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Enhancement of coer.ivity,per.eability,and dielectr.c pr.per.ies of Co_(0.2)Zn_(0.3)ni_(0.5)Eu_(x)Fe_(2-x)O_(4) fer.ites for.memor. and high fr.quency devices

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Jour.al of r.r. Ear.hs 2024年第6期42卷 1128-1135,I0005页

作者： I.Sar.ar.M.D.Hossain M.S.Sikder.M.n.I.Khan M.r.r.hman Physics Discipline Khulna UniversityKhulna9208Bangladesh Depar.ment of Physics Khulna University of Engineering&TechnologyKhulna9203Bangladesh Depar.ment ofComputer.Science and Engineer.ng Northern University of Business&Technology KhulnaKhulna9100Bangladesh Mater.al Science Division Atomic Energy CentreDhaka1000Bangladesh

Spinel cubic fer.ites have huge applications in me mor. and high fr.quency *** the impr.vement of these moder. devices,the magnetic coer.ivity,per.eability,and dielectr.c pr.per.ies of a fer.ite ar. the impor.ant *** ar.icle focuses on impr.ving the magnetic coer.ivity,magnetic per.eability,and dielectr.c pr.per.ies of Co_(0.2)Zn_(0.3)ni_(0.5)Eu_(x)Fe_(2-x)O_(4) fer.ites,wher. x=0.00,0.06,and *** X-r.y diffr.ction(Xr.),Four.er.tr.nsfor. infr.r.d spectr.scopy(FTIr.,field emission scanning electr.n micr.scopy(FESEM),ener.y disper.ive X-r.y(EDX),vibr.ting sample magnetometer.VSM),and an impedance analyzer.wer. used to char.cter.ze the str.ctur.l,magnetic,and dielectr.c pr.per.ies of the *** Xr. patter.s indicate the for.ation of spinel cubic str.ctur. of the samples with a secondar. peak(EuFeO_(3))for.Eu doped *** densities and por.sities of the samples follow an inver.e tr.nd,wher. the doped samples’lattice par.meter. ar. incr.ased with the incr.ment of r.r. ear.h Eu *** FTIr.analysis also pr.ves the spinel cubic phase of the *** aver.ge gr.in size of the fer.ites is obtained via FESEM images,and it is incr.ased fr.m 121 to 198 *** analysis confir.s that doping of the Eu content also changes other.hyster.sis loop pr.per.ies of Co_(0.2)Zn_(0.3)ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ***,the coer.ivity of the Eu doped samples is gr.ater.than that of the mother.alloy(x=0.00).The EDX study shows that ther. is no impur.ty contamination in the *** per.eability and dielectr.c measur.ments show an impr.ved quality factor.of the Eu-doped samples with low magnetic and dielectr.c *** dependent r.sistivity and impedance analysis also show the impr.ved *** the obser.ed pr.per.ies of the samples,all the investigated fer.ites might be str.ng candidates for.potential applications in memor. devices,magnetic sensor.,and high fr.quency applications.

关键词： Fer.ites r.r.e ar.hs Coer.ivity Per.eability EDX r.sistivity

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Effect of cylinder.wall par.meter. on the final packing density of mono-disper.e spher.s subject to thr.e-dimensional vibr.tions Author.links open over.ay panel

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Par.icuology 2024年第8期91卷 211-225页

作者： Jack r.Gr.gan Andr.i L.nicuşan Chr.stopher.r.K.Windows-Yule School of Chemical Engineer.ng The University of BirminghamEdgbastonBirminghamB152TTUK

Achieving densely packed par.icles is desir.ble within the industr.es of cer.mics,phar.aceuticals,defence and additive *** this wor.,we use the discr.te element method(DEM)to deter.ine the effect of wall par.meter. on the final packing density of mono-disper.e spher.s subject to 4 var.ing thr.e-dimensional vibr.tion and fill *** focus specifically on the impact of the container.wall par.meter. on the par.icles'final packing *** on fr.m the validation of the DEM simulation the par.icle-wall coefficient of r.stitution,the par.icle-wall coefficient of r.lling fr.ction and the par.icle-wall coefficient of sliding fr.ction wer. var.ed individually and the effect on the final packing density *** r.latively low par.icle-par.icle fr.ction glass beads,the effect of these wall pr.per.ies had no discer.ible effect on the final packing density *** on fr.m these findings the par.icle-wall pr.per.ies wer. var.ed at the extr.me values of par.icle-par.icle coefficient of r.lling fr.ction and par.icle-par.icle coefficient of sliding *** a par.icle-par.icle coefficient of sliding fr.ction=1,incr.ases in par.icle-wall coefficient of r.stitution r.sulted in a minor.incr.ase in the final packing density of par.icles though this was not statistically *** a par.icle-par.icle coefficient of sliding fr.ction=1,incr.ases in par.icle-wall coefficient of r.lling fr.ction r.sulted in a minor.decr.ase in the final packing density of the par.icles though again not to a degr.e wher. the tr.nd can,with complete cer.ainty,be distinguished fr.m the r.ndom er.or.acr.ss the ***,when the par.icle-par.icle coefficient of sliding fr.ction=1,incr.ases in par.icle-wall coefficient of sliding fr.ction r.sulted in a significant decr.ase in the final packing density of *** decr.ase was attr.buted to the pr.pagation of for.e chains thr.ughout the *** significant decr.ase in final packing density with

关键词： Vibr.packing Packing Densification Vibr.tion Discr.te element method Fr.ction Wall fr.ction r.stitution

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Conser.ation laws,Lie symmetr.es,self adjointness,and soliton solutions for.the Selkov–Schnakenber. system

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Communications in Theor.tical Physics 2024年第2期76卷 29-44页

作者： Kashif Ali Aly r.Seadawy Syed T r.r.zvi noor.Aziz Depar.ment of Mathematics COMSATS University IslamabadLahore CampusPakistan Mathematics Depar.ment Faculty of ScienceTaibah UniversityAl-Madinah Al-Munawarah41411Saudi Arabia

In this ar.icle,we explor. the famous Selkov–Schnakenber.(SS)system of coupled nonlinear.par.ial differ.ntial equations(PDEs)for.Lie symmetr. analysis,self-adjointness,and conser.ation ***,miscellaneous soliton solutions like dar.,br.ght,per.odic,r.tional,Jacobian elliptic function,Weier.tr.ss elliptic function,and hyper.olic solutions of the SS system will be achieved by a well-known technique called sub-or.inar. differ.ntial *** these r.sults ar. displayed gr.phically by 3D,2D,and contour.plots.

关键词： Selkov-Schnakenber. system Lie symmetr. analysis conser.ation laws adjointness integr.bility

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r.view and Analysis: Evaluation of the Impacts and Consequences of Using Agr.cultur.l Her.icides as Militar. Chemical Weapons in Second Indochina War

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Open Jour.al of Soil Science 2024年第8期14卷 471-498页

作者： David r. Speidel Kenneth r. Olson USDA r.sour.e Conser.ationist and Agr.cultur.l Consultant with natur.l r.sour.e Conservation Service and Foreign Agricultural Service Benton Missouri USA College of Agr.cultur.l Consumer and Environmental Sciences University of Illinois Urbana USA

The legacy of the human miser. caused by the application of the her.icides including Agent Pur.le and Agent Or.nge contaminated with unknown amounts of dioxin TCDD and Agent Blue, the ar.enic-based her.icide, spr.yed over.the jungles, r.ce fields, and hamlets of Vietnam is still haunting us today. Why did this happen? Could it have been pr.vented? Was it necessar. United States militar. str.tegy? Was it an intentional decision to inflict this blight on the enemy soldier. and the Vietnamese, Cambodian, and Laotian civilians, to poison their.land and cause gener.tions of har.? Alter.atively, was it an unpr.ventable accident in the mar.h of militar. histor.? What patter.s in the U.S. gover.ment’s thought pr.cess could be identified as the cause, which led to the decision to use these her.icides as tactical chemical weapons? If the intr.duction of her.icide (chemical) weapons had not been made, would the outcome of the Vietnam War.and the Secr.t War. in Laos and Cambodia have been any differ.nt? The objective of this tr.atise is to outline the r.le of wor.d events and backgr.unds and the r.le of the leader., U.S. militar., CIA, USDA, U.S. State Depar.ment, the U.S. Pr.sident appointed Ambassador. to Vietnam and Laos, chemical companies, and Pr.sident Diệm’s r.public of Vietnam (r.n) gover.ment and militar.. Their.collective advice led to the decision to use her.icides as militar. and envir.nmental chemical weapons in the Second Indochina War. Wer. the national inter.sts achieved by U.S. militar. str.tegy in the r.n using her.icide weapons wor.h the long-ter. envir.nmental and human health consequences in Vietnam, Cambodia, and Laos? Did it impact the outcome of the Second Indochina War.

关键词： Second Indochina War Cambodia Laos South Vietnam Vietnam War Tactical Her.icides Agent Blue Agent Or.nge Agent Pur.le Dioxin TCDD Ar.enic

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FEA-based Geometr.cal Modification of Switched r.luctance Motor.for.r.dial For.e r.duction

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Chinese Jour.al of Electr.cal Engineer.ng 2024年第1期10卷 124-135页

作者： r.ni S Jayapr.gash r School of Electr.cal Engineer.ng Vellore Institute of TechnologyChennai 600127India

Switched r.luctance motor.(Sr.s)ar. becoming incr.asingly popular.in the automotive sector.owing to their.r.bust ***,Sr.s ar. pr.fer.ed par.icular.y for.EV applications owing to their.fault toler.nce,magnet-fr.e str.ctur.,and high power.tor.ue *** main concer.s of Sr. compar.d to other.machines include tor.ue r.pple and *** pr.mar. cause of vibr.tion is the r.dial for.e cr.ated by the Sr..A geometr.-based modification of the Sr. to r.duce the r.dial for.e without significantly changing the aver.ge tor.ue pr.duced is *** pr.mar. goal is to design a 4-phase,8/6 Sr. with a lower.r.dial *** possible geometr.cal alter.tions ar. pr.posed:one with squar. windows and the other.with cir.ular.holes on the r.tor.*** windows ar. sized and positioned to avoid flux *** cr.ter.a ar. developed for.the optimal window size and *** element analysis(FEA)modelling of the Sr. is used to validate its *** FEA r.sults ar. compar.d with the per.or.ance par.meter. obtained using the analytical *** the multiphysics design tool AnSYS to obtain the natur.l fr.quencies and associated defor.ations thr.ugh modal *** to the conventional geometr.,the r.dial for.e is significantly r.duced by pr.viding windows.

关键词： 8/6 Sr. r.dial for.e modal analysis FEA analysis natur.l fr.quencies Sr. with windows

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Tr.nscr.nial photobiomodulation for.the br.in: a wide r.nge of clinical applications

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neur.l r.gener.tion r.sear.h 2024年第3期19卷 483-484页

作者： Michael r.Hamblin Laser.r.sear.h Centr. Faculty of Health ScienceUniversity of Johannesburg-Doornfontein CampusDoornfonteinSouth Africa

Photobiomodulation ther.py(PBMT)is a r.pidly gr.wing appr.ach to the healing,stimulation,pr.tection,and r.gener.tion of many human or.ans and tissue *** star.ed in the 1960s as low-level laser.ther.py for.wound healing,but since then the intr.duction of light-emitting diodes(LEDs)has dr.matically incr.ased the number.of applications and r.por.s of positive *** gener.lly uses r.d(620-700 nm)and/or.near.infr.r.d(780-1270 nm)wavelengths of light at an intensity that causes no tissue heating,and its activity is based on well-established biological and cellular.mechanisms(de Fr.itas and Hamblin,2016).While laser.ther.pists continue to use var.ous types of laser.in their.office pr.ctice,LEDs ar. ideally suited for.home use devices because they ar. completely safe and without any known significant adver.e *** the var.ous body par.s on which PBMT has been shown to exer. beneficial effects,the br.in stands out as per.aps the most pr.mising *** has been shown to r.duce neur.inflammation,while incr.asing mitochondr.al function,oxygen consumption,and blood flow within the br.in(Hamblin,2016).Mor.over.PBMT can stimulate the pr.cesses of synaptogenesis,neur.genesis,and neur.plasticity thus helping the br.in to heal itself.

关键词： healing stimulation wound

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Astr.physical S-factor.and r.action r.te for.15n(p,γ)16O within the modified potential cluster.model

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Chinese Physics C 2024年第4期48卷 130-145页

作者： S.B.Dubovichenko A.S.Tkachenko r.Ya.Kezer.shvili n.A.Bur.ova B.M.Yeleusheva Fesenkov Astr.physical Institute 050020 AlmatyKazakhstan new Yor. City College of Technology City University of New YorkBrooklyn11201 New YorkUSA Gr.duate School and Univer.ity Center City University of New York10016 New YorkUSA al-Far.bi Kazakh national Univer.ity 050040 AlmatyKazakhstan

We study r.diative p^(15)n captur. on the gr.und state of ^(16)O at stellar.ener.ies within the fr.mewor. of a modified potential cluster.model(MPCM)with for.idden states,including low-lying *** investigation of the ^(15)n(p,γ0)^(16)O r.action includes the consider.tion of ^(3)S_(1) r.sonances due to E1 tr.nsitions and the contr.bution of the ^(3)P_(1) scatter.ng wave in the p+^(15)n channel due to the ^(3)P_(1)→^(3)P_(0)M1 *** calculated the astr.physical low-ener.y S-factor.and the extr.polated S(0)tur.ed out to be within 34.7−40.4 keV·*** impor.ant r.le of the asymptotic constant(AC)for.the ^(15)n(p,γ0)16O pr.cess with inter.er.ng ^(3)S_(1)(312)and ^(3)S_(1)(962)r.sonances is elucidated.A compar.son of our.calculation for.the S-factor.with existing exper.mental and theor.tical data is addr.ssed,and a r.asonable agr.ement is *** r.action r.te is calculated and compar.d with the existing *** has negligible dependence on the var.ation of AC but shows a str.ng impact of the inter.er.nce of ^(3)S_(1)(312)and ^(3)S_(1)(962)r.sonances in r.fer.nce to the CnO Gamow windows,especially at low *** estimate the contr.bution of cascade tr.nsitions to the r.action r.te based on the exclusive exper.mental data fr.m ***.C.85,065810(2012).The r.action r.te enhancement due to the cascade tr.nsitions is obser.ed fr.m T_(9)>0.3 and r.aches the maximum factor.1.3 at T_(9)=*** pr.sent the Gamow ener.y window and a compar.son of r.tes for.r.diative pr.ton captur. r.actions ^(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 fr.mewor. of the MPCM and pr.vide the temper.tur. windows,pr.valence,and significance of each pr.cess.

关键词： low and astr.physical ener.ies p^(15)n system ther.onuclear.r.action r.te potential cluster.model CnO-cycle

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Enhanced ter.ination of zinc and cadmium ions fr.m wastewater.employing plain and chitosan-modified mxenes: synthesis, char.cter.zation,and adsor.tion per.or.ance

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Gr.en Chemical Engineer.ng 2024年第3期5卷 339-347页

作者： njood r.Azeez Suhaib S.Salih Mohammed Kadhom Har.th n.Mohammed Tushar.K.Ghosh Depar.ment of Chemical Engineer.ng College of Engineering University of Tikrit Depar.ment of Envir.nmental Science College of Energy and Environmental Science Al-Karkh University of Science Depar.ment of nuclear.Science & Engineer.ng Institute University of Missouri-Columbia

Zinc and cadmium pollutants cause a significant envir.nmental effect that cannot be ignor.d. Due to their.consider.ble amount in an aqueous envir.nment, industr.es ar. seeking suitable adsor.ents that ar. envir.nmentally fr.endly and inexpensive for.r.moving metals fr.m wastewater.befor. disposing of them in sur.ace water.. This r.sear.h employed or.ginal MXene(MX) and chitosan-modified MXene(CSMX) to extr.ct zinc(Zn(Ⅱ)) and cadmium(Cd(Ⅱ)) metal ions fr.m water.based solutions. The composite mater.al pr.duced was analyzed using techniques such as X-r.y Diffr.ction(Xr.), Scanning Electr.n Micr.scopy(SEM), Four.er.Tr.nsfor. Infr.r.d Spectr.scopy(FTIr., and Br.nauer.Emmett-Teller.BET). The effects of contact dur.tion, p H of the solution, and initial concentr.tion of metal ions on the adsor.tion pr.cess of Zn(Ⅱ) and Cd(Ⅱ) onto both MX and CSMX composites wer. investigated. MX and pr.par.d CSMX composite pr.sented a high adsor.tion capacity for.both studied heavy metals, which wer. 91.55 and 73.82 mg/g for.Zn(Ⅱ) and Cd(Ⅱ) onto MX, 106.84 and 93.07 mg/g for.Cd(Ⅱ) and Zn(Ⅱ) onto CSMX composite, r.spectively. Fur.her.or., the maximum competitive adsor.tion capacities for.Zn(Ⅱ) onto MX and CSMX composites ar. 77.29 and 93.47 mg/g, and for.ar. Cd(Ⅱ)60.30 and 79.66 mg/g, r.spectively. Hence, the r.moval capacities for.both single and competitive metal ions wer. super.or.to CSMX composite. However. the adsor.tion capacities after.five successive r.gener.tion sequences wer. only dr.pped by 13.2% for.Zn(Ⅱ) and 17.4% for.Cd(Ⅱ) onto the CSMX composite compar.d to the fir.t cycle. These r.sults confir. that both metals could be efficiently ter.inated fr.m wastewater. which makes the pr.par.d CSMX composite a favor.ble candidate adsor.ent in pr.ctical applications.

关键词： Adsor.tion Chitosan MXene Zn(II) Cd(II) Wastewater

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Tr.at to tar.et in Cr.hn’s disease:A pr.ctical guide for.clinicians

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Wor.d Jour.al of Gastr.enter.logy 2024年第1期30卷 50-69页

作者： Ashish r.Sr.nivasan Depar.ment of Gastr.enter.logy Austin HealthVictoriaMelbourne 3083Australia Depar.ment of Gastr.enter.logy Eastern HealthVictoriaMelbourne 3128Australia Depar.ment of Medicine University of MelbourneVictoriaMelbourne 3052Australia

A tr.at-to-tar.et(T2T)appr.ach applies the pr.nciples of ear.y inter.ention and tight disease contr.l to optimise long-ter. outcomes in Cr.hn's *** Selecting Ther.peutic Tar.ets in Inflammator. Bowel Disease(STr.DE)-II guidelines specify shor.,inter.ediate,and long-ter. tr.atment goals,documenting specific tr.atment tar.ets to be achieved at each of these *** appr.isal of Cr.hn’s disease activity against pr.-defined tr.atment tar.ets at these timepoints r.mains centr.l to deter.ining whether.cur.ent ther.py should be continued or.*** tr.atment tar.ets in Cr.hn’s disease compr.se combination clinical and patient-r.por.ed outcome r.mission,in conjunction with biomar.er.nor.alisation and endoscopic *** the STr.DE-II guidelines endor.e the pur.uit of endoscopic healing,clinicians must consider.that this may not always be appr.pr.ate,acceptable,or.achievable in all *** under.cor.s the need to engage patients at the outset in an effor. to per.onalise car. and individualise tr.atment *** use of non-invasive biomar.er. such as faecal calpr.tectin in conjunction with cr.ss-sectional imaging techniques,par.icular.y intestinal ultr.sound,holds gr.at pr.mise;as do emer.ing tr.atment tar.ets such as tr.nsmur.l *** r.ndomised clinical tr.als,namely,CALM and STAr.UST,have evaluated the efficacy of a T2T appr.ach in achieving endoscopic endpoints in patients with Cr.hn’s *** fr.m these studies r.flect that patient subgr.ups and Cr.hn’s disease char.cter.stics likely to benefit most fr.m a T2T appr.ach,r.main to be ***,outside of clinical tr.als,data per.aining to the r.al-wor.d effectiveness of a T2T appr.ach r.mains scar.,highlighting the need for.pr.gmatic r.al-wor.d *** the obvious pr.mise of a T2T appr.ach,a lack of guidance to suppor. its integr.tion into r.al-wor.d clinical pr.ctice has the potential to limit its *** highlights the need to descr.be st

关键词： Tr.at to tar.et Inflammator. bowel disease Cr.hn’s disease Tr.atment tar.ets Endoscopic r.mission Tr.nsmur.l healing Time to r.sponse Intestinal ultr.sound

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Contr.l system design for.a pr.ssur.-tube-type super.r.tical water.cooled nuclear.r.actor.via a higher.or.er.sliding mode method

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nuclear.Science and Techniques 2024年第1期35卷 145-154页

作者： M.Hajipour.G.r.Ansar.far Depar.ment of nuclear.Engineer.ng Faculty of PhysicsUniversity of IsfahanIsfahan 81746-73441Iran

nuclear.power.plants exhibit non-linear.and time-var.able ***,designing a contr.l system that sets the r.actor.power.and for.es it to follow the desir.d load is complicated.A super.r.tical water.r.actor.SCWr.is a four.h-gener.tion conceptual *** an SCWr.the non-linear.dynamics of the r.actor.r.quir. a contr.ller.capable of contr.l-ling the *** this study,a pr.ssur.-tube-type SCWr.was contr.lled dur.ng r.actor.power.maneuver.ng with a higher.or.er.sliding mode,and the r.actor.outgoing steam temper.tur. and pr.ssur. wer. contr.lled *** an SCWr.the temper.tur.,pr.ssur.,and power.must be maintained at a setpoint(desir.d value)dur.ng power.*** point kinetics equations with thr.e gr.ups of delayed neutr.ns wer. used in the ***-or.er.and classic sliding mode contr.ller. wer. separ.tely manufactur.d to contr.l the plant and wer. compar.d with the PI contr.ller. speci-fied in pr.vious *** contr.lled par.meter. wer. r.actor.power.steam temper.tur.,and ***,for.these par.meter.,the PI contr.ller.had cer.ain instabilities in the pr.sence of *** classic sliding mode contr.ller.had a higher.accur.cy and stability;however.its main dr.wback was the chatter.ng *** was highly accur.te and stable and had a small computational *** r.ality,it followed the desir.d values without oscillations and chatter.ng.

关键词： Super.r.tical water.nuclear.r.actor Higher.or.er.sliding mode contr.ller Steam temper.tur. Steam pr.ssur. Point kinetics model

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