Since the publication of Satoshi Nakamoto's white paper on Bitcoin in 2008,blockchain has(slowly)become one of the most frequently discussed methods for securing data storage and transfer through decentralized,tru...
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Since the publication of Satoshi Nakamoto's white paper on Bitcoin in 2008,blockchain has(slowly)become one of the most frequently discussed methods for securing data storage and transfer through decentralized,trustless,peer-to-peer *** research identifies peer-reviewed literature that seeks to utilize blockchain for cyber security purposes and presents a systematic analysis of the most frequently adopted blockchain security *** findings show that the Internet of Things(IoT)lends itself well to novel blockchain applications,as do networks and machine visualization,public-key cryptography,web applications,certification schemes and the secure storage of Personally Identifiable Information(PII).This timely systematic review also sheds light on future directions of research,education and practices in the blockchain and cyber security space,such as security of blockchain in IoT,security of blockchain for AI data,and sidechain security.
Voltage control of magnetism promises great energy efficiency in writing magnetic memory. Here, using Cr/Mo/CoFeB/MgO multilayers stable under high annealing temperatures up to 590°C, we significantly enhance the...
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Voltage control of magnetism promises great energy efficiency in writing magnetic memory. Here, using Cr/Mo/CoFeB/MgO multilayers stable under high annealing temperatures up to 590°C, we significantly enhance the interfacial crystallinity, thereby the interface-originated perpendicular magnetic anisotropy(PMA), voltage-controlled magnetic anisotropy(VCMA), and interface magnetoelectric(ME) effect. High interfacial PMA of 1.35 mJ/m^2, VCMA coefficient of-138 fJ/(V m), and interface ME coefficient, which is 2-3 orders of magnitude larger than ab initio calculation results are simultaneously achieved after annealing at 500°C. These promising results enabled by the industry-applicable sputtering process will pave the way for highdensity voltage-controlled spintronic devices.
作者：
Nisha ShuklaPuneet RanaOAnwar BégBani SinghAKadirDepartment of Mathematics
Jaypee Institute of Information TechnologyA-10Sector-62Noida 201307Uttar PradeshIndia Fluid Mechanics
Propulsion and NanosystemsAeronautical and Mechanical EngineeringSchool of ComputingScience&EngineeringUniversity of SalfordNewton BuildingM54WTUK Materials and Corrosion
Petroleum and Gas EngineeringSchool of ComputingScience&EngineeringUniversity of SalfordNewton BuildingM54WTUK
Stimulated by thermal optimization in magnetic materials process engineering,the present investigation investigates theoretically the entropy generation in mixed convection magnetohydrodynamic(MHD)flow of an electrica...
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Stimulated by thermal optimization in magnetic materials process engineering,the present investigation investigates theoretically the entropy generation in mixed convection magnetohydrodynamic(MHD)flow of an electrically-conducting nanofluid from a vertical *** mathematical model includes the effects of viscous dissipation,second order velocity slip and thermal slip,has been *** cylindrical partial differential form of the two-component non-homogenous nanofluid model has been transformed into a system of coupled ordinary differential equations by applying similarity *** effects of governing parameters with no-flux nanoparticle concentration have been examined on important quantities of ***,the dimensionless form of the entropy generation number has also been evaluated using homotopy analysis method(HAM).The present analytical results achieve good correlation with numerical results(shooting method).Entropy is found to be an increasing function of second order velocity slip,magnetic field and curvature *** is elevated with increasing curvature parameter and magnetic parameter whereas it is reduced with mixed convection *** flow is accelerated with curvature parameter but decelerated with magnetic *** transfer rate(Nusselt number)is enhanced with greater mixed convection parameter,curvature parameter and first order velocity slip parameter but reduced with increasing second order velocity slip *** generation is also increased with magnetic parameter,second order slip velocity parameter,curvature parameter,thermophoresis parameter,buoyancy parameter and Reynolds number whereas it is suppressed with first order velocity slip parameter,Brownian motion parameter and thermal slip parameter.
A metamaterial absorber is computed numerically and measured experimentally in a 150-THz^300-THz *** measured absorber achieves high absorption rate for both transverse electric（TE） and transverse magnetic（TM） pol...
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A metamaterial absorber is computed numerically and measured experimentally in a 150-THz^300-THz *** measured absorber achieves high absorption rate for both transverse electric（TE） and transverse magnetic（TM） polarizations at large angles of *** absorption sensor scheme is proposed based on the measured absorber and the variations of surrounding *** surrounding media are applied to the surface of the absorption sensor（including air,water,and glucose solution）.Measured results show that high figure of merit（FOM） values are obtained for different surrounding *** proposed sensor does not depend on the substrate,which means that it can be transplanted to different sensing platforms conveniently.
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