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钴掺杂铜基复合材料的制备及其电催化析氧性能

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复合材料学报 2024年第4期41卷 1923-1933页

作者：张海成杨邦志张娇高鹏向万夏郭婷徐海涛陕西理工大学化学与环境科学学院陕西省催化基础与应用重点实验室汉中723001

铜基纳米材料在电催化方面受到广泛关注,但其存在催化活性低和稳定性差的问题,探索简单高效的策略解决上述问题具有重要的实际意义。本文在室温条件下,采用Co-MOF材料在CuCl_(2)溶液中水解刻蚀策略成功在泡沫镍基底上构筑了钴掺杂的碱... 详细信息

铜基纳米材料在电催化方面受到广泛关注,但其存在催化活性低和稳定性差的问题,探索简单高效的策略解决上述问题具有重要的实际意义。本文在室温条件下,采用Co-MOF材料在CuCl_(2)溶液中水解刻蚀策略成功在泡沫镍基底上构筑了钴掺杂的碱式氯化铜/氯化亚铜复合材料。通过改变Co-MOF在CuCl_(2)溶液中的水解刻蚀时间,从而调控物种和复合物的形貌结构。最优催化剂仅需238 mV的过电位便能够驱动100 mA·cm^(−2)的电流密度。经过50 h的稳定性测试,电流密度几乎没有下降,表明其具有良好的稳定性。优异的电催化析氧反应(OER)性能可归属于Co原子的掺杂优化了Cu原子周围电子环境,激活碱式氯化铜和氯化亚铜的催化活性及CuCl_(2)对泡沫镍的刻蚀增加了活性位点。本文为铜基电催化材料的制备和电催化OER活性增强提供了新的思路和策略。

关键词：金属有机框架材料铜基材料析氧反应掺杂协同作用电催化

水利工程建设中的灾害风险评估与防灾减灾技术研究

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科技资讯 2024年第6期22卷 198-200页

作者：徐海涛陈扬济南黄河河务局山东济南250000

水利工程建设是确保水资源合理利用与防洪安全的关键环节。灾害风险评估和防灾减灾技术的研究对提高工程可靠性、保护生态环境与社会经济稳定至关重要。首先探讨了水文水资源、地质、生态环境及社会经济方面的灾害风险评估方法,其次分... 详细信息

水利工程建设是确保水资源合理利用与防洪安全的关键环节。灾害风险评估和防灾减灾技术的研究对提高工程可靠性、保护生态环境与社会经济稳定至关重要。首先探讨了水文水资源、地质、生态环境及社会经济方面的灾害风险评估方法,其次分析了相应的防灾减灾技术,最后通过案例分析,总结了灾害风险评估与防灾减灾技术在实际水利工程中的应用,指出了当前方法的优势及潜在的改进方向。

关键词：水利工程建设灾害风险评估防灾减灾技术地质灾害风险评估

Resource Allocation for Network Security Risk Assessment：A Non-Cooperative Differential Game Based Approach

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China Communications 2016年第4期13卷 131-135页

作者： xu haitao LIN Ruijie School of Computer and Communication Engineering University of Science and Technology Beijing 100083 China China Academy of Telecommunication Research of MIIT Beijing 100083 China

In this paper, we propose a non-cooperative differential game theory based resource allocation approach for the network security risk assessment. For the risk assessment, the resource will be used for risk assess, including response cost and response negative cost. The whole assessment process is considered as a differential game for optimal resource control. The proposed scheme can be obtained through the Nash Equilibrium. It is proved that the game theory based algorithm is applicable and the optimal resource level can be achieved based on the proposed algorithm.

关键词： resource allocation security risk assessment differential game non-cooperative Nash Equilibrium

产业转型背景下北京经济技术开发区产业用地混合利用实践

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城市建筑空间 2024年第1期31卷 102-105页

作者：徐海涛刘佳北京亦庄产业城市规划设计院有限公司

创新型产业是当下中国参与全球竞争的重要着力点,是城市产业转型的必然选择。创新型产业的功能布局及创新型人才的生活生产方式构成创新型产业空间的底层组织逻辑,在我国城市普遍进入存量发展时代背景下,精准匹配创新型产业空间需求尤... 详细信息

创新型产业是当下中国参与全球竞争的重要着力点,是城市产业转型的必然选择。创新型产业的功能布局及创新型人才的生活生产方式构成创新型产业空间的底层组织逻辑,在我国城市普遍进入存量发展时代背景下,精准匹配创新型产业空间需求尤为重要。梳理我国各大城市对于新型产业用地混合利用政策,归纳新型产业用地混合利用特征,结合北京经济技术开发区在不同时期产业用地的混合实践,在规划引导、政策支撑、政府管理等方面成为创新型产业发展提供借鉴。

关键词：产业转型产业用地混合利用

Intelligent Immunity Based Security Defense System for Multi-Access Edge Computing Network

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China Communications 2021年第1期18卷 100-107页

作者： Chengcheng Zhou Yanping Yu Shengsong Yang haitao xu School of Computer and Communication Engineering University of Science and Technology BeijingBeijing 100083China School of International Languages and Cultures Yunnan University of Finance and EconomicsKunming 650221China

In this paper,the security problem for the multi-access edge computing(MEC)network is researched,and an intelligent immunity-based security defense system is proposed to identify the unauthorized mobile users and to protect the security of whole *** the proposed security defense system,the security is protected by the intelligent immunity through three functions,identification function,learning function,and regulation function,***,a three process-based intelligent algorithm is proposed for the intelligent immunity *** simulations are given to prove the effeteness of the proposed approach.

关键词： intelligent immunity security defense multi-access edge computing network security

Resource Allocation in Edge-Computing Based Wireless Networks Based on Differential Game and Feedback Control

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Computers, Materials & Continua 2020年第8期64卷 961-972页

作者： Ruijie Lin haitao xu Meng Li Zhen Zhang China Telecommunication Technology Labs-Terminals China Academy of Information and Communications TechnologyBeijing10083China School of Computer and Communication Engineering University of Science and Technology BeijingBeijing100083China Department of Civil Engineering Tsinghua UniversityBeijing100084China Audio Analytic CambridgeCB58ABUK.

In this paper,we have proposed a differential game model to optimally solve the resource allocation problems in the edge-computing based wireless *** the proposed model,a wireless network with one cloud-computing center(CC)and lots of edge services providers(ESPs)is *** order to provide users with higher services quality,the ESPs in the proposed wireless network should lease the computing resources from the CC and the CC can allocate its idle cloud computing resource to the *** will try to optimally allocate the edge computing resources between the ESPs and CC using the differential game and feedback *** on the proposed model,the ESPs can choose the amount of computing resources from the CC using feedback control,which is affected by the unit price of computing resources controlled by the *** the simulation part,the optimal allocated resources for users’services are obtained based on the Nash equilibrium of the proposed differential *** effectiveness and correctness of the proposed scheme is also verified through the numerical simulations and results.

关键词： Resource allocation edge computing differential game feedback control Nash equilibrium

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赤铁矿纳米晶吸附水中砷的晶面依赖性

安全与环境学报 2024年第8期24卷 3243-3250页

作者：郭婷高捷杨钦羽徐海涛杨唯甜赵佐平陕西省催化基础与应用重点实验室陕西汉中723001 陕西理工大学化学与环境科学学院陕西汉中723001

赤铁矿会影响地下水砷的迁移转化,探索赤铁矿对As(Ⅲ)吸附的晶面依赖性对理解地下水As(Ⅲ)迁移转化和吸附去除具有重要意义。研究制备3种不同晶面暴露的赤铁矿纳米晶并用于水中As(Ⅲ)的去除,在室温条件下,当As(Ⅲ)初始质量浓度为1 mg/L... 详细信息

赤铁矿会影响地下水砷的迁移转化,探索赤铁矿对As(Ⅲ)吸附的晶面依赖性对理解地下水As(Ⅲ)迁移转化和吸附去除具有重要意义。研究制备3种不同晶面暴露的赤铁矿纳米晶并用于水中As(Ⅲ)的去除,在室温条件下,当As(Ⅲ)初始质量浓度为1 mg/L、原始pH值为6.10、吸附剂质量浓度为0.20 g/L时,赤铁矿纳米棒(Hematite Nanoplates,HNRs)在吸附平衡时对As(Ⅲ)的去除率最高为73.95%,吸附容量为8.23 mg/g,吸附行为符合Langmuir模型,As(Ⅲ)在赤铁矿表面形成了单层吸附。不同晶面暴露赤铁矿纳米晶在pH值为6时对As(Ⅲ)的去除率最高,尤其是HNRs,可达到81.67%;HNRs去除水中As(Ⅲ)受共存离子F^(-)和PO_(4)^(3-);的静电吸附、络合效应影响较大。As(Ⅲ)通过在赤铁矿纳米晶表面形成As(Ⅲ)—OH、Fe(Ⅲ)—O—As(Ⅲ)进行去除,As(Ⅲ)能优先吸附在{110}晶面上并在赤铁矿表面形成Fe(Ⅲ)—O—As(Ⅲ)络合物。研究为赤铁矿对地下水中As(Ⅲ)迁移和吸附的晶面依赖性提供了新的思路和策略。

关键词：环境科学技术基础学科赤铁矿三价砷晶面依赖性吸附

Resource utilization of high concentration SO_(2) for sulfur production over La-Ce-O_(x)@ZrO_(2) composite oxide catalyst

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Journal of Rare Earths 2023年第12期41卷 1945-1952,I0005页

作者： Yao Lu Qijie Jin Wenyu Ji Chengzhang Zhu Mutao xu Yingying Zhu haitao xu School of Environmental Science and Engineering Nanjing Tech UniversityNanjing210009China State Key Laboratory of Materials-Oriented ChemicalEngineering Nanjing Tech University Nanjing20009China College of Materials Science and Engineering Nanjing Tech UniversityNanjing210009China

Sulfur dioxide is one of the main causes of air pollution such as acid rain and photochemical smog,and its pollution control and resource utilization become an important research direction of air pollution control,The active component La-Ce-O_(x) is loaded on SiO_(2),γ-Al_(2)O_(3),TiO_(2) and ZrO_(2),and the La-Ce-Ox@ZrO_(2)exhibits the best catalytic *** adjusting the loading amount of La-Ce-O_(x),La-Ce-Ox@ZrO_(2) with different mass fractions was *** results show that the activity of 15%La-Ce-Ox@ZrO_(2)catalyst is the *** SO_(2)conversion is 100%,and the S yield and S selectivity are more than 96% at 350℃.According to the analysis results of H_(2)-TPR,CO_(2)-TPD and NH_(3)-TPD,ZrO_(2) as a support not only reduces the acidity of the catalyst,but also improves the weak alkaline sites of the catalyst,which is conducive to the adsorption and activation of SO2molecules at low *** incorporation of La and Ce increases the oxygen concentration adsorbed on the *** strong interaction between the support ZrO_(2) and the active component La-Ce-Oxis conducive to the electron transfer between the active component and the support,and improves the activity of the *** the 15%La-Ce-O_(x)@ZrO_(2),the main reaction intermediates are weakly adsorbed SO_(2)(SO_(3)^(2-)),bicoordinated CO_(3)^(2-),monodentate carbonate and CO in the gas ***,the catalytic reaction follows both L-H and E-R mechanisms.

关键词： La-Ce-Ox@ZrO_(2) Sulfur dioxide Carbon monoxide Resource utilization Catalytic mechanism Rare earths

Differential Game Based Link Resource Management for Next Generation Optical Network

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China Communications 2017年第9期14卷 72-79页

作者： haitao xu Yuqiong Cao Shengsong Yang Xianwei Zhou School of Computer and Communication Engineering University of Science and Technology Beijing China Academy of Information and Communications Technology

In this paper, we investigate the link resource management problem for optical networks, to achieve the resource cost during the information transmission. We use the differential game to formulate the cost control problem for the link resource management, to minimize the resource allocation cost functions, which dynamic behaviours are described by differential equations. Each link controls its transmission bandwidth based on the Nash equilibriums of the differential game. The effectiveness of the proposed model is given through numerical simulations.

关键词： optical network resource man-agement non-cooperative game differential Nash equilibrium