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Nanograting‑Based Dynamic Structural Colors Using Heterogeneous Materials

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Nano-Micro Letters 2025年第3期17卷 138-151页

作者： Jingang Wang Haibo Yu Jianchen zheng Yuzhao Zhang Hongji Guo Ye qiu Xiaoduo Wang Yongliang Yang Lianqing Liu State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang 110016People’s Republic of China University of Chinese Academy of Sciences Beijing 100049People’s Republic of China

Dynamic structuralcolors can change in response todifferent environmental *** ability remains effectiveeven when the size of the speciesresponsible for the structural coloris reduced to a few micrometers,providing a promising sensingmechanism for solving microenvironmentalsensing problems inmicro-robotics and ***, the lack of dynamicstructural colors that can encoderapidly, easily integrate, and accuratelyreflect changes in physical quantities hinders their use in microscale sensing applications. Herein, we present a 2.5-dimensionaldynamic structural color based on nanogratings of heterogeneous materials, which were obtained by interweaving a pH-responsive hydrogelwith an IP-L photoresist. Transverse gratings printed with pH-responsive hydrogels elongated the period of longitudinal grating in the swollenstate, resulting in pH-tuned structural colors at a 45° incidence. Moreover, the patterned encoding and array printing of dynamic structuralcolors were achieved using grayscale stripe images to accurately encode the periods and heights of the nanogrid structures. Overall, dynamicstructural color networks exhibit promising potential for applications in information encryption and in situ sensing for microfluidic chips.

关键词： Dynamic structural colors Four-dimensional printing pH-responsive Nanogrid Heterogeneous materials

Unlocking the stable interface in aqueous zinc-ion battery with multifunctional xylose-based electrolyte additives

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Journal of Energy Chemistry 2025年第1期100卷 770-778页

作者： Xiaoqin Li Jian Xiang Lu qiu Xiaohan Chen Yinkun Zhao Yujue Wang Qu yue Taotao Gao Wenlong Liu Dan Xiao Zhaoyu Jin Panpan Li Institute for Advanced Study Chengdu University School of Mechanical Engineering Chengdu University College of Food and Biological Engineering Chengdu University Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China College of Materials Science and Engineering Sichuan University

The growth of dendrites and the side reactions occurring at the Zn anode pose significant challenges to the commercialization of aqueous Zn-ion batteries（AZIBs）. These challenges arise from the inherent conflict between mass transfer and electrochemical kinetics. In this study, we propose the use of a multifunctional electrolyte additive based on the xylose（Xylo） molecule to address these issues by modulating the solvation structure and electrode/electrolyte interface, thereby stabilizing the Zn anode. The introduction of the additive alters the solvation structure, creating steric hindrance that impedes charge transfer and then reduces electrochemical kinetics. Furthermore, in-situ analyses demonstrate that the reconstructed electrode/electrolyte interface facilitates stable and rapid Zn2+ion migration and suppresses corrosion and hydrogen evolution reactions. As a result, symmetric cells incorporating the Xylo additive exhibit significantly enhanced reversibility during the Zn plating/stripping process, with an impressively long lifespan of up to 1986 h, compared to cells using pure ZnSO4electrolyte. When combined with a polyaniline cathode, the full cells demonstrate improved capacity and long-term cyclic stability. This work offers an effective direction for improving the stability of Zn anode via electrolyte design, as well as highperformance AZIBs.

关键词： Solvation

Porous Organic Cage‑Based Quasi‑Solid‑State Electrolyte with Cavity‑Induced Anion‑Trapping Effect for Long‑Life Lithium Metal Batteries

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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

有为政府与有效市场下的我国职业教育治理:理论逻辑与实践路径

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高校教育管理 2025年第1期19卷 62-73页

作者：李政邱懿华东师范大学职业教育与成人教育研究所上海200062 中华人民共和国教育部职业教育与成人教育司北京100816 北京大学教育学院北京100871

政府与市场的关系是职业教育内外部治理关系的核心,先后经历了政府主导论、市场基础论、有为政府与有效市场论的演变。在有为政府与有效市场的关系形塑下,职业教育治理改革应实现三大转变,即政府治理方式应从事后响应转变为事前布局,职... 详细信息

政府与市场的关系是职业教育内外部治理关系的核心,先后经历了政府主导论、市场基础论、有为政府与有效市场论的演变。在有为政府与有效市场的关系形塑下,职业教育治理改革应实现三大转变,即政府治理方式应从事后响应转变为事前布局,职业院校治理角色应从代理主体转变为改革先锋,市场主体参与治理的动机应从短期利益转变为战略投资。政府、职业院校和市场的关系应由单向的“影响回应”关系转变为双向的“并行互动”关系。当前,我国政府参与职业教育治理的权责边界不清,职业院校办学自主权无法满足发展需求,市场主体参与职业教育缺乏战略自觉。为此,我国应加强各级政府的政策协作,提升政府政策的精准度和前瞻性;优化职业院校组织定位和内部治理模式,提升学校治理的灵活性和有效性;深度分析企业发展的外部条件和内部需求,提升企业发展的积极性和适应性。

关键词：职业教育治理有为政府有效市场全面深化改革办学自主权

Enhanced photocatalytic degradation of sulfamethoxazole by stable hierarchical Fe_(2)O_(3)/Co_(3)O_(4) heterojunction on nickel foam

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Chinese Chemical Letters 2021年第11期32卷 3431-3434页

作者： Jinli qiu Cailiang yue Wenting zheng Fuqiang Liu Junjie Zhu School of the Environment&School of Chemistry and Chemical Engineering Nanjing UniversityNanjing 210023China

A facile approach was successfully employed to prepare Fe_(2)O_(3)/Co_(3)O_(4)nanosheet arrays on nickel foams(Fe_(2)O_(3)/Co_(3)O_(4)@NF),which owned such advantages as narrow band gap energies and high separation rate of photoexcited electron-hole *** combination of Fe_(2)O_(3)and Co_(3)O_(4)dramatically enhanced the photocatalytic activity towards sulfamethoxazole(SMZ)degradation,with the highest catalytic efficiency of k=0.0538 min^(−1),which was much higher than that of Fe_(2)O_(3)@NF(0.0098 min^(−1))and Co_(3)O_(4)@NF(0.0094 min^(−1)).The introduction of Ni foam could not only act as the support to anchor photocatalyst,but also work as the electron mediator to promote the transition of electron-hole *** species trapping experiments combined with electron paramagnetic resonance analysis confirmed^(·)O^(-)_(2)−was primarily responsible for SMZ ***,Fe_(2)O_(3)/Co_(3)O_(4)@NF was effective and almost unaffected by inorganic cations and anions in aqueous *** study could provide a facile and promising path for the construction of self-supported metal oxide-based heterojunction with high efficiency and strong stability.

关键词： Photocatalysis Sulfamethoxazole Ni foam Fe_(2)O_(3) CO_(3)O_(4)

随机纤维膜过滤器捕集浮游生物颗粒的DPM数值模拟

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湖南工业大学学报 2025年第2期39卷 15-21页

作者：邱显焱郑静湖南工业大学机械工程学院湖南株洲412007

目前常用的深海浮游生物取样方法,是采用水泵抽取海水,并通过过滤技术捕捉其中的浮游生物。因此,以浮游生物过滤器为研究对象,通过随机算法建立三维纤维膜微观模型,并基于相似准则对纤维膜模型进行数值模拟研究,同时,采用拉格朗日离散... 详细信息

目前常用的深海浮游生物取样方法,是采用水泵抽取海水,并通过过滤技术捕捉其中的浮游生物。因此,以浮游生物过滤器为研究对象,通过随机算法建立三维纤维膜微观模型,并基于相似准则对纤维膜模型进行数值模拟研究,同时,采用拉格朗日离散相模型(DPM)追踪浮游生物颗粒在过滤器内的运动轨迹。研究结果表明:入口速度的变化对流场的压力和速度分布有显著影响,随着入口速度增加,流场内部速度差增大,流场中的压力分布出现明显的分层现象,且压力损失随入口速度增大而增大。其孔隙较小的纤维模型具有更好的过滤性能,对浮游生物颗粒的过滤效率基本稳定在80%。

关键词：浮游生物纤维滤膜数值模拟 DPM 捕集效率

Selective construction of molecular Solomon links and figure-eight knots by fine-tuning unsymmetrical ligands

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Science China Chemistry 2023年第10期66卷 2885-2891页

作者： qiu-Shui Mu Xiang Gao zheng Cui yue-Jian Lin Guo-Xin Jin State Key Laboratory of Molecular Engineering of Polymers Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsDepartment of ChemistryFudan UniversityShanghai 200433China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China

Using the strategy of ligand fine-tuning by steric hindrance, we successfully obtained Solomon links(4_(1)^(2)) and figure-eight knots(4_(1)) with half-sandwich organometallic unit and amino-acid embedded ligands. The two curved bidentate ligands exhibit subtle differences, whereas they result in totally distinct entanglement modes. An alcoholysis reaction with the ligands leads to the formation of a molecular tweezer. Notably, unsymmetrical ligands were utilized in the self-assembly process to explore the formation of directional molecules, and the reactions exhibited selectivity due to comprehensive π interactions and multiple hydrogen bonds. The topologies and behavior of the above structures were confirmed through single-crystal X-ray diffraction,nuclear magnetic resonance techniques and mass spectrometry.

关键词： interlocked molecule figure-eight knot solomon link supramolecular self-assembly

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A Class of Parameter-free Filled Functions for Box-constrained System of Nonlinear Equations

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Acta Mathematicae Applicatae Sinica 2016年第2期32卷 355-364页

作者： Liu-yang YUAN Zhong-ping WAN qiu-hua TANG yue zheng Hubei Province Key Laboratory of Systems Science in Metallurgical Process Wuhan University of Science and Technology School of Mathematics and Statistics Wuhan University Industrial Engineering Department Wuhan University of Science and Technology School of Management Huaibei Normal University

In this paper, a class of parameter-free filled functions is proposed for solving box-constrained system of nonlinear equations. Firstly, the original problem is converted into an equivalent global optimization problem. Subsequently, a class of parameter-free filled functions is proposed for solving the problem. Some properties of the new class of filled functions are studied and discussed. Finally, an algorithm which neither computes nor explicitly approximates gradients during minimizing the filled functions is presented. The global convergence of the algorithm is also established. The implementation of the algorithm on several test problems is reported with satisfactory numerical results.

关键词： system of nonlinear equations global optimization filled function method local minimizer globalminimizer

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高管限薪方式与国有企业高质量发展

经济问题 2025年第1期 70-78页

作者：吴秋生郑玥臻山西财经大学会计学院

2009年和2015年中华人民共和国人力资源和社会保障部和国务院国有资产监督管理委员会先后出台了国有企业高管限薪规定，采取了绝对限薪和相对限薪两种不同方式，因此，有必要明晰哪一种方式更有利于促进国有企业高质量发展。以2010—202... 详细信息

2009年和2015年中华人民共和国人力资源和社会保障部和国务院国有资产监督管理委员会先后出台了国有企业高管限薪规定，采取了绝对限薪和相对限薪两种不同方式，因此，有必要明晰哪一种方式更有利于促进国有企业高质量发展。以2010—2023年的A股国有企业为样本进行研究，结果表明：与绝对限薪相比，相对限薪更能够促进国有企业高质量发展，且相对限薪程度越高、内部控制质量越高，上述关系越明显。进一步研究发现，相对限薪促进国有企业发展质量提高是通过降低盈余管理、提高创新效率等路径实现的，且这种作用路径在产品市场竞争度高的国有企业和实体国有企业中更明显。研究结论对合理制定和有效实施限薪政策及提高企业内部控制质量，促进国有企业高质量发展具有启示意义。

关键词：绝对限薪相对限薪全要素生产率内部控制质量