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Prediction and optimization of flue pressure in sintering.process based on SHAP

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International Journal of Minerals,Metallurg.0}and Materials 2025年第2期32卷 346-359页

作者： Ming.0} Wang.Jue Tang.Mansheng.Chu Quan shi Zhen Zhang School of Metallurg. Northeastern UniversityShenyang 110819China Liaoning.Low-Carbon Steelmaking.Technolog.0}Eng.neering.Research Center Northeastern UniversityShenyang 110819China Eng.neering.Research Center of Frontier Technolog.es for Low-Carbon Steelmaking.Ministry.of Education) Shenyang 110819China

Sinter is the core raw material for blast *** pressure,which is an important state parameter,affects sinter *** this paper,flue pressure prediction and optimization were studied based on the shapley.additive explanation(SHAP)to predict the flue pressure and take targ.ted adjustment ***,the sintering.process data were collected and processed.A flue pressure prediction model was then constructed after comparing.different feature selection methods and model alg.rithms using.SHAP+extremely.random-ized trees(ET).The prediction accuracy.of the model within the error rang. of±0.25 kPa was 92.63%.SHAP analy.is was employ.d to improve the interpretability.of the prediction *** effects of various sintering.operation parameters on flue pressure,the relation-ship between the numerical rang. of key.operation parameters and flue pressure,the effect of operation parameter combinations on flue pressure,and the prediction process of the flue pressure prediction model on a sing.e sample were analy.ed.A flue pressure optimization module was also constructed and analy.ed when the prediction satisfied the judg.ent *** operating.parameter combination was then *** flue pressure was increased by.5.87%during.the verification process,achieving.a g.od optimization effect.

关键词： sintering.process flue pressure shapley.additive explanation prediction optimization

The pivotal role of microg.ia in injury.and the prog.osis of subarachnoid hemorrhag.

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Neural Reg.neration Research 2025年第7期20卷 1829-1848页

作者： Wenjing.Ning.shi Lv Qian Wang.y.zhen Xu Department of Rehabilitation The Second Affiliated Hospital of Shandong First Medical UniversityTaianShandong ProvinceChina Department of Central Laboratory The Affiliated Taian City Central Hospital of Qingdao UniversityTaianShandong ProvinceChina

Subarachnoid hemorrhag. leads to a series of patholog.cal chang.s,including.vascular spasm,cellular apoptosis,blood–brain barrier damag.,cerebral edema,and white matter ***,which are the key.immune cells in the central nervous sy.tem,maintain homeostasis in the neural environment,support neurons,mediate apoptosis,participate in immune reg.lation,and have neuroprotective *** evidence has shown that microg.ia play.a pivotal role in the pathog.nesis of subarachnoid hemorrhag. and affect the process of injury.and the prog.osis of subarachnoid ***,microg.ia play.certain neuroprotective roles in the recovery.phase of subarachnoid *** approaches aimed at modulating.microg.ia function are believed to attenuate subarachnoid hemorrhag. *** provides new targ.ts and ideas for the treatment of subarachnoid ***,an in-depth and comprehensive summary.of the role of microg.ia after subarachnoid hemorrhag. is still *** review describes the activation of microg.ia after subarachnoid hemorrhag. and their roles in the patholog.cal processes of vasospasm,neuroinflammation,neuronal apoptosis,blood–brain barrier disruption,cerebral edema,and cerebral white matter *** also discusses the neuroprotective roles of microg.ia during.recovery.from subarachnoid hemorrhag. and therapeutic advances aimed at modulating.microg.ial function after subarachnoid ***,microg.ia in subarachnoid hemorrhag. are targ.ted with TLR inhibitors,nuclear factor-κB and STAT3 pathway.inhibitors,g.y.ine/ty.osine kinases,NLRP3 sig.aling.pathway.inhibitors,g.sdermin D inhibitors,vincristine receptorαreceptor ag.nists,ferroptosis inhibitors,g.netic modification techniques,stem cell therapies,and traditional Chinese ***,most of these are still being.evaluated at the laboratory.*** clinical studies and data on subarachnoid hemorrhag. are required to improve the treatment of subarachnoid hemor

关键词： apoptosis blood–brain barrier brain edema microg.ia neuroinflammation neuron neuroprotection subarachnoid hemorrhag. vasoconstriction white matter injury

Healing.Process of Casting.Pores in a Ni-based Superalloy.by.Hot Isostatic Pressing

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Journal of Materials Science & Technolog. 2015年第11期31卷 1151-1157页

作者： X.g.Zheng.y.-N.shi L.H.Lou Sheny.ng.National Laboratory.for Materials Science Institute of Metal Research Chinese Academy of Sciences Superalloy.Division Institute of Metal Research Chinese Academy of Sciences

Hot isostatic pressing.（HIP） with a pressure of 180 MPa at a temperature of 1170 ℃ was introduced to an investment cast Ni-based superalloy.（Mg.） turbocharg.r blade to explore the healing.process of casting.pores g.nerated during.investment casting. Optical microg.aph and scanning.electron naicroscopy.（SEM） observations indicate that eutectic pores are the main cast defects in the as-cast blade before HIP. These pores normally.locate at the solidification front of γ/γ＇ eutectic with a size of a few micrometers to a few tens of micrometers. After HIP for 4 h, most of the pores were closed. Based on phase characteristics, these pores were healed by.the formation of γ matrix with finer and irreg.lar-shaped γ＇ precipitates. Healing.interface can be easily.disting.ished by.SEM. Line scan by.using.energ.0}dispersive X-ray.spectroscopy.（EDS） reveals a much hig.er Ti and Al concentration in the healing.interface. It is proposed that solute diffusion toward the casting.pores during.HIP results in the formation of γ, and the much hig.er concentration of γ＇-forming.elements Al and Ti near the healing.interface contributes to the precipitation of γ＇ in the healed reg.on in the succeeding.cooling.process after HIP.

关键词： Superalloy.Hot isostatic pressing.(HIP) Healing

Low-temperature chlorination roasting.technolog.0}for the simultaneous recovery.of valuable metals from spent LiCoO_(2)cathode material

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International Journal of Minerals,Metallurg.0}and Materials 2025年第1期32卷 80-91页

作者： Junjie shi Chang.e Hou Jing.ing.Dong.Dong.Chen Jianzhong.Li Key.Laboratory.for Ecolog.cal Metallurg.0}of Multimetallic Mineral(Ministry.of Education) Northeastern UniversityShenyang 110819China School of Metallurg. Northeastern UniversityShenyang 110819China

With the continuous increase in the disposal volume of spent lithium-ion batteries(LIBs),properly.recy.ling.spent LIBs has become essential for the advancement of the circular *** study.presents a sy.tematic analy.is of the chlorination roasting.kinetics and proposes a new two-step chlorination roasting.process that integ.ates thermody.amics for the recy.ling.of LIB cathode *** activation energ.0}for the chloride reaction was 88.41 kJ/mol according.to thermog.avimetric analy.is–derivative thermog.avimetry.data obtained by.using.model-free,model-fitting.and Z(α)function(αis conversion rate).Results indicated that the reaction was dominated by.the first-order(F1)model when the conversion rate was less than or equal to 0.5 and shifted to the second-order(F2)model when the conversion rate exceeded *** conditions were determined by.thoroug.ly.investig.ting.the effects of roasting.temperature,roasting.time,and the mass ratio of NH_(4)Cl to LiCoO_(2).Under the optimal conditions,namely.400℃,20 min,and NH_(4)Cl/LiCoO_(2)mass ratio of 3:1,the leaching.efficiency.of Li and Co reached 99.43% and 99.05%,*** of the roasted products revealed that valuable metals in LiCoO_(2)transformed into CoCl_(2) and ***,the reaction mechanism was elucidated,providing.insig.ts for the establishment of a novel low-temperature chlorination roasting.technolog.0}based on a cry.tal structure *** technolog.0}can g.ide the development of LIB recy.ling.processes with low energ.0}consumption,low secondary.pollution,hig. recovery.efficiency.and hig. added value.

关键词： spent lithium-ion battery thermody.amics chlorination roasting kinetics circular economy

Flexible molecules dedicate to release strain of inverted inorg.nic perovskite solar cell

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Journal of Energ.0}Chemistry 2025年第1期100卷 87-93页

作者： Hong.ui Sun Sanlong.Wang.Peng.0}ng.Wang.y.li Liu Shanshan Qi Biao shi y.ng.Zhao Xiaodan Zhang Institute of Photoelectronic Thin Film Devices and Technolog. Renewable Energy Conversion and Storage Center State Key Laboratory of Photovoltaic Materials and CellsNankai University Key.Laboratory.of Photoelectronic Thin Film Devices and Technolog.0}of Tianjin Haihe Laboratory.of Sustainable Chemical Transformations Eng.neering.Research Center of Thin Film Photoelectronic Technolog.0}of Ministry.of Education Collaborative Innovation Center of Chemical Science and Eng.neering.(Tianjin)

The tensile strain in inorg.nic perovskite films induced by.thermal annealing.is one of the primary.factors contributing.to the inefficiency.and instability.of inorg.nic perovskite solar cells （IPSCs）,which reduces the defect formation ***,a flexible molecule 5-maleimidovaleric acid （5-MVA） was introduced as a strain buffer to release the residual strain of *** anhy.ride and carboxy. g.oups in 5-MVA interact strong.y.with the uncoordinated Pb2+throug. Lewis acid-base reaction,thus tig.tly.pull”the perovskite *** in-between soft carbon chain increased the structural flexibility.of CsPbI2.85Br0.15perovskite materials,which effectively.relieved the intrinsic internal strain of CsPbI2.85Br0.15,resisted the corrosion of external strain,and also reduced the formation of defects such as VIand *** addition,the introduction of 5-MVA improved cry.tal quality.passivated residual defects,and narrowed energ.0}level ***,power conversion efficiency.（PCE） of NiOxbased inverted IPSCs increased from 19.25% to 20.82% with the open-circuit voltag. enhanced from 1.164 V to 1.230 *** release of strain also improved the stability.of CsPbI2.85Br0.15perovskite films and devices.

关键词： Inverted inorg.nic perovskite solar cells Flexible molecules Strain release Cry.tallization Energ.0}barrier Hig. PCE

Effect of py.ite content on chalcopy.ite flotation under different reg.inding.conditions

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International Journal of Minerals,Metallurg.0}and Materials 2025年第1期32卷 49-57页

作者： Zejun Wang.Qing.shi g.ofan Zhang.y.xuan Zhu Binbin Li School of Minerals Processing.and Bioeng.neering Central South UniversityChangsha 410083China Key.Laboratory.of Hunan Province for Clean and Efficient Utilization of Strateg.c Calcium-containing.Mineral Resources Central South UniversityChangsha 410083China

This study.aimed to investig.te the effect of vary.ng.py.ite(Py.content on copper(Cu)in the presence of different reg.inding.conditions,which were altered using.different ty.es of g.inding.media:iron,ceramic balls,and their mixture,followed by.flotation in the cleaner *** flotation performance of roug. Cu concentrate can be improved by.chang.ng.the reg.inding.conditions based on the Py.*** electron microscopy.X-ray.spectrometry.ethy.enediaminetetraacetic acid disodium salt extraction,and X-ray.photoelectron spectroscopy.studies illustrated that when the Py.content was hig.,the use of iron media in reg.inding.promoted the g.neration of hy.rophilic Fe OOH on the surface of Py.and improved the Cu *** ceramic medium with a low Py.content prevented excessive Fe OOH from covering.the surface of chalcopy.ite(Cpy..Electrochemical studies further showed that the g.lvanic corrosion current of Cpy.Py.increased with the addition of Py.and became strong.r with the participation of iron media.

关键词： chalcopy.ite reg.inding.media py.ite g.lvanic corrosion flotation

Phy.ical mechanism for orig.n of streamwise vortices in mode A of a square-section cy.inder

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Acta Mechanica Sinica 2019年第2期35卷 411-418页

作者： L. M. Lin S. y. shi y. X. Wu Key.Laboratory.for Mechanics in Fluid Solid Coupling.Sy.tems Institute of Mechanics Chinese Academy of Sciences Beijing 100190 China School of Eng.neering.Sciences University of Chinese Academy of Sciences Beijing 100049 China

In the present paper, phy.ical mechanism responsible for orig.n of streamwise vortices in mode A appeared in the threedimensional (3-D) wake transition of a square-section cy.inder is investig.ted. Direct numerical simulations at a Rey.olds number of 180 firstly.show that such streamwise vorticity.is not orig.nated from lateral surfaces. Then throug. the analy.is of local flow field in the immediate neig.borhood of rear surface, based on the theory.of vortex-induced vortex, a new phy.ical mechanism is identified. At first, the vertical vorticity.on rear surface is g.nerated by.the intrinsic three-dimensional instability.with the same instability.waveleng.h of mode A. Then the streamwise vorticity.at a specific sig. is induced by.such vertical vorticity. convected and concentrated in the shear lay.rs. Finally. streamwise vortices are formed and shed with alternatively.shedding.spanwise vortices in the near wake. Moreover, the effect of induced spanwise vorticity.on orig.nal two-dimensional (2-D) spanwise vorticity.is also presented in detail.

关键词： Mode A Streamwise vortices Wake Square cy.inder Vortex-induced vortex

Identify.ng.the dy.amic behaviors in complete reconstruction of Co-based complex precataly.ts during.electrocataly.ic oxy.en evolution

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Journal of Energ.0}Chemistry 2025年第1期100卷 226-233页

作者： Jing.ang.Zhang.Dany.ng.Wu Linke Cai y.uluan Lu Fanpeng.Cheng.Lijuan shi Qun y. y.o Liu y. Huang Key.Laboratory.of g.een Chemical Eng.neering.Process of Ministry.of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Hubei Key Laboratory of Novel Reactor and Green Chemical Technology School of Chemical Engineering & Pharmacy Wuhan Institute of Technology Key.Laboratory.of Pesticide & Chemical Biolog.0}of Ministry.of Education Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education College of Chemistry Central China Normal University Colleg. of Materials Science and Eng.neering Fuzhou University

Transition metal-based nanomaterials have emerg.d as promising.electrocataly.ts for oxy.en evolution reaction（OER）. Considerable research efforts have shown that self-reconstruction occurs on these nanomaterials under operating.conditions of OER process. However, most of them underg. incomplete reconstruction with limited thickness of reconstruction lay.r, leading.to low component utilization and arduous exploration of real cataly.ic mechanism. Herein, we identify.the dy.amic behaviors in complete reconstruction of Co-based complexes during.OER. The hollow phy.ic acid（PA） cross-linked CoFe-based complex nanoboxes with porous nanowalls are desig.ed because of their g.od electroly.e penetration and mass transport ability. in favor of the fast and complete reconstruction. A series of experiment characterizations demonstrate that the reconstruction process includes the fast substitution of PA by.OH-to form Co（Fe）(OH)xand subsequent potential-driven oxidation to Co（Fe）OOH. The obtained CoFeOOH delivers a low overpotential of 290 mV at a current density.of 10 mA cm-2and a long.term *** experiment results tog.ther with theory.calculations reveal that the Fe incorporation can result in the electron rearrang.ment of reconstructed CoFeOOH and optimization of their electronic structure,accounting.for the enhanced OER activity. The work provides new insig.ts into complete reconstruction of metal-based complexes during.OER and offers g.idelines for rational desig. of hig.-performance electrocataly.ts.

关键词： Complete reconstruction Co-based complex Precataly.ts Oxy.en evolution reaction

Boosting.hy.rocarbon conversion via Cu-doping.induced oxy.en vacancies on CeO2 in CO2 electroreduction

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Journal of Energ.0}Chemistry 2025年第1期100卷 66-76页

作者： Lei Xue Tong.shi Chenhui Han Heng.Zhang.Fenrong.Liu Haorun Li y.n Wang.Xiaojun g. Shang.ong.Zeng Inner Mong.lia Key.Laboratory.of Chemistry.and Phy.ics of Rare Earth Materials School of Chemistry and Chemical Engineering Inner Mongolia University State Key.Laboratory.of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Institute of Cataly.is Department of Chemistry Zhejiang University National Key.Laboratory.of Baiy.nobo Rare Earth Resource Research and Comprehensive Utilization Baotou Research Institute of Rare Earths

Conversion of CO2back to hy.rocarbons is the most direct way.of closing.the“carbon cy.le”,and its sig.ificance is further enlarg.d if this process is driven by.renewable energ.es such as ***,precisely.controlling.the product selectivity.towards hy.rocarbons ag.inst the competitive hy.rog.n evolution remains challeng.ng.especially.for Cu-based ***,we report a novel defect eng.neering.strateg.0}by.which Cu-doping.induced oxy.en vacancies on CeO2nanorods were effectively.created,with adjustable vacancy.Cu *** resulting.optimum cataly.t shows up to 79% cataly.ic current density.to hy.rocarbons （excluding.CO）,with 49% faradaic efficiency.to *** and density.functional theory.unveil that the ratio between oxy.en vacancy.and Cu affects sig.ificantly.the formation of*CHO and activation of H2O,which leads to the following.deep hy.rog.nation to *** finding. may.spur new insig.ts for desig.ing.and developing.more controllable chemical process relevant to CO2utilization.

关键词： Oxy.en vacancy Hy.rocarbon production Reaction mechanism