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Cross-flow analysis of injection wells in a multilayered reservoir

Petroleum 2016年第3期2卷 273-281页

作者： Mohammadreza Jalali Jean-Michel Embry francesco sanfilippo Frederic J.Santarelli Maurice B.Dusseault Geological Institute ETH ZurichZurichSwitzerland Baker Hughes AberdeenUnited Kingdom Geomec Environmental Management AS StavangerNorway Earth&Environmental Sciences Department University of WaterlooWaterlooONCanada

During fluid injection into a multilayered reservoir,a different pressure gradient is generated across the face of each permeable *** pressure gradient generates driving forces in the wellbore during well shut-in that causes the injected fluid moves from higher pressure layers to lower pressure layers,a phenomenon known as interwell ***-flow behavior depends on the initial pressure in the permeable layers and may be referred to as natural cross-flow(identical or natural initial pressures)and forced cross-flow(different initial pressures because of exploitation).Cross-flow may induce sand production and liquefaction in the higher pressure layers as well as formation damage,filter cake build-up and permeability reduction in the lower pressure ***,understanding cross-flow during well shut-in is important from a production and reservoir engineering perspective,particularly in unconsolidated or poorly consolidated sandstone *** and forced cross-flow is modeled for some injection wells in an oil reservoir located at North *** solution uses a transient implicit finite difference approach for multiple sand layers with different permeabilities separated by impermeable shale *** and forced cross-flow rates for each reservoir layer during shut-in are calculated and compared with different production logging tool(PLT)*** appears that forced cross-flow is usually more prolonged and subject to a higher flow rate when compared with natural cross-flow,and is thus worthy of more detailed analysis.

关键词： Cross-flow Multilayered Sandstone reservoir Sand production Skin factor

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Single-cell pan-omics, environmental neurology, and artificial intelligence:the time for holistic brain health research

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Neural Regeneration Research 2025年第6期20卷 1703-1704页

作者： Paolo Abondio francesco Bruno IRCCS Istituto delle Scienze Neurologiche di Bologna BolognaItaly Association for Neurogenetic Research(ARN) Lamezia TermeCatanzaroItaly

The brain,with its trillions of neural connections,different cellular types,and molecular complexities,presents a formidable challenge for researchers aiming to comprehend the multifaceted nature of neural *** traditional methods have provided valuable insights,emerging technologies offer unprecedented opportunities to delve deeper into the underpinnings of brain *** the everevolving landscape of neuroscience,the quest to unravel the mysteries of the human brain is bound to take a leap forward thanks to new technological improvements and bold interpretative frameworks.

关键词： function artificial landscape

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Mechanisms behind elevated serum levels of plasminogen activator inhibitor-1 in frontotemporal lobar degeneration

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Neural Regeneration Research 2025年第8期20卷 2317-2318页

作者： francesco Angelucci Jakub Hort Memory Clinic Department of NeurologySecond Faculty of MedicineCharles University and Motol University HospitalPragueCzech Republic International Clinical Research Centre St.Anne’s University HospitalBrnoCzech Republic

Frontotemporal lobar degeneration(FTLD)is a form of progressive dementia characterized by degeneration of the frontal and temporal lobes of the *** pathology involves a series of cognitive,behavioral,and neurological ... 详细信息

关键词： degeneration elevated pathology

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Does mesenchymal stem cell’s secretome affect spinal sensory circuits?Implication for pain therapies

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Neural Regeneration Research 2025年第1期20卷 181-183页

作者： francesco Ferrini Esri H.Juárez Adalberto Merighi Department of Veterinary Sciences University of TurinGrugliascoTOItaly Department of Psychiatry and Neuroscience UniversitéLavalQuébec CityQCCanada

Mesenchymal stem cells(MSCs)are multipotent adult stem cells of mesodermal origin that can be isolated from various tissues,including bone marrow,tooth pulp,adipose tissue,and umbilical *** have gained significant attention in regenerative medicine due to their ability to modulate the immune system and favor tissue *** enrich the medium in which they are cultivated with a broad range of bioactive molecules,including growth factors,cytokines,chemokines,enzymes,nucleic acids,and extracellular vesicles that collectively compose the MSC *** increasing number of pre-clinical studies suggest that delivering in vivo an MSC-conditioned medium(i.e.,the medium collected from MSC cultures after at least 3 days of exposure)exerts neuroprotective and anti-inflammatory effects in a variety of neurological conditions.

关键词： protective clinical collective

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Multifaceted superoxide dismutase 1 expression in amyotrophic lateral sclerosis patients:a rare occurrence?

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Neural Regeneration Research 2025年第1期20卷 130-138页

作者： Ilaria Martinelli Jessica Mandrioli Andrea Ghezzi Elisabetta Zucchi Giulia Gianferrari Cecilia Simonini francesco Cavallieri Franco Valzania Department of Neurosciences Azienda Ospedaliero Universitaria di ModenaModenaItaly Clinical and Experimental Medicine Ph.D.Program University of Modena and Reggio EmiliaModenaItaly Department of Biomedical Metabolic and Neural SciencesUniversity of Modena and Reggio EmiliaModenaItaly Neurology Unit Neuromotor&Rehabilitation DepartmentAzienda USL-IRCCS di Reggio EmiliaReggio EmiliaItaly

Amyotrophic lateral sclerosis(ALS)is a neuromuscular condition resulting from the progressive degeneration of motor neurons in the cortex,brainstem,and spinal *** the typical clinical phenotype of ALS involves both upper and lower motor neurons,human and animal studies over the years have highlighted the potential spread to other motor and non-motor regions,expanding the phenotype of *** superoxide dismutase 1(SOD1)mutations represent a minority of ALS cases,the SOD1 gene remains a milestone in ALS research as it represents the first genetic target for personalized *** numerous single case reports or case series exhibiting extramotor symptoms in patients with ALS mutations in SOD1(SOD1-ALS),no studies have comprehensively explored the full spectrum of extramotor neurological manifestations in this *** this narrative review,we analyze and discuss the available literature on extrapyramidal and non-motor features during *** multifaceted expression of SOD1 could deepen our understanding of the pathogenic mechanisms,pointing towards a multidisciplinary approach for affected patients in light of new therapeutic strategies for SOD1-ALS.

关键词： amyotrophic lateral sclerosis(ALS) autonomic extramotor genotype-phenotype multisystem involvement Parkinson’s disease sensory SOD1 superoxide dismutase 1 urinary vocal cord palsy

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Magnetron sputtered nickel oxide with suppressed interfacial defect states for efficient inverted perovskite solar cells

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Journal of Energy Chemistry 2025年第1期100卷 348-355页

作者： Guoqiang Ma Qin Tan Zhaoning Li Jingwei Xiu Jiafeng Wang Tianle Cheng Dong He Qiang Sun Xuhang Ma francesco Lamberti Zhubing He Department of Materials Science and Engineering Institute of Innovative Materials (I2M) Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG)Southern University of Science and Technology (SUSTech) Core Research Facilities Southern University of Science and Technology Department of Chemical Sciences Department of Industrial Engineering University of Padova

Widely used spin-coated nickle oxide （NiOx） based perovskite solar cells often suffer from severe interfacial reactions between the NiOxand adjacent perovskite layers due to surface defect states,which inherently impair device performance in a long-term view,even with surface molecule *** this study,we developed high-quality magnetron-sputtered NiOxthin films through detailed process optimization,and compared systematically sputtered and spin-coated NiOxthin film surfaces from materials to *** sputtered NiOxfilms exhibit improved crystallinity,smoother surfaces,and significantly reduced Ni3+or Ni vacancies compared to their spin-coated ***,the interface between the perovskite and sputtered NiOxfilm shows a substantially reduced density of defect *** solar cells （PSCs） fabricated with our optimally sputtered NiOxfilms achieved a high power conversion efficiency （PCE） of up to 19.93%and demonstrated enhanced stability,maintaining 86.2% efficiency during 500 h of maximum power point tracking under one standard sun ***,with the surface modification using (4-(2,7-dibromo-9,9-dimethylacridin-10（9H）-yl)butyl)p hosphonic acid （DMAcPA）,the device PCE was further promoted to 23.07%,which is the highest value reported for sputtered NiOxbased PSCs so far.

关键词： Perovskite

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A new three-dimensional finite-volume non-hydrostatic shock-capturing model for free surface flow

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Journal of Hydrodynamics 2017年第4期29卷 552-566页

作者： francesco Gallerano Giovanni Cannata francesco Lasaponara Chiara Petrelli Department of Civil Constructional and Environmental Engineering Sapienza University of Rome

In this paper a new finite-volume non-hydrostatic and shock-capturing three-dimensional model for the simulation of wave-structure interaction and hydrodynamic phenomena（wave refraction, diffraction, shoaling and breaking） is proposed. The model is based on an integral formulation of the Navier-Stokes equations which are solved on a time dependent coordinate system： a coordinate transformation maps the varying coordinates in the physical domain to a uniform transformed space. The equations of motion are discretized by means of a finite-volume shock-capturing numerical procedure based on high order WENO reconstructions. The solution procedure for the equations of motion uses a third order accurate Runge-Kutta（SSPRK） fractional-step method and applies a pressure corrector formulation in order to obtain a divergence-free velocity field at each stage. The proposed model is validated against several benchmark test cases.

关键词： Three-dimensional simulation non-hydrostatic wave-structure interaction flow-structure interaction shock-capturing

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Light emitting devices based on Si nanoclusters:the integration with a photonic crystal and electroluminescence properties

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Optoelectronics Letters 2007年第5期3卷 321-325页

作者： Alessia Irrera Fabio Iacona Giorgia Franzò Andrea Canino Delfo sanfilippo Gianfranco Di Stefano Angelo Piana Pier Giorgio Fallica francesco Priolo MATIS CNR-INFM and Dipartimento di Fisica e Astronomia Università di Catania via Santa Sofia 64 95123 CataniaItaly CNR-IMM Sezione di Catania stradale Primosole 50 95121 Catania Italy. STMicroelectronics MLD R&Dstradale Primosole 5095121 Catania Italy.

We present the properties and potentialities of light emitting devices based on amorphous Si nanoclusters. Amorphousnanostructures may constitute an interesting alternative to Si nanocrystals for the monolithic integration of optical andelectrical functions in Si technology. In fact, they exhibit an intense room temperature electroluminescence (EL). The ELproperties of these devices have been studied as a function of current and of temperature. Moreover, to improve theextraction efficiency of the light, we have integrated the emitting system with a 2D photonic crystal structure opportunelyfabricated by using conventional optical lithography to reduce the total internal reflection of the emitted light. The extractionefficiency in such devices increases by a factor of 4 at a resonance wavelength.

关键词：发光装置纳米聚类光子晶体集成电路

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Automated classification of civil structure defects based on convolutional neural network

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Frontiers of Structural and Civil Engineering 2021年第2期15卷 305-317页

作者： Pierclaudio SAVINO francesco TONDOLO Department of Structural Geotechnical and building EngineeringPolitecnico di TorinoTorino10129Italy

Today,the most commonly used civil infrastructure inspection method is based on a visual assessment conducted by certified inspectors following prescribed ***,the increase in aggressive environmental and load conditions,coupled with the achievement of many structures of the life-cycle end,has highlighted the need to automate damage identification and satisfy the number of structures that need to be *** overcome this challenge,this paper presents a method for automating concrete damage classification using a deep convolutional neural *** convolutional neural network was designed after an experimental investigation of a wide number of pretrained networks,applying the transfer-learning *** and validation were conducted using a database built with 1352 images balanced between“undamaged”,“cracked”,and“delaminated”concrete *** increase the network robustness compared to images in real-world situations,different image configurations have been collected from the Internet and on-field bridge *** GoogLeNet model,with the highest validation accuracy of approximately 94%,was selected as the most suitable network for concrete damage *** results confirm that the proposed model can correctly classify images from real concrete surfaces of bridges,tunnels,and pavement,resulting in an effective alternative to the current visual inspection techniques.

关键词： concrete structure infrastructures visual inspection convolutional neural network artificial intelligence

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Metamaterials and plasmonics: From nanoparticles to nanoantenna arrays, metasurfaces, and metamaterials

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Chinese Physics B 2014年第4期23卷 64-75页

作者： francesco Monticone Andrea Alù Department of Electrical and Computer Engineering The University of Texas at Austin 1 University Station C0803Austin Texas 78712 USA

The rise of plasmonic metamaterials in recent years has unveiled the possibility of revolutionizing the entire field of optics and photonics, challenging well-established technological limitations and paving the way to innovations at an unprecedented level To capitalize the disruptive potential of this rising field of science and technology, it is important to be able to combine the richness of optical phenomena enabled by nanoplasmonics in order to realize metamaterial components, devices, and systems of increasing complexity. Here, we review a few recent research directions in the field of plasmonic metamaterials, which may foster further advancements in this research area. We will discuss the anomalous scattering features enabled by plasmonic nanoparticles and nanoclusters, and show how they may represent the fundamental building blocks of complex nanophotonic architectures. Building on these concepts, advanced components can be designed and operated, such as optical nanoantennas and nanoantenna arrays, which, in turn, may be at the basis of metasurface devices and complex systems. Following this path, from basic phenomena to advanced functionalities, the field of plasmonic metamaterials offers the promise of an important scientific and technological impact, with applications spanning from medical diagnostics to clean energy and information processing.

关键词： plasmonics metamaterials nanoparticles scattering

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