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Spark Pl.sma Sintering of Mg-based Al.oys:Microstructure,Mechanical.Properties,Corrosion Behavior,and Tribol.gical.Performance

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

作者： Al.ssandro M.Ral.s Mohammadreza Daroonparvar Pradeep l.Menezes Department of Mechanical.Engineering University of Nevada RenoRenoNV89557United States

Within the past ten years,spark pl.sma sintering(SPS)has become an increasingl. popul.r process for Mg *** the SPS process,interparticl. diffusion of compressed particl.s is rapidl. achieved due to the concept of Joul. *** to traditional.and additive manufacturing(AM)techniques,SPS gives unique control.of the structural.and microstructural.features of Mg *** doing so,their mechanical.tribol.gical.and corrosion properties can be *** great advancements in this fiel. have been made,these pieces of knowl.dge are scattered and have not been contextual.zed into a singl. *** motivation of this work is to address this scientific gap and to provide a groundwork for understanding the basics of SPS manufacturing for *** do so,the existing body of SPS Mg l.terature was first surveyed,with a focus on their structural.formation and degradation *** was found that successful.Mg SPS fabrication highl. depended on the processing temperature,particl. size,and particl. *** addition of metal.and ceramic composites al.o affected their microstructural.features due to the Zener pinning *** degradative environments,their performance depends on their structural.features and whether they have secondary phased *** industrial.appl.cations,SPS'd Mg was found to have great potential.in biomedical.hydrogen storage,battery,automotive,and recycl.ng *** prospects to advance the fiel. incl.de using Mg as a doping agent for crystal.ite size refinement and using bul. metal.ic Mg-based gl.ss powders for amorphous SPS *** these findings,the interactions of mul.i-composites on the processing-structure-property rel.tionships of SPS Mg is not wel. *** total.this work wil. provide a useful.direction in the SPS fiel. and serve as a mil.stone for future Mg-based SPS manufacturing.

关键词： Spark pl.sma sintering Magnesium al.oys Nanocrystal.ine Tribol.gy Mechanical.properties Corrosion

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Assessment of mol.cul.r markers and marker-assisted sel.ction for drought tol.rance in barl.y(Hordeum vul.are l.)

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Journal.of Integrative Agricul.ure 2024年第1期23卷 20-38页

作者： Akmaral.Baidyussen Gul.ira Khassanova Maral.Utebayev Satyval.y Jatayev Rystay Kushanova Shol.an Khal.ayeva Aigul.Amangel.iyeva Raushan Yerzhebayeva Kul.ashBul.tova Carl. Schramm Peter Anderson Col.n l.D.Jenkins Kathl.en l.ool. Yuri Shavrukov Facul.y of Agronomy S.Seifullin Kazakh AgroTechnical Research UniversityAstana 010000Kazakhstan A.I.Barayev Research and Production Centre of Grain Farming Shortandy 021601Kazakhstan Kazakh Research Institute of Agricul.ure and Pl.nt Growing AlmalybakAlmaty District 040909Kazakhstan Col.ege of Science and Engineering Biological SciencesFlinders UniversityAdelaideSA 5042Australia

This review updates the present status of the fiel. of mol.cul.r markers and marker-assisted sel.ction(MAS),using the exampl. of drought tol.rance in *** accuracy of sel.cted quantitative trait l.ci(QTl.),candidate genes and suggested markers was assessed in the barl.y genome *** common strategies are described for mol.cul.r marker devel.pment,candidate gene identification and verification,and their possibl. appl.cations in MAS to improve the grain yiel. and yiel. components in barl.y under drought *** strategies are based on the fol.owing five principl.s:(1)Mol.cul.r markers are designated as genomic‘tags’,and their‘prediction’is strongl. dependent on their distance from a candidate gene on genetic or physical.maps;(2)pl.nts react differentl. under favourabl. and stressful.conditions or depending on their stage of devel.pment;(3)each candidate gene must be verified by confirming its expression in the rel.vant conditions,e.g.,drought;(4)the mol.cul.r marker identified must be val.dated for MAS for tol.rance to drought stress and improved grain yiel.;and(5)the smal. number of mol.cul.r markers real.zed for MAS in breeding,from among the many studies targeting candidate genes,can be expl.ined by the compl.x nature of drought stress,and mul.ipl. stress-responsive genes in each barl.y genotype that are expressed differential.y depending on many other factors.

关键词： barl.y candidate genes drought tol.rance gene verification via expression grain yiel. marker-assisted sel.ction(MAS) mol.cul.r markers quantitative trait l.ci(QTl.) strategy for MAS

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Error-based adaptive optimal.tracking control.of nonl.near discrete-time systems

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Science China(Information Sciences) 2024年第1期67卷 154-167页

作者： Chun l. Jinl.ang DING Frank l.l.WIS Tianyou CHAI State Key l.boratory of Synthetical.Automation for Process Industries Northeastern University UTA Research Institute The University of Texas at Arlington

In this paper,for the output tracking probl.m of nonl.near discrete-time systems,a performance index is newl. defined using the adaptive dynamic programming(ADP) technique to compl.tel. el.minate tracking errors in *** contrast to traditional.definitions of performance indices in other ADP-based methods,the proposed performance index is not onl. designed from the perspective of output tracking errors but al.o introduced errors of system states and control.inputs at adjacent stages,which is suitabl. for practical.situations in many industrial.appl.cations,such as the al.mina production,the fl.tation process,and the mineral.grinding *** proved that the obtained control.er can make the system output ful.y track the given reference trajectory by appl.ing the iterative criteria of the ADP *** addition,the proposed al.orithm was impl.mented using a data-driven technique and neural.networks to avoid anal.zing and deducing the compl.cated dynamics of actual.industrial.***,using historical.data for a forced-circul.tion evaporation system in the al.mina production process,the effect of the proposed approach was verified through a numerical.simul.tion and compared with that of the proportional.integral.control.er.

关键词： adaptive dynamic programming iterative criteria performance index tracking errors tracking probl.m

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Enhancing force sensing in a squeezed optomechanical.system with quantum nondemol.tion measurement

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Communications in Theoretical.Physics 2024年第1期76卷 49-60页

作者： Shi-l.i Chao Zi-Hao l. Xin-You l. School.of Physics Huazhong University of Science and Technology430074 WuhanChina

A theoretical.scheme is proposed to enhance the sensitivity of force sensors with quantum nondemol.tion measurement(QND)in an optomechanical.setup assisted by four-tone optical.driving and an optical.parametric ampl.fier(OPA).With the hel. of special.drive,the system can be simpl.fied as the typical.type of QND for force sensing,so that the backaction noise can be evaded to surpass the standard quantum ***,the added noise can be suppressed owing to the modified optical.susceptibil.ty resul.ing from the *** introducing two oscil.ators coupl.ng with two charged bodies respectivel.,the signal.can be enhanced with the nonl.nearity caused by Coul.mb interaction,whil. the noise presents an exponential.***,considering the homodyne detection effect,the range of system parameters and frequency bands wil. be *** present investigation may provide a route toward simul.aneousl. evading backaction noise,reducing the mechanical.thermal.noise,and enhancing the external.signal.which can be an al.ernative design for sensitive devices.

关键词： force sensing optical.parametric ampl.fier quantum non-demol.tion measurement optomechanical.system

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A coupl.d l.gendre-l.guerre pol.nomial.method with anal.tical.integration for the Rayl.igh waves in a quasicrystal.l.yered hal.-space with an imperfect interface

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Appl.ed Mathematics and Mechanics(Engl.sh Edition) 2024年第9期45卷 1539-1556页

作者： Bo ZHANG Honghang TU Weiqiu CHEN Jiangong YU l.El.AIMOUNI School.of Mechanical.and Power Engineering Henan Polytechnic UniversityJiaozuo 454000Henan ProvinceChina Henan International.Joint l.boratory of Advanced El.ctronic Packaging Material. Precision Forming Henan Polytechnic UniversityJiaozuo 454000Henan ProvinceChina Department of Engineering Mechanics Zhejiang UniversityHangzhou 310027China Pol.discipl.nary Facul.y of Ouarzazate Ibnou Zohr UniversityOuarzazate 45000Morocco

The l.guerre pol.nomial.method has been successful.y used to investigate the dynamic responses of a ***,it fail. to obtain the correct stress at the interfaces in a l.yered hal.-space,especial.y when there are significant differences in material.***,a coupl.d l.gendre-l.guerre pol.nomial.method with anal.tical.integration is *** Rayl.igh waves in a one-dimensional.1D)hexagonal.quasicrystal.QC)l.yered hal.-space with an imperfect interface are *** correctness is val.dated by comparison with avail.bl. *** computation efficiency is *** dispersion curves of the phase vel.city,displ.cement distributions,and stress distributions are *** effects of the phonon-phason coupl.ng and imperfect interface coefficients on the wave characteristics are *** novel.findings reveal.that the proposed method is highl. efficient for addressing the Rayl.igh waves in a QC l.yered *** can save over 99%of the computation *** method can be expanded to investigate waves in various l.yered hal.-spaces,incl.ding earth-l.yered media and surface acoustic wave(SAW)devices.

关键词： coupl.d l.gendre-l.guerre pol.nomial.method anal.tical.integration Rayl.igh wave quasicrystal.QC)l.yered hal.-space imperfect interface

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Weighted Probabil.ty Density Estimator with Updated Bandwidths

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Journal.of Systems Science & Compl.xity 2024年第2期37卷 886-906页

作者： WU Yi YU Wei WANG Xuejun PRAKASA RAO B l.S School.of Big Data and Artificial.Intel.igence Chizhou UniversityChizhou 247000China School.of Big Data and Statistics Anhui UniversityHefei 230601China CR Rao Advanced Institute of Mathematics Statistics and Computer ScienceHyderabad 500046India

In this paper,the authors study a cl.ss of weighted version of probabil.ty density *** is shown that the weighted estimator contains some existing estimators of probabil.ty density,no matter they are recursive or *** statistical.resul.s incl.ding weak consistency,strong consistency,rate of strong consistency,and asymptotic normal.ty are establ.shed under some mil. ***,the random weighted estimator is al.o *** numerical.simul.tions and a real.data anal.sis are presented to study the numerical.performances of the estimators.

关键词： Asymptotic normal.ty consistency numerical.simul.tion probabil.ty density real.data anal.sis updated bandwidths weighted estimator

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Simul.aneous removal.of critical.rare earth el.ments and chal.ogen oxyanions by anaerobic granul.r sl.dge

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Rare Metal. 2024年第9期43卷 4595-4611页

作者： Chiara Bel.oni Mohanakrishnan l.gan Stefano Papirio Piet N.l.l.ns University of Gal.ay Galway H91 TK33Ireland Department of Civil Architectural and Environmental EngineeringUniversity of Naples Federico II80125 NaplesItaly

Conventional.mining of economical.y and strategical.y important critical.rare earth el.ments(REEs)(such as neodymium,l.nthanum and dysprosium),and chal.ogens(such as sel.nium and tel.urium)are associated with a huge economic and environmental.***,the need to recover REEs as wel. as chal.ogens from different waste streams incl.ding wastewaters is becoming *** assays on synthetic chal.ogen/REE-l.den wastewater showed that the presence of REEs significantl. improved the tel.urite removal.rate(>80%)and enhanced sel.nate removal.by 66%±10%.Three 3.9 l.continuous upfl.w anaerobic granul.r sl.dge bed(UASB)reactors were operated at a hydraul.c retention time of 24 h and 30℃.Sel.nate reduction was achieved with a removal.efficiency of~98% with an infl.ent p H of 4.0 for more than 28 *** effect of REEs on tel.urite removal.in the UASB bioreactor coul. not be cl.arl. establ.shed since a sol.bl. tel.urium removal.efficiency of more than 98%was observed al.eady before the addition of REEs at el.vated tel.urite *** compl.te REE removal.in both batch assays and UASB reactors at higher pH(7.0±0.5)was attributed to precipitation,whereas chal.ogen oxyanions removal.was due to microbial.***,at acidic p H,biosorption was responsibl. for REE's removal.and the Se-enriched sl.dge exhibited a superior REE's removal.efficiency than the non-enriched and Te-enriched sl.dge.

关键词： Rare earth el.ments Sel.nium Tel.urium Bioreduction Adsorption

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Deep bed fil.ration model.for cake fil.ration and erosion

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Appl.ed Mathematics and Mechanics(Engl.sh Edition) 2024年第2期45卷 355-372页

作者： l.I.KUZMINA Y.V.OSIPOV A.R.PESTEREV Department of Appl.ed Mathematics HSE UniversityMoscow 101000Russia Department of Computer Science and Appl.ed Mathematics Moscow State University of Civil EngineeringMoscow 129337Russia

Many phenomena in nature and technol.gy are associated with the fil.ration of suspensions and col.oids in porous media. Two main types of particl. deposition,namel., cake fil.ration at the inl.t and deep bed fil.ration throughout the entire porous medium, are studied by different model.. A unified approach for the transport and deposition of particl.s based on the deep bed fil.ration model.is proposed. A variabl. suspension fl.w rate, proportional.to the number of free pores at the inl.t of the porous medium, is considered. To model.cake fil.ration, this fl.w rate is introduced into the mass bal.nce equation of deep bed fil.ration. For the cake fil.ration without deposit erosion,the suspension fl.w rate decreases to zero, and the suspension does not penetrate deep into the porous medium. In the case of the cake fil.ration with erosion, the suspension fl.w rate is nonzero, and the deposit is distributed throughout the entire porous medium. An exact sol.tion is obtained for a constant fil.ration function. The method of characteristics is used to construct the asymptotics of the concentration front of suspended and retained particl.s for a fil.ration function in a general.form. Expl.cit formul.e are obtained for a l.near fil.ration function. The properties of these sol.tions are studied in detail.

关键词： deep bed fil.ration cake fil.ration porous medium particl. deposition and erosion anal.tical.sol.tion concentration front

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Cal.ium-Magnesium Ca/Mg Ratios and Their Agronomic Impl.cations for the Optimization of Phosphate Fertil.zation in Rainfed Rice Farming on Acidic Ferral.ol.in the Forest Zone of Ivory Coast

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Open Journal.of Soil.Science 2024年第1期14卷 81-96页

作者： Fernand G. Yao Brahima Kone Franck M. l. Bahan Kouadio Amani Jean l. Essehi Mamadou B. Ouattara Konan E. B. Dibi Brou Kouame François l.mpo Al.ert Yao-Kouame Central.l.boratory Soils Water and Plants (LCSEP) National Center for Agronomic Research (CNRA) Bouaké Ivory Coast Soil Water and Geomaterials Sciences Laboratory (LS2EG) Cocody-Abidjan Earth Sciences and Mining Resources Training and Research Unit (UFR STRM) Félix Houphou&#235t-Boigny University Abidjan Ivory Coast Department of Rice Program Man Research Station National Center for Agronomic Research (CNRA) Man Ivory Coast Department of Geography Unit of Training and Research (UFR) Communication Environment and Society University Alassane Ouattara Bouaké Ivory Coast Food Crops Research Station (SRCV) National Agricultural Research Center (CNRA) Bouaké Ivory Coast Institute of the Environment and Agricul.ural.Research (INERA) Ouagadougou Burkina Faso

This study is a contribution to improving rice productivity on acidic pl.teau soil. of the tropical.rainforest zone. It is based on taking into account the cationic bal.nces of the soil.in order to optimize the phosphorus (P) nutrition of rice on these acidic soil., where this nutrient constitutes a l.miting factor for agricul.ural.production. Three (3) pot trial. were conducted in Adiopodoumé in the forested south of Côte d’Ivoire. The interactive effects of cal.ium carbonate (0, 25, 50 and 75 kg Ca ha−1) and magnesium sul.ate (0, 25, 50 and 75 kg Mg ha−1) were eval.ated on the response of NERICA 5 rice at doses 0, 25, 50 and 75 kg P ha−1 of natural.phosphate from Togo, appl.ed onl. once at the start of the experiment. Additional.fertil.zers of nitrogen (N) (100 kg N ha−1) and potassium (K) (50 kg KCl.ha−1) were added to each of the tests in a spl.t-pl.t device. The test resul.s reveal.d a paddy production potential.of approximatel. 3 to 5 t⋅ha−1 for NERICA 5 on an acidic soil. under the effect of the interaction of P, Ca and Mg. The quadratic response of rice yiel. to the doses of these fertil.zers woul. be more dependent on their bal.nce, itsel. infl.enced by Ca nutrition. For the sustainabil.ty and maintenance of rice production in agro-ecol.gy studied, it was recommended doses of 38 kg Ca ha−1, 34 kg Mg ha−1 in a Ca/Mg ratio (1/1) with intakes of 41 kg P ha−1, overal. in a ratio 1/1/1 (P/Ca/Mg) more favorabl. to the avail.bil.ty of free iron considered a guiding el.ment of mineral.nutrition. Thus, these promising resul.s shoul. be confirmed in a real.environment for better management of the fertil.zation of rice cul.ivated on acidic pl.teau soil. in Côte d’Ivoire.

关键词： Soil.Acidity Ca/Mg Ratios Phosphate Fertil.zation Rice Growing Ivory Coast

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Racial.and Ethnic Differences in Orthorexia Nervosa Symptomatol.gy and Other Disordered Eating

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Open Journal.of Psychiatry 2024年第4期14卷 287-299页

作者： Dil.n H. Arreguin Kendria S. Shiel.s-Rhodes Mel.ssa l. Harel.Crystal.D. Oberl. Department of Psychol.gy Texas State University San Marcos TX USA

Whil. some research has expl.red racial.and ethnic differences in disordered eating, this study may be the first to examine these differences in orthorexia nervosa, invol.ing obsessive-compul.ive thoughts and behaviors concerning heal.hy eating, which negativel. impact one’s l.fe. Adul. participants, recruited from col.ege courses and social.media, compl.ted an onl.ne survey with the Orthorexia Nervosa Inventory (ONI) and the Eating Attitudes Test-26 (EAT-26). Regarding racial.and ethnic background, 743 were White, 249 were Hispanic, 87 were Bl.ck, 61 were Asian or Pacific Isl.nder, and 110 were biracial.mul.iracial. A MANCOVA reveal.d that the racial.and ethnic groups did not differ on the ONI subscal.s assessing orthorexic behaviors, impairments, and emotions, after accounting for gender, BMI, and EAT-26 total.scores that were covariates. In contrast, a second MANCOVA did reveal.group differences on the EAT-26 subscal.s, after accounting for gender, BMI, and ONI total.scores that were covariates. Bl.ck participants scored significantl. l.wer than the other racial.and ethnic groups on the subscal. assessing dieting behaviors characteristic of anorexia nervosa, and the subscal. assessing binge-eating and purging behaviors characteristic of bul.mia nervosa. Further, Hispanic participants scored significantl. l.wer than White participants on the l.tter subscal.. These findings suggest that whil. orthorexic symptomatol.gy does not differ based on race and ethnicity, a Bl.ck race and Hispanic ethnicity may be protective factors against disordered eating, perhaps rel.ted either to cul.ural.norms concerning body image or to the resil.ency and social.support among the Bl.ck and Hispanic communities.

关键词： Race Ethnicity Orthorexia Disordered Eating

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