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Rational construction and decoration of Li_(5)Cr_(7)Ti_(6)O_(25)@Cnanofibers as stable lithium storage materials

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Journal of Energy Chemistry 2022年第8期31卷 400-410,I0011页

作者： ting-ting wei Panpan Peng yu-Rui Ji Yan-Rong Zhu ting-Feng Yi Ying Xie School of Materials Science and Engineering Northeastern UniversityShenyang 110819LiaoningChina Key Laboratory of Functional Inorganic Material Chemistry Ministry of EducationSchool of Chemistry and Materials ScienceHeilongjiang UniversityHarbin 150080HeilongjiangChina School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao 066004HebeiChina Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province Qinhuangdao 066004HebeiChina

Li_(5)Cr_(7)Ti_(6)O_(25) is regarded as a promising anode material for Li-ion batteries(LIBs)because of its low cost and high theoretical ***,the inherently poor conductivity significantly limits the enhancement of its rate capability and cycling stability,especially at high current *** this work,we construct one-dimensional Li_(5)Cr_(7)Ti_(6)O_(25)/C nanofibers by electrospinning method to enhance the kinetic,which realizes high cycling *** coating enhances the structure stability,insertion/extraction reversibility of Li-ions and electrochemical reaction activity,and facilitates the transfer of *** from the unique architecture and component,the Li_(5)Cr_(7)Ti_(6)O_(25)/C(6.6 wt%)nanofiber shows an excellent rate capability with a reversible de-lithiation capacity of 370.8,290.6,269.2,254.3 and 244.9 m Ah g^(-1) at 200,300,500,800 and 1000 m A g^(-1),*** at a higher current density of 1 A g^(-1),Li_(5)Cr_(7)Ti_(6)O_(25)/C(6.6 wt%)nanofiber shows high cycling stability with an initial de-lithiation capacity of 237.8 m Ah g^(-1) and a capacity retention rate of about 84%after 500 *** density functional theory calculation result confirms that the introduction of carbon on the surface of Li_(5)Cr_(7)Ti_(6)O_(25) changes the total density of states of Li_(5)Cr_(7)Ti_(6)O_(25),and thus improves electronic conductivity of the composite,resulting in a good electrochemical performance of Li_(5)Cr_(7)Ti_(6)O_(25)/C ***_(5)Cr_(7)Ti_(6)O_(25)/C nanofibers indicate a great potential as an anode material for the next generation of high-performance LIBs.

关键词： Lithium-ion battery Anode Li_(5)Cr_(7)Ti_(6)O_(25) Electrospinning Nanofibers

Unlock the potential of Li4Ti5O(12) for high-voltage/long-cycling-life and high-safety batteries: Dual-ion architecture superior to lithium-ion storage

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Journal of Energy Chemistry 2020年第5期29卷 13-18页

作者： Xiaoyuan Shi Shansheng yu ting Deng wei Zhang weitao Zheng State Key Laboratory of Automotive Simulation and Control and School of Materials Science&EngineeringElectron Microscopy Centerand International Center of Future ScienceJilin UniversityChangchun 130012JilinChina Key Laboratory of Polyoxometalate Science of Ministry of Education Northeast Normal UniversityChangchun 130024JilinChina Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074HubeiChina IKERBASQUE Basque Foundation for ScienceBilbao 48013Spain

Li4Ti5O(12)(LTO)has drawn great attention due to its safety and stability in lithium-ion batteries(LIBs).However,high potential plateau at 1.5 V *** reduces the cell voltage,leading to a limited use of ***-ion batteries(DIBs)can achieve high working voltage due to high intercalation potential of ***,we propose a DIB configuration in which LTO is used as anode and the working voltage was 3.5 *** DIB achieves a maximum specific energy of 140 Wh/kg at a specific power of 35 W/kg,and the specific power of 2933 W/kg can be obtained with a remaining specific energy of 11 Wh/*** LIB material shows greatly improved properties in the DIB ***,reversing its disadvantage leads to upgraded performance of *** configuration has also widened the horizon of materials for DIBs.

关键词： Li4Ti5O12 Specific energy Specific power Dual-ion batteries Lithium-ion batteries

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大脑前额叶损伤与PTSD发病的相关性探讨

智慧健康 2017年第16期3卷 42-45页

作者：魏玉婷严兴科张彦峰甘肃中医药大学针灸推拿学院甘肃兰州730000

创伤后应激障碍(PTSD)是一种多发的、流行的精神障碍,严重影响人们的生活。近年来PTSD与前额叶皮质功能相关性的研究从动物实验到临床试验,研究者们做了大量的工作,发现了许多具有指导临床实践的结果。本文通过整理分析近些年国内外学... 详细信息

创伤后应激障碍(PTSD)是一种多发的、流行的精神障碍,严重影响人们的生活。近年来PTSD与前额叶皮质功能相关性的研究从动物实验到临床试验,研究者们做了大量的工作,发现了许多具有指导临床实践的结果。本文通过整理分析近些年国内外学者有关PTSD与前额叶皮质功能相关性的研究,以期为临床防治与治疗提供一些理论依据。

关键词：创伤后应激障碍大脑前额叶相关性

电针不同刺激量对急性期面神经损伤兔细胞因子信号转导抑制因子1、3蛋白表达的影响

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中国中医药信息杂志 2018年第6期25卷 66-68页

作者：李小娟严兴科曹朝霞魏玉婷赵中亭甘肃中医药大学甘肃兰州730000

目的观察电针对急性期面神经损伤兔细胞因子信号转导抑制因子(SOCS)1、SOCS3蛋白表达的影响,确定其较佳刺激量。方法将新西兰兔面神经用特制止血钳压榨5 min,损伤长度约2.5 cm,制作面神经损伤模型。实验分为空白组、假手术组、模型组和... 详细信息

目的观察电针对急性期面神经损伤兔细胞因子信号转导抑制因子(SOCS)1、SOCS3蛋白表达的影响,确定其较佳刺激量。方法将新西兰兔面神经用特制止血钳压榨5 min,损伤长度约2.5 cm,制作面神经损伤模型。实验分为空白组、假手术组、模型组和电针弱、中、强刺激组。电针各组术后1 d予不同刺激量治疗,连续7 d,模型组术后不予任何干预。治疗结束后截取各组受损面神经,采用ABC-ELISA检测介导JAK-STAT负反馈调节SOCS1、SOCS3的蛋白表达。结果与空白组比较,模型组兔SOCS1、SOCS3蛋白表达增加(P<0.01);与模型组比较,电针弱刺激组SOCS1、SOCS3蛋白表达降低(P<0.01)。结论面神经损伤急性期电针弱刺激可使SOCS1、SOCS3蛋白表达趋于正常,电针治疗效应不随刺激量的增强而增加。

关键词：电针电刺激量面神经损伤细胞因子信号转导抑制因子1 细胞因子信号转导抑制因子3 兔

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异径三通失效分析

武汉工程大学学报 2014年第9期36卷 59-65页

作者：何家胜魏玉婷余依伦吴其胡洁文罗欢武汉工程大学机电工程学院湖北武汉430205

为探究武汉市某公司提供的三通断裂件失效原因,首先用三维制图软件绘制了三通的几何模型,导入有限元分析软件进行了应力分析.结果表明,断裂三通失效不是因载荷过大引起的,可能是材料性能不合格或者是材料存在严重缺陷导致的.然后对材料... 详细信息

为探究武汉市某公司提供的三通断裂件失效原因,首先用三维制图软件绘制了三通的几何模型,导入有限元分析软件进行了应力分析.结果表明,断裂三通失效不是因载荷过大引起的,可能是材料性能不合格或者是材料存在严重缺陷导致的.然后对材料的化学成分、金相组织、材料硬度、断口形貌、微区元素进行了检测分析,发现三通材料镍质量分数少于1.05%,远低于国标镍质量分数大于8%的要求,使不锈钢材料防止电化学腐蚀的能力下降;断口处检测有氯离子存在,且三通存在应力腐蚀现象,有裂纹产生;裂纹扩展到一定尺寸,导致三通发生瞬时断裂.

关键词：断裂三通检测分析应力腐蚀

Interconnections between diabetic corneal neuropathy and diabetic retinopathy:diagnostic and therapeutic implications

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Neural Regeneration Research 2025年第8期20卷 2169-2180页

作者： Mingyi yu Faith Teo En Ning Chang Liu yu-Chi Liu Tissue Engineering and Stem Cell Group Singapore Eye Research InstituteSingapore Yong Loo Lin School of Medicine National University of SingaporeSingapore Department of Cornea and External Eye Disease Singapore National Eye CenterSingapore Ophthalmology and Visual Sciences Academic Clinical Program Duke-NUS Medical SchoolSingapore

Diabetic corneal neuropathy and diabetic retinopathy are ocular complications occurring in the context of diabetes *** corneal neuropathy refers to the progressive damage of corneal *** retinopathy has traditionally been considered as damage to the retinal ***,growing evidence suggests that diabetic retinopathy is a complex neurovascular disorder resulting from dysfunction of the neurovascular unit,which includes both the retinal vascular structures and neural *** retinopathy is one of the leading causes of blindness and is frequently screened for as part of diabetic ocular ***,diabetic corneal neuropathy is commonly overlooked and underdiagnosed,leading to severe ocular surface *** studies have found that these two conditions tend to occur together,and they share similarities in their pathogenesis pathways,being triggered by a status of chronic *** review aims to discuss the interconnection between diabetic corneal neuropathy and diabetic retinopathy,whether diabetic corneal neuropathy precedes diabetic retinopathy,as well as the relation between the stage of diabetic retinopathy and the severity of corneal *** also endeavor to explore the relevance of a corneal screening in diabetic eyes and the possibility of using corneal nerve measurements to monitor the progression of diabetic retinopathy.

关键词： cornea corneal nerves diabetes diabetic corneal neuropathy diabetic retinopathy retina

Tilting homeostatic and dyshomeostatic microglial balance in health and disease:transforming growth factor-beta1 as a critical protagonist

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Neural Regeneration Research 2025年第10期20卷 2895-2897页

作者： Nicolas Hugues yu Luo Department of Molecular and Cellular Biosciences University of CincinnatiCincinnatiOHUSA Neuroscience Graduate Program University of CincinnatiCincinnatiOHUSA Division of Immunobiology Cincinnati Children’s Hospital Medical CenterUniversity of Cincinnati College of MedicineCincinnatiOHUSA

Adult microglia,by continuously sensing changes in their environment and communicating with nearly all brain cell types,are considered to be the immune sentinels of the *** the healthy central nervous system(CNS),microglia display a unique molecular homeostatic signature(i.e.,Tmem119,P2ry12,Sall1,Siglech,Gpr34,and Hexb)(Figure 1A).

关键词： Figure signature critical

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增强微胶囊在血液中稳定性的研究

现代生物医学进展 2015年第10期15卷 1812-1815页

作者：陈立张英王雨李珅李娜于炜婷马小军中国科学院大连化学物理研究所生物医学材料工程组辽宁大连116023 中国科学院大学北京100039

目的:通过改进成膜工艺,减少血液中HCO3-对海藻酸钠-ε-聚赖氨酸(ε-AP)微胶囊稳定性的影响,从而增强ε-AP微胶囊在血液中的稳定性,使其能够应用于生物人工肝血浆/血液灌注。方法:改进成膜工艺:在成膜液中添加10 mmol/L的Na HCO3并增加... 详细信息

目的:通过改进成膜工艺,减少血液中HCO3-对海藻酸钠-ε-聚赖氨酸(ε-AP)微胶囊稳定性的影响,从而增强ε-AP微胶囊在血液中的稳定性,使其能够应用于生物人工肝血浆/血液灌注。方法:改进成膜工艺:在成膜液中添加10 mmol/L的Na HCO3并增加ε-聚赖氨酸反应浓度来制备ε-AP微胶囊,用膨胀度表征其机械强度,荧光标记的牛血清白蛋白(FITC-BSA)检测其通透性能,并以微胶囊的膨胀度变化作为衡量指标,考察微胶囊在Na HCO3溶液和血清中的稳定性。结果:改进成膜工艺制备的ε-AP微胶囊与常规条件制备的微胶囊具有接近的机械强度和通透性;改进成膜工艺能够增强的ε-AP微胶囊在Na HCO3溶液和血清中的稳定性;常规条件制备的ε-AP微胶囊在血清中膨胀度增加了约560%,而改进成膜工艺制备的微胶囊膨胀度仅增加160%,其稳定性显著增强。结论:改进成膜工艺能够增强ε-AP微胶囊在血液中的稳定性。

关键词：微胶囊稳定性生物人工肝

Further discussion of CO_(2) huff-n-puff mechanisms in tight oil reservoirs based on NMR monitored fluids spatial distributions

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Petroleum Science 2023年第1期20卷 350-361页

作者： wei-yu Tang James J.Sheng ting-Xue Jiang Unconventional Petroleum Research Institute China University of PetroleumBeijing102249China Bob L.Herd Department of Petroleum Engineering Texas Tech UniversityLubbockTX79409USA Sinopec Research Institute of Petroleum Engineering Beijing100101China

Due to the poor physical properties of tight reservoirs,CO_(2) huff-n-puff(HNP)is considered a potential enhanced oil recovery(EOR)method after primary *** plays a critical role in the effective implementation of CO_(2) *** the optimization requires a good understanding of the EOR *** this work,the spatial distribution of oil saturation under different experimental conditions was analyzed by the NMR method to further discuss the HNP *** to the variation of 1D frequency signal amplitude,we divided the core into the hardly movable area and movable area,the region with the obvious signal decline was defined as the movable area,and the hardly movable area was the region with limited signal *** on that the recovery characteristics of different scenarios were ***,the necessity of the soaking stage was studied,where three scenarios with different soaking times were carried ***,the injection pressure was adjusted to investigate the effect of the pressure *** T_(2) spectra show that soaking has significantly improved the production of crude oil in small pores,and higher oil recovery in a single cycle is observed,but it is lower when the elapsed time(total operation time)is the same.31.03% of oil can be recovered after 3 cycles HNP,which increases to 33.8% and 37.06% for the 4 cycles and 6 cycles *** the pressure gradient increases,more oil is removed out of the matrix,and the oil in the deep part of the reservoir can be effectively *** the CO_(2) huff-n-puff process,the oil distributions are similar to the solution gas drive,the residual oil is distributed at the close end of the core and the range that the oil can be efficiently recovered is limited.

关键词： Tight reservoirs Low-field nuclear magnetic resonance (NMR) CO_(2)huff-n-puff Enhanced oil recovery