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Surface-targeted functionalization of nickel-rich cathodes through synergistic slurry additive approach with multi-level impact using minimal quantity

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Nano Research 2024年第1期17卷 333-343页

作者： Jing Zhang Jiapei Li Longhao Cao wenhua cheng Ziyin Guo Xiuxia Zuo Chao Wang Ya-Jun cheng Yonggao Xia Yudai Huang State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of ChemistryXinjiang UniversityUrumqi 830017China Ningbo Institute of Materials Technology&Engineering Chinese Academy of SciencesNingbo 315201China School of Materials Science and Engineering Tongji UniversityShanghai 200240China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

LiNi0.8Co0.1Mn0.1O_(2)(NCM811),a Ni-rich layered oxide,is a promising cathode material for high-energy density lithium-ion batteries(LIBs).However,its structural instability,caused by adverse phase transitions and continuous oxygen release,as well as deteriorated interfacial stability due to excessive electrolyte oxidative decomposition,limits its widespread *** address these issues,a new concept is proposed that surface targeted precise functionalization(STPF)of the NCM811 cathode using a synergistic slurry additive(SSA)*** approach involves coating the NCM811 particle surface with 3-aminopropyl dimethoxy methyl silane(3-ADMS),followed by the precise deposition of ascorbic acid via an acid-base *** slurry additives induce the formation of an ultra-thin spinel surface layer and a stable cathode–electrolyte interface(CEI),which enhances the electrochemical kinetics and inhibits crack *** STPF strategy implemented by the SSA approach significantly improves the cyclic stability and rate performance of the NCM811 cathode in both half-cell and full-cell *** work establishes a promising strategy to enhance the structural stability and electrochemical performance of nickel-rich cathodes and provides a feasible route to promote practical applications of high-energy density lithium-ion battery technology.

关键词： nickel-rich cathode slurry additive lithium-ion battery cathode–electrolyte interface ascorbic acid phase transition

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Langasite-based SAW high-temperature vibration sensor with temperature decoupling

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Science China(Technological Sciences) 2024年第6期67卷 1946-1956页

作者： ZHANG Juan cheng wenhua WANG Hao ZHANG Lei LI XiangRong MA HongShuai PANG JunQi TAN QiuLin State Key Laboratory of Dynamic Measurement Technology North University of ChinaTaiyuan030051China Department of Mechanical Engineering Taiyuan Institute of TechnologyTaiyuan030008China

Monitoring high-temperature vibrations is critical in aerospace engineering,industrial manufacturing,and energy production,where harsh conditions necessitate robust vibration sensors for detecting anomalous ***,the accuracy of such sensors is often compromised by crosstalk between temperature and vibration *** study introduces a high-temperature vibration sensor based on langasite(LGS)surface acoustic wave(SAW)technology,designed to withstand temperatures up to 500℃.The sensor demonstrates high sensitivity,ranging from 12.54 kHz/g at 25℃ to 15.63 k Hz/g at 500℃.A comprehensive mechanical and electrical coupling model for the SAW vibration sensor was developed by integrating theoretical equations with numerical simulations to optimize the sensor's ***,a novel decoupling algorithm for temperature and vibration was established,achieving thermomechanical decoupling with precise vibration *** results indicated a maximum relative deviation of 4.67%for the *** conclusion,the proposed LGS SAW vibration sensor emerges as a promising solution for the accurate detection of multiple parameters in high-temperature vibration monitoring.

关键词： high temperature langasite(LGS) surface acoustic wave(SAW) piezoelectric vibration sensor temperature decoupling

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基于硅酸镓镧高温压电剪切加速度计的设计与制备

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传感器与微系统 2024年第5期43卷 113-115,120页

作者：李爽程文华梁晓瑞谭秋林中北大学微纳器件与系统教育部重点实验室山西太原030051 中北大学省部共建动态测试技术国家重点实验室山西太原030051 太原科技大学电子信息工程学院山西太原030051

随着航空航天、原子能技术、汽车电子、冶金与石油化工等工业的迅猛发展,迫切需要能够在高温环境下对振动、压力及噪声等进行监测的传感器。本文设计并制备了基于硅酸镓镧(LGS)压电单晶材料的压电加速度传感器。实验结果表明,该传感器... 详细信息

随着航空航天、原子能技术、汽车电子、冶金与石油化工等工业的迅猛发展,迫切需要能够在高温环境下对振动、压力及噪声等进行监测的传感器。本文设计并制备了基于硅酸镓镧(LGS)压电单晶材料的压电加速度传感器。实验结果表明,该传感器的谐振频率约为3 kHz,在常温~800℃,工作频率为80~1 000 Hz范围内,传感器的电荷灵敏度保持稳定,平均值为0.081 pC/g_(n)。该传感器能在800℃高温下稳定工作。

关键词：硅酸镓镧压电加速度计高温 COMSOL 固有频率

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血浆与红细胞不同比例输注对大量失血患者凝血功能及预后的影响分析

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系统医学 2024年第17期9卷 63-66页

作者：邓瑜颖陈会慧成文华南京大学医学院附属盐城第一医院(盐城市第一人民医院)输血科江苏盐城224000 南京大学医学院附属盐城第一医院(盐城市第一人民医院)血液科江苏盐城224000

目的研究和分析血浆与红细胞不同比例输注对大量失血患者凝血功能及预后的影响。方法非随机选取2021年1月—2023年12月在南京大学医学院附属盐城第一医院(盐城市第一人民医院)接受治疗的140例大量失血患者作为研究对象,根据输注比例不... 详细信息

目的研究和分析血浆与红细胞不同比例输注对大量失血患者凝血功能及预后的影响。方法非随机选取2021年1月—2023年12月在南京大学医学院附属盐城第一医院(盐城市第一人民医院)接受治疗的140例大量失血患者作为研究对象,根据输注比例不同进行分组,每组70例。A组采取100 mL新鲜冰冻血浆(fresh frozen plasma,FFP)∶1 U红细胞悬液(red blood cell suspension,RBCs)的输注比例,B组采取100 mL FFP∶1.5 U RBCs输注比。对比两组输注后血常规指标[血红蛋白(hemoglobin,Hb)、血小板(blood platelet,PLT)]水平、输注量(FFP、冷沉淀、血小板)及输注前后凝血功能指标[纤维蛋白原(fibrinogen,Fbg)、凝血酶原时间(prothrombin time,PT)、活化部分凝血活酶时间(activated partial thromboplastin time,APTT)]水平变化。结果输注24 h后,两组Hb水平升高、PLT水平降低,但A组均高于B组,差异有统计学意义(P均0.05)。输注24 h后,两组Fbg水平降低,但A组高于B组;两组PT、APTT水平升高,但A组低于B组,差异有统计学意义(P均<0.05)。结论血浆与红细胞1∶1的输注比例,可快速改善大量失血患者的血常规,对凝血功能的影响更小,血浆输注量更少。

关键词：血浆红细胞输注比例大量失血凝血功能预后

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Effectiveness of Fuling(Poria) and its extracts against spleen deficiency in rats via tonifying spleen

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Journal of Traditional Chinese Medicine 2023年第3期43卷 501-506页

作者： FENG Min JIA Ziming WAN Ming FAN Bolin TANG Xiaoqiao cheng wenhua SUN Fanzhong Hubei Provincial Key Laboratory of Applied Toxicology Hubei Provincial Center for Disease Control and PreventionWuhan 430075China Department of pharmaceutical affairs Hubei Provincial Hospital of TCMWuhan 430074China

OBJECTIVE:To observe and explore the effect of Fuling(Poria) in alleviating the spleen deficiency symptom pattern(SDSP).METHODS:We established an animal model of SDS in Sprague-Dawley(SD) rats by treating them with deficiency-inducing factors,including irregular feeding and tail *** were administered Fuling(Poria) and its extracts(raw/cooked powder,aqueous/alcohol extract) by gavage once a day for 21 *** body weight,rectal temperature,and spleen and thymus organ coefficients were *** levels of motilin(MTL),gastrin(GAS),aquaporin 2(AQP2),interleukin 2(IL-2),IL-4,and 5-hydroxytryptamine(5-HT) in the serum and the level of AQP2 in the kidneys were evaluated by enzyme-linked immunosorbent ***:Fuling(Poria) and its extracts did not change the body weight,rectal temperature,and organ coefficients of the spleen and ***,it reduced the levels of MTL and GAS and increased the levels of IL-2 and *** addition,the levels of IL-4 and 5-HT showed no significant ***:These results suggested the crucial function of Fuling(Poria) in SDSP,especially promoting digestive function and water metabolism.

关键词： Fuling(Poria) extracts spleen deficiency symptom pattern motilin gastrins interleukins aquaporin 2 serotonin

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Clinical Significance of Lymph Node Sampling in Endometrial Carcinoma

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Chinese Journal of Clinical Oncology 2007年第3期4卷 179-184页

作者： Ping Bai Min cheng Shumin Li wenhua Zhang Ying Ma Department of Gynecological Oncology Cancer Hospital Peking Union Medical College Chinese Academy of Medical Science Beijing 100021 China

OBJECTIVE To study the clinical significance of pelvic and para-aortic lymph node sampling in endometrial *** Data were analyzed from 311 patients who received surgical treatment in our hospital during the period from January 1995 to December *** the patients,197 underwent lymph node sampling or *** patients were divided into 2 groups based on the nature of their lymph node dissection,i.e.a)The sampling group included 114 patients with an extrafascial hysterectomy or modified radical hysterectomy plus pelvic or paraaortic lymph node sampling of the abdominal aorta;b)The dis-section group,included 83 patients with a radical or modified radical hyster-ectomy plus systemic pelvic lymph node clearance or paraaortic lymph node dissection of the abdominal *** The median of the sampling sites for lymph node removal was 5 in the sampling group,and the median of the lymph nodes removed was 15 per *** node metastasis was found in 8 *** the dissection group,the median of the cases for lymph node removal was 8,and the me-dian of the lymph nodes removed was 27 per *** node metastasis was found in 6 *** 5-year survival rates were 90.2% and 90.9% in the 2 groups,*** Lymph node sampling of endometrial cancer is a good way of precisely finding lymphatic metastases,and is suitable for surgical staging without causing immoderate surgical treatment and without affecting the survival rate.

关键词： endometrial carcinoma lymph node sampling lymphadenectomy.

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茯苓对大鼠肾源性水肿的影响

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湖北工业大学学报 2024年第4期39卷 31-36页

作者：刘凯文冯敏程文华孙凡中张军林湖北工业大学生物工程与食品学院湖北武汉430068 武汉生物工程学院应用生物技术研究中心湖北武汉430415 湖北省疾病预防控制中心应用毒理湖北省重点实验室湖北武汉430070

为研究茯苓对大鼠肾源性水肿的影响,探讨茯苓治疗肾源性水肿的可能机制,将150只SD级大鼠随机分为对照组(12只)和模型组(138只),使用阿霉素对模型组大鼠建立肾源性水肿模型。随机将肾源性水肿模型组大鼠分为非给药模型组,茯苓粉(生、熟... 详细信息

为研究茯苓对大鼠肾源性水肿的影响,探讨茯苓治疗肾源性水肿的可能机制,将150只SD级大鼠随机分为对照组(12只)和模型组(138只),使用阿霉素对模型组大鼠建立肾源性水肿模型。随机将肾源性水肿模型组大鼠分为非给药模型组,茯苓粉(生、熟、代培)低、高剂量组,茯苓醇提物低、中、高剂量组,茯苓水提物低、中、高剂量组。每组8只,雌雄各半,连续21 d灌胃给药。第0,7,14,21天记录体重变化,第21天取血,通过Elisa实验检测大鼠血清IL-2、IL-6、ANP及BNP水平。结果发现,茯苓粉(生、熟、代培)对于水肿程度的缓解(体重)和尿蛋白的降低表现出一定作用。茯苓醇提物对于肾源性水肿大鼠血清ANP、IL-6的降低效果最为显著,5种茯苓样品都可以降低肾源性水肿大鼠血清BNP、IL-2的水平。茯苓可以缓解大鼠肾源性水肿,并降低大鼠血清ANP、BNP、IL-2、IL-6的水平,其中高剂量的熟茯苓对肾源性水肿大鼠尿蛋白缓解效果最好,茯苓醇提物对于肾源性水肿大鼠血清ANP、IL-6的降低效果最为显著,说明茯苓对肾源性水肿的治疗具有一定的积极作用。

关键词：茯苓肾源性水肿白介素利钠肽

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Temperature,pressure,and humidity SAW sensor based on coplanar integrated LGS

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Microsystems & Nanoengineering 2023年第5期9卷 87-99页

作者： Xiaorui Liang Lei Zhang Qiulin Tan wenhua cheng Dan Hu Shuang Li Lin Jing Jijun Xiong State Key Laboratory of Dynamic Measurement Technology North University of ChinaTaiyuan 030051China Key Laboratory of Micro/nano Devices and Systems Ministry of EducationNorth University of ChinaTai Yuan 030051China School of Materials Science and Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore

This paper presents a surface acoustic wave(SAW)sensor based on coplanar integrated Langasite(LGS)that is fabricated using wet etching,high-temperature bonding,and ion beam etching(IBE)*** miniaturized multiparameter temperature‒pressure-humidity(TPH)sensor used the MXene@MoS2@Go(MMG)composite to widen the humidity detection range and improve the humidity sensitivity,including a fast response time(3.18 s)and recovery time(0.94 s).The TPH sensor was shown to operate steadily between 25–700°C,0–700 kPa,and 10–98%*** issues among multiple parameters in complex environments were addressed by decoupling theΔf-temperature coupling factor to improve the ***,this work can be applied to simultaneous measurements of several environmental parameters in challenging conditions.

关键词： LGS humidity sensor

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Flow variation and circulation process of saline springs in the Nangqen Basin， Tibetan Plateau

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Journal of Earth Science 2024年

作者： Jibin Han Jianping Wang Hongkui Ma Yongshou Li Zhao An Yong Xiao wenhua Han Huaide cheng Haizhou Ma Hongchen Jiang Key Laboratory of Green and High-end Utilization of Salt Lake Resources， Qinghai Institute of Salt Lakes， Chinese Academy of Sciences Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes， Qinghai Institute of Salt Lakes， Chinese Academy of Sciences Qinghai Geological Survey Faculty of Geosciences and Engineering， Southwest Jiaotong University State Key Laboratory of Biogeology and Environmental Geology， China University of Geosciences

There was limited knowledge about the flow fluctuations and cycling processes of saline springs in the Nangqen Basin in the Sanjiang tectonic zone. In this work， the flow variation of the saline springs during the wet and dry seasons were monitored using volumetric and cross-sectional methods， and the cycling process of the saline springs was quantitatively identified using the integrated hydrochemical and isotopic methods. The results show that most saline springs in the Nangqen Basin had significantly different flow rates， ion concentrations， and TDS concentrations. The ions mainly come from carbonate and sulfate minerals. There is no internal hydraulic connection between these saline springs， and the impact of seasonal changes on the flow is relatively small， indicating that the saline springs originate mainly from deep circulation. The recharge elevation of the saline springs ranges 3661–4990 m， with an average of 4100 m. The circulation depth of the saline springs ranges 240–570 m， with an average of 431 m. The recycle time ranges 1.15–30.86 years， with an average of 15.66 years. These results could provide a scientific basis for the development and utilization of saline spring resources in the Nangqen Basin.

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空间机械臂连杆——关节质量比和惯量比影响分析

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兵器装备工程学报 2020年第1期41卷 136-139页

作者：程文华李智航天工程大学北京101416

以平面肘型机械臂为例,利用几何关系将质量比和惯量比转化为连杆与关节的密度比,并搭建了以密度比为参变量的动力学模型,利用该模型分析了不同密度比下系统的动态响应,确定了系统稳定状态对应的质量比和惯量比区间,为空间机械臂设计过... 详细信息

以平面肘型机械臂为例,利用几何关系将质量比和惯量比转化为连杆与关节的密度比,并搭建了以密度比为参变量的动力学模型,利用该模型分析了不同密度比下系统的动态响应,确定了系统稳定状态对应的质量比和惯量比区间,为空间机械臂设计过程中的质量分配和构型设计提供依据。

关键词：空间机械臂质量比动力学系统动态响应性能指标

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