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Self-propelled Leidenfrost droplets on femtosecond-laser-induced surface with periodic hydrophobicity gradient

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International Journal of Extreme Manufacturing 2024年第2期6卷 502-509页

作者： Bohong li Lan Jiang xiaowei li Zhipeng Wang Peng Yi Laser Micro/Nano Fabrication Laboratory School of Mechanical EngineeringBeijing Institute of TechnologyBeijingPeople’s Republic of China Beijing Institute of Technology Chongqing Innovation Center ChongqingPeople’s Republic of China Yangtze Delta Region Academy of Beijing Institute of Technology JiaxingPeople’s Republic of China

The controllable transfer of droplets on the surface of objects has a wide application prospect in the fields of microfluidic devices,fog collection and so *** Leidenfrost effect can be utilized to significantly reduce motion ***,the use of 3D structures limits the widespread application of self-propulsion based on Leidenfrost droplets in microelectromechanical *** manipulate Leidenfrost droplets,it is necessary to create 2D or quasi-2D *** this study,femtosecond laser is applied to fabricate a surface with periodic hydrophobicity gradient(SPHG),enabling directional self-propulsion of Leidenfrost *** field analysis within the Leidenfrost droplets reveals that the vapor layer between the droplets and the hot surface can be modulated by the SPHG,resulting in directional propulsion of the inner *** viscous force between the gas and liquid then drives the droplet to move.

关键词： self-propelled Leidenfrost droplets periodic hydrophobicity gradient femtosecond laser fabrication

Laser-induced stretchable bioelectronic interfaces by frozen exfoliation

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Opto-Electronic Advances 2024年第8期7卷 1-4页

作者： xiaowei li Laser Micro/Nano Fabrication Laboratory School of Mechanical EngineeringBeijing Institute of TechnologyBeijing 100081China

Highly stretchable laser-induced graphene-hydrogel film interfaces in flexible electronic materials are fabricated by frozen exfoliation,and exhibit high stretchability,durability,and design *** technology offers an advanced technological pathway for manufacturing highly flexible *** can be utilized in numerous complex surface applications,providing an advanced technological pathway for manufacturing highly flexible substrates in the future.

关键词： electronic durability utilized

Multifunctional AlPO_(4)reconstructed liMn_(2)O_(4)surface for electrochemical lithium extraction from brine

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Journal of Energy Chemistry 2024年第2期89卷 410-421,I0010页

作者： Jun Gu linlin Chen xiaowei li Guiling Luo linjing Fan Yanhong Chao Haiyan Ji Wenshuai Zhu School of Materials Science and Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina College of Science State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum-BeijingBeijing 102249China School of the Environment and Safety Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

liMn_(2)O_(4)(LMO)electrochemical lithium-ion pump has gained widespread attention due to its green,high efficiency,and low energy consumption in selectively extracting lithium from ***,collapse of crystal structure and loss of lithium extraction capacity caused by Mn dissolution loss limits its industrialized ***,a multifunctional coating was developed by depositing amorphous AlPO_(4)on the surface of LMO using sol-gel *** characterization and electrochemical performance test provided insights into the mechanism of li^(+)embedment and de-embedment and revealed that multifunctional AlPO_(4)can reconstruct the physical and chemical state of LMO surface to improve the interface hydrophilicity,promote the transport of li^(+),strengthen cycle ***,after 20 cycles,the capacity retention rate of 0.5AP-LMO reached 93.6%with only 0.147%Mn dissolution *** average li^(+)release capacity of 0.5AP-LMO//Ag system in simulated brine is 28.77 mg/(g h),which is 90.4%higher than ***,even in the more complex Zabuye real brine,0.5AP-LMO//Ag can still maintain excellent lithium extraction *** results indicate that the 0.5AP-LMO//Ag lithium-ion pump shows promising potential as a li^(+)selective extraction system.

关键词： liMn_(2)O_(4) Multifunctional AlPO_(4)coating li^(+)embedment and de-embedment mechanism Stability Hydrophilicity Various solution

One-step selective separation and efficient recovery of valuable metals from spent lithium batteries by phosphoric acid-based deep eutectic solvent

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Green Chemical Engineering 2024年第3期5卷 390-398页

作者： Yuning Zhang Peng Cui Guiling Luo linlin Chen xiaowei li Yanhong Chao Wenshuai Zhu School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang212013China College of Science State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum-BeijingBeijing102249China College of Chemical Engineering and Environment State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum-BeijingBeijing102249China

With more and more lithium-ion batteries(liBs)being put into production and application,precious metals such as lithium and cobalt are scarce,so it is imminent to recover various strategic metal resources from spent ***,the complex and difficult problem of separating and recovering metals from leaching solutions has been an urgent question that needs to be *** this work,a phosphoric acid-based deep eutectic solvent(DES)was developed for extracting metals from spent liBs and one-step selectively separating and efficiently recovering transition *** prepared DES shows excellent extraction performance for li(100%)and Co(92.8%)at 100°*** addition,the extraction system can effectively separate and precipitate Co through its own components,avoiding the introduction of new precipitants and the destruction of the original composition structure of *** also contributes to the good cycle stability of the extraction system with excellent extraction performance for li(94.3%)and Co(80.8%)after 5 *** work proposes a green method for one-step selectively separating and recovering valuable metals from spent liBs.

关键词： Spent lithium-ion batteries Phosphoric acid-based deep eutectic solvent One-step separation Regenerate

Discovery of a potent and selective cell division cycle 7 inhibitor from 6-(3-fluoropyridin4-yl)thieno[3,2-d]pyrimidin-4(3H)-one derivatives as an orally active antitumor agent

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Acta Pharmaceutica Sinica B 2024年第2期14卷 893-896页

作者： Mingwei Fu Min Ge Wanxiang Yang Chunchen Hu xiaowei li Yuanjiang Wang Shaohua Gou Pharmaceutical Research Center and School of Chemistry and Chemical Engineering Southeast UniversityNanjing 211189China Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research Southeast UniversityNanjing 211189China Zenji Research Laboratories Nanjing 211189China

To the Editor:Kinase cell division cycle 7(CDC7),a cell division cycle protein,takes a vital role in mediating DNA ***7 complexes in the nucleus can phosphorylate the minichromosome maintenance complex(MCM)family members that bind to *** addition,CDC7 kinase,as a molecular switch regulating DNA replication,can mediate DNA damage signaling pathways to stimulate cell cycle termination as well as DNA *** have shown that CDC7 is overexpressed in many types of cancer cells,and its overexpression was related to poor patient survival,tumor grade,genetic instability,aneuploidy and so ***,CDC7 is a promising target for antitumor therapy.

关键词： Cell division cycle 7 DNA replication CDC7 inhibitor Anti-tumor

Masculinizer gene controls sexual differentiation in Hyphantria cunea

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Insect Science 2024年第2期31卷 405-416页

作者： xiaowei li Huihui liu Honglun Bi Yaohui Wang Jun Xu Sufang Zhang Zhen Zhang Ze Zhang Yongping Huang Laboratory of Evolutionary and Functional Genomics School of Life SciencesChongqing UniversityChongqingChina CAS Key Laboratory of Insect Developmental and Evolutionary Biology CAS Centerfor Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyShanghaiChina Key Laboratory of Forest Protection Research Institute of Forest EcologyEnvironment and ProtectionChinese Academy of ForestryState Forestry AdministrationBeijingChina

The Masculinizer gene,Masc,encodes a lepidopteran-specific novel CCCHtype zinc finger protein,which controls sex determination and dosage compensation in Bombyx *** the potential application of it in pest control,it is necessary to investigate the function of Masc gene in Hyphantria cunea,a globally invasive forest *** the present study,we identified and functionally characterized the Masc gene,HcMasc,in *** analysis revealed that HcMASC contained the conserved CCCH-type zinc finger domain,nuclear localization signal,and male determining domain,in which the last was confirmed to be required for its masculinization in BmN cell ***,expression data showed that unlike male-biased expression in ***,Hc-Masc gene expresses in main all developmental stages or tissues in both *** regularly interspaced palindromic repeats(CRISPR)/CRISPR-associated protein 9-based disruption of the common exons 1 and 3 of the HcMasc gene resulted in imbalanced sex ratio and abnormal external genitalia of both *** results suggest that the HcMasc gene is required for both male and female sexual differentiation and dosage compensation in *** and provide a foundation for developing better strategies to control this pest.

关键词： CRISPR/Cas9 dosage compensation Hyphantria cunea Masc sexual differentiation

Screen Exposure and Behavior Problems among Preschoolers:A Meta-Analysis

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Frontiers of Education in China 2024年第1期19卷 99-117页

作者： LU Wenxiang li xiaowei Faculty of Education Beijing Normal UniversityBeijing 100875China

Conflicting results have existed in research on the relationship between screen exposure and behavior problems among preschoolers,so it is necessary to clarify the relationship and provide guidelines regulating their screen *** searching and screening of literature,48 independent samples from 43 quantitative studies are included in the meta-analysis,with 76,049 *** results show a weak positive correlation between screen exposure and behavior problems among preschoolers(r=0.169).The findings show that preschoolers’age and length of exposure have a significantly moderate effect on the relationship between screen exposure and behavior problems among preschoolers,while media types and study design do ***,a stronger correlation is observed between excessive screen exposure and behavior problems among preschoolers aged *** for the appropriate use of digital media among preschoolers and media education are also presented.

关键词： screen exposure media usage preschoolers behavior problems meta-analysis

Friction reactions induced by selective hydrogenation of textured surface under lubricant conditions

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Friction 2024年第1期12卷 174-184页

作者： Naizhou DU Xubing WEI xiaowei li Zan CHEN Shiqi LU Jiaqing DING Cunao FENG Kai CHEN Jianghao QIAO Dekun ZHANG Kwang-Ryeol LEE Tiancai ZHANG School of Materials Science and Physics China University of Mining and TechnologyXuzhou 221116China Key Laboratory of Marine Materials and Related Technologies Zhejiang Key Laboratory of Marine Materials and Protective TechnologiesNingbo Institute of Materials Technology&EngineeringChinese Academy of SciencesNingbo 315201China Computational Science Center Korea Institute of Science and TechnologySeoul 136-791Republic of Korea Technology Development Department Shipbuilding Technology Research InstituteShanghai 200032China

The passivation of hydrogen atoms and the conformation of textured surfaces under oil-lubricated conditions are effective strategies to obtain amorphous carbon(a-C)films with extremely low *** is critical to understanding the influence mechanism of selective surface hydrogenation on the tribological behaviors of textured a-C film under oil-lubricated *** particular,the interactions of hydrogen atoms and lubricants are confusing,which is enslaved to the in situ characterization *** reactive molecular dynamics(RMD)simulations were conducted to analyze the friction response of textured a-C films with selective hydrogenation surfaces under oil-lubricated *** results indicate that the existence of hydrogen atoms on specific bump sites significantly decreases the friction coefficient(μ)of textured a-C film,which is highly dependent on the surface hydrogen *** repulsion between hydrogen atoms and lubricant molecules prompts the formation of a dense lubricant film on the surface of the mating ***,with the enhancement of the surface hydrogen content,the passivation of the friction interface and the repulsion between hydrogen atoms and lubricants play dominant roles in reducing the friction coefficient instead of hydrodynamic lubrication.

关键词： textured amorphous carbon(a-C) selective hydrogenation oil lubrication friction mechanism reactive molecular dynamics(RMD)

The Wisdom Hidden in Yunjin Brocade

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China Book International 2024年第1期 76-79页

作者： Yang Jiyuan li xiaowei Shi Kangni 不详

This book begins with the origin of silkworms,sequentially narrating the uniquely beautiful patterns of Yunjin brocade,the lesser-known but essential design concepts,the ancient wisdom encapsulated in the pick-flower knotting technique,the ingeniously crafted looms,and the numerous exquisite garments made from Yunjin brocade,including pieces that merge modern aesthetics with traditional brocade.

关键词： beautiful sequentially uniquely