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Influence of metal support in-plane symmetry on the corrugation of hexagonal boron nitride and graphene monolayers

Nano Research 2018年第9期11卷 4643-4653页

作者： antonio d. Martinez-Galera jose M. Gomez-Rodriguez Departamento de Fisica de la Matefia Condensada Universidad Autonoma de Madrid Madrid E-28049 Spain Condensed Matter Physics Center (IFIMAC) UniversidadAutdnoma de Madrid Madrid E-28049 Spain Instituto Nicolds Cabrera Universidad Autonoma de Madrid Madrid E-28049 Spain

Predicting the properties of two-dimensional （2D） materials as graphene and hexagonal boron nitride （h-BN） monolayers after their growth on any given substrate is a major challenge. While the influence of the electron configuration of the atoms of the underlying surface is well-understood, the effect of substrate geometry still remains unclear. The structural properties of h-BN monolayers grown on a rectangularly packed Rh（110） surface were characterized in situ by ultrahigh vacuum scanning tunneling microscopy and were compared to those that this material exhibits when grown on substrates showing different crystallographic orientations. Although the h-BN monolayer grown on Rh（110） was dominated by a unique quasiunidimensional moir6 pattern, suggesting considerable interface interaction, the moir6 corrugation was unexpectedly smaller than those reported for strongly interacting interfaces with hexagonal-terminated substrates, owing to differences in the possible binding landscapes at interfaces with differently oriented substrates. Moreover, a rule was derived for predicting how interface corrugation and the existence and extent of subregions within moir6 supercells containing favorable sites for orbital mixing between h-BN monolayers and their supports depend on substrate symmetry. These general symmetry considerations can be applied to numerous 2D materials, including graphene, thereby enabling the prediction of how substrate choice determines the properties of these materials. Furthermore, they could also provide new routes for tuning 2D material properties and for developing nanotemplates showing different geometries for Krowing adsorbate superlattices.

关键词： hexagonal boron nitride graphene two-dimensional materials scanning tunneling microscopy moire superstructures nanotemplates

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Creativity and innovation:A contribution of behavioral economics

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International Journal of Innovation Studies 2019年第1期3卷 12-21页

作者： jose Chavaglia Neto jose antonio Filipe antonio Bento Caleiro Fundacao Getulio Vargas(EESP-FGV) Itapeva StreetSao Paulo01332-000Brazil Instituto Universitario de Lisboa(ISCTE-IUL) Information SciencesTechnologies and Architecture Research Center(ISTAR-IUL)Business Research Unit-IUL(BRU-IUL)Lisbon1649-026Portugal Departamento de Economia Universidade de EvoraLargo Dos Colegiais2Evora7002-554Portugal

Innovation in products and services is seen by scholars,by specialized media in management,and by some managers as the main currency in modern *** is because it allows high average market profits,fame for innovators,or brand growth,for ***,in practice,most managers still treat innovation as a secondary issue on their *** problem results from the inability of market professionals to analyze people inside and outside their *** is not possible to develop innovative products in a systematic way without treating this point ***,in this process,creativity is a necessary,but not necessarily sufficient,condition to be fulfilled and requires behavioral *** this context,it is believed that behavioral economics can make a sufficient contribution in the form of an analytical marketing tool by offering an analysis closer to human beings'reality,and,thus,allow a better understanding of people's behavior in the process of innovation in the market.

关键词： Behavioral economics Neuroeconomics Innovation Creativity

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Random Batch Particle Methods for the Homogeneous Landau Equation

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Communications in Computational Physics 2022年第4期31卷 997-1019页

作者： jose antonio Carrillo Shi Jin Yijia Tang Mathematical Institute University of OxfordOxfordOX26GGUK School of Mathematical Sciences Institute of Natural SciencesMOE-LSCShanghai Jiao Tong UniversityShanghai200240P.R.China School of Mathematical Sciences Shanghai Jiao Tong UniversityShanghai200240P.R.China.

We consider in this paper randombatch particlemethods for efficiently solving the homogeneous Landau equation in plasma *** methods are stochastic variations of the particle methods proposed by Carrillo et al.[***.:X 7:100066,2020]using the random batch *** collisions only take place inside the small but randomly selected batches so that the computational cost is reduced to O(N)per time ***,our methods can preserve the conservation of mass,momentum,energy and the decay of *** numerical examples are performed to validate our methods.

关键词： Homogeneous Landau equation random batch particle method Coulomb collision

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Probing the nature of the contact between fine particles by using ultrasound propagation

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Particuology 2011年第6期9卷 659-662页

作者： antonio Castellanos Xiaoping Jia Carlos Soria-Hoyo jose Manuel Valverde Faculty of Physics University of Seville Avda. Reina Mercedes s/n 41012 Seville Spain LPMDI Universite de Marne-la-Vallee CNRS UMR 8108 Champs sur Marne France

The propagation velocity （Vs） of an ultrasonic signal through a granular material depends on the type of interparticle contact. For noncohesive glass beads, a power law behavior Vs α σc1/6 for consolidation stresses applied （σc） above 1 MPa has been measured in previous work. This equation is compatible with Hertz＇s interaction law between elastic solids. In the present work, we have tested the propagation velocity of ultrasound signals through a sample of fine powder. The tensile strength and compactivity of the powder were previously measured by means of the Seville powder tester （SPT）, indicating plastic deformation of the surface asperities in contact for small to moderate consolidation stresses. However, the measurements of ultrasound propagation at high consolidations presented here are compatible with Hertz＇s law. This finding suggests that for high consolidation stresses, surface asperities are flattened, and it is therefore the elastic deformation of the bulk of the particles that determines the transmission of ultrasonic pulses.

关键词： JFine cohesive powder Ultrasound propagation Interparticle contact

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Liquid biopsy approach to pancreatic cancer

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World Journal of Gastrointestinal Oncology 2021年第10期13卷 1263-1287页

作者： Sonia Perales Carolina Torres Cristina Jimenez-luna jose Prados Joaquina Martinez-Galan jose Manuel Sanchez-Manas Octavio Caba Department of Biochemistry and Molecular Biology I Faculty of SciencesUniversity of GranadaGranada 18071Spain Department of Biochemistry and Molecular Biology III and Immunology Faculty of SciencesUniversity of GranadaGranada 18071Spain Institute of Biopathology and Regenerative Medicine(IBIMER) Center of Biomedical Research(CIBM)University of GranadaGranada 18100Spain Department of Medical Oncology Hospital Universitario Virgen de las NievesGranada 18011Spain School for International Postgraduate Studies University of GranadaGranada 18071Spain

Pancreatic cancer(PC)continues to pose a major clinical *** has been little improvement in patient survival over the past few decades,and it is projected to become the second leading cause of cancer mortality by *** dismal 5-year survival rate of less than 10%after the diagnosis is attributable to the lack of early symptoms,the absence of specific biomarkers for an early diagnosis,and the inadequacy of available *** patients are diagnosed when the disease has already metastasized and cannot be *** interception is vital,actively intervening in the malignization process before the development of a full-blown advanced *** early diagnosis of PC has a dramatic impact on the survival of patients,and improved techniques are urgently needed to detect and evaluate this disease at an early *** is difficult to obtain tissue biopsies from the pancreas due to its anatomical position;however,liquid biopsies are readily available and can provide useful information for the diagnosis,prognosis,stratification,and follow-up of patients with PC and for the design of individually tailored *** aim of this review was to provide an update of the latest advances in knowledge on the application of carbohydrates,proteins,cell-free nucleic acids,circulating tumor cells,metabo-lome compounds,exosomes,and platelets in blood as potential biomarkers for PC,focusing on their clinical relevance and potential for improving patient outcomes.

关键词： Pancreatic cancer Biomarkers Liquid biopsy Clinical management Cancer interception Cancer monitoring

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TinyML-Based Fall Detection for Connected Personal Mobility Vehicles

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Computers, Materials & Continua 2022年第5期71卷 3869-3885页

作者： Ramon Sanchez-Iborra Luis Bernal-Escobedo jose Santa antonio Skarmeta University Center of Defense General Air Force AcademySan Javier30720Spain University of Murcia Murcia30100Spain Technical University of Cartagena Cartagena30202Spain

A new wave of electric vehicles for personal mobility is currently crowding public *** offer a sustainable and efficient way of getting around in urban environments,however,these devices bring additional safety issues,including serious accidents for ***,taking advantage of a connected personal mobility vehicle,we present a novel on-device Machine Learning(ML)-based fall detection system that analyzes data captured from a range of sensors integrated on an on-board unit(OBU)*** the typical processing limitations of these elements,we exploit the potential of the TinyML paradigm,which enables embedding powerful ML algorithms in constrained *** have generated and publicly released a large dataset,including real riding measurements and realistically simulated falling events,which has been employed to produce different TinyML *** attained results show the good operation of the system to detect falls efficiently using embedded *** considered algorithms have been successfully tested on mass-market low-power units,implying reduced energy consumption,flash footprints and running times,enabling new possibilities for this kind of vehicles.

关键词： Personal mobility machine learning on-board unit C-ITS IoT

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On the Structure of Graded Leibniz Algebras

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Algebra Colloquium 2015年第1期22卷 83-96页

作者： antonio J. Calderon Martin jose M. Sfinchez Delgado Departamento de Matemdticas Universidad de Cadiz 11510 Puerto Real Cadiz Spain

We study the structure of graded Leibniz algebras with arbitrary dimension and over an arbitrary base field K. We show that any of such algebras ￡ with a symmetric G-support is of the form ￡ = U-∑jIj with U a subspace of ￡1, the homogeneous component associated to the unit element 1 in G, and any Ij a well described graded ideal of ￡, satisfying [Ij, Ik]= 0 if j≠ k. In the case of ￡ being of maximal length, we characterize the gr-simplicity of the algebra in terms of connections in the support of the grading.

关键词： graded Leibniz algebra infinite dimensional Leibniz algebra structure theory

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Monotonic, cyclic and post-cyclic performances of single-helix anchor in residual soil of sandstone

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Journal of Rock Mechanics and Geotechnical Engineering 2019年第4期11卷 824-836页

作者： jose antonio Schiavon Cristina de Hollanda Cavalcanti Tsuha Luc Thorel Department of Geotechnical Engineering Aeronautics Institute of TechnologySao Jose dos CamposBrazil Department of Geotechnical Engineering University of Sao PauloSao CarlosBrazil IFSTTAR GERS DepartmentGeomaterials & Models in Geotechnics LaboratoryBouguenaisFrance

Helical anchors are commonly used in Brazil for guyed transmission towers subjected to static and cyclic wind *** most cases,these anchors are installed in tropical residual soil,a micro-structured material in which the shear strength is provided by soil *** installation of a helical anchor,as the helical plate moves downward into the ground,the soil penetrated is sheared and ***,in this type of soil,anchor installation affects the soil shear strength significantly associated with a bonded ***,the cyclic responses of helical anchors in this type of structured soils are rarely *** address this problem,tests were conducted in a Brazilian residual soil to investigate the monotonic,cyclic and post-cyclic performances of single-helix *** tests used two instrumented single-helix anchors installed in this typical residual soil of sandstone,which is frequently observed in large areas in the southern *** testing results indicate that the disturbance caused by the anchor installation affected the monotonic uplift performance *** results of cyclic loading tests also show no significant degradation of helix bearing resistance and reduced displacement accumulation with increasing load *** is perhaps due to the soil improvement caused by previous loading,which then increases the stiffness response of the anchor.

关键词： Helical anchors Tropical residual soil Cyclic loading Field load tests

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Water-Based Processing of Fiberboard of Acrylic Resin Composites Reinforced With Cellulose Wood Pulp and Cellulose Nanofibrils

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Journal of Renewable Materials 2019年第5期7卷 403-413页

作者： Emanoele Maria Santos Chiromito Eliane Trovatti antonio jose Felix Carvalho Department of Materials Engineering São Carlos School of EngineeringUniversity of São PauloAv.João Dagnone110013563-120São Carlos-SP-Brazil University of Araraquara-UNIARA R.Carlos Gomes1217CEP 14801-320AraraquaraSPBrazil

Despite the great potential of cellulose wood pulp and cellulose nanofibrils as reinforcing filler in thermoplastics,its use is limited due to its tendency to form agglomerates and due to its high hydrophilic *** we describe fiberboard composites with high contents of wood pulp or cellulose nanofibrils,and a resin of poly(styrene-methyl-methacrylate-acrylic acid)used as water-based *** wood pulp and cellulose nanofibrils were used directly in the form of water *** method is based on the flocculation of the polymer emulsion followed by agglomeration of a mixture of the polymer emulsion and cellulose suspension,leading to the co-precipitation of the composite material,which can be easily separated from the water *** with acrylic polymer/cellulose fibers in the proportions of 75:25,50:50 and 25:75 wt%were *** were characterized by scanning electron microscopy(SEM),Fourier transform infrared spectroscopy(FTIR),thermogravimetric analysis(TGA),dynamic mechanical analysis(DMA)and water absorption *** analysis revealed a very good dispersion of the fibers without evidence of agglomeration,which led to superior mechanical *** results showed the effectiveness of the methodology and the potential of cellulose wood pulp and CNF as reinforcement fillers in fiberboard composites and any other high fiber-content materials.

关键词： Cellulose wood pulp cellulose nanofibrils composites acrylic resin emulsion fiberboard

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Multi-camera systems for rehabilitation therapies:a study of the precision of Microsoft Kinect sensors

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Frontiers of Information Technology & Electronic Engineering 2016年第4期17卷 348-364页

作者： Miguel OLIVER Francisco MONTERO jose Pascual MOLINA Pascual GONZALEZ antonio FERNANDEZ-CABALLERO Instituto de Investigacidn en Informdtica de Albacete Universidad de Castilla-La ManchaAlbacete 02071Spain Departamento de Sistemas Informaticos Universidad de Castilla-La ManchaAlbacete 02071Spain

This paper seeks to determine how the overlap of several infrared beams affects the tracked position of the user, depending on the angle of incidence of light, distance to the target, distance between sensors, and the number of capture devices used. We also try to show that under ideal conditions using several Kinect sensors increases the precision of the data collected. The results obtained can be used in the design of telerehabilitation environments in which several RGB-D cameras are needed to improve precision or increase the tracking range. A numerical analysis of the results is included and comparisons are made with the results of other studies. Finally, we describe a system that implements intelligent methods for the rehabilitation of patients based on the results of the tests carried out.

关键词： Kinect sensor Rehabilitation system Capture precision Multi-camera system

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