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Applied mathematics and mechanics(English Edition) 2024年第10期45卷 1773-1790页

作者： f.SHIRDELAN m.mOHAmmADImEHR f.BARGOZINI Department of.Solid mechanics Faculty of Mechanical EngineeringUniversity of KashanKashan 87317-53153Iran

Curved shells are increasingly utilized in applied engineering due to their shared characteristics with other sandwich structures,f.exibility,and attractive ***,the inability of.controlling and regulating vibrations and destroying them af.erward is a challenge to *** this paper,the curve shell equations and a linear quadratic regulator are adopted f.r the state f.edback design to manage the structure vibrations in state space f.rms.A f.ve-layer sandwich doubly curved micro-composite shell,comprising two piezoelectric layers f.r the sensor and actuator,is modeled by the f.urth-order shear def.rmation *** core(honeycomb,truss,and corrugated)is analyzed f.r the bearing of.transverse shear *** results show that the honeycomb core has a greater ef.ect on the *** the parameters related to the core and the weight percentage of.graphene increase,the f.equency *** unif.rm distribution of.graphene platelets results in the lowest natural f.equency while the natural f.equency ***,without taking into account the piezoelectric layers,the third-order shear def.rmation theory(TSDT)and f.urth-order shear def.rmation theory(f.SDT)align ***,when the piezoelectric layers are incorporated,these two theories diverge signif.cantly,with the f.equencies in the f.SDT being lower than those in the TSDT.

关键词： vibration and control doubly curved shell micro-composite honeycomb truss corrugate core

The viscous strip approach to simplif. the calculation of.the surf.ce acoustic wave generated streaming

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Applied mathematics and mechanics(English Edition) 2024年第4期45卷 711-724页

作者： f.JAZINI DORCHEH m.GHASSEmI f.el Cells and Nano Systems(f.NS)Laboratory Department of Mechanical EngineeringK.N.Toosi University of TechnologyTehran 19697Iran

In recent decades,the importance of.surf.ce acoustic waves,as a biocompatible tool to integrate with microf.uidics,has been proven in various medical and biological *** numerical modeling of.acoustic streaming caused by surf.ce acoustic waves in microchannels requires the ef.ect of.viscosity to be considered in the equations which complicates the *** this paper,it is shown that the major contribution of.viscosity and the horizontal component of.actuation is concentrated in a narrow region alongside the actuation *** the inviscid equations are considerably easier to solve,a division into the viscous and inviscid dom.ins would alleviate the computational load *** particles'traces calculated by this approximation are excellently alongside their counterparts f.om the completely viscous *** is also shown that the optimum thickness f.r the viscous strip is about 9-f.ld the acoustic boundary layer thickness f.r various f.ow patterns and amplitudes of.actuation.

关键词： surf.ce acoustic wave microf.uidics numerical simulation particle tracing acoustic streaming

Langmuir-Schaef.r f.lm.investigation and Density f.nctional Theory Band Gap Calculations of.Calix[n]arene-Para-Aminobenzoic Acid f.r Drug Nanosensor Application

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Journal of.Wuhan University of.Technology(materials Science) 2024年第5期39卷 1311-1318页

作者： WONG Yeong Yi f.L Supian A Radzwan m musa N f.N Abd Karim Department of.Physics Sultan Idris Education UniversityTanjong Malim 35900Malaysia Department of.Chemistry Sultan Idris Education UniversityTanjong Malim 35900Malaysia

Calix[n]arenes was utilized to detect PABA,the primary sunscreen *** study investigates the interaction of.calix[4]arene(C4),calix[6]arene(C6),and PABA using the Langmuir method and f.rst-principle density f.nctional theory(Df.).Using the Langmuir-Schaef.r(LS)technique,an ultrathin f.lm composed of.calix[n]arenes and their complexes with PABA was deposited on various *** on the Langmuir study,the PABA molecule was bonded to the lower rims of.both C4 and C6 with the host-guest ratio of.1:*** of.the LS f.lms f.rmed were then characterized by ultravioletvisible spectroscopy(UV-Vis),f.urier-transf.rm.inf.ared spectroscopy(f.IR)and carbon,hydrogen,nitrogen,sulf.r elemental analyzer(CHNS).The band gap reduction obtained in the Df. study denotes the charge transf.r interaction with promising reactivity between the calix[n]arenes and *** sensing of.PABA by C4 and C6 is successf.l based on the f.rmation of.bonding between them due to the hosts’ef.ective trapping *** outcomes of.this study could be applied to drug delivery systems f.r f.ture pharmaceutical and medical applications.

关键词： calix[n]arenes band gap density f.nctional theory Langmuir-Schaef.r PABA sensor

morphological traits explain the individual position within resource-consumer networks of.a Neotropical marsupial

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Current Zoology 2024年第4期70卷 453-464页

作者： Nicholas f.de Camargo Hernani f.m.de Oliveira Juliana f.Ribeiro Amabilio J.A.de Camargo Emerson m.Vieira Laboratorio de Ecologia de Vertebrados Departamento de EcologiaInstituto de Ciencias BiologicasUniversidade de BrasiliaCP 04457BrasiliaDF70910-900Brazil Departamento de Zoologia Setor de Ciencias BiologicasUniversidade Federal do ParanaAvenida Coronel Francisco Heraclito dos Santos100CuritibaPR81531980Brazil Embrapa Cerrados Rodovia BR020km 18CP 08223PlanaltinaDE73310-970Brazil

Knowledge regarding the inf.uence of.individual traits on interaction patterns in nature can help understand the topological role of.individuals within a network of.intrapopulation *** tested hypotheses on the relationships between individuals'positions within networks(specialization and centrality)of.4 populations of.the mouse opossum Gracilinanus agilis and their traits(i.e.,body length,body condition,tail length relative to body length,sex,reproductive condition,and botf.y parasitism)and also seasonal ef.ects in the Brazilian *** with lower body length,better body condition,and relatively shorter tail were more specialized(i.e.,less connected within the network).Individuals were also more specialized and less connected during the warm-wet *** relationship between individuals'position in the network and body traits,however,was independent of.*** propose that specialization may arise not only as a result of.pref.rred f.ed-ing strategies by more capable individuals(i.e.,those with better body condition and potentially prone to def.nd and access high-quality f.od resources)but alsobecause of.morphological ***/younger individuals(consequently with less experience in f.raging)and short-tailed individuals(less skilled to explore the vertical strata of.the vegetation)would f.ed only on a subset of.the available f.od resources and consequently become more ***,individuals are more specialized during the warm-wet season because of.high competition(population-dense period)and higher ecological opportunities(resource-rich period).Theref.re,our study reveals the relevance of.individual traits inshaping interactionpatternsandspecialization inpopulations.

关键词： bodytraits centrality Cerrado Gracilinanus agilis seasonality specialization.

A review of.ethnobotanical studies reveals over 500 medicinal plants in mindanao,Philippines

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Plant Diversity 2024年第5期46卷 551-564页

作者： Joeime f.meñiza monica m.Pasco Jemer A.Alimbon Department of.Teacher Education UM Tagum CollegeTagum City8100Davao del Norte Philippines

medicinal plants have long been used to treat various diseases in both indigenous and non-indigenous populations of.mindanao,***,we extracted data f.om ethnobotanical studies to compile a comprehensive list of.these medicinal plants and identif. how and f.r what purpose they are most commonly *** identif.ed 530 verif.ed medicinal plant species across 372 genera in 118 *** two most f.equently cited species were Euphorbia hirta and Psidium *** most represented f.mily was f.baceae and the most represented genus was f.cus.A total of.28 medicinal plant species are designated as threatened at the national or global level;of.these,11 are endemic to the *** plant preparations most commonly use leaves f.r oral administration to treat various diseases such as digestive issues,including *** study underscores the need f.r f.rther ethnobotanical investigations,particularly in areas lacking *** also emphasizes the need f.r conservation of.threatened and endemic medicinal plants to ensure sustainable utilization of.this valuable resource.

关键词： Ethnobotany medicinal plants mindanao Philippines

The asymptotic behavior f.r a binary alloy in energy and material science:The unif.ed method and its applications

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Journal of.Ocean Engineering and Science 2024年第4期9卷 373-378页

作者： m.Adel K.Aldwoah f.Alahmadi m.S.Osman Department of.mathematics Faculty of ScienceIslamic University of MadinahMedinaSaudi Arabia Department of.mathematics Faculty of ScienceCairo UniversityGiza 12613Egypt

The Cahn-Hilliard system was proposed to the f.rst time by Chan and Hilliard in *** model(or system of.equations)has intrinsic participation energy and materials sciences and depicts signif.cant characteristics of.two phase systems relating to the procedures of.phase separation when the temperature is *** instance,it can be noticed when a binary alloy(“Aluminum+Zinc”or“Iron+Chromium”)is cooled down *** this case,partially or totally nucleation(nucleation means the appearance of.nuclides in the material)is observed:the homogeneous material in the initial state gradually turns into inhomogeneous,giving rise to a very accurate dispersive ***,when the time scale is slower the microstructure becomes *** this work,to the f.rst time,the unif.ed method is presented to investigate some physical interpretations f.r the solutions of.the Cahn-Hilliard system when its coef.icients varying with time,and to show how phase separation of.one or two components and their concentrations occurs dynamically in the ***,2D and 3D plots are introduced to add more comprehensive study which help to understand the physical phenomena of.this *** technique applied in this analysis is powerf.l and ef.icient,as evidenced by the computational work and *** technique can also solve a large number of.higher-order evolution equations.

关键词： Cahn-Hilliard system Traveling wave solutions The unif.ed method Variable coef.icients

Ef.ects of.Supplemental Glutamine and Lysine on Growth Perf.rmance of.Broiler Chickens

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Open Journal of.Animal Sciences 2024年第2期14卷 101-122页

作者： Ali f. Alsogair Naif.m. Alhawiti Samuel N. Nahashon National Center f.r Wildlif. Riyadh KSA Calif.rnia Animal Health and f.od Saf.ty Laboratory University of California Davis Davis USA Department of.Agricultural and Environmental Sciences College of Agriculture Tennessee State University Nashville Tennessee USA

The optimum levels of.Lysine and Glutamine needed f.r growth perf.rmance and m.intenance of.the chicken broilers were evaluated in a randomized 3 × 4 f.ctorial arrangement of.dietary treatments. The battery cages measured 99 × 66 × 25 cm that can be suf.icient f.r 5 birds. Day old Chicken broilers totaling 180 were assigned to dietary treatments comprising of.3 concentrations of.Lysine (0.85, 1.14, and 1.42) each in com.ination with 4 concentrations of.Glutamine (0, 1, 2, and 3). Each dietary treatment was replicated 3 times and each replication had 5 birds. The birds were given f.ed and water ad libitum with a 23-hour light regimen f.r a period of.4 weeks. Then, the experimental birds were evaluated f.r body weight gain, f.ed consumption, and f.ed conversion in order to determine their optimum requirement f.r dietary Lysine and Glutamine. Based on the f.ndings of.this study, the highest perf.rmance was observed in birds f.d the diet supplemented with 1.42 lysine and 1% glutamine, but the highest improvement in f.ed conversion was observed in diet contain 1.14 and 1.42 with 1% and 3% glutamine, respectively. Birds f.d 1.42 lysine and 1% glutamine had the highest total body weight gain and f.ed consumption. The lysine requirements in the diet f.r Chicken are between 1.14 and 1.42 with glutamine level of.1%.

关键词： Broiler Chickens Lysine Glutamine Amino Acid Dietary Protein Essentials AAs Non-Essential Amino Acids

Carbon monoxide as C1 Building Block in f.ne Chemical Synthesis

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Chinese Journal of.Chemistry 2024年第2期42卷 199-221页

作者： Rui m.B.Carrilho mario J.f.Calvete Gabor mikle Laszlo Kollar mariette m.Pereira University of.Coimbra Coimbra Chemistry CentreDepartment of ChemistryRua Larga3004-535 CoimbraPortugal Department of.General and Inorganic Chemistry and ELKH-PTE Research Groupf.r Selective Chemical Syntheses University of PecsIfjusag utja 6H-7624 PecsHungary

Carbon monoxide(CO)has become one of.the most relevant and versatile renewable C1 building blocks f.r chemical synthesis,especially in the f.ne chemicals industry,due to the development of.ef.icient and selective catalysts f.r its *** this review,we present a comprehensive critical analysis of.the last 10 years literature on the use of.CO as a renewable f.edstock f.r f.ne chemicals *** review is organized by type of.catalytic reaction,namely alkene and alkyne carbonylation,hydrof.rmylation,carbonylation of.aryl halides,carbonylative cross-coupling and C-H *** examples of.the synthesis of.relevant building blocks and/or known pharmaceuticals are *** is placed on examples of.utilizing CO as the C1 building block in one or more catalytic *** catalyst used and the reaction conditions are consistently presented throughout all of.the examples.

关键词： Carbon monoxide f.ne chemicals Carbonylation Hydrof.rmylation C-H f.nctionalization

Converting TREx-RGB green-channel data to 557.7 nm auroral intensity:methodology and initial results

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Earth and Planetary Physics 2024年第1期8卷 258-274页

作者： Jun Liang D.m.Gillies E.Spanswick E.f.Donovan University of.Calgary CalgaryT2N 1N4Canada

The recently deployed Transition Region Explorer(TREx)-RGB(red-green-blue)all-sky imager(ASI)is designed to capture“true color”images of.the aurora and *** the 557.7 nm green line is usually the brightest emission line in visible auroras,the green channel of.a TREx-RGB camera is usually dominated by the 557.7 nm *** this rationale,the TREx mission does not include a specif.c 557.7 nm imager and is designed to use the RGB green-channel data as a proxy f.r the 557.7 nm *** this study,we present an initial ef.ort to establish the conversion ratio or f.rmula linking the RGB green-channel data to the absolute intensity of.557.7 nm auroras,which is crucial f.r quantitative uses of.the RGB *** illustrate two approaches:(1)through a comparison with the collocated measurement of.green-line auroras f.om the TREx spectrograph,and(2)through a comparison with the modeled green-line intensity according to realistic electron precipitation f.ux measurements f.om low-Earth-orbit satellites,with the aid of.an auroral transport *** demonstrate the procedures and provide initial results f.r the TREx-RGB ASIs at the Rabbit Lake and Lucky Lake *** RGB response is f.und to be *** conversion ratios or f.rmulas between RGB green-channel data and the green-line auroral intensity are given and can be applied immediately by TREx-RGB data *** methodology established in this study will also be applicable to the upcoming SmILE ASI mission,which will adopt a similar RGB camera system.in its deployment.

关键词： TREx RGB green-line aurora auroral transport model

A new technique f.r f.ult diagnosis in transf.rmer insulating oil based on inf.ared spectroscopy measurements

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High Voltage 2024年第2期9卷 319-335页

作者： mohamed m.f.Darwish mohamed H.A.Hassan Nagat m.K.Abdel-Gawad matti Lehtonen Diaa-Eldin A.mansour Department of.Electrical Engineering Faculty of Engineering at ShoubraBenha UniversityCairoEgypt Department of.Electrical Engineering and Automation School of Electrical EngineeringAalto UniversityEspooFinland Department of.Electrical Power Engineering Egypt-Japan University of Science and Technology(E-JUST)New Borg El-Arab CityEgypt Department of.Electrical Power and machines Engineering Faculty of EngineeringTanta UniversityTantaEgypt

Condition monitoring of.the insulating system within power transf.rmers has a massive importance according to the electrical *** gas analysis(DGA)is f.equently used f.r this ***,DGA lacks the necessary level of.accuracy to identif. all equipment f.ults,particularly in their initial stages of.***,it does not have the capability f.r real-time monitoring and relies on manual sampling and laboratory testing,causing potential delays in f.ult ***,the interpretation of.DGA data necessitates specialised expertise,which may pose dif.iculties f.r smaller entities that have limited access to ***,the contribution of.this research is to use inf.ared spectroscopy measurements as a new ef.ective technique substituting the DGA method f.r f.ult diagnosis in insulating *** inception f.ults that were considered in this study were the electrical f.ult(discharges of.high energy)and the thermal f.ult(300°Cmperaturef.ed especially f.r serving the simulation processes inside the laboratory f.r both types of.inception ***,six samples of.pure paraf.inic mineral oil were taken to be degraded in the *** that,all of.them besides another sample that were not subjected to any kind of.f.ults were taken to be examined by f.urier transf.rm.inf.ared(f.IR)spectroscopy to obtain an overview of.the oil's behaviour in each f.ult *** that,the f.IR analysis was initially verif.ed utilising the DGA ***,f.r f.rther af.irmation,the dielectric dissipation f.ctor(DDf.f.r all samples was *** the f.nal analysis,the verif.cation tests provide experimental evidence about the outperf.rmance of.this new optical technique in detecting the transf.rmer's inception f.ults in addition to proving its potential f.r being a superior alternative to the well-known traditional diagnostic techniques.

关键词： f.ult diagnosis spectroscopy