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Copper-induced formation of heterostructured Co_(3)O_(4)/CuO hollow nanospheres towards greatly enhanced lithium storage performance

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Chinese Chemical Letters 2024年第2期35卷 594-598页

作者： Junjun Zhang Huiying Lu Tianhao Yao Xin Ji Qingmiao Zhang lingjie meng Jianmin Feng Hongkang Wang College of Geography & Environment Xianyang Normal UniversityXianyang 712000China State Key Lab of Electrical Insulation and Power Equipment Center of Nanomaterials for Renewable Energy (CNRE)School of Electrical EngineeringXi'an Jiaotong UniversityXi'an 710049China School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistryand Instrumental Analysis CenterXi'an Jiaotong UniversityXi'an 710049China

We report a facile template-free fabrication of heterostructured Co_(3)O_(4)/CuO hollow nanospheres using pre-synthesized Co/Cu-glycerate as conformal *** introduction of copper nitrate in the solvothermal reaction system of glycerol/isopropanol/cobalt nitrate readily induces the conversion from solid Co-glycerate to hollow Co/Cu-glycerate nanospheres,and the effect of the Co/Cu atomic ratio on the structure evolution of the metal glycerates as well as their corresponding oxides were *** examined as anode materials for lithium-ion batteries,the well-defined Co_(3)O_(4)/CuO hollow nanospheres with Co/Cu molar ratio of 2.0 demonstrate excellent lithium storage performance,delivering a high reversible capacity of 930 mAh/g after 300 cycles at a current density of 0.5 A/g and a stable capacity of 650 mAh/g after 500 cycles even at a higher current density of 2.0 A/g,which are much better than their counterparts of bare CuO and Co_(3)O_(4).The enhanced lithium storage performance can be attributed to the synergistic effect of the CuO and Co_(3)O_(4)heterostructure with hollow spherical morphology,which greatly enhances the charge/electrolyte transfer and effectively buffers the volume changes upon lithiation/delithiation cycling.

关键词： Lithium-ion batteries Co/Cu-glycerate Hollow nanospheres Co_(3)O_(4)/CuO heterostructure Electrochemical properties

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Recent advances in surface endothelialization of the magnesium alloy stent materials

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Journal of Magnesium and Alloys 2023年第1期11卷 48-77页

作者： Changjiang Pan Xuhui Liu Qingxiang Hong Jie Chen Yuxin Cheng Qiuyang Zhang lingjie meng Juan Dai Zhongmei Yang Lingren Wang Faculty of Mechanical and Material Engineering Jiangsu Provincial Engineering Research Center for Biomaterials and Advanced Medical DevicesHuaiyin Institute of TechnologyHuai’an 223003China The Affiliated Huai’an Hospital of Xuzhou Medical University Huai’an 223003China

Magnesium and its alloy have good mechanical properties and biodegradability,and have become the hotspot of the next-generation biodegradable vascular stent ***,their rapid degradation in vivo and poor biocompatibility are still the bottlenecks of clinical applications for the cardiovascular *** particular,how to induce the repair and regeneration of the vascular endothelial with normal physiological functions on the surface of the magnesium alloy stent materials represents the key to its clinical application in the field of cardiovascular *** has been believed that it is an ideal way to completely solve the postoperative complications through constructing the multifunctional anti-corrosive bioactive coating on the magnesium alloy surface to induce the formation of vascular endothelium with normal physiological ***,how to construct a corrosion-resistant multifunctional bioactive coating with the good endothelial regeneration abilities on the magnesium alloy surface still faces a great *** paper mainly focused on highlighting and summarizing the recent advances in the surface endothelialization of the magnesium alloy materials for the vascular stent,including the bio-inert coating,in-situ immobilization of bioactive molecules on the surface,polymer coating loaded with bioactive factors,novel multifunctional polymer coating,bioactive micropatterns,bioactive layer with glycocalyx-like structure,NO-releasing coating and bioactive sol-gel *** advantages and disadvantages of these strategies were discussed and ***,in the senses of future development and clinical application,this paper analyzed and summarized the development direction and prospect of surface endothelialization of the magnesium alloy vascular *** is anticipated that this review can give the new cues to the surface endothelialization of the cardiovascular magnesium alloy stents and promote future advancements in this field.

关键词： Magnesium alloy Stent Endothelialization Surface coating Surface modification

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椒目的本草考证

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中国药师 2024年第2期27卷 357-364页

作者：段禹彤杨钧涵冉明隋家欣孟令杰孙婉萍辽宁中医药大学药学院辽宁大连116600

通过查阅相关文献和历代本草著作,对椒目的名称、基原产地及采收、功效主治、性味归经等方面进行综述。椒目作为药材名始载于《本草经集注》,后世也多以“椒目”作为正名;椒目为芸香科植物花椒或青椒的种子,秋季8~10月成熟时采摘,炮制... 详细信息

通过查阅相关文献和历代本草著作,对椒目的名称、基原产地及采收、功效主治、性味归经等方面进行综述。椒目作为药材名始载于《本草经集注》,后世也多以“椒目”作为正名;椒目为芸香科植物花椒或青椒的种子,秋季8~10月成熟时采摘,炮制方法有净制、炒制和盐制;能利水消肿,治疗肾虚耳鸣,主治水腹胀满,无毒或小毒。本文对椒目追本溯源,考究药史,厘清椒目的中药基原性能,为椒目的临床正确使用及为国家制定该药材的中药质量标准提供科学依据。

关键词：椒目名称基原采收本草考证

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中国证券期货 2024年第2期 25-34,40页

作者：赵海涛曾树峰吴含英孟令捷任瑞云南省贵金属新材料控股集团股份有限公司昆明650106 渤海银行昆明分行昆明650100

金银期货具有“尖峰厚尾”、波动聚集、有偏和非对称等特征。文章通过构建ARMA(p,q)-GJR-SkT模型刻画金银期货的边缘分布,接着引入Markov状态转换的MRS-SJC-Copula模型考察上期所金银期货主力合约间的动态相关性及结构。结果表明,金银... 详细信息

金银期货具有“尖峰厚尾”、波动聚集、有偏和非对称等特征。文章通过构建ARMA(p,q)-GJR-SkT模型刻画金银期货的边缘分布,接着引入Markov状态转换的MRS-SJC-Copula模型考察上期所金银期货主力合约间的动态相关性及结构。结果表明,金银期货间存在有偏和非对称等特征,同时都具有负向“杠杆效应”,其相依结构是动态变化的,且持续存在高低两种不同状态的概率转换;利空消息对当期金银期货的冲击较大,且下跌带来的冲击要大于上涨产生的影响;动态联动性的内部结构显示金银期货收益率受过去信息的持续影响,同时各自的基差变化对动态相关性影响显著;突发事件的冲击会使金银期货的上下尾发生结构突变,引发风险传染。

关键词：金银期货 GJR-MRS-SJC-Copula模型动态联动性结构突变

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‘Hierarchical self-assembly’ of helical amylose/SWNTs complex

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Science China Chemistry 2008年第3期51卷 269-274页

作者： FU ChuanLong meng lingjie LU QingHua School of Chemistry and Chemical Technology Shanghai Jiaotong UniversityShanghai 200240China

Helical amylose/SWNTs complexes (A/S-C) of various sizes, a single nanotube wrapped by amylose in particular, were demonstrated. The formation process of the helical A/S-C was further explained by a novel hierarchical self-assembly model, including the wrapping of amylose chains around SWNT and the hierarchical self-assembly of wrapped-SWNTs into the superstructural A/S-C. Besides the hydrophobic interaction, the hydrogen bonding also plays a certain role in the self-assembly process.

关键词： self-assembly SWNT amylose helical hydrogen bonding

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3-epi-bufotalin suppresses the proliferation in colorectal cancer cells through the inhibition of the JAK1/STAT3 signaling pathway

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BIOCELL 2022年第11期46卷 2425-2432页

作者： SANHUA LI QINGHONG KONG XIAOKE ZHANG XINTING ZHU CHUNBO YU CHANGYAN YU NIAN JIANG JING HUI lingjie meng YUN LIU Guizhou Provincial College–Based Key Lab for Tumor Prevention and Treatment with Distinctive Medicines Zunyi563000China Life Science Institute of Zunyi Medical University Zunyi563000China School of Preclinical Medicine of Zunyi Medical University Zunyi563000China

Traditional Chinese medicine(TCM)has been increasingly employed in the last decades in China for both preventing and treating a variety of cancers.3-epi-bufotalin is an active ingredient of TCM“Chanpi”with anti-tumor ***,the effect and mechanism of 3-epi-bufotalin on colorectal cancers were not well *** present study demonstrated that 3-epi-bufotalin could reduce viability,trigger apoptosis,and block the cell cycle at the G2/M stage in colorectal cancer cell lines HT29,RKO,and COLO205 in ***,3-epi-bufotalin inhibited the JAK1/STAT3 signaling *** results indicated the anti-proliferation ability of 3-epi-bufotalin in colorectal cancer cells.

关键词： 3-epi-bufotalin Colorectal cancer JAK1/STAT3 signaling pathway Apoptosis

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Synthesis of Poly (3-acetylpyrrolyl methine) with Azobenzene Side Groups and Study on Its Third-order Nonlinear Optical Property

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Journal of Materials Science & Technology 2005年第5期21卷 715-718页

作者： Zhigang ZHANG Hongcai WU lingjie meng Wenhui YI Institute of Photoelectric Technology and Solar Energy School of Electronic and Information Engineering Xi'an JiaotongUniversity Xi'an 710049 China Department of PDP IRICO Group Electronics Company Limited Beijing 100085 China

A novel soluble π-conjugated polymer, poly [（3-acetylpyrrole-2, 5-diyl） p-（N, N-dimethylamino） azobenzylidene] （PAPDMAABE）, was synthesized by condensation of 3-acetylpyrrole with 4-aldehyde-4＇-dimethylaminoazobenzene （ADMAA）. The chemical structure of PAPDMAABE was characterized by Fourier transform infrared spectroscopy （FTIR）, ^1H-NMR, and UV-Vis-NIR spectra. Transmission electron microscope （TEM） analysis for PAPDMAABE indicates that part of PAPDMAABE is in crystal state, due to the short-range order of the polymer. Thermogravimetric analysis （TGA） curve shows that the polymer has good thermal stability and its decomposition temperature is 248℃. The optical band gap of PAPDMAABE obtained from the optical absorption spectrum is about 1.73 eV. The resonant third-order nonlinear optical property of PAPDMAABE at 532 nm was studied using degenerate four-wave mixing （DFWM） technique. The resonant third-order nonlinear optical susceptibility of the polymer is about 7.48×10^-8 esu.

关键词： Poly [(3-acetylpyrrole-2, 5-diyl) p-(N, N-dimethylamino) azobenzylidene] Small optical band gap Degenerate four-wave mixing Third-order nonlinear property

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8,4′-Oxyneolignane glucosides from an aqueous extract of“ban lan gen”(Isatis indigotica root)and their absolute configurations

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Acta Pharmaceutica Sinica B 2017年第6期7卷 638-646页

作者： lingjie meng Qinglan Guo Yufeng Liu Jiangong Shi State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050China

Three pairs of glycosidic 8,4′-oxyneolignane diastereoisomers, named isatioxyneolignosides A-F(1–6), were isolated from an aqueous extract of Isatis indigotica roots. Their structures and absolute configurations were elucidated by comprehensive spectroscopic data analysis and enzyme hydrolysis. The validity of Δδ_(C8-C7) values to distinguish threo and erythro aryl glycerol units and Cotton effects at 235±5 nm to determine absolute configurations at C-8 in 1–6 and their aglycones(1a–6a) are discussed.

关键词： Cruciferae Isatis indigotica Isatioxyneolignosides A-F 8,4′-Oxyneolignane Threolerythro Isomers ΔδC8-C7 value Absolute configuration Cotton effect

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A Study of the Effect of the Miller Cycle on the Combustion of a Supercharged Marine Diesel Engine

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Energy Engineering 2024年第5期121卷 1363-1380页

作者： lingjie Zhao Cong Li Mechanical and Automotive Engineering School Shanghai University of Engineering ScienceShanghai201600China

The Miller cycle is a program that effectively reduces NOx emissions from marine diesel engines by lowering the maximum combustion temperature in the cylinder,thereby reducing NOx *** effectively investigate the impact of Miller cycle optimum combustion performance and emission capability under high load conditions,this study will perform a one-dimensional simulation of the performance of a marine diesel engine,as well as a threedimensional simulation of the combustion in the cylinder.A 6-cylinder four-stroke single-stage supercharged diesel engine is taken as the research *** chassis dynamometer and other related equipment are used to build the test system,carry out the diesel engine bench test,and collect experimental *** simulation results are compared with the test results,and the error is less than 5%.In this study,the authors will use simulation software to simulate several Miller cycle scenarios designed for early inlet valve closure and analyze the impact of the Miller cycle on combustion and emissions at 100%load *** comparing the flow field distribution of the engine at 1500 r/min condition,it was found that proper EIVC can prolong the ignition latency period and homogeneous fuel-air mixture combustion acceleration,but it can reduce pressure and temperature within the piston chamber and NOx ***,the Miller cycle reduces end-of-compression temperatures,which increases combustion duration and exhaust temperatures,making it difficult to improve fuel economy at the optimum fuel consumption point,and closing the intake valves prematurely leads to excessive fuel ***,temperature and heat release rate within the piston chamber,NOx,and SOOT generation were significantly enhanced.

关键词： Miller cycle EIVC combustion NOx emissions marine diesel

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A Bio-inspired Mutual-hook Strategy for the Soft Finger to Improve Load-bearing Capacity and Grasping Stability

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Journal of Bionic Engineering 2024年第3期21卷 1290-1304页

作者： Jie Huang lingjie Gai Xiaofeng Zong Yunquan Li School of Automation China University of GeosciencesWuhan430074China Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex System Wuhan430074China The Shien-Ming Wu School of Intelligent Engineering South China University of TechnologyGuangzhou510641China

Soft grippers have great potential applications in daily life,since they can compliantly grasp soft and delicate ***,the highly elastic fingers of most soft grippers are prone to separate from each other while grasping objects due to their low stiffness,thus reducing the grasping stability and load-bearing *** tackle this problem,inspired from the venus flytrap plant,this work proposes a mutual-hook mechanism to restrain the separation and improve the grasping performance of soft *** novel soft gripper design consists of three modules,a soft finger-cot,two Soft Hook Actuators(SHAs)and two sliding ***,the soft finger-cot covers on the soft finger,increasing the contact area with the target object,two SHAs are fixed to the left and right sides of the finger-cot,and the sliding mechanisms are designed to make SHAs stretch *** demonstrate that the proposed design can restrain the separation of soft fingers substantially,and the soft fingers with the finger-cots can grasp objects three times heavier than the soft fingers without the proposed *** proposed design can provide invaluable insights for soft fingers to restrain the separation while grasping,thus improving the grasping stability and the load-bearing capacity.

关键词： Soft robotics Soft bionic finger-cot Soft hook actuator Grasping stability Load-bearing capacity

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