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

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 346-359页

作者： Mingyu Wang Jue Tang Mansheng Chu Quan shi Zhen zhang School of Metallurgy Northeastern UniversityShenyang 110819China Liaoning Low-Carbon Steelmaking Technology Engineering Research Center Northeastern UniversityShenyang 110819China Engineering Research Center of Frontier Technologies 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 targeted 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 algorithms using SHAP+extremely random-ized trees(ET).The prediction accuracy of the model within the error range of±0.25 kPa was 92.63%.SHAP analysis was employed to improve the interpretability of the prediction *** effects of various sintering operation parameters on flue pressure,the relation-ship between the numerical range 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 single sample were analyzed.A flue pressure optimization module was also constructed and analyzed when the prediction satisfied the judgment *** operating parameter combination was then *** flue pressure was increased by 5.87%during the verification process,achieving a good optimization effect.

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

Flexible molecules dedicate to release strain of inverted inorganic perovskite solar cell

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Journal of Energy Chemistry 2025年第1期100卷 87-93页

作者： Hongrui Sun Sanlong Wang Pengyang Wang Yali Liu Shanshan Qi Biao shi Ying Zhao Xiaodan zhang Institute of Photoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage Center State Key Laboratory of Photovoltaic Materials and CellsNankai University Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Haihe Laboratory of Sustainable Chemical Transformations Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)

The tensile strain in inorganic perovskite films induced by thermal annealing is one of the primary factors contributing to the inefficiency and instability of inorganic 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 *** anhydride and carboxyl groups in 5-MVA interact strongly with the uncoordinated Pb2+through Lewis acid-base reaction,thus tightly“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 crystal quality,passivated residual defects,and narrowed energy level ***,power conversion efficiency （PCE） of NiOxbased inverted IPSCs increased from 19.25% to 20.82% with the open-circuit voltage 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 inorganic perovskite solar cells Flexible molecules Strain release Crystallization Energy barrier High PCE

Effect of pyrite content on chalcopyrite flotation under different regrinding conditions

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 49-57页

作者： Zejun Wang Qing shi Guofan zhang Yuxuan Zhu Binbin Li School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083China Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources Central South UniversityChangsha 410083China

This study aimed to investigate the effect of varying pyrite(Py)content on copper(Cu)in the presence of different regrinding conditions,which were altered using different types of grinding media:iron,ceramic balls,and their mixture,followed by flotation in the cleaner *** flotation performance of rough Cu concentrate can be improved by changing the regrinding conditions based on the Py *** electron microscopy,X-ray spectrometry,ethylenediaminetetraacetic acid disodium salt extraction,and X-ray photoelectron spectroscopy studies illustrated that when the Py content was high,the use of iron media in regrinding promoted the generation of hydrophilic 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 chalcopyrite(Cpy).Electrochemical studies further showed that the galvanic corrosion current of Cpy-Py increased with the addition of Py and became stronger with the participation of iron media.

关键词： chalcopyrite regrinding media pyrite galvanic corrosion flotation

慢性肝病患者甲状腺功能及性腺功能的变化及意义

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世界华人消化杂志 2016年第9期24卷 1438-1443页

作者：吴希国张仕娟王慎田潍坊医学院附属益都中心医院检验科山东省青州市262500 潍坊医学院附属益都中心医院内分泌科山东省青州市262500

目的:研究慢性肝病男性患者甲状腺及性腺功能的变化及与肝病严重程度的关系.方法:应用化学发光法测定162例慢性肝病男性患者的甲状腺及性腺激素水平,慢性肝病患者根据有无肝硬化分为肝硬化组及非肝硬化组,肝硬化的严重程度依据Child-Pug... 详细信息

目的:研究慢性肝病男性患者甲状腺及性腺功能的变化及与肝病严重程度的关系.方法:应用化学发光法测定162例慢性肝病男性患者的甲状腺及性腺激素水平,慢性肝病患者根据有无肝硬化分为肝硬化组及非肝硬化组,肝硬化的严重程度依据Child-Pugh标准分为A、B、C级,比较各组患者的甲状腺及性腺激素水平.结果:约13%的慢性肝病患者存在甲状腺激素水平的异常.慢性肝病患者的血清TT3,FT3水平显著低于正常对照(1.73 nmol/L±0.38 nmol/L vs 2.59 nmol/L±0.46 nmol/L;4.09 pmol/L±1.35 pmol/L vs 5.23 pmol/L±1.56 pmol/L,均P<0.01),特别是存在肝硬化的患者,其血清TT3、FT3水平显著低于无肝硬化患者(0.96 nmol/L±0.33 nmol/L vs1.84 nmol/L±0.32 nmol/L;3.02 pmol/L±1.10 pmol/L vs 4.33 pmol/L±1.42 pmol/L,均P<0.01),此外Child-Pugh分级B、C级的肝硬化患者TT3、FT3、TT4、FT4水平显著低于A级患者.42%的慢性肝病患者存在继发性性腺功能减退.慢性肝病患者的血清睾酮水平显著低于正常对照组(4.36 ng/mL±2.12 ng/mL vs 7.85 ng/mL±3.31 ng/mL,P<0.01),雌激素水平显著高于正常对照组(45.53 pg/mL±18.79 pg/mL vs 32.26 pg/mL±12.19 pg/mL,P<0.01),特别是存在肝硬化的患者更为明显,而且与非肝硬化患者比较亦有显著的统计学意义.此外在肝硬化患者中Child-Pugh分级B和C级患者的血清睾酮水平显著低于A级患者,雌激素水平显著高于A级患者.无低T3综合征和性腺功能减退的慢性肝病患者其反映病情严重程度的生化指标如AST,ALT等显著好于存在性腺功能减退的患者.结论:慢性肝病患者存在甲状腺及性腺功能的异常,甲状腺激素及性腺激素水平的测定对评价慢性肝病的严重程度具有一定的价值,可作为判断病情和观察治疗效果及预后的重要依据.

关键词：慢性肝病甲状腺功能性腺功能

Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution

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Journal of Energy Chemistry 2025年第1期100卷 226-233页

作者： Jingfang zhang Danyang Wu Linke Cai Youluan Lu Fanpeng Cheng Lijuan shi Qun Yi Yao Liu Yi Huang Key Laboratory of Green Chemical Engineering 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 Biology 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 College of Materials Science and Engineering Fuzhou University

Transition metal-based nanomaterials have emerged as promising electrocatalysts for oxygen 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 undergo incomplete reconstruction with limited thickness of reconstruction layer, leading to low component utilization and arduous exploration of real catalytic mechanism. Herein, we identify the dynamic behaviors in complete reconstruction of Co-based complexes during OER. The hollow phytic acid（PA） cross-linked CoFe-based complex nanoboxes with porous nanowalls are designed because of their good electrolyte 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 together with theory calculations reveal that the Fe incorporation can result in the electron rearrangement of reconstructed CoFeOOH and optimization of their electronic structure,accounting for the enhanced OER activity. The work provides new insights into complete reconstruction of metal-based complexes during OER and offers guidelines for rational design of high-performance electrocatalysts.

关键词： Complete reconstruction Co-based complex Precatalysts Oxygen evolution reaction

Boosting hydrocarbon conversion via Cu-doping induced oxygen vacancies on CeO2 in CO2 electroreduction

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Journal of Energy 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 Yan Wang Xiaojun Gu Shanghong Zeng Inner Mongolia Key Laboratory of Chemistry and Physics 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 Catalysis Department of Chemistry Zhejiang University National Key Laboratory of Baiyunobo Rare Earth Resource Research and Comprehensive Utilization Baotou Research Institute of Rare Earths

Conversion of CO2back to hydrocarbons is the most direct way of closing the“carbon cycle”,and its significance is further enlarged if this process is driven by renewable energies such as ***,precisely controlling the product selectivity towards hydrocarbons against the competitive hydrogen evolution remains challenging,especially for Cu-based ***,we report a novel defect engineering strategy,by which Cu-doping-induced oxygen vacancies on CeO2nanorods were effectively created,with adjustable vacancy/Cu *** resulting optimum catalyst shows up to 79% catalytic current density to hydrocarbons （excluding CO）,with 49% faradaic efficiency to *** and density functional theory unveil that the ratio between oxygen vacancy and Cu affects significantly the formation of*CHO and activation of H2O,which leads to the following deep hydrogenation to *** findings may spur new insights for designing and developing more controllable chemical process relevant to CO2utilization.

关键词： Oxygen vacancy Hydrocarbon production Reaction mechanism

Mechanisms of invasive population establishment and spread of pinewood nematodes in China

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Science China(Life Sciences) 2009年第6期52卷 587-594页

作者： XIE BingYan1,CHENG XinYue2,shi juan3,zhang QingWen4,DAI ShuMing1,CHENG Fei Xue2 & LUO YouQing3 1 Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China 2 Beijing Normal University,Beijing 100875,China 3 Beijing Forestry University,Beijing 100083,China 4 Chinese Agricultural University,Beijing 100094,China Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing China Beijing Normal University Beijing China Beijing Forestry University Beijing China Chinese Agricultural University Beijing China

This paper summarizes the results of our study of the pinewood nematode(Bursaphelenchus xylophi-lus).By population genetic analysis,it was determined that there was no genetic bottle caused by the founder effect and genetic drift in the Chinese invasive *** invasions with large amounts of nematodes from different sources led to rich genetic diversity in the invasive *** high genetic diversity in the invasive process may be one of the genetic mechanisms in its successful *** testing interspecies competition,it was shown that,with high fecundity and a strong competitive ability,*** outcompeted the native species *** in the natural ecosystem during the invasion *** displacement may be one of the ecological mechanisms of ***'s *** addition,an unequal interspecific hybridization with intro-gress was in favor of the invasive species which also accelerated the replacement of *** by *** structures,functions and evolutions of a few important genes that are closely related to the ecological adaptation of pinewood nematodes were studied to explore the molecular mechanism of its ecological ***,the resistance and resilience mechanism of the pine ecosystem invaded by pinewood nematodes was also *** results of these studies uncovered a portion of the genetic and ecological mechanisms of PWN's successful invasion and laid a foundation for further study to obtain a comprehensive interpretation of the mechanisms of the nematode *** results also provided a scientific basis for effectively controlling the occurrence and spread of pine wilt disease which is caused by *** aspects requiring further investigation are considered.

关键词： pinewood nematode bioinvasion genetic diversity ecological adaptation resistance resilience

Return to work in young and middle-aged colorectal cancer survivors:Factors influencing self-efficacy,fear,resilience,and financial toxicity

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World Journal of Gastroenterology 2025年第1期31卷 79-92页

作者： Dan Hu Yue Li Hua zhang Lian-Lian Wang Wen-Wen Liu Xin Yang Ming-Zhao Xiao Hao-Ling zhang juan Li Department of Nursing The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Department of Nursing National Clinical Research Center for Child Health and DisordersMinistry of Education Key Laboratory of Child Development and DisordersChildren’s Hospital of Chongqing Medical UniversityChongqing 400014China Department of Gastrointestinal Surgery The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Department of Biomedical Science Advanced Medical and Dental InstituteUniversity Sains MalaysiaPenang 13200Malaysia Academic Affairs Office The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China

BACKGROUND Return to work(RTW)serves as an indication for young and middle-aged colorectal cancer(CRC)survivors to resume their normal social ***,these survivors encounter significant challenges during their RTW ***,scientific research is necessary to explore the barriers and facilitating factors of returning to work for young and middle-aged CRC *** To examine the current RTW status among young and middle-aged CRC survivors and to analyze the impact of RTW self-efficacy(RTW-SE),fear of progression(FoP),eHealth literacy(eHL),family resilience(FR),and financial toxicity(FT)on their RTW *** A cross-sectional investigation was adopted in this *** September 2022 to February 2023,a total of 209 participants were recruited through a convenience sampling method from the gastrointestinal surgery department of a class A tertiary hospital in *** investigation utilized a general information questionnaire alongside scales assessing RTW-SE,FoP,eHL,FR,and *** analyze the factors that influence RTW outcomes among young and middle-aged CRC survivors,Cox regression modeling and Kaplan-Meier survival analysis were *** A total of 43.54%of the participants successfully returned to work,with an average RTW time of 100 *** regression univariate analysis revealed that RTW-SE,FoP,eHL,FR,and FT were significantly different between the non-RTW and RTW groups(P<0.05).Furthermore,Cox regression multivariate analysis identified per capita family monthly income,job type,RTW-SE,and FR as independent influencing factors for RTW(P<0.05).CONCLUSION The RTW rate requires further *** levels of RTW-SE and FR were found to significantly increase RTW among young and middle-aged CRC *** professionals should focus on modifiable factors,such as RTW-SE and FR,to design targeted RTW support programs,thereby facilitating their timely reintegration into mainstream society.

关键词： Return to work Colorectal neoplasms Return-to-work self-efficacy Fear of progression Family resilience Financial toxicity

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牙科铸钛用型壳材料的研究

特种铸造及有色合金 2002年第3期22卷 42-44页

作者：陈金水刘永宾蔡惠民史书俊张娟天津大学天津医科大学

在国内外牙科铸钛用包埋料的膨胀试验与铸件精度试验的基础上 ,确定牙科铸钛修复体的精度与铸钛专用包埋料膨胀量之间的定量关系 ,并研制出了国产新型铸钛专用包埋料。临床试验结果表明 ,自行研制开发出的新型包埋料在精度上已达到美国... 详细信息

在国内外牙科铸钛用包埋料的膨胀试验与铸件精度试验的基础上 ,确定牙科铸钛修复体的精度与铸钛专用包埋料膨胀量之间的定量关系 ,并研制出了国产新型铸钛专用包埋料。临床试验结果表明 ,自行研制开发出的新型包埋料在精度上已达到美国ADA标准 ,钛冠的颈部间隙值和颌面间隙值在 2 0～ 40

关键词：牙科铸钛型壳材料铸件精度包埋料钛合金