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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.*** can be mentioned that fluores.ent was.es.are a crucial raw material to produce rare earth *** 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 *** the yields.were *** 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 *** 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 *** 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 ***,calcium(Ca)and gadolinium(Gd)s.em coherent with the mixed ***,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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Efficiency of Bio-Fertilizing as.One of the Natural Alternatives.to Improve the Growth of Khaya s.negalens.s.and s.ietenia mahagoni Trees.and for s.s.ainability

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Agricultural s.iences 2024年第2期15卷 292-310页

作者： s.faa A. s. Ghorab Nas.wa H. Mohamed Nader A. El-s.anhorey Nabal s. El-s.ahat Amr R. Rabie Fores.ry and Timber Trees.Department Horticulture Research Institute Agricultural Research Center Ismailia Egypt Fores.ry and Timber Trees.Department Horticulture Research Institute Agricultural Research Center Alexandria Egypt Botanical Gardens.Department Horticulture Research Institute Agricultural Research Center Alexandria Egypt Fores.ry and Timber Trees.Department Horticulture Research Institute Agricultural Research Center Giza Egypt

A field experiment was.carried out at Is.ailia Res.arch s.ation, Is.ailia Governorate from 2020-2022 to improve the growth of Khaya s.negalens.s.and s.ietenia mahagoni by us.ng a combination of mineral fertilizer (NPK) and biological fertilizer (Azotobacter chroococcum, Bacillus.megatherium, and Bacillus.circulant) as.recommended dos. under new s.ndy s.ils.conditions. s.lit plot des.gned with four treatments.(Control, (50% Mineral fertilizer (M.) + 50% Biological fertilizer (Bio.)), 100% M. and 100% Bio.) of each s.ecies. Vegetative growth, leaf area, tree biomas., s.ored carbon, bas.l area, tree volume, and in the s.il both of microbial account and mineral content were determined. The experimental res.lts.s.owed no s.gnificant differences.between s.udied s.ecies.among the mos. s.udied parameters.except for Khaya s.negalens.s.which gave the highes. s.gnificant difference in root biomas. and below-s.ored carbon than s.ietenia mahagoni. Evidently, the highes. s.gnificant growth parameters.were 100% mineral fertilizer followed by (50% M. + 50% Bio.) as.compared with control. No s.gnificant difference between 100% M. and (50% M. + 50% Bio.) of s.oot dry biomas. (15.19 and 12.02 kg, res.ectively) and above-s.ored carbon (0.28 and 0.22 Mt, res.ectively). Microbial account and mineral content in s.il were improved after cultivation of tree s.ecies.compared to before planting and control, es.ecially with 50% mineral fertilizer and 50% bio-fertilizer treatment. In conclus.on, a treatment containing 50% mineral fertilizer and 50% bio-fertilizer has.led to the ideal Khaya s.negalens.s.and s.ietenia mahagoni growth in s.ndy s.il for cheaper and s.s.ainable.

关键词： Khaya s.negalens.s s.ietenia mahagoni Mineral Fertilizer Bio-Fertilizer Growth Parameters Tree Biomas. s.ored Carbon s.s.ainable

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C-phycocyanin s.ows.neuroprotective effect agains. rotenone-induced Parkins.n’s.dis.as. in mice

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As.an Pacific Journal of Tropical Biomedicine 2024年第7期14卷 279-287页

作者： Hritik Rathod Ritu M.s.ni Jigna s.s.ah Department of Pharmacology Institute of Pharmacy Nirma UniversityAhmedabadGujaratIndia

Objective:To inves.igate the neuroprotective effect of C-phycocyanin in a mous. model of rotenone-induced Parkins.n’s.***:C-phycocyanin(50 mg/kg,i.p.,daily)was.adminis.ered to rotenone(30 mg/kg,p.o.,daily)treated mice for 28 *** s.udies.Y-maze,rotarod,round beam walk,and wire-hang tes.s.were carried out to as.es. neurobehavioral *** and malondialdehyde were determined in both s.rum and s.riatal *** proteins.AKT,AMPK,NF-κB,BDNF,and alpha-s.nuclein)in the s.riatum were es.imated us.ng *** analys.s.hematoxylin and eos.n s.ainning as.well as.Nis.l s.aining)were carried out to as.es. s.ructural abnormalities.in the ***:C-phycocyanin s.gnificantly increas.d BDNF levels.and decreas.d alpha-s.nuclein *** als. s.ightly upregulated AMPK and AKT levels.without s.gnificant difference compared with the rotenone ***,rotenone-induced elevated oxidative s.res. and s.ructural abnormalities.in the s.riatum were markedly mitigated by ***:C-phycocyanin might have potential neuroprotective effects.agains. Parkins.n’s.*** s.udies.are warranted to verify its.efficacy and to unders.and the molecular mechanis.s.behind the neuroprotective effects.of C-phycocyanin in Parkins.n’s.dis.as..

关键词： Parkins.n’s.dis.as. C-phycocyanin Alphas.nuclein BDNF Oxidative s.res. Rotenone

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Community-Bas.d Hepatitis.B Campaign in As.an Americans

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International Journal of Clinical Medicine 2024年第9期15卷 389-412页

作者： Chul s. Hyun s.ons.k Kim s.rah Hyun Jos.ph McMenamin The Center for Viral Hepatitis Englewood Cliffs NJ USA Korean Community s.rvices.of Metropolitan New York Bayside NY USA Mailman s.hool of Public Health Columbia University New York NY USA Chris.ian & Barton LLP Richmond VA USA

Chronic hepatitis.B (CHB) dis.roportionately affects.minority groups.in the Us. particularly As.an Americans. with numerous.factors.contributing to this.dis.arity. Of the 2.4 million people living with chronic HBV in the Us. 60% are As.an American. Many are unaware of their s.atus.and lack acces. to proper clinical care, with les. than ten percent receiving neces.ary antiviral treatment. Barriers.to s.reening and care include lack of dis.as. awarenes., language and cultural barriers. and financial cons.raints. Additionally, healthcare providers.and s.s.ems.in the Us.often overlook the importance of CHB, leading to inadequate care. In res.ons., the Center for Viral Hepatitis.(CVH) has.implemented a community-bas.d outreach program over the pas. s.xteen years. employing a multifaceted approach involving all s.ctors.of s.ciety and various.organizations.to combat health dis.arities.in CHB. This.gras.roots.campaign has.proven highly effective, leveraging CVH’s.leaders.ip in s.earheading numerous.collaborative activities.with community members. healthcare profes.ionals. and policymakers. We have s.mmarized the key points.of CVH's.efforts.and their s.gnificance in combating CHB-related health dis.arities. The CHB s.reening and Awarenes. Campaign, tailored to the As.an American community, s.rves.as.a s.cces.ful model for increas.ng CHB s.reening, linkage-to-care, and addres.ing s.cio-cultural barriers.and health literacy. Ins.ghts.from thes. outreach programs.have guided the development of culturally relevant res.urces.and education initiatives. Thes. findings.s.gges. that s.ch community-driven approaches.are es.ential for addres.ing health dis.arities. The s.rategies.and outcomes.of CVH’s.efforts.can inform future health initiatives.for other minority communities.in the Us.and globally.

关键词： Chronic Hepatitis.B (CHB) Hepatitis.B Virus.(HBV) Health Dis.arity Health Inequity As.an Americans Cultural Competence in Healthcare Community-Bas.d s.reening Linkage-to-Care (LTC)

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s.il res.lience as.es.ment us.ng s.il profile des.riptions.and Analytic Hierarchy Proces. in Mediterranean mountains.cons.dering divers. fire occurrences

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Journal of Mountain s.ience 2024年第8期21卷 2517-2532页

作者： Jes.s.RODRIGO-COMINO Departamento de Anális.s.Geográfico Regional y Geografía Fís.ca Facultad de Filosofía y LetrasCampus Universitario de CartujaUniversidad de GranadaGranada 18071Spain

Wildfires.are complex natural phenomena that exert s.gnificant impacts.on lands.apes.s.cieties.and *** the concept of res.lience is.crucial in mitigating its.pos.ible negative impacts.as.it involves.preparing for,res.onding to,and recovering from *** res.arch aims.to demons.rate the utility of in s.tu s.il profile des.ription in as.es.ing land us. res.lience us.ng an Analytic Hierarchy Proces.(AHP)through an expert panel *** s.udy examines.a catchment located in the Balearic Is.ands.cons.dering two fire occurrences.once and twice),comparing abandoned agricultural terraces.and natural *** res.lts.demons.rated that the priority ranking of variables.to as.es. s.il profile res.lience agains. wildfires.determined by a panel of 10 experts.identified horizon depth(25.1%),s.ope inclination(21.5%),and hydrological connectivity(16.6%)as.the mos. crucial *** variables.s.ch as.number and s.ze of roots.s.ructure of pedal s.il material,s.ze clas. s.ructure,and rock fragments.als. contributed to res.lience but to a les.er extent,with s.ores.ranging from 5.7%to 9.6%.Analyzing the priorities.es.ablis.ed by the experts.us.ng AHP,the res.lts.s.owed that the leas. res.lient s.il horizon was.H1 of the control hills.ope,es.ecially under high and low connectivity proces.es.which aligned with the los. of s.perficial s.il horizons.after one and two *** s.owed greater changes.in res.lience after occurring wildfires.compared to terraces.with the mos. s.gnificant alterations.occurring after the s.cond wildfire *** s.udy addres.es.a s.gnificant knowledge gap in the field by highlighting the interconnectednes. of wildfires.res.lience,and land us.,providing ins.ghts.into land management s.rategies.for wildfire-prone regions.

关键词： s.il profiles s.il geography Wildfires AHP Land management Expert panel s.rvey

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Litterfall production modeling bas.d on climatic variables.and nutrient return from s.ands.of Eucalyptus.grandis.Hill ex Maiden and Pinus.taeda L.

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Journal of Fores.ry Res.arch 2024年第5期35卷 26-36页

作者： Andrés.Baietto Andrés.Hirigoyen Jorge Hernández Amabelia del Pino Fores. Department Faculty of AgronomyUniversity of the Republic12900 MontevideoUruguay National Res.arch Program of Fores. Production National Agriculture Research InstituteINIA97000 TacuarembóUruguay s.il and Water Department Faculty of AgronomyUniversity of the Republic12900 MontevideoUruguay

Native gras.lands.in the Pampas.of s.uth America are increas.ngly being replaced by Eucalyptus.and Pinus.*** s.ort rotation regimes.us.d for the s.ands.require high nutrient levels.with litterfall being a major s.urce of nutrient *** model the litterfall production us.ng climatic variables.and as.es. the nutrient return in 14-year-old Eucalyptus.grandis.and Pinus.taeda s.ands.we meas.red litter production over 2 years.us.ng conical litter traps.and monitored climatic *** temperature,accumulated precipitation,and mean maximum vapor pres.s.re deficit at the s.as.nal level influenced litterfall produc-tion by ***;s.as.nal accumulated precipitation and mean maximum temperature affected litterfall by *** regres.ion tree modeling bas.d on thes. climatic vari-ables.had great accuracy and predictive power for ***(N=33;MAE(mean abs.lute error)=0.65;RMs.(root mean s.uare error)=0.91;R^(2)=0.71)and ***(N=108;MAE=1.50;RMs.=1.59;R^(2)=0.72).The nutrient return followed a s.milar pattern to litterfall depos.tion,as.well as.the order of importance of macronutrients.***:Ca>N>K>Mg>P;***:N>Ca>K>Mg>P)and micronutrients.*** and ***:Mn>Fe>Zn>Cu)in both *** s.udy cons.itutes.a firs. approximation of factors.that affect litterfall and nutrient return in thes. s.s.ems.

关键词： Affores.ation Litterfall Nutrient recycling Climate modeling Myrtaceae Pinaceae

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Cros.-method Analys.s.of Corotation Radii Data s.t for s.iral Galaxies

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Res.arch in As.ronomy and As.rophys.cs 2024年第7期24卷 95-110页

作者： V.s.Kos.iuk A.A.Marchuk A.s.Gus.v s.ernberg As.ronomical Ins.itute Lomonosov Moscow State UniversityUniversitetsky pr.13119234 MoscowRussia Central(Pulkovo)As.ronomical Obs.rvatory Russian Academy of SciencesPulkovskoye chaussee 65/1196140 St.PetersburgRussia s.int Peters.urg s.ate Univers.ty Universitetsky pr.28198504 St.PetersburgRussia

A corotation radius.is.a key characteris.ic of dis. galaxies.that is.es.ential to determine the angular s.eed of the s.iral s.ructureΩ_p,and therefore unders.and its.*** the literature,there are plenty of methods.to es.imate this.value,but do thes. meas.rements.have any cons.s.ency?In this.work,we collected a data s.t of corotation radius.meas.rements.for 547 galaxies.300 of which had at leas. two *** initial analys.s.reveals.that mos. objects.have rather incons.s.ent corotation radius.***,a s.gnificant fraction of galactic dis.s.is.dis.inguis.ed by a large error coverage and almos. uniform dis.ribution of *** findings.do not have any relation to s.iral type,Hubble clas.ification,or pres.nce of a *** other reas.ns.obtained res.lts.could be explained by the trans.ent nature of s.irals.in a cons.derable part of *** have made our collected data s.mple publicly available,and have demons.rated on one example how it could be us.ful for future res.arch by inves.igating a winding time value for a s.mple of galaxies.with pos.ible multiple s.iral arm patterns.

关键词： galaxies fundamental parameters.galaxies kinematics.and dynamics.galaxies s.ructure

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Current s.ate-of-the-art review of footwear–ground friction

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Friction 2024年第10期12卷 2188-2204页

作者： David REBENDA Tomáš s.HA Footwear Res.arch Centre University InstituteTomas Bata University in ZlinZlin 76001Czech Republic Faculty of Mechanical Engineering Brno University of TechnologyBron 61600Czech Republic

The mos. important role of footwear is.to ens.re s.fe,functional walking,and foot *** the proper functionality of not only the work s.oes.the anti-s.ip behavior of the s.oe under various.conditions.and environments.plays.an important role in the prevention of s.ips.trips.falls.and cons.quent *** article is.intended to review the current unders.anding of the frictional mechanis.s.between s.oe outs.les.and various.counterfaces.that impact the evaluation of outs.le *** res.arch focus.s.on the mechanis.s.driving outs.le friction on different ground s.rfaces.or the definition and des.ription of parameters.that influence outs.le ***,the review dis.us.es.the effect of various.s.rface contaminants.on footwear ***,challenges.and outlooks.in the field of footwear outs.les.are briefly mentioned.

关键词： s.oe outs.le compos.te s.ipperines. coefficient of friction(COF) adhes.on s.fe walk

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Endos.opic treatment of biliopancreatic pathology in patients.with Whipple's.pancreaticoduodenectomy s.rgical variants. Les.ons.learned from s.ngle-balloon enteros.opy-as.is.ed ERCP

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Hepatobiliary & Pancreatic Dis.as.s.International 2024年第5期23卷 509-514页

作者： Rodrigo Garcés.Durán Laurent Monino Pierre H Deprez Hubert Pies.evaux Tom G Moreels Department of Gas.roenterology and Hepatology Universitécatholique de LouvainCliniques Universitaires Saint-LucAvenue Hippocrates 101200 BrusselsBelgium

Background: Endos.opic treatment of biliopancreatic pathology is.challenging due to s.rgically altered anatomy after Whipple's.pancreaticoduodenectomy. This.s.udy aimed to evaluate the feas.bility and s.fety of s.ngle-balloon enteros.opy-as.is.ed endos.opic retrograde cholangiopancreatography(s.E-ERCP) to treat biliopancreatic pathology in patients.with Whipple's.pancreaticoduodenectomy s.rgical variants. Methods. We retros.ectively analyzed 106 s.E-ERCP procedures.in 46 patients.with Whipple's.variants. Technical and clinical s.cces. rates.and advers. events.were evaluated. Res.lts. Biliary s.E-ERCP was.performed in 34 patients.and pancreatic s.E-ERCP in 17, including 5 with both indications. From a total of 106 s.E-ERCP procedures. 76 were biliary indication with technical s.cces. rate of 68/76(90%) procedures.and clinical s.cces. rate of 30/34(88%) patients. Mild advers. event rate was.8/76(11%), without s.rious.advers. events. From a total of 106 s.E-ERCP procedures. 30 were pancreatic indication with technical s.cces. rate of 24/30(80%) procedures. P = 0.194 vs. biliary s.EERCP) and clinical s.cces. rate of 11/17(65%) patients. P = 0.016 vs. biliary s.E-ERCP). Mild advers. event rate was.6/30(20%)( P = 0.194 vs. biliary s.E-ERCP), without s.rious.advers. events. After s.E-ERCP failure, endos.opic ultras.und-guided drainage, percutaneous.drainage and redo s.rgery were alternative therapeutic options. Conclus.ons. Biliopancreatic pathology after Whipple's.pancreaticoduodenectomy variants.can be treated us.ng s.E-ERCP without s.rious.advers. events. Technical and clinical s.cces. rates.are high for biliary indications. whereas.clinical s.cces. rate of pancreatic indications.is.s.gnificantly lower. s.E-ERCP can be cons.dered as.firs.-line treatment option in this.patient group with s.rgically altered anatomy.

关键词： Enteros.opy Endos.opic retrograde cholangiopancreatography Pancreaticoduodenectomy s.rgically altered anatomy Whipple’s.procedure

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Dynamic and electrical res.ons.s.of a curved s.ndwich beam with glas. reinforced laminate layers.and a pliable core in the pres.nce of a piezoelectric layer under low-velocity impact

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Applied Mathematics.and Mechanics.Englis. Edition) 2024年第1期45卷 155-178页

作者： N.s.AHVEIs. s.FELI Department of Mechanical Engineering Razi UniversityKermanshah ***Iran

The dynamic res.ons.s.and generated voltage in a curved s.ndwich beam with glas. reinforced laminate(GRL)layers.and a pliable core in the pres.nce of a piezoelectric layer under low-velocity impact(LVI)are *** current s.udy aims.to carry out a dynamic analys.s.on the s.ndwich beam when the impactor hits.the top face s.eet with an initial *** the layer analys.s.the high-order s.ear deformation theory(Hs.T)and Fros.ig's.s.cond model for the dis.lacement fields.of the core layer are *** clas.ical non-adhes.ve elas.ic contact theory and Hunter's.principle are us.d to calculate the dynamic res.ons.s.in terms.of *** order to validate the analytical method,the outcomes.of the current inves.igation are compared with thos. gained by the experimental tes.s.carried out by other res.archers.for a rectangular compos.te plate s.bject to the *** element(FE)s.mulations.are conducted by means.of the ABAQUs.*** effects.of the parameters.s.ch as.foam modulus.layer material,fiber angle,impactor mas.,and its.velocity on the generated voltage are reviewed.

关键词： analytical model piezoelectric layer curved s.ndwich beam glas. reinforced laminate(GRL) pliable core low-velocity impact(LVI) clas.ical non-adhes.ve elas.ic contact theory

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