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Boosting Hydrogen Storage Performance of MgH_(2) by Oxygen Vacancy-Rich H-V_(2)O_(5) Nanosheet as an Excited H-Pump

Nano-Micro Letters 2024年第8期16卷 398-416页

作者： Li Ren Yinghui Li Zi Li Xi Lin chong Lu Wenjiang Ding Jianxin Zou National Engineering Research Center of Light Alloys Net Forming&State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Shanghai Engineering Research Center of Mg Materials and Applications&School of Materials Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Center of Hydrogen Science Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Instrumental Analysis Center of SJTU Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

MgH_(2) is a promising high-capacity solid-state hydrogen storage material,while its application is greatly hindered by the high desorption temperature and sluggish ***,intertwined 2D oxygen vacancy-rich V_(2)O_(5) nanosheets(H-V_(2)O_(5))are specifically designed and used as catalysts to improve the hydrogen storage properties of MgH_(2).The as-prepared MgH_(2)-H-V_(2)O_(5) composites exhibit low desorption temperatures(Tonset=185℃)with a hydrogen capacity of 6.54 wt%,fast kinetics(Ea=84.55±1.37 kJ mol^(-1) H_(2) for desorption),and long cycling ***,hydrogen absorption can be achieved at a temperature as low as 30℃ with a capacity of 2.38 wt%within 60 ***,the composites maintain a capacity retention rate of~99%after 100 cycles at 275℃.Experimental studies and theoretical calculations demonstrate that the in-situ formed VH_(2)/V catalysts,unique 2D structure of H-V_(2)O_(5) nanosheets,and abundant oxygen vacancies positively contribute to the improved hydrogen sorption ***,the existence of oxygen vacancies plays a double role,which could not only directly accelerate the hydrogen ab/de-sorption rate of MgH_(2),but also indirectly affect the activity of the catalytic phase VH_(2)/V,thereby further boosting the hydrogen storage performance of MgH_(2).This work highlights an oxygen vacancy excited“hydrogen pump”effect of VH_(2)/V on the hydrogen sorption of Mg/MgH_(2).The strategy developed here may pave a new way toward the development of oxygen vacancy-rich transition metal oxides catalyzed hydride systems.

关键词： Hydrogen storage MgH_(2) V_(2)O_(5)nanosheets Oxygen vacancies VH_(2)

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Noise-Tolerant ZNN-Based Data-Driven Iterative Learning Control for Discrete Nonaffine Nonlinear MIMO Repetitive Systems

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IEEE/CAA Journal of Automatica Sinica 2024年第2期11卷 344-361页

作者： Yunfeng Hu chong Zhang Bo Wang jing Zhao Xun Gong jinwu Gao Hong Chen State Key Laboratory of Automotive Simulation and Control Jilin UniversityJilin UniversityChangchun 130025China College of Communication Engineering Jilin UniversityJilin UniversityChangchun 130025China Department of Electromechanical Engineering University of MacaoMacao 999078China School of Artificial Intelligence Jilin UniversityChangchun 130012China IEEE College of Electronics and Information Engineering Tongji UniversityShanghai 200092China

Aiming at the tracking problem of a class of discrete nonaffine nonlinear multi-input multi-output(MIMO) repetitive systems subjected to separable and nonseparable disturbances, a novel data-driven iterative learning control(ILC) scheme based on the zeroing neural networks(ZNNs) is proposed. First, the equivalent dynamic linearization data model is obtained by means of dynamic linearization technology, which exists theoretically in the iteration domain. Then, the iterative extended state observer(IESO) is developed to estimate the disturbance and the coupling between systems, and the decoupled dynamic linearization model is obtained for the purpose of controller synthesis. To solve the zero-seeking tracking problem with inherent tolerance of noise,an ILC based on noise-tolerant modified ZNN is proposed. The strict assumptions imposed on the initialization conditions of each iteration in the existing ILC methods can be absolutely removed with our method. In addition, theoretical analysis indicates that the modified ZNN can converge to the exact solution of the zero-seeking tracking problem. Finally, a generalized example and an application-oriented example are presented to verify the effectiveness and superiority of the proposed process.

关键词： Adaptive control control system synthesis data-driven iterative learning control neurocontroller nonlinear discrete time systems

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润滑油灰分对直喷汽油机颗粒捕集器性能影响

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吉林大学学报（工学版） 2022年第11期52卷 2501-2507页

作者：汤东韩宇彬华伦潘金冲刘胜江苏大学汽车与交通工程学院江苏镇江212013 清华大学苏州汽车研究院江苏苏州215200

为研究不同灰分等级润滑油对汽油机颗粒捕集器(GPF)耐久性能的影响,本文基于快速老化试验,分析了灰分累积对发动机转矩、油耗、背压、过滤效率、气体污染物转化效率以及储氧性能的影响。结果表明:润滑油灰分等级越高,加载在GPF中的灰分... 详细信息

为研究不同灰分等级润滑油对汽油机颗粒捕集器(GPF)耐久性能的影响,本文基于快速老化试验,分析了灰分累积对发动机转矩、油耗、背压、过滤效率、气体污染物转化效率以及储氧性能的影响。结果表明:润滑油灰分等级越高,加载在GPF中的灰分越高,灰分的捕集率也越高;灰分累积会使发动机动力性能和GPF催化性能都有所下降,但一定量的灰分可以提高GPF的过滤效率,降低PN的排放。

关键词：动力机械及工程汽油机颗粒捕集器灰分润滑油耐久性能催化性能

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人远端上游原件结合蛋白在舌癌组织中的表达及其与临床病理参数和预后的关系

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中山大学学报（医学版） 2018年第3期39卷 393-399页

作者：陈洋刘佳梦冯崇锦中山大学附属第一医院口腔科广东广州510080

【目的】研究人远端上游原件结合蛋白(FUBP1)在舌鳞状细胞癌(TSCC)组织及其癌旁正常组织中的表达情况,探讨FUBP1在TSCC发生发展中的作用及其临床意义。【方法】采用免疫组化法检测FUBP1在收集的90例TSCC组织及其癌旁正常组织中的表达;q ... 详细信息

【目的】研究人远端上游原件结合蛋白(FUBP1)在舌鳞状细胞癌(TSCC)组织及其癌旁正常组织中的表达情况,探讨FUBP1在TSCC发生发展中的作用及其临床意义。【方法】采用免疫组化法检测FUBP1在收集的90例TSCC组织及其癌旁正常组织中的表达;q RT-PCR及Western blot技术分别检测20对和8对TSCC组织及其癌旁正常组织中FUBP1的表达,并分析其与患者临床病理参数、预后的关系。【结果】免疫组化、q RT-PCR和Western blot结果均显示,TSCC组织中FUBP1的表达水平高于相应癌旁正常组织(P<0.05);TSCC组织标本中的FUBP1在晚期、颈淋巴结转移患者中呈高表达(P<0.001),FUBP1高表达组比FUBP1低表达组的5年生存率低(P=0.035);FUBP1表达水平是影响患者总生存率的独立预测指标。【结论】FUBP1在TSCC组织中的表达上调并且与TSCC患者不良预后关系密切,提示FUBP1高表达可能促进TSCC肿瘤形成和发展,并作为判断患者预后的指标。

关键词：舌鳞状细胞癌 FUBP1 肿瘤发生增殖预后

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农民问题的解决:大国现代化的必由之路——英、法、美、俄的历史分析

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江苏行政学院学报 2006年第1期 124-130页

作者：金重远复旦大学历史系上海200433

农民问题在资产阶级革命中占有极其重要的地位。从农业社会向工业社会过渡,农民必须接受“改造”,以便融入新社会。农民问题的解决取决于土地再分配的形式。英国、法国、美国和俄罗斯在这方面都走过了不同的道路,并对这些国家的现代化... 详细信息

农民问题在资产阶级革命中占有极其重要的地位。从农业社会向工业社会过渡,农民必须接受“改造”,以便融入新社会。农民问题的解决取决于土地再分配的形式。英国、法国、美国和俄罗斯在这方面都走过了不同的道路,并对这些国家的现代化产生了很大的影响。随着农民的涌入大城市,城市化遂成为一种常见的现象,我们必须采取强有力的措施,以阻止它的某些消极后果在中国出现。

关键词：农业革命土地的再分配城市化

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初探巴西式政变——以1961年巴西政局变动为个案研究

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江苏行政学院学报 2005年第1期 124-129页

作者：金重远复旦大学历史系上海200433

1961年 8月,发生在巴西的政变迫使上任不久的夸德洛斯总统下台,此后古拉特副总统虽经受住政治危机的风波,得以继任总统,但两年半后仍难逃被推翻的厄运。初看起来,巴西在二战后所发生的政变有些不那么像政变,因为较之拉美许多国家的政变... 详细信息

1961年 8月,发生在巴西的政变迫使上任不久的夸德洛斯总统下台,此后古拉特副总统虽经受住政治危机的风波,得以继任总统,但两年半后仍难逃被推翻的厄运。初看起来,巴西在二战后所发生的政变有些不那么像政变,因为较之拉美许多国家的政变,确实较少血腥味,但是,这些确是政变,一种巴西式的政变,集中反映了巴西社会固有的矛盾。

关键词：夸德洛斯古拉特瓦加斯政变

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Difference in microstructural characteristics of stamp-charged coke and gravity-charged coke with approximate macroscopic performance

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Journal of Iron and Steel Research International 2024年第5期31卷 1050-1062页

作者： chong Zou Zheng-yan Huang Jian-yun Li Bin Li Shi-wei Liu Yuan She School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an710311ShaanxiChina Technical Center of Shandong Iron and Steel Co. Ltd.(Laiwu Branch)Jinan271104ShandongChina

The microstructural characteristics including optical texture,porosity and pore structure and chemical structure of stamp-charged coke(SCC)and gravity-charged coke(GCC)with similar conventional macro-indicators were investigated,and the properties including micro-strength,reactivity of coke matrix and that after alkali enrichment were comparatively studied by various characterization *** anisotropic structure of SCC is composed of high content of fine mosaic texture,while the content of medium mosaic texture,coarse texture and fibrous texture is *** statistical average shows that the fine mosaic average of SCC(24.89%)is 3.78 times the GCC average(6.58%),and the coarse mosaic average(1.24%)is only about 1/3 of the GCC average(3.43%).The porosity of SCC is lower than that of GCC,but tamping process does not lead to the fact that the number of closed pores of SCC is significantly lower than that of *** the structure of SCC is compact,its pore number is large and the pore wall is *** of coke with diameter less than 150 nm seem unaffected by tamping *** aromatic structure of SCC was less ordered than that of GCC,which was speculated to be related to the addition of more low metamorphic coal in *** microscopic strength and structural strength of SCC are lower than those of *** reactivity of coke matrix is affected by the specific surface area,but it is not the determining factor of its *** improvement in dissolution reactivity of coke after potassium enrichment is independent of coke type.

关键词： Stamp-charged coke Optical texture Porosity Microstructure Reactivity

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Application of deep learning in iron ore sintering process:a review

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Journal of Iron and Steel Research International 2024年第5期31卷 1033-1049页

作者： Yu-han Gong chong-hao Wang Jie Li Muhammad Nasiruddin Mahyuddin Mohamad Tarmizi Abu Seman School of Electrical and Electronic Engineering Universiti Sains Malaysia14300 Nibong TebalPenangMalaysia College of Electrical Engineering North China University of Science and TechnologyTangshan 063210HebeiChina Technology Transfer Center North China University of Science and TechnologyTangshan 063210HebeiChina School of Metallurgy and Energy North China University of Science and TechnologyTangshan 063210HebeiChina

In the wake of the era of big data,the techniques of deep learning have become an essential research direction in the machine learning field and are beginning to be applied in the steel *** sintering process is an extremely complex industrial *** the main process of the blast furnace ironmaking industry,it has great economic value and environmental protection significance for iron and steel *** is also one of the fields where deep learning is still in the exploration *** order to explore the application prospects of deep learning techniques in iron ore sintering,a comprehensive summary and conclusion of deep learning models for intelligent sintering were presented after reviewing the sintering process and deep learning models in a large number of research ***,the mechanisms and characteristics of parameters in sintering processes were introduced and analysed in detail,and then,the development of iron ore sintering simulation techniques was ***,deep learning techniques were introduced,including commonly used models of deep learning and their ***,the current status of applications of various types of deep learning models in sintering processes was elaborated in detail from the aspects of prediction,controlling,and optimisation of key *** speaking,deep learning models that could be more effectively implemented in more situations of the sintering and even steel industry chain will promote the intelligent development of the metallurgical industry.

关键词： Deep learning Sintering process Modelling Simulation technology Intelligent sintering

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Water disinfection:Advances in photocatalysis and piezo/triboelectric catalysis with progressively enhanced energy utilization

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SusMat 2024年第5期4卷 114-138页

作者： Zhidi Chen Mengyao Pan chong Cheng jing Luo Xu Deng Institute of Fundamental and Frontier Sciences School of MedicineSichuan Provincial People’s HospitalUniversity of Electronic Science and Technology of ChinaChengduChina College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengduChina Shenzhen Institute for Advanced Study University of Electronic Science and Technology of ChinaShenzhenChina

Increasing climate-related extreme weather events and conflicts hinder safe water sanitation for vulnerable *** developing areas,centralized water systems are impractical due to high costs and poor ***,technologies utilizing renewable energy like solar and mechanical energy for water treatment hold *** is critical to develop photocatalysts and piezo-electric/triboelectric catalysts that capture solar energy as well as mechanical energy to generate disinfectants to maximize energy *** latest advancements in principles,materials,and processes utilizing solar and mechan-ical energy for water disinfection are highlighted in this ***,we elucidate both direct and indirect mechanisms of sunlight-mediated water dis-infection,discuss the evolution of photocatalysts from simple UV absorption to visible-light utilization,and even near-infrared light exploitation to enhance solar spectrum utilization ***,we delve into the fundamen-tal principles of piezoelectricity and triboelectricity relying on mechanical energy conversion as well as summarize the development of piezo/triboelectric cat-alysts from being driven by high-frequency energy to utilizing low-frequency mechanical energy from the ***,challenges and directions for efficient systems are outlined to inspire rational design strategies and accel-erate the production of superior catalytic systems applicable across a broad range.

关键词： photocatalysis piezo/triboelectric catalysis water disinfection

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3D suitability evaluation of urban underground space using a variable weight method and considering ground restrictions

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Underground Space 2024年第6期19卷 208-226页

作者： Jian Pu Yu Huang Yandong Bi Zhen Guo Fei Deng Xingyue Li chong Xu Department of Geotechnical Engineering College of Civil EngineeringTongji UniversityShanghai 200092China The State Key Laboratory on Disaster Reduction in Civil Engineering Tongji UniversityShanghai 200092China Foshan Bureau of Geological Survey of Guangdong Province Foshan 52800China National Institute of Natural Hazards Ministry of Emergency Management of ChinaBeijing 100085China

The evaluation of urban underground space(UUS)suitability involves multiple *** weight to these indicators is crucial for accurate *** paper presents a method for spatially variable weight assignment of indicators using the order relation analysis method(G1-method),the entropy weight method,an improved grey relational analysis(GRA)and a set of spatial weight adjustment ***,the subjective and objective weights of indicators for engineering geological and hydrogeological conditions were determined by the G1-method and entropy weight method,respectively,and their combined weights were then obtained using the principle of minimum discriminatory *** study highlighted the impact of surface restrictions,such as buildings,on UUS,and the degree of the influence of these buildings gradually decreased with the increase in depth of the rock and soil mass in UUS,which resulted in changes in weights of indicators with *** address this issue,a coefficient was defined as the standardized value of the ratio of additional stress applied by restrictions to the self-weight stress of soil at the same depth to modify the combined weights so that all weights of indicators could vary in ***,an improved GRA was used to determine the suitability level of each evaluation cell using the maximum correlation *** method was applied to the 3D suitability evaluation of UUS in Sanlong Bay,Foshan City,Guangdong Province,China,including 16 evaluation *** study comprehensively considered the influence of multiple factors,thereby providing reference for evaluating the suitability of UUS in big cities.

关键词： 3D suitability evaluation Urban underground space Ground restriction Variable weight method Improved grey relational analysis

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