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Rare Metals 2023年第3期42卷 971-981页

作者： San-Can Han Jia-Le Quan Fu-Guo Zhou yu-Hua Xue Na li feng-yu li Ding Wang School of Materials Science and Engineering University of Shanghai for Science and TechnologyShanghai 200093China

Three-dimensional(3D)functional graphenebased architecture with superior electrical conductivity and good mechanical strength has promising applications in energy storage and ***-adjustable inks make it possible to achieve desired 3D architectures with interconnected and continuous interior networks by microextrusion *** this work,ultra-low-concentration graphene oxide(GO)inks of~15 mg·ml-1 have been obtained and demonstrated in direct 3D printing with a facile cross-linking(direct ink writing).The rheological behavior of the GO strategy by cations,which is the lowest concentration to achieve direct ink writing inks,could be adjusted from 1×10^(4) to 1×10^(5) Pa·s^(-1) with different concentrations of cations due to strong cross-linking networks between GO sheets and ***,the specific strength and electrical conductivity of 3D-printed graphene architecture are notably enhanced,reaching up to 51.7×10^(3) N·m·kg^(-1)and 119 S·m^(-1),which are superior to conventional graphene ***,3D printing graphene-based architecture assembled in micro-superc apacitor exhibits excellent electrochemical performance,which can be ascribed to the effective ion transportation through the interconnected *** strategy demonstrated is useful in the design of complex-shaped,graphene-based architectures for scalable manufacturing of practical energy storage applications.

关键词： Three-dimensional(3D)printing Graphene oxide(GO)inks Cross-linking strategy Graphene-based architecture

Ovarian Toxicity and Epigenetic Mechanisms of Phthalates and Their Metabolites

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Current Medical Science 2021年第2期41卷 236-249页

作者： Hua-hua JIANG Yao-yao DU yu-feng li Reproductive Medical Center Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

Ovary plays an important role in the female reproductive *** maintenance and regulation of ovarian function are affected by various physical and chemical *** the development of industrialization,environmental pollutants have caused great harm to public ***,as a class of endocrine-disrupting chemicals(EDCs),are synthesized and used in large quantities as plasticizers due to their chemical *** are easily released into environment because of their noncovalent interactions with substances,causing human exposure and possibly impairing *** recent years,more and more attention has been paid to the role of epigenetics in the occurrence and development of *** it is urgent to study the role of methylation,gene imprinting,miRNA,and other epigenetic mechanisms in reproductive toxicology.

关键词： epigenetics methylation miRNAs ovarian toxicity phthalates reproductive health

Research on hybrid power filter of 6 kV power grid in coal mine

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Journal of Coal Science & Engineering(China) 2010年第4期16卷 434-440页

作者： WANG yu-feng li Jian Faculty of Electrical and Control Engineering Liaoning Technical University Huludao 125105 China

Studied the harmonic control of the 6 kV power grid in a coal mine *** harmonic suppression and reactive power compensation into account, and complyingwith the economic and efficient technical line of the smart grid, a new hybrid activefilter was proposed and applied to the power grid in the coal mine with the advantagessuch as large capacity, low cost and low *** order to improve detection speed and reducethe succeeding errors to improve the filtering performance of the active power filter,the DFT (Discrete Fourier Transform) sliding window algorithm based on coordinatetransformation and improved hysteresis control method was *** Matlab simulationresults show that the hybrid active filter is satisfactory, can improve the grid powerfactor and can meet the requirements of improving the power quality in the coal mine.

关键词： Hybrid power filter DFT hysteresis control method Matlab

Construction of MnS/MoS_(2) heterostructure on two-dimensional MoS_(2) surface to regulate the reaction pathways for high-performance li-O_(2) batteries

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Journal of Energy Chemistry 2024年第6期93卷 443-452,I0012页

作者： Guoliang Zhang Han yu Xia li Xiuqi Zhang Chuanxin Hou Shuhui Sun Yong Du Zhanhu Guo feng Dang Key Laboratory for liquid-Solid Structure Evolution and.Processing of Materials(Ministry of Education) Shandong UniversityJinan 250061ShandongChina School of Environmental and Material Engineering Yantai UniversityYantai 264005ShandongChina Institute National de la Recherche Scientifique CentreÉnergie Matériaux et TélécommunicationsVarennesQuébec J31S2Canada State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083HunanChina Integrated Composites Lab Department of Mechanical and Construction EngineeringNorthumbria UniversityNewcastle Upon TyneNE18STUK

The inherent catalytic anisotropy of two-dimensional(2D) materials has limited the enhancement of liO_(2) batteries(LOBs) performance due to the significantly different adsorption energies on 2D and edge *** the adsorption strength in 2D materials to the reaction intermediates is essential for achieving high-performance ***,a MnS/MoS_(2) heterostructure is designed as a cathode catalyst by adjusting the adsorption behavior at the *** from the toroidal-like discharge products on the MoS_(2) cathode,the MnS/MoS_(2) surface displays an improved adsorption energy to reaction species,thereby promoting the growth of the film-like discharge *** can disturb the layer growth of MoS_(2),in which the stack edge plane features a strong interaction with the intermediates and limits the growth of the discharge *** and theoretical results confirm that the MnS/MoS_(2) heterostructure possesses improved electron transfer kinetics at the interface and plays an important role in the adsorption process for reaction species,which finally affects the morphology of li_2O_(2),In consequence,the MnS/MoS_(2) heterostructure exhibits a high specific capacity of 11696.0 mA h g^(-1) and good cycle stability over 1800 h with a fixed specific capacity of 600 mA h g^(-1) at current density of100 mA g^(-1) This work provides a novel interfacial engineering strategy to enhance the performance of LOBs by tuning the adsorption properties of 2D materials.

关键词： li-O_(2)batteries Two-dimensional materials MnS/MoS_(2)heterostructure Edge plane Adsorption behavior

The Effect of Vineyard Cover Crop on Main Monomeric Phenols of Grape Berry and Wine in Vitis viniferal L. cv. Cabernet Sauvignon

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Agricultural Sciences in China 2010年第3期9卷 440-448页

作者： XI Zhu-mei ZHANG Zhen-wen CHENG yu-feng li Hua College of Enology Northwest A＆F University/Shaanxi Engineering Research Center for Viti-Viniculture Yangling 712100 P.R.China

This study was conducted to determine the effect of cover crop inter-row in vineyard on main mono-phenol content of grape berry and wine. Three such cover crops, two perennial legumes （white clover and alfalfa） and a perennial gramineous grass （tall fescue） were sown in vineyard. The main phenolic compounds of mature grape berry and wines vinified under the same conditions were extracted with ethyl acetate and diethyl ether and analyzed by high- performance liquid chromatography （HPLC） by comparing to soil tillage. A total of ten phenolic compounds were identified and quantified in the different grape berry and wines, including nonflavonoids （hydroxybenzoic and hydroxycinnamic acids） and flavonoids （flavanols and flavonols）. The concentration of flavonoid compounds （409.43 to 538.63 mg kg^-1 and 56.16 to 81.30 mg L^-1） was higher than nonflavonoids （76.91 to 98.85 mg kg^-1 and 30.65 to 41.22 mg L^-1） for Cabernet Sauvignon grape and wine under different treatments, respectively. In the flavonoid phenolics, Catechin was the most abundant in the different grapes and wines, accounting for 74.94 to 79.70% and 48.60 to 50.62% of total nonanthocyanin phenolics quantified, respectively. Compared to soil tillage, the sward treatments showed a higher content of main mono-phenol and total nonanthocyanin phenolics in grapes and wines. There were significant differences between two cover crop treatments （tall fescue and white clover） and soil tillage for the content of benzoic acid, salicylic acid, caffeic acid, catechin, and total phenolics in the grape berry （P 〈 0.05 or P〈0.01）. The wine from tall fescue cover crop had the highest gallic acid, caffeic acid and catechin. Cover crop system increased the total nonanthocyanin phenolics of grapes and wines in order of the four treatments： tall fescue, white clover, alfalfa, and soil tillage （control）. Cover crop in vineyard increased total phenols of grape berry and wine, and thus improved the quality of wine evidently.

关键词： vineyard cover crops inter-row Cabernet Sauvignon grape berry wine monomeric phenols

Professor Zhifang Chai:Scientific contributions and achievements

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Chinese Chemical Letters 2022年第7期33卷 3297-3302页

作者： yuliang Zhao Chunying Chen Weiyue feng Zhiyong Zhang Diandou Xu Weiqun Shi Shuao Wang yu-feng li CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety&CAS Center for Excellence in Nanoscience National Centre for Nanoscience and TechnologyBeijing 100191China CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety&CAS-HKU Joint Laboratory of Metallomics on Health and Environment&Beijing Metallomics Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Division of Research and Planning Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Laboratory of Nuclear Energy Chemistry Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences(RAD-X)and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhou 215123China

*** Chai,born in October 1942,is a radioanalytical chemist working at the Institute of High Energy Physics,Chinese Academy of Sciences and Soochow *** graduated from Fudan University in *** an Alexander von Humboldt F... 详细信息

关键词： contributions fellow graduate

大型地下空间综合交通枢纽中巨型斜柱长期沉降的监测及预测分析

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科学技术与工程 2024年第5期24卷 2052-2059页

作者：王森禹丽峰艾鹏鹏关渭南黄永虎邓钱瀚深圳市地铁建设集团有限公司深圳518000 中铁四局集团第五工程有限公司九江332000 华东交通大学土木建筑学院南昌330000

结构及其重要构件的长期沉降是影响地下空间综合交通枢纽施工安全的关键因素之一,对其开展监测与预测具有重要的工程意义。以深圳市黄木岗大型地下空间综合交通枢纽为研究背景,采用自动化监测系统,首先监测了12轴巨型斜柱施工后的119期... 详细信息

结构及其重要构件的长期沉降是影响地下空间综合交通枢纽施工安全的关键因素之一,对其开展监测与预测具有重要的工程意义。以深圳市黄木岗大型地下空间综合交通枢纽为研究背景,采用自动化监测系统,首先监测了12轴巨型斜柱施工后的119期长期沉降,分析其长期沉降规律,并评判其预警状态。监测结果表明,斜柱施工后,长期的沉降规律为先在安全状态内小幅波动,再增大至黄色预警状态,最后在安全状态与预警状态之间小幅波动。然后,利用109期监测数据分别构建斜柱沉降的反向传播(back propagation,BP)神经网络模型和遗传算法-BP(genetic algorithm-BP,GA-BP)神经网络模型,并预测之后10期的斜柱累计沉降量以对比验证两种模型效果。结果表明,相比BP神经网络模型,GA-BP神经网络模型的预测值与实测值更吻合。

关键词：巨型斜柱长期沉降分析预警状态沉降预测分析

Generation and detection of squeezed state

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Optoelectronics Letters 2008年第3期4卷 231-233页

作者： SHANG Xu-dong yu li feng Xue-dong YANG Bo-jun Key Laboratory of Optical Communication and light wave Technologies Ministry of Education Beijing University ofPosts and Telecommunications Beijing 100876 China

Soliton amplitude squeezed state is obtained and dctected by using asymmetric Sagnac interferometer and balanced homodyne detecting system. An improved photo detector circuit for quantum state detection is introduced. The circuit has a bandwidth of 10MHz and the saturation power is about 19 mW. A maximum photocurrent noise reduction of 1.1 dB below the shot noise is achieved. Taking the detection efficiency into account,the squeezing will be about 1.5 dB.

关键词：压缩态检测技术孤波不对称性

Effect of Sc on Al_(3)Fe phase and mechanical properties of as-cast AA5052 aluminum alloy

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China Foundry 2024年第3期21卷 257-264页

作者： Yang li Qing yu feng-feng Chen Jia-wen He Hong-mei Yang Meng-nie li Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093China

The AA5052 aluminum alloy is widely used in automobile and aerospace manufacturing,and with the development of light-weight alloys,it is required that these materials exhibit better mechanical *** studies have demonstrated that the addition of Sc to aluminum alloys can improve both the microstructure and properties of the *** this study,the effect of Sc on the Fe-rich phase and properties of the AA5052 aluminum alloy was studied by adding 0%,0.05%,0.2%,and 0.3%*** results show that with the increase of Sc,the coarse needle-like Fe-rich phase gradually transforms into Chinese-script and then nearly spherical particles,reduce the size of Fe-rich phase,and refine the grain with increase of high angle grain boundaries(HAGBs).These microstructure changes enhance the strength of the AA5052 alloy through Sc *** ductility of the alloy is obviously improved because the addition of a lower amount of Sc changes the morphology of Fe-rich phase from needle-like into a Chinese-script,and it is subsequently reduced as a result of significant increase in HAGBs with increasing Sc content.

关键词： AA5052 aluminum alloy Al3Fe phase mechanical properties grain boundary

Machine learning in metal-ion battery research: Advancing material prediction, characterization, and status evaluation

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Journal of Energy Chemistry 2024年第3期90卷 191-204,I0006页

作者： Tong yu Chunyang Wang Huicong Yang feng li Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016LiaoningChina School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016LiaoningChina Department of Physics and Astronomy University of California IrvineIrvineCA92697USA

Metal-ion batteries(MIBs),including alkali metal-ion(li^(+),Na^(+),and K^(3)),multi-valent metal-ion(Zn^(2+),Mg^(2+),and Al^(3+)),metal-air,and metal-sulfur batteries,play an indispensable role in electrochemical energy ***,the performance of MIBs is significantly influenced by numerous variables,resulting in multi-dimensional and long-term challenges in the field of battery research and performance *** learning(ML),with its capability to solve intricate tasks and perform robust data processing,is now catalyzing a revolutionary transformation in the development of MIB materials and *** this review,we summarize the utilization of ML algorithms that have expedited research on MIBs over the past five *** present an extensive overview of existing algorithms,elucidating their details,advantages,and limitations in various applications,which encompass electrode screening,material property prediction,electrolyte formulation design,electrode material characterization,manufacturing parameter optimization,and real-time battery status ***,we propose potential solutions and future directions for the application of ML in advancing MIB development.

关键词： Metal-ion battery Machine learning Electrode materials Characterization Status evaluation