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Interface construction of NiCo LDH/NiCoS based on the 2D ultrathin nanosheet towards oxygen evolution reaction

Nano Research 2022年第6期15卷 4986-4995页

作者： Jiahui Li Lili Wang haojia he Yiquan Chen Zirui Gao Na Ma Bing Wang Linlin Zheng Rulin Li Yujia Wei Junqing Xu Yao Xu Bowen Cheng Zhen Yin Ding Ma State Key Laboratory of Separation Membranes and Membrane Processes School of ChemistryTiangong UniversityTianjin 300387China School of Chemical Engineering and Technology Tiangong UniversityTianjin 300387China Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering and College of Engineeringand BIC-ESATPeking UniversityBeijing 100871China College of Chemical Engineering and Materials Science Tianjin University of Science and TechnologyTianjin 300457China China Tianchen Engineering Corporation Tianjin 300400China

Carbon-free hydrogen as a promising clean energy source can be produced with electrocatalysts via water *** evolution reaction(OER)as anodic reaction determines the overall efficiency of water electrolysis due to sluggish OER ***,it’s much desirable to explore the efficient and earth-abundant transition-metal-based OER electrocatalysts with high current density and superior stability for industrial alkaline ***,we demonstrate a significant enhancement of OER kinetics with the hybrid electrocatalyst arrays in alkaline via judiciously combining earth-abundant and ultrathin NiCo-based layered double hydroxide(NiCo LDH)nanosheets with nickel cobalt sulfides(NiCoS)with a facile metal-organic framework(MOF)-template-involved surface sulfidation *** obtained NiCo LDH/NiCoS hybrid arrays exhibits an extremely low OER overpotential of 308 mV at 100 mA·cm^(−2),378 mV at 200 mA·cm^(−2)and 472 mV at 400 mA·cm^(−2)in 1 M KOH solution,respectively.A much low Tafel slope of 48 mV·dec^(−1)can be ***,with the current density from 50 to 250 mA·cm^(−2),the NiCo-LDH/NiCoS hybrid arrays can run for 25 h without any *** results demonstrate that the construction of hybrid arrays with abundant interfaces of NiCo LDH/NiCoS can facilitate OER kinetics via possible modulation of binding energy of O-containing intermediates in alkaline *** present work would pave the way for the development of lowcost and efficient OER catalysts and industrial application of water alkaline electrolyzers.

关键词： oxygen evolution reaction hybrid structure ultrathin nanosheet layered double hydroxide surface sulfidation interface of NiCo LDH/NiCoS

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基于链与链竞争的最优专利许可策略选择

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中国管理科学 2024年第9期32卷 142-153页

作者：何浩嘉艾兴政唐华郭松波电子科技大学经济与管理学院四川成都611731

本文针对两条分别由一个供应商和一个专有制造商组成的竞争性供应链,研究供应链最优专利许可策略选择及其影响问题。作为专利持有者,供应商可选择以制造商产品销售价格的百分比(基于产品的策略)或以组件批发价格的百分比(基于组件的策略... 详细信息

本文针对两条分别由一个供应商和一个专有制造商组成的竞争性供应链,研究供应链最优专利许可策略选择及其影响问题。作为专利持有者,供应商可选择以制造商产品销售价格的百分比(基于产品的策略)或以组件批发价格的百分比(基于组件的策略)向制造商进行专利许可。两竞争制造商生产销售可替代产品,但其生产成本有异质性。制造商在获得授权后可使用专利降低生产成本。研究表明,供应链参与者对许可策略的偏好取决于竞争强度、相对成本差异和单位许可费的综合影响。供应商均采用基于产品的策略可能成为其自身的占优策略,但该策略不能受到全体成员的青睐。然而,基于产品的策略并不总会损害被许可方的利益,特定情形下,低效制造商所在供应链的供应商基于组件进行技术授权,同时高效制造商所在供应链的供应商基于产品进行技术授权,该策略组合会使全体供应商和制造商实现共赢。

关键词：竞争供应链专利许可策略 Stackelberg博弈纳什均衡

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包装领域可调节塑封张口器的工作原理与结构优化设计

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工业设计 2019年第6期 155-156页

作者：何豪佳安徽耐科装备科技股份有限公司

在基于加工技术及实际应用的塑料型材或管材的包装领域的生产规范的基础上,目的是提升产品整体形象的设计依据,帮助企业在品牌塑造中提升产品系列化程度、规范系列产品形象、提升企业品牌识别度,本文采用张口后的薄膜,传送带式送料的方... 详细信息

在基于加工技术及实际应用的塑料型材或管材的包装领域的生产规范的基础上,目的是提升产品整体形象的设计依据,帮助企业在品牌塑造中提升产品系列化程度、规范系列产品形象、提升企业品牌识别度,本文采用张口后的薄膜,传送带式送料的方式,从而进行优化可调节张口器设计,实现能够方便、自动和快捷地撑开塑料薄膜的效果。

关键词：可调节张口器薄膜包装优化设计

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异质性服务平台直营、转销或混合渠道结构选择

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管理学报 2024年第11期21卷 1688-1697页

作者：郭松波艾兴政何浩嘉唐华太原理工大学经济与管理学院电子科技大学经济与管理学院成都市611731 西华大学管理学院西南交通大学交通运输与物流学院

考虑异质性服务质量努力与两部定价佣金合同,构建制造商和平台构成的博弈模型,研究异质性服务平台渠道结构,识别直营、转销和混合3种渠道结构成为平台、制造商及系统最佳选择的条件。研究表明,当平台向制造商收取一定范围的固定管理费用... 详细信息

考虑异质性服务质量努力与两部定价佣金合同,构建制造商和平台构成的博弈模型,研究异质性服务平台渠道结构,识别直营、转销和混合3种渠道结构成为平台、制造商及系统最佳选择的条件。研究表明,当平台向制造商收取一定范围的固定管理费用时,异质性服务平台选择混合渠道;制造商入侵平台形成的混合渠道会提高批发价格,加剧双重边际效应;制造商服务质量努力系数增大能够减弱服务异质性,使得混合渠道中的批发价格降低,销量增加,促进制造商提升服务质量。并通过设计有效的两部定价佣金合同,使得混合渠道实现Pareto最优。

关键词：异质性服务混合渠道两部定价佣金合同制造商入侵

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Constraints on holographic QCD phase transitions from PTA observations

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 71-78页

作者： Song he Li Li Sai Wang Shao-Jiang Wang Center for Theoretical Physics and College of Physics Jilin University School of Physical Science and Technology Ningbo University Max Planck Institute for Gravitational Physics (Albert Einstein Institute) CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of Sciences (UCAS) School of Physical Sciences University of Chinese Academy of Sciences (UCAS) Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences

The underlying physics of QCD phase transition in the early Universe remains largely unknown due to its strong-coupling nature during the quark-gluon plasma/hadron gas transition, yet a holographic model has been proposed to quantitatively fit the lattice QCD data while with its duration of the first-order phase transition(FoPT) left undetermined. At specific baryon chemical potential, the first-order QCD phase transition agrees with the observational constraint of baryon asymmetry. It, therefore, provides a scenario for phase transition gravitational waves(GWs) within the standard model of particle physics. If these background GWs could contribute dominantly to the recently claimed common-spectrum red noise from pulsar timing array(PTA) observations, the duration of this FoPT can be well constrained, and the associated primordial black holes are still allowed by current observations.

关键词： pulsar timing array QCD phase transition gravitational waves primordial black holes

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Dip2a regulates stress susceptibility in the basolateral amygdala

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Neural Regeneration Research 2025年第6期20卷 1735-1748页

作者： Jing Li Zixuan he Weitai Chai Meng Tian Huali Yu Xiaoxiao he Xiaojuan Zhu Key Laboratory of Molecular Epigenetics Ministry of Education Institute of Genetics and CytologyNortheast Normal UniversityChangchunJilin ProvinceChina

Dysregulation of neurotransmitter metabolism in the central nervous system contributes to mood disorders such as depression, anxiety, and post–traumatic stress disorder. Monoamines and amino acids are important types of neurotransmitters. Our previous results have shown that disco-interacting protein 2 homolog A(Dip2a) knockout mice exhibit brain development disorders and abnormal amino acid metabolism in serum. This suggests that DIP2A is involved in the metabolism of amino acid–associated neurotransmitters. Therefore, we performed targeted neurotransmitter metabolomics analysis and found that Dip2a deficiency caused abnormal metabolism of tryptophan and thyroxine in the basolateral amygdala and medial prefrontal cortex. In addition, acute restraint stress induced a decrease in 5-hydroxytryptamine in the basolateral amygdala. Additionally, Dip2a was abundantly expressed in excitatory neurons of the basolateral amygdala, and deletion of Dip2a in these neurons resulted in hopelessness-like behavior in the tail suspension test. Altogether, these findings demonstrate that DIP2A in the basolateral amygdala may be involved in the regulation of stress susceptibility. This provides critical evidence implicating a role of DIP2A in affective disorders.

关键词： 5-hydroxytryptamine acute restraint stress basolateral amygdala CaMKII neurons DIP2A metabolomics neurotransmitters principal component analysis stress susceptibility tryptophan

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The effects of exercise interventions on brain-derived neurotrophic factor levels in children and adolescents:a meta-analysis

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Neural Regeneration Research 2025年第5期20卷 1513-1520页

作者： Xueyun Shao Longfei he Yangyang Liu Physical Education School Shenzhen UniversityShenzhenGuangdong ProvinceChina Shenzhen Institute of Neuroscience ShenzhenGuangdong ProvinceChina

Brain-derived neurotrophic factor is a crucial neurotrophic factor that plays a significant role in brain health. Although the vast majority of meta-analyses have confirmed that exercise interventions can increase brain-derived neurotrophic factor levels in children and adolescents, the effects of specific types of exercise on brain-derived neurotrophic factor levels are still controversial. To address this issue, we used meta-analytic methods to quantitatively evaluate, analyze, and integrate relevant studies. Our goals were to formulate general conclusions regarding the use of exercise interventions, explore the physiological mechanisms by which exercise improves brain health and cognitive ability in children and adolescents, and provide a reliable foundation for follow-up research. We used the Pub Med, Web of Science, Science Direct, Springer, Wiley Online Library, Weipu, Wanfang, and China National Knowledge Infrastructure databases to search for randomized controlled trials examining the influences of exercise interventions on brain-derived neurotrophic factor levels in children and adolescents. The extracted data were analyzed using Review Manager 5.3. According to the inclusion criteria, we assessed randomized controlled trials in which the samples were mainly children and adolescents, and the outcome indicators were measured before and after the intervention. We excluded animal experiments, studies that lacked a control group, and those that did not report quantitative results. The mean difference(MD;before versus after intervention) was used to evaluate the effect of exercise on brain-derived neurotrophic factor levels in children and adolescents. Overall, 531 participants(60 children and 471 adolescents, 10.9–16.1 years) were included from 13 randomized controlled trials. heterogeneity was evaluated using the Q statistic and I^(2) test provided by Review Manager software. The meta-analysis showed that there was no heterogeneity among the studies(P = 0.67,

关键词： adolescents brain-derived neurotrophic factor children exercise meta-analysis randomized controlled trials

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Characteristics of gut microbiota dysbiosis in patients with colorectal polyps

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 13-21页

作者： Xian-Rong Wu Xiao-Hong he Yong-Fang Xie School of Life health Information Science and Engineering Chongqing Post and Communications UniversityChongqing 400065China

This editorial,inspired by a recent study published in the World Journal of Gastrointestinal Oncology,covers the research findings on microbiota changes in various *** recurrent colorectal polyps,the abundances of Klebsiella,Parvimonas,and Clostridium increase,while those of Bifidobacterium and Lactoba-cillus *** dysbiosis may promote the formation and recurrence of *** microbial changes have also been observed in colorectal cancer,inflammatory bowel disease,autism spectrum disorder,and metabolic syndrome,indicating the role of increased pathogens and decreased probiotics in these *** the gut microbiota,particularly by increasing probiotic levels,may help prevent polyp recurrence and promote gut *** microbial intervention strategy holds promise as an adjunctive treatment for patients with colorectal polyps.

关键词： Recurrent colorectal polyps Gut microbiota dysbiosis Klebsiella Probiotics Intestinal inflammation Microbial intervention strategy

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Low‑Temperature Oxidation Induced Phase Evolution with Gradient Magnetic heterointerfaces for Superior Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第1期17卷 191-204页

作者： Zizhuang he Lingzi Shi Ran Sun Lianfei Ding Mukun he Jiaming Li Hua Guo Tiande Gao Panbo Liu School of Chemistry and Chemical Engineering Northwestern Polytechnical UniversityXi’an 710129People’s Republic of China School of Marine Science and Technology Northwestern Polytechnical UniversityXi’an 710072People’s Republic of China

Gradient magnetic heterointerfaces have injected infinite vitality in optimizing impedance matching,adjusting dielectric/magnetic resonance and promoting electromagnetic(EM)wave absorption,but still exist a significant challenging in regulating local phase ***,accordion-shaped Co/Co_(3)O_(4)@N-doped carbon nanosheets(Co/Co_(3)O_(4)@NC)with gradient magnetic heterointerfaces have been fabricated via the cooperative high-temperature carbonization and lowtemperature oxidation *** results indicate that the surface epitaxial growth of crystal Co_(3)O_(4) domains on local Co nanoparticles realizes the adjustment of magnetic-heteroatomic components,which are beneficial for optimizing impedance matching and interfacial ***,gradient magnetic heterointerfaces simultaneously realize magnetic coupling,and long-range magnetic ***,the synthesized Co/Co_(3)O_(4)@NC absorbents display the strong electromagnetic wave attenuation capability of−53.5 dB at a thickness of 3.0 mm with an effective absorption bandwidth of 5.36 GHz,both are superior to those of single magnetic domains embedded in carbon *** design concept provides us an inspiration in optimizing interfacial polarization,regulating magnetic coupling and promoting electromagnetic wave absorption.

关键词： Magnetic heterointerfaces Phase evolution Interfacial polarization Magnetic coupling Electromagnetic wave absorption

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Excitation of the abdominal ganglion affects the electrophysiological activity of indirect flight muscles of the honeybee Apis mellifera

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Insect Science 2024年第4期31卷 1187-1199页

作者： haojia Ding Shaoze Yan State Key Laboratory of Tribology in Advanced Equipment(SKLT) Division of Intelligent and Biomechanical SystemsDepartment of Mechanical EngineeringTsinghua UniversityBeijingChina

Our understanding of the nervous tissues that affect the wing flapping of insects mainly focuses on the brain,but wing flapping is a rhythmic movement related to the central pattern generator in the ventral nerve *** verify whether the neural activity of the abdominal ganglion of the honeybee(Apis mellifera)affects the flapping-wing flight,we profiled the response characteristics of indirect flight muscles to abdominal ganglion ***,a change in the neural activity of ganglion 3 or ganglion 4 has a stronger effect on the electrophysiological activity of indirect flight muscles than that of ganglion *** electrophysiological activity of vertical indirect flight muscles is affected more by the change in neural activity of the abdominal ganglion than that of lateral indirect flight ***,the change in neural activity of the abdominal ganglion mainly causes the change in the muscular activity of indirect wing muscles,but the activity patterns change relatively little and there is little change in the complicated *** work improves our understanding of the neuroregulatory mechanisms associated with the flapping-wing flight of honeybees.

关键词： abdominal ganglion electromyography flapping wing honeybee indirect flight muscle muscular activity

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