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Preparation and Characterization of Fe-Based Metallic Glasses with Pure and Raw Elements

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Chinese Physics Letters 2012年第11期29卷 207-210页

作者： Nassima Seghairi Badis Bendjemil Gabriel Lavorato Alberto Castellero marcello baricco Dipartimento di Chimica I.F.M/NIS/CNISM/INSTM Universitàdi TorinoVia Giuria 910125 TrinoItaly University of Larbi Ben M'hidi Oum El BouaghiAlgeria LASEA Faculty of SciencesDepartment of ChimistryUniversity of AnnabaAlgeria University of Guelma P.O.Box 1224000 GuelmaAlgeria

Amorphous alloys with a composition(at.%)Fe_(48)Cr_(15)Mo_(14)C_(15)B_(6)Y_(2) were prepared by using either pure elements(alloy B1)or a commercial AISI430 steel as a base material(B2).When prepared from pure elements,alloy(B1)could be cast in plate form with a fixed thickness of 2 mm and variable lengths between 10 and 20 mm by means of copper-mold injection in an air *** the case of alloy B2,prepared by using commercial grade raw materials,rods of 2 mm diameter are ***(B1 and B2)of width 5 mm and thickness about 30μm are prepared from the arc-melted ingots using a single roller melt spinner at a wheel speed of 40 m/*** thermal and structural properties of the samples are measured by a combination of differential scanning calorimetry(DSC),x-ray diffraction and scanning electron *** compositions are checked by energy dispersive spectroscopy analysis.X-ray diffraction and scanning electron microscopy observations confirm that an amorphous structure is obtained in all the samples.A minor fraction of crystalline phases(oxides and carbides)is detected on the as-cast *** of hardness and Young modulus were measured by nanoindentation for both the *** effects of adverse casting conditions(such as air atmosphere,non-conventional injection copper mold casting and the partial replacement of pure elements with commercial grade raw materials)on the glass formation and properties of the alloy are discussed.

关键词： alloy casting roller

Crystallization Behavior of Fe_(50−x)Cr_(15)Mo_(14)C_(15)B_(6)M_(x)(x=0,2 and M=Y,Gd)Bulk Metallic Glasses and Ribbons by in situ High Temperature X-Ray Diffraction

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Chinese Physics Letters 2012年第10期29卷 235-238页

作者： Badis Bendjemil Abderrezak Bouchareb Ahmed Belbah Jamel Bougdira Rafael Piccin marcello baricco LEREC Department of PhysicsUniversity of Badji-mokhtar-AnnabaAlgeria 2Department of Mechanical EngineeringFaculty of Science and TechnologyUniversity of 8 Mai 1945 GuelmaAlgeria 3Institut Jean LAMOURUniversity Henri poincarréNancyFrance 4IFM/NISUniversitàdi TorinoVia P.Giuria 910125 TorinoItaly

The effect of rare earth addition on thermal stability of Fe_(50−x)Cr_(15)Mo_(14)C_(15)B_(6)M_(x)(x=0,2 and M=Y,Gd)is *** and structural properties are measured using differential scanning calorimetry and x-ray diffraction,*** microstructure is observed by using a scanning electron microscope,and chemical composition is checked by energy dispersive spectroscopy *** effect of high temperature on the isothermal crystallization of Fe_(50−x)Cr_(15)Mo_(14)C_(15)B_(6)M_(x)(x=0,2 and M=Y,Gd)bulk metallic glass and ribbons is investigated by high-temperature x-ray *** is found that the crystallization behavior of Fe_(50−x)Cr_(15)Mo_(14)C_(15)B_(6)M_(x)(x=0,2 and M=Y,Gd)bulk metallic glass strongly depends on the annealing *** different crystallization behavior is believed to be due to the different structures that the metallic glass possesses at different temperatures.

关键词： microstructure crystallization metallic

Antioxidant and lipoxygenase inhibitory properties of a novel flavonoid from Pistacia chinensis Bunge and its molecular docking analysis

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Traditional Medicine Research 2025年第2期10卷 30-36页

作者： Abdur Rauf Zuneera Akram Naveed Muhammad Najla AlMasoud Taghrid Saad Alomar Saima Naz Abdul Wadood Chandni Hayat marcello Iriti Department of Chemistry University of SwabiAmbar 23561Pakistan Department of Pharmacology Faculty of Pharmaceutical SciencesBaqai Medical UniversityKarachi 74600Pakistan Department of Pharmacy Abdul Wali Khan University MardanMardan 23200Pakistan Department of Chemistry College of SciencePrincess Nourah bint Abdulrahman UniversityRiyadh 11671Saudi Arabia Department of Biotechnology BKUC-Bacha Khan University CharsaddaCharsadda 24620Pakistan Department of Biochemistry Abdul Wali Khan University MardanMardan 23200Pakistan Department of Biomedical Surgical and Dental SciencesUniversity of MilanMilan 20129Italy National Interuniversity Consortium of Materials Science and Technology(INSTM) Firenze 50121Italy

Background:Pistacia chinensis Bunge has been traditionally used to manage various conditions,including asthma,pain,inflammation,hepatoprotection,and *** study was conducted to investigate the antioxidant and anti-lipoxygenase(LOX)properties of the isolated compound 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4H-chromen-4-one from Pistacia ***:LOX assay and antioxidant activity using 2,2-diphenyl-1-picrylhydrazyl(DPPH)assay were *** docking studies were conducted using a molecular operating ***:The LOX assay revealed significant inhibitory effects at 0.2µM concentration,with an IC50 value of 37.80µ*** antioxidant effect demonstrated dose-dependency across 5 to 100µg/mL concentrations,reaching 93.09%at 100µg/mL,comparable to ascorbic acid’s 95.43%*** docking studies highlighted strong interactions with the lipoxygenase enzyme,presenting an excellent docking score of-10.98 kcal/***:These findings provide valuable insights into Pistacia chinensis’chemical components and biological effects,reinforcing its traditional medicinal applications.

关键词： Pistacia chinensis Bunge antioxidant DPPH assay antilipoxygenase docking analysis

K-Corruption Intermittent Attacks for Violating the Codiagnosability

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IEEE/CAA Journal of Automatica Sinica 2025年第1期 159-172页

作者： Ruotian Liu Yihui Hu Agostino marcello Mangini Maria Pia Fanti IEEE the Department of Electrical and Information Engineering Polytechnic University of Bari the School of Automation Xi'an University of Posts and Telecommunications

In this work, we address the codiagnosability analysis problem of a networked discrete event system under malicious attacks. The considered system is modeled by a labeled Petri net and is monitored by a series of sites, in which each site possesses its own set of sensors, without requiring communication among sites or to any coordinators. A net is said to be codiagnosable with respect to a fault if at least one site could deduce the occurrence of this fault within finite steps. In this context, we focus on a type of malicious attack that is called stealthy intermittent replacement attack. The stealthiness demands that the corrupted observations should be consistent with the system's normal behavior, while the intermittent replacement setting entails that the replaced transition labels must be recovered within a bounded of consecutive corrupted observations(called as K-corruption intermittent attack). Particularly, there exists a coordination between attackers that are separately effected on different sites, which holds the same corrupted observation for each common transition under attacks. From an attacker viewpoint, this work aims to design Kcorruption intermittent attacks for violating the codiagnosability of systems. For this purpose, we propose an attack automaton to analyze K-corruption intermittent attack for each site, and build a new structure called complete attack graph that is used to analyze all the potential attacked paths. Finally, an algorithm is inferred to obtain the K-corruption intermittent attacks, and examples are given to show the proposed attack strategy.

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Innovative Services for Electric Mobility Based on Virtual Sensors and Petri Nets

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IEEE/CAA Journal of Automatica Sinica 2023年第9期10卷 1845-1859页

作者： Agostino marcello Mangini Michele Roccotelli Department of Electrical and Information Engineering Polytechnic University of BariBari 70126Italy

About 60%of emissions into the earth’s atmosphere are produced by the transport sector,caused by exhaust gases from conventional internal combustion *** effective solution to this problem is electric mobility,which significantly reduces the rate of urban *** use of electric vehicles(EVs)has to be encouraged and facilitated by new information and communication technology(ICT)*** help achieve this goal,this paper proposes innovative services for electric vehicle users aimed at improving travel and charging *** goal is to provide a smart service to allow drivers to find the most appropriate charging solutions during a trip based on information such as the vehicle’s current position,battery type,state of charge,nearby charge point availability,and *** particular,the drivers are supported so that they can find and book the preferred charge option according to time availability and the final cost of the charge points(CPs).To this purpose,two virtual sensors(VSs)are designed,modeled and simulated in order to provide the users with an innovative service for smart CP searching and *** particular,the first VS is devoted to locate and find available CPs in a preferred area,whereas the second VS calculates the charging cost for the EV and supports the driver in the booking phase.A UML activity diagram describes VSs operations and cooperation,while a UML sequence diagram highlights data exchange between the VSs and other electromobility ecosystem actors(CP operator,EV manufacturer,etc.).Furthermore,two timed Petri Nets(TPNs)are designed to model the proposed VSs,functioning and interactions as discrete event *** Petri Nets are synchronized by a single larger TPN that is simulated in different use cases and scenarios to demonstrate the effectiveness of the proposed VSs.

关键词： Charge point booking electric mobility EV charging Petri Net virtual sensor

A Modified Gas-Kinetic Scheme for Turbulent Flow

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Communications in Computational Physics 2014年第6期16卷 239-263页

作者： marcello Righi School of Engineering Zurich University of Applied SciencesTechnikumstrasse 98401 WinterthurSwitzerland.

The implementation of a turbulent gas-kinetic scheme into a finite-volume RANS solver is put forward,with two turbulent quantities,kinetic energy and dissipation,supplied by an allied turbulence *** paper shows a number of numerical simulations of flow cases including an interaction between a shock wave and a turbulent boundary layer,where the shock-turbulent boundary layer is captured in a much more convincing way than it normally is by conventional schemes based on the Navier-Stokes *** the gas-kinetic scheme,the modeling of turbulence is part of the numerical scheme,which adjusts as a function of the ratio of resolved to unresolved scales of *** so doing,the turbulent stress tensor is not constrained into a linear relation with the strain *** it is modeled on the basis of the analogy between particles and eddies,without any assumptions on the type of turbulence or flow *** schemes lack multiscale mechanisms:the ratio of unresolved to resolved scales–very much like a degree of rarefaction–is not taken into account even if it may grow to non-negligible values in flow regions such as *** is precisely in these flow regions,that the turbulent gas-kinetic scheme seems to provide more accurate predictions than conventional schemes.

关键词： Gas kinetic theory turbulence modeling compressible flow shock boundary layer interaction.

Steatosis as a co-factor in chronic liver diseases

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World Journal of Gastroenterology 2010年第10期16卷 1171-1176页

作者： marcello Persico Achille Iolascon Department of Internal Medicine Second University of Naples Department of Biochemistry and Medical Biochemistry University Federico II

The finding of lipid accumulation in the liver, so-called hepatic steatosis or non-alcoholic fatty liver disease, is a common condition frequently found in healthy subjects. Its prevalence, in fact, has been estimated by magnetic resonance studies to be about 35% in the general population and 75% in obese persons. Nevertheless, its presence generates liver damage only in a small percentage of subjects not affected by other liver diseases. It should be defined as a "co-factor" capable of affecting severity and progression, and also therapeutic perspectives, of liver diseases to which it is associated. Herein we will evaluate the impact of hepatic steatosis and obesity on the most common liver diseases: chronic viral hepatitis C and B, and alcoholic liver disease.

关键词： Liver Steatosis Non-alcoholic fatty liver disease

Debulking surgery and hyperthermic intrathoracic chemotherapy(HITHOC)for lung cancer

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Chinese Journal of Cancer Research 2017年第6期29卷 533-534页

作者： marcello Migliore Thoracic Surgery Unit A.O.U.Policlinico-Vittorio EmanueleDepartment of Surgery and Medical SpecialitiesUniversity of CataniaCatania 95123Italy

One hundred years ago, the first patients with lung cancer have been reported （1）. Since then long term survival in patients with lung cancer remains disappointing, and this is not only due to the delayed diagnosis ... 详细信息

关键词： Lung cancer NSCLC advanced stage cytoreduction hyperthermic intraoperative intrapleuralchemotherapy

Surveillance strategies for precancerous gastric conditions after Helicobacter pylori eradication:There is still need for a tailored approach

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World Journal of Gastroenterology 2021年第46期27卷 8033-8039页

作者： Endrit Shahini marcello Maida Division of Gastroenterology National Institute of Research"Saverio De Bellis"Castellana Grotte(Bari)70013Italy Section of Gastroenterology S.Elia-Raimondi HospitalCaltanissetta 93017Italy

Prevailing evidence declares that Helicobacter pylori (H. pylori) eradication therapycould shift precancerous gastric conditions (PGC) and positively confines gastriccancer (GC) risk during long-term endoscopic follow-up. Nonetheless, there is ayet unsolved controversy regarding the best-individualized surveillance strategiesfollowing H. pylori eradication, based on malignant risk stratification. This lastdispute is due to the uncertainty of contemporary evidence and the role of *** inflammatory changes in underestimating PGC at the index ***, the current state of the art suggests that it is reasonable that highqualityendoscopy with histological assessment for the most accurate diagnosis ofPGC may be delayed in selected high-risk patients without alarm signs formalignancy, following the eradication of H. pylori. Notwithstanding, these aspectsneed to be further examined in the next future to establish and optimize the mostbeneficial and cost-effective strategies for recognizing and managing H. pyloripositivepatients with PGC in the short- and long-term follow-up. Accordingly,additional studies are yet required to sharpen the hazard stratification of patientswith the greatest chance of GC evolution, also recognizing the evolving racial,ethnic, immigration factors and the necessity of novel biomarkers to limit GCdevelopment or accomplish a diagnosis of malignancy at an early stage.

关键词： Helicobacter pylori Endoscopic