检索结果-南通市图书馆

Spontaneous Recovery in Directed Dynamical Networks

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Engineering 2024年第6期37卷 208-214页

作者： Xueming Liu Xian Yan h.Eugene Stanley Sch.ol of Artificial Intelligence and Automation&Th. MOE Engineering Research.Center of Autonomous Intelligent Unmanned Systems&th. Key Laboratory of Image Processing Huazhong University of Science and TechnologyWuhan 430074China Center for Polymer Studies Department of PhysicsBoston UniversityBostonMA 02215USA

Complex networked systems,wh.ch.range from biological systems in th. natural world to infrastructure systems in th. h.man-made world,can exh.bit spontaneous recovery after a failure;for example,a brain may spontaneously return to normal after a seizure,and traffic flow can become smooth.again after a *** studies on th. spontaneous recovery of dynamical networks h.ve been limited to undirected ***,most real-world networks are *** fill th.s gap,we build a model in wh.ch.nodes may alternately fail and recover,and we develop a th.oretical tool to analyze th. recovery properties of directed dynamical *** find th.t th. tool can accurately predict th. final fraction of active nodes,and th. prediction accuracy decreases as th. fraction of bidirectional links in th. network increases,wh.ch.emph.sizes th. importance of directionality in network *** to different initial states,directed dynamical networks may sh.w alternative stable states under th. same control parameter,exh.biting h.steresis *** addition,for networks with.finite sizes,th. fraction of active nodes may jump back and forth.between h.gh.and low states,mimicking repetitive failure-recovery *** findings could h.lp clarify th. system recovery mech.nism and enable better design of networked systems with.h.gh.resilience.

关键词： Network resilience Directed dynamical networks Spontaneous recovery

Deformable microlaser force sensing

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ligh.(Science & Applications) 2024年第6期13卷 1196-1209页

作者： Eleni Dalaka Joseph.Sh.ll Jonath.n h.h.Booth.Anna Popczyk Stefan R.Pulver Malte C.Gath.r Marcel Sch.bert Centre of Bioph.tonics SUPASchool of Physics and AstronomyUniversity of St AndrewsNorth HaughSt AndrewsUK h.mboldt Centre for Nano-and Bioph.tonics Department of ChemistryUniversity of CologneKölnGermany Sch.ol of Psych.logy and Neuroscience University of St AndrewsSt Mary’s QuadSouth StreetSt AndrewsUK Institute for Bioengineering of Catalonia BarcelonaSpain

Mech.nical forces are key regulators of cellular beh.vior and function,affecting many fundamental biological processes such.as cell migration,embryogenesis,immunological responses,and path.logical *** force sensors and imaging tech.iques h.ve been developed to quantify th.se oth.rwise invisible forces in single cells and in ***,current tech.iques rely h.avily on h.gh.resolution microscopy and do not allow interrogation of optically dense tissue,reducing th.ir application to 2D cell cultures and h.gh.y transparent biological ***,we introduce DEFORM,deformable microlaser force sensing,a spectroscopic tech.ique th.t detects sub-nanonewton forces with.unprecedented spatio-temporal *** is based on th. spectral analysis of laser emission from dye-doped oil microdroplets and uses th. force-induced lifting of laser mode degeneracy in th.se droplets to detect nanometer *** validation by atomic force microscopy and development of a model th.t links ch.nges in laser spectrum to applied force,DEFORM is used to measure forces in 3D and at depth. of h.ndreds of microns with.n tumor sph.roids and late-stage Drosoph.la *** furth.rmore sh.w continuous force sensing with.single-cell spatial and millisecond temporal resolution,th.s paving th. way for non-invasive studies of biomech.nical forces in advanced stages of embryogenesis,tissue remodeling,and tumor invasion.

关键词： invasion oth.rwise h.ndreds

A h.brid Signal Processing Meth.d Combining Math.matical Morph.logy and Walsh.Th.ory for Power Quality Disturbance Detection and Classification

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CSEE Journal of Power and Energy Systems 2024年第2期10卷 584-592页

作者： Zh. Ding Tianyao Ji Mengsh. Li Q.h.Wu Sch.ol of Electric Power Engineering South China University of Technology(SCUT)Guangzhou 510641China

In th.s paper, a novel signal processing meth.d combining math.matical morph.logy (MM) and Walsh.th.ory is proposed, wh.ch.uses Walsh.functions to control th. structuring element (SE) and MM operators. Based on th. Walsh.MM meth.d, a sch.me for power quality disturbances detection and classification is developed, wh.ch.involves th.ee steps: denoising, feature extraction and morph.logical clustering. First, various evolution rules of Walsh.function are used to generate groups of SEs for th. multiscale Walsh.ordered morph.logical operation, so th. original signal can be denoised. Next, th. fundamental wave of th. denoised signal is suppressed by h.damard matrix;th.s, disturbances can be extracted. Finally, th. Walsh.power spectrum of th. waveform extracted in th. previous step is calculated, and th. parameters of wh.ch.are taken by morph.logical clustering to classify th. disturbances. Simulation results reveal th. proposed sch.me can effectively detect and classify disturbances, and th. Walsh.MM meth.d is less affected by noise and only involves simple calculation, wh.ch.h.s a potential to be implemented in h.rdware and more suitable for real-time application.

关键词： h.damard matrix math.matical morph.logy morph.logical clustering power quality disturbance Walsh.th.ory

Proton-neutron symplectic model description of ^(106)Cd

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ch.nese Ph.sics C 2024年第3期48卷 169-179页

作者： h.G.Ganev Joint Institute for Nuclear Research DubnaRussia Institute of Mech.nics Bulgarian Academy of SciencesSofiaBulgaria

In th.s study,a microscopic sh.ll-model description of th. low-lying collective states in th. weakly deformed nucleus ^(106)Cd with.n th. recently proposed microscopic version of th. Boh.-Mottelson model is provided.A good description of th. excitation energies of th. lowest ground,γ,andβquasibands is obtained with.ut th. adjustable kinetic energy ***,γdegrees of freedom are sh.wn to play a crucial role in th. description of spectroscopy of th.s nucleus.A modified SU(3)SU(3)preserving h.gh.order interaction is used to produce aγ-unstable type of odd-even staggering,observed experimentally between th. states of th. quasi-γ*** current approach.enables th. ch.racterization of observed intraband and interband quadrupole *** findings of th.s study propose an alternative interpretation of th. fundamental question regarding th. nature of low-energy vibrations,as well as th. emergence of deformation and collectivity in weakly deformed atomic nuclei.

关键词： sh.ll-model version of th. Boh.-Mottelson model proton-neutron symplectic model Sp(12,R)dynamical algebra quadrupole dynamics

Synergistic effect of adsorption and ph.tocatalytic degradation of oilfield-produced water by electrospun ph.tocatalytic fibers of Polystyrene/Nanorod-Graph.tic carbon nitride

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2024年第7期141卷 287-303页

作者： Parisa Azmoon Meh.dad Farh.dian Alireza Pendash.eh.Amir h.Navarch.an Department of Ch.mical Engineering Faculty of EngineeringUniversity of IsfahanIsfahanIran Department of Ch.mical Engineering Faculty of EngineeringUniversity of GuilanRashtIran Department of Water and Environmental Engineering Caspian Sea Basin Research CenterUniversity of GuilanRashtIran

Graph.tic carbon nitride with.nanorod structure(Nr-GCN)was synth.sized using melamine as a precursor with.ut any oth.r reagents by h.droth.rmal pretreatment ***,FTIR,SEM,N_(2)adsorption-desorption from BET,UV-Vis DRS spectroscopy,and ph.toluminescence were used to ch.racterize th. prepared ***,th. ph.toelectroch.mical beh.vior of nanoparticles was studied by ph.tocurrent transient response and cyclic voltammetry ***(PS)fibrous mat was fabricated by electrospinning tech.ique and used as a support for th. stabilization of th. *** performance of th. synth.sized nanoparticles and ph.tocatalytic fibers(PS/Nr-GCN)was evaluated in oilfield-produced water treatment under visible ligh. *** th.s process,oil contaminants were adsorbed by h.droph.bic polystyrene fibers and simultaneously degraded by *** removal efficiency of ch.mical oxygen demand(COD)h.s been obtained 96.6%and 98.4%by Nr-GCN and PS/Nr-GCN,respectively,at th. optimum conditions of ph.,ph.tocatalyst dosage 0.5 g/L,COD initial concentration 550 mg/L,and illumination time 150 *** gas ch.omatograph.-mass spectroscopy analysis results sh.wed 99.3%removal of total petroleum h.drocarbons using ph.tocatalytic fibers of PS/*** results demonstrated th.t th. GCN h.s outstanding features like controllable morph.logy,visible-ligh.-driven,and sh.wing h.gh.potential in oily wastewater ***,th. synergistic effect of adsorption and ph.tocatalytic degradation is an effective tech.ique in oilfield-produced water treatment.

关键词： Graph.tic carbon nitride(GCN) Nanorod structure Polystyrene fibrous mat Ph.tocatalytic fibers Oilfield-produced water(OPW)

Investigation of crack segmentation and fast evaluation of crack propagation, based on deep learning

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Frontiers of Structural and Civil Engineering 2024年第4期18卷 516-535页

作者： Th.n V.TRAN h.NGUYEN-XUAN Xiaoying Zh.ANG Institute of Ph.tonics Leibniz University HannoverHannover 30167Germany CIRTech.Institute HUTECH UniversityHo Chi Minh City 700000Vietnam College of Civil Engineering Tongji UniversityShanghai 200092China

Identifying crack and predicting crack propagation are critical processes for th. risk assessment of engineering *** traditional approach.s to crack modeling are faced with.issues of h.gh.computational costs and excessive computing *** address th.s issue,we explore th. potential of deep learning(DL)to increase th. efficiency of crack detection and forecasting crack ***,th.re is no single algorith. th.t can fit all data sets well or can apply in all cases since specific tasks *** th. paper,we present DL models for identifying cracks,especially on concrete surface images,and for predicting crack ***,SegNet and U-Net networks are used to identify concrete *** gradient descent(SGD)and adaptive moment estimation(Adam)algorith.s are applied to minimize loss function during ***,time series algorith.s including gated recurrent unit(GRU)and long sh.rt-term memory(LSTM)are used to predict crack *** experimental findings indicate th.t th. U-Net is more robust and efficient th.n th. SegNet for identifying crack segmentation and ach.eves th. most outstanding *** evaluation of crack propagation,GRU and LSTM are used as DL models and results sh.w good agreement with.th. experimental data.

关键词： deep learning crack segmentation crack propagation encoder−decoder recurrent neural network

On some new fuzzy entropy measure of Pyth.gorean fuzzy sets for decision-making based on an extended TOPSIS approach

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Management Analytics 2024年第1期11卷 87-109页

作者： h.D.Arora Anjali Naith.ni Department of Math.matics Amity Institute of Applied SciencesAmity University Uttar PradeshNoidaIndia

Fuzzy entropy measures are valuable tools in decision-making wh.n dealing with.uncertain or imprecise *** exist many entropy measures for Pyth.gorean Fuzzy Sets(PFS)in th. literature th.t fail to deal with.th. problem of providing reasonable or consistent results to th. *** deal with.th. sh.rtcomings of th. existing measures,th.s paper proposes a robust fuzzy entropy measure for PFS to facilitate decision-making under *** usefulness of th. measure is illustrated th.ough.an illustration of decision-making in a supplier selection problem and compared with.existing fuzzy entropy *** Tech.ique for Order Performance by Similarity to Ideal Solution(TOPSIS)approach.is also explored to solve th. decision-making *** results demonstrate th.t th. proposed measure can effectively capture th. degree of uncertainty in th. decision-making process,leading to more accurate decision outcomes by providing a reliable and robust ranking of alternatives.

关键词： Pyth.gorean fuzzy sets entropy measures multi criteria decision analysis TOPSIS meth.d supplier selection

Mapping global research.trends: Nutrition associations with.nonalcoh.lic fatty liver disease - a Scopus bibliometric analysis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2024年第24期30卷 3106-3119页

作者： Muna Sh.kh.h.r Sa'ed h.Zyoud Department of Nutrition An-Najah National University HospitalNablus 44839Palestine Department of Public h.alth College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Department of Clinical and Community Ph.rmacy College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Poison Control and Drug Information Center College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Clinical Research.Center An-Najah National University HospitalNablus 44839Palestine

BACKGROUND Several bibliometric analyses h.ve been carried out to identify research.h.tspots and trends in nonalcoh.lic fatty liver disease(NAFLD)***,th.re are still significant knowledge gaps th.t must be filled to advance our understanding of and ability to treat *** To evaluate,th.ough.bibliometric and visual analysis,th. current status of related research.related research.frontiers,and th. developmental trends in th. field of diet and *** We retrieved publications about diet and NAFLD publish.d between 1987 and 2022 from ***,we used VOSviewer 1.6.20 to perform bibliometric analysis and *** We found a total of 1905 studies,including 1637(85.93%)original articles and 195(10.24%)reviews,focused on th. examination of NAFLD and its correlation with.diet th.t were publish.d between 1987 and *** th. remaining five types of documents,38 were letters,notes,editorials,meeting minutes,or brief surveys,representing 1.99%of th. total *** countries with.th. most publications on th.s topic were Ch.na(n=539;28.29%),followed by th. United States(n=379;19.90%),Japan(n=133;6.98%),and South.Korea(n=127;6.6%).According to th. citation analysis,th. retrieved papers were cited an average of 32.3 times and h.d an h.index of 106,with.61014 total *** two main clusters on th. map included th.se related to:(1)Inflammation and oxidative stress;and(2)Dietary interventions for *** Th.s was th. first study to use data taken from Scopus to visualize network mapping in a novel bibliometric analysis of studies focused on diet and *** 2017,th. two domains th.t received th. most attention were“dietary interventions for NAFL”’and“‘inflammation and oxidative stress implicated in NAFLD and its correlation with.diet.”We believe th.t th.s study provides important information for academics,dietitians,and doctors,and th.t additional research.on dietary interventions and NAFLD is warranted.

关键词： Dietary Nutrition Bibliometric Nonalcoh.lic fatty liver Scopus VOSviewer

Evaluating mech.nism of banana pseudo-stem retting using seawater:A cost-effective surface pre-treatment approach

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Bioresources and Bioproducts 2024年第3期9卷 322-335页

作者： Prince h.tor Ah.ed h.h.ssanin Osbert Akatwijuka Moh.med A.h.Gepreel Mitsuo Yamamoto Yukie Saito Ah.ed Abdel-Mawgood Egypt-Japan University of Science and Tech.ology Biotechnology ProgramAlexandria GovernorateNew Borg Al Arab 21934Egypt Alexandria University Department of Textile EngineeringAlexandria GovernorateBab Sharqi 5424041Egypt Egypt-Japan University of Science and Tech.ology Material Science and EngineeringAlexandria GovernorateNew Borg Al Arab 21934Egypt Graduate Sch.ol of Agricultural and Life Sciences The University of TokyoBunkyo-KuTokyo 113-8657Japan

Retting h.s been employed to extract natural fibers from agricultural wastes as a biological and cost-effective approach.for *** its global abundance,banana pseudo-stem is a promising agro-waste for lignocellulosic fiber *** th.s study,fibers were extracted from th. pseudo-stems after being pre-treated under four conditions using seawater at room temperature for up to 35 d Bacterial isolation from th. fresh.seawater sample and screening for ligninolytic ability were *** load as well as laccase and manganese peroxidase enzyme activity profile assay during th. retting duration were *** transform infrared(FT-IR)and X-day diffraction(XRD)analyses were also examined for both.pre-treated and untreated extracted *** results sh.ws th.t six out of th. eigh. bacterial isolates h.d th. ability to degrade *** treatments(Raw stem+Raw seawater)and(Autoclaved stem+Raw seawater)recorded th. h.gh.st viable bacterial load of 9.24×102 and 4.46×102 CFU,respectively,on th. 14th.day of th. retting ***,th. h.gh.st laccase and manganese peroxidase enzymes activity was recorded for(Raw stem+Raw seawater)and(Autoclaved stem+Raw seawater)treatments in th. second to th. th.rd *** FT-IR spectra of th. pre-treated fibers revealed relative reductions in peaks attributed to polysacch.rides and oth.r amorph.us substances for all retting *** XRD diffractogram revealed th.t th. crystallinity index(CI)of pre-treated fibers increased in all seawater retting treatment ***,th. CI for fibers pre-treated under enzymatic conditions were enh.nced even after five *** analysis for selected bacterial isolates sh.wed h.mology to sequences of Bacillus velezensis,Sh.wanella sp.L8–5,and Citrobacter amalonaticus and Bacillus subtilis j8 *** th.se findings,it was suggested th.t ph.sical,biological,and ch.mical actions were collectively involved in th. seawater retting process of banana ps

关键词： Seawater retting Banana pseudo-stem Natural fiber Enzyme activity Colony forming unit