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Cu/Cu2O nanostructures derived from copper oxalate as high performance electrocatalyst for glucose oxidation

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Chinese Chemical Letters 2020年第7期31卷 1941-1945页

作者： guoqiang yuan Shangkui Yu Ji Jie Chen Wang Qing Li Huan Pang Guangling College Yangzhou UniversityYangzhou 225009China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009China

Porous nanomaterials are classified as a kind of materials with great potential for development in the field of electrocatalysis,but there is still room for further improve ment as *** develop a threedimensional(3D)porous structure of Cu/Cu2O as an electrocatalyst for the glucose oxidation reaction(GOR)using the method of calcining the precursor CuC2O4·2H2O in *** obtained porous Cu/Cu2O nanostructure can provide more opportunities for effective reactions between particles,which can explain their efficient electrocatalytic ***,the as-synthesized Cu/Cu2O nanostructure exhibits outstanding electrocatalytic performance for the glucose,including good stability,excellent sensitivity and remarkable selectivity.

关键词： Copper oxalate Cu/Cu2O Electrocatalysis Glucose Porous

A Decorrelation Constant Modulus Algorithm for Multitarget Separation Using Adaptive Arrays

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Wuhan University Journal of Natural Sciences 2007年第6期12卷 1063-1065页

作者： XU Jin ZHU guoqiang yuan Fei School of Electronic Information Wuhan University Wuhan 430072 Hubei China

In this paper, an adaptive digital filter algorithm is presented to optimize the signal-to-noise ratio of an antenna array with multiuser signal inputs. These synchronous communication signals have constant envelope property and are transmitted through a Multiple-Input/Multiple-Output （MIMO） linear channel. This Multiuser Constant Modulus Algorithm （MU-CMA） using an antenna array can compensate for both Interuser Interference （IUI） and Intersymbol Interference （ISI）. The method is derived by minimizing the cost function of the constant modulus signals as well as cross-correlations between them. The simulation result in this paper shows the performance of this algorithm.

关键词： constant modulus multitarget adaptive array

GRAIN LENGTH AND AWN 1 negatively regulates grain size in rice

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Journal of Integrative Plant Biology 2019年第10期61卷 1036-1042页

作者： Tao Wang Ting Zou Zhiyuan He guoqiang yuan Tao Luo Jun Zhu Yueyang Liang Qiming Deng Shiquan Wang Aiping Zheng Huainian Liu Lingxia Wang Ping Li Shuangcheng Li State Key Laboratory of Hybrid Rice Sichuan Agricultural University Chengdu 611130 China Rice Research Institute Sichuan Agricultural University 211 Huimin Road Wenjiang 611130 China Rice Research Institute Southwest University of Science and Technology Mianyang 621010 China State Key Laboratory of Hybrid Rice Hunan Hybrid Rice Research Center Changsha 410125 China

Grain size is an important factor determining yield in rice. Here, we identified a recessive mutant gene, grain length and awn 1 (gla1), which caused a significant increase in grain length and weight, and was associated with long awns. The gla1 mutation was mapped to a single-nucleotide polymorphism in a gene encoding a cytoplasmically-localized mitogen-activated protein kinase (MAPK) phosphatase. Overexpression of GLA1 caused a decrease in grain length, and the GLA1 protein interacted with OsMAPK6. These results suggest that GLA1 may serve as a negative regulator of the OsMAPKK4-OsMAPK6 cascade, controlling grain size via the dephosphorylation of OsMAPK6.

关键词： GRAIN LENGTH grain size

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两阶段模糊生产计划期望值模型

应用数学学报 2009年第4期32卷 648-663页

作者：袁国强河北金融学院基础部保定071051

在现实的生产系统中,生产计划问题常常是一个确定的线性规划问题。但是,在许多的实际情况中,由于生产系统中不确定性因素的影响,带有常系数的线性规划模型不能合理地描述现实的决策环境。为了准确有效地描述生产决策环境,本文提出一类... 详细信息

在现实的生产系统中,生产计划问题常常是一个确定的线性规划问题。但是,在许多的实际情况中,由于生产系统中不确定性因素的影响,带有常系数的线性规划模型不能合理地描述现实的决策环境。为了准确有效地描述生产决策环境,本文提出一类新的带有模糊参数的两阶段生产计划期望值模型并且讨论模型的一些基本性质。然后,讨论补偿函数的逼近并且设计一个基于逼近方法、神经网络和遗传算法的启发式算法来求解这个两阶段模糊生产计划模型。最后,给出一个数值例子来表明所设计算法的可行性和有效性。

关键词：生产计划可信性理论两阶段模糊优化逼近方法遗传算法

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二维稳定流形的自适应推进算法

力学学报 2018年第2期50卷 405-414页

作者：袁国强李颖晖空军工程大学航空航天工程学院西安710038

稳定和不稳定流形是研究动力系统全局特性的重要工具.一般系统的稳定和不稳定流形的曲率在全局范围内会有明显变化,应根据流形曲率的变化采用不同尺寸的网格单元计算全局流形.然而在现有二维流形算法中,流形网格单元的尺寸在全局范围内... 详细信息

稳定和不稳定流形是研究动力系统全局特性的重要工具.一般系统的稳定和不稳定流形的曲率在全局范围内会有明显变化,应根据流形曲率的变化采用不同尺寸的网格单元计算全局流形.然而在现有二维流形算法中,流形网格单元的尺寸在全局范围内是统一的.为持续有效地计算全局稳定流形,提高计算网格对流形曲率变化的适应性.本文在偏微分方程算法的基础上提出一种二维稳定流形的自适应推进算法.该算法的基本思想是根据稳定流形曲率的变化自适应地调整网格单元的尺寸.该算法首先在系统的稳定特征子空间中确定稳定流形的一个初始估计,该初始估计的网格单元尺寸设置为初始大小.然后根据稳定流形网格前沿的曲率特点自适应地产生新的备选网格单元,继而根据相切性条件更新备选点的坐标,并将距离平衡点最近的备选点接受为已知点,最后更新稳定流形网格的前沿并自适应地产生新的备选网格单元,通过这个迭代过程使流形网格自适应地向前推进.本文算法通过引入流形单元尺寸自适应,成功实现了洛伦兹流形和类球面流形的计算,并与偏微分方程算法进行了对比,结果表明自适应推进算法的流形计算单元的尺寸可在全局范围内根据流形曲率自适应地调整.利用自适应推进算法计算二维稳定流形,可实现稳定流形的自适应推进.

关键词：稳定流形不稳定流形不变流形自适应推进算法动力系统

Less and shrunken pollen 1(LSP1) encodes a member of the ABC transporter family required for pollen wall development in rice(Oryza sativa L.)

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The Crop Journal 2020年第3期8卷 492-504页

作者： Tao Luo Ting Zou guoqiang yuan Zhiyuan He Wenjie Li Yang Tao Miaomiao Liu Dan Zhou Hongfeng Zhao Jun Zhu Yueyang Liang Qiming Deng Shiquan Wang Aiping Zheng Huainian Liu Lingxia Wang Ping Li Shuangcheng Li State Key Laboratory of Crop Genetic Resource Exploitation and Utilization in Southwest China Sichuan Agricultural UniversityChengdu 611130SichuanChina State Key Laboratory of Hybrid Rice Rice Research InstituteSichuan Agricultural UniversityChengdu 611130SichuanChina

Pollen fertility is an agronomic trait that strongly influences rice yield. Recent studies have revealed that the development of the pollen wall is required for pollen fertility and is regulated by several genes. However, the mechanisms underlying pollen and pollen wall development in rice remain largely unknown. In the present study, a point mutation in a gene on chromosome 1 was identified that resulted in the production of less and shrunken pollen(LSP) and led to defects in pollen wall formation. This gene was named LSP1 and was found to encode a member of the adenosine triphosphate-binding cassette(ABC)transporter G subfamily, OsABCG3. Two other loss-of-function mutants of LSP1/OsABCG3,generated using CRISPR/Cas9 technology, showed the same male sterile phenotype. The LSP1/OsABCG3 gene showed a spatio-temporal expression pattern in the developing anthers, and is an ortholog of the Arabidopsis genes At ABCG1 and At ABCG16, which play an important role in pollen wall development. Mutation of LSP1/OsABCG3 affected the expression of several genes involved in pollen and pollen wall formation. These results suggest that LSP1/OsABCG3 is critical for normal pollen fertility and shed light on the molecular mechanisms underlying rice pollen wall development.

关键词： Rice Pollen fertility Pollen wall ABCG transporter OsABCG3

Activation of the microstructures in nickel-based bimetallic complexes for aqueous batteries

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Science China Chemistry 2024年

作者： Yichun Su Yanfei Zhang guoqiang yuan Yijian Tang Guangxun Zhang Mohsen Shakouri Hsiao-Chien Chen Huijie Zhou Zheng Liu Huan Pang School of Chemistry and Chemical Engineering Yangzhou University Canadian Light Source Inc. University of Saskatchewan Center for Reliability Science and Technologies Chang Gung University Kidney Research Center Department of Nephrology Chang Gung Memorial Hospital Institute of Technology for Carbon Neutralization Yangzhou University State Key Laboratory of Coordination Chemistry Nanjing University

The full utilization of active metal sites is meaningful for enhancing the application of materials in the energy storage field. In this study, a nickel-based nanosphere（NiSA-SSA-Co） precursor was obtained via effective doping based on a dual-ligand complex. With thermal activation, the pore microstructure of the precursor was modulated, and a transition state complex（NiSASSA-Co-350） was fabricated. NiSA-SSA-Co-350 not only retains part of the framework structure, but also fully exposes the metal nodes and enhances the efficiency of the active sites. NiSA-SSA-Co-350 exhibits optimal conductivity and intrinsic reactivity when applied as an electrode material for nickel-zinc batteries（NZBs）. In contrast to the precursor, NiSA-SSA-Co-350with large specific surface area shows a higher specific capacity(0.30 mAh cm-2at 3 mA cm-2). This work hopefully provides a new perspective on the study of nanomaterial porosity in energy storage applications.

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带饱和约束非线性系统的鲁棒自适应容错控制

华中科技大学学报（自然科学版） 2015年第10期43卷 75-80页

作者：刘聪李颖晖邓涛袁国强空军工程大学航空航天工程学院陕西西安710038 空军西安飞行学院陕西西安710306

针对发生执行器故障的饱和非线性系统提出一种主动容错控制方法.考虑系统存在的外界干扰情形,运用H∞控制结合饱和约束设计了自适应容错控制器.首先,引入饱和幅值以确保控制输入始终在界范围之内,设计包含故障估计值的自适应状态反馈控... 详细信息

针对发生执行器故障的饱和非线性系统提出一种主动容错控制方法.考虑系统存在的外界干扰情形,运用H∞控制结合饱和约束设计了自适应容错控制器.首先,引入饱和幅值以确保控制输入始终在界范围之内,设计包含故障估计值的自适应状态反馈控制输入;其次,为实现系统具有鲁棒稳定性,同时具有最大容错椭球体稳定域的控制目标,采用李雅普诺夫理论结合H∞控制方法,并运用不变集理论估计最大椭球体稳定域,将自适应容错控制器的设计方法转化为求解线性矩阵不等式约束下的多目标优化问题;最后,通过一数值算例将自适应与固定增益控制器设计方法进行对比分析.研究结果表明:自适应控制器的性能更优,更适合用于受饱和约束非线性系统的容错控制.

关键词：自适应律容错优化线性矩阵不等式稳定域

带有临界指标的非线性Poisson-Schrdinger系统解的不存在性(英文)

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应用数学 2012年第4期25卷 755-759页

作者：石启宏袁国强河北金融学院基础部河北保定071051

本文研究一个在强非线性项阻碍临界增长条件下Poisson-Schrdinger(PS)系统的孤波解.分别利用变分不等式和Pohozaev型讨论,证明了径向对称解和非平凡解的不存在性.

关键词： PS系统孤波解临界指标变分方法