzione artificiale dell'oligisto sulle lave vesuviane Gazzetta Chimica Italiana Anno IX, pag. 452 -455 Palermo 1879 Palmeri, Paride; Coppola, Luigi Michele Acque minerali del Pio Monte della Misericordia in Casamicciola (Ischia) : Analisi chimiche delle acque, delle concrezioni e dell'atmosfera delle stufe / fatta da Paride Palmeri e Michele Coppola. Ricerche storiche sul nome e sul luogo e confronti delle analisi delle acque di Gurgitello Napoli : De Bonis, 1879 Palmeri, Paride; Coppola, Luigi Michele Terme del Pio Monte della misericordia in Casamicciola (Ischia) / ricerche chimiche fatte dai professori Paride Palmeri e Michele Coppola ; ricerche storiche fatte dal prof. Paride Palmieri Napoli : Tipografia dell'Accademia delle Scienze, 1881 Coppola, Luigi Michele Ricerche chimiche sullo stereocaulon vesuvianum : lettera al prof. Emanuele Paternò / del prof. Michele Coppola 1882 Coppola, Luigi Michele La pozzolana di Bacoli nei lavori marittimi e sua importanza nell'economia nazionale Napoli: Stab. tip. Giovanni Barca, 1933 Coppola, Luigi Michele Sulla separazione dell'antimonio dallo stagno nei loro composti per mezzo del ferro / M. Coppola Roma: Soc. Anonima poligrafica italiana, 1937 Coppola, Luigi Michele I minerali metalliferi della Calabria e le sabbie ferrifere delle spiagge vulcaniche italiane 1940
Atti del Circolo Culturale “B. G. Duns Scoto” di Roccarainola, 4, dicembre 1978, pp. 28-38
Resoconto stenografico 597 -seduta di lunedì 4 marzo 1991 Presidenza del Vicepresidente Adolfo SA... more Resoconto stenografico 597 -seduta di lunedì 4 marzo 1991 Presidenza del Vicepresidente Adolfo SARTI PRESIDENTE. L'ordine del giorno reca: Interpellanza e interrogazioni.
Olita 'òi • 'Z&UOHwciiio^, V-SECONDA EDIZIONE, W A P © Ja 'I 9 DALLA TIPOGRAFIA DI O. PALMA. THE ... more Olita 'òi • 'Z&UOHwciiio^, V-SECONDA EDIZIONE, W A P © Ja 'I 9 DALLA TIPOGRAFIA DI O. PALMA. THE NEW YORK PUBLIC LIBRARY 535373 ASTOn, LENOX AND TILOEN FOUNOAI^ws ■ 1-. , *\
Il libro espone tutto quanto è necessario sapere per progettare un poligono di tiro per ogni tipo... more Il libro espone tutto quanto è necessario sapere per progettare un poligono di tiro per ogni tipo di tiro; balistica, rimbalzo dei proiettili, acustica,inquinamento da piombo, pericolo di incendio ed esplosioni, normativa da applicare per licenze e gestione. In allegato le linee guida tedesche e canadesi e le circolari del Min. della Difesa. Riccamente illustrato.
La scoperta dell'America ha rappresentato sempre una specie di pomo della discordia tra i popoli,... more La scoperta dell'America ha rappresentato sempre una specie di pomo della discordia tra i popoli, e anche ai giorni nostri non mancano davvero coloro i quali attraverso una apparenza di copiosa dottrina vorrebbero togliere a Colombo il vanto della grande impresa.
NÉRON Librairie Arthème Fayard, Paris, 1962 Prima edizione italiana, tradotta a cura di ALESSAN... more NÉRON
Librairie Arthème Fayard, Paris, 1962
Prima edizione italiana, tradotta a cura di ALESSANDRO LESSONA E RICCARDO M. DEGLI UBERTI
Journal of Cultural Heritage, 2005
XRF and micro-Raman stratigraphic microanalyses of fragments of some mural paintings, belonging t... more XRF and micro-Raman stratigraphic microanalyses of fragments of some mural paintings, belonging to the Archaeological Site of Oplonti (Napoli) and the Vigna Barberini site in the Palatino (Roma), were performed. In order to collimate the fluorescence X-rays emitted by the samples, an X-ray polycapillary conic collimator (PCC) has been used in front of the detector. This device arrangement is compact, versatile, and portable. The nature of the pigments, the compositional elements, and the thickness of the fragment layers have been studied. The stratigraphic analysis partially confirms the preparation techniques described by Plinius and Vitruvius; moreover it confirms the hypothesis that the artifacts are not fresco paintings. This work has been conducted within the context of a wider research on the Roman age mural paintings.
Questa rassegna prende origine dalle problematiche relative all'arricchimento dell'uranio ai fini... more Questa rassegna prende origine dalle problematiche relative all'arricchimento dell'uranio ai fini della produzione di materiale fissile, segnatamente alle tecnologie ed ai processi industriali che ne determinano i sottoprodotti tra cui l'uranio impoverito, prosegue con la caratterizzazione di quest'ultimo, dei suoi impieghi bellici e della sua distribuzione nelle matrici biologiche ed ambientali. Nello specifico la tematica dell'arricchimento verrà trattata fornendo un taglio in termini di teoria fisica che partendo dai paradigmi interpretativi della meccanica statistica classica approfondirà gli aspetti isotopici alla luce della termodinamica, della fisica statistica e della meccanica quantistica.
Errors, Omissions and Mistaken Testimony in a Shooting Case
Forensic Science International: Reports, 2022
Gelatina balistica: un approccio non newtoniano
Semi-computational approach for assessing the damage to human soft tissues: the case of FMJRN versus HP-XTP 9 mm bullet penetration in ballistic soap
Forensic Science Medicine and Pathology, 2023
Ballistic soap blocks are used in wound ballistics to assess the potential damage of the ammuniti... more Ballistic soap blocks are used in wound ballistics to assess the potential damage of the ammunition employed, allowing observation of the energy transfer occurred along the wound channel. The density and viscosity of ballistic soap (also called tissue simulant) simulate, to a good degree of approximation, the effect resulting from the interaction of penetrating bullets with living human soft tissue. Ballistic soap has a “plastic reaction” to bullet penetration, and therefore, unlike ballistic gelatin, the expansion of temporary cavity remains imprinted in the tissue simulant. When the soap blocks are sectioned or divided with nondestructive instrumental techniques (e.g., Compton’s scattering tomography), it’s possible, therefore, to observe the temporary cavity determined by the penetration of the bullet. This study provides insight into the severity of injuries originated from two different types of bullets of the same caliber by employing ballistic soap as a tissue simulant. In addition, it provides guidance to forensic practitioners on the proper use of ballistic soap for simulating gunshot wounds. The semi-computational approach employed, based on the results obtained from the firing tests, allowed the authors to understand that there is likely a threshold value of projectile energy density, close to 1 J/mm², beyond which its penetration into the ballistic soap ceases.