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Bilinear magnetoelectric resistance induced by spin Hall effect

中国科学院地质与地球物理研究所2003学术年会

作者： x.chu~(1,2),Q.ZHANG~1,T.ZHANG~1 AND L.FENG~1 1 Institute of Geology & Geophysics,Chinese Academy of Sciences,Beijing 100029,China 2 Max-Planck Institut f.Chemie,Postfach 3060,Mainz, 55020,Germany

Carbonate rocks of Sinian age,deposited on the Yangtze Platform,southern China,wee studied in order to document secular variations in δS and δC of late Neoproterozoic *** Sinian,equivalent to NeoproterozoicⅢ,has been confined between ca.600 and 544 Ma according to the ages of Barfod et al.(2002) and Jenkins et al.(2002). Stratigraphic units include in ascending order the Doushantuo and Dengying formations.

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Science China Materials 2025年第2期68卷 687-688页

作者： Ruiyue chu Cheng Song School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China

Magnetoresistance(MR)is a fundamental transport phenomenon crucial for reading magnetic *** also plays a key role in understanding how time-reversal symmetry breaking affects electrical *** discoveries of anisotropic MR[1],giant MR[2],tunneling MR[3],and spin Hall magnetoresistance[4]have driven the development of diverse spintronic devices used in data storage,computing,and sensing ***,these MR effects do not scale linearly with the electric field(and thus,electric current).Recently,nonlinear MR,which scales specifically with the electric current(Ic),has been *** magnetic/non-magnetic bilayers,unidirectional spin Hall magnetoresistance(USMR)[5]shows a linear dependence on Ic,with voltage scaling quadratically with the applied electric field,due to interfacial spin-dependent and electron-magnon scattering mechanisms.

关键词： breaking symmetry linearly

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

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

Morphology engineering of ZnO micro/nanostructures under mild conditions for optoelectronic application

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 498-503页

作者： Liang chu Haoyu Shen Hudie Wei Hongyu Chen Guoqiang Ma Wensheng Yan Institute of Carbon Neutrality and New Energy&School of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018China School of Applied Physics and Materials Wuyi UniversityJiangmen 529020China

Zinc oxide(ZnO)serves as a crucial functional semiconductor with a wide direct bandgap of approximately 3.37 *** reaction is commonly used in the synthesis of ZnO micro/nanostructures,given its low cost,simplicity,and easy ***,ZnO morphology engineering has become desirable through the alteration of minor conditions in the reaction process,particularly at room *** this work,ZnO micro/nanostructures were synthesized in a solution by varying the amounts of the ammonia added at low temperatures(including room temperature).The formation of Zn^(2+)complexes by ammonia in the precursor regulated the reaction rate of the morphology engineering of ZnO,which resulted in various structures,such as nanoparticles,nanosheets,microflowers,and single ***,the obtained ZnO was used in the optoelectronic application of ultraviolet detectors.

关键词： morphology engineering low temperature ZnO nanosheets microflowers ultraviolet detector

Alpha-decay properties of nuclei around neutron magic numbers

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Nuclear Science and Techniques 2025年第1期36卷 140-149页

作者： Ming Li chu-xin Chen Lan-Fang xiao Yi Zhang Song Luo xiao-Hua Li School of Nuclear Science and Technology University of South ChinaHengyang 421001China PET‑CT Center Chenzhou First People’s HospitalChenzhou 423000China Hengyang Ecological Environment Monitor Center Hengyang 421001China China Certification and Inspection Group Hefei 230000China National Exemplary Base for International Science and Technology Collaboration of Nuclear Energy and Nuclear Safety University of South ChinaHengyang 421001China Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment University of South ChinaHengyang 421001China Key Laboratory of Low Dimensional Quantum Structures and Quantum Control Hunan Normal UniversityChangsha 410081China

By combining experimental α-decay energies and half-lives, the α-particle preformation factor for nuclei around neutron magic numbers N of 126, 152, and 162 were extracted using the two-potential approach. The nuclei around the shell closure were more tightly bound than adjacent nuclei. Additionally, based on the WS4 mass model (Wang et al., Phys. Lett.B 734, 215 (2014)), we extended the two-potential approach to predict the α-decay half-lives of nuclei around N values of178 and 184 with Z of 119 and 120. We believe that our findings will serve as guidelines for future experimental studies.

关键词： adecay Preformation factor Neutron magic number Heavy and superheavy nuclei

Efficient photocatalytic reduction of CO_(2)to formate by a molecular noble metal-free system

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Science China Chemistry 2025年第1期68卷 152-156页

作者： Lihua Zhang Lingjing Chen Huatian Shi Yue Wei Gui Chen Tai-chu Lau School of Environment and Civil Engineering Research Center for Eco-environmental EngineeringDongguan University of TechnologyDongguan 523808China Department of Chemistry and Institute of Molecular Functional Materials City University of Hong KongHong Kong 999077China

Reducing CO_(2)to carbon-neutral solar fuels can not only alleviate the energy demand but also mitigate the greenhouse *** present,developing an efficient non-noble metal photo/electrocatalytic system for converting CO_(2)to a specific product beyond CO is still a big ***,we report a new cobalt complex bearing 2,2′-bi-1,10-phenanthroline ligand that can photocatalytically reduce CO_(2)to formate(HCOO^(-)).Turnover number(TON)for HCOO^(-)up to 677 with 99%selectivity can be achieved using organic dyes purpurin as photosensitizer and 1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole(BIH)as sacrificial reductant in a CO_(2)-saturated NMP/TEA(v/v,3:1)solution under visible light *** potential electrolysis at-1.41 V(***/Ag Cl)in the presence of 12 mM Et_(3)NHBF_(4)also produced HCOO^(-)with Faradaic efficiency of 39%.Spectroscopic and electrochemical studies suggest that a[CoI-H]species is the key intermediate for CO_(2)reduction.

关键词： photocatalysis noble metal-free CO_(2)reduction formate cobalt hydride

The crosstalk between cellular survival pressures and N6-methyladenosine modification in hepatocellular carcinoma

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Hepatobiliary & Pancreatic Diseases International 2025年第1期24卷 67-75页

作者： chu-Li Fu Zheng-Wei Zhao Qiang-Nu Zhang Department of Hematology and Oncology Guangzhou Women and Children's Medical Center Guangzhou Medical University Biomedicine Research Center Guangdong Provincial Key Laboratory of Major Obstetric Disease Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology the Third Affiliated Hospital of Guangzhou Medical University

Background:Within the tumor microenvironment, survival pressures are prevalent with potent drivers of tumor progression, angiogenesis, and therapeutic resistance. N6-methyladenosine (m6 A) methylation has been recognized as a critical post-transcriptional mechanism regulating various aspects of mRNA metabolism. Understanding the intricate interplay between survival pressures and m6 A modification provides new insights into the molecular mechanisms underlying hepatocellular carcinoma (HCC) progression and highlights the potential for targeting the survival pressures-m6 A axis in HCC diagnosis and *** sources:A literature search was conducted in Pub Med, MEDLINE, and Web of Science for relevant articles published up to April 2024. The keywords used for the search included hepatocellular carcinoma,cellular survival, survival pressure, N6-methyladenosine, tumor microenvironment, stress response, and ***:This review delves into the multifaceted roles of survival pressures and m6 A RNA methylation in HCC, highlighting how survival pressures modulate the m6 A landscape, the impact of m6 A modification on survival pressure-responsive gene expression, and the consequent effects on HCC cell survival,proliferation, metastasis, and resistance to treatment. Furthermore, we explored the therapeutic potential of targeting this crosstalk, proposing strategies that leverage the understanding of survival pressures and m6 A RNA methylation mechanisms to develop novel, and more effective treatments for ***:The interplay between survival pressures and m6 A RNA methylation emerges as a complex regulatory network that influences HCC pathogenesis and progression.

关键词： Hepatocellular carcinoma N6-methyladenosine methylation Hypoxia Target therapy Survival pressure

A Dibenzo-18-crown-6-based Symmetric Dual-coumarin Lead Ion Fluorescent Probe and Its Imaging in Living Cells

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Chemical Research in Chinese Universities 2025年第1期41卷 79-85页

作者： LIU xiaolei GONG Chongzhen PENG xiujing SUN Guoxin YAO Wei chu Yongjie ZHANG Tianyon School of Chemical Engineering and Technology Tianjin UniversityTianjin300072P.R.China Institute for Smart Materials and Engineering School of Chemistry and Chemical EngineeringUniversity of JinanJinan250022P.R.China Key Laboratory of Molecular and Nano Probes Ministry of EducationShandong Normal UniversityJinan250014P.R.China Zaozhuang No.20 Middle School Zaozhuang277011P.R.China Shandong Zhongcheng Test and Testing Co. Ltd.Jinan250100P.R.China

Herein,a turn-on fluorescent probe for the detection of lead ions was developed using 7-diethylaminocoumarin as the fluorophore and dibenzo-18-crown-6 as the recognition *** response performance to lead ions was systematically *** probe showed specific selectivity and high sensitivity to lead ions,with fluorescence intensity at 496 nm increasing linearly with lead ion concentration(R^(2)=0.995)over the range of 1.0×10^(−7)–1.0×10^(−6)mol/L,and an LOD of 11.4 nmol/***’s plot revealed that the probe forms a 1:1 stoichiometry complex with lead ions during the recognition ***,the sensing mechanism of the probe was confirmed by density functional theory calculations,indicating that the recognition mechanism is based on photoinduced electron transfer(PET).The introduction of lead ions blocks PET,resulting in fluorescence ***,it was applied in the detection of practical water samples and bioimaging,demonstrating high application value in the field of chemosensors.

关键词： Coumarin Dibenzo-18-crown-6 Fluorescent probe Pb2+ Bioimaging