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今日电子 2008年第4期 39-40页

作者： stefano j.zammattio Altera公司

本文介绍利用FPGA在一块印制板上实现多标准工业以太网功能,包括FPGA的优点以及建立通用且易于维护的解决方案的开发流程、工具和技术。

关键词：工业以太网 FPGA 印制板

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FPGA在电机控制系统设计中的应用

世界电子元器件 2013年第8期 36-42页

作者： Kevin Smith Wil Florentino jason Chiang stefano j.zammattio Altera公司

在工业能牦中，三分之二：以上的能耗来自工业电机驱动没备，因此，在工厂费用开支中，高效的电气特性是非常重要的因素。在电机驱动系统中采用速率可变驱动器（VSD）来替代传统的驱动器能够显著提高效率。

关键词：电机驱动系统控制系统设计 FPGA 应用电气特性驱动器工业

A quantitative analysis of the US materials flow methodology and comparison to the EU methodology for MSW statistics

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Waste Disposal and Sustainable Energy 2024年第1期6卷 85-94页

作者： Demetra Tsiamis Fabio Poretti stefano Consonni Marco j.Castaldi Earth Engineering Center Department of Chemical EngineeringThe City College of New YorkNew YorkNYUSA Dipartimento Di Energetica Politecnico Di MilanoPiazza Leonardo da Vinci 3220133MilanItaly

The European Union(EU)and the United States(US)determine municipal solid waste(MSW)statistics *** EU applies a site-specific methodology that directly measures waste whereas the US employs a materials flow methodology that estimates MSW statistics indirectly based on production and recovery data from *** study dissects the materials flow methodology and presents quantitative materials flow Sankey diagrams for the primary MSW materials to highlight data gaps that can be addressed to improve the methodology’s *** industry plastics data were applied to the materials flow methodology,and the results were within 10%of the plastics statistics reported by the US Environmental Protection Agency(US EPA).Drawbacks to the methodologies include EU measurement inaccuracies due to double-counting and not accounting for residual waste in the *** latter may partially explain why landfilling tonnages reported by the US EPA were approximately 60%less than the tonnages reported by the Waste to Energy Research and Technology Council(WTERT)in its national MSW survey that applied the EU methodology in the *** the EU,there is no US national policy that requires states to measure and report state-level waste data to the US *** improvements in US MSW statistics rely heavily on the implementation of national policies to homogenize the measurement and collection of waste data from states.

关键词： Materials flow methodology Site-specific methodology United States European Union Municipal solid waste Discrepancy

Optimized generation of entanglement based on the f-STIRAP technique

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Communications in Theoretical Physics 2024年第7期76卷 39-45页

作者： Dongni Chen jiahui Li stefano Chesi Ying-Dan Wang Department of Physics Korea University School of Quantum Information Future Technology Henan University Beijing Computational Science Research Center Department of Physics Beijing Normal University CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Physical Sciences University of Chinese Academy of Sciences

We consider generating maximally entangled states(Bell states) between two qubits coupled to a common bosonic mode, based on f-STIRAP. Utilizing the systematic approach developed by Wang et al(2017 New j. Phys. 19 093016), we quantify the effects of non-adiabatic leakage and system dissipation on the entanglement generation, and optimize the entanglement by balancing non-adiabatic leakage and system dissipation. We find the analytical expressions of the optimal coupling profile, the operation time, and the maximal entanglement. Our findings have broad applications in quantum state engineering, especially in solid-state devices where dissipative effects cannot be neglected.

关键词： entanglement optimization f-STIRAP perturbation theory

3D aerogels from hybrid 2D materials:ultralight and flexible superinsulators

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National Science Review 2023年第10期10卷 8-9页

作者： stefano Ippolito Yury Gogotsi A.j.Drexel Nanomaterials Institute and Department of Materials Science & Engineering Drexel University

Advances in research and technology to boost human space exploration proceed at a brisk pace,although a major obstacle remains:the cold and empty outer *** we capitalize on the unique properties of specific materials and structures to address this problem?Considered among the best insulating materials available,aerogels have become prime candidates in this field owing to their ultralight weight,large surface area,

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Two-Layer High-Throughput:Effective Mass Calculations Including Warping

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Engineering 2022年第3期8卷 74-80页

作者： Andrew Supka Nicholas A.Mecholsky Marco Buongiorno Nardelli stefano Curtarolo Marco Fornari Department of Physics&Science of Advanced Materials Program Central Michigan UniversityMount PleasantMI 48859USA Department of Physics&Vitreous State Laboratory The Catholic University of AmericaWashingtonDC 20064USA Department of Physics&Department of Chemistry University of North TexasDentonTX 76203USA Center for Autonomous Materials Design Duke UniversityDurhamNC 27708USA Department of Mechanical Engineering and Materials Science Duke UniversityDurhamNC 27708USA

In this paper,we perform two-layer high-throughput *** the first layer,which involves changing the crystal structure and/or chemical composition,we analyze selected Ⅲ-Ⅴ semiconductors,filled and unfilled skutterudites,as well as rock salt and layered *** second layer searches the full Brillouin zone(BZ)for critical points within 1.5 eV(1 eV=1.602176×10^(-19)j)of the Fermi level and characterizes those points by computing the effective *** introduce several methods to compute the effective masses from first principles and compare them to each *** approach also includes the calculation of the density-of-states effective masses for warped critical points,where traditional approaches fail to give consistent results due to an underlying non-analytic behavior of the critical *** demonstrate the need to consider the band structure in its full complexity and the value of complementary approaches to compute the effective *** also provide computational evidence that warping occurs only in the presence of degeneracies.

关键词： High-throughput Electronic structure Band warping Effective mass

Photonics of time-varying media

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Advanced Photonics 2022年第1期4卷 30-61页

作者： Emanuele Galiffi Romain Tirole Shixiong Yin Huanan Li stefano Vezzoli Paloma A.Huidobro Mário G.Silveirinha Riccardo Sapienza Andrea Alù j.B.Pendry City University of New York Photonics InitiativeAdvanced Science Research CenterNew YorkUnited States Imperial College London Blackett LaboratoryDepartment of PhysicsLondonUnited Kingdom Nankai University School of PhysicsTianjinChina Instituto de Telecomunicações Instituto Superior Técnico-University of LisbonLisboaPortugal City University of New York Physics ProgramGraduate CenterNew YorkUnited States

Time-varying media have recently emerged as a new paradigm for wave manipulation,due to the synergy between the discovery of highly nonlinear materials,such as epsilon-near-zero materials,and the quest for wave applications,such as magnet-free nonreciprocity,multimode light shaping,and ultrafast *** this review,we provide a comprehensive discussion of the recent progress achieved with photonic metamaterials whose properties stem from their modulation in *** review the basic concepts underpinning temporal switching and its relation with spatial scattering and deploy the resulting insight to review photonic time-crystals and their emergent research avenues,such as topological and non-Hermitian *** then extend our discussion to account for spatiotemporal modulation and its applications to nonreciprocity,synthetic motion,giant anisotropy,amplification,and many other ***,we conclude with a review of the most attractive experimental avenues recently demonstrated and provide a few perspectives on emerging trends for future implementations of time-modulation in photonics.

关键词： time-varying media temporal modulation metamaterials switching optics photonics light

There is life after coking for Ir nanocatalyst superlattices

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Nano Research 2022年第8期15卷 6969-6976页

作者： Antonio j.Martínez-Galera Haojie Guo Mariano D.jiménez-Sánchez stefano Franchi Kevin C.Prince josé M.Gómez-Rodríguez Departamento de Física de la Materia Condensada Universidad Autónoma de MadridMadrid E-28049Spain Instituto Nicolás Cabrera Universidad Autónoma de MadridMadrid E-28049Spain Elettra-Sincrotrone Trieste S.C.p.A. in Area Science ParkBasovizza(Trieste)34149Italy Condensed Matter Physics Center(IFIMAC) Universidad Autónoma de MadridMadrid E-28049Spain

Achieving superior performance of nanoparticle systems is one of the biggest challenges in *** major phenomena,occurring during the reactions,hinder the development of the full potential of nanoparticle catalysts:sintering and contamination with carbon containing species,sometimes called ***,we demonstrate that Ir nanocrystals,arranged into periodic networks on hexagonal boron nitride(h-BN)supports,can be restored without sintering after contamination by persistent *** restoration yields the complete removal of carbon from the nanocrystals,which keep their crystalline structure,allowing operation without *** findings,together with the possibility of fine tuning the nanocrystals size,confer this nanoparticle system a great potential as a testbed to extract key information about catalysis-mediated oxidation *** the case of the CO oxidation by O2,reaction of interest in environmental science and green energy production,the existence of chemical processes not observed before in other nanoparticle systems is demonstrated.

关键词： catalysis coke nanoparticles scanning tunneling microscopy(STM) X-ray photoemission spectroscopy(XPS)

A rule-free workflow for the automated generation of databases from scientific literature

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npj Computational Materials 2023年第1期9卷 96-109页

作者： Luke P.j.Gilligan Matteo Cobelli Valentin Taufour stefano Sanvito School of Physics AMBER and CRANN InstituteTrinity CollegeDublin 2DublinIreland Department of Physics and Astronomy University of CaliforniaDavisCA 95616USA

In recent times,transformer networks have achieved state-of-the-art performance in a wide range of natural language processing *** we present a workflow based on the fine-tuning of BERT models for different downstream tasks,which results in the automated extraction of structured information from unstructured natural language in scientific *** to existing methods for the automated extraction of structured compound-property relations from similar sources,our workflow does not rely on the definition of intricate grammar ***,it can be adapted to a new task without requiring extensive implementation efforts and *** test our data-extraction workflow by automatically generating a database for Curie temperatures and one for band *** are then compared with manually curated datasets and with those obtained with a state-of-the-art rule-based ***,in order to showcase the practical utility of the automatically extracted data in a material-design workflow,we employ them to construct machine-learning models to predict Curie temperatures and band *** general,we find that,although more noisy,automatically extracted datasets can grow fast in volume and that such volume partially compensates for the inaccuracy in downstream tasks.

关键词： automated rule adapted

PDGFRαreporter activity identifies periosteal progenitor cells critical for bone formation and fracture repair

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Bone Research 2022年第1期10卷 122-136页

作者： jiajia Xu Yiyun Wang Zhu Li Ye Tian Zhao Li Amy Lu Ching-Yun Hsu stefano Negri Cammy Tang Robert j.Tower Carol Morris Aaron W.james Departments of Pathology Johns Hopkins UniversityBaltimoreMD 21205USA Departments of Orthopedics Johns Hopkins UniversityBaltimoreMD 21205USA Department of Oral and Maxillofacial Surgery School of StomatologyChina Medical UniversityShenyangLiaoningPR China

The outer coverings of the skeleton,which is also known as the periosteum,are arranged in concentric layers and act as a reservoir for tissue-specific bone *** cellular heterogeneity within this tissue depot is being increasingly ***,inducible PDGFRαreporter animals were found to mark a population of cells within the periosteum that act as a stem cell reservoir for periosteal appositional bone formation and fracture *** these processes,PDGFRαreporter^(+)progenitors give rise to Nestin+periosteal cells before becoming osteoblasts and *** diphtheria toxin-mediated ablation of PDGFRαreporter^(+)cells led to deficits in cortical bone formation during homeostasis and a diminutive hard callus during fracture *** ossicle transplantation,both mouse PDGFRαreporter^(+)periosteal cells and human Pdgfrα+periosteal progenitors expand,ossify,and recruit marrow to a greater extent than their counterpart periosteal cells,whereas PDGFRαreporter^(−)periosteal cells exhibit a predisposition to chondrogenesis in *** RNA sequencing identified enrichment of the secreted factors Fermt3 and Ptpn6 within PDGFRαreporter^(+)periosteal cells,which partly underlie the osteoblastogenic features of this cell population.

关键词： progenitor fracture reservoir