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Self-transforming stainless-steel into the next generation anode material for lithium ion batteries

Journal of Energy Chemistry 2022年第1期31卷 432-441,I0012页

作者： Nimrod Harpak Guy Davidi fernando Patolsky School of Chemistry Faculty of Exact SciencesTel Aviv UniversityTel Aviv 69978Israel Department of Materials Science and Engineering the Iby and Aladar Fleischman Faculty of EngineeringTel Aviv University.Tel Aviv 69978Israel

Here,an extremely cost-effective and simple method is proposed in order to morphologically selftransform stain less steel from a completely inactive material to a fully operati onal,nanowire-structured,3D anode material for lithium ion *** reagentless process of a single heating step of the plain stainless steel in a partially reduci ng atmosphere,converts the stain less steel into an active anode via metal-selective oxidation,creating vast spinel-structured nanowires directly from the electrochemically in active *** simple process allows the complete utilizati on of the 3D mesh structure as the electrochemically-active spinel nanowires greatly enhance the active surface *** novel material and architecture exhibits high capacities(-1000 mAh/g after-400 cycles),long cycle life(>1100 cycles)and fast rate performance(>2C).Simple modulation of the substrate can result in very high areal and volumetric ***,areal capacities greater than 10 mAh/cm^(2) and volumetric capacities greater than 1400 mAh/cm^(3) can be *** the proposed method,the potential reduction in cost from the use of battery-grade graphite is at least an order of magnitude,with considerable better results achieved in terms of capacity and intrinsic structural benefits of the substrate,which include direct contact of the active material with the current collector,lack of delamination and binder-free *** work provides a new paradigm and a key step in the long route to replace the commercial graphite anode as the next-geneation anode material.

关键词： Stainless steel Anode material Transition metal oxide Energy storage MnCr_(2)O_(4) Lithium ion batteries

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Dicroerisma (Actiniscales, Dinophyceae) in the open Pacific Ocean, a gymnodinioid dinoflagellate with an endoskeleton

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Chinese Journal of Oceanology and Limnology 2008年第1期26卷 116-120页

作者： fernando GóMEZ Station Marine de Wimereux Université des Sciences et Technologies de Lille-Lille1 FRE 2816 ELICO CNRS 28 Avenue Foch BP 80 F-62930 Wimereux France

This study is the first to describe and illustrate the dinoflagellate genus Dicroerisma in the open Pacific Sea and in the southern hemisphere. Eleven individuals ascribed to Dicroerisma psilonereiella were encountered in subsurface waters (>70 m depth) from 34°N to 33°S. Another specimen that differs from the type is also illustrated. These findings reveal that Dicroerisma is a widespread genus and that there is tentative existence of another species within the genus.

关键词： Dicroerisma psilonereiella Actiniscales axostyle endoskeleton Dinophyceae the Pacific Ocean

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E-Commerce Fraud Detection Based on Machine Learning Techniques:Systematic Literature Review

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Big Data Mining and Analytics 2024年第2期7卷 419-444页

作者： Abed Mutemi fernando Bacao NOVA Information Management School(NOVA IMS) Universidade Nova de LisboaCampus de CampolideLisboa 1070-312Portugal

The e-commerce industry’s rapid growth,accelerated by the COVID-19 pandemic,has led to an alarming increase in digital fraud and associated *** establish a healthy e-commerce ecosystem,robust cyber security and anti-fraud measures are ***,research on fraud detection systems has struggled to keep pace due to limited real-world *** in artificial intelligence,Machine Learning(ML),and cloud computing have revitalized research and applications in this *** ML and data mining techniques are popular in fraud detection,specific reviews focusing on their application in e-commerce platforms like eBay and Facebook are lacking *** reviews provide broad overviews but fail to grasp the intricacies of ML algorithms in the e-commerce *** bridge this gap,our study conducts a systematic literature review using the Preferred Reporting Items for Systematic reviews and Meta-Analysis(PRISMA)*** aim to explore the effectiveness of these techniques in fraud detection within digital marketplaces and the broader e-commerce *** the current state of the literature and emerging trends is crucial given the rising fraud incidents and associated *** our investigation,we identify research opportunities and provide insights to industry stakeholders on key ML and data mining techniques for combating e-commerce *** paper examines the research on these techniques as published in the past *** the PRISMA approach,we conducted a content analysis of 101 publications,identifying research gaps,recent techniques,and highlighting the increasing utilization of artificial neural networks in fraud detection within the industry.

关键词： E-commerce Machine Learning(ML) systematic review fraud detection organized retail fraud

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Performance Comparison of Field-oriented Control,Direct Torque Control,and Model-predictive Control for SynRMs

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Chinese Journal of Electrical Engineering 2022年第1期8卷 24-37页

作者： Hazem Hadla fernando Santos Polytechnic Institute of Viseu Higher School of Technology and Management of LamegoLamego 5100-074Portugal

Simulation studies of three synchronous reluctance motor(SynRM)control strategies are presented:field-oriented control(FOC),direct torque control(DTC),and finite-set model-predictive control(FS-MPC).FOC uses linear controllers and pulse-width modulation to control the fundamental components of the load voltages *** contrast,DTC and FS-MPC are nonlinear strategies wherein the voltage vectors are directly generated in the absence of a *** operating principles and control structures of these control strategies are ***,a comparative analysis of the static and dynamic performance of the control strategies is conducted using Matlab/Simulink to identify their advantages and *** is confirmed that each of the control strategies has merits and that all three of them satisfy the requirements of modern high-performance drives.

关键词： Field-oriented control direct torque control model-predictive control synchronous reluctance motor

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An ACO-RFD hybrid method to solve NP-complete problems

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Frontiers of Computer Science 2013年第5期7卷 729-744页

作者： Pablo RABANAL Ismael RODRIGUEZ fernando RUBIO Dept. Sistemas Inforrnaiticos y Computacion Facultad de Informatica Universidad Complutense de Madrid Madrid 28040 Spain

In this paper we hybridize ant colony optimiza- tion （ACt） and river formation dynamics （RFD）, two related swarm intelligence methods. In ACt, ants form paths （prob- lem solutions） by following each other＇s pheromone trails and reinforcing trails at best paths until eventually a single path is followed. On the other hand, RFD is based on copy- ing how drops form rivers by eroding the ground and de- positing sediments. In a rough sense, RFD can be seen as a gradient-oriented version of ACt. Several previous experi- ments have shown that the gradient orientation of RFD makes this method solve problems in a different way as ACt. In particular, RFD typically performs deeper searches, which in turn makes it find worse solutions than ACt in the first exe- cution steps in general, though RFD solutions surpass ACt solutions after some more time passes. In this paper we try to get the best features of both worlds by hybridizing RFD and ACt. We use a kind of ant-drop hybrid and consider both pheromone trails and altitudes in the environment. We apply the hybrid method, as well as ACt and RFD, to solve two NP-hard problems where ACt and RFD fit in a different manner： the traveling salesman problem （TSP） and the prob- lem of the minimum distances tree in a variable-cost graph （MDV）. We compare the results of each method and we an- alyze the advantages of using the hybrid approach in each case.

关键词： river formation dynamics ant colony optimization heuristic algorithms NP-hard problems

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How Africa Is Promoting Agricultural Innovations and Technologies amidst the COVID-19 Pandemic

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Molecular Plant 2020年第10期13卷 1345-1346页

作者： Angela Joseph fernando Consultant-The Alliance of Bioversity International and CIAT Km 17 Recta Cali-PalmiraApartado Aéreo 6713763537 CaliColombia

The COVID-19 pandemic has left an indelible mark on Africa's Agribusiness *** of households whose livelihoods depend on farming are facing a huge food *** mitigate these effects,the African Agricultural Technology Foundation(AATF)gathered a panel of renowned agricultural experts through an interactive webinar themed"Promotion of Agricultural Technologies and Innovations for Agri-Business Resilience in Africa in the Wake of COVID-19",the first in a series of several interactive seminars to be held virtually until the end of December *** seminars will focus on several topics specific to agricultural transformation,which revolve around smallholder farmers in Sub-Saharan Africa(SSA)and aim to help them come out of the cataclysmic effect of COVID-19 and recover their business and livelihoods.

关键词： Agricultural Africa interactive

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Glial-derived transforming growth factor β1(TGF-β1):a key factor in multiple sclerosis neuroinflammation

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Neural Regeneration Research 2021年第3期16卷 510-511页

作者： Coram Guevara fernando C.Ortiz Mechanisms of Myelin Formation and Repair Laboratory Instituto de Ciencias BiomédicasFacultad de Ciencias de la SaludUniversidad Autónoma de ChileSantiagoChile

Glial cell activation and neuroinflammation in multiple sclerosis(MS):MS is an irreversible and progressive central nervous system(CNS)disease which originates in the autoimmune attack of lymphocytes against CNS *** specialized membrane,synthesized by oligodendrocytes(OL)in the CNS,provides metabolic support to axons and allows for saltatory conduction in *** lack of myelin(i.e.,demyelination)leads to axonal degeneration,neuronal death,and the consequent neurological disabilities(Franklin and Ffrench-Constant,2017).

关键词： inflammation degeneration sclerosis

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Laparoscopic staging in hilar cholangiocarcinoma:Is it still justified?

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World Journal of Gastrointestinal Oncology 2013年第7期5卷 127-131页

作者： fernando Rotellar fernando Pardo HPB and Liver Transplant Unit Department of General and Abdominal SurgeryUniversity Clinic of NavarreUniversity of Navarre31008 PamplonaSpain

Radical resection remains the only potential curative therapy for hilar cholangiocarcinoma(HCCA).The aim of staging laparoscopic(SL) is to identify patients with previously undetected advanced disease who will not benefit from surgical palliation and therefore avoid unnecessary *** accuracy of non-invasive imaging techniques has significantly improved during the last *** a consequence,the diagnostic yield of SL of biliary tract malignancy should have decreased *** the same time,some authors have recently questioned the value of laparoscopic ultrasound(LUS) as a complement of *** this setting,the precise role of SL and LUS in the preoperative workup of HCCA remains *** it seems undoubtedly clear that its efficacy has decreased in the last decades,there is a general consensus that the universal use of SL shouldn't be recommended anymore;SL should be performed only in selected patients with higher risk of holding unresectable disease(T2/T3 or Bismuth type 3/4 and patients with suspicion of metastases).It would also be recommended in patients with potentially resectable disease who would need preoperative invasive ***,SL should be performed preceding laparotomy in one *** studies on the benefit of SL and LUS in this subset of HCCA patients are warranted.

关键词： Hilar cholangiocarcinoma Laparoscopy Staging laparoscopy Laparoscopic ultrasound

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Complexity of adaptive testing in scenarios defined extensionally

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Frontiers of Computer Science 2023年第3期17卷 11-28页

作者： Ismael RODRÍGUEZ David RUBIO fernando RUBIO Dpto.Sistemas Informáticos y Computación Facultad de InformáticaUniversidad Complutense de MadridMadrid 28040Spain Instituto de Tecnologías del Conocimiento Universidad Complutense de MadridMadrid 28040Spain Instituto de Biomecánica de Valencia.Universitat Politècnica de València València 46022Spain

In this paper,we consider a testing setting where the set of possible definitions of the Implementation Under Test(IUT),as well as the behavior of each of these definitions in all possible interactions,are extensionally defined,i.e.,on an element-by-element and case-by-case *** this setting,the problem of finding the minimum testing strategy such that collected observations will necessarily let us decide whether the IUT is correct or not(i.e.,whether it necessarily belongs to the set of possible correct definitions or not)is studied in four possible problem variants:with or without non-determinism;and with or without more than one possible definition in the sets of possible correct and incorrect *** computational complexity of these variants is studied,and properties such as PSPACE-completeness and Log-APX-hardness are identified.

关键词： formal testing adaptive testing computational complexity PSPACE-completeness approximation hardness

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Nonalcoholic fatty liver disease in type 2 diabetes: awareness is the first step toward change

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Hepatobiliary Surgery and Nutrition 2020年第4期9卷 493-496页

作者： fernando Bril Division of Endocrinology University of FloridaGainesvilleFLUSA Diabetes and Metabolism 2Internal MedicineDepartment of MedicineUniversity of FloridaGainesvilleFLUSA

In a recent article published in J Hepatol,Younossi et *** a comprehensive systematic review and meta-analysis on the prevalence of NAFLD,NASH and advanced fibrosis in patients with type 2 diabetes mellitus(T2DM)across the globe(1).Among the 80 studies included in the final analysis(for a total of 49,419 patients)the prevalence of NAFLD was between 50–70%in all continents,except for Africa,where a prevalence of 30.4%was *** lower prevalence of NAFLD in Africa is consistent with prior reports showing a lower prevalence of NAFLD among African-American individuals(2,3).Of note,once African-American patients develop NAFLD,their progression to NASH and advanced fibrosis is similar to other ethnic groups,and still a significant cause of cirrhosis in this population(4).

关键词： NAFLD prevalence al.

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