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大型沉降槽浮游物控制研究及应用

云南冶金 2024年第2期53卷 192-196页

作者：李俊福杨成龙张云峰杨敬赵粉云南文山铝业有限公司云南文山663000

针对拜耳法生产中大型沉降槽在分解工序上存在浮游物偏高的问题,投用了两台沉降槽,采取了进料出料方式改造、增加物料沉降时间、降低沉降槽耙机控制扭矩等措施,将分解工序浮游物由原来的5 g/L降低至1 g/L以下,回收氢氧化铝产生经济效益... 详细信息

针对拜耳法生产中大型沉降槽在分解工序上存在浮游物偏高的问题,投用了两台沉降槽,采取了进料出料方式改造、增加物料沉降时间、降低沉降槽耙机控制扭矩等措施,将分解工序浮游物由原来的5 g/L降低至1 g/L以下,回收氢氧化铝产生经济效益260万元/a。

关键词：拜耳法氧化铝大型沉降槽分解工序浮游物沉降效果

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基于农艺性状和产量指标的大豆净作筛选研究

大豆科技 2024年第4期 14-19,45页

作者：岳诚杨佳佳谢婉巴中市农林科学研究院四川巴中636000

文章以8个巴中地区当地大豆品种及4个引进大豆品种为研究对象,对其农艺性状和产量指标进行净作品种比较试验,筛选适宜巴中地区种植大豆品种。结果表明,引进大豆品种外观品质、百粒重及产量均优于当地品种。其中巴中地区当地大豆品种表... 详细信息

文章以8个巴中地区当地大豆品种及4个引进大豆品种为研究对象,对其农艺性状和产量指标进行净作品种比较试验,筛选适宜巴中地区种植大豆品种。结果表明,引进大豆品种外观品质、百粒重及产量均优于当地品种。其中巴中地区当地大豆品种表现为生育期短、百粒重小、有效荚粒比大、产量低;引进大豆品种表现为生育期长、颗粒饱满、百粒重大、产量高。当地大豆品种中,220302综合表现优良,有效荚粒比为0.61、百粒重为19.6 g,产量为1818.00 kg/hm^(2)。12个大豆品种中,引进品种齐黄34号综合表现优良,有效荚粒比为0.45,百粒重为24.23 g,产量为2034.75 kg/hm^(2),可替代当地大豆品种作早熟大豆在巴中地区推广种植。

关键词：大豆净作筛选品比试验巴中地区

Community Integrated Energy System Trading:A Comprehensive Review

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Journal of Modern Power Systems and Clean Energy 2022年第6期10卷 1445-1458页

作者： Lu Chen Qingshan Xu Yongbiao yang Hui gao Weixiao Xiong College of Automation&College of Artificial Intelligence Nanjing University of Posts and TelecommunicationsNanjing 210023China School of Electrical Engineering Southeast UniversityNanjing 210096China

Focused on life,consumption,and leisure,communities have been regarded as the basic unit of energy use in a city owing to rapid urbanization,whose energy use density continues to ***,community integrated energy systems(CIESs)in the rapid development stage have become embedded,small,and self-sufficient energy ecosystems within cities because of their environmental and economic *** face a competitive energy trading environment that comprises numerous entities and complicated *** paper presents an extensive review of various issues related to CIES ***,the concepts,types,and resources of CIESs are ***,the trading patterns and strategies of CIESs are reviewed from the four perspectives of the trading objects:community-to-peer(C2P),peer-to-peer(P2P),community-to-community(C2C),and community-to-grid(C2g).Third,a tri-layer trading framework and the features of CIESs that participate in combined multienergy markets are ***,the key issues in CIES trading are summarized.

关键词： Distributed generation community integrated energy system multi-energy market trading pattern

MIX-RS:A Multi-Indexing System Based on HDFS for Remote Sensing Data Storage

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Tsinghua Science and Technology 2022年第6期27卷 881-893页

作者： Jiashu Wu Jingpan Xiong Hao Dai yang Wang Chengzhong Xu Shenzhen Institute of Advanced Technology Chinese Academy of SciencesShenzhen 518055China University of Chinese Academy of Sciences Beijing 100049China guangdong-Hong Kong-Macao Joint Laboratory of Human-Machine Intelligence-Synergy Systems Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Faculty of Science and Technology University of MacaoMacao 999078China

A large volume of Remote Sensing(RS)data has been generated with the deployment of satellite *** data facilitate research in ecological monitoring,land management and desertification,*** characteristics of RS data(e.g.,enormous volume,large single-file size,and demanding requirement of fault tolerance)make the Hadoop Distributed File System(HDFS)an ideal choice for RS data storage as it is efficient,scalable,and equipped with a data replication mechanism for failure *** use RS data,one of the most important techniques is geospatial ***,the large data volume makes it time-consuming to efficiently construct and *** that most modern geospatial data centres are equipped with HDFS-based big data processing infrastructures,deploying multiple geospatial indices becomes natural to optimise the ***,because of the reliability introduced by high-quality hardware and the infrequently modified property of the RS data,the use of multi-indexing will not cause large ***,we design a framework called Multi-IndeXing-RS(MIX-RS)that unifies the multi-indexing mechanism on top of the HDFS with data replication enabled for both fault tolerance and geospatial indexing *** the fault tolerance provided by the HDFS,RS data are structurally stored inside for faster geospatial ***,multi-indexing enhances *** proposed technique naturally sits on top of the HDFS to form a holistic framework without incurring severe overhead or sophisticated system implementation *** MIX-RS framework is implemented and evaluated using real remote sensing data provided by the Chinese Academy of Sciences,demonstrating excellent geospatial indexing performance.

关键词： Remote Sensing(RS)data geospatial indexing multi-indexing mechanism Hadoop Distributed File System(HDFS) Multi-IndeXing-RS(MIX-RS)

Simultaneous wireless information and power transfer with fixed and adaptive modulation

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Digital Communications and Networks 2022年第3期8卷 303-313页

作者： Jie Hu guangming Liang Qin Yu Kun yang xiaofe.g Lu yangtze Delta Region Institute(Huzhou)&School of Information and Communication Engineering University of Electronic Science and Technology of ChinaHuzhou313001China School of Information and Communication Engineering University of Electronic Science and Technology of ChinaChengdu611731China State Key Laboratory of Integrated Services Networks Xidian UniversityXi'an710071China

Activating Wireless Power Transfer (WPT) in Radio-Frequency (RF) to provide on-demand energy supply to widely deployed Internet of Everything devices is a key to the next-generation energy self-sustainable 6g network. However, Simultaneous Wireless Information and Power Transfer (SWIPT) in the same RF bands is challenging. The majority of previous studies compared SWIPT performance to gaussian signaling with an infinite alphabet, which is impossible to implement in any realistic communication system. In contrast, we study the SWIPT system in a well-known Nakagami-m wireless fading channel using practical modulation techniques with finite alphabet. The attainable rate-energy-reliability tradeoff and the corresponding rationale are revealed for fixed modulation schemes. Furthermore, an adaptive modulation-based transceiver is provided for further expanding the attainable rate-energy-reliability region based on various SWIPT performances of different modulation schemes. The modulation switching thresholds and transmit power allocation at the SWIPT transmitter and the power splitting ratios at the SWIPT receiver are jointly optimized to maximize the attainable spectrum efficiency of wireless information transfer while satisfying the WPT requirement and the instantaneous and average BER constraints. Numerical results demonstrate the SWIPT performance of various fixed modulation schemes in different fading conditions. The advantage of the adaptive modulation-based SWIPT transceiver is validated.

关键词： Simultaneous wireless information and power transfer(SWIPT) Fixed/adaptive modulation Rate-energy-reliability trade-off Transceiver design Energy self-sustainability

Solid-gas carbonate formation during dust events on Mars

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National Science Review 2023年第4期10卷 10-12页

作者： Wenshuo Mao Xiaohui Fu Zhongchen Wu Jiang Zhang Zongcheng Ling yang Liu Yu-Yan Sara Zhao Hitesh g.Changela Yuheng Ni Fabao Yan Yongliao Zou Shandong Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment School of Space Science and Physics Institute of Space SciencesShandong University CAS Center for Excellence in Comparative Planetology State Key Laboratory of Space Weather National Space Science CenterChinese Academy of Sciences International Center for Planetary Science College of Earth Science Chengdu University of Technology J'Heyrovski Institute of Physical Chemistry Czech Academy of Sciences Department of Earth & Planetary Science University of New Mexico School of Mechanical Electrical & Information EngineeringShandong University

For half a century, Mars missions have gathered abundant geological evidence for a wet, warm climate in the early history of Mars more than 3 billion years ago, including various fluvial landforms and exposed aqueous alteration minerals. It was supposed that Mars once had a dense, CO2-rich atmosphere. However,present-day Mars has a much thinner atmosphere dominated by CO2.

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基于组合赋权云模型的砖混结构自建房安全评估

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土木工程与管理学报 2024年第3期41卷 103-112页

作者：杨沫涵陶忠陶燕吴磊昆明理工大学公共安全与应急管理学院云南昆明650500 昆明理工大学建筑工程学院云南昆明650500

为准确实现对砖混结构自建房安全状态的科学评估,考虑到结构体系的复杂性和评估指标的模糊性,本文提出一种基于组合赋权云模型的安全评估方法。首先,从地基基础、结构承载力、抗震构造措施、结构外观质量、建筑材料强度、结构相关尺寸... 详细信息

为准确实现对砖混结构自建房安全状态的科学评估,考虑到结构体系的复杂性和评估指标的模糊性,本文提出一种基于组合赋权云模型的安全评估方法。首先,从地基基础、结构承载力、抗震构造措施、结构外观质量、建筑材料强度、结构相关尺寸、围护结构7个方面构建砖混结构自建房安全评估指标体系,并根据标准规范给出评估指标的衡量准则。其次,选用g1法和熵权法主客观综合确定指标权重,并构建砖混结构自建房安全评估云模型。最后,应用该模型对云南省罗平县某砖混结构自建房进行安全评估,得到的评估结果与实际评定结果一致。研究表明:所构建的组合赋权云模型较为真实全面地反映砖混结构自建房安全状态,可为我国砖混结构自建房安全鉴定与隐患排查工作提供参考。

关键词： g1法熵权法云模型砖混结构自建房安全评估

环境污染物三甲基四硝基苯酚上调中性粒细胞CD64引发重症哮喘的作用研究

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齐齐哈尔医学院学报 2024年第11期45卷 1001-1006页

作者：姚文楷许涛杨礼腾安徽理工大学医学院安徽淮南232000 南方医科大学第七附属医院广东佛山528000

目的利用卵白蛋白(OVA)和环境污染物三甲基四硝基苯酚(MNP)建立小鼠哮喘模型,探讨MNP引发小鼠重症哮喘的作用。方法将24只小鼠随机分为Control组、MNP组、OVA+Alum组、OVA+MNP组四组,每组各6只。通过3次皮下致敏(Control组100μl PBS、... 详细信息

目的利用卵白蛋白(OVA)和环境污染物三甲基四硝基苯酚(MNP)建立小鼠哮喘模型,探讨MNP引发小鼠重症哮喘的作用。方法将24只小鼠随机分为Control组、MNP组、OVA+Alum组、OVA+MNP组四组,每组各6只。通过3次皮下致敏(Control组100μl PBS、MNP组100μg MNP、OVA+Alum组100μg OVA+2 mg Alum,OVA+MNP组100μg OVA+100μg MNP)和连续7 d的滴鼻激发(20μg OVA),以HE染色、PAS染色、Elisa等作为小鼠重症哮喘的评价指标。流式细胞术,Western Blot、RT-qPCR作为中性粒细胞CD64表达上调的评价指标。结果与Control组比较,MNP+OVA组小鼠血清OVA特异性IgE和Igg1水平升高,肺泡灌洗液中IL-4、IL-5、IL-13含量升高,中性粒细胞表达上调,CD64蛋白表达水平和mRNA表达水平也明显上调,差异均具有统计学意义(P<0.05)。结论MNP可以上调中性粒细胞CD64的表达引发小鼠重症哮喘。

关键词：三甲基四硝基苯酚中性粒细胞CD64 重症哮喘

Insight to defects regulation on sugarcane waste-derived hard carbon anode for sodium-ion batteries

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Journal of Energy Chemistry 2021年第4期30卷 499-508页

作者： Kaihua Yu Xinran Wang Haoyi yang Ying Bai Chuan Wu Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081China

A great deal of attention has been paid on developing plant-derived hard carbon(HC)materials as anodes for sodium-ion batteries(SIBs).So far,the regulation of HC has been handicapped by the well-known ambiguity of Na^(+)storage mechanism,which fails to differentiate the Na^(+)adsorption and Na^(+)insertion,and their relationship with the size of d-interlayer spacing and structural ***,bagassederived HC materials have been synthesized through a combination of pyrolysis treatment and microwave *** combined protocol has enabled to synergistically control the d-interlayer spacing and ***,the microwave activation has created slit pores into HC and these pores allow for an enhanced Na^(+)adsorption with an increased sloping capacity,establishing a strong correlation between the porosity and sloping ***,the pyrolysis treatment promotes the graphitization and it contributes to an intensified Na^(+)insertion with an increased plateau capacity,proving that the plateau capacity is largely contributed by the Na^(+)insertion between ***,the structural regulation of bagasse-derived HC has provided a proof on positively explaining the Na^(+)storage with HC *** structural changes in the pore size distribution,specific surface area,d-interlayer spacing,and the electrochemical properties have been comprehensively characterized,all supporting our understanding of Na^(+)storage *** a result,the HC sample with an optimized d-interlayer spacing and porosity has delivered an improved reversible capacity of 323.6 m Ah g^(-1) at 50 m A g^(-1).This work provides an understanding of Na^(+)storage mechanism and insights on enhancing the sloping/plateau capacity by rationally regulating the graphitization and porosity of HC materials for advanced SIBs.

关键词： Hard carbon Sodium-ion batteries Microwave activation Sodium storage mechanism