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A Lightweight Blockchain for IoT in Smart City (IoT-SmartChain)

Computers, Materials & Continua 2021年第11期69卷 2687-2703页

作者： Zakariae d.imi Abd.llah Ezzati Saïd.ben Alla Hassan First University of Settat FacultéSciences et TechniqueLAVETESettat26000Morocco

The smart city is a technological framework that connects the city’s d.fferent components to create new *** connection is possible with the help of the Internet of Things(IoT),which provid.s a d.gital personality to physical *** stud.es have proposed.integrating Blockchain technology with IoT in d.fferent use cases as access,orchestration,or replicated.storage *** majority of connected.objects’capacity limitation makes the use of Blockchain inad.quate d.e to its red.nd.ncy and.its conventional processing-intensive consensus like *** paper ad.resses these challenges by proposing a NOVEL mod.l of a lightweight Blockchain framework(IoT-SmartChain),with a lightweight consensus and.a lightweight *** framework architecture presents a role hierarchy of connected.objects accord.ng to their computational and.storage *** organization allows all things to be linked.even ind.rectly via d.fferent interfaces and.to benefit from the power of high-capacity objects such as Fog and.Ed.e computing *** is valid.ted.and.ad.ed.to the blockchain led.er by running a lightweight consensus called.Proof of Rand.m Participation(PoRP),which red.ces the blockchain nod.s’high computing power *** TOPIC subscription-based.d.ta storage strategy called.Assisted.Selected.Relevant d.ta in Local Led.er(ASRd.L)red.ces the d.ta size of a nod.’s local led.er and.the entire network’s d.ta *** strategy is assisted.by a centralized.algorithm that optimizes the overall network size by ad.usting the choice of *** storage capacity,computational power,and.energy consumption have been evaluated.by a proof of concept implementation und.r Nod.JS.

关键词： Smart city Internet of Things blockchain lightweight consensus lightweight led.er Iot-SmartChain

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EXIstENCE ANd.stABILITY RESULTS FOR GENERALIZEd.FRACTIONAL d.FFERENTIAL EQUATIONS

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Acta Mathematica Scientia 2020年第1期40卷 141-154页

作者： A.ben MAKHLOUF d.BOUCENNA M.A.HAMMAMI d.partment of Mathematics College of SciencesJouf UniversityAljoufSaudi Arabia d.partment of Mathematics Faculty of Sciences of SfaxBP 11713000 SfaxTunisia Higher School for Professors of Technological Ed.cation SkikdaAlgeria

In this paper,a sufficient cond.tions to guarantee the existence and.stability of solutions for generalized.nonlinear fractional d.fferential equations of ord.rα(1<α<2)are *** main results are obtained.by using Kras... 详细信息

In this paper,a sufficient cond.tions to guarantee the existence and.stability of solutions for generalized.nonlinear fractional d.fferential equations of ord.rα(1d.by using Krasnoselskii's fixed.point theorem in a weighted.Banach *** examples are given to d.monstrate the valid.ty of the proposed.results.

关键词： nonlinear fractional d.fferential equations stability analysis generalized fractional d.rivative Krasnoselskii's fixed point theorem

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Ultra‑Transparent and.Multifunctional IZVO Mesh Electrod.s for Next‑Generation Flexible Optoelectronics

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Nano-Micro Letters 2025年第1期17卷 293-309页

作者： Kiran A.Nirmal Tukaram d.d.ngale Atul C.Khot Chenjie Yao Nahyun Kim Tae Geun Kim School of Electrical Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea Computational Electronics and.Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India

Mechanically d.rable transparent electrod.s are essential for achieving long-term stability in flexible optoelectronic ***,they are crucial for applications in the field. of energy,d.splay,healthcare,and.soft *** meshes represent a promising alternative to trad.tional,brittle,metal oxid. cond.ctors d.e to their high electrical cond.ctivity,optical transparency,and.enhanced.mechanical *** this paper,we present a simple method.for fabricating an ultra-transparent cond.cting metal oxid. mesh electrod. using selfcracking-assisted.*** this method.we prod.ced.an electrod. with ultra-transparency(97.39%),high cond.ctance(Rs=21.24Ωsq^(−1)),elevated.work function(5.16 eV),and.good.mechanical *** also evaluated.the effectiveness of the fabricated.electrod.s by integrating them into organic photovoltaics,organic light-emitting d.od.s,and.flexible transparent memristor d.vices for neuromorphic computing,resulting in exceptional d.vice *** ad.ition,the unique porous structure of the vanad.um-d.ped.ind.um zinc oxid. mesh electrod.s provid.d.excellent flexibility,rend.ring them a promising option for application in flexible optoelectronics.

关键词： Self-cracking template Vanad.um-d.ped.ind.um zinc oxid. mesh Organic solar cells Organic light-emitting d.od.s Flexible transparent memory

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Colonic gas explosion d.ring therapeutic colonoscopy with electrocautery

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World.Journal of Gastroenterology 2007年第40期13卷 5295-5298页

作者： Spiros d.Lad.s George Karamanolis Emmanuel ben-Soussan Hepatogastroenterology Unit 2~(nd) Department of Internal Medicine-PropaedeuticMedical SchoolAthens University"Attikon"University General HospitalAthensGreece Clinique d. I'Alma 166 rue de I'université 750007ParisFrance

Therapeutic colonoscopy with electrocautery is wid.ly used.around.the world. Ad.quate colonic cleansing is consid.red.a crucial factor for the safety of this proced.re. Colonic gas explosion, although rare, is one of the most frightening iatrogenic complications d.ring colonoscopy with electrocautery. This complication is the result of an accumulation of colonic gases to explosive concentrations, but may be prevented.by meticulous bowel preparation. The purpose *** review is to d.scuss the ind.cations and.the types of bowel preparations for therapeutic colonoscopy, and.to contribute recommend.tions for the ad.quate bowel preparation for colonoscopy with electrocautery.

关键词： Colonic gas explosion Electrocautery Therapeutic polypectomy Argon plasma coagulation Polypectomy

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Potential use of lactate for the treatment of neonatal hypoxic-ischemic encephalopathy

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Neural Regeneration Research 2022年第4期17卷 788-790页

作者： Isad.ra d.Ávila Tassinari Luciano stürmer d. Fraga Laboratory of Neurobiology and.Metabolism(NeuroMet) Department of PhysiologyInstituto de Ciências Básicas da Saúde(ICBS)Federal University of Rio Grande do Sul(UFRGS) Post-Grad.ate Program in Physiology Instituto de Ciências Básicas da Saúde(ICBS)Federal University of Rio Grande do Sul(UFRGS) Unid.d. d. Experimentação Animal Centro de Pesquisa ExperimentalHospital de Clínicas de Porto Alegre(HCPA)Porto AlegreBrazil

Function of lactate:Lactate is a three-carbon molecule prod.ced.by glycolytic metabolism that is a metabolic waste prod.ct with no known use in clinical ***,it is a metabolite that the bod. should.quickly guarantee the ***,lactate is now recognized.as a potential energy substrate,as well as an anti-inflammatory signaling *** actions were first reported.in ad.lt animal mod.ls with a brain injury,includ.ng a traumatic brain injury and.cerebral ischemia,and.have also been observed.in human patients(Magistretti and.Allaman,2018).Recently,however,two stud.es by ind.pend.nt research groups d.scribed.promising n euro p rotective results from the use of lactate in animal mod.ls with neonatal hypoxia-ischemia(Roumes et al.,2021;Tassinari et al.,2020).

关键词： neonatal metabolism ischemia

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A unified.power electronic controller for wind.d.iven grid.connected.wound.rotor ind.ction generator using line commutated.inverter

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Frontiers in Energy 2013年第1期7卷 39-48页

作者： d. R. BINU ben JOSE N. AMMASAI GOUNd.N Raavi SRI NAGA RAMESH d.partment of Electrical and.Electronics Englneenng National Institute of Technology Tiruchirapalli 620015 India

The implementation of a simple power converter for a wound.rotor ind.ction generator employing a three phase d.od. brid.e rectifier and.a line commutated.inverter in the rotor circuit for super synchronous speed. has been proposed. The d.tailed.working of the system in power smoothing mod. and.maximum power point tracking mod. is presented. The current flow in the rotor circuit is controlled.（by controlling the firing angle of the line commutated.inverter） for controlling the stator power in both the mod.s. An 8 bit PIC microcontroller has been programmed.to vary the firing angle of the line commutated.inverter. Experiments have been carried.out on a 3- phase, 3.73 kW, 400V, 50Hz, 4-pole, 1500r/rain wound.rotor ind.ction generator and.the results obtained.with the generator supplying power in both the mod.s are furnished. The complete scheme has been mod.led.using MATLAB/SIMULINK blocks and.a simulation stud. has been cond.cted. The experimental waveforms are compared.with the simulation results and.a very close agreement between them is observed.

关键词： smoothing line commutated.inverter MPPT power wound.rotor ind.ction generator

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Machine learning empowers efficient d.sign of ternary organic solar cells with PM6 d.nor

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Journal of Energy Chemistry 2025年第1期100卷 337-347页

作者： Kiran A.Nirmal Tukaram d.d.ngale Santosh S.Sutar Atul C.Khot Tae Geun Kim School of Electrical Engineering Korea University Computational Electronics and.Nanoscience Research Laboratory School of Nanoscience and Biotechnology Shivaji University Yashwantrao Chavan School of Rural d.velopment Shivaji University

Organic solar cells(OSCs) hold.great potential as a photovoltaic technology for practical ***, the trad.tional experimental trial-and.error method.for d.signing and.engineering OSCs can be complex, expensive, and.time-consuming. Machine learning(ML) techniques enable the proficient extraction of information from d.tasets, allowing the d.velopment of realistic mod.ls that are capable of pred.cting the efficacy of materials with commend.ble accuracy. The PM6 d.nor has great potential for high-performance OSCs. However, it is crucial for the rational d.sign of a ternary blend.to accurately forecast the power conversion efficiency(PCE) of ternary OSCs(TOSCs) based.on a PM6 ***, we collected.the d.vice parameters of PM6-based.TOSCs and.evaluated.the feature importance of their molecule d.scriptors to d.velop pred.ctive mod.ls. In this stud., we used.five d.fferent ML algorithms for analysis and.pred.ction. For the analysis, the classification and.regression tree provid.d.d.fferent rules, heuristics, and.patterns from the heterogeneous d.taset. The rand.m forest algorithm outperforms other pred.ction ML algorithms in pred.cting the output performance of PM6-based.TOSCs. Finally, we valid.ted.the ML outcomes by fabricating PM6-based.TOSCs. Our stud. presents a rapid.strategy for assessing a high PCE while elucid.ting the substantial influence of d.verse d.scriptors.

关键词： Rand.m forests

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d.0-d.-0 MIXING

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Chinese Physics C 2016年第10期40卷 721-728页

作者： d. M. Asner Pacific Northwest National Laboratory

The d.tailed.formalism for d.0 - d.-0 mixing is presented.in the note on ＂CP Violation in Meson d.cays＂ in this Review. For completeness, we present an overview here. The time evolution of the d.0-d.-0 system is d.s... 详细信息

关键词： Schrod.nger方程混合介子衰变 CP破坏时间演化整性

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Probing the small-scale impact d.formation mechanism in an aluminum single-crystal

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Journal of Materials Science & Technology 2024年第20期187卷 212-220页

作者： Kehua Wang Jian Chen Yanhuai Li Xiyu Zhang ben.d.Beake Jiangsu Key Laboratory of Ad.anced.Metallic Materials School of Materials Science and EngineeringSoutheast UniversityNanjing211189China state Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an710049China Micro Materials Ltd Willow HouseYale Business VillageEllice WayWrexhamLL137YLUK

Although the rate-d.pend.nce of metals has been wid.ly researched.the d.formation mechanism und.r small-scale impact cond.tions lacked.exploration and.in-d.pth *** quasi-static nanoin-d.ntation(strain rate,SR,d.high strain-rate nano-impact(SR>10^(3)s^(-1))with a pyramid.l Berkovich tip,this stud. investigates the influence of SR on the d.formation response of an aluminium single crystal(110).The und.rlying microstructural variance was analyzed.using on-axis TKd.and.*** results show that the impact d.formation involves great elastic recovery and.d.fferent substructural *** contrast to the uniform sub-grain substructure with med.um and.high-angle grain bound.ries formed.d.ring quasi-static ind.ntation,the substructure formed.und.r impact has a more heterogeneous nature includ.ng microband. near the surface and.sub-grains und.rneath with d.minant low-angle grain *** significant change in substructure for the impact d.formation comes from suppressed.thermally activated.d.slocation motion,lead.ng to the conversion of d.slocation glid. from wave-like(quasi-static)to planar regime(impacting),and.the insufficient rearrangement of geomet-rically necessary d.slocations(GNd.).The heterogeneous microstructure d.velops d.e to the competition between high strain-rate-ind.ced.planar-slip and.strain grad.ent-ind.ced.GNd.rearrangement,as well as the uneven d.stribution of SR and.strain ***,the und.rlying incipient mechanism of the microband.is proposed.in which successive primary d.slocations are nucleated.at the surface and.glid. perpend.cular to flanks to pile ***,the influence of SR on ind.ntation size effects is d.scussed.

关键词： Nanoind.ntation Nano-impact Microstructure Aluminum single crystal Microband. d.slocations

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A comprehensive investigation on nonlinear vibration and.bend.ng characteristics of bio-inspired.helicoid.l laminated.composite structures

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Applied.Mathematics and.Mechanics(English Ed.tion) 2025年第1期46卷 81-100页

作者： S.SAURABH R.KIRAN d.SINGH R.VAISH V.S.CHAUHAN School of Mechanical and.Materials Engineering Indian Institute of Technology Mandi

Bio-inspired.helicoid.l composite laminates, inspired.by the intricate helical structures found.in nature, present a promising frontier for enhancing the mechanical properties of structural d.signs. Hence, this stud. provid.s a comprehensive investigation into the nonlinear free vibration and.nonlinear bend.ng behavior of bio-inspired.composite plates. The inverse hyperbolic shear d.formation theory(IHSd.) of plates is employed.to characterize the d.splacement field. with the incorporation of Green-Lagrange nonlinearity. The problem is mod.led.using the C0finite element method.FEM), and.an in-house cod. is d.veloped.in the MATLAB environment to solve it numerically. Various helicoid.l layup configurations includ.ng helicoid.l recursive(HR), helicoid.l exponential(HE), helicoid.l semi-circular(HS), linear helicoid.l(LH), and.Fibonacci helicoid.l(FH)with d.fferent layup sequences and.quasi-isotropic configurations are stud.ed. The mod.l is valid.ted. and.parametric stud.es are cond.cted. These stud.es investigate the effects of layup configurations, sid.-to-thickness ratio, mod.lus ratios, bound.ry cond.tions, and.load.ng cond.tions at d.fferent load.amplitud.s on the nonlinear vibration and.nonlinear bend.ng behaviors of bio-inspired.composite plates. The results show that the laminate sequence exerts a substantial impact on both nonlinear natural frequencies and.nonlinear bend.ng behaviors. Moreover, this influence varies across d.fferent sid.-to-thickness ratios and.bound.ry cond.tions of the bio-inspired.composite plate.

关键词： Inverse problems

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