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Chemical Research in Chinese Universities 2013年第2期29卷 319-323页

作者： ZHANG Yi-bo wang de-qiang MIAO Zhen-zhen PAN Xi-qiang ZHANG Zhen-dong YANG Xiang-guang Laboratory of Green Chemistry and Process Changchun Institute of Applied Chemistry Changehun 130022 P. R. China University of Chinese Academy of Sciences Beij'ing 100049 P. R. China

The influence of the wettability of a catalyst on the performance of the liquid phase oxidation of p-cresol was investigated. It was found that the surface hydrophobicity of a catalyst, which can be changed by modification with various loadings of polyvinylidene fluoride（PVDF）, has a promotion effect on the catalytic performance. At the same time, the reaction parameters such as oxygen pressure, molar ratio of NaOH to p-cresol, reaction temperature and time on the catalytic performance in the liquid-phase oxidation of p-cresol were optimized. As a result, 10%（mass fraction） PVDF modified cobalt pyrophosphate gave the highest conversion of 94.2% of p-cresol with a selectivity of 94.4% for p-hydroxybenzaldehyde at 348 K and a molar ratio of4：l of NaOH/p-cresol and an oxygen pressure of 1.0 MPa for 3 h.

关键词： Hydrophobicity p-Cresol p-Hydroxybenzaldehyde Oxidation Polyvinylidene fluoride(PVDF)

Robust Adaptive Control of Nonholonomic Systems with Nonlinear Parameterization

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自动化学报 2007年第4期33卷 399-403页

作者： wang qiang-de WEI Chun-Ling College of Electricity Information and Automation Qufu Normal University Rizhao 272826 P. R. China Institute of Automation Southeast University Nanjing 210096 P. R. China

全球适应的州的反馈控制策略与强壮的非线性的飘移和未知非线性的参数在锁住的形式为 nonholonomic 系统的一个类被介绍。一种参数分离技术被介绍把非线性的 parameterization nonholonomic 系统转变成一个象线性一样 parameterized non... 详细信息

全球适应的州的反馈控制策略与强壮的非线性的飘移和未知非线性的参数在锁住的形式为 nonholonomic 系统的一个类被介绍。一种参数分离技术被介绍把非线性的 parameterization nonholonomic 系统转变成一个象线性一样 parameterized nonholonomic 系统。然后，反馈支配设计被使用设计一个全球适应稳定控制器，切换的策略被开发消除 uncontrollability 的现象。建议控制器能保证那得到状态全球性集成到起源的所有系统，当另外的信号仍然保持围住时。模拟例子表明有效性和建议控制器的柔韧的特征。

关键词：不完整系统自适应控制非线性漂移自动化技术

A review of over-discharge protection through prelithiation in working lithium-ion batteries

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Journal of Energy Chemistry 2025年第2期101卷 437-452页

作者： Hanchen wang Yingtian Liu Mingze Jiang qiang Zhang School of Aerospace Engineering National Engineering Research Center of Neuromodulation Tsinghua University Tsinghua Center for Green Chemical Engineering Electrification Department of Chemical Engineering Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Tsinghua University

The demand for high safety and high reliability lithium-ion batteries(LIBs) is strongly considered for practical ***,due to their inherent self-discharge properties or abuse,LIBs face the threat of over-discharge,which induces premature end of life and increased risk of thermal *** addition,a strong demand for batteries with zero-volt storage is strongly considered for aerospace and implantable medical *** this review,we firstly introduce the necessity and the importance of over-discharge and zero-volt protection for *** mechanism of damage to the Cu current collectors and SEI induced by potential changes during over-discharge is *** current over-discharge protection strategies based on whether the zero-crossing potential of the electrodes is ***,the fresh insights into the material design of cathode prelithiation additives are presented from the perspective of over-discharge protection.

关键词： Electrode potential regulation Electrode prelithiation Li-ion batteries Over-discharge protection Zero-volt storage

Optimizing cooling approach of spiral coil for an electromagnetic steel teeming system of ladle in continuous casting production

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Journal of Iron and Steel Research International 2025年第1期32卷 85-94页

作者： Ming He Qing-wei wang Li-jia Zhao wang-zhong Mu Xing-an Liu qiang wang College of Horticulture Shenyang Agricultural UniversityShenyang110866LiaoningChina Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education) Northeastern UniversityShenyang110819LiaoningChina Key Laboratory of Protected Horticulture(Ministry of Education) Shenyang Agricultural UniversityShenyang110866LiaoningChina department of Materials Science and Engineering KTH Royal Institute of TechnologyStockholm10044Sweden

To address the current issues with the conventional slide gate system utilized in the steel teeming process,a unique electromagnetic induction controlled automated steel teeming(EICAST)technology has been *** means of spiral coil in this technology is directly related to its service ***,heat transfer processes of air cooling and spray cooling were compared and ***,the impacts of water temperature,water flow rate and air flow rate were examined in order to maximize the spray cooling *** maintain coil temperature at a low value consistently throughout the entire thermal cycle process of the ladle,a combined cooling mode was finally *** simulation was applied to examine the coil temperature variation with different cooling systems and *** coil operation,spray cooling is said to be more *** controlling the water flow rate and air flow rate,the spray cooling effect is ***,water temperature has little or no impact when using spray *** cooling during the secondary refining process and spray cooling prior to coil operation are combined to further lower coil *** the direction of the spray cooling is from bottom to top,the coil temperature is lowered below 165℃.A practical induction coil cooling plan was provided for the EICAST technology’s production process.

关键词： Electromagnetic induction controlled automated steel teeming technology Spiral coil Spray cooling Heat transfer Continuous casting

Electrocatalytic nitrite reduction to ammonia on isolated bismuth alloyed ruthenium

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Journal of Energy Chemistry 2025年第1期100卷 369-376页

作者： Shiyao Shang Fuzhou wang Zeyi Sun Chaofan qiang Ke Chu School of Materials Science and Engineering Lanzhou Jiaotong UniversityLanzhou 730070GansuChina

Electrochemical reduction of NO_(2)-to NH_(3)(NO_(2)-RR) is recognized as an appealing approach for achieving renewable NH_(3)synthesis and waste NO_(2)-***,we report isolated Bi alloyed Ru (Bi1Ru) as an efficient NO_(2)-RR *** calculations and in situ electrochemical measurements reveal the creation of Bi1-Ru dual sites which can remarkably promote NO_(2)-activation and suppress proton adsorption,while accelerating the NO_(2)-RR protonation energetics to render a high NO_(2)--to-NH_(3)conversion ***,Bi1Ru assembled in a flow cell delivers an NH_(3)yield rate of 1901.4μmol h^(-1)cm^(-2)and an NH_(3)-Faradaic efficiency of 94.3%at an industrial-level current density of 324.3 mA cm^(-2).This study offers new perspectives for designing and constructing p-block single-atom alloys as robust and high-current-density NO_(2)-RR catalysts toward the ammonia electrosynthesis.

关键词： Electrocatalytic reduction of NO_(2)-to NH_(3) Theoretical computations In situel ectrochemical measurements p-Block single-atom alloys

红球菌对煤中硫的脱除及对煤溶胀和抽提性质的影响

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燃料化学学报 2006年第4期34卷 503-505页

作者：王德强水恒福安徽工业大学化学化工学院安徽马鞍山243002

Bio-desulfurization of coal by rhodococcus *** *** kinds of coal were swelled with different organic solvents,and then the swelled coals were treated by rhodococcus *** results show that the ratios of desulfurization of coals increase after they are swelled,especially swelled with NMP,the ratio is more than 80%.On the other side,the swelling and extraction of coal were also studied after the coal had been treated by rhodococcus *** results show that the ratios of swelling increase more than 65%,but the extraction yield decreases for the coal treated by rhodococcus sp.

关键词：红球菌煤脱硫煤溶胀抽提

Isospin splitting of the Dirac mass probed using the relativistic Brueckner-Hartree-Fock theory

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Nuclear Science and Techniques 2025年第2期36卷 123-130页

作者： Pianpian Qin qiang Zhao Hui Tong Chencan wang Sibo wang department of Physics and Chongqing Key Laboratory for Strongly Coupled Physics Chongqing UniversityChongqing 401331China Center for Exotic Nuclear Studies Institute for Basic ScienceDaejeon 34126Korea Helmholtz-Institut für Strahlen-und Kernphysik and Bethe Center for Theoretical Physics Universität BonnBonn D-53115Germany School of Physics and Astronomy Sun Yat-Sen UniversityZhuhai 519082China

The isospin splitting of the Dirac mass obtained using the relativistic Brueckner-Hartree-Fock(RBHF)theory was thor-oughly *** the perspective in the full Dirac space,the long-standing controversy between the momentum-independent approximation(MIA)method and the projection method on the isospin splitting of the Dirac mass in asymmetric nuclear matter was analyzed in *** found that the assumption procedure of the MIA method,which assumes that single-particle potentials are momentum independent,is not a sufficient condition that directly leads to the opposite sign of the isospin splitting of the Dirac mass,whereas the extraction procedure of the MIA method,which extracts single-particle potentials from single-particle potential energy,changes the sign.A formal expression of the Dirac mass was obtained by approximately solving a set of equations involved in the extraction *** opposite isospin splitting of the Dirac mass was mainly caused by the extraction procedure,which forcibly assumed that the momentum dependence of the single-particle potential energy was in a quadratic form,in which the strength was solely determined by a constant scalar *** understanding of the isospin splitting of the Dirac mass from ab initio calculations could enhance our knowledge of neutron-rich systems,such as exotic nuclei and neutron stars.

关键词： Dirac mass Relativistic Brueckner-Hartree-Fock theory Single-particle potential Momentum dependence

Iron-nitrogen-doped porous carbon absorbers constructed from hypercrosslinked ferrocene polymers for efficient electromagnetic wave absorption

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International Journal of Minerals,Metallurgy and Materials 2025年第3期32卷 578-590页

作者： Yi Hu Yijia Zhou Lijia Liu qiang wang Chunhong Zhang Hao Wei Yudan wang Key Laboratory of Superlight Materials&Surface Technology of Ministry of Education College of Materials Science and Chemical EngineeringHarbin Engineering UniversityHarbin 150001China Yantai Research Institute of Harbin Engineering University Yantai 264006China Qingdao Innovation and development Base of Harbin Engineering University Qingdao 266404China

Herein,an external crosslinker facilitated the hypercrosslinking of ferrocene and a nitrogen heterocyclic compound(either melamine or imidazole)through a direct Friedel-Crafts reaction,which led to the formation of nitrogen-containing hypercrosslinked fer-rocene polymer precursors(HCP-FCs).Subsequent carbonization of these precursors results in the production of iron-nitrogen-doped por-ous carbon absorbers(Fe-NPCs).The Fe-NPCs demonstrate a porous structure comprising aggregated nanotubes and *** porosity of this structure can be modulated by adjusting the iron and nitrogen contents to optimize impedance *** uniform dis-tribution of Fe-N_(x)C,N dipoles,andα-Fe within the carbon matrix can be ensured by using hypercrosslinked ferrocenes in constructing porous carbon,providing the absorber with numerous polarization sites and a conductive *** electromagnetic wave absorption performance of the specially designed Fe-NPC-M_(2)absorbers is satisfactory,revealing a minimum reflection loss of-55.3 dB at 2.5 mm and an effective absorption bandwidth of 6.00 GHz at 2.0 *** utilizing hypercrosslinked polymers(HCPs)as precursors,a novel method for developing highly efficient carbon-based absorbing agents is introduced in this research.

关键词： hypercrosslinked polymers porous carbon iron-nitrogen doping annealing

Machine learning-assisted fluorescence visualization for sequential quantitative detection of aluminum and fluoride ions

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Journal of Environmental Sciences 2025年第3期149卷 68-78页

作者： qiang Zhang Xin Li Long Yu Lingxiao wang Zhiqing Wen Pengchen Su Zhenli Sun Suhua wang School of Environmental Science and Engineering Guangdong University of Petrochemical TechnologyMaoming 525000China MOE Key Laboratory of Resources and Environmental System Optimization College of Environmental Science and EngineeringNorth China Electric Power UniversityBeijing 102206China

The presence of aluminum(Al^(3+))and fluoride(F^(−))ions in the environment can be harmful to ecosystems and human health,highlighting the need for accurate and efficient *** this paper,an innovative approach is presented that leverages the power of machine learning to enhance the accuracy and efficiency of fluorescence-based detection for sequential quantitative analysis of aluminum(Al^(3+))and fluoride(F^(−))ions in aqueous *** proposed method involves the synthesis of sulfur-functionalized carbon dots(C-dots)as fluorescence probes,with fluorescence enhancement upon interaction with Al^(3+)ions,achieving a detection limit of 4.2 nmol/***,in the presence of F^(−)ions,fluorescence is quenched,with a detection limit of 47.6 nmol/*** fingerprints of fluorescence images are extracted using a cross-platform computer vision library in Python,followed by data ***,the fingerprint data is subjected to cluster analysis using the K-means model from machine learning,and the average Silhouette Coefficient indicates excellent model ***,a regression analysis based on the principal component analysis method is employed to achieve more precise quantitative analysis of aluminum and fluoride *** results demonstrate that the developed model excels in terms of accuracy and *** groundbreaking model not only showcases exceptional performance but also addresses the urgent need for effective environmental monitoring and risk assessment,making it a valuable tool for safeguarding our ecosystems and public health.

关键词： Machine learning Aluminum ion detection Fluorine ion detection Fluorescence probe K-means model

Wnt2bb signaling promotes pharyngeal chondrogenic precursor proliferation and chondrocyte maturation by activating Yap expression in zebrafish

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Journal of Genetics and Genomics 2025年第2期52卷 220-230页

作者： Xiaojuan Guo Liping Yang Yujie wang Mengna Yuan Wenqing Zhang Xinyu He qiang wang State Key Laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100101China Division of Cell Developmental and Integrative BiologySchool of MedicineSouth China University of TechnologyGuangzhouGuangdong 510006China Innovation Centre of Ministry of Education for development and Diseases The Sixth Affiliated HospitalSchool of MedicineSouth China University of TechnologyGuangzhouGuangdong 510006China

Pharyngeal cartilage morphogenesis is crucial for the formation of craniofacial *** neural crest cells are specified at the neural plate border,migrate to pharyngeal arches,and differentiate into pharyngeal chondrocytes,which subsequently flatten,elongate,and stack like coins during *** the developmental processes prior to chondrocyte maturation have been extensively studied,their subsequent changes in morphology and organization remain largely ***,we show that wnt2bb is expressed in the pharyngeal ectoderm adjacent to the chondrogenic precursor cells in *** of Wnt2bb leads to a reduction in nuclearβ-catenin,which impairs chondrogenic precursor proliferation and disrupts chondrocyte morphogenesis and organization,eventually causing a severe shrinkage of pharyngeal ***,the decrease ofβ-catenin in wnt2bb^(-/-)mutants is accompanied by the reduction of Yap *** of Yap can restore the proliferation of chondrocyte progenitors as well as the proper size,shape,and stacking of pharyngeal *** findings suggest that Wnt/β-catenin signaling promotes Yap expression to regulate pharyngeal cartilage formation in zebrafish.

关键词： Wnt/β-catenin signaling YAP Wnt2bb Chondrocyte maturation Pharyngeal cartilage Zebrafish