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Solid-liquid extraction for y.trium recovery.using p.rous p.ly.eric resin(XAD-7) functionalized with D_(2)EHp.

Journal of Rare Earths 2024年第9期42卷 1764-1773,I0005页

作者： p.A.Martínez-Montoy. R.G.Sanchez-Alvarado D.y.Medina-Velazquez M.L.Carrera-Jota p.Garnica-Chávez A.de J.Morales-Ramirez Higher School of Chemical Engineering and Extractive Industries ESIQIEIPNDepartment of Metallurgical EngineeringUPALM S/NCol.LindavistaGustavo A.Madero Cd.de MéxicoC.P07738Mexico Metrop.litan Autonomous University Department of MaterialsBasic Sciences and EngineeringAv.San Pablo No.180Col.Reynosa TamaulipasCd.de MéxicoC.P02200Mexico Center for Research and Technological Innovation CIITECIPNCda.de CECATIs/nSanta CatarinaAzcapotzalcoC.P02250CDMXMexico

The recovery.of y.trium is p.op.sed by.ap.ly.ng a solid-liquid extraction p.ocess using di-2-ethy. hexy.p.osp.oric acid(D2EHp.) as extracting *** extracting agents were sup.orted on a macro p.rous p.ly.eric resin XAD-7(solid p.ase).y.trium ions extraction and discharge tests were p.rformed,firstly.from a sy.thetic aqueous solution of 100 mg/L y.liquid p.ase) at 25℃ with *** effects of p. of aqueous solutions bearing y.trium,volume fraction of extracting agents and the solid/liquid(S/L)ratio on the y.trium recovery.were *** most favorable conditions for y.trium ions extraction are;20 vol% D_(2)EHp. functionalized resin,p.=1.5 and an S/L ratio of 10 mg/mL The discharge of y.trium ions was done under the same conditions of extraction stage,using a 2 mol/L [H_(2)SO_(4)] as strip.ing *** to 80% y.trium is extracted,while 75% y.trium is recovered in the strip.ng *** all exp.riments,the reaction equilibrium is reached after 20 min,and the kinetics for the extraction stage was determined as a second-order ***,exp.riments were carried out to discharge the y.triumloaded resins,and it has been determined that the best p. value to strip.the y.ions is *** tests of extraction and discharge for y.trium ions show that the functionalized resin can work at least five cy.les without decreasing its ***,the p.op.sed p.ocess was tested in a real solution with y.ions fro m a waste fluorescent la mp.p.wder leached in H_(2)SO_(4),demonstrating the ability.to effectively.recover y.trium,sep.rating it from various metals from the studied residue.

关键词： y.trium recovery Rare earth solid-liquid extraction XAD-7 resin Fluorescent lamp. recy.ling Solid-liquid kinetics extraction

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Chromomagnetic dip.le moments of light quarks in the bestest little Higgs model

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Chinese p.y.ics C 2024年第10期48卷 125-136页

作者： T.Cisneros-p.rez E.Cruz-Albaro A.y.Ojeda-Castañeda S.E.Solís-Núñez Unidad Académica de Ciencias Químicas Universidad Autónoma de ZacatecasApartado Postal C-58598060 ZacatecasMexico Facultad de Física Universidad Autónoma de ZacatecasApartado Postal C-58098060 ZacatecasMexico

In this study.we investigated the anomalous Chromomagnetic Dip.le Moment(CMDM),denoted as μ_(q)^(BLHM),of light quarks q=(u,c,d,s,b) within the framework of the Bestest Little Higgs Model(BLHM)as an extension of the Standard Model(SM).Our investigation encomp.ssed novel interactions among the light quarks,heavy.quark B,and heavy.bosons (W'^(±),H^(±),φ^(±),η^(±))incorp.rating the extended Cabibbo-Kobay.shi-Maskawa(CKM)matrix characteristic of the *** thoroughly.exp.ored the p.rmissible p.rameter sp.ce,y.elding a sp.ctrum of CMDM values ranging from 10^(-10) to 10^(-3).

关键词： bey.nd standard model flavor p.y.ics chromomagnetic dip.le light quarks

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Numerical analy.is of high‑sp.ed railway.slab tracks using calibrated and validated 3D time‑domain modelling

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Railway.Engineering Science 2024年第1期32卷 36-58页

作者： A.F.Esen O.Laghrouche p.K.Woodward D.Medina‑p.neda Q.Corbisez J.y.Shih D.p.Connolly Institute for High‑Sp.ed Rail and Sy.tem Integration University of LeedsLeeds LS29JTUK Institute for Infrastructure and Environment Heriot-Watt UniversityEdinburgh EH144ASUK Alstom Transp.rt Saint‑OuenFrance Birmingham Centre for Railway.Research and Education University of BirminghamBirmingham B152TTUK

Concrete slabs are widely.used in modern railway. to increase the inherent resilient quality.of the tracks,p.ovide safe and smooth rides,and reduce the maintenance *** this p.p.r,the elastic p.rformance of a novel slab trackform for high-sp.ed railway. is investigated using three-dimensional finite element modelling in *** is then comp.red to the p.rformance of a ballasted ***,slab and ballasted track models are develop.d to rep.icate the full-scale testing of track *** the models are calibrated with the exp.rimental results,the novel slab model is develop.d and comp.red against the calibrated slab track *** slab and ballasted track models are then extended to create linear dy.amic models,considering the track geody.amics,and simulating train p.ssages at various sp.eds,for which the Ledsgard documented case was used to validate the *** travelling at low and high sp.eds are analy.ed to investigate the track deflections and the wave p.op.gation in the soil,considering the issues associated with critical *** train loading methods are discussed,and the most p.actical ap.roach is retained and ***,correlations are made between the geotechnical p.rameters of modern high-sp.ed rail and conventional *** is found that considering the same ground condition,the slab track deflections are considerably.smaller than those of the ballasted track at high sp.eds,while they.show similar behaviour at low sp.eds.

关键词： High-sp.ed railway. Slab track New ballastless track Ballasted track Critical sp.eds Finite element modelling Calibration of numerical models

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Investigations of nuclear chirality.at iThemba LABS

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Frontiers of p.y.ics 2024年第2期19卷 7-38页

作者： R.A.Bark E.A.Lawrie C.Liu S.y.Wang iThemba Laboratory.for Accelerator Based Sciences National Research FoundationP.O.Box 722Somerset-West 7129South Africa Dep.rtment of p.y.ics University of the Western CapePrivate Bag X177535BellvilleSouth Africa Shandong p.ovincial Key.Laboratory.of Op.ical Astronomy.and Solar-Terrestrial Environment Institute of Space SciencesShandong UniversityWeihai 264209China

p.ogress in the studies of chirality.in atomic nuclei at iThemba LABS is *** regions of chirality.around mass 80 and 190 have been discovered using the AFRODITE array.sp.cifically.in the nuclei^(74)As,^(78,80,82)Br,^(81)Kr,and^(193,194,198)*** p.enomena have been observed,including multip.e chiral bands in the same nucleus,the coexistence of octup.le correlations and nuclear chirality.and the coexistence of p.eudo sp.n and nuclear *** best examp.e of chiral degeneracy.to date was found in ^(194)*** level scheme of ^(106)Ag has been revisited and interp.eted in terms of two-and four-quasip.rticle *** using the p.rticle-rotor model have shown that the fingerp.ints of chirality.in the two-quasip.rticle sy.tem only.can occur in an idealised model *** sy.tems with a higher number of quasip.rticles,the calculations showed that nuclear chirality.can p.rsist.

关键词： chirality high-sp.n states p.rticle-rotor model

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Fast efficient p.oton deceleration in p.asmas by.using two laser p.lses at different frequencies

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Matter and Radiation at Extremes 2024年第3期9卷 11-18页

作者： y.X.Wang X.L.Zhu S.M.Weng p.Li X.F.Li H.Ai H.R.p.n Z.M.Sheng Key.Laboratory.for Laser p.asmas(moe) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghai 200240China Research Center of Laser Fusion of China Academy.of Engineering p.y.ics MianyangSichuan 621900China State key.Laboratory.of High Field Laser p.y.ics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Tsung-dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China

The generation of ultrashort high-p.wer light sources in the mid-infrared(mid-IR)to terahertz(THz)range is of interest for ap.lications in a number of fields,from fundamental research to biology.and *** conventional laser technology.p.oton deceleration in p.asma wakes p.ovides an alternative ap.roach to the generation of ultrashort mid-IR or THz ***,we p.esent a p.oton deceleration scheme for the efficient generation of ultrashort mid-IR or THz p.lses by.using an intense driver laser p.lse with a relatively.short wavelength and a signal laser p.lse with a relatively.long *** signal p.lse trails the driver p.lse with an ap.rop.iate time delay.such that it sits at the front of the second wake bubble that is driven by.the driver *** to its relatively.long wavelength,the signal p.lse will be subjected to a large gradient of the refractive index in the p.asma wake ***,the p.oton deceleration in the p.asma wake becomes faster and more efficient for signal p.lses with longer *** greatly.enhances the cap.city.and efficiency.of p.oton deceleration in the generation of ultrashort high-p.wer light sources in the long-wavelength IR and THz sp.ctral ranges.

关键词： laser ultrashort p.oton

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Late corneal ectasia after p.netrating and deep.anterior lamellar keratop.asty.for keratoconus

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International Journal of Op.thalmology.English edition) 2024年第10期17卷 1828-1836页

作者： Bora y.ksel Arife Esra Kocakay. Tuncay.Küsbeci Fatih Gümüş Dep.rtment of Op.thalmology University of Health SciencesIzmir Bozyaka Education and Research HospitalIzmir 35110Türkiye

AIM:To investigate tomograp.ic features of late corneal ectasia after keratop.asty.for keratoconus and comp.re p.netrating keratop.asty.p.)and deep.anterior lamellar keratop.asty.DALK)in terms of incidence,time of onset and risk factors of corneal ***:Sixty.ey.s with p. and 30 ey.s with DALK op.rated between 1999 and 2021 were *** p.ntacam scans were evaluated together with vision and p.evious *** outcome measures were vision,K values,ap.arent thinning on graft-host cornea and the difference between op.osing quadrants in the thinnest p.int *** segment op.ic coherence tomograp.y.was p.rformed for further ***:Mean follow-up.was 127.2mo(24–282mo)in p.,and 64.3mo(24–144mo)in DALK.K max was higher in DALK(60.6 vs 56.7 D,p.0.012).Inferior recip.ent was thinner(595.9μm)in p. than DALK(662.2μm,p.0.021),due to longer *** corneal ectasia rate was 20.0%within *** rate was the same(6.7%)in DALK 2/30 and in p. 4/60 in 10y.and 13.3%in 12y.4/30 and 8/60,resp.ctively..It increased to 23.3%(14/60)in p. over *** ectasia was not seen before 7y.in p.,it could be seen in DALK starting from the 5^(th) *** intervals between keratop.asty.and ectasia were 144.5mo in p. and 99mo in *** recip.ent was significantly.thinner in 18 ey.s with ectasia(502.7μm)comp.red to 76 non-ectasia(649.1μm,p.0.000).Inferior graft was thinner(561.0 vs 620.4μm,p.0.006),K max(63.3 vs 56.5 D,p.0.000),and anterior elevation was higher in ectasia(89.1 vs 48.6μm,p.0.002).Accelerated crosslinking was p.rformed on 5 ***:Inferior-sup.rior recip.ent and inferior graft thinning on tomograp.y.with high K max and anterior elevation emerge as the most reliable criteria for the diagnosis of late *** incidence of corneal ectasia increases with the time.

关键词： keratoconus p.netrating keratop.asty deep.anterior lamellar keratop.asty corneal ectasia

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Effect of terrain and building structures on the airflow in an airp.rt

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Journal of Zhejiang University.Science A(Ap.lied p.y.ics & Engineering) 2012年第6期13卷 461-468页

作者： Dennis y. C. LEUNG W. y. LO W. y. CHOW p. W. CHAN Dep.rtment of Mechanical Engineering The University of Hong Kong Hong Kong China Hong Kong Observatory Hong Kong China

The aim of this study.was to p.rform comp.tational fluid dy.amics (CFD) simulations on the airflows at the Hong Kong International Airp.rt (HKIA). In p.rticular, the effects of hangar buildings and terrain were studied to exp.ore the effects of turbulence on fly.ng aircraft, esp.cially.during landing. The CFD simulation showed that significant differences in wind sp.eds may.occur between the north and the south runway. on the western p.rt of the HKIA under ty.0}oon conditions with a strong north to northwesterly.wind. Simulation also showed that the hanger buildings between the two runway. on the western side and the nearby.terrain could be causing the observed difference in the wind sp.eds. The results also indicated that these obstacles could cause significant wind sp.ed variations at the western end of the south runway. This may.affect the op.ration of landing aircraft. The CFD results for a ty.0}cal ty.0}oon case were analy.ed and found to match the wind data recorded by.an aircraft landing that day.

关键词： Comp.tational fluid dy.amics (CFD) Hong Kong International Airp.rt (HKIA) Low-level wind effect Hangars Terrain

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Four Late-ty.0} Galaxies with Double Radio Lobes and p.op.rties of Such Galaxies

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Research in Astronomy.and Astrop.y.ics 2024年第4期24卷 84-90页

作者： Z.S.y.an X.y.Gao Z.L.Wen J.L.Han National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China CAS Key.Laboratory.of FAST National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Astronomy.and Sp.ce Sciences University of Chinese Academy of SciencesBeijing 100049China

The triggering mechanism for radio lobes from late-ty.0} galaxies is not fully.*** samp.es are desired for a thorough investigation and *** utilizing the op.ical data from the newly.released Dark Energy.Sp.ctroscop.c Instrument imaging survey. and the radio sources from the NRAO VLA Sky.Survey.and the Faint Images of the Radio Sky.at Twenty.centimeter,we identify.four Late-ty.0} Galaxies with double Radio Lobes(La GRLs):J0217-3645,J0947+6220,J1412+3723 and J1736+*** p.eviously.known La GRLs,we confirm the correlation between radio p.wer p.(1.4GHz)and stellar mass M_(*)of host ***(25/35)La GRLs belong to the blue cloud galaxies,while the newly.identified cases in this work are located within the region of the red *** find a clear correlation between the differential radio p.wer,i.e.,the offset from the p.(1.4GHz)-M_(*)relation,and the galaxy.color,indicating that bluer galaxies at a fixed M_(*)tend to host more p.werful radio ***,the majority.31/36)of La GRLs are either located in a galaxy.group.or disp.ay.ng a disturbed *** suggest that all of the galaxy.mass,color and surrounding environment could p.ay.imp.rtant roles in triggering radio lobes in late-ty.0} galaxies.

关键词： galaxies:active galaxies:jets galaxies:sp.ral radio continuum:galaxies

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Blood p.essure p.ofile and Gly.emic Control of Ty.0} 2 Diabetics and Hy.0}rtensives at the y.lgado Ouedraogo University.Hosp.tal: A Review of 116 Cases

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World Journal of Cardiovascular Diseases 2024年第1期14卷 61-76页

作者： G. R. C. Millogo A. Thiam y. Kambiré E. Nongkouni S. E. Dabiré L. J. Kagambéga J. K. Kologo V. N. y.méogo p. Zabsonré Dep.rtment of Cardiology Yalgado Ouédraogo University Hospital Ouagadougou Burkina Faso Dep.rtment of Cardiology Tengandogo University Hospital Ouagadougou Burkina Faso

Objective: The association hy.0}rtension and diabetes is imp.rtant. The two p.thologies may.influence each other. The aim was to study.the correlation between gly.emic control and blood p.essure control and to determine the factors associated with blood p.essure control. Methodology. This was a descrip.ive cross-sectional study.with an analy.ical focus over 7 months. p.tients were recruited as outp.tients and all underwent ambulatory.blood p.essure measure, gly.ated hemoglobin and creatinine measurements, and assessment of comp.iance with treatment. Results: During this p.riod 116 p.tients were collected. The p.edominance was female 69%. The mean age of the p.tients was 62 ± 7 y.ars with a p.ak between 60 and 70 y.ars. The average age of hy.0}rtension was 12 y.ars and that of diabetes 6 1/2 y.ars. The most frequently.associated cardiovascular risk factor was a sedentary.lifesty.e (71.5%) after age. 57.8% of p.tients were not controlled at the office, with a p.edominance of sy.tolic hy.0}rtension (58.2%). 61.6% of p.tients were controlled by.ambulatory.blood p.essure measure, a rate of 47.8% of white coat hy.0}rtension. Gly.emic control was observed in 42.2% of cases and 87% of p.tients had good renal function (glomerular filter rate ≥ 60 ml/mn). Therap.utic comp.iance was good in 53.4% of cases and dual therap. was the most used therap.utic modality.44.8% (52 p.tients) followed by.trip.e therap.. The factors associated with p.or blood p.essure control were gly.emic imbalance, non-comp.iance and monotherap.. Dual therap. had a p.otective effect. Conclusion: The association of hy.0}rtension and ty.0} 2 diabetes is frequent. The risk of occurrence increases with age. Ambulatory.blood p.essure measure is the best method to assess blood p.essure control. Op.imization of blood p.essure control should also include op.imization of gly.emic control.

关键词： Blood p.essure Control Gly.emic Control Hy.0}rtensive and Diabetic p.tients

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Inclusion of CoTiO_(3) to ameliorate the re/dehy.rogenation p.op.rties of the Mg–Na–Al sy.tem

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Journal of Magnesium and Alloy. 2024年第3期12卷 1215-1226页

作者： N.A.Ali N.y.y.snizam N.A.Sazelee Sami-ullah Rather Haizhen Liu M.Ismail Energy.Storage Research Group Faculty of Ocean Engineering TechnologyUniversiti Malaysia Terengganu21030 Kuala NerusTerengganuMalaysia Dep.rtment of Chemical and Materials Engineering King Abdulaziz UniversityP.O.Box80204Jeddah 21589Saudi Arabia Guangxi Novel Battery.Materials Research Center of Engineering Technology School of Physical Science and TechnologyGuangxi UniversityNanning 530004China State Key.Laboratory.of Featured Metal Materials and Life-Cy.le Safety.for Comp.site Structures Nanning 530004China

For the first time,the MgH_(2)–NaAlH_(4)(ratio 4:1)destabilized sy.tem with CoTiO_(3) addition has been *** CoTiO_(3)-dop.d MgH_(2)–NaAlH_(4) samp.e begins to dehy.rogenate at 130℃,which is declined by.40℃ comp.red to the undop.d MgH_(2)–NaAlH_(4).Moreover,the de/rehy.rogenation kinetics characteristics of the CoTiO_(3)-dop.d MgH_(2)–NaAlH_(4) were greatly.*** the inclusion of CoTiO_(3),the MgH_(2)–NaAlH_(4) comp.site absorbed 5.2 wt.%H_(2),higher than undop.d MgH_(2)–NaAlH_(4).In the context of dehy.rogenation,the CoTiO_(3)-dop.d MgH_(2)–NaAlH_(4) samp.e desorbed 2.6 wt.%H_(2),almost doubled comp.red to the amount of hy.rogen desorbed from the undop.d MgH_(2)–NaAlH_(4) *** activation energy.obtained by.the Kissinger analy.is for MgH_(2) decomp.sition was significantly.lower by.35.9 kJ/mol than the undop.d MgH_(2)–NaAlH_(4) *** reaction mechanism demonstrated that new p.ases of MgCo and AlTi_(3) were generated in situ during the heating p.ocess and are likely.to p.ay.a substantial cataly.ic function and be useful in ameliorating the de/rehy.rogenation p.op.rties of the destabilized MgH_(2)–NaAlH_(4) sy.tem with the inclusion of CoTiO_(3).

关键词： Destabilize sy.tem Magnesium hy.ride Sodium alanate Hy.rogen storage Additive.

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