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Multiple Tin Compounds Modified Carbon Fibers to Construct heterogeneous Interfaces for Corrosion Prevention and Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第1期17卷 507-527页

作者： Zhiqiang Guo Di lan Zirui Jia Zhenguo Gao Xuetao Shi Mukun he Hua Guo Guanglei wu Pengfei Yin College of Science Sichuan Agricultural UniversityYa’an 625014People’s Republic of China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002People’s Republic of China Institute of Materials for Energy and Environment State Key Laboratory of Bio‑Fibers and Eco‑TextilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071People’s Republic of China Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’anShaanxi 710072People’s Republic of China

Currently,the demand for electromagnetic wave(EMW)absorbing materials with specific functions and capable of withstanding harsh environments is becoming increasingly ***-component interface engineering is considered an effective means to achieve high-efficiency EMW ***,interface modulation engineering has not been fully discussed and has great potential in the field of EMW *** this study,multi-component tin compound fiber composites based on carbon fiber(CF)substrate were prepared by electrospinning,hydrothermal synthesis,and high-temperature thermal *** utilizing the different properties of different substances,rich heterogeneous interfaces are *** effectively promotes charge transfer and enhances interfacial polarization and conduction *** prepared SnS/SnS_(2)/SnO_(2)/CF composites with abundant heterogeneous interfaces have and exhibit excellent EMW absorption properties at a loading of 50 wt%in epoxy *** minimum reflection loss(RL)is−46.74 dB and the maximum effective absorption bandwidth is 5.28 ***,SnS/SnS_(2)/SnO_(2)/CF epoxy composite coatings exhibited long-term corrosion resistance on Q235 steel ***,this study provides an effective strategy for the design of high-efficiency EMW absorbing materials in complex and harsh environments.

关键词： Electrostatic spinning Component regulation heterogeneous interfaces Electromagnetic wave absorption Corrosion protection

Tuning the interfacial reaction environment via pH-dependent and induced ions to understand C–N bonds coupling performance in NO3- integrated CO2 reduction to carbon and nitrogen compounds over dual Cu-based N-doped carbon catalyst

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Journal of Energy Chemistry 2025年第1期100卷 273-285页

作者： Tianhang Zhou Chen Shen Zhenghao wu Xingying lan Yi Xiao College of Carbon Neutrality Future Technology State Key Laboratory of Heavy Oil Processing China University of Petroleum (Beijing) Institute of Materials Science TU Darmstadt Department of Chemistry Xi'an Jiaotong-Liverpool University Department of Mechanical and Mechatronics Engineering and Waterloo Institute of Nanotechnology University of Waterloo Waterloo

Dual atomic catalysts （DAC）,particularly copper （Cu2）-based nitrogen （N） doped graphene,show great potential to effectively convert CO2and nitrate （NO3-） into important industrial chemicals such as ethylene,glycol,acetamide,and urea through an efficient catalytical process that involves C–C and C–N ***,the origin of the coupling activity remained unclear,which substantially hinders the rational design of Cu-based catalysts for the N-integrated CO2reduction reaction （CO2RR）.To address this challenge,this work performed advanced density functional theory calculations incorporating explicit solvation based on a Cu2-based N-doped carbon (Cu2N6C10) catalyst for *** calculations are aimed to gain insight into the reaction mechanisms for the synthesis of ethylene,acetamide,and urea via coupling in the interfacial reaction *** to the sluggishness of CO2,the formation of a solvation electric layer by anions （F-,Cl-,Br-,and I-） and cations (Na+,Mg2+,K+,and Ca2+) leads to electron transfer towards the Cu *** process significantly accelerates the reduction of *** results reveal that*CO intermediates play a pivotal role in N-integrated ***,the Cu2-based N-doped carbon catalyst examined in this study has demonstrated the most potential for C–N coupling to *** findings reveal that through the process of a condensation reaction between*CO and NH2OH for urea synthesis,*NO3-is reduced to*NH3,and*CO2to*CCO at dual Cu atom *** dual-site reduction facilitates the synthesis of acetamide through a nucleophilic reaction between NH3and the ketene ***,we found that the I-and Mg2+ions,influenced by pH,were highly effective for acetamide and ammonia synthesis,except when F-and Ca2+were ***,the mechanisms of C–N bond formation were investigated via ab-initio molecular dynamics simulations,and we found that adjusting the micro-environment can change the dominant side reaction,shift

关键词： pH-dependent micro-environments C–N coupling Dual Cu-based nitrogen carbon catalysts Explicit solvation model Ion stabilizer AIMD

Sine oculis homeobox homolog family function in gastrointestinal cancer:Progression and comprehensive analysis

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World Journal of Clinical Oncology 2025年第1期16卷 10-24页

作者： Yang-Zheng lan Zheng wu Wen-Jia Chen Xin-Ning Yu Hua-Tao wu Jing Liu Department of The Breast Center Cancer Hospital of Shantou University Medical CollegeShantou 515041Guangdong ProvinceChina Department of General Surgery First Affiliated Hospital of Shantou University Medical CollegeShantou 515041Guangdong ProvinceChina

The sine oculis homeobox homolog(SIX)family,a group of transcription factors characterized by a conserved DNA-binding homology domain,plays a critical role in orchestrating embryonic development and organogenesis across various organisms,including *** six distinct members,from SIX1 to SIX6,each member contributes uniquely to the development and differentiation of diverse tissues and organs,underscoring the versatility of the SIX *** or mutations in SIX genes have been implicated in a spectrum of developmental disorders,as well as in tumor initiation and progression,highlighting their pivotal role in maintaining normal developmental trajectories and cellular *** to target the transcriptional complex of the SIX gene family have emerged as a promising strategy to inhibit tumor *** the development of inhibitors targeting this gene family is still in its early stages,the significant potential of such interventions holds promise for future therapeutic ***,this review aimed to comprehensively explore the advancements in understanding the SIX family within gastrointestinal cancers,focusing on its critical role in normal organ development and its implications in gastrointestinal cancers,including gastric,pancreatic,colorectal cancer,and hepatocellular *** conclusion,this review deepened the understanding of the functional roles of the SIX family and explored the potential of utilizing this gene family for the diagnosis,prognosis,and treatment of gastrointestinal cancers.

关键词： Sine oculis homeobox homolog Gastrointestinal cancer Transcription factor Development Regulation Diagnosis Therapeutics

heterostructured CoFe@N-doped carbon porous polyhedron for efficient microwave absorption

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Nano Research 2023年第2期16卷 1859-1868页

作者： Dan wu Yiqun Wang Shuanglin Deng Di lan Zhongning Xiang Qinchuan he College of Materials and Chemistry&Chemical Engineering Chengdu University of TechnologyChengdu 610059China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002China

The synthesis of wide bandwidth,thin thickness,and high performance microwave absorbing materials has become a hot topic of current ***-organic frameworks with heterojunctions and porous structures are considered as suitable candidates to meet these ***,heterogeneous CoFe@N-doped porous carbon polyhedron composites were successfully synthesized via Fe^(2+)to replace Co in zeolite imidazole *** dielectric properties of composites were enhanced by the replacement of Fe^(2+),and the synergistic effect of dielectric loss and magnetic loss was *** petal-like lamellar structure increases the travel of electromagnetic(EM)waves,and the formation of porous structures improves impedance ***,a reflection loss of−67.30 dB was obtained at a thickness of 2.88 mm,and an ultrabroad wide effective absorption bandwidth of 8.40 GHz was obtained,covering most of the X-band(8–12 GHz)and the whole Ku-band(12–18 GHz).The radar cross section(RCS)reduction value can reach 29.4 dB·m^(2),which means that the radar detector has a smaller probability of detecting *** work describes the unique advantages of metal ion replacement metal-organic frameworks derived materials in structural design,impedance matching,and performance adjustment,and provides a new reference for the field of electromagnetic wave absorption.

关键词： microwave absorption Fe^(2+)replacement ultrabroad bandwidth heterojunction metal-organic framework(MOF)

Performance and transcriptomic response of the English grain aphid, Sitobion avenae, feeding on resistant and susceptible wheat cultivars

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Journal of Integrative Agriculture 2021年第1期20卷 178-190页

作者： lan Hao ZHANG Zhan-feng wu Jun CAO he-he LIU Tong-xian Key Laboratory of Northwest Loess Plateau Crop Pest Management of Ministry of Agriculture and Rural Affairs Northwest A&F UniversityYang ling 712100P.R.China

Plant resistance against insects mainly depends on nutrient restriction and toxic metabolites, but the relative importance of nutrition and toxins remains elusive. We examined performance, nutrition ingestion, and transcriptome response of the English grain aphid, Sitobion avenae, feeding on resistant Xiaoyan 22(XY22) and susceptible Xinong 979(XN979) wheat cultivars. Aphids had lower body weight and fecundity when feeding on XY22 than on XN979, although the phloem sap of XY22 had a higher nutritive quality(in terms of amino acid:sucrose ratio). Aphids feeding on XY22 also had a lower honeydew excretion rate than those on XN979, suggesting that aphids ingested less phloem sap from XY22. The transcriptome data showed 600 differentially expressed genes(DEGs), and 11 of the top 20 KEGG pathways significantly enriched in DEGs were involved in nutrient metabolism. We found 81 DEGs associated with the metabolism of sugars, lipids, and amino acids, 59 of which were significantly downregulated in aphids feeding on XY22. In contrast, there were 18 DEGs related to detoxifying metabolism, namely eight UDP-glucuronosyltransferases, six cytochromes P450 monooxygenases, one glutathione S-transferase, two ATP-binding cassette transporters, and one major facilitator superfamily transporter;12 of these were upregulated in the aphids feeding on XY22. Our results indicated that both the quantity and quality of phloem nutrition available to aphids are critical for the growth and development of aphids, and the higher resistance of XY22 is mainly due to the reduction in phloem sap ingested by aphids, rather than toxic metabolites.

关键词： plant–aphid interaction transcriptome response nutrition restriction

A magnetic hydroxyapatite composite scaffoldbased magnetic therapy for bone repair:an experimental study in canis lupus familiaris

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Regenerative Biomaterials 2017年第2期4卷 97-103页

作者： Jing he Hao Hu Xiaobo Zeng Fang lan Fang wu Yao wu National Engineering Research Centre for Biomaterials Sichuan UniversityChengdu 610064PR China

While the beneficial effect of magnetic nanoparticle on the biological functions of calcium phosphate scaffolds has been well documented,little is known about the effect of magnetic nanoparticle on the in vivo performance of hydroxyapatite(HA)*** this study,to further investigate the influence of magnetic hydroxyapatite(MHA)scaffolds on bone repair and the interactions between the magnetic scaffolds and the exterior magnetic field in vivo,we implanted the scaffolds into a beagle dog experimental model of femur transverse *** with traditional HA scaffolds,the MHA scaffolds could accelerate bone tissue regeneration in situ,especially in the first ***,it had a synergic effect between external magnetic fields and MHA scaffolds on bone repair in *** 1 month,the bone density on MHA exposed to an external magnetic field was roughly 30%greater than that of HA,and only slightly less than the bone density observed on HA after 3 ***,the results suggest the improvement of bone ingrowth is critical for HA scaffold with magnetic fields,which is significant for the early bone fixation and repair.

关键词： magnetic nanoparticles static magnetic fields magnetic hydroxyapatite bone regeneration

How Fast Does It Diverge? Discrete hedging Error with Transaction Costs

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Acta Mathematicae Applicatae Sinica 2021年第3期37卷 548-572页

作者： lan wu Shuo wu School of Mathematical Sciences Peking UniversityBeijing 100871China

In the present paper,we focus on the diverging behavior of discrecte hedging error with transaction *** added the hedging cost to the error *** main idea is to divide the hedging error into two parts:the pure hedging error and transaction cost of *** later part will be diverged when hedging number n goes to *** we show an upper bound of diverging part,which is O(√n)of rebalancing number n,then we prove both the upper bound and the lower bound of discrete hedging error with transaction costs are of√n order,finally we give an approximation of hedging error to determine the coefficient in front of√*** main technique in the proof is Itô’s formula,L’Hopital’s rule and three important lemmas in[Yuri,Kabanov,Mher,*** with Transaction ***-Verlag,Berlin,heidelberg,2009].The numerical result support our theoretical conclusion.

关键词： discrete hedging transaction costs hedging error diverging speed

A New Cooperative Distributed MPC Method Based on Reduction and Classification

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Chinese Journal of Electronics 2017年第3期26卷 564-572页

作者： wu lan WANG Lei College of Electrical Engineering Henan University of Technology Department of Electrical Engineering Hangzhou First Technician College

To decrease the overlarge calculation induced by the centralized processing,a new cooperative distributed Model predictive control(MPC)method is proposed for large-scale systems with coupled *** and classification are investigated by defining the influence degree to reduce the whole system and then to classify the reduced system into several subsystem *** groups are mutually decoupled,while there is relativity between these subsystems comprised in the same ***/cooperative and distributed MPC algorithms for each group are implemented to ensure the feasibility and the stability of the whole ***,for practical applications,the finite times interactive control strategy between different groups is adopted to compensate information loss brought by the reduced subsystem and realize the global cooperative distributed *** algorithm significantly decreases the computational load,has better control *** are given to illustrate the effectiveness of these developed algorithms.

关键词： Large-scale complex system Reduction and classification Influence degree Cooperative distributed Model predictive control(MPC)

A Maximum Principle for General Backward Stochastic Differential Equation

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Journal of Systems Science & Complexity 2016年第6期29卷 1505-1518页

作者： wu Shuang SHU lan School of Mathematical Sciences University of Electronic Science and Technology of China Department of Applied Mathematics China University of Petroleum

In this paper,the authors consider a stochastic control problem where the system is governed by a general backward stochastic differential *** control domain need not be convex,and the diffusion coefficient can contain a control *** authors obtain a stochastic maximum principle for the optimal control of this problem by virtue of the second-order duality method.

关键词： Adjoint equations backward stochastic differential equation maximum principle varia-tional inequality.