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急性ST段抬高型心肌梗死患者冠状动脉病变严重程度影响因素的Logistic回归分析

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内科 2020年第4期15卷 380-382,416页

作者：覃秋语徐彤彤武琦赵位昆朱盼盼桂林医学院附属医院综合科医疗保健病区广西桂林市541001 徐州医科大学生理学教研室江苏省徐州市221004

目的对急性ST段抬高型心肌梗死(STEMI)患者冠状动脉病变严重程度的影响因素进行Logistic回归分析,探讨白细胞计数(WBC)和平均血小板体积(MPV)比值(WMR)与患者冠状动脉狭窄程度的相关性。方法选取2017年12月至2019年5月在桂林医学院附属... 详细信息

目的对急性ST段抬高型心肌梗死(STEMI)患者冠状动脉病变严重程度的影响因素进行Logistic回归分析,探讨白细胞计数(WBC)和平均血小板体积(MPV)比值(WMR)与患者冠状动脉狭窄程度的相关性。方法选取2017年12月至2019年5月在桂林医学院附属医院行PCI术治疗的STEMI患者191例为研究对象,对患者冠脉病变的严重程度进行Gensini评分,根据评分结果将患者分为低分组(63例)、中分组(62例)、高分组(66例),对三组患者的一般情况及实验室检查结果进行比较分析,对影响STEMI患者冠脉病变严重程度的因素进行Logistic回归分析。结果高分组患者的WBC、WMR均明显高于中分组、低分组,差异有统计学意义(P0.05)。Logistic回归分析结果显示,WMR、FIB是STEMI患者冠脉病变严重程度的独立影响因素(P<0.05)。结论WMR及WBC与STEMI患者冠脉病变的严重程度密切相关,是影响STEMI患者冠脉病变严重程度的独立危险因素。

关键词：急性ST段抬高型心肌梗死冠状动脉病变白细胞与平均血小板体积比值

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基于NI数据采集器的动态磁滞回线测量

大学物理实验 2019年第2期32卷 77-80页

作者：朱盼盼胡广兴吴浩宇范庆国姚天阳东北大学物理系辽宁沈阳110819

通过搭建磁滞回线测试系统,结合数据采集卡和Labview软件实现磁滞回线的自动测绘和保存,丰富了实验内容,培养了学生的实际动手能力。

关键词：磁滞回线采集卡 Labview

褐藻寡糖及其锌络合物对暗纹东方鲀消化能力、血清生化指标及肠道菌群的影响

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饲料工业 2023年第4期44卷 85-91页

作者：张梦婷李兆新邢丽红段蕊张俊杰郑旭颖朱盼盼王学江中国水产科学研究院黄海水产研究所山东青岛266071 江苏海洋大学江苏连云港222005 五洲丰农业科技有限公司山东烟台264000

为探究褐藻寡糖及其锌络合物对暗纹东方鲀的生长、血清免疫相关酶活性、消化酶活性及肠道菌群的影响,实验以暗纹东方鲀为研究对象,在饲料中分别添加0.23%褐藻寡糖、0.23%褐藻寡糖锌,挑选270尾规格均一、体表无伤的河豚,随机分3组,每组3... 详细信息

为探究褐藻寡糖及其锌络合物对暗纹东方鲀的生长、血清免疫相关酶活性、消化酶活性及肠道菌群的影响,实验以暗纹东方鲀为研究对象,在饲料中分别添加0.23%褐藻寡糖、0.23%褐藻寡糖锌,挑选270尾规格均一、体表无伤的河豚,随机分3组,每组3个平行养殖桶,每桶30尾,分别投喂无寡糖的饲料、含0.23%褐藻寡糖的饲料、含0.23%褐藻寡糖锌的饲料,完成8周饲养实验。结果显示:褐藻寡糖对暗纹东方鲀起到促生长作用但不显著(P>0.05);相比于对照组,褐藻寡糖组、褐藻寡糖锌组暗纹东方鲀血清溶菌酶活性分别提高201.761、51.235 U/mL,且存在显著差异(P0.05)。饲料中添加褐藻寡糖、褐藻寡糖锌可提高暗纹东方鲀血清溶菌酶活性、肠道消化能力,同时维持暗纹东方鲀肠道的细菌多样性方面起到积极的作用。

关键词：褐藻寡糖褐藻寡糖锌暗纹东方鲀生物学效应肠道菌群 16S RNA

Using waste to treat waste:Red mud induced hierarchical porousγ-AlOOH andγ-Al_(2)O_(3) microspheres as superior Pd support for catalytic reduction of 4-nitrophenol

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Particuology 2023年第2期73卷 59-67页

作者： Yuyu Zheng Jingyi Wang panpan Sun Huimin Xue Liyun Zhang Jinxiu Chen Heng Zhang Wancheng zhu Department of Chemical Engineering Qufu Normal UniversityShandong273165China

Toward the imperative treatment of the industrial wastewater containing 4-nitrophenol(4-NP)and industrial solid waste red mud(RM),an innovative approach of“Using waste to treat waste”is *** element Al is leached from the RM first,the resultant NaAlO_(2) solution is hydrothermally converted toγ-AlOOH hierarchical porous microspheres(RMγ-AlOOH HPMSs,average diameter:2.0μm,SBET:77.81 m^(2) g^(-1),pore volume:0.38 cm^(3) g^(-1))in the presence of *** subsequent mild thermal conversion results inγ-Al_(2)O_(3) hierarchical porous microspheres(RMγ-Al_(2)O_(3) HPMSs).Both of the RMγ-AlOOH and RMγ-Al_(2)O_(3) HPMSs are employed as the Pd catalyst support for the catalytic reduction of ***,the as-obtained composite Pd/RMγ-AlOOH and Pd/RMγ-Al_(2)O_(3) exhibit excellent catalytic activities with superior knor as 8204.5 and 4831.4 s^(-1) g^(-1),respectively,significantly higher than that of most Pd based ***,the excellent catalytic stability and durability of the Pd/RMγ-AlOOH and Pd/RMγ-Al_(2)O_(3) within 10 successive cycles of reduction enable the present industrial solid waste RM inducedγ-AlOOH andγ-Al_(2)O_(3) HPMSs as great promising Pd catalyst support for the reduction of the industrial wastewater containing 4-NP.

关键词： Red mud Waste treatment Hierarchical porous AlOOH Al_(2)O_(3) 4-Nitrophenol

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

云南玉溪柑橘园土壤养分水平和叶片营养状况相关性分析

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果树学报 2019年第12期36卷 1658-1666页

作者：朱攀攀李有芳邱洁雅王敏张超博凌丽俐施云庭胡军华张蓉李永奇资丽玲彭良志西南大学柑桔研究所·国家柑桔工程技术研究中心重庆400712 云南省玉溪市柑桔研究所云南华宁652801

【目的】对云南省玉溪市柑橘土壤养分水平和叶片营养状况及其相关性进行分析,为柑橘的合理施肥提供科学依据。【方法】对玉溪市华宁南盘江河谷区、华宁山地区、元江干热河谷区和新平山地区4个生态区101个柑橘园土壤和叶片样品的10种营... 详细信息

【目的】对云南省玉溪市柑橘土壤养分水平和叶片营养状况及其相关性进行分析,为柑橘的合理施肥提供科学依据。【方法】对玉溪市华宁南盘江河谷区、华宁山地区、元江干热河谷区和新平山地区4个生态区101个柑橘园土壤和叶片样品的10种营养元素进行测定分析。【结果】南盘江河谷区、华宁山地区、元江干热河谷区和新平山地区4个生态区橘园土壤碱解N含量不足(缺乏和低量)的比例分别为77.08%、63.64%、91.67%、80.00%;华宁山地区土壤速效P不足最为严重,达到100%,其余3个生态区土壤速效P主要在适宜水平;4个生态区土壤速效K适宜水平的比例分别达到93.75%、100%、83.33%、96.67%;土壤交换性钙Ca含量以适宜水平为主,但交换性Mg含量以不足水平为主;各生态区土壤速效Fe、Mn、Cu含量丰富(适宜及以上),土壤速效B不足,而元江干热河谷区和新平山地区速效Zn含量主要不足;土壤速效B主要是不足水平。华宁山地区柑橘叶片N、K不足比例较高,分别达到45.45%和36.36%,其余3个生态区的N、P、K均处于丰富水平;叶片Ca含量丰富;元江干热河谷区叶片Mg不足比例66.67%,其余3个生态区叶片Mg均在丰富水平;各生态区叶片Fe、Mn、B含量均丰富;叶片Zn均在不足水平;新平山地区30.00%橘园叶片Cu含量不足。对4个生态区分别进行相关性分析,结果显示南盘江河谷区橘园土壤有效Mn、Zn、Cu、B及新平山地区橘园土壤有效Mg、Mn、Zn与其叶片相应元素含量显著(p<0.05)或极显著(p<0.01)相关,元江干热河谷区橘园土壤有效Mg与叶片Mg含量极显著相关,华宁山地区土壤全部营养元素有效态含量与叶片对应元素含量未达显著正相关水平;整体相关性分析结果则显示,橘园土壤有效Mn、Cu、B与叶片相应元素含量显著或极显著相关。【结论】玉溪不同柑橘生态区土壤与叶片营养元素含量丰缺并存,生产上需重视补充与平衡。整个玉溪产区橘园土壤与叶片营养元素含量相关性规律不强;玉溪橘园测土不能良好反映树体的实际营养状况,需要探索改进测土方法,或结合叶片营养诊断制定施肥方案。

关键词：柑橘玉溪土壤养分叶片营养相关性

How to build good inverters from nanomaterial-based transistors

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Nano Research 2023年第11期16卷 12594-12600页

作者： Pengkun Sun Nan Wei panpan Zhang Yingjun Yang Maguang zhu Huiwen Shi Lian-Mao Peng Zhiyong Zhang Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics School of ElectronicsPeking UniversityBeijing 100871China

As promising components of future integrated circuits(ICs),field-effect transistors(FETs)based on semiconducting nanomaterials are being extensively *** the most essential component of ICs,inverters are favored to be demonstrated at the infant stage of emerging ***,systematic research is absent to reveal how the parameters of transistors affect the performance of inverters,*** voltage transfer characteristics(VTCs).In this work,systematic analysis about the dependency between transistor-and inverter-level metrics have been carried out for both complementary metal-oxide-semiconductor(CMOS)and monotype(p-type-only and n-type-only)technologies,which is further experimentally demonstrated by carbon nanotube FETs and *** also propose guidelines towards the high noise margin and rail-to-rail inverter design based on nanomaterials.

关键词： field-effect transistors inverter voltage transfer characteristics noise margin nanomaterial

Puerarin protects brain tissue against cerebral ischemia/reperfusion injury by inhibiting the inflammatory response

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Neural Regeneration Research 2014年第23期9卷 2074-2080页

作者： Feng Zhou Liang Wang panpan Liu Weiwei Hu Xiangdong zhu Hong Shen Yuanyuan Yao Department of Neurosurgery Second Affiliated Hospital School of Medicine Zhejiang University Medical College Ningbo University Department of Anesthesiology Second Affiliated Hospital School of Medicine Zhejiang University

Puerarin, a traditional Chinese medicine, exerts a powerful neuroprotective effect in cerebral ischemia/reperfusion injury, but its mechanism is unknown. Here, we established rat models of middle cerebral artery ischemia/reperfusion injury using the suture method. Puerarin （100 mg/kg） was administered intraperitoneally 30 minutes before middle cerebral artery occlusion and 8 hours after reperfusion. Twenty-four hours after reperfusion, we found that puerarin significantly improved neurological deficit, reduced infarct size and brain water content, and notably diminished the expression of Toll-like receptor-4, myeloid differentiation factor 88, nuclear factor kappa B and tumor necrosis factor-α in the ischemic region. These data indicate that puerarin exerts an anti-inflammatory protective effect on brain tissue with ischemia/reperfusion damage by downregulating the expression of multiple inflammatory factors.

关键词： nerve regeneration brain injury puerarin cerebral ischemia reperfusion injury rats inflammatory reaction Toll-like receptor-4 nuclear factor kappa B myeloid differentiation factor 88 tumor necrosis factor-α middle cerebral artery occlusion neural regeneration

Research progress on rolling superlubricity in solid lubricants

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Science China(Technological Sciences) 2024年第7期67卷 1980-1990页

作者： LI panpan LI HongXuan zhu DongXiang zhu YongQi KANG FuYan WANG Wan ZHANG YaXin LIU XiaoHong JI Li ZHOU HuiDi CHEN JianMin State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China School of Chemical Engineering Northwest Minzu UniversityLanzhou 730030China

Superlubricity is an ideal lubrication state where friction nearly vanishes between contact interfaces. It has become one of the most important research topics and approaches owing to its significance in reducing energy consumption and preventing device failures. As an efficient and universal lubricating principle capable of achieving superlubricity, rolling lubrication has attracted widespread attention in recent years. In this review, the theoretical concept of rolling lubrication and the experimental research progress of spherical/scroll structures are summarized. The review focuses on the possibility of achieving rolling lubrication using spherical/scroll structures(such as spherical fullerenes, carbon nanotubes, and formed and constructed spherical/scroll structures). The challenges in achieving rolling lubrication are summarized, and the possibility of molecular rolling lubrication,as well as its potential applications in superlubrication, are discussed.

关键词： spherical/scroll structure rolling lubrication superlubricity fullerene