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A Quadrature-Based Kinetic Model for Dilute Non-Isothermal Granular Flows

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Communications in Computational Physics 2011年第6期10卷 216-252页

作者： alberto.passalacqua Janine E.Galvin Prakash Vedula Christine M.Hrenya Rodney O.Fox Department of Chemical and Biological Engineering Iowa State UniversityAmesIA 50011-2230USA United States Department of Energy National Energy Technology Laboratory MorgantownWV 26507-0880USA School of Aerospace and Mechanical Engineering University of OklahomaNormanOK 73019-0601USA Department of Chemical and Biological Engineering University of ColoradoBoulderCO 80309-0424USA.

A moment method with closures based on Gaussian quadrature formulas is proposed to solve the Boltzmann kinetic equation with a hard-sphere collision kernel for mono-dispersed *** orders of accuracy in terms of the moments of the velocity distribution function are considered,accounting for moments up to seventh ***-based closures for four different models for inelastic collisionthe Bhatnagar-Gross-Krook,ES-BGK,the Maxwell model for hard-sphere collisions,and the full Boltzmann hard-sphere collision integral-are derived and *** approach is validated studying a dilute non-isothermal granular flow of inelastic particles between two stationary Maxwellian *** obtained from the kinetic models are compared with the predictions of molecular dynamics(MD)simulations of a nearly equivalent system with finite-size *** influence of the number of quadrature nodes used to approximate the velocity distribution function on the accuracy of the predictions is *** for constitutive quantities such as the stress tensor and the heat flux are provided,and show the capability of the quadrature-based approach to predict them in agreement with the MD simulations under dilute conditions.

关键词： Kinetic equation quadrature-based moment method granular gas collision integral BGK-type model

PLANNING OF DYNAMICALLY FEASIBLE TRAJECTORIES FOR TRANSLATIONAL,PLANAR,AND UNDERCONSTRAINED CABLE-DRIVEN ROBOTS

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Journal of Systems Science & Complexity 2013年第5期26卷 695-717页

作者： TREVISANI alberto Department of Management and Engineering(DTG) Universita degli Studi di PadovaStradella S.Nicola 336100 VicenzaItaly

Extensively studied since the early nineties,cable-driven robots have attracted the growing interest of the industrial and scientific community due to their desirable and peculiar *** particular,underconstrained and planar cable robots can find application in several fields,and specifically,in the packaging *** planning of dynamically feasible trajectories(i.e.,trajectories along which cable slackness and excessive tensions are avoided) is particularly challenging when dealing with such a topology of cable robots,which rely on gravity to maintain their cables in *** paper,after stressing the current relevance of cable robots,presents an extension and a generalization of a model-based method developed to translate typical cable tension bilateral bounds into intuitive limits on the velocity and acceleration of the robot end effector along a prescribed *** a new formulation of the method is based on a parametric expression of cable *** computed kinematic limits can then be incorporated into any trajectory planning *** method is developed with reference to a hybrid multi-body cable robot topology which can be functionally advantageous but worsen the problem of keeping feasible tensions in the cables both in static and dynamic *** definition of statically feasible workspace is also introduced to identify the positions where static equilibrium can be maintained with feasible ***,some aspects related to the practical implementation of the method are discussed.

关键词： Cable robot dynamically feasible trajectories statically feasible workspace trajectoryplanning.

Electrocatalytic production of glycolic acid via oxalic acid reduction on titania debris supported on a TiO_(2)nanotube array

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Journal of Energy Chemistry 2022年第5期31卷 669-678页

作者： Francesco Pio Abramo Federica De Luca Rosalba passalacqua Gabriele Centi Gianfranco Giorgianni Siglinda Perathoner Salvatore Abate Department of ChiBioFarAM(Industrial Chemistry) University of MessinaERIC aisbl and INSTM/CASPEV.le F.Stagno d’Alcontres 31Messina 98166Italy University of Calabria Department of Environmental EngineeringLaboratory of Industrial Chemistry and Catalysis Via P.Bucci87036 RendeCSItaly

Electrodes prepared by anodic oxidation of Ti foils are robust and not toxic materials for the electrocatalytic reduction of oxalic acid to glycolic acid, allowing the development of a renewable energy-driven process for producing an alcoholic compound from an organic acid at low potential and room temperature. Coupled with the electrochemical synthesis of the oxalic acid from CO_(2),this process represents a new green and low-carbon path to produce added value chemicals from CO_(2). Various electrodes prepared by anodic oxidation of Ti foils were investigated. They were characterized by the presence of a TiO_(2) nanotube array together with the presence of small patches, debris, or TiO_(2) nanoparticles. The concentration of oxygen vacancies, the amount of Ti^(3+) measured by X-ray photoelectron spectroscopy(XPS) and the intensity of the anodic peak measured by cyclic voltammetry, were positively correlated with the achieved oxalic acid conversion and glycolic acid yield. The analysis of the results indicates the presence of small amorphous TiO_(2) nanoparticles(or surface patches or debris) interacting with TiO_(2) nanotubes, the sites responsible for the conversion of oxalic acid and glycolic acid yield. By varying this structural characteristic of the electrodes, it is possible to tune the glycolic acid to glyoxylic acid relative ratio. A best cumulative Faradaic efficiency(FE) of about 84% with FE to glycolic acid around 60% and oxalic conversion about 30% was observed.

关键词： Oxalic acid TiO_(2)nanotubes Glyoxylic acid Glycolic acid Electrocatalysis

Response to Goldstein et al.(2022)Humanitarian action in academic institutions:a case study in the ethical stewardship of unidentified forensic cases

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Forensic Sciences Research 2022年第4期7卷 826-829页

作者： Nicholas passalacqua Brian Spatola Richard Thomas Department of Anthropology Western Carolina UniversityCullowheeNCUSA National Museum of Health and Medicine Silver SpringMDUSA Anthropology Unit Federal Bureau of InvestigationQuanticoVAUSA

Dear editor,In opening,we want to thank Goldstein et al.[1]and acknowledge their hard work and dedication to the practice of forensic anthropology and to their work identifying unknown *** agree wholeheartedly that there is a long-standing need for innovative and collaborative approaches to unidentified,cold-case investigations and their article is an important contribution to that literature[2-6].

关键词： al. thank editor

Three-dimensional single particle tracking using 4π self-interference of temporally phase-shifted fluorescence

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Light(Science & Applications) 2023年第3期12卷 415-424页

作者： Leanne Maurice alberto Bilenca Biomedical Engineering Department Ben-Gurion University of the Negev1 Ben Gurion BlvdBe’er-Sheva84105Israel Ilse Katz Institute for Nanoscale Science and Technology Ben-Gurion University of the Negev1 Ben Gurion BlvdBe’er-Sheva84105Israel

Single particle tracking in three dimensions is an indispensable tool for studying dynamic processes in various disciplines,including material sciences,physics,and biology,but often shows anisotropic three-dimensional spatial localization precision,which restricts the tracking precision,and/or a limited number of particles that can be tracked simultaneously over extended *** we developed an interferometric,three-dimensional fluorescence single particle tracking method based on conventional widefield excitation and temporal phase-shift interference of the emitted,high-aperture-angle,fluorescence wavefronts in a greatly simplified,free-running,triangle interferometer that enables tracking of multiple particles at the same time with<10-nm spatial localization precision in all three dimensions over extended volumes(~35×35×2μm^(3))at video rate(25 Hz).We applied our method to characterize the microenvironment of living cells and up to~40μm deep in soft materials.

关键词： materials particle dimensions

=actors influencing wild boar damage to agricultural crops in Sardinia （Italy）

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Current Zoology 2017年第5期63卷 507-514页

作者： Marco LOMBARDINI alberto MERIGGI alberto FOZZL Department of Earth and Environmental Sciences University of Pavia Via Ferrata 1 27100 Pavia Italy Province of Olbia-Tempio Via A. Nanni 17/19 07026 01bia Italy

Crop damage by wildlife is a frequent source of human-wildlife conflict. Understanding which fac-tors increase the risk of damage is crucial to the development of effective management *** aims of this study were to provide a general description of agricultural damage caused by wildboar Sus scrofa meridionalis over a 7-year period in North-eastern Sardinia （Mediterranean Italy）,and to formulate a predictive model of damage risk. We recorded a total of 221 cases of wild boardamage, with economic losses amounting to 483,982 Euros. Damage events mostly involved vine-yards, meadows and oat fields, and were characterized by a peak incidence in summer and earlyautumn, and a minimum in spring. Damaged fields were characterized by an increasing presenceof permanent crops, a decreasing presence of woodlands, maquis and urban areas, and a reduceddistance from shelter areas （forests and shrublands）. The analysis of spatiotemporal variation ofboar-induced damage and the identification of factors that augment the risk of damage providesessential information for contributing to the development of a more effective plan for managingwild boar populations.

关键词： Human-wildlife conflict, Sus scrofa meridionalis, risk modelling, landscape structure, wild boar management.

Is acute recurrent pancreatitis a chronic disease?

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World Journal of Gastroenterology 2008年第7期14卷 995-998页

作者： alberto Mariani Pier alberto Testoni Division of Gastroen-terology & Gastrointestinal Endoscopy Vita-Salute San Raffaele University-Scientific Institute San RaffaeleMilanItaly

Whether acute recurrent pancreatitis is a chronic disease is still debated and a consensus is not still reached as demonstrated by differences in the classification of acute recurrent pancreatitis. There is major evidence for considering alcoholic pancreatitis as a chronic disease ab initio while chronic pancreatitis lesions detectable in biliary acute recurrent pancreatitis (ARP) seem a casual association. Cystic fibrosis transmembrane con-ductance regulator (CFTR) gene mutation, hereditary and obstructive pancreatitis seem an acute disease that progress to chronic pancreatitis, likely as a consequence of the activation and proliferation of pancreatic stellate cells that produce and activate collagen and therefore fibrosis. From the diagnostic point of view, in patients with acute recurrent pancreatitis Endoscopic ultrasound (EUS) seems the more reliable technique for an accurate evaluation and follow-up of some ductal and parenchymal abnormalities suspected for early chronic pancreatitis.

关键词： Classification of pancreatitis Acute recurrent pancreatitis Chronic pancreatitis Alcoholic pancreatitis Pancreatic stellate cells

Semiconductor,molecular and hybrid systems for photoelectrochemical solar fuel production

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Journal of Energy Chemistry 2017年第2期26卷 219-240页

作者： Rosalba passalacqua Siglinda Perathoner Gabriele Centi Department of Chemical BiologicalPharmaceutical and Environmental SciencesUniversity of MessinaV.le F.Stagno d’Alcontres 3198166 MessinaItaly Department of Mathematics and Computational Sciences Physical Sciences and Earth SciencesUniversity of MessinaV.le F.Stagno d’Alcontres 3198166 MessinaItaly CASPE(INSTM Laboratory of Catalysis for Sustainable Production&Energy)/ERIC aisbl(European Research Institute of Catalysis) University of MessinaV.le F.Stagno d’Alcontres 3198166 MessinaItaly

The paper shortly reviews the basic direct approaches applied in searching for viable solutions to solar fuel production. These are generally distinguished in molecular and semiconductor(non-molecular)systems, however, hybrid strategies, proposed recently, have also been included. The most promising efforts are considered, highlighting key aspects and emerging critical issues. Special attention is paid to aspects such as electrode architecture, device design, and main differences in the scientific vision and challenges to directly produce solar fuels. This overview could be useful to orientate the readers in the wide panorama of research activities concerning water splitting, natural and artificial photosynthesis, and solar fuel production through the identification of common aspects, specialties and potentialities of the many initiatives and approaches that are developing worldwide in this field with the final aim to meet world energy demand.

关键词： Solar fuels production CO2 reduction Artificial photosynthesis PEC cells Semiconductor systems Molecular systems Hybrid nanobiocatalytic systems

New genetic markers for male fertility

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Asian Journal of Andrology 2012年第6期14卷 807-808页

作者： alberto Ferlin Department of Molecular Medicine & Centre for Human Reproduction Pathology University of Padova Padova 35121 Italy

Studies in the last years deFmitively demonstrate the high prevalence of gen- etic causes of spermatogenic impairment. A large proportion of infertile males does not receive a dear diagnosis and are reported as idiopathic or unexplained, also because standard semen analysis cannot clearly distinguish fertile from infertile populations.

关键词：