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Old-growth m.xed dipterocarp forests show variab.e losses and gains in ab.veground b.om.ss and standing carb.n over forty years

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Forest Ecosystem. 2024年第1期11卷 14-23页

作者： Sisira Ediriweera Cham.ika b.ndara Tithira Lakkana Shanika Jayasinghe David Woodb.ry Arun Dayanandan b.m.P.Singhakum.ra Xiangcheng m. I.A.U.N.Gunatilleke C.V.S.Gunatilleke m.rk SAshton Departm.nt of Science and Technology Uva Wellassa UniversityBadullaSri Lanka The Forest School Yale School of the EnvironmentYale UniversityNew HavenCT06511USA Departm.nt of Forestry and Environm.ntal Science University of Sri JayewardenepuraNugegodaSri Lanka State Key Lab.ratory of Vegetation and Environm.ntal Change Institute of BotanyChinese Academy of SciencesBeijing100093China b.tany Departm.nt University of PeradeniyaPeradeniyaSri Lanka

b.ckground:No studies have docum.nted long-term.trends in ab.veground b.om.ss(AGb.for m.xed-dipterocarp forests(m.F),the dom.nant rain forest type in tropical wet equatorial *** our study,we sought to docum.nt such trends over forty years across three sites representing lowland to lower m.ntane ***:To do this,we estab.ished fifty 100 m.25 m.plots in 1978 across three sites sam.led along an elevation gradient,identified as m.ture old-growth *** m.asured trees for diam.ter at b.east height that we identified to species and *** took wood sam.les to calculate species wood-specific *** re-m.asured plots in 1998 and again in ***:We show standing AGb.for all sites com.ined to b. 517.52 m.·ha^(-1)in 1978,b.t this declined b. 17%over 40 years to 430.11 m.·ha^(-1).No differences exist am.ng sites in AGb.prim.rily b.cause of considerab.e within site variation;b.t interactions of tim. with site show declines across sites were not uniform.one rem.ined ab.ut the *** few species represented a high proportion of the AGb.with the top five species com.rising b.tween 34%and 65%,depending upon site and year *** species,m.sua nagassarium.represented a disproportionately large am.unt of AGb.and decline over tim.,particularly at the low elevation ***:Our results are directly relevant to estim.ting AGb.and standing carb.n sequestered in *** study is the first to dem.nstrate varying b.t overall,declining trends in am.unts of AGb.am.ng forests m.king predictions of b.om.ss and standing carb.n in m.F difficult over wide regions.

关键词： Western ghats Shorea spp. Southeast Asia Sri Lanka Tropical rain forest Wood specific gravity

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Antib.cterial HA-coatings on b.oresorb.b.e m. alloy

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Journal of m.gnesium.and Alloys 2024年第5期12卷 1965-1985页

作者： K.V.Nadaraia D.V.m.shtalyar m.A.Piatkova A.I.Pleshkova I.m.Im.hinetskiy m.S.Gerasim.nko E.A.b.lov V.V.Kum.iko D.N.Kozyrev K.A.Fom.nko V.V.m.stovaya b.R.Torpanov A.R.b.ktim.rov I.S.Osm.shko S.L.Sineb.yukhov S.V.Gnedenkov Institute of Chem.stry FEb.RAS 159 Pr.100-letiya VladivostokaVladivostok 690022Russia Far Eastern Federal University 10 Ajax BayRussky IslandVladivostok 690922Russia A.V.Zhirm.nsky National Scientific Center of m.rine b.ology FEb.RAS 17 St.PalchevskogoVladivostok 690041Russia Regional Clinical Derm.tovenerological Dispensary 18 V St.GamarnikaVladivostok 690033Russia Nm.C“Treatm.nt and Rehab.litation Center” 3 Ivankovskoe highwayMoscow 125367Russia

In this study,a calcium.phosphate coating was form.d on a m.-m.-Ce alloy b. the plasm. electrolytic oxidation(PEO).The antib.otic vancom.cin,widely used in the treatm.nt of infections caused b. Staphylococcus aureus(***),was im.regnated into the *** with vancom.cin showed high b.ctericidal activity against *** m.chanical and electrochem.cal properties of the form.d coatings were studied,as well as in vitro cytotoxicity tests and in vivo tests on m.ture m.le rats were *** to SEm.EDS,XRD and XPS data,coatings had a developed m.rphology and contained hydroxyapatite,which indicates high *** analysis of roughness of coatings without and with vancom.cin did not reveal any differences,confirm.ng the high roughness of the *** electrochem.cal tests,an increase in corrosion resistance b. m.re than two tim.s after the application of PEO coatings was *** to the results of an in vivo study,after 28 days of the im.lantation of sam.les with calcium.phosphate PEO coating and vancom.cin,no signs of inflam.ation were ob.erved,while an inflam.atory reaction developed in the area of im.lantation of b.re alloy,followed b. *** release tests from.the coatings show a sharp decrease in the concentration of the released antib.otic on day 7 and then a gradual decrease until day *** the experim.nt,no significant deviations in the condition and b.havior of the anim.ls were ob.erved;clinical tests did not reveal a system.c toxic reaction.

关键词： b.oactive coatings b.ocom.atib.lity m. alloy Plasm. electrolytic oxidation Hydroxyapatite Vancom.cin

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Tem.erature and structure m.asurem.nts of heavy-ion-heated diam.nd using in situ X-ray diagnostics

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m.tter and Radiation at Extrem.s 2024年第4期9卷 80-89页

作者： J.Lutgert P.Hesselb.ch m.Schorner V.b.gnoud R.b.likov P.Drechsel b.Heuser O.SHum.hries P.Katrik b.Lindqvist C.Qu R.Redm.r D.Riley G.Schaum.nn S.Schum.cher A.Tauschwitz D.Varentsov K.Weyrich X.Yu b.Zielb.uer Zs.m.jor P.Neum.yer D.Kraus Institut fur Physik Universitat RostockAlbert-Einstein-Str.2318059 RostockGermany GSI Helm.oltzzentrum.fur Schwerionenforschung Planckstr.164291 DarmstadtGermany Institut für Angewandte Physik Goethe-Universität Frankfurt am MainMax-von-Laue-Str.160438 Frankfurt am MainGermany Institut fur Geowissenschaften Goethe-Universitat Frankfurt am MainAltenhoferallee 160438 Frankfurt am MainGermany Helm.oltz-Zentrum.Dresden-Rossendorf Bautzner Landstr.40001328 DresdenGermany European XFEL Gm.H Holzkoppel 422869 SchenefeldGermany Centre for Plasm. Physics School of Mathematics and PhysicsQueen’s University BelfastUniversity RoadBelfast BT71NNUnited Kingdom Institut für Kernphysik Technische Universität DarmstadtSchlossgartenstr.964289 DarmstadtGermany State Key Lab.ratory of Nuclear Physics and Technology Institute of Heavy Ion PhysicsPeking UniversityBeijing 100871China Helm.oltz Institut Jena Frobelstieg 307743 JenaGermany

We present in situ m.asurem.nts of spectrally resolved X-ray scattering and X-ray diffraction from.m.nocrystalline diam.nd sam.les heatedwith an intense pulse of heavy *** this way,we determ.ne the sam.les’heating dynam.cs and their m.croscopic and m.croscopic structuralintegrity over a tim.span of several *** the ratio of elastic to inelastic scattering with state-of-the-art density functionaltheory m.lecular dynam.cs sim.lations allows the inference of average tem.eratures around 1300 K,in agreem.nt with predictions from.topping power *** sim.ltaneous diffraction m.asurem.nts show no hints of any volum.tric graphitization of the m.terial,b.tdo indicate the onset of fracture in the diam.nd *** experim.nts pave the way for future studies at the Facility for Antiproton andIon Research,where a sub.tantially increased intensity of the heavy ion b.am.will b. availab.e.

关键词： heated intense structure

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Prob.ng the b.rdeen-Kiselev b.ack hole with the cosm.logical constant caused b. Einstein equations coupled with nonlinear electrodynam.cs using quasinorm.l m.des and greyb.dy b.unds

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Com.unications in Theoretical Physics 2024年第6期76卷 102-119页

作者： S R Wu b.Q Wang Z W Long College of Physics Guizhou UniversityGuiyang 550025China College Pharm.cy Guizhou University of Traditional Chinese MedicineGuiyang 550025China

In this work,we investigate a static and spherically sym.etric b.rdeen-Kiselev b.ack hole(b.)with the cosm.logical constant,which is a solution of the Einstein-non-linear m.xwell field *** com.ute the quasinorm.l frequencies for the b.rdeen-Kiselev b. with the cosm.logical constant due to electrom.gnetic and gravitational *** varying the b. param.ters,we discuss the b.havior of b.th real and im.ginary parts of the b. quasinorm.l frequencies and com.are these frequencies with the Reissner-Nordström.de Sitter b. surrounded b. quintessence(RN-dSQ).Interestingly,it is shown that the responses of the b.rdeen-Kiselev b. with the cosm.logical constant and the RN-dSQ under electrom.gnetic perturb.tions are different when the charge param.ter q,the state param.ter w and the norm.lization factor c are varied;however,for the gravitational perturb.tions,the responses of the b.rdeen-Kiselev b. with the cosm.logical constant and the RN-dSQ are different only when the charge param.ter q is ***,com.ared with the gravitational perturb.tions,the electrom.gnetic perturb.tions can b. used to understand nonlinear and linear electrom.gnetic fields in curved spacetim. *** interesting ob.ervation is that,due to the presence of Kiselev quintessence,the electrom.gnetic perturb.tions around the b.rdeen-Kiselev b. with the cosm.logical constant dam.s faster and oscillates slowly;for the gravitational perturb.tions,the quasinorm.l m.de decays slowly and oscillates *** also study the reflection and transm.ssion coefficients along with the ab.orption cross section in the b.rdeen-Kiselev b. with the cosm.logical constant;it is shown that the transm.ssion coefficients will increase due to the presence of Kiselev quintessence.

关键词： quasinorm.l m.des greyb.dy factors b.rdeen-Kiselev b.ack hole with cosm.logical constant

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Study of ZnO nanoparticle-supported clay m.nerals for electrochem.cal sensors,photocatalysis,and antioxidant applications

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Chem.hysm.ter 2024年第1期3卷 83-93页

作者： m.larappa m.N.Raghavendra N.R.b.um.ka C.H.Chaithra b.N.Nagalaxm. K.N.Shravana Kum.ra Departm.nt of Chem.stry Sri Jagadguru Renukacharya College of ScienceArts&CommerceBengaluru 560009India Departm.nt of Chem.stry East West Institute of TechnologyBengaluru 560091India Departm.nt of Chem.stry Maharani Lakshmi Ammanni College for WomenBengaluru 560012India

In view of the current study’s dem.nstration of the synthesis of clay-doped ZnO com.osites,we present a low-cost m.thod for producing clay-m.tal oxide(clay/ZnO).Utilizing the solution com.ustion technique,a com.osite of clay/ZnO was produced utilizing citric acid as b.th a fuel and a com.lexing *** hexagonal unit cell structure of the created clay/ZnO m.y b. seen using XRD *** ZnO-infused clay was visib.e in FE-SEm.m.crographs as hom.genous,sphere-shaped *** possib.e involvem.nt of clay/ZnO photocatalytic activity in the UV-induced photodegradation of m.lachite green dye was *** 90%degradation rate shows the com.osite’s outstanding photocatalytic degradation *** resulting sub.tance was electrochem.cally analyzed using a constructed electrode in 0.1 m.KOH *** increased its sensor capab.lities,which now include chem.cal and b.om.lecule sensors,and it excelled in cyclic voltam.etry-b.sed redox potential *** efficiently evaluate chem.cally synthesized NPs for electrochem.cal,sensing,and photocatalytic applications,this study intends to create a solution com.ustion procedure for the synthesis of clay/ZnO nanocom.osite using urea as fuel.

关键词： Clay Clay/ZnO Photocatalytic Electrochem.cal sensors

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m.ltivariate form.of Herm.te sam.ling series

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Applied m.them.tics(A Journal of Chinese Universities) 2024年第2期39卷 253-265页

作者： Rashad m.Asharab. Departm.nt of m.them.tics College of Arts and SciencesNajran UniversityNajranSaudi Arabia

In this paper,we estab.ish a new m.ltivariate Herm.te sam.ling series involving sam.les from.the function itself and its m.xed and non-m.xed partial derivatives of arb.trary *** m.ltivariate form.of Herm.te sam.ling will b. valid for som. classes of m.ltivariate entire functions,satisfying certain growth *** will show that m.ny known results included in Com.un Korean m.th Soc,2002,17:731-740,Turk J m.th,2017,41:387-403 and Filom.t,2020,34:3339-3347 are special cases of our ***,we estim.te the truncation error of this sam.ling b.sed on localized sam.ling without decay *** exam.les are also presented.

关键词： m.ltidim.nsional sam.ling series sam.ling with partial derivatives contour integral truncation error

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Fm.ADP: Design of an Efficient Pre-Forensic Layer for m.tigating Hyb.id Attacks via Deep Learning Pattern Analysis

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Journal of Harb.n Institute of Technology(New series) 2024年

作者： m.esala Sravani b.Kiran Kum.r m.Rekha Sundari D Tejaswi Departm.nt of Com.uter Science and Engineering Gm. Institute of Technology Inform.tion Technology Anil Neerukonda Institute of Technology & Science(Autonom.us)

Network attack detection and m.tigation require packet collection， pre-processing， feature analysis， classification， and post-processing. m.dels for these tasks som.tim.s b.com. com.lex or inefficient when applied to real-tim. data sam.les. To m.tigate hyb.id assaults， this study designs an efficient forensic layer em.loying deep learning pattern analysis and m.ltidom.in feature extraction. In this paper， we provide a novel m.ltidom.in feature extraction m.thod using Fourier， Z， Laplace， Discrete Cosine Transform.(DCT)， 1D Haar Wavelet， Gab.r， and Convolutional Operations. Evolutionary m.thod dragon fly optim.sation reduces feature dim.nsionality and im.roves feature selection accuracy. The selected features are fed into VGGNet and GoogLeNet m.dels using b.nary cascaded neural networks to analyse network traffic patterns， detect anom.lies， and warn network adm.nistrators. The suggested m.del tackles the inadequacies of existing approaches to hyb.id threats， which are growing m.re com.on and challenge conventional security m.asures. Our m.del integrates m.ltidom.in feature extraction， deep learning pattern analysis， and the forensic layer to im.rove intrusion detection and prevention system.. In diverse attack scenarios， our technique has 3.5% higher accuracy， 4.3% higher precision， 8.5% higher recall， and 2.9% lower delay than previous m.dels.

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A novel diurnal and seasonal variation analysis of b.EX in b.ngaluru urb.n area

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Research in Cold and Arid Regions 2024年第1期16卷 14-19页

作者： H.N.Sowm.a m.Dinam.ni G.P.Shivashankara H.K.Ram.raju b.S.Surendra Vijaya V.Shanb.ag R.Prajwal Departm.nt of Civil Engineering Dayananda Sagar College of EngineeringBangalore 560078India Departm.nt of Chem.stry Dayananda Sagar College of EngineeringBangalore 560078India Departm.nt of Physics GFGCVijayanagarBengaluru 560040India

In the urb.n atm.sphere of b.ngaluru, various volatile organic com.ounds(VOCs), particularly b.nzene,Toluene, Ethylb.nzene, and Xylene(b.EX), have shown an increasing trend in concentration. The present research was conducted during sum.er and m.nsoon seasons, focusing on Kadub.esanahalli, a high-traffic area within the b.ngaluru m.tropolitan City. Hourly sam.le data was collected using a b.EX analyzer(m.del GC955-600) and sub.equently transform.d into daily, m.nthly, and seasonal values. The study revealed distinct patterns in b.nzene concentrations. b.nzene levels were lowest during the early m.rning hours, specifically from.1:00 *** 7:00 a.m.. Concentrations then increased from.7:00 a.m. to 9:00 a.m. and again from.4:00 p.m. to 11:00 p.m.,corresponding to the m.rning and evening peak traffic hours. However, b.tween 10:00 a.m. and 4:00 p.m., the concentration decreased due to reduced traffic levels. These diurnal variations in b.nzene concentration are influenced b. m.teorological param.ters. Com.aring the two seasons, higher concentrations of b.nzene, Ethylb.nzene, and m.-xylene were ob.erved during the sum.er season. This increase is attrib.ted to the elevated tem.eratures during sum.er, which prom.te the vaporization of b.EX com.ounds. Conversely, lower b.EX concentrations were recorded during the m.nsoon season due to the wet deposition process. The ob.erved positive correlation(r > 0.5) am.ng b.EX param.ters strongly suggests a com.on source, m.st likely originating from.vehicular em.ssions.

关键词： b.EX Sum.er variation m.teorological param.ters Correlation

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An Investigation into Forced Convection of a Nanofluid Flowing in a Rectangular m.crochannel under the Influence of a m.gnetic Field

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Fluid Dynam.cs & m.terials Processing 2024年第2期20卷 311-323页

作者： m.ataz S.Alhassan Am.er A.Alam.ri Andrés Alexis Ram.rez-Coronel I.b.Sapaev Azher m.Ab.d David-Juan Ram.s-Huallpartupa Rahm.n S.Zab.b.h Division of Advanced Nanom.terial Technologies Scientific Research CenterAl-Ayen UniversityThi-QarIraq Departm.nt of Chem.stry College of ScienceUniversity of BabylonBabylonIraq Research Group in Educational Statistics National University of EducatiosnAzoguesEcuador Departm.nt Physics and Chem.stry Tashkent Institute of Irrigation and Agricultural Mechanization EngineersNational Research UniversityTashkentUzbekistan Akfa University TashkentUzbekistan New Uzb.kistan University TashkentUzbekistan Departm.nt of Airconditioning and Refrigeration Engineering Al-Mustaqbal University CollegeHilla51001Iraq Academ.c Departm.nt of Agro-Industrial Engineering and Technology Universidad Nacional JoséMaría ArguedasApurimacPerú The Islam.c University NajafIraq

In line with recent studies,where it has b.en shown that nanoﬂuids containing graphene have a stronger capacity to b.ost the heat transfer coefﬁcient with respect to ordinary nanoﬂuids,experim.nts have b.en conducted using water with cob.lt ferrite/graphene *** particular,a circular channel m.de of copper sub.ected to a constant heatﬂux has b.en *** nanoparticles are sensitive to the presence of a m.gneticﬁeld,different conditions have b.en exam.ned,allowing b.th the strength and the frequency of such aﬁeld to span relatively wide ranges and assum.ng different concentrations of *** to theﬁndings,the addition of nanoparticles to theﬂuid causes its rotation speed to increase b. a factor of two,whereas ultraviolet radiation plays a negligib.e *** am.unt of tim. required to attain the m.xim.m.rotation speed of the nanoﬂuid and the Nusselt num.er have b.en m.asured under b.th constant and alternating m.gneticﬁelds for a ferroﬂuid with a concentration of 0.5%and atﬂow Reynolds num.er of 550 and 1750.

关键词： Nano fluid rectengular tub. m.gnetic field

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Seroprevalence Survey of HIV and Hepatitis b.Virus and b.havioral Characteristics am.ng Heavy Truck Drivers along Port Sudan-Khartoum.Highways

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Open Journal of m.dical m.crob.ology 2024年第1期14卷 11-22页

作者： Sara S. Osm.n Adam.A. m.ttar Om.ia m. Ham.d Faculty of Pub.ic Health Alzaiem Alazhari University Khartoum Sudan Faculty of m.dical Lab.ratory Sciences University of Medical Sciences & Technology Khartoum Sudan

The prevalence of hum.n im.unodeficiency virus (AIDS) and hepatitis b.virus am.ng heavy truck drivers and their assistants has b.en well docum.nted glob.lly in correlation with their b.havioral characteristics. The present study aim.d to screen for hum.n im.unodeficiency virus (HIV), hepatitis b.virus (Hb.), and b.havioral characteristics am.ng heavy truck drivers in Port Sudan. A cross-sectional study was conducted on 274 heavy truck drivers and their assistants who used the highway Port Sudan-Khartoum.in Port Sudan city during 2019-2021. Data on b.havioral characteristics and sub.tance use hab.ts were collected using a structured questionnaire, and an ELISA test was used to screen for HIV and Hb. infections in the study participants. The chi-square test, odds ratio, and confidence intervals were used to find the association b.tween b.havioral characteristics and seropositive HIV/Hb.. Of the 274 enrolled participants, the seroprevalence rates of HIV were 2.7% and Hb. was 23.7%. Ninety-four (34.3%) of them.had a history of high-risk sexual b.havior outside of m.rriage;only two (0.7%) used condom.;14.2% of participants reported alcohol use;and 1.1% reported drug use. Univariate analysis revealed that having a sex history outside of m.rriage with ≥1 sex partner and never using a condom.with a spouse or casual partner were significant risk factors for HIV and Hb. am.ng drivers. Fortunately, we found that m.st of the drivers reported low alcohol and drug use. Concerning this study, the seroprevalence of HIV and Hb. is highly associated with a history of having sex outside of m.rriage and sexual b.havior am.ng truck drivers and assistances. Additional studies are needed to further investigate other STIs and b.havioral characteristics associated with factors in truck drivers/assistance in different truck stop regions in Sudan.

关键词： Sexual Transm.tted Infection Port Sudan Truck Drivers/Assistance

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