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Intelligent Satin Bowerbird Optimizer Based Compression Technique for Remote Sensing Images

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Computers, Materials & Continua 2022年第8期72卷 2683-2696页

作者： M.Saravanan j.jayanthi u.Sakthi R.Rajkumar gyanendra Prasad joshi L.Minh Dang Hyeonjoon Moon Department of Networking and Communications School of ComputingSRM Institute of Science and TechnologyKattankulathur603203India Department of Computer Science and Engineering Sona College of TechnologySalem636005India Department of Computer Science and Engineering Saveetha School of EngineeringSIMATSChennai602105India Department of Electronics and Instrumentation Engineering Kongu Engineering CollegePerundurai638060India Department of Computer Science and Engineering Sejong UniversitySeoul05006Korea

Due to latest advancements in the field of remote sensing,it becomes easier to acquire high quality images by the use of various satellites along with the sensing *** the massive quantity of data poses a challenging issue to store and effectively transmit the remote sensing ***,image compression techniques can be utilized to process remote sensing *** this aspect,vector quantization(VQ)can be employed for image compression and the widely applied VQ approach is Linde–Buzo–gray(LBg)which creates a local optimum codebook for image *** process of constructing the codebook can be treated as the optimization issue and the metaheuristic algorithms can be utilized for resolving *** this motivation,this article presents an intelligent satin bowerbird optimizer based compression technique(ISBO-CT)for remote sensing *** goal of the ISBO-CT technique is to proficiently compress the remote sensing images by the effective design of ***,the ISBO-CT technique makes use of satin bowerbird optimizer(SBO)with LBg approach is *** design of SBO algorithm for remote sensing image compression depicts the novelty of the *** showcase the enhanced efficiency of ISBO-CT approach,an extensive range of simulations were applied and the outcomes reported the optimum performance of ISBO-CT technique related to the recent state of art image compression approaches.

关键词： Remote sensing images image compression vector quantization sand bowerbird optimizer metaheuristics space savings

Low-temperature thermocatalytic particulate carbon decomposition via urea solution-combustion derived CeO2 nanostructures

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journal of Rare Earths 2021年第1期39卷 67-74,I0003页

作者： S.P.Ratnayake M.M.M.g.P.g.Mantilaka C.Sandaruwan D.Dahanayake Y.Pivini gunasekara S.jeyasakthy N.M.gurusinghe u.K.Wanninayake K.M.Nalin de Silva Sri Lanka Institute of Nanotechnology Nanotechnology and Science ParkHomagamaSri Lanka School of Science Royal Melbourne Institute of Technology University(RMIT)Victoria3000Australia Postgraduate Institute of Science University of PeradeniyaPeradeniyaSri Lanka Centre for Advanced Materials and Devices(CAMD) Department of ChemistryUniversity of ColomboColombo 00300Sri Lanka

A facile,one-pot,urea solution combustion route was utilized to synthesize highly catalytic CeO2 ***2 prepared under varying thermal conditions was characterized by electron microscopy,energy dispersive X-ray spectroscopy,X-ray diffraction,X-ray photoelectron spectroscopy,infrared and Raman *** the synthesis temperature is raised from 400 to 1000℃,the crystallite size and dspacing of nanoparticles are observed to reduce while cell parameters remain in the same *** size exhibits an accession from~20 to~50 nm along the *** CeO2 nanoparticles are detected as a composite structure of CeO2 and graphitic carbon nitride(g-C3 N4)produced by the pyrolysis of *** the solid carbon particulate oxidation capacity,an outstanding performance is exhibited by CeO2 synthesized at 800℃where the oxidation onset temperature is reduced by 27%compared with the *** superior performance is attributed to the carbon nitride-generated unique CeO2 nanomorphology consolidating ample reactive sites and facilitated oxygen delivery for a highly efficient thermocatalytic *** atmospheric pollution mitigation,synthesis of these CeO2 nanostructures represents a cost effective and convenient abatement technique for carbon particulates in comparison to cost-intensive,environmentally detrimental and noble-metal based techniques.

关键词： Ceria Nanoparticles Soot Solution combustion graphitic carbon nitride Rare earths

Discussion on "Hydraulic parameters in channels with wall vegetation and gravel bed" by Hossein Afzalimehr,jueyi Sui and Razieh Moghbel[***.,25(2010) 81-90]

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International journal of Sediment Research 2011年第2期26卷 247-249页

作者： O.YAgCI u.TuRKER Istanbul Technical university Civil Engineering FacultyDivision of Hydraulics Near East university Civil Engineering DepartmentDivision of Hydraulics

We discussants appreciate the authors’ investigation on the impacts of the vegetated channel walls and aspect ratio on flow velocity profiles,shear stress distribution and roughness coefficient of *** primary aim of this comment is to emphasize some of the points which were not considered by the authors during their *** discussers would like to mention the following points regarding the paper. The expression of "wall vegetation" is a new term for the current *** the researchers have not given enough explanation about *** is "wall vegetation"?Where can we observe wall-vegetation in nature?What are the characteristic species as "wall-vegetation"?We think that the clarification of this point will significantly improve the benefit of this study.

关键词： Discussion on by Hossein Afzalimehr,jueyi Sui and Razieh Moghbel[Int.j.Sed.Res Hydraulic parameters in channels with wall vegetation and gravel bed

Competition between fusion-evaporation and multifragmentation in central collisions in ^(58)Ni+^(48)Ca at 25A MeV

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Nuclear Science and Techniques 2013年第5期24卷 82-88页

作者： FRANCALANZA L ABBONDANNO u AMORINI F BARLINI S BINI M BOugAuLT R BRuNO M CARDELLA g CASINI g AgOSTINO M D' De FILIPPO V De SANCTIS j.gERACI E gIuSSANI A gRAMEgNA F guIOT B KRAVCHuK V La guIDARA E LANZALONE g Le NEINDRE N MAIOLINO C MARINI P MORELLI L OLMI A PAgANO A PAPA M PIANTELLI S PIRRONE S POLITI g POggI g PORTO F RuSSOTTO P RIZZO F VANNINI g VANNuCCI L INFN Laboratori Nazionali del Sud-LNS Catania 95123Italy Dipartimento di Fisica Universitàdi Catania I-95129Italy INFN Sezione di Trieste Trieste I-34127Italy Dipartimento di Fisica Universitàdi FirenzeINFN Sezione di Firenze 1-50139Italy LPC Caen IN2P3-CNRS/ENSICAEN and UniversitéF-14050 Caen cedex 5-140France Dipartimento di Fisica Universitàdi Bologna and INFN Sezione di Bologna 4-50121Italy INFN Sezione di Catania I-95129 Italy INFN Sezione di Firenze I-50139 Italy Dipartimento di Fisica Universitàdi Milano and INFN Sezione di Milano1-20126Italy INFN Laboratori Nazionali di Legnaro 1-35020 Italy Centro Siciliano di Fisica Nucleare e Struttura della Materia Catania 1-95129Italy universitàKore Enna 1-94100Italy

The experimental data concerning the58Ni+48Ca reaction at Elab(Ni)=25A MeV,collected by using the CHIMERA 4π device,have been analyzed in order to investigate the competition among different reaction mechanisms for central collisions in the Fermi energy *** a main criterion for centrality selection we have chosen the flow angle(flow) method,making an event-by-event analysis that considers the shape of events,as it is determined by the eigenvectors of the experimental kinetic-energy *** the selected central events(flow >60°) some global variables,good to characterize the pattern of central collisions have been *** main features of the reaction products were explored by using different constraints on some of the relevant observables,like mass and velocity distributions and their *** emphasis was devoted,for central collisions,to the competition between fusion-evaporation processes with subsequent identification of a heavy residue and a possible multifragmentation mechanism of a well defined(if any) transient nuclear *** evolution of the system and pre-equilibrium emission were taken into account by simulating the reactions in the framework of transport *** approaches have been envisaged(dynamical stochastic BNV calculations + sequential SIMON code,QMD,CoMD,etc.).Preliminary comparison of the experimental data with BNV calculations shows reasonable agreement with the assumption of sequential multifragmentation emission in the mass region of IMFs close to the heavy *** deviations from sequential processes were found for those IMFs in the region of masses intermediate between the mass of heavy residues and the mass of light *** simulations are in *** experimental analysis will be enriched also by information obtained inspecting the IMF-IMF correlation function,in order to elucidated the nature of space-time decay property of the emitting source associated with events having

关键词：多重碎裂中心碰撞蒸发过程 MeV 竞争熔合国际货币基金组织事件分析

Fundamental understanding of high-capacity lithium-excess cathodes with disordered rock salt structure

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journal of Materials Science & Technology 2021年第15期74卷 60-68页

作者： Hao Lin Beatriz Moreno Kamil Kucuk Sensen Zhang Shankar Aryal Zheng Li Carlo u.Segre jassiel Rodriguez Dhanya Puthusseri Lirong Cai Xuechen jiao Vilas g.Pol Davidson School of Chemical Engineering Purdue UniversityWest LafayetteIN47907USA Department of Materials Science and Engineering Iowa State UniversityAmesIA 50011USA Canadian Light Source Inc. SaskatoonSaskatchewan S7N 5A8Canada Department of Physics&CSRRl Illinois Institute of TechnologyChicagoIL60616 USA School of Metallurgy Northeastern University.Shenyang 110819China Advanced Photon Source Argonne National LaboratoryArgonneIllinois 60439USA Australian Synchrotron ANSTOClaytonVictoria 3168Australia

As a new class of lithium rich cathodes,disordered rock-salt cathodes have been of primary interest,because of their ability to deliver a promisingly high capacity up to 300 mAh/***,some fundamental issues are yet to be fully understood and a comprehensive mastering of their solid-state chemistry,kinetics and thermal stability is ***,we select a high capacity cation-disordered positive electrode-Li_(1.2)Ni_(0.4)Nb_(0.4)O_(2)as a model compound to study intrinsic reaction mechanism,including charge compensation mechanism,kinetics,thermal stability,and structural *** combining soft and hard X-ray absorption spectroscopy(XAS),X-ray photoelectron spectroscopy(XPS)with operando and exsitu differential scanning calorimetry(DSC),galvanostatic intermittent titration technique(gITT),cyclic voltammetry(CV),and X-ray diffraction(XRD),we present holistic information on disordered rock-salt *** work provides beneficial insights into designing and tailoring new positive electrodes with disordered rock-salt structure.

关键词： Salt-rock structure Hard/soft XAS In-situ DSC Structural evolution

Lump and travelling wave solutions of a(3+1)-dimensional nonlinear evolution equation

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journal of Ocean Engineering and Science 2024年第2期9卷 164-172页

作者： Kalim u.Tariq Raja Nadir Tufail Department of Mathematics Mirpur University of Science and TechnologyMirpurAJK 10250Pakistan

In this paper,the(3+1)-dimensional nonlinear evolution equation is studied *** bilinear form of given model is achieved by using the Hirota bilinear *** a result,the lump waves and col-lisions between lumps and periodic waves,the collision among lump wave and single,double-kink soliton solutions as well as the collision between lump,periodic,and single,double-kink soliton solutions for the given model are ***,some new traveling wave solutions are developed by applying the exp(−φ(ξ))expansion *** 3D,2D and contours plots are drawn to demonstrate the nature of the nonlinear model for setting appropriate set of *** a result,a collection of bright,dark,periodic,rational function and elliptic function solutions are *** applied strategies appear to be more powerful and efficient approaches to construct some new traveling wave structures for various contemporary models of recent era.

关键词： The Hirota bilinear method Lump wave solution Travelling wave solution Exp(−φ(ξ))expansion technique

Mathematical modeling and optimal intervention of COVID-19 outbreak

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Quantitative Biology 2021年第1期9卷 84-92页

作者： Saroj K Biswas Nasir u Ahmed Department of Electrical and Computer Engineering Temple UniversityPhiladelphiaPA19122USA School of Electrical Engineering and Computer Science University of OttawaOttawaK1N 6N5Canada

Background:The COVID-19 pandemic has become a formidable threat to global health and *** coronavirus SARS-CoV-2 that causes COVID-19 is known to spread by human-to-human transmission,and in about 40%cases,the exposed individuals are asymptomatic which makes it difficult to contain the ***:This paper presents a modified SEIR epidemiological model and uses concepts of optimal control theory for analysis of the effects of intervention methods of the *** the pandemic intervention problem can be viewed as a mathematical optimization problem as there are contradictory outcomes in terms of reduced infection and fatalities but with serious economic ***:Concepts of optimal control theory have been used to determine the optimal control(intervention)levels of i)social contact mitigation and suppression,and ii)pharmaceutical intervention modalities,with minimum impacts on the *** results show that with optimal intervention policies,there is a significant reduction in the number of infections and *** computed optimum intervention policy also provides a timeline of systematic enforcement and relaxation of stay-at-home regulations,and an estimate of the peak time and number of hospitalized critical care ***:The proposed method could be used by local and state governments in planning effective strategies in combating the *** optimum intervention policy provides the necessary lead time to establish necessary field hospitals before getting overwhelmed by new patient *** results also allow the local and state governments to relax social contact suppression guidelines in an orderly manner without triggering a second wave.

关键词： coronavirus COVID-19 SEIR model epidemic model optimization

Atomistic Investigation of Shock-Induced Amorphization within Micro-shear Bands in Hexagonal Close-Packed Titanium

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Acta Metallurgica Sinica(English Letters) 2024年第9期37卷 1590-1600页

作者： Z.C.Meng K.g.Wang T.Ali D.Li C.g.Bai D.S.Xu S.j.Li A.H.Feng g.j.Cao j.H.Yao Q.B.Fan H.Wang R.Yang Institute of Metal Research Chinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China Interdisciplinary Centre for Additive Manufacturing(ICAM) School of Materials and ChemistryUniversity of Shanghai for Science and TechnologyShanghai 200093China School of Materials Science and Engineering Tongji UniversityShanghai 201804China Key Laboratory for Light-Weight Materials Nanjing Tech UniversityNanjing 210009China National Key Laboratory of Science and Technology on Materials under Shock and Impact School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China Beijing Institute of Technology Chongqing Innovation Center Chongqing 401135China

The mechanical response of a single crystal titanium sample against(0001)α surface impact was investigated using molecular dynamics ***,non-uniform plastic deformation was observed in the *** high strain rates,amorphization occurred near the edge of the contact region where severe shear strain induced a large number of stacking faults(SFs)and *** contrast,the central part of the contact region underwent less deformation with significantly fewer ***,instead of amorphization by consuming SFs and dislocations,there was a gradual increase in the density of dislocations and SFs during the process of *** local amorphous regions eventually grew into shear bands.

关键词： Shock compression Amorphization Shear band Titanium Molecular dynamics

Eutectic-reaction brazing of Al_(0.3)CoCrFeNi high-entropy alloys using Ni/Nb/Ni interlayers

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journal of Materials Science & Technology 2022年第26期121卷 245-255页

作者： Y.Lei j.Sun X.g.Song M.X.Yang T.L.Yang j.Yin State Key Laboratory of Advanced Welding and joining Harbin Institute of TechnologyHarbin 150001China Beijing Power Machinery Institute Beijing 100074China Sichuan Aerospace Changzheng Equipment Manufacturing Co. Ltd.Chengdu 610100China

In this study,a novel eutectic-reaction brazing of Al_(0.3)CoCrFeNi high-entropy alloys(HEAs)^(1)was investigated with a design of laminated Ni/Nb/Ni *** typical Al_(0.3)CoCrFeNi brazing seam consisted of proeutecticγ,the lamellar eutectic structure composed of face-centered cubic(FCC)phase(eutecticγ)and C14 Laves,as well as a few amounts of Nb based solid solution.A high density of nanoscale ordered L1_(2)(γ)phase was precipitated withinγphase *** the brazing temperature raised from 1200 to 1320℃,the dissolution volume of Al_(0.3)CoCrFeNi alloy into Ni-Nb liquid was *** microstructure of the brazing seam changed from hypereutectic(blocky Laves+γphase)to eutectic(Laves+eutecticγ)to hypoeutectic structures(proeutecticγ+Laves/γeutectic structure).The shear strength of joints was increased gradually due to the formation of eutectic lamellae and the cellular growth of proeutecticγ*** maximum shear strength of the joint brazed at 1320℃for 10 min was up to 592 MPa,reaching 95%of the base *** joint mainly ruptured in the soft proeutecticγphase in a ductile fracture mode.

关键词： High-entropy alloys Brazing Eutectic structure Shear strength