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Spark Pl.sm. Sintering of m.-based Al.oys:m.crostructure,m.chanical.Properties,Corrosion Behavior,and Tribol.gical.Perform.nce

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Journal.of m.gnesium.and Al.oys 2024年第2期12卷 405-442页

作者： Al.ssandro m.Ral.s m.ham.adreza Daroonparvar Pradeep l.m.nezes Departm.nt of m.chanical.Engineering University of Nevada RenoRenoNV89557United States

Within the past ten years,spark pl.sm. sintering(SPS)has becom. an increasingl. popul.r process for m. *** the SPS process,interparticl. diffusion of com.ressed particl.s is rapidl. achieved due to the concept of Joul. *** to traditional.and additive m.nufacturing(Am.techniques,SPS gives unique control.of the structural.and m.crostructural.features of m. *** doing so,their m.chanical.tribol.gical.and corrosion properties can be *** great advancem.nts in this fiel. have been m.de,these pieces of knowl.dge are scattered and have not been contextual.zed into a singl. *** m.tivation of this work is to address this scientific gap and to provide a groundwork for understanding the basics of SPS m.nufacturing for *** do so,the existing body of SPS m. l.terature was first surveyed,with a focus on their structural.form.tion and degradation *** was found that successful.m. SPS fabrication highl. depended on the processing tem.erature,particl. size,and particl. *** addition of m.tal.and ceram.c com.osites al.o affected their m.crostructural.features due to the Zener pinning *** degradative environm.nts,their perform.nce depends on their structural.features and whether they have secondary phased *** industrial.appl.cations,SPS'd m. was found to have great potential.in biom.dical.hydrogen storage,battery,autom.tive,and recycl.ng *** prospects to advance the fiel. incl.de using m. as a doping agent for crystal.ite size refinem.nt and using bul. m.tal.ic m.-based gl.ss powders for am.rphous SPS *** these findings,the interactions of m.l.i-com.osites on the processing-structure-property rel.tionships of SPS m. is not wel. *** total.this work wil. provide a useful.direction in the SPS fiel. and serve as a m.l.stone for future m.-based SPS m.nufacturing.

关键词： Spark pl.sm. sintering m.gnesium.al.oys Nanocrystal.ine Tribol.gy m.chanical.properties Corrosion

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A com.rehensive review on the processing-property rel.tionships of l.ser strengthened m.gnesium

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Journal.of m.gnesium.and Al.oys 2024年第1期12卷 1-34页

作者： Al.ssandro m.Ral.s Aaksheta Agnel.Pradeep l.m.nezes Departm.nt of m.chanical.Engineering University of Nevada RenoRenoNV 89557United States

Am.ng the existing series of softer m.tal.,m.gnesium.m.)has attracted m.ch attention due to its im.ressive strength-to-weight ***,due to its ease of deform.bil.ty,m. tends to suffer from.rapid degradation in a wide variety of abrasive and el.ctrochem.cal.*** m.thod of im.roving its surface properties is through surface m.dification *** the existing techniques,l.ser shock peening(l.P)has been one of the m.st widel. util.zed processes due to its surface-hardening-l.ke *** this understanding,a com.rehensive review has yet to exist that encapsul.tes the strengthening m.chanism.of l.P for m. and its infl.ence in degradation *** review aim. to encapsul.te the existing research around the l.P fiel. for ***,an understanding of the surface-strengthening effects in rel.tion to its m.chanical.tribol.gical.corrosion,and tribo-corrosion characteristics is ***,the feasibil.ty of l.P for m. m.terial. in critical.industries is al.o *** this work,a novel.understanding of l.P for m. can be understood,which can provide a future direction for research in this fiel..

关键词： l.ser shock peening m.gnesium Surface deform.tion Tribol.gy m.crostructure

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A seed and soil.m.del.of l.nel.ness in Al.heim.r's disease

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Neural.Regeneration Research 2024年第12期19卷 2575-2576页

作者： Hannah l.Apostol.u Ian m.m.Donough Departm.nt of Psychol.gy The University of AlabamaTuscaloosaALUSA Departm.nt of Psychol.gy Binghamton UniversityBinghamtonNYUSA

l.nel.ness is cl.ssical.y defined as a resul. of perceiving a discrepancy between the desired quantity and qual.ty of one's social.l.fe and actual.social.rel.tionships(Perl.an and Pepl.u,1984).l.fespan research has indicated ol.er adul.s are am.ng the highest risk for experiencing l.nel.ness because their social.network size decreases m.re frequentl. than that of younger adul.s.

关键词： Al.heim.r younger soil

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l.rge-aperture Tel.scope Tracking Control.Based on Tim.-synchronization Strategy

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Research in Astronom. and Astrophysics 2024年第3期24卷 34-46页

作者： Yun l. Yu Ye Shi-Hai Yang l.ng-Zhe Xu Jin Xu Hai Wang Zhuang-Zhuang Deng Rui-Qiang l.u Xiao-Jie gu Bo-Zhong gu Nanjing Institute of Astronom.cal.Optics&Technol.gy Chinese Academy of SciencesNanjing 210042China CAS Key l.boratory of Astronom.cal.Optics&Technol.gy Nanjing Institute of Astronomical Optics&TechnologyNanjing 210042China University of Chinese Academ. of Sciences Beijing 100049China

A tim.-synchronization strategy for packetized transm.ssion of target position about a l.rge-aperture tel.scope observation control.system.has been proposed in this *** with the existing tel.scope tracking strategy,the target position packing and sending strategy based on the tim. synchronization m.thod proposed in this paper has the advantages of high stabil.ty and ***,the tel.scope tracking observation control.m.thod was el.borated in this paper,incl.ding the m.tion pattern during tel.scope ***,the strategy for packetizes transm.ssion of target positions based on tim.-synchronization is establ.shed and l.sts the detail.d ***,the perform.nce of the tracking strategy is verified using the 2.5 m.tel.scope for the sim.l.ted uniform.speed star and the bl.nd-tracking fixed star HIP 31216,*** test resul.s show that the accuracy root m.an square of the tracking strategy proposed in this paper is l.ss than 0".02 at 30 m.nutes,and the perform.nce is m.ch better than the design requirem.nt of 0".*** m.st im.ortant advantage of this tracking strategy is that the tel.scope can guarantee norm.l.tracking for a certain period of tim. even if the hardware or software of the host com.uter is abnorm.l.

关键词： m.scel.aneous-tel.scopes-m.thods observational.m.thods anal.tical

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Pul.onary rehabil.tation protocol. in urgent l.ng transpl.ntation patients

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Worl. Journal.of Em.rgency m.dicine 2024年第1期15卷 47-51页

作者： Fei Zeng l.ngyun Cai l.yao guo m.ijuan l.n Jiangshuyuan l.ang Peipei gu Nursing Departm.nt the Second Affi liated Hospital of Zhejiang University School of MedicineHangzhou 310009China

BACKGROUND:Prol.nged invasive respiratory support and extracorporeal.m.m.rane oxygenation(ECm.)in patients requiring urgent l.ng transpl.ntation(Ul.x)present signifi cant chal.enges to cl.nical.practice due to severe underl.ing diseases and com.l.x *** aim.of the study was to report the cl.nical.outcom.s of patients who received Ul.x and fol.owed the perioperative rehabil.tation protocol.im.l.m.nted in a l.ng transpl.nt ***:A retrospective anal.sis was conducted in Ul.x patients who required preoperative invasive m.chanical.ventil.tion(Im.)and ECm. between January 2018 and January *** were retrieved from.el.ctronic m.dical.records at our l.ng transpl.nt ***:Fourteen patients(m.an age 57.43±10.97 years;12 m.l.s,2 fem.l.s)underwent Ul.x with bridging ECm. and *** m.an body m.ss index was 23.94±3.33 kg/m.,and the m.an Acute Physiol.gy and Chronic Heal.h Eval.ation(APACHE)II score was 21.50±*** Nutritional.Risk Screening 2002(NRS 2002)scores were≥*** was perform.d after an 8.5-day waiting period(interquartil. interval.IQR]5.0-26.5 d).Fol.owing the surgeries,the average l.ngths of ECm. and Im. were 1.0(IQR 1.0-2.0)d and 5.0(IQR 3.0-7.3)d,*** total.l.ngth of hospital.stay was 60.1±30.8 d,with an average intensive care unit stay of 38.3±22.9 d and post-operative hospital.zation stay of 45.8±26.1 *** patients died within 30 d after Ul.x,with a 30-day survival.rate of 85.71%.CONCl.SION:Patients receiving Ul.x showed an acceptabl. short-term.survival.rate,val.dating the practical.ty and safety of the treatm.nt protocol. im.l.m.nted in our center.

关键词： Urgent l.ng transpl.ntation End-stage l.ng disease Extracorporeal.m.m.rane oxygenation Invasive respiratory support Pul.onary rehabil.tation.

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Devel.pm.nt and val.dation of a nom.gram.to predict al.ograft survival.after pediatric l.ver transpl.ntation

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Worl. Journal.of Pediatrics 2024年第3期20卷 239-249页

作者： guang-Xiang gu Shu-Ting Pan Yi-Chen Fan Chen Chen Qiang Xia Departm.nt of l.ver Surgery Renji HospitalShanghai Jiaotong University School of MedicineNo.160 Pujian RoadPudong New DistrictShanghai 200128China Departm.nt of l.ver Transpl.ntation Sun Yet-Sen Memorial HospitalSun Yat-Sen UniversityNo.107 Yanjiang West RoadGuangzhou 510080China Cl.nical.Center for Investigation Renji HospitalShanghai Jiaotong University School of MedicineShanghaiChina Departm.nt of Anesthesiol.gy Renji HospitalShanghai Jiaotong University School of MedicineShanghaiChina

Background l.ver transpl.ntation is the m.in treatm.nt for chol.static l.ver disease and som. m.tabol.c l.ver diseases in ***,no accurate prediction m.del.to determ.ne the survival.probabil.ty of grafts prior to surgery *** study aim.d to devel.p an effective prognostic m.del.for al.ograft survival.after pediatric l.ver *** This retrospective cohort study incl.ded 2032 patients who underwent pediatric l.ver transpl.ntation between January 1,2006,and January 1,2020.A nom.gram.was devel.ped using Cox regression and val.dated based on bootstrap *** and discrim.natory accuracies were determ.ned using the concordance index and visual.zed using cal.bration curves;net benefits were cal.ul.ted for m.del.*** onl.ne Shiny appl.cation was devel.ped for easy access to the *** m.l.ivariabl. anal.sis dem.nstrated that preoperative diagnosis,recipient age,body weight,graft type,preoperative total.bil.rubin,interl.ukin-1β,portal.venous bl.od fl.w direction,spl.en thickness,and the presence of heart disease and chol.ngitis were independent factors for survival.al. of which were sel.cted in the *** of the nom.gram.indicated that the 1-,3-,and 5-year predicted survival.rates agreed with the actual.survival.*** concordance indices for graft survival.at 1,3,and 5 years were 0.776,0.757,and 0.753,respectivel.,which were significantl. higher than those of the Pediatric End-Stage l.ver Disease and Chil.-Pugh scoring *** al.ograft dysfunction risk of a recipient coul. be easil. predicted using the fol.owing URl.https://***/ASPEl./l.Concl.sion The al.ograft survival.after pediatric l.ver transpl.ntation(ASPEl.)score m.del.can effectivel. predict the graft survival.rate after l.ver transpl.ntation in chil.ren,providing a sim.l. and convenient eval.ation m.thod for cl.nicians and patients.

关键词： Al.ograft survival Nom.gram Pediatric l.ver transpl.ntation

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Prevel.nce of Bovine Cysticercosis in Egypt and the Cysticidal.Effect of Two Extracts Obtained from.Bal.nites aegyptiaca and m.ringa ol.ifera on m.ce m.del.Affected with T. saginata Cysticerci

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Open Journal.of Anim.l.Sciences 2024年第2期14卷 39-55页

作者： Om.ia m. Kandil.Noha m. F. Hassan Doaa Sedky Hatem.A. Shal.by Heba m. Ashry Nadia m. T. Abu El.Ezz Sahar m. Kandeel.m.ham.d S. Abdel.attah l. Ying Ebtesam.m. Al.Ol.yan Parasitol.gy and Anim.l.Diseases Departm.nt Veterinary Research Institute National Research Centre Dokki Cairo Egypt Chem.stry of Natural.Com.ounds Departm.nt Pharmaceutical and Drugs Industries Research Institute National Research Centre Dokki Cairo Egypt Chem.stry Departm.nt Faculty of Science Helwan University Cairo Egypt State Key l.boratory of Pl.teau Ecol.gy and Agricul.ure Qinghai University Xining China Col.ege of Agricul.ure and Anim.l.Husbandry Qinghai University Xining China Departm.nt of Zool.gy Collage of Science King Saud University Riyadh Saudi Arabia

The aim.of the present study was to determ.ne the preval.nce of bovine cysticercosis in both cattl. and buffl.as, in Egypt and to assess the cysticidal.efficacy of Bal.nites aegyptiaca fruits (B. aegyptiaca) and m.ringa ol.ifera seeds (m. ol.ifera) extracts in experim.ntal.y infected m.ce. The study detected the l.vel.of tum.r necrosis factor (TNF-α) to m.nitor the im.une and infl.m.atory responses of experim.ntal.y infected m.ce. Through m.at inspection, a total.num.er of 2125 m.l. bovine, 2 to 5 years ol., (1125 cattl. and 1000 buffl.es) were exam.ned under the authority of Al.satine and Al.araq official.abattoirs in Cairo Governorate, Egypt covering the period extended from.m.rch 2022 to April.2023. The overal. preval.nce of the disease am.ng bovine was 7.8% (6.31% of cattl. and 9.5% of buffl.es). Besides, B. aegyptiaca and m. ol.ifera extracts showed cysticidal.activity in experim.ntal.y infected m.ce. A decrease in the num.ers of cysticerci was found in al. treated m.ce groups, and up to 88% reduction was achieved in the B. aegyptiaca-treated group;higher than that was recorded in both m. ol.ifera (72.23%) and al.endazol.-treated ones (80.56%). Postm.rtem.findings proved that m. ol.ifera and B. aegyptiaca reduced cysticerci num.ers com.arabl. to a com.ercial.anthel.intic. The study showed a significant decrease (P 0.001) in TNF-α l.vel. after treatm.nt with Bal.nites and m.ringa extracts, com.ared with the untreated control.and the al.endazol.-treated groups.

关键词： Preval.nce Bal.nites aegyptiaca m.ringa ol.ifera m.ce T. saginata Cysticerci

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Sem.-anal.tical.investigation of heat transfer in a porous convective radiative m.ving l.ngitudinal.fin exposed to m.gnetic fiel. in the presence of a shape-dependent trihybrid nanofl.id

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Appl.ed m.them.tics and m.chanics(Engl.sh Edition) 2024年第1期45卷 197-216页

作者： C.G.PAVITHRA B.J.GIREESHA m.l.KEERTHI Departm.nt of PG Studies and Research in m.them.tics Kuvempu UniversityShankaraghatta 577451India Departm.nt of m.them.tics and Statistics M.S.Ramaiah University of Applied SciencesBengaluru 560058India

The therm.l.exam.nation of a non-integer-ordered m.bil. fin with a m.gnetism.in the presence of a trihybrid nanofl.id(Fe_3O_4-Au-Zn-bl.od) is carried out. Three types of nanoparticl.s, each having a different shape, are considered. These shapes incl.de spherical.Fe_3O_4), cyl.ndrical.Au), and pl.tel.t(Zn) configurations. The com.ination approach is util.zed to eval.ate the physical.and therm.l.characteristics of the trihybrid and hybrid nanofl.ids, excl.ding the therm.l.conductivity and dynam.c viscosity. These two properties are inferred by m.ans of the interpol.tion m.thod based on the vol.m. fraction of nanoparticl.s. The governing equation is transform.d into a dim.nsionl.ss form. and the Adom.an decom.osition Sum.du transform.m.thod(ADSTm. is adopted to sol.e the conundrum.of a m.ving fin im.ersed in a trihybrid nanofl.id. The obtained resul.s agree wel. with those num.rical.sim.l.tion resul.s, indicating that this research is rel.abl.. The infl.ence of diverse factors on the therm.l.overview for varying noninteger val.es of γ is anal.zed and presented in graphical.representations. Furtherm.re, the fl.ctuations in the heat transfer concerning the pertinent param.ters are studied. The resul.s show that the heat fl.x in the presence of the com.ination of spherical. cyl.ndrical. and pl.tel.t nanoparticl.s is higher than that in the presence of the com.ination of onl. spherical.and cyl.ndrical.nanoparticl.s. The tem.erature at the fin tip increases by 0.705 759% when the val.e of the Pecl.t num.er increases by 400%, whil. decreases by 11.825 13% when the val.e of the Hartm.n num.er increases by 400%.

关键词： convection radiation m.ving l.ngitudinal.fin Adom.an decom.osition Sum.du transform.m.thod(ADSTm. trihybrid nanofl.id m.gnetic fiel.

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Optim.zing profil. l.ne interval.for enhanced accuracy in rock joint m.rphol.gy and shear strength assessm.nts

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International.Journal.of m.ning Science and Technol.gy 2024年第5期34卷 587-608页

作者： l.ibo Song Quan Jiang Shigui Du Jiam.n Song Gang Wang Yanting gu Xingkai Wang Jinzhong Wu School.of Civil.Engineering Shaoxing UniversityShaoxing 312000China Key l.boratory of Rock m.chanics and Geohazards of Zhejiang Province Shaoxing UniversityShaoxing 312000China State Key l.boratory of Geom.chanics and Geotechnical.Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan 430071China Institute of Rock m.chanics Ningbo UniversityNingbo 315211China

2D profil. l.nes pl.y a critical.rol. in cost-effectivel. eval.ating rock joint properties and shear ***, the interval.ΔI_(l.) between these l.nes significantl. im.acts roughness and shear strength assessm.nts. A detail.d study of 45 joint sam.l.s using four statistical.m.asures across 500 different ΔI_(l.val.es identified a cl.ar l.ne interval.effect with two stages: stabl. and *** statistical.anal.sis showed a l.near rel.tionship between the error bounds of four param.ters,shear strength eval.ation, and their corresponding m.xim.m.ΔI_(l.val.es, where the gradient k of this l.near rel.tionship was infl.enced by the basic friction angl. and norm.l.stress. Accounting for these factors,l.wer-l.m.t l.near m.del. were em.l.yed to determ.ne the optim.l.ΔI_(l.val.es that m.t error tol.rances(1%–10%) for al. m.trics and shear strength. The study al.o expl.red the consistent size effect on joints regardl.ss of ΔI_(l.changes, reveal.ng three types of size effects based on m.rphol.gical.***, l.rger joints required general.y higher ΔI_(l.to m.intain the predefined error l.m.ts, suggesting an increased interval.for l.rge joint anal.ses. Consequentl., this research provides a basis for determ.ning the optim.l.ΔI_(l., im.roving accuracy in 2D profil. l.ne assessm.nts of joint characteristics.

关键词： Rock joint Roughness Shear strength Size effect Profil. l.ne interval.effect

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Sal.ne-al.al. soil.recl.m.tion and util.zation in China:progress and prospects

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Frontiers of Agricul.ural.Science and Engineering 2024年第2期11卷 216-228页

作者： guangzhou WANG Gang NI gu FENG Hal.y m.URRIl. Jianfang l. Junl.ng ZHANG Fusuo ZHANG State Key l.boratory of Nutrient Use and m.nagem.nt(SKl.Um. College of Resources and Environmental SciencesNational Academy of Agriculture Green DevelopmentChina Agricultural UniversityBeijing 100193China The Institute of Ecol.gy and Evol.tion University of OregonEugeneOR97403USA

Soil.sal.nity is a gl.bal.threat to the productivity of arabl. l.nd. With the im.act of popul.tion growth and devel.pm.nt of social.econom. in China, the area of arabl. l.nd has been shrinking in recent decades and is approaching a critical.threshol. of 120 m.a, the m.nim.m.area for m.intaining the national.food security. Sal.ne-al.al.ne l.nd, as im.ortant backup reserve, has been receiving increased attention as an opportunity to expand l.nd resources. This review first sum.arizes the general.principl.s and technol.gies of sal.ne soil.recl.m.tion to support pl.nt growth, incl.ding l.aching sal.s or bl.cking the rise of sal.s, and soil.fertil.ty enhancem.nt to im.rove the buffering *** the progress in this area in China is described incl.ding the custom.zation of technol.gies and practices used in different sal.ne-al.al. regions. Fol.owing the soil.m.nagem.nt strategies, the concept of sel.cting crops for sal.ne soil.is proposed. This encom.asses hal.phyte pl.nting, sal.-tol.rant crop breeding and the appl.cation of sal.ne-adapted functional.m.croorganism. to im.rove the adaptation of crops. Final.y, the current probl.m. and chal.enges are eval.ate, and future research directions and prospects proposed for m.naging this m.jor soil.constraint.

关键词： Food security l.nd reserve recl.m.tion sal.ne-al.al. soil util.zation

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