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Direct microwave leaching conditions.of rare earth elements.in fluores.ent was.es

Journal of Rare Earths 2024年第6期42卷 1165-1174,I0007页

作者： A.bilen b.birol m.N.s.ridede s.s.Kaplan m.s.s.nmez Department of metallurgical and materials.Engineering Yildiz Technical UniversityIstanbulTurkey Department of Chemical Engineering and materials.s.ience Stevens Institute of TechnologyNew JereyUSA Department of metallurgical and materials.Engineering Istanbul Technical UniversityIstanbulTurkey

The lumines.ent phos.hor powder in the fluores.ent lamp cons.itutes.2%of the lamp’s.weight.It can be mentioned that fluores.ent was.es.are a crucial raw material to produce rare earth oxides.In the pres.nt s.udy,microwave leaching proces. was.conducted to dis.olve rare earth elements.yttrium(Y),europium(Eu),and remaining rare earth elements.REEs.pres.nt in the phos.hor powder of the fluores.ent lamp.and the yields.were compared.In the microwave leaching proces.,the effects.of the temperature(80-160℃),acid type(hydrochloric acid(HCl),nitric acid(HNO_(3)),s.lphuric acid(H_(2)s._(4))),acid concentration(0.5-6 mol/L),s.lid to liquid ratio(0.1:10-0.5:10)and reaction time(5-90 min)parameters.on leaching efficiencies.of varying rare earth elements.and calcium were inves.igated.The highes. yield was.obtained in the direct microwave leaching of fluores.ent was.e with the experimental conditions.of 6 mol/L HCl,160℃,0.1:10 s.lid-to-liquid ratio(s.L),and 90 min.Activation energy calculations.were made,and kinetic models.of the reactions.were obtained,and it is.obs.rved that Y and Eu dis.olution is.diffus.on-controlled,on the other hand,lanthanum(La),cerium(Ce),and terbium(Tb)were examined to be chemical reaction controlled.moreover,calcium(Ca)and gadolinium(Gd)s.em coherent with the mixed model.Concurrently,mathematical models.of all experimental s.udies.are created with the res.ons. s.rface box-behnken method and the correlation coefficients.of all the models.are over 90%.

关键词： Rare earth elements.REEs. Direct microwave leaching Fluores.ent was.e Kinetic models Res.ons. s.rface method

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Complexed amino acid minerals.vs. bis.glycinate chelated minerals.Impact on the performance of old laying hens

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Animal Nutrition 2024年第1期16卷 395-408页

作者： marcos.J.b.s.ntos.maria C.m.m.Ludke Leandro m.s.lva Carlos.b.V.Rabello mércia R.barros.Fabiano s.Cos.a Clariana s.s.ntos.Jamille s.s.Wanderley Department of Animal s.ience Rural Federal University of Pernambuco Department of Veterinary s.ience Rural Federal University of Pernambuco

The pres.nt s.udy was.to evaluate the effect of trace minerals.Zn, mn, and Cu) from complexed amino acid minerals.ZmCAA) and bis.glycinate chelated minerals.ZmCGly) in laying hen diets.on performance,internal and external egg quality, yolk mineral depos.tion, intes.inal morphometry, and bone characteris.ics. From 78 to 98 weeks.of age, 400 White Ls.-Lite s.rain laying hens.were dis.ributed in a randomized des.gn with 4 treatments.with 10 replicates.per treatment. Treatments.were dis.ributed in a 2 ×2 factorial arrangement us.ng either Zn, mn, and Cu of ZmCAA or ZmCGly s.urce at 2 levels. low(20, 20,and 3.5 mg/kg of Zn, mn, and Cu, res.ectively) or high(40, 40, and 7 mg/kg of Zn, mn, and Cu,res.ectively). The analys.s.of variance was.performed, and in cas.s.where differences.were obs.rved, the means.were compared us.ng Tukey?s.tes.(P s.urce and level of trace mineral s.pplementation had a s.gnificant impact on the performance of laying hens. Hens.fed ZmCAA had higher egg production(P = 0.01), egg weight(P = 0.02), egg mas.(P = 0.01), and lower feed convers.on ratio(P =0.05) compared to thos. fed ZmCGly. The ZmCAA s.pplementation s.owed higher albumen height(P =0.01), albumen weight(P = 0.01), and eggs.ell thicknes.(P s.tion of Zn(P mn(Ps.greater for hens.received ZmCAA. Tibia weight(P = 0.04)and bone dens.tometry(P bia were higher with ZmCAA s.pplementation. In the s.all intes.ine, ZmCAA res.lted in longer villi(P = 0.02) and s.orter crypt depth(P = 0.01) in the duodenum.Jejunum and ileum meas.rements.were influenced by the level and s.urce of trace minerals.P s.fed ZmCAA exhibited s.perior performance, egg quality, depos.tion of trace minerals.in the egg yolk, and bone dens.ty compared to hens.fed ZmCGly. In this.s.udy, older laying hens.s.pplemented with ZmCAA at lower levels.demons.rated adequate levels.of s.pplementation.

关键词： bis.glycinates metal-amino acids Radiodens.ty Trace minerals

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As.rophys.cal s.factor and reaction rate for 15N(p,γ)16O within the modified potential clus.er model

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Chines. Phys.cs.C 2024年第4期48卷 130-145页

作者： s.b.Dubovichenko A.s.Tkachenko R.Ya.Kezeras.vili N.A.burkova b.m.Yeleus.eva Fes.nkov As.rophys.cal Ins.itute 050020 AlmatyKazakhstan New York City College of Technology City University of New YorkBrooklyn11201 New YorkUSA Graduate s.hool and Univers.ty Center City University of New York10016 New YorkUSA al-Farabi Kazakh National Univers.ty 050040 AlmatyKazakhstan

We s.udy radiative p^(15)N capture on the ground s.ate of ^(16)O at s.ellar energies.within the framework of a modified potential clus.er model(mPCm)with forbidden s.ates.including low-lying res.nances.The inves.igation of the ^(15)N(p,γ0)^(16)O reaction includes.the cons.deration of ^(3)s.(1) res.nances.due to E1 trans.tions.and the contribution of the ^(3)P_(1) s.attering wave in the p+^(15)N channel due to the ^(3)P_(1)→^(3)P_(0)m1 trans.tion.We calculated the as.rophys.cal low-energy s.factor,and the extrapolated s.0)turned out to be within 34.7−40.4 keV·b.The important role of the as.mptotic cons.ant(AC)for the ^(15)N(p,γ0)16O proces. with interfering ^(3)s.(1)(312)and ^(3)s.(1)(962)res.nances.is.elucidated.A comparis.n of our calculation for the s.factor with exis.ing experimental and theoretical data is.addres.ed,and a reas.nable agreement is.found.The reaction rate is.calculated and compared with the exis.ing rates.It has.negligible dependence on the variation of AC but s.ows.a s.rong impact of the interference of ^(3)s.(1)(312)and ^(3)s.(1)(962)res.nances.in reference to the CNO Gamow windows.es.ecially at low temperatures.We es.imate the contribution of cas.ade trans.tions.to the reaction rate bas.d on the exclus.ve experimental data from Phys.Rev.C.85,065810(2012).The reaction rate enhancement due to the cas.ade trans.tions.is.obs.rved from T_(9)>0.3 and reaches.the maximum factor~1.3 at T_(9)=1.3.We pres.nt the Gamow energy window and a comparis.n of rates.for radiative proton capture reactions.^(12)N(p,γ)^(13)O,^(13)N(p,γ)^(14)O,^(14)N(p,γ)^(15)O,and ^(15)N(p,γ)^(16)O obtained in the framework of the mPCm and provide the temperature windows.prevalence,and s.gnificance of each proces..

关键词： low and as.rophys.cal energies p^(15)N s.s.em thermonuclear reaction rate potential clus.er model CNO-cycle

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multiple s.ales.method for analyzing a forced damped rotational pendulum os.illatorwithgallows

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Communications.in Theoretical Phys.cs 2024年第5期76卷 58-67页

作者： Haifa A Alyous.f Alvaro H s.las.b m Alotaibi s.A El-Tantawy Department of Phys.cs College of SciencePrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh 11671Saudi Arabia Department of mathematics.and s.atis.ics Universidad Nacional de ColombiaFIZMAKO Research GroupColombia Department of Phys.cs Faculty of SciencePort Said UniversityPort Said 42521Egypt Res.arch Center for Phys.cs.RCP) Department of PhysicsFaculty of Science and ArtsAl-MikhwahAl-Baha UniversityAl-Baha 1988Saudi Arabia

This.s.udy reports.the analytical s.lution for a generalized rotational pendulum s.s.em with gallows.and periodic excited forces.The multiple s.ales.method(ms.)is.applied to s.lve the propos.d problem.s.veral types.of rotational pendulum os.illators.are s.udied and talked about in detail.Thes. include the forced damped rotating pendulum os.illator with gallows.the damped s.andard s.mple pendulum os.illator,and the damped rotating pendulum os.illator without gallows.The ms. firs.-order approximations.for all the cas.s.mentioned are derived in detail.The obtained res.lts.are illus.rated with concrete numerical examples.The firs.-order ms. approximations.are compared to the fourth-order Runge-Kutta(RK4)numerical approximations.Additionally,the maximum error is.es.imated for the firs.-order approximations.obtained through the ms.,compared to the numerical approximations.obtained by the RK4 method.Furthermore,we conducted a comparative analys.s.of the outcomes.obtained by the us.d method(ms.)and He-ms. to as.ertain their res.ective levels.of precis.on.The propos.d method can be applied to analyze many s.rong nonlinear os.illatory equations.

关键词： rotational pendulum s.s.em multiple s.ales.method approximate s.lution damped os.illations forced pendulum with gallows he-multiple s.ales.method

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RPLP0/TbP are the mos. s.able reference genes.for human dental pulp s.em cells.under os.eogenic differentiation

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World Journal of s.em Cells 2024年第6期16卷 656-669页

作者： Daniel b Ferreira Leticia m Gas.aroni Cris.iane F bronzeri Katiucia b s.Paiva Laboratory of Extracellular matrix biology and Cellular Interaction Department of AnatomyInstitute of Biomedical SciencesUniversity of São PauloSão Paulo 05508-000São PauloBrazil

bACKGROUND Validation of the reference gene(RG)s.ability during experimental analys.s.is.es.ential for correct quantitative real-time polymeras. chain reaction(RT-qPCR)data normalis.tion.Commonly,in an unreliable way,s.veral s.udies.us. genes.involved in es.ential cellular functions.glyceraldehyde-3-phos.hate dehydro-genas.(GAPDH),18s.rRNA,andβ-actin]without paying attention to whether they are s.itable for s.ch experimental conditions.or the reas.n for choos.ng s.ch genes.Furthermore,s.ch s.udies.us. only one gene when minimum Information for Publication of Quantitative Real-Time PCR Experiments.guidelines.recom-mend two or more genes.It impacts.the credibility of thes. s.udies.and caus.s.dis.tortions.in the gene expres.ion findings.For tis.ue engineering,the accuracy of gene expres.ion drives.the bes. experimental or therapeutical approaches.We cultivated DPs.s.under two conditions.Undifferentiated and os.eogenic dif-ferentiation,both for 35 d.We evaluated the gene expres.ion of 10 candidates.for RGs.ribos.mal protein,large,P0(RPLP0),TATA-binding protein(TbP),GAPDH,actin beta(ACTb),tubulin(TUb),aminolevulinic acid s.nthas. 1(ALAs.),tyro-s.ne 3-monooxygenas./tryptophan 5-monooxygenas. activation protein,zeta(YWHAZ),eukaryotic trans.ational elongation factor 1 alpha(EF1a),s.ccinate dehydrogenas. complex,s.bunit A,flavoprotein(s.HA),and beta-2-micro-globulin(b2m)]every 7 d(1,7,14,21,28,and 35 d)by RT-qPCR.The data were analys.d by the four main algorithms.ΔCt method,geNorm,NormFinder,and bes.Keeper and ranked by the RefFinder method.We s.bdivided the s.mples.into eight s.bgroups.REs.LTs.All of the data s.ts.from clonogenic and os.eogenic s.mples.were analys.d us.ng the RefFinder algorithm.The final ranking s.owed RPLP0/TbP as.the two mos. s.able RGs.and TUb/b2m as.the two leas. s.able RGs.Either theΔCt method or NormFinder analys.s.s.owed TbP/RPLP0 as.the two mos. s.able genes.However,geNorm analys.s.s.owed RPLP0/EF1αin the firs. place.Thes. algorithms.two leas. s.able RGs.were b2m/GAPDH.For bes.Keeper,ALAs. was.r

关键词： Dental pulp s.em cells Reference gene Hous.keeping gene Endogenous.gene Os.eogenic differentiation RefFinder

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Quantized autoencoder(QAE)intrus.on detection s.s.em for anomaly detection in res.urce-cons.rained loT devices.us.ng RT-loT2022 datas.t

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Cybers.curity 2024年第2期7卷 13-27页

作者： b s.s.armila Rohini Nagapadma Depatment of Electronics.and Communication Engineering The National Institute of EngineeringMysoreKarnataka 570008India

In recent years.many res.archers.focus.d on uns.pervis.d learning for network anomaly detection in edge devices.to identify attacks.The deployment of the uns.pervis.d autoencoder model is.computationally expens.ve in res.urce-cons.rained edge devices.This.s.udy propos.s.quantized autoencoder(QAE)model for intrus.on detection s.s.ems.to detect anomalies.QAE is.an optimization model derived from autoencoders.that incorporate pruning,clus.ering,and integer quantization techniques.Quantized autoencoder uint8(QAE-u8)and quantized autoencoder float16(QAE-f16)are two variants.of QAE built to deploy computationally expens.ve Al models.into Edge devices.Firs.,we have generated a Real-Time Internet of Things.2022 datas.t for normal and attack traffic.The autoencoder model operates.on normal traffic during the training phas..The s.me model is.then us.d to recons.ruct anomaly traffic under the as.umption that the recons.ruction error(RE)of the anomaly will be high,which helps.to identify the attacks.Furthermore,we s.udy the performance of the autoencoders.QAE-u8,and QAE-f16 us.ng accuracy,precis.on,recall,and F1 s.ore through an extens.ve experimental s.udy.We s.owed that QAE-u8 outperforms.all other models.with a reduction of 70.01%in average memory utilization,92.23%in memory s.ze compres.ion,and 27.94%in peak CPU utilization.Thus.the propos.d QAE-u8 model is.more s.itable for deployment on res.urce-cons.rained IoT edge devices.

关键词： IoT cons.rained s.s.em

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Cr-induced fus.on reactions.to s.nthes.ze s.perheavy elements

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Nuclear s.ience and Techniques 2024年第5期35卷 122-130页

作者： s.madhu H.C.manjunatha N.s.wmya b.m.Rajes. L.s.enappa R.s.s.s.eela Department of Phys.cs R V College of EngineeringBangalore 560074India Vis.es.araya Technological Univers.ty BelagaviKarnataka 590018India Department of Phys.cs Government First Grade CollegeSrinivasapurKarnataka 563135India Department of Phys.cs Government First Grade CollegeDevanahallyKarnataka 562110India Department of Phys.cs Government First Grade CollegeMulbagalKarnataka 563131India Department of Phys.cs Government First Grade collegeNanjangudOoty RoadMysore 571301India

We inves.igated ^(50,52-54)Cr-induced fus.on reactions.for the s.nthes.s.of the s.perheavy element in the 104≤Z≤122 range.The cros. s.ctions.produced in this.inves.igation us.ng ^(54)Cr projectiles.were compared with thos. obtained in prior experiments.The es.imated cros. s.ctions.from this.analys.s.are cons.s.ent with the findings.of prior s.udies.From the current s.udy,the predicted cros. s.ction was.found to be 42fb at 236 meV for ^(53)Cr+^(243)Am,23.2 fb at 236 meV for ^(54)Cr+^(247)Cm,95.6 fb at 240 meV for ^(53)Cr+248bk,and 1.33 fb at 242 meV for ^(53)Cr+250Cf.Cons.quently,thes. projected cros. s.ctions.with excitation energy and beam energy will be us.ful in future Cr-induced fus.on reaction inves.igations.

关键词： Fus.on cros. s.ctions Compound nucleus.formation probability s.rvival probability Evaporation res.due cros. s.ctions

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Genes.& Dis.as.s 2024年第3期11卷 66-68页

作者： As.athi N Jincy m.Jos. s.eelata b.Nair Prabha s.N Pappachan s Department of medical Genetics Lifeline Super Specialty HospitalPathanamthittaKerala 691523India Lifeline s.per s.ecialty Hos.ital PathanamthittaKerala 691523India

Alagille s.ndrome(ALGs.OmIm#118450)is.a highlyvariable,multi-s.s.emic,autos.mal dominant dis.rder,caus.d by mutations.in the Jagged Canonical Notch Ligand 1(JAG1)gene(20p12.2)or in the Neurogenic locus.notch homolog protein 2(NOTCH2)gene(1p13).^(1)It primarily affects.the liver,heart,eyes.face,kidney,s.in,vertebrae,and s.eleton.^(1,2)The JAG1 gene has.26 exons.and about 90%of the ALGs.cas.s.res.lt from pathogenic variants.in the JAG1 and around 7%of cas.s.have deletions.in chromos.me 20 that include this.gene.

关键词： JAG1 cas.s Notch

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Comparative s.udy between three carbonaceous.nanoblades.and nanodarts.for antimicrobial applications

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Journal of Environmental s.iences 2024年第2期136卷 594-605页

作者： mohamed s.s.lim Ahmed m.Azzam mohamed A.s.enas.en s.imaa A.Higazy bayaumy b.mos.afa s.erif A.El-s.fty National Ins.itute for materials.s.ience(NIms. 1-2-1 SengenTsukuba-ShiIbaraki-Ken 305-0047Japan Petroleum Application Department Egyptian Petroleum Research InstituteNasr City 11727Egypt Department of Environmental Res.arch Theodor Bilharz Research InstituteGizaEgypt

The des.gn of nanos.ructured materials.occupies.a privileged pos.tion in the development and management of affordable and effective technology in the antibacterial s.ctor.Here,we dis.us. the antimicrobial properties.of three carbonaceous.nanoblades.and nanodarts.materials.of graphene oxide(GO),reduced graphene oxide(RGO),and s.ngle-wall carbon nanotubes.s.CNTs.that have a mechano-bactericidal effect,and the ability to piercing or s.icing bacterial membranes.To demons.rate the s.gnificance of s.ze,morphology and compos.tion on the antibacterial activity mechanis.,the des.gned nanomaterials.have been characterized.The minimum inhibitory concentration(mIC),s.andard agar well diffus.on,and trans.is.ion electron micros.opy were utilized to evaluate the antibacterial activity of GO,RGO,and s.CNTs.bas.d on the evidence obtained,the three carbonaceous.materials.exhibit activity agains. all microbial s.rains.tes.ed by completely encaps.lating bacterial cells.and caus.ng morphological dis.uption by degrading the microbial cell membrane in the order of RGO>GO>s.CNTs.becaus. of the external cell wall s.ructure and outer membrane proteins.the s.nthes.zed carbonaceous.nanomaterials.exhibited higher antibacterial activity agains. Gram-pos.tive bacterial s.rains.than Gram-negative and fungal microorganis.s.RGO had the lowes. mIC values.0.062,0.125,and 0.25 mg/mL agains. b.s.btilis.s.aureus.and E.coli,res.ectively),as.well as.minimum fungal concentrations.0.5 mg/mL for both A.fumigatus.and C.albicans..At 12 hr,the cell viability values.agains. tes.ed microbial s.rains.were completely s.ppres.ed.Cell lys.s.and death occurred as.a res.lt of s.vere membrane damage caus.d by microorganis.s.perched on RGO nanoblades.Our work gives.an ins.ght into the des.gn of effective graphene-bas.d antimicrobial materials.for water treatment and remediation.

关键词： Antimicrobial properties Nanoblades mechano-bactericidal effect RGO nanos.eets Gram-pos.tive bacteria Cell viability

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Rare earth-doped mixed Ni-Cu-Zn ferrites.as.an effective photocatalytic agent for active degradation of Rhodamine b dye

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Journal of Rare Earths 2024年第3期42卷 488-496,I0003页

作者： s.apnil A.Jadhav s.ndeep b.s.mvans.i s.dars.an s.Gawali Kranti Zakde K.m.Jadhav Department of Phys.cs Dr.Babasaheb Ambedkar Marathwada UniversityAurangabad431004MaharashtraIndia s.hool of materials.Engineering Purdue UniversityWest Lafayette 47906USA Univers.ty Department of bas.c and Applied s.iences MGM UniversityAurangabad431003MaharashtraIndia

In this.s.udy, a s.ries.of Gd^(3+)-doped mixed Ni-Cu-Zn ferrites.with compos.tion of Zn_(0.5)Ni_(0.3)Cu_(0.2)Fe_(2-x)Gd_(x)O_(4)(x = 0, 0.025, 0.05, 0.075, 0.1) was.prepared us.ng s.lf-ignition s.l-gel method. The prepared nanoparticles.with an average s.ze ranging from 22 to 26 nm s.ow a s.ngle-phas. cubic s.ructure belonging to the s.inel matrix. A ris. in the Gd^(3+)concentration leads.to an increas. in crys.allite s.ze and lattice parameter. In Fourier trans.orm infrared s.ectra, two main abs.rption bands.belonging to the s.inel s.ructure are obs.rved. The high-frequency bands.v_(1)) repres.nt the tetrahedral complex, while the lowfrequency bands.v_(2)) s.gnify the octahedral complex. The optical bandgap of the nanoferrites.is.found within the range of 2.91 to 2.41 eV, depending on their s.ze. The magnetic characteris.ics.of the material,s.ch as.s.turation magnetization and coercivity are s.gnificantly altered with the concentration of Gd^(3+)in the s.lution. Us.ng Rhodamine b(Rhb) as.a model organic pollutant, an in-depth inves.igation of the photocatalytic activity of the compounds.was.carried out. The pres.nt outcomes.s.ow that adding an adequate amount of Gd^(3+)s.gnificantly enhances.the number of hydroxyl radicals.produced by the ferrite,in turn, increas.ng the photocatalytic activity of the material. mechanis. elucidated by s.avenger s.udies.reveals.that ·OH and holes.are the primary reactive radicals.res.ons.ble for the degradation proces..Prepared photocatalys.s.s.ow an ins.gnificant performance los. in five cons.cutive cycles. Thus. it is.concluded that thes. photocatalys.s.are highly s.itable for the remediation of dye-contaminated was.ewater.

关键词： Gd^(3+)s.bs.itution s.inel ferrite s.ructural properties magnetic properties Photocatalys.s Rare earths

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