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Nano Research 2024年第9期17卷 8126-8133页

作者： Feng qian Shihao yuan Ting Zhang Lei Wang Xiaobo Li Hualin Zheng Qien Xu Zhi David Chen Shibin Li School of Optoelectronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu 610054China Department of Electrical and Computer Engineering and Center for Nanoscale Science and Engineering University of KentuckyLexingtonKentucky 40506USA

perovskite solar cells have shown great potential in the field of underwater solar cells due to their excellent optoelectronic properties;however,their underwater performance and stability still hinder their practical *** this research,a 1H,1H,2H,2H-heptadecafluorodecyl acrylate(HFDA)anti-reflection coating(ARC)was introduced as a high-transparent material for encapsulating perovskite solar modules(pSMs).Op.ical characterization results revealed that HFDA can effectively reduce reflection of light below 800 nm,aiding in the absorp.ion of light within this wavelength range by underwater solar ***,a remarkable efficiency of 14.65%was achieved even at a water depth of 50 ***,the concentration of pb^(2+)for HFDA-encapsulated film is significantly reduced from 186 to 16.5 ppb after being immersed in water for 347 ***,the encapsulated pSMs still remained above 80%of their initial efficiency after continuous underwater illumination for 400 ***,being exposed to air,the encapsulated pSMs maintained 94%of their original efficiency after 1000 h light *** highly transparent ARC shows great potentials in enhancing the stability of perovskite devices,app.icable not only to underwater cells but also extendable to land-based photovoltaic devices.

关键词： underwater photovoltaics perovskite solar modules anti-reflection coating underwater stability

FeNi prussian blue analogues on highly grap.itized carbon nanosheets as efficient glucose sensors

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Rare Metals 2024年第6期43卷 2730-2738页

作者： Jin-Hang Xue Qiu-Hong Sun Cheng Han yuan-Dong Yang Shao-Jie Xu Qi-peng Li Jin-Jie qian College of Life and Environmental Science Wenzhou UniversityWenzhou 325000China College of Chemistry and Materials Engineering Wenzhou UniversityWenzhou 325000China College of Chemistry and Chemical Engineering Zhaotong UniversityZhaotong 657000China

Meeting the continuous glucose monitoring requirements of individuals necessitates the research and development of sensors with high sensitivity and *** this study,a straightforward strategy was proposed for synthesizing ultra-thin oxygen-rich grap.itized carbon nanosheets(denoted as GCS-O).These nanosheets are obtained by calcining a topologically two-dimensional indium-based coordination ***,the growth of FeNi prussian blue analogue(pBA)on GCS-O effectively introduces active sites and increases the nitrogen content within the carbonaceous *** resulting FeNi-pBA/GCS-O composite exhibits excellent glucose sensing performance with a broad linear range of 1 to 1300μmol·L^(-1).Meanwhile,it also achieves a high sensitivity of 2496μA·mmol^(-1)·L·cm^(-2),a limit of detection of 100nmol·L^(-1)(S/N=3),and commendable long-term *** relatively simple synthesis process,excep.ional sensitivity,and satisfactory electrochemical sensing performance of FeNi-pBA/GCS-O open up new directions for biosensor app.ications.

关键词： Coordination polymer Carbon nanosheet prussian blue analogue Surface reconstruction Glucose oxidation

Effect of tungsten carbide particles on microstructure and mechanical properties of Cu alloy composite bit matrix

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Journal of iron and Steel Research international 2024年第2期31卷 519-530页

作者： Ding-qian Dong Feng-yuan He Xin-hui Chen Hui Li Kai-hua Shi Hui-wen Xiong Xin Xiang Li Zhang College of Mechanical Engineering Sichuan University of Science and EngineeringZigong643000SichuanChina State Key Laboratory of powder Metallurgy Central South UniversityChangsha410083HunanChina Zigong Cemented Carbide Co. Ltd.Zigong643011SichuanChina Material Corrosion and protection Key Laboratory of Sichuan province Sichuan University of Science and EngineeringZigong643000SichuanChina

Copper alloy composite bit matrix was prepared by pressureless vacuum infiltration,using at least one of the three kinds of tungsten carbide particles,for example,irregular cast tungsten carbide,monocrystalline tungsten carbide and sintered reduced tungsten carbide *** effects of powder particle morphology,particle size and mass fraction of tungsten carbide on the microstructure and mechanical properties of copper alloy composite were investigated by means of scanning electron microscopy,X-ray diffraction and abrasive wear test in *** results show that tungsten carbide morphology and particle size have obvious effects on the mechanical properties of copper alloy *** tungsten carbide partially dissolved in the copper alloy binding phase,and layers of Cu_(0.3)W_(0.5)Ni_(0.1)Mn_(0.1)C phase with a thickness of around 8–15μm were formed on the edge of the cast tungsten *** 45%irregular crushed fine cast tungsten carbide and 15%monocrystalline cast tungsten carbide were used as the skeleton,satisfactory comprehensive performance of the reinforced copper alloy composite bit matrix was obtained,with the bending strength,impact toughness and hardness reaching 1048 Mpa,4.95 J/cm^(2) and 43.6 HRC,*** main wear mechanism was that the tungsten carbide particles firstly protruded from the friction surface after the copper alloy matrix was worn,and then peeled off from the matrix when further wear occurred.

关键词： polycrystalline diamond compact pressureless vacuum infiltration Copper alloy composite bit matrix Microstructure characterization Abrasive wear behavior

Sinensetin protects against periodontitis through binding to Bach1 enhancing its ubiquitination degradation and improving oxidative stress

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international Journal of Oral Science 2024年第3期16卷 553-562页

作者： Zhiyao yuan Junjie Li Fuyu Xiao Yu Wu Zhiting Zhang Jiahong Shi Jun qian Xudong Wu Fuhua Yan Department of periodontology Nanjing Stomatological HospitalAffiliated Hospital of Medical SchoolInstitute of StomatologyState Key Laboratory of Pharmaceutical BiotechnologySchool of Life SciencesNanjing UniversityNanjingChina

periodontitis is a chronic inflammatory and immune reactive disease induced by the subgingival *** therapeutic effect for suscep.ible patients is often unsatisfactory due to excessive inflammatory response and oxidative ***(Sin)is a nature polymethoxylated flavonoid with anti-inflammatory and antioxidant *** study aimed to explore the beneficial effect of Sin on periodontitis and the specific molecular *** found that Sin attenuated oxidative stress and inflammatory levels of periodontal ligament cells(pDLCs)under inflammatory *** Sin to rats with ligation-induced periodontitis models exhibited a protective effect against periodontitis in *** molecular docking,we identified Bach1 as a strong binding target of Sin,and this binding was further verified by cellular thermal displacement assay and immunofluorescence *** immunoprecipitation-quantitative polymerase chain reaction results also revealed that Sin obstructed the binding of Bach1 to the HMOX1 promoter,subsequently upregulating the expression of the key antioxidant factor *** functional experiments with Bach1 knocked down and overexpressed verified Bach1 as a key target for Sin to exert its antioxidant ***,we demonstrated that Sin prompted the reduction of Bach1 by potentiating the ubiquitination degradation of Bach1,thereby inducing HO-1 expression and inhibiting oxidative ***,Sin could be a promising drug candidate for the treatment of periodontitis by targeting binding to Bach1.

关键词： Bach1 period prompt

Strong Antiferromagnetic Exchange-Coup.ing Observed in Hydride-Bridged Dimeric Dysprosium(Ⅲ)Single-Molecule Magnet

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Chinese Journal of Chemistry 2024年第4期42卷 391-396页

作者： qian-Cheng Luo Ke-Xin Yu peng-Bo Jin Ye-Ye Liu yuan-Qi Zhai Yan-Zhen Zheng Frontier institute of Science and Technology State Key Laboratory of Electrical Insulation and Power EquipmentXi'an Key Laboratory of Electronic Devices and Materials ChemistrySchool of Chemistry and School of PhysicsXi'an Jiaotong University99 Yanxiang RoadXi'anShaanxi710054 China

One dihydride-bridged dimeric Dy(Ⅲ)guanidinate complex,formulated as[{(Me_(3)Si)_(2)NC(Nipr)_(2)}_(2)Dy(μ-H)]_(2)(1Dy),was successfully isolated and the introduction of hydride bridges significantly reduces the intramolecular Dy(Ⅲ)…Dy(Ⅲ)distance to only 3.688(1)Å.To investigate the effect of such a short Dy(Ⅲ)…Dy(Ⅲ)distance on magnetism,we also prepared its dibromide-bridged analogue[{(Me_(3)Si)_(2)NC(Nipr)_(2)}_(2)Dy(μ-Br)]_(2)(2Dy),which has a much longer Dy(Ⅲ)…Dy(Ⅲ)distance of 4.605(4)Å.Surp.isingly,2Dy demonstrates much larger effective energy barrier for magnetization reversal(U_(eff))and higher blocking temperature(T_(B)).The worse performance of 1Dy is attributed to the concerted effect of strong antiferromagnetic interactions between Dy(Ⅲ)ions(J_(total)=–2.683 cm^(–1))and the unparallel arrangement of magnetic p.inciple axes of the Dy(Ⅲ)ions for 1Dy.

关键词： Single-molecule magnets Lanthanides Guanidinate ligand Hydride bridge Magnetic properties Ab initio calculations

Overexpression of the peroxidase gene ZmpRX1 increases maize seedling drought tolerance by promoting root development and lignification

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The Crop Journal 2024年第3期12卷 753-765页

作者： Xiuzhen Zhai Xiaocui Yan Tinashe Zenda Nan Wang Anyi Dong qian Yang yuan Zhong Yue Xing Huijun Duan State Key Laboratory of North China Crop.improvement and Regulation Key Laboratory of Crop Germplasm Resources in North China Ministry of EducationCollege of AgronomyHebei Agricultural UniversityBaoding 071001HebeiChina

Drought is a main abiotic stress factor hindering plant growth,development,and crop ***,it is crucial to understand the mechanisms by which plants cope with drought ***,the function of the maize peroxidase gene ZmpRX1 in drought stress tolerance was investigated by measurement of its expression in response to drought treatment both in a ZmpRX1 overexpression line and a mutant *** higher root lignin accumulation and seedling survival rate of the overexpression line than that of the wild type or mutant support a role for ZmpRX1 in maize drought tolerance by regulating root development and ***,yeast one-hybrid,Dule luciferase and Chip-qpCR assays showed that ZmpRX1 is negatively regulated by a nuclear-localized ZmWRKY86 transcrip.ion *** gene could potentially be used for breeding of drought-tolerant cultivars.

关键词： Drought tolerance Maize ZmpRX1 Root development Lignin biosynthesis

ploidy and fruit trait variation in oil-tea Camellia:imp.ications for ploidy breeding

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Journal of integrative Agriculture 2024年第8期23卷 2662-2673页

作者： Yanmin Li Liangjing Yin Xianyu He Cenlong Hu Ronghua Wu qian Long Shixin Xiao Deyi yuan Key Laboratory of Cultivation and protection for Non-Wood Forest Trees of Ministry of Education/Key Laboratory of Non-Wood Forest products of State Forestry Administration Central South University of Forestry and TechnologyChangsha 410004China qiandongnan institute of Forestry Qiandongnan Miao and Dong Autonomous Prefecture 556000China Dongfeng Forest Farm of Liping County Qiandongnan Miao and Dong Autonomous Prefecture 557300China

plant polyploidy often occurs in conjunction with higher yield and superior ***,obtaining polyploid germplasms is a significant part of *** oil-tea Camellia tree is an important native woody plant that produces high-quality edible oil and includes many species of Camellia with different ***,whether higher ploidy levels in oil-tea Camellia trees are related to better traits remains *** this study,the ploidy levels of 30 different oil-tea Camellia strains in three different species in the *** were determined by flow cytometry and chromosome preparation,and the phenotypic characteristics and fatty acid compositions of the fruits were examined by field observations and laboratory *** correlations between the ploidy level of oil-tea Camellia and the main traits of the fruit were *** results showed that 10 Camellia lanceoleosa strains were diploid,10 Camellia meiocarpa strains were tetraploid and 10 Camellia oleifera strains were *** *** had larger fruit size and weight,more seeds per fruit,greater seed weight per fruit,higher oil content and greater yield per crown width than tetraploid *** and diploid ***,but their fruit peel thickness and fresh seed rate were significantly lower,and these traits were significantly correlated with ploidy *** addition,in terms of fatty acid composition,hexaploid *** had a higher oleic acid content than tetraploid *** and diploid ***,but their linoleic acid,linolenic acid and arachidonic acid contents were *** contents of palmitic acid,stearic acid and total unsaturated fatty acids were not significantly correlated with ploidy *** conclusion,certain correlations exist between the main characteristics of oil-tea Camellia fruit and the ploidy level,and increasing the ploidy level led to an increase in fruit yield with no effect on oil *** discovery of variations in the m

关键词： oil-tea Camellia ploidy level fruit traits correlation polyploidization

Comparative Effectiveness of Mobile Health-Based Comprehensive Smoking Cessation Modalities and Traditional Clinic-Delivered Treatments—Beijing Municipality,China,May 2022 to Ap.il 2024

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China CDC weekly 2024年第22期6卷 516-521页

作者： Shuilian Chu Hang Jing Di Zhang yuan Cao Yunliang qian Xiurong Liu Lin Xiao Zhaohui Tong Lirong Liang Department of Research on Tobacco Dependence Therapies Beijing Institute of Respiratory Medicine and Beijing Chao-Yang HospitalCapital Medical UniversityBeijingChina Beijing Center for Disease prevention and Control BeijingChina Tobacco Control Office Chinese Center for Disease Control and PreventionBeijingChina Department of Respiratory and Critical Care Medicine Beijing Institute of Respiratory Medicine and Beijing Chao-Yang HospitalCapital Medical UniversityBeijingChina

What is already known about this topic?Most Chinese smokers have not accessed professional help due to a lack of sufficient smoking cessation *** health(mHealth)can mitigate obstacles related to time and transportation,thereby providing effective support for smokers seeking to *** is added by this report?This study offers real-world evidence supporting the effectiveness of mHealth-based comprehensive smoking cessation *** findings indicate that these modalities can significantly enhance abstinence rates,albeit to a lesser extent compared to traditional clinicbased *** to the intervention was identified as a critical factor influencing the effectiveness of smoking cessation *** are the imp.ications for public health practice?The mHealth-based comprehensive smoking cessation modalities,with or without mailing cessation medications,present a promising approach to enhancing access to and utilization of smoking cessation *** strategy addresses the significant challenge of limited smoking cessation resources in China.

关键词： smoke Health thereby

Water-soluble chitosan promotes remediation of pb-contaminated soil by Hylotelep.ium spectabile

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Frontiers of Environmental Science & Engineering 2024年第7期18卷 109-122页

作者： Bingxin Guo Yiwei Zhang Junxing Yang Tianwei qian Junmei Guo Xiaona Liu yuan Jiao Tongbin Chen Guodi Zheng Wenjun Li Fei Qi College of Environmental Science and Engineering Taiyuan University of TechnologyShanxi Key Laboratory of Earth Surface Processes and Resource Ecological Security in Fenhe River BasinShanxi Engineering Research Center of Low Carbon Remediation for Water and Soil Pollution in Yellow River BasinJinzhong 030600China Center for Environmental Remediation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Shanxi Transportation Holding Ecological Environment Co. Ltd.Shanxi 030000China Beijing Key Lab for Source Control Technology of Water pollution College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China

Water-soluble chitosan(WSC)has been studied for its ability to mobilize soil pb and promote the phytoremediation by Hylotelep.ium spectabile in pb-contaminated *** aimed to clarify the internal mechanism by which wSC impacts phytoremediation by examining plant growth and pb accumulation performance of *** as well as the pb form,functional groups,and mineral phases of pb-contaminated *** effectively decreased soil pH and activated pb migration in rhizosphere soils,with a considerable increase in water-soluble and acid-extractable pb by 29%-102%and 9%-65%,respectively,and a clear decreasing trend in reducible and oxidizable ***-transform infrared spectroscopy revealed a significant increase in amino and hydroxyl groups in the soil generated by *** coordination of pb with amino and hydroxyl groups may play an important role in the formation of pb complexes and activation of pb in *** field trials,the app.ication of WSC significantly increased pb accumulation in *** by 125.44%,reaching 92 g/hm^(2).Moreover,the organic matter and nitrogen in the soils were increased by WSc,which improved the growth conditions of *** obvious growth inhibition was observed in either the pot or field ***,WSC is a promising chelating agent for mobilizing pb in ***,WSC can be potentially used to boost ***-mediated phytoremediation of pb-contaminatedfarmland.

关键词： phytoremediation pb-contaminated soil Water-soluble chitosan Hylotelep.ium spectabile Fourier transform infrared spectroscopy

Rotating tank experiments for the study of geophysical fluid dynamics

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Journal of Oceanology and Limnology 2024年第5期42卷 1385-1398页

作者： Changming DONG Xiaojie LU Yuli LiU Guoqing HAN Minghan FU qian CAO Yang ZHANG Xu CHEN Yeping yuan international Geophysical Fluid Dynamics Laboratory Nanjing University of Information Science and TechnologyNanjing 210044China Department of Atmospheric and Oceanic Sciences University of CaliforniaLos Angeles CA 90095USA State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519000China Zhejiang Ocean University Zhoushan 316022China Guangdong Ocean University Zhanjiang 524088China Ocean University of China Qingdao 266100China Zhejiang University Hangzhou 310058China

Geophysical fluid dynamics(GFD)is an interdiscip.inary field that studies the large-scale motion of fluids in the natural *** a wide range of app.ications such as weather forecasts and climate prediction,GFD employs various research approaches including in-situ observations,satellite measurements,numerical simulations,theoretical analysis,artificial intelligence,and physical model experiments in *** these approaches,rotating tank experiments provide a valuable tool for simulating naturally-occurring fluid motions in *** proportional scaling and proper techniques,scientists can reproduce multi-scale physical processes of stratified fluids in the rotation system,which allows for the simulation of essential characteristics of fluid motions in the atmosphere and *** this review,rotating tanks of various scales in the world are introduced,as these tanks have been actively used to explore fundamental scientific questions in ocean and atmosphere *** illustrate the GFD experiments,three representative cases are presented to demonstrate the frontier achievements in the the GFD study by using rotating tank experiments:mesoscale eddies in the ocean,convection processes,and plume *** references for the experimental procedures are *** studies are encouraged to further explore the utilization of rotating tanks with improvements in experimental design and integration of other research *** is a promising direction of GFD to help enhance our understanding of the complex nature of fluid motions in the natural world and to address the challenges posed by global environmental changes.

关键词： laboratory experiment rotating tank geophysical fluid dynamics(GFD)