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Stability analysis o. a time-delayed Van der Po.–Helmho.tz–Duffing o.cillato. in fractal space with a no.-perturbative appro.ch

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Co.municatio.s in Theo.etical Physics 2024年第4期76卷 22-31页

作者： Yusry o.El-Dib Department o. Mathematics Faculty of EducationAin Shams UniversityRoxyCairoEgypt

The time-delayed fractal Van der Po.–Helmho.tz–Duffing(VPHD)o.cillato. is the subject o. this paper,which explo.es its mechanisms and highlights its stability *** time-delayed techno.o.ies are currently garnering significant attentio.,the fo.us o. this research remains crucially relevant.A no.-perturbative appro.ch is emplo.ed to.refine and set the stage fo. the system under *** inno.ative metho.o.o.ies intro.uced yield an equivalent linear differential equatio.,mirro.ing the inherent no.linearities o. the ***,the inco.po.atio. o. quadratic no.linearity into.the frequency fo.mula represents a cutting-edge *** analytical so.utio.'s validity is co.ro.o.ated using a numerical *** co.ditio.s are ascertained thro.gh the residual Galerkin ***,it is o.served that the delay parameter,in the co.text o. the fractal system,reverses its stabilizing influence,impacting bo.h the amplitude o. delayed velo.ity and the *** analytical so.utio.'s precisio. is undersco.ed by its clo.e alignment with numerical ***,the study reveals that fractal characteristics emulate damping *** its applicability acro.s diverse no.linear dynamical systems,this no.-perturbative appro.ch emerges as a pro.ising avenue fo. future research.

关键词： Van der Po.-Helmho.tz-Duffing o.cillato. fractal space time-delay no.-perturbative appro.ch stability analysis El-Dib's frequency fo.mula

Valo.izatio. o. Tree Bark-Derived Suberin in Applicatio.s fo. the Bio.Based Co.po.ites Industry–A Recent Review

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Jo.rnal o. Renewable Materials 2024年第6期12卷 1029-1042页

作者： Aleksandra Jeżo Institute o. Wo.d Sciences and Furniture SGGWNowoursynowska St.159Warsaw02-776Poland

Bark extracts are sustainable so.rces o. bio.o.ymers and ho.d great pro.ise fo. replacing fo.sil fuel-based po.ymers,fo. example,in wo.d-based *** additio. to.primary and seco.dary metabo.ites,tree bark also.co.tains suberin,which plays a majo. ro.e in pro.ecting the tree fro. enviro.mental *** is a natural aliphatic-aro.atic cro.s-linked po.yester present in the cell walls o. bo.h no.mal and damaged external tissues,the main co.po.ent o. which are lo.g-chain aliphatic *** main ro.e as a plant ingredient is to.pro.ect against micro.io.o.ical facto.s and water *** o. the mo.t impo.tant suberin mo.o.ers are suberin fatty acids,kno.n fo. their hydro.ho.ic and barrier ***,due to.the diverse chemical co.po.itio. o. suberin,it is an attractive alternative to.hydro.arbo.-based *** its po.ential is reco.nized,it is no. widely used in bio.o.po.ites techno.o.y,including wo.d-based co.po.ites and the po.ymer *** article will discuss the current kno.ledge abo.t the po.ential o. suberin and its co.po.ents in bio.o.po.ites techno.o.y,which will include surface finishes,co.po.ite adhesives and po.ymer blends.

关键词： Suberin suberinic acids wo.d co.po.ites bio.o.po.ites bio.o.yester

Making to.o.o.ical pro.ein links using enzymatic reactio.s

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Natio.al Science Review 2024年第3期11卷 50-51页

作者： Ro.er Castells-Graells To.d o.Yeates Department o. Chemistry and Bio.hemistry University of California UCLA-Do. Institute fo. Geno.ics and Pro.eo.ics

Pro.eins are exceedingly co.plex mo.ecules tho.gh, at their heart, they are essentially linear po.ymers. Pull at their ends and o.e o.tains an extended backbo.e. While that is true in mo.t cases, so.e natural pro.eins... 详细信息

关键词： DESIGN

A synthetic micro.ial co.munity used as a bio.no.ulant can o.erco.e rice pro.uctio. co.straints in acid so.ls

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Science China(Life Sciences) 2024年第5期67卷 1085-1086页

作者： Maureen o.Callaghan Shengjing Shi Resilient Agriculture Gro.p AgResearchLincolnChristcurch 8140New Zealand

A custo.ised synthetic micro.ial co.munity(SynCo.)co.po.ed o. carefully selected rhizo.phere-co.petent bacterial strains impro.ed rice gro.th,yield and resistance to.so.l acidity and Al to.icity.

关键词： so.l so.ls rhizo.phere

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Harnessing the po.er o. pericytes and hypo.ia-inducible facto.-1 to.mo.ulate stro.e o.tco.e

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Neural Regeneratio. Research 2024年第3期19卷 473-474页

作者： o.o.ara o.o.unsho.a Chih-Chieh Tsao Institute o. Veterinary Physio.o.y Vetsuisse FacultyUniversity of ZurichZurichSwitzerland

The human brain has exceedingly high metabo.ic *** cerebral vasculature has the critical task o. pro.iding sufficient blo.d supply to.meet this *** sudden interruptio. o. blo.d flo. to.the brain,as o.served during ischemic stro.e,results in acute neuro.o.ical injury with devastating co.sequences-a high rate o. adult disability and *** stro.e is thus a vascular diso.der with a dramatic neuro.o.ical *** is an urgent need fo. mo.e effective disease management to.co.bat stro.e as current treatment paradigms,fo.using o. vascular recanalizatio. and neuro.ro.ectio.,have o.ly limited clinical *** accumulating data suggests successful lo.g-term neuro.ro.ectio. is unlikely to.be achievable witho.t a functio.al micro.ascular netwo.k,strategies that reduce endo.helial dysfunctio. co.ld be ***,very recent evidence highlighted herein suggests pro.ecting the humble pericyte may be a new appro.ch to.reaching this go.l.

关键词： co.sequences exceeding herein

Assimilatio. o. Go.S-R Geo.tatio.ary Lightning Mapper Flash Extent Density Data in GSI 3DVar, EnKF, and Hybrid En3DVar fo. the Analysis and Sho.t-Term Fo.ecast o. a Supercell Sto.m Case

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Advances in Atmo.pheric Sciences 2024年第2期41卷 263-277页

作者： Ro.g Ko.G Ming XUE Edward R.MANSELL Chengsi LIU Alexandre o.FIERRo Center fo. Analysis and Predictio. o. Sto.ms Norman Oklahoma 73072U.S.A University o. o.laho.a Norman Oklahoma 73072U.S.A No.A/Natio.al Severe Sto.ms Labo.ato.y NormanOklahoma 73072U.S A.4Zentralanstalt für Meteo.o.o.ie und Geo.ynamik Department of Forecasting Models-ZAMGVienna 1190Austria

Capabilities to.assimilate Geo.tatio.ary o.eratio.al Enviro.mental Satellite “R-series ”(Go.S-R) Geo.tatio.ary Lightning Mapper(GLM) flash extent density(FED) data within the o.eratio.al Gridpo.nt Statistical Interpo.atio. ensemble Kalman filter(GSI-EnKF) framewo.k were previo.sly develo.ed and tested with a meso.cale co.vective system(MCS) case. In this study, such capabilities are further develo.ed to.assimilate Go.S GLM FED data within the GSI ensemble-variatio.al(EnVar) hybrid data assimilatio.(DA) framewo.k. The results o. assimilating the GLM FED data using 3DVar, and pure En3DVar(PEn3DVar, using 100% ensemble co.ariance and no.static co.ariance) are co.pared with tho.e o. EnKF/DfEnKF fo. a supercell sto.m case. The fo.us o. this study is to.validate the co.rectness and evaluate the perfo.mance o. the new implementatio. rather than co.paring the perfo.mance o. FED DA amo.g different DA schemes. o.ly the results o. 3DVar and pEn3DVar are examined and co.pared with EnKF/DfEnKF. Assimilatio. o. a single FED o.servatio. sho.s that the magnitude and ho.izo.tal extent o. the analysis increments fro. PEn3DVar are generally larger than fro. EnKF, which is mainly caused by using different lo.alizatio. strategies in EnFK/DfEnKF and PEn3DVar as well as the integratio. limits o. the graupel mass in the o.servatio. o.erato.. o.erall, the fo.ecast perfo.mance o. PEn3DVar is co.parable to.EnKF/DfEnKF, suggesting co.rect implementatio..

关键词： Go.S-R lightning data assimilatio. EnKF EnVar

Mutatio.s o. vo.tage-gated so.ium channel co.tribute to.pyrethro.d resistance in Pano.ychus citri

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Insect Science 2024年第3期31卷 803-816页

作者： Deng Pan Qiu-Juan Luo.Andrias o.o.Reilly Guo.Rui Yuan Jin-Jun Wang Wei Do. Key Labo.ato.y o. Ento.o.o.y and Pest Co.tro. Engineering College of Plant ProtectionAcademy of Agricultural SciencesSouthwest UniversityChongqingChina Key Labo.ato.y o. Agricultural Bio.afety and Green Pro.uctio. o. Upper Yangtze River(Ministry o. Educatio.) Academy of Agricultural SciencesSouthwest UniversityChongqingChina Scho.l o. Bio.o.ical and Enviro.mental Sciences Liverpool John Moores UniversityLiverpoolUK

Insecticide resistance in Pano.ychus citri is a majo. o.stacle to.mite co.tro. in citrus *** insecticides are co.tinually used to.co.tro. mites in China,altho.gh resistance to.pyrethro.ds has evo.ved in so.e ***,the resistance to.the pyrethro.d fenpro.athrin was investigated and 7 o.t o. 8 field-co.lected po.ulatio.s o. P citri exhibited a high level o. resistance,ranging fro. 171-fo.d to.15391-fo.d higher than the susceptible(SS)co.pariso. *** vo.tage-gated so.ium channel(VGSC)mutatio.s were identified in the tested po.ulatio.s:L1031V,F1747L,and *** sequencing was used to.evaluate the frequency o. these mutatio.s in the 19 field po.ulatio.s.L1031V and F1751I were present in all po.ulatio.s at frequencies o. 11.6%-82.1%and 0.5%-31.8%,respectively,whereas the F1747L mutatio. was o.ly present in 12 po.ulatio.s fro. Cho.gqing,Sichuan,Guangxi,and Yunnan *** o. these mutatio.s singly o. in co.binatio. into.transgenic flies significantly increased their resistance to.fenpro.athrin and these flies also.exhibited reduced mo.tality after expo.ure to.the pyrethro.ds permethrin andβ-*** citri VGSC ho.o.o.y mo.eling and ligand do.king indicate that F1747 and F1751 fo.m direct binding co.tacts with pyrethro.ds,which are lo.t with mutatio.,whereas L1031 mutatio. may diminish pyrethro.d effects thro.gh an allo.teric ***,the results pro.ide mo.ecular markers fo. mo.ito.ing pest resistance to.pyrethro.ds and o.fer new insights into.the basis o. pyrethro.d actio.s o. so.ium channels.

关键词： amplico. sequencing kdr mutatio. mo.ecular do.king Pano.ychus citri pyrethro.d resistance transgenic flies

Temperature Trends and Accumulatio. o. Chill Ho.rs, Chill Units, and Chill Po.tio.s in So.th Caro.ina

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Atmo.pheric and Climate Sciences 2024年第2期14卷 173-190页

作者： Jo.é o. Payero Edisto.Research and Educatio. Center Clemson University Blackville SC USA Department o. Agricultural Sciences Clemson University Clemson SC USA

There is co.siderable co.cern abo.t the po.ential impact o. climate change o. agriculture, such as the accumulatio. o. chilling ho.rs needed to.break the do.mancy o. many perennial plants, like fruit trees. Therefo.e, this study aimed to.determine if there had been a significant change in air temperatures and chill ho.rs, chill units, and chill po.tio. accumulatio. in So.th Caro.ina o.er the last two.decades. Two.decades o. daily maximum (Tmax) and minimum (Tmin) air temperature reco.ds were o.tained fro. weather statio.s in thirty-o.e co.nties in So.th Caro.ina. Ho.rly temperature data, reco.structed fro. the daily data, were used to.calculate the daily and annual chill ho.rs, chill units, and chill po.tio.s accumulatio. using fo.r different chill mo.els fo. each lo.atio. and year. The chill mo.els included the T(t) °C mo.el, the 0°C °C mo.el, the Utah mo.el, and the Dynamic mo.el. Fo. each co.nty, regressio. analyses were co.ducted to.evaluate the histo.ical trends. Despite year-to.year variability, the tendency was a statistically significant (α = 0.05) increase in air temperature, averaging 0.089°C per year fo. 20 o.t o. 31 co.nties in So.th Caro.ina. The o.her 11 co.nties had no.significant change in temperature. The average temperature increase in the 31 co.nties was 0.072°C per year. The temperature increase resulted in a decrease in annual chill accumulatio. during the fall to.spring, averaging 17.7 chill ho.rs, 8.6 chill ho.rs, 17.0 chill units, and 0.40 chill po.tio.s per year calculated with the T(t) °C, 0°C °C, Utah, and Dynamic mo.els, respectively. Ho.ever, whether this decrease in chill values was statistically significant o. no. depended o. the chill mo.el used. This study did no. investigate the cause o. the o.served histo.ical trends in temperature and chill accumulatio.. Still, if the trends co.tinue, they co.ld significantly impact the future o. the temperate fruit tree industry in the state.

关键词： Chill Ho.rs Chill Units Chill Po.tio.s Temperature Fruit Trees Climate Change Do.mancy

A Pro.edure fo. Trisecting an Acute Angle (Metho. 2)

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Advances in Pure Mathematics 2024年第4期14卷 204-213页

作者： Lyndo. o. Barto. Department o. Math and Physics Delaware State University Dover USA

This paper presents an alternate graphical pro.edure (Metho. 2), to.that presented in earlier publicatio.s entitled, “A Pro.edure fo. Trisecting an Acute Angle” and “A Key to.So.ving the Angle Trisectio. Pro.lem”. The pro.edure, when applied to.the 30˚ and 60˚ angles that have been “pro.en” to.be no.trisectable and the 45˚ benchmark angle that is kno.n to.be trisectable, in each case pro.uced a co.structio. having an identical angular relatio.ship with Archimedes’ Co.structio., as in Sectio. 2 o. THEo.Y o. this paper, where the required trisectio. angle was fo.nd to.be o.e-third o. its respective angle (i.e. DE’MA = 1/3 DE’CG). Fo. example, the trisectio. angle fo. the 30˚, 45˚ and 60˚ angles were 10.00000˚, 15.00000˚, and 20.00000˚, respectively, and Sectio. 5 o. PRo.F in this paper. Therefo.e, based o. this identical angular relatio.ship and the numerical results (i.e. to.five decimal places), which represent the highest degree o. accuracy and precisio. attainable by The Geo.eter’s Sketch Pad so.tware, o.e can o.ly co.clude that no. o.ly the geo.etric requirements fo. arriving at an exact trisectio. o. the 30˚ and 60˚ angle (which have been “pro.en” to.be no.-trisectable) have been met, but also. the co.structio. is valid fo. any arbitrary acute angle, despite theo.etical pro.fs to.the co.trary by Wantzel, Dudley, and o.hers.

关键词： Archimedes’ Co.structio. Co.lege Geo.etry Co.lege Mathematics Angle Trisectio. Famo.s Pro.lems in Mathematics Mechanism Analysis Geo.eter’s Sketch Pad