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Nano-Micro Letters 2025年第2期17卷 376-386页

作者： Wei-min.qin Zhongliang Li Wen‑Xia Su Jia‑min Hu Hanqin Zou Zhixuan Wu Zhiqin Ruan Yue‑Peng Cai Kang Li Qifeng Zheng School of Chemistry South China Normal UniversityGuangzhou 510006People’s Republic of China Key Laboratory of Functional Metal‑Organic Compounds of Hunan Province College of Chemistry and Material ScienceHengyang Normal UniversityHengyang 421008People’s Republic of China Guangzhou Key Laboratory of Energy Conversion and Energy Storage Materials Guangzhou 510006People’s Republic of China

Porous organic cages(POCs)with permanent porosity and excellent host–guest property hold great potentials in regulating ion transport behavior,yet their feasibility as solid-state electrolytes has never been testified in a practical ***,we design and fabricate a quasi-solid-state electrolyte(QSSE)based on a POC to enable the stable operation of Li-metal batteries(LMBs).Benefiting from the ordered channels and cavity-induced anion-trapping effect of POC,the resulting POC-based QSSE exhibits a high Li+transference number of 0.67 and a high ionic conductivity of 1.25×10^(−4) S cm^(−1) with a low activation energy of 0.17 *** allow for homogeneous Li deposition and highly reversible Li plating/stripping for over 2000 *** a proof of concept,the LMB assembled with POC-based QSSE demonstrates extremely stable cycling performance with 85%capacity retention after 1000 ***,our work demonstrates the practical applicability of POC as SSEs for LMBs and could be extended to other energy-storage systems,such as Na and K batteries.

关键词： Porous organic cage Cavity-induced anion-trapping Quasi-solid-state electrolyte Homogeneous Li+flux Lithium metal battery

Zircon U-Pb age, Lu-Hf Isotopic Characteristics and Origin of the Banshanping Granitoid Rocks in East qinling Orogenic Belt

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Acta Geologica Sinica(English Edition) 2014年第3期88卷 766-779页

作者： LI mingze WU Cailai lei min.qin haipeng LIU Chunhua Institute of Geology Chinese Academy of Geological sciences

The Banshanping granitoid rocks distribute in the east of the North qinling orogenic *** is a diorite-quartz diorite-granodiorite-granite series,spreading in a NW-SE direction,and intrudes into the Erlangping *** SiO2 content ranges from 57.04% to 76.56%,Na2O from 2.05% to 4.65%,K2O from 0.84% to 3.40%.Major element characteristics indicate that Banshanping granitoid rocks have properties of I type *** ranges from 36.51 ppm to 473.25 ppm,and LREE/ HREE ratios lie between 3.95 and *** Eu anomalies are not obvious in most samples,though there are obvious Nb,P and Ti positive *** zircon LA-ICP-MS ages of Banshangping granitoid rocks are 496.0±8.1 Ma-486.9±9.3 *** isotope shows that 176Hf/177Hf ratios range from 0.282721 to 0.282876,εHf（t） values from 8.5 to 14,all positive,and corresponding modal ages （TDM2） range from 559 Ma to 908 *** on Hf isotope characteristics and existing SmNd and Rb-Sr isotope data,we consider that the Banshanping granitoid rocks originate from mantlederived material,*** igneous rocks that formed in Neoproterozoic,and there may be a certain amount of crust-derived material during the formation of Banshanping granitoid rocks.

关键词： Banshanping granitoid rocks Zircon U-Pb chronology Lu-Hf isotope characteristics,material origin

Bifunctional bridging capping layer enables 24.5% efficiency of perovskite solar cells with polymer-based hole transport materials

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Science China Chemistry 2025年第1期 350-359页

作者： Can Zhu Yiyang Wang lei Meng Beibei Qiu Jing Li Shucheng qin Ke Hu Xin Jiang Wenbin Lai minchao Liu Zhe Liu Chenxing Lu Jinyuan Zhang Yongfang Li Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences School of Chemical Science University of Chinese Academy of Sciences Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province College of Physics and Electronic Information Engineering Zhejiang Normal University Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of Sciences Laboratory of Advanced Optoelectronic Materials College of Chemistry Chemical Engineering and Materials ScienceSoochow University

Developing a bridge capping layer between perovskite and hole transport layer materials（HTMs） in the n-i-p perovskite solar cells（pero-SCs） is an effective approach to modify the morphology of HTMs and passivate the perovskite ***, we select the quinoxaline-based bifunctional passivation agent, quinoxalin-6-yl-methylamine hydrochloride（Qx MACl）,as the bridging layer, and a D-A copolymer PBQ12 containing the same quinoxaline unit as an HTM for the n-i-p pero-SCs. Due to the π-π stacking among the common quinoxaline units in the bridge layer and HTM, Qx MACl induces the π-π stacking of the PBQ12 film and improves the film morphology of HTMs with better conductivity. Additionally, Qx MACl can effectively passivate the perovskite surface, and PBQ12 possesses appropriate energy levels and high hole mobility. The pero-SCs based on FAPbI3with PBQ12/Qx MACl treatment showed a higher power conversion efficiency（PCE） of 24.05% and outstanding stability, maintaining 95.4% and 92.1% of its initial PCE after 750 h of storage and after over 800 h of thermal annealing at 85 °C, respectively. To further enhance the PCE of the PBQ12/Qx MACl-based devices, we developed a non-metal ion dopant for the PBQ12 HTM. Through trace doping of PBQ12 HTM by the non-metal ion dopant, the PCE of the PBQ12/Qx MACl-based devices reached 25.24%（the calibrated PCE of 24.55% by the National Institute of Metrology, China）.

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An interface shear damage model of chromium coating/steel substrate under thermal erosion load

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Defence Technology（防务技术） 2021年第2期17卷 405-415页

作者： Xiao-long Li Yong Zang Yong Lian min-yu Ma lei Mu qin qin School of Mechanical Engineering University of Science and Technology BeijingBeijing100083China Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing100083China Beijing Key Laboratory for Corrosion Erosion and Surface TechnologyBeijing100083China

The Cr-plated coating inside a gun barrel can effectively improve the barrel’s erosion resistance and thus increase the service ***,due to the cyclic thermal load caused by high-temperature gunpowder,micro-element damage tends to occur within the Cr coating/steel substrate interface,leading to a gradual deterioration in macro-mechanical properties for the material in the related *** order to mimic this cyclic thermal load and,thereby,study the thermal erosion behavior of the Cr coating on the barrel’s inner wall,a laser emitter is utilized in the current *** the help of in-situ tensile test and finite element simulation results,a shear stress distribution law of the Cr coating/steel substrate and a change law of the interface ultimate shear strength are *** have shown that the Cr coating/steel substrate interface’s ultimate shear strength has a significant weakening effect due to increasing *** this study,the interfacial ultimate shear strength decreases from 2.57 GPa(no erosion)to 1.02 GPa(laser power is 160 W).The data from this experiment is employed to establish a Cr coating/steel substrate interface shear damage *** this model is used to predict the flaking process of Cr coating by finite element *** simulation results show that the increase of coating crack spacing and coating thickness will increase the service life of gun barrel.

关键词： Cr coating/steel substrate Thermal erosion Finite element simulation Ultimate shear strength Interface shear damage model

毛竹PheTCP19b基因可变剪接体对芽发育的影响

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农业生物技术学报 2025年第1期33卷 43-54页

作者：郝琴申孜闫小玲周敏舒郭小勤浙江农林大学竹子研究院/省部共建亚热带森林培育国家重点实验室

可变剪接(alternative splicing, AS)是一种转录后的修饰过程，在生物体各种生理过程中发挥重要作用。TCP是一种植物特有的转录因子，参与植物多种生长发育调控过程。为深入探究毛竹(Phyllostachys edulis) TCP19b基因可变剪接体的表达... 详细信息

可变剪接(alternative splicing, AS)是一种转录后的修饰过程，在生物体各种生理过程中发挥重要作用。TCP是一种植物特有的转录因子，参与植物多种生长发育调控过程。为深入探究毛竹(Phyllostachys edulis) TCP19b基因可变剪接体的表达特性及生物学功能，本研究采用RT-PCR技术克隆了毛竹TCP19b基因全长CDS，采用qRT-PCR技术和GUS组织染色分析了可变剪接体的表达量及表达部位，通过亚细胞定位及遗传转化分析了可变剪接体编码蛋白的定位及生物学功能。结果显示，毛竹PheTCP19b基因发生了可变剪接，产生了2种可变剪接体PheTCP19bα和PheTCP19bβ，分别编码346和382个氨基酸，2种可变剪接体都包含保守的bHLH结构域。PheTCP19b与水稻(Oryza sativa) OsTCP19亲缘关系最近。2个可变剪接体的组织特异性表达模式存在一定差异，PheTCP19bα的组织特异性强，而PheTCP19bβ表现出组成型表达特性，油菜素内酯(brassinolide, BR)可诱导2个可变剪接体的表达。2个可变剪接体蛋白均富集在细胞核。PheTCP19bα和PheTCP19bβ均可以将拟南芥(Arabidopsis thaliana) brc1突变体多分枝表型回补到野生型表型。本研究为进一步探讨PheTCP19b基因不同剪接体在芽发育过程中的分子机制提供了基础资料。

关键词：毛竹 TCP转录因子可变剪接(AS) 芽发育油菜素内酯(BR)

Two-dimensional finite element modeling of seepage-erosion coupled process within unsaturated soil slopes

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Journal of Mountain Science 2022年第2期19卷 446-460页

作者： lei Xiao-qin Key Laboratory of Mountain Hazards and Surface Process Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China Center for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of SciencesBeijing 100101China State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengduSichuan 610059China

Fines migration along with rainfall infiltration is a possible cause of failures of slopes composed of loose *** investigate the intrinsic mechanisms,a rigid mathematical model which can fully capture the multi-phasic and multiphysical process is *** this research,the macro and micro physical phenomena of fines migration process within deposited soil slopes under rainfall infiltration were *** on the mixture theory,a seepage-erosion model for unsaturated erodible soils capable to capture these phenomena mathematically was built based on a rigid theoretical *** model was used to simulate a set of rainfall flume tests involving fines migration phenomena with the finite element *** distinct slope failure modes observed experimentally,which were induced by the soil erosion-deposition properties,can be well reproduced by our numerical *** seepage-erosion coupled process during the rainfall infiltration,as well as the intrinsic mechanism responsible for the slope failures,was illustrated in detail based on the numerical *** was shown that the fines migration process can affect the hydro-mechanical response within unsaturated slopes significantly,and therefore special attention should be paid to those soil slopes susceptible to internal erosion.

关键词： Internal erosion Fines migration Rainfall infiltration Slope stability Finite element method

CONFIDENCE INTERVALS FOR NONPARAMETRIC REGRESSION FUNCTIONS WITH MISSING DATA： MULTIPLE DESIGN CASE

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Journal of Systems Science & Complexity 2011年第6期24卷 1204-1217页

作者： qingzhu lei Yongsong qin School of Mathematical Sciences Guangxi Normal University Guilin 541004 China

This paper considers two estimators of θ= g（x） in a nonparametric regression model Y = g（x）＋ ε（x∈ （0, 1）p） with missing responses： Imputation and inverse probability weighted esti- mators. Asymptotic normality of the two estimators is established, which is used to construct normal approximation based confidence intervals on θ.

关键词： Confidence interval missing at random nonparametric regression normal approximation.

Empirical Likelihood for Partially Linear Models Under Negatively Associated Errors

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Journal of Systems Science & Complexity 2016年第4期29卷 1145-1159页

作者： lei qingzhu qin Yongsong Department of Mathematics Guangxi Normal University

This paper proposes to use the blockwise empirical likelihood （EL） method to construct the confidence regions for the regression vector β in a partially linear model under negatively associated errors. It is shown that the blockwise EL ratio statistic for β is asymptotically χ^2 distributed. The result is used to obtain an EL-based confidence region for β. Results of a simulation study on the finite sample performance of the proposed confidence regions are reported.

关键词： Blockwise empirical likelihood confidence region negatively associated error partially linear model.

中国儿童青少年遗尿症患病率及影响因素的Meta分析

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中国全科医学 2025年第6期28卷 763-770,776页

作者：刘芹程敏江凤琼李小玉川北医学院护理学院四川省南充市637000 电子科技大学医学院附属绵阳医院绵阳市中心医院四川省绵阳市621000

背景遗尿症是儿科常见疾病之一,近年来,遗尿症对儿童青少年身心健康造成了极大的威胁,严重影响患儿的生活质量,给社会和家庭带来严重的负担。目前,关于儿童青少年遗尿症的影响因素还存在争议,且国内外鲜见相关的系统评价。目的利用Meta... 详细信息

背景遗尿症是儿科常见疾病之一,近年来,遗尿症对儿童青少年身心健康造成了极大的威胁,严重影响患儿的生活质量,给社会和家庭带来严重的负担。目前,关于儿童青少年遗尿症的影响因素还存在争议,且国内外鲜见相关的系统评价。目的利用Meta分析探讨国内儿童青少年遗尿症的患病率和影响因素。方法计算机检索中国知网(CNKI)、万方数据知识服务平台(Wanfang Data)、维普网(VIP)、中国生物医学文献服务系统(SinoMed)、PubMed、Embase、Web of Science、Cochrane Library数据库中的相关研究,检索时间从建库至2024年5月。由2名研究者独立筛选并交叉核对,横断面研究采用美国医疗保健研究与质量机构进行评估,采用Stata17.0软件进行Meta分析。结果共纳入27篇文献,包括243530例患儿。Meta分析结果显示,中国儿童青少年遗尿症患病率为6.1%(95%CI=5.1%~7.2%),其中,男性(OR=1.52,95%CI=1.41~1.64)、遗尿症家族史(OR=3.46,95%CI=2.01~5.93)、便秘(OR=2.32,95%CI=1.59~3.40)、尿路感染史(OR=2.33,95%CI=1.81~3.01)、睡眠障碍(OR=2.01,95%CI=1.10~3.67)、尿频(OR=1.90,95%CI=1.43~2.52)、尿急(OR=1.67,95%CI=1.31~2.12)、尿失禁(OR=4.85,95%CI=2.78~8.45)是儿童青少年遗尿症的危险因素(P<0.05);排尿训练(OR=0.11,95%CI=0.02~0.46)是儿童青少年遗尿症的保护因素(P<0.05)。结论中国儿童青少年遗尿症患病率较高,性别、遗尿症家族史、便秘、尿路感染史、排尿训练、睡眠障碍、尿频、尿急、尿失禁是儿童青少年遗尿症的主要影响因素。因此,未来应对儿童青少年遗尿症进行早期识别和干预,提高家长对遗尿症的重视,做好疾病宣教普及,减少遗尿症患病率,提高患儿及家庭生活质量。

关键词：遗尿遗尿症儿童青少年患病率影响因素 Meta分析

Study on performance degradation and failure analysis of machine gun barrel

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Defence Technology（防务技术） 2020年第2期16卷 362-373页

作者： Xiaolong Li lei Mu Yong Zang qin qin School of Mechanical Engineering University of Science and Technology BeijingBeijing100083China

An increase in the use of the gun barrel will cause wear of the inner wall,which reduces the muzzle velocity and the spin rate of the *** off-bore flight attitude and trajectory of the projectile also change,affecting the shooting power and the *** ballistic data of a high-speed spinning projectile are required to study the performance ***,based on the barrel’s accelerated life test,the whole process of projectile shooting is reproduced using numerical simulation technology,and key information on the ballistic performance change at each shooting stage are *** have shown that in the later stages of barrel shooting,the accuracy of shooting has not decreased ***,it is found that the angle of attack of the projectile increases as the wear of the barrel *** maximum angle of attack reaches 0.106 rad when the number of shots reaches ***,elliptical bullet hole has appeared on the target at this shooting *** combining external ballistic theory with simulation results,the primary reason of this phenomenon is found to be a significant decrease in the muzzle spin rate of the *** the end of the barrel life,the projectile muzzle spin rate is 57.5%lower than that of a barrel without wear.

关键词： Wear of the inner wall Accelerated life test Numerical simulation Ballistic performance End of the barrel life