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Thermodynamics-directed bulk/grain-boundary engineering for superior electrochemical durability of Ni-rich cathode

Journal of Energy Chemistry 2024年第10期97卷 321-331,I0006页

作者： Kangyu Zou mingzhu jiang Tianxiang Ning Lei Tan Junchao Zheng Jiexi Wang Xiaobo Ji Lingjun Li School of Materials Science and Engineering Changsha University of Science and TechnologyChangsha 410114HunanChina Cllege of Chemistry and Chemical Engineering Central South UniversityChangsha 410083HunanChina School of Metallurgy and Environment Central South UniversityChangsha 410083HunanChina National Engineering Research Centre of Advanced Energy Storage Materials Changsha 410205HunanChina

Introducing high-valence Ta element is an essential strategy for addressing the structu ral deterioration of the Ni-rich LiNi_(1-x-y)Co_(x)Mn_(y)O_(2)(NCM)cathode,but the enlarged Li/Ni cation mixing leads to the inferior rate capability originating from the hindered Li~+*** that the non-magnetic Ti~(4+)ion can suppress Li/Ni disorder by removing the magnetic frustration in the transition metal ***,it is still challenging to directionally design expected Ta/Ti dual-modification,resulting from the complexity of the elemental distribution and the uncertainty of in-situ formed coating compounds by introducing foreign ***,a LiTaO_3 grain boundary(GB)coating and bulk Ti-doping have been successfully achieved in LiNi_(0.834)Co_(0.11)Mn_(0.056)O_(2) cathode by thermodynamic guidance,in which the structural formation energy and interfacial binding energy are employed to predict the elemental diffusion discrepancy and thermodynamically stable coating *** to the coupling effect of strengthened structural/interfacial stability and improved Li~+diffusion kinetics by simultaneous bulk/GB engineering,the Ta/Ti-NCM cathode exhibits outstanding capacity retention,reaching 91.1%after 400 cycles at 1 *** elaborate work contributes valuable insights into rational dual-modification engineering from a thermodynamic perspective for maximizing the electrochemical performances of NCM cathodes.

关键词： Ni-rich layered cathode Dual-modification Grain boundary coating Bulk doping Thermodynamic perspective

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Electrically triggered dual-band tunable terahertz metamaterial band-pass filter based on Si_3N_4–VO_2–Si_3N_4 sandwich

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Chinese Physics B 2019年第5期28卷 111-116页

作者： Shuai Zhao Fangrong Hu Xinlong Xu mingzhu jiang Wentao Zhang Shan Yin Wenying jiang Guangxi Key Laboratory of Optoelectronic Information Processing Guilin University of Electronic Technology Nanobiophotonic Center State Key Laboratory Incubation Base of Photoelectric Technology and Functional Materials and Institute of Photonics &Photon-Technology Northwest University

We experimentally demonstrate an electrically triggered terahertz(THz) dual-band tunable band-pass filter based on Si_3 N_4–VO_2–Si_3 N_4 sandwich-structured hybrid metamaterials. The insulator–metal phase transition of VO_2 film is induced by the Joule thermal effect of the top metal layer. The finite-integration-time-domain(FITD) method and finite element method(FEM) are used for numerical simulations. The sample is fabricated using a surface micromachining process,and characterized by a THz time-domain-spectrometer(TDS). When the bias current is 0.225 A, the intensity modulation depths at two central frequencies of 0.56 THz and 0.91 THz are about 81.7% and 81.3%, respectively. This novel design can achieve dynamically electric–thermo–optic modulation in the THz region, and has potential applications in the fields of THz communications, imaging, sensing, and astronomy exploration.

关键词： tunable band-pass filter hybrid metamaterials terahertz vanadium dioxide (VO2)

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Jinyinqingre Oral Liquid alleviates LPS-induced acute lung injury by inhibiting the NF-κB/NLRP3/GSDMD pathway

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Chinese Journal of Natural Medicines 2023年第6期21卷 423-435页

作者： WANG Shuhui LEI Pan FENG Ying jiang mingzhu LIU Zegan SHEN Ting MA Shinan WANG Libo GUO Xingrong DU Shiming 无 School of Pharmaceutical Sciences Hubei Key Laboratory of Wudang Local Chinese Medicine ResearchTaihe HospitalHubei University of MedicineShiyan 442000China Department of Neurosurgery Hubei Key Laboratory of Embryonic Stem Cell ResearchTaihe HospitalHubei University of MedicineShiyan 442000China Hubei provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells Taihe HospitalHubei University of MedicineShiyan 442000HubeiChina Hubei Hongshan Laboratory College of Biomedicine and HealthHuazhong Agricultural UniversityWuhan 430070China

Acute lung injury(ALI)is a prevalent and severe clinical condition characterized by inflammatory damage to the lung endothelial and epithelial barriers,resulting in high incidence and mortality ***,there is a lack of safe and effective drugs for the treatment of *** a previous clinical study,we observed that Jinyinqingre oral liquid(JYQR),a Traditional Chinese Medicine formulation prepared by the Taihe Hospital,Affiliated Hospital of Hubei University of Medicine,exhibited notable efficacy in treating inflammation-related hepatitis and cholecystitis in clinical ***,the potential role of JYQR in ALI/acute respiratory distress syndrome(ARDS)and its anti-inflammatory mechanism remains ***,the present study aimed to investigate the therapeutic effects and underlying molecular mechanisms of JYQR in ALI using a mouse model of lipopolysaccharide(LPS)-induced ALI and an in vitro RAW264.7 cell *** yielded substantial improvements in LPS-induced histological alterations in lung ***,JYQR administration led to a noteworthy reduction in total protein levels within the BALF,a decrease in MPAP,and attenuation of pleural *** findings collectively highlight the remarkable efficacy of JYQR in mitigating the deleterious effects of LPS-induced *** investigations revealed that JYQR pretreatment significantly inhibited NF-κB activation and downregulated the expressions of the downstream proteins,namely NLRP3 and GSDMD,as well as proinflammatory cytokine levels in mice and RAW2647 ***,JYQR alleviated LPS-induced ALI by inhibiting the NF-κB/NLRP3/GSDMD *** exerts a protective effect against LPS-induced ALI in mice,and its mechanism of action involves the downregulation of the NF-κB/NLRP3/GSDMD inflammatory pathway.

关键词： Jinyinqingre oral liquid Acute lung injury Lipopolysaccharide Inflammation NF-κB/NLRP3/GSDMD pathway

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Switchable terahertz polarization converter based on VO_(2)metamaterial

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Chinese Physics B 2022年第6期31卷 403-409页

作者： Haotian Du mingzhu jiang Lizhen Zeng Longhui Zhang Weilin Xu Xiaowen Zhang Fangrong Hu Guangxi Key Laboratory of Automatic Detecting Technology and Instrument Guilin University of Electronic TechnologyGuilin 541004China Guilin Institute of Information Technology Guilin 541004China

A switchable terahertz(THz)polarization converter based on vanadium dioxide(VO_(2)) metamaterial is *** is a 5-layer structure which containing metal split-ring-resonator(SRR),the first polyimide(PI)spacer,VO_(2) film,the second PI spacer,and metal *** is an array structure and the period in x and y directions is 100μ*** performance is simulated by using finite integration *** simulation results show that,when the VO_(2) is in insulating state,the device is a transmission polarization *** cross-linear polarization conversion can be realized in a broadband of0.70 THz,and the polarization conversion rate(PCR)is higher than 99%.Under thermal stimulus,the VO_(2) changes from insulating state to metallic state,and the device is a reflective polarization *** linear-to-circular polarization conversion can be successfully realized in a broadband of 0.50 THz,and the PCR is higher than 88%.

关键词： switchable terahertz(THz)metamaterial polarization conversion vanadium dioxide(VO_(2))

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The coverage and challenges of increasing uptake of non-National Immunization Program vaccines in China:a scoping review

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Infectious Diseases of Poverty 2023年第6期12卷 19-33页

作者： mingzhu jiang Shu Chen Xuanxuan Yan Xiaohua Ying Shenglan Tang School of Public Health Fudan University130 Dong’an RoadXuhui DistrictShanghai 200032China Australian Research Council Centre of Excellence in Population Ageing Research(CEPAR) University of New South WalesSydneyAustralia School of Risk and Actuarial Studies University of New South WalesSydneyAustralia Global Health Research Center Duke Kunshan UniversityKunshanJiangsuChina SingHealth Duke-NUS Global Health Institute Duke-NUSSingaporeSingapore Duke Global Health Institute Duke UniversityDurhamUSA

Background Non-National Immunization Program (NIP) vaccines have played an important role in controlling vaccine-preventable diseases (VPDs) in China. However, these vaccines are paid out of pocket and there is room to increase their coverage. We focused on four selected non-NIP vaccines in this study, namely Haemophilus influenzae type b (Hib) vaccine, human papillomavirus (HPV) vaccine, pneumococcal conjugate vaccine (PCV), and rotavirus vaccine. We aimed to conduct a scoping review of their vaccination rates and the major barriers faced by health systems, providers, and caregivers to increase *** We followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR). We searched five English databases (PubMed, Web of Science, EMBASE, Scopus, and WHO IRIS) and four Chinese databases using the search strategy developed by the study team. Two independent reviewers screened, selected studies, and examined their quality. We summarized the non-NIP vaccine coverage data by vaccine and applied the 5A framework (Access, Affordability, Acceptance, Awareness, Activation) to chart and analyze barriers to increasing *** A total of 28 articles were included in the analysis (nine pertaining to vaccine coverage, and another 19 reporting challenges of increasing uptake). Among the four selected vaccines, coverage for the Hib vaccine was the highest (54.9-55.9% for 1 dose or more from two meta-analyses) in 2016, while the coverage of the other three vaccines was lower than 30%. Eight of the nine included articles mentioned the regional disparity of coverage, which was lower in under-developing regions. For example, the three-dose Hib vaccination rate in eastern provinces was 38.1%, whereas the rate in central and western provinces was 34.3% and 26.2%, respectively in 2017. Within the 5A framework, acceptance, awareness, and affordability stood out as the most prominent themes. Among the 12 identified

关键词： Non-National Immunization Program vaccines HPV Hib PCV Rotavirus Coverage Uptake Barriers Challenges

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校本培训模式实践初探

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全球教育展望 2006年第7期35卷 78-80页

作者：蒋明珠上海嘉定区新成路小学校长上海201822

校本培训因其曰标的指向性、组织的亲融性、内容的针对性、费用的经济性和模式的灵活性于20世纪90年代末在我国引发了研究、实践的热潮。新成路小学挖掘内部资源,发挥校本培训的优势,根据不同培训内容、针对培训对象的差异,灵活运用各... 详细信息

校本培训因其曰标的指向性、组织的亲融性、内容的针对性、费用的经济性和模式的灵活性于20世纪90年代末在我国引发了研究、实践的热潮。新成路小学挖掘内部资源,发挥校本培训的优势,根据不同培训内容、针对培训对象的差异,灵活运用各类校本培训模式,并在实践中反思失败原因、总结成功经验,开发、发展校本培训模式。

关键词：校本培训培训模式培训目标新成路小学培训内容

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皂荚籽填料曝气生物滤池处理氨氮废水研究

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水处理技术 2018年第6期44卷 90-93页

作者：丁绍兰姜明珠陕西科技大学环境科学与工程学院陕西西安710021

选取具有特殊形状和组成的天然皂荚籽作为曝气生物滤池(BAF)的填料和固体碳源处理NH_3-N废水,研究皂荚籽作为释碳填料的性能,以皂荚籽、体积比为1:2的皂荚籽-陶粒混合填料分别搭建BAF,在不添加外加碳源条件下处理低C/N低含量NH_3-N模拟... 详细信息

选取具有特殊形状和组成的天然皂荚籽作为曝气生物滤池(BAF)的填料和固体碳源处理NH_3-N废水,研究皂荚籽作为释碳填料的性能,以皂荚籽、体积比为1:2的皂荚籽-陶粒混合填料分别搭建BAF,在不添加外加碳源条件下处理低C/N低含量NH_3-N模拟废水,分别考察2种BAF的挂膜特性以及处理NH_3-N废水的性能。结果表明,皂荚籽作为释碳填料具有良好的外形和尺寸、生物和化学稳定性;静态NH_3-N吸附量较小,难以直接作为吸附材料处理NH_3-N废水;2种BAF在实验期内持续释碳,释碳量可以满足微生物需求;皂荚籽BAF和皂荚籽-陶粒BAF的NH_3-N去除率分别可达50%和93.9%。说明皂荚籽可以作为一种具有利用价值的释碳填料。

关键词：曝气生物滤池低C/N NH3-N 皂荚籽

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基层医院两种术式治疗肝胆管结石的临床研究

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中国社区医师 2016年第26期32卷 25-25,27页

作者：江明柱贵州省天柱县人民医院普外科 556600

目的:探讨胆道镜下肝胆管切开取石术与开腹高位胆管切开取石术治疗肝胆管结石的临床治疗效果。方法:收治肝胆管结石患者100例,随机分为两组。对照组给予开腹高位胆管切开取石术治疗,研究组给予胆道镜下肝胆管切开取石术治疗,比较两组临... 详细信息

目的:探讨胆道镜下肝胆管切开取石术与开腹高位胆管切开取石术治疗肝胆管结石的临床治疗效果。方法:收治肝胆管结石患者100例,随机分为两组。对照组给予开腹高位胆管切开取石术治疗,研究组给予胆道镜下肝胆管切开取石术治疗,比较两组临床疗效。结果:研究组结石复发率、结石残余率、并发症发生率均低于对照组,差异均具有统计学意义(P<0.05)。结论:胆道镜下肝胆管切开取石术治疗肝胆管结石的效果较好,可降低结石残余和复发,减少并发症。

关键词：肝胆管结石胆道镜高位胆管

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红薯基活性炭的制备及其电性能表征

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材料科学与工程学报 2018年第2期36卷 198-201,179页

作者：姜明珠高天张桂菊苏州大学物理与光电能源学部江苏苏州215006

以红薯为原料分别采用物理活化(CO2活化)和化学活化(KOH活化)法制备活性炭。研究了不同活化温度和时间所得活性炭的比表面积和孔结构特征,并结合扫描电子显微镜、X射线衍射仪、比表面积分析仪等对其进行测试和表征。结果表明,KOH活化法... 详细信息

以红薯为原料分别采用物理活化(CO2活化)和化学活化(KOH活化)法制备活性炭。研究了不同活化温度和时间所得活性炭的比表面积和孔结构特征,并结合扫描电子显微镜、X射线衍射仪、比表面积分析仪等对其进行测试和表征。结果表明,KOH活化法在碳碱比为1∶3、活化温度为800℃、活化时间为5h时比表面积最高,达到1590m2/g,介孔率为20.3%;CO2活化法在800℃、活化2h时比表面积较高,为1054m2/g,介孔率可达62.0%。将该两组活性炭用作超级电容器电极材料时,以6M KOH作电解质表现出了典型的双电层电容器的特征,在5A/g的电流密度下,两者的比电容量分别为143F/g和187F/g。

关键词： KOH活化 CO2活化红薯淀粉活性炭

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镍基复合薄膜太赫兹宽带吸波体制备

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光学学报 2024年第11期44卷 161-168页

作者：刘泉钧胡放荣张隆辉江明珠苏安桂林电子科技大学电子工程与自动化学院广西桂林541004 河池学院数理学院广西河池546300

实验制备了由镍泡沫、聚二甲基硅氧烷(PDMS)和少层石墨烯组成的镍基复合薄膜(NCF)太赫兹宽带吸波体,采用太赫兹时域光谱仪测试其吸收性能。结果表明,当镍泡沫厚度为0.5 mm、少层石墨烯质量分数为2%时,在0.3~3.5 THz范围内吸收率均高于0... 详细信息

实验制备了由镍泡沫、聚二甲基硅氧烷(PDMS)和少层石墨烯组成的镍基复合薄膜(NCF)太赫兹宽带吸波体,采用太赫兹时域光谱仪测试其吸收性能。结果表明,当镍泡沫厚度为0.5 mm、少层石墨烯质量分数为2%时,在0.3~3.5 THz范围内吸收率均高于0.9,且平均吸收率为0.944。此外,NCF在100℃和200℃的高温下,仍能保持稳定的吸收性能,平均吸收率分别为0.966和0.924。同时,测试了1 mm和1.5 mm NCF压至0.5 mm时的吸收性能,结果表明:NCF的吸收性能略有下降,但吸收率仍然保持在0.8以上;不同厚度的镍泡沫通过掺杂不同质量分数的少层石墨烯,可以增大吸收带宽。运用阻抗匹配理论和多重干涉理论对宽带吸收特性进行解释。这种NCF太赫兹宽带吸波体在太赫兹雷达隐身、宽带无线通信和太赫兹成像等领域具有潜在应用价值。

关键词：材料镍基复合薄膜太赫兹宽带吸波体温度影响压缩影响多重干涉理论

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