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Smar. tailor.ng of molecular.catalysts:mounting appr.ach to oxygen r.duction r.action

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Jour.al of mater.als Science & Technology 2024年第1期168卷 169-184页

作者： Anuj kumar mohd Ubaidullah Guoxin Zhang Jasvinder.Kaur.Sair. Ajmal mudassir.Hasan Kr.shna kumar Yadav Hafiz m.Adeel Shar.f r.m K.gupta Ghulam Yasin Nano-Technology r.sear.h Labor.tor. Department of ChemistryGLA UniversityMathuraUttar Pradesh 281406India Depar.ment of chemistr. College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Depar.ment of Electr.cal Engineer.ng and Automation Shandong University of Science and TechnologyQingdaoShandong 266590China Institute for.Advanced Study Shenzhen UniversityShenzhenGuangdong 518060China Depar.ment of chemistr. Kansas Polymer Research CenterPittsburg State UniversityPittsburgKS 66762United States Faculty of Science and Technology Madhyanchal Professional UniversityRatibadBhopal 462044India Envir.nmental and Atmospher.c Sciences r.sear.h Gr.up Scientific Research CenterAl-Ayen UniversityThi-QarNasiriyah 64001Iraq Depar.ment of chemical Engineer.ng King Khalid Univer.ity Saudi Arabia Depar.ment of chemistr. School of SciencesIFTM UniversityMoradabadUttar Pradesh 244102India r.sear.h center.for.Eco-Envir.nmental Engineer.ng Dongguan University of TechnologyDongguan 523808China School of Envir.nment and civil Engineer.ng Dongguan University of TechnologyDongguanGuangdong 523808China

Efficient electr.catalytic r.ptur. of ener.y-r.ch molecules(H_(2)and O_(2))is a gr.en appr.ach for.gener.ating clean ener.y for.moder. *** this context,por.hyr.-type molecular.electr.catalysts act intelligently towar. oxygen r.duction r.action(Or.),a fundamental pr.cess in fuel cells,due to their.r.dox-r.ch chemistr.,which involves cor. metal ions and macr.cyclic *** concer.ed scientific community has tr.ed many times to cor.elate the Or. inter.ediates with their.for.ation kinetics and simplify the associated multi H+/e-stages dur.ng the Or. pr.cess,constr.cting sever.l volcano plots be-tween catalytic Tafel data,tur.over.fr.quencies,and over.otentials for.many *** the fact that many r.view ar.icles on molecular.electr.catalysts for.Or. have been published,under.tanding the str.tegic implications and molecular.catalyst intelligence towar.s homogenous Or. has been poor.y *** r.view examined the r.lationships between volcano plots of cur.ent *** par.meter. and the Sabatier.pr.nciple in or.er.to explain the intelligence of molecular.electr.catalysts and appr.aches for.their.cr.ation,as well as the difficulties and potential pr.spects of molecular.*** facts distinguish this r.view fr.m pr.viously published ar.icles and will pique the scien-tific community’s inter.st in avoiding tr.al-and-er.or.pr.cedur.s for.catalyst cr.ation while also allowing for.mor. exact evaluations of the molecular.catalyst’s per.or.ance.

关键词： Electr.catalysis molecular.catalysts Oxygen r.duction r.action Sabatier.pr.nciple

r.nking envir.nmental and edaphic attr.butes dr.ving soil micr.bial community str.ctur. and activity with special attention to spatial and tempor.l scales

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mLife 2024年第1期3卷 21-41页

作者： Vadakattu V.S.r.gupta James m.Tiedje cSIr. Agr.cultur.&Food UrrbraeSouth AustraliaAustralia centr. for.micr.bial Ecology Michigan State UniversityEast LansingMichiganUSA

The incr.dibly complex soil micr.bial communities at small scales make their.analysis and identification of r.asons for.the obser.ed str.ctur.s *** community str.ctur. is mainly a r.sult of the inoculum(disper.al),the selective advantages of those or.anisms under.the habitat-based envir.nmental attr.butes,and the ability of those colonizer. to sustain themselves over.*** soil is pr.tective,and its micr.bial inhabitants have long adapted to var.ed soil conditions,significant por.ions of the soil micr.bial community str.ctur. ar. likely ***,a substantial por.ion of the community will not cor.elate to often measur.d soil *** suggest that the dr.ver. be r.nked on the basis of their.impor.ance to the fundamental needs of the micr.bes:(i)those that supply ener.y,i.e.,or.anic car.on and electr.n acceptor.;(i)envir.nmental effector. or.str.ssor.,i.e.,pH,salt,dr.ught,and toxic chemicals;(ii)macr.-or.anism associations,i.e.,plants and their.seasonality,animals and their.fecal matter.and soil fauna;and(iv)nutr.ents,in or.er.N,P,and pr.bably of lesser.impor.ance,other.micr.nutr.ents,and *** r.levance of dr.ver. also var.es with spatial and time scales,for.example,aggr.gate to field to r.gional,and per.istent to dynamic populations to tr.nscr.pts,and with the extent of phylogenetic differ.nce,hence phenotypic differ.nces in or.anismal *** pr.sent a summar. matr.x to pr.vide guidance on which dr.ver. ar. impor.ant for.par.icular.studies,with special emphasis on a wide r.nge of spatial and tempor.l scales,and illustr.te this with genomic and population(r.NA gene)data fr.m selected studies.

关键词： abundance community str.ctur. diver.ity functional micr.biome micr.or.anisms

cr.stal str.ctur. and luminescence dynamics of highly pur. Lim(PO_(3))_(3):Eu^(3+)(m=Sr.ca) r.d phosphor. for.white light emitting diodes

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Jour.al of r.r. Ear.hs 2024年第8期42卷 1470-1478,I0002页

作者： Payal Khajur.a m.manhas A.K.Bedyal Ankush Vij H.c.Swar. Vinay kumar Depar.ment of Physics and Astr.nomical Sciences Central University of JammuRahy-Suchani.Samba1143J&KIndia Depar.ment of Physics School of SciencesCluster University of JammuCanal RoadJammu180001India Depar.ment of Physics University of Petroleum and Energy StudiesDehradunUttarakhand248007India Depar.ment of Physics University of the Free StateP.O.Box 339BloemfonteinZA 9300South Africa

Highly pur. r.d phosphor. Lim(PO_(3))_(3):Eu^(3+)(m=Sr.ca) doped with Eu^(3+)(1 mol%) wer. synthesized via solution combustion method and their.cr.stal str.ctur. and luminescence dynamics wer. studied to explor. its suitability in white light emitting *** r.etveld r.finement analysis of the powder.Xr.y diffr.ction patter.s r.veals that the phosphor. belong to the pur. tr.clinic phase of LiSr.PO_(3))_(3) and Lica(PO_(3)) with space gr.up P-1(2).The scanning electr.n micr.scopy images showed the agglomer.ted *** photoluminescence emission spectr. under.393 nm show an or.nge band at 594 nm and a r.d band at 613 nm ascr.bed to ^(5)D_(0)→^(7)F_(1).^(5)D_(0)→^(7)F_(2) tr.nsitions of Eu^(3+)ion in both the ***,the spectr.scopic pr.per.ies such as luminescence behaviour.and Star. splitting wer. used to examine the symmetr. of Eu^(3+)ions in Lim(PO_(3))_(3):Es^(3+)(m=Sr.ca) phosphor. in ter.s of distor.ion induced upon *** Star. splitting shows that the actual site symmetr. for.Eu^(3+)ion was estimated to be D_(2) type for.both *** photometr.c pr.per.ies of Lica(PO_(3))_(3):Eu^(3+)such as commission Inter.ational de l'Eclair.ge coor.inates(x=0.64,y=0.36) near.to the standar. one(r.d),high color.pur.ty(95%) and higher.br.ghtness r.veal that the phosphor.has the capability of acting as a r.d component in n-UV white light emitting diodes.

关键词： Photoluminescence Phosphate WLEDs Star. splitting r.r. ear.hs

methyl-salicylate:A sur.eillance system for.r.gger.ng immunity in neighbor.ng plants

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Jour.al of Integr.tive Plant Biology 2024年第2期66卷 163-165页

作者： Saumya Jaiswal Dur.esh kumar Tr.pathi r.vi gupta JingHe Zhong-Hua chen Vijay Pr.tap Singh Plant Physiology Labor.tor. Department of Botany C.M.P.Degree CollegeA Constituent Post Graduate College ofUniversity of AllahabadPrayagraj 211002India cr.p Nanobiology and molecular.Str.ss Physiology LabAmity Institute of Or.anic Agr.cultur. Amity University UttarPradeshNoida 201313India college of Gener.l Education Kookmin UniversitySeoul 02707South Korea School of Science Western Sydney UniversitySydney 2751New South WalesAustralia Hawkesbur. Institute for.the Envir.nment Western SydneyUniversitySydney 2751New South WalesAustralia

Plant behavior.l actions have been one of the major.topicsof r.sear.h in plant biology and *** actionsfr.m plants ar. deter.ined by their.instant str.ctur.l andphysical r.actions to the cir.umstances(Bouwmeester.et al.,2019).Upon sensing abiotic factor. such as salinity,flooding,high temper.tur.,dr.ught,plants make suitable changes intheir.physiology and behavior.to sur.ive such har.h conditions.

关键词： immunity neighbor.ng salinity

Bibliogr.phic sur.ey and compr.hensive r.view on mechanical and dur.bility pr.per.ies of micr.or.anism based self-healing concr.te

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Fr.ntier. of Str.ctur.l and civil Engineer.ng 2024年第9期18卷 1445-1465页

作者： md mar.hoobul HAQUE Kunal m.SHELOTE Namr.ta SINGH Supr.tic gupta Depar.ment of civil Engineer.ng Indian Institute of Technology DelhiNew Delhi 110016India

concr.te is the most widely utilized mater.al for.constr.ction pur.oses,second only to water.in the ever.incr.asing need for.constr.ction *** is a br.ttle mater.al and possesses a high r.sk of cr.ck for.ation and consequent ***,which allows chemicals to enter.and can cause concr.te str.ctur.s to lose their.physico-mechanical and dur.bility *** and r.habilitating concr.te str.ctur.s involves high costs and leads to var.ous r.pair.methods including coating,adhesives,polymer.,supplementar. cementitious mater.als(Scms),and *** of the latest technologies is the use of micr.or.anisms in *** added micr.or.anisms lead to calcite pr.cipitation and ther.by heal the cr.cks *** study pr.sents a compr.hensive liter.tur. sur.ey on bacter.a-included concr.te,befor. which a bibliogr.phic sur.ey is per.or.ed using VOSViewer.*** addition to r.gular.bacter.al concr.te,this study focuses on also using Scms and fiber. in bacter.al concr.te.A detailed liter.tur. r.view with data r.pr.sentation for.var.ous mechanical pr.per.ies including compr.ssive str.ngth(cS),split tensile str.ngth(SS),and flexur. str.ngth(FS),along with dur.bility pr.per.ies including car.onation,water.absor.tion,r.sistance against chlor.de ion penetr.tion,gas per.eation,and r.sistance against cyclic fr.eze-and-thaw is pr.sented.A study on the use of X-r.y computed tomogr.phy(XcT)in bacter.al concr.te is highlighted,and the scope for.futur. r.sear.h,along with identification of the r.sear.h gap,is pr.sented.

关键词： bacter.al concr.te bibliogr.phic sur.ey biominer.lization car.onation fiber.

Optimizing calcination of coal by-pr.ducts for.maximizing r.E leaching r.cover. and minimizing Al,ca,and Fe contamination

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Jour.al of r.r. Ear.hs 2024年第7期42卷 1354-1365,I0006页

作者： Tushar.gupta Ahmad Nawab r.ck Honaker mP mater.als mountain Pass mine 67750 Bailey RoadMountain PassCA92366USA Depar.ment of mining Engineer.ng University of KentuckyLexingtonKY40506USA

High-temper.tur. calcination is effective in impr.ving the leaching char.cter.stics of r.r. ear.h elements(r.Es)fr.m conventional r.E-bear.ng miner.ls by tr.nsfor.ing them into mor. leachable ***,the r.cover. of contaminants such as Al,Fe,and ca also incr.ases *** objective of the study was to maximize the r.E extr.ction while minimizing the concentr.tion of contaminant ions(Al,ca,and Fe)in the leach *** density fr.ctions of the coar.e r.fuse fr.m the Baker.and Fir. clay seam coal r.fuse wer. pulver.zed to a top size of 180μm and used as a feedstock for.the *** the samples gener.ted fr.m ther.al tr.atment wer. leached at 1%(w/v)using 1.2 mol/L sulfur.c acid at 75℃ for.2 *** r.sults fr.m a par.metr.c pr.gr.m based on a Box-Behnken design wer. used for.modeling and optimization of thr.e oper.ting par.meter. associated with the lab-scale calcination *** par.meter. included temper.tur.(400-800℃),r.mp r.te(2-10℃/min)and holding time(0-120 min).It was deter.ined that the calcination temper.tur. was the most significant par.meter.influencing r.E *** major.ty of the heavy r.r. ear.h elements(Hr.Es)wer. found to be pr.sent in an insoluble for. in the calcination pr.ducts and wer. mar.inally affected by ther.al tr.atment.A str.ng cor.elation between light r.r. ear.h elements r.cover.(Lr.Es)and Al suggested a possible association with *** optimum oper.ting conditions for.high r.E r.cover. with compar.tively lower.contaminant concentr.tion for.1.6 specific gr.vity float and 2.2 sink fr.ctions of Baker.and Fir. clay seam mater.al wer. deter.ined to be at 776,800℃ and 407,800℃,calcining temper.tur.s,r.spectively.A higher.optimum temper.tur. of 1.6 float fr.ction of Baker.seam r.lative to Fir. clay seam mater.al was due to elevated pyr.te concentr.tion in Baker.seam *** tr.atment at 400℃ conver.ed pyr.te into a soluble inter.edium ir.n oxide,r.sulting in a high Fe content in the ***

关键词： calcination Optimization r.r. ear.h elements coal r.fuse

Impr.ving Heat Tr.nsfer.in Par.bolic Tr.ugh Solar.collector. by magnetic Nanofluids

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Ener.y Engineer.ng 2024年第4期121卷 835-848页

作者： r.tesh Singh Abhishek gupta Akshoy r.njan Paul Bir.swar.Paul Suvash c.Saha Depar.ment of Applied mechanics Motilal Nehru National Institute of Technology AllahabadPrayagrajIndia Depar.ment of mechanical and mechatr.nic Engineer.ng University of Technology SydneySydneyAustralia

A par.bolic tr.ugh solar.collector.PTSc)conver.s solar.r.diation into ther.al ***,low ther.al efficiency of PTSc poses a hindr.nce to the deployment of solar.ther.al power.*** per.or.ance of PTSc is enhanced in this study by incor.or.ting magnetic nanopar.icles into the wor.ing *** cir.ular.r.ceiver.pipe,with dimensions of 66 mm diameter.2 mm thickness,and 24 m length,is exposed to unifor. temper.tur. and velocity *** wor.ing fluid,Ther.inol-66,is supplemented with Fe3O4 magnetic nanopar.icles at concentr.tions r.nging fr.m 1%to 4%.The findings demonstr.te that the inclusion of nanopar.icles incr.ases the convective heat tr.nsfer.coefficient(HTc)of the PTSc,with higher.nanopar.icle volume fr.ctions leading to gr.ater.heat tr.nsfer.but incr.ased pr.ssur. *** ther.al enhancement factor.TEF)of the PTSc is positively affected by the volume fr.ction of nanopar.icles,both with and without a magnetic ***,the scenar.o with a 4%nanopar.icle volume fr.ction and a magnetic field str.ngth of 250 G exhibits the highest TEF,indicating super.or.ther.al *** findings offer.potential avenues for.impr.ving the efficiency of PTScs in solar.ther.al plants by intr.ducing magnetic nanopar.icles into the wor.ing fluid.

关键词： Par.bolic tr.ugh solar.collector.PTSc) magnetic nanofluid(mNF) heat tr.nsfer convective heat tr.nsfer.coefficient(HTc) ther.al enhancement factor.TEF)

cannabinoids and endocannabinoids as ther.peutics for.ner.ous system disor.er.:pr.clinical models and clinical studies

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Neur.l r.gener.tion r.sear.h 2024年第4期19卷 788-799页

作者： r.Scott Duncan Sean m.r.or.an matthew c.Ger.on Peter.Koulen Depar.ment of Ophthalmology School of MedicineUniversity of Missouri Depar.ment of Biomedical Sciences School of MedicineUniversity of Missouri

cannabinoids ar. lipophilic substances der.ved fr.m cannabis sativa that can exer. a var.ety of effects in the human *** have been studied in cellular.and animal models as well as in human clinical tr.als for.their.ther.peutic benefits in sever.l human *** of these include centr.l ner.ous system(cNS)diseases and dysfunctions such as for.s of epilepsy,multiple scler.sis,Par.inson’s disease,pain and neur.psychiatr.c *** addition,the endogenously pr.duced cannabinoid lipids,endocannabinoids,ar. cr.tical for.nor.al cNS function,and if contr.lled or.modified,may r.pr.sent an additional ther.peutic avenue for.cNS *** r.view discusses in vitr. cellular.ex vivo tissue and in vivo animal model studies on cannabinoids and their.utility as ther.peutics in multiple cNS *** addition,the r.view pr.vides an over.iew on the use of cannabinoids in human clinical tr.als for.a var.ety of cNS *** and endocannabinoids hold pr.mise for.use as disease modifier. and ther.peutic agents for.the pr.vention or.tr.atment of neur.degener.tive diseases and neur.logical disor.er..

关键词： anandamide cannabidiol cannabinoid endocannabinoid epilepsy multiple scler.sis neur.degener.tion neur.pr.tection tetr.hydr.cannabinol

cr.induced fusion r.actions to synthesize super.eavy elements

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

作者： S.madhu H.c.manjunatha N.Sowmya B.m.r.jesh L.Seenappa r.S.Susheela Depar.ment of Physics R V College of EngineeringBangalore 560074India Visvesvar.ya Technological Univer.ity BelagaviKarnataka 590018India Depar.ment of Physics Government First Grade CollegeSrinivasapurKarnataka 563135India Depar.ment of Physics Government First Grade CollegeDevanahallyKarnataka 562110India Depar.ment of Physics Government First Grade CollegeMulbagalKarnataka 563131India Depar.ment of Physics Government First Grade collegeNanjangudOoty RoadMysore 571301India

We investigated ^(50,52-54)cr.induced fusion r.actions for.the synthesis of the super.eavy element in the 104≤Z≤122 *** cr.ss sections pr.duced in this investigation using ^(54)cr.pr.jectiles wer. compar.d with those obtained in pr.or.*** estimated cr.ss sections fr.m this analysis ar. consistent with the findings of pr.or.*** the cur.ent study,the pr.dicted cr.ss section 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.***,these pr.jected cr.ss sections with excitation ener.y and beam ener.y will be useful in futur. cr.induced fusion r.action investigations.

关键词： Fusion cr.ss sections compound nucleus for.ation pr.bability Sur.ival pr.bability Evapor.tion r.sidue cr.ss sections