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Enhanced electrochemical property of FePO_4-coated LiNi_(0.5)Mn_(1.5)O_4 as cathode materials for Li-ion battery

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Science Bulletin 2017年第14期62卷 1004-1010页

作者： Ting-Feng Yi yan-mei Li Xiao-Ya Li Jing-Jing Pan Qianyu Zhang yan-Rong Zhu School of Chemistry and Chemical Engineering Anhui University of Technology Key Laboratory of Metallurgical Emission Reduction & Resources Recycling Ministry of Education Anhui University of Technology School of Environment and Civil Engineering Dongguan University of Technology

Pristine LiNi0.5Mnl.5O4 and FePO4-coated one with Fd-3m space groups were prepared by a sol-gel method. The structure and performance were studied by X-ray diffraction （XRD） rietveld refinement, scanning electron microscopy （SEM）, high resolution transmission electron microscopy （HRTEM）, energy dispersive spectrometer （EDS） mapping, electrochemical impedance spectroscopy （EIS） and charge- discharge tests, respectively. The lattice parameters of all samples almost remain the same from the Rietveld refinement, revealing that the crystallographic structure has no obvious difference between pris- tine LiNi0.5Mn1.5O4 and FePO4-coated one. All materials show similar morphologies with uniform particle distribution with small particle size, and FePO4 coating does not affect the morphology of LiNi0.5Mnl05O 4 material. EDS mapping and HRTEM show that FePO4 may be successfully wrapped around the surfaces of ***.s04 particles, and provides an effective coating layer between the electrolyte and the surface of LiNi0.5Mn1.5O4 particles. FePO4 （1 wt%）-coated ***.504 cathode shows the highest discharge capac- ity at high rate （2 C） among all samples. After 80 cycles, the reversible discharge capacity of FePO4 （1 wt%） coated LiNi0.5Mn0.5O4 is 117 mAh g^-1, but the pristine one only has 50 mAh g^-1. FeP04 coating is an effec- tive and controllable way to stabilize the LiNi0.5Mn1.5O4/electrolyte interface, and avoids the direct con- tact between LiNi0.5Mn1.5O4 powders and electrolyte, then suppresses the side reactions and enhances the electrochemical performance of the LiNi0.5Mn1.5O4.

关键词： LiNi0.5Mn1.5O4 FePO4 coating Electrochemical property Lithium-ion batteries

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浅析电影《刮痧》中西文化冲突

湖北开放职业学院学报 2024年第12期37卷 193-194,198页

作者：何建珍吴燕梅张玥贵州黔南经济学院文法学院贵州黔南550600

随着经济全球化进程日益增快,各国文化交流需求更加迫切。由于中西文化差异,国际交往过程中难免出现冲突与碰撞。电影《刮痧》是中西方跨文化交际过程中的小缩影,再现了华裔在美国遇到的文化冲突。本文旨在通过电影所表现的文化冲突对... 详细信息

随着经济全球化进程日益增快,各国文化交流需求更加迫切。由于中西文化差异,国际交往过程中难免出现冲突与碰撞。电影《刮痧》是中西方跨文化交际过程中的小缩影,再现了华裔在美国遇到的文化冲突。本文旨在通过电影所表现的文化冲突对中西方在面子观、朋友观、亲情观、儿童人权观以及法律文化方面进行比较分析,体现中西方文化共性和差异,并提出中西方文化融合的趋势和必然。求同存异是世界文化交流的基本准则,这样各国文化才能更好地传承与发展。

关键词：文化冲突面子观儿童人权观法律文化观文化融合

Effect of wetland plant fermentation broth on nitrogen removal and bioenergy generation in constructed wetland-microbial fuel cells

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Frontiers of Environmental Science & Engineering 2022年第12期16卷 89-100页

作者： Yiting chen Jun yan Mengli chen Fucheng Guo Tao Liu Yi chen Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment(Ministry of Education) Chongqing UniversityChongqing400045China College of Environment and Ecology Chongqing UniversityChongqing400045China

Constructed wetlands(CWs)are widely used as a tertiary treatment technology,and the addition of carbon sources can significantly improve advanced nitrogen ***,excessive carbon sources would lead to an increase in the effluent chemical oxygen demand in CWs,and microbial fuel cells(MFCs)can convert these into *** this study,constructed wetland-microbial fuel cells(CW-MFCs)were built to achieve simultaneous nitrogen removal and electricity generation,using wetland plant litter fermentation broths as carbon *** total nitrogen removal in the groups with fermentation broth addition(FGs)reached 83.33%,which was 19.64%higher than that in the CG(group without fermentation broth),and the mean voltages in the FGs were at least 2.6 times higher than that of the ***,two main components of the fermentation broths,acetic acid(Ac)and humic acid(HA),were identified using a three-dimensional excitation emission matrix and gas chromatograph and added to CW-MFCs to explore the influence mechanism on the treatment *** and electrogenesis presented the same tendency:Ac&HA>Ac>CG’(groups without Ac and HA).These results indicate that Ac and HA increased the abundance of functional genes associated with nitrogen metabolism and electron *** study demonstrated that CW-MFC fermentation broth addition can be a potential strategy for the disposal of secondary effluent and bioelectricity generation.

关键词： Constructed wetland Microbial fuel cell Nitrogen removal Bioenergy generation Carbon source

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诱导癌干细胞铁死亡抗结直肠癌的研究进展

中国药理学通报 2024年第6期40卷 1030-1034页

作者：龚莉娜袁梦玲程雪莹徐晨阳潘俊陈秋彤王玲张自力郭玫南京中医药大学护理学院江苏南京210023

癌干细胞(cancer stem cell,CSC)是结直肠癌发生、发展、转移和复发过程中的“种子”细胞,靶向杀伤CSC为抗结直肠癌治疗提供了新靶标。铁死亡是由于细胞内Fe 2+异常积累,导致胞内产生大量活性氧(reactive oxygen species,ROS)和脂质过... 详细信息

癌干细胞(cancer stem cell,CSC)是结直肠癌发生、发展、转移和复发过程中的“种子”细胞,靶向杀伤CSC为抗结直肠癌治疗提供了新靶标。铁死亡是由于细胞内Fe 2+异常积累,导致胞内产生大量活性氧(reactive oxygen species,ROS)和脂质过氧化物,进而引起细胞死亡的铁依赖细胞死亡方式。研究表明CSC较非癌干细胞更富集铁离子,这为靶向诱导CSC铁死亡抗结直肠癌提供了崭新视角。该文简述诱导CSC铁死亡抗结直肠癌的研究进展,如靶向调节CSC中SLC7A11表达、螯合CSC溶酶体中的铁、靶向CSC表型可塑性、逆转CSC铁稳态和靶向CSC脂滴代谢等策略,为抗肿瘤治疗提供新思路。

关键词：癌干细胞铁死亡结直肠癌活性氧脂质过氧化铁离子

Spatial impact of organic matters from point sources on stream water quality

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Mining Science and Technology 2009年第2期19卷 256-261页

作者： LIU Wen-bao chen Dong-mei Department of Geography Queen＇s University Kingston Ontario K7L 3N6 Canada

To get a better understanding of the spatial impact of organic discharges on stream water quality,a "scenario-testing" approach was proposed to examine how a change in plant treatment efficiency would affect dissolved oxygen(DO) concentration along a *** "upper-lower" boundary technique was applied to conduct sensitivity analysis to observe the responses of DO concentration to different DO-related *** results show a non-linear discrepancy of biochemical oxygen demand(BOD) and DO concentration among different treatment scenarios,which indicates the higher the efficiency of the plant treatment,the shorter the time the stream needs to *** sensitivity analysis reveals that the larger the amount of the waste discharge,the more sensitive the BOD to the biological removal *** addition,the DO is more sensitive to the biological removal parameter than to the reaeration parameter.

关键词： waste treatment dissolved oxygen biological oxygen demand scenario testing sensitivity analysis

血必净在纤维支气管镜肺泡灌洗重症肺炎治疗效果和肺功能的影响

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罕少疾病杂志 2024年第8期31卷 42-44页

作者：薛晴杨美玲刘岩明商丘市第一人民医院河南商丘476100

目的探究血必净(XBJ)联合纤维支气管镜肺泡灌洗(BAL)治疗重症肺炎的临床疗效及安全性。方法选取2020年6月至2022年12月在本院进行治疗80例重症肺炎作为研究对象,依据不同的治疗方式分为两组,其中单药组(n=40)在常规治疗的基础上行BAL,... 详细信息

目的探究血必净(XBJ)联合纤维支气管镜肺泡灌洗(BAL)治疗重症肺炎的临床疗效及安全性。方法选取2020年6月至2022年12月在本院进行治疗80例重症肺炎作为研究对象,依据不同的治疗方式分为两组,其中单药组(n=40)在常规治疗的基础上行BAL,而联合组(n=40)在单药组治疗的基础上追加XBJ。对比两组患者临床疗效、临床症状消失时间、肺功能和动脉血气指标改善情况以及炎症指标水平,并记录两组患者不良反应发生情况。结果联合组临床总显效率高于单药组,并且肺部啰音、体温过高、咳嗽和胸疼等主要临床消失时间均短于单药组(P0.05)。结论常规治疗方案+BAL的基础上添加XBJ可安全有效治疗重症肺炎患者,并且可改善患者动脉血气指标和肺功能,并减轻炎症反应。

关键词：血必净纤维支气管镜肺泡灌洗重症肺炎临床疗效

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Modulated Collective Motions and Condensation of Bacteria

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Chinese Physics Letters 2022年第10期39卷 79-84页

作者： mei-mei Bao Isaiah Eze Igwe Kang chen Tian-Hui Zhang Center for Soft Condensed Matter Physics and Interdisciplinary Research&School of Physical Science and Technology Soochow UniversitySuzhou 215006China Department of Physics Federal University Dutsin-MaKatsina State 821101Nigeria

Bacteria can spontaneously develop collective motions by aligning their motions in dense *** we show that bacteria can also respond collectively to an alternating electrical field and form dynamic clusters oscillating at the same frequency of the *** the dynamic clusters go beyond a critical size,they split into smaller ones *** critical size for splitting depends on the frequency of electric field and the concentration of *** show that,instead of their biological activity,the physical properties of bacteria as charged particles are responsible for the formation of dynamic *** flows across the system play the key role in stabilizing the ***,to form clusters,collective hydrodynamic cooperation between bacteria is important such that no aggregation occurs in dilute *** findings in this study illustrate that bio-systems can respond collectively to an external field,promising an effective way to control and modulate the behavior of ***,the controlled aggregation and condensation of bacteria offer a robust approach to improve the local concentration of bacteria for early and rapid detection,which has wide applications in clinics.

关键词： field collective aggregation

揿针对癌性疼痛效果及其不良反应影响的Meta分析

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医学信息 2024年第12期37卷 30-34页

作者：何雪冬奉燕文琼梅遂宁市中心医院手术麻醉中心遂宁市中心医院中医及中西医结合科

目的分析揿针疗法对癌性疼痛的效果及常见不良反应发生的影响。方法电子检索中国知网（CNKI）、维普（VIP）、万方数据库（Wanfang）、中国生物医学文献数据库（SinoMed）以及Cochrane图书馆（Cochrane Library）、PubMed以及EMbase... 详细信息

目的分析揿针疗法对癌性疼痛的效果及常见不良反应发生的影响。方法电子检索中国知网（CNKI）、维普（VIP）、万方数据库（Wanfang）、中国生物医学文献数据库（SinoMed）以及Cochrane图书馆（Cochrane Library）、PubMed以及EMbase等数据库，集合相关的随机对照研究（RCT）并进行文献质量评价，使用R语言进行效应量合并。结果最终纳入6篇RCT，共520例病例，结果显示试验组疼痛缓解率、VAS评分、NRS评分、VAS+NRS评分、恶心呕吐及便秘发生率优于对照组（P0.05）。结论揿针能够缓解癌性疼痛及镇痛药物引起的恶心呕吐和便秘，提高化疗相关生活质量，但对患者功能状态的改善证据尚不足，同质化、大样本的RCT仍有待进一步开展。

关键词：揿针癌症癌性疼痛

Electrochemistry of Hf(Ⅳ)in NaCl-KCl-Na-K_(2)HfF_(6) molten salts

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International Journal of Minerals,Metallurgy and Materials 2020年第12期27卷 1644-1649页

作者： yan-ke Wu Guo-qing yan Song chen Li-jun Wang GRINM Resources and Environment Tech.Co. LtdBeijing 101407China

The cathodic reduction mechanism of Hf(Ⅳ)ions in a fused Na Cl–KCl–Na F–K_(2) HfF_(6) salt system was studied in various Na F concentrations at 1073 K to obtain a purified dendritic Hf *** results of cyclic voltammetry and square wave voltammetry indicated that the reduction process comprised two steps of Hf(Ⅳ)→Hf(Ⅱ)and Hf(Ⅱ)→Hf at low Na F concentrations(0

关键词： electrochemical behavior cyclic voltammetry potentiostatic electrolysis dendritic hafnium molten salts