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基于BPSO-IRS算法的智能值守机器人资源调度方法研究

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机电工程技术 2024年第3期53卷 176-180页

作者：江成陈佳骏张彦欢韩云岩王宝国网上海市电力公司奉贤供电公司上海201400 北京瑞盈智拓科技发展有限公司北京102299 上海交通大学机械与动力工程学院上海200240

针对电网区域内多配电站的巡检,单一值守机器人无法满足区域协调能力且会造成众多资源的浪费,云机器人可以实现资源共享提升巡检效率,以优化系统负载均衡、各类资源利用率均衡和系统能耗为目标,提出了云架构的资源调度系统。搭建资源调... 详细信息

针对电网区域内多配电站的巡检,单一值守机器人无法满足区域协调能力且会造成众多资源的浪费,云机器人可以实现资源共享提升巡检效率,以优化系统负载均衡、各类资源利用率均衡和系统能耗为目标,提出了云架构的资源调度系统。搭建资源调度数学模型,结合物理机的几种重要参数建立面向不同目标的数学模型。创建两种不同类型的RVM服务虚拟机:初始放置与增量放置。在云端初始创建服务虚拟机时产生的资源分配问题,可以借鉴PSO算法采用BPSO算法进行放置;在工作环境中对于虚拟机数量不足需要增加虚拟机个数时的分配问题,采用IRS算法进行分配。最后利用设计仿真实验,对比OpenStack原生的LFF调度算法,对BPSO-IRS算法优越性进行验证。

关键词：机器人配电站运维云调度

甘肃龙首山芨岭铀矿床矿化特征、蚀变矿化机制及控矿构造研究

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矿产与地质 2024年第1期38卷 42-52页

作者：王伟王江波刘涛韩栋昱何佳军李涛核工业二〇三研究所陕西咸阳712000

芨岭铀矿床为甘肃省龙首山分布的典型铀矿床,对其进行深入研究有利于指导区内其他地区的找矿勘查工作。本文结合区内多年勘查工作取得的研究成果和资料,系统总结了芨岭矿床的铀矿化特征,在此基础上,对分带岩矿石的岩石地球化学以及控矿... 详细信息

芨岭铀矿床为甘肃省龙首山分布的典型铀矿床,对其进行深入研究有利于指导区内其他地区的找矿勘查工作。本文结合区内多年勘查工作取得的研究成果和资料,系统总结了芨岭矿床的铀矿化特征,在此基础上,对分带岩矿石的岩石地球化学以及控矿构造进行了综合分析,以探讨成矿流体的蚀变矿化机制与构造控矿机制。研究结果表明,芨岭矿床赋存于受马路沟断裂控制的岩体接触带附近,从岩体到矿体具有从斑状花岗岩-无矿化钠交代岩-异常钠交代岩-矿化钠交代岩-含矿化钠交代岩的分带现象,矿石发育钠长石化-赤铁矿化-碳酸盐化-绿泥石化为主的蚀变组合,成矿作用主要经历了两期热液蚀变,即早期的岩浆-热液自交代蚀变矿化与晚期叠加的外循环流体成矿富集蚀变,并分别以钠长石化和赤铁矿化为典型蚀变特征。矿体在空间上受到马路沟断裂及其次级断裂的控制作用,针对马路沟断裂的复杂性,通过大量深部钻孔查证,目前认为马路沟断裂受到古元古界白家咀子组大理岩残留体的影响分为两条大致平行的F 101和F 105断裂,两条断裂在深部残留体尖灭部位合二为一条陡倾断裂。综合分析认为马路沟断裂的次级断裂为赋矿断裂构造,主、次断裂构造夹持区是铀成矿的最有利部位,也是下一步找矿勘查工作的重点靶区。

关键词：芨岭铀矿床钠交代马路沟断裂龙首山地区

The construction of pseudo-Janus silica/surfactant assembly and their application to stabilize Pickering emulsions and enhance oil recovery

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Frontiers of Chemical Science and Engineering 2022年第7期16卷 1101-1113页

作者： han Jia jiajun Dai Tingyi Wang Yingbiao Xu Lingyu Zhang Jianan Wang Lin Song Kaihe Lv Dexin Liu Pan Huang Shandong Key Laboratory of Oilfield Chemistry School of Petroleum EngineeringChina University of Petroleum(East China)Qingdao 266580China Key Laboratory of Unconventional Oil&Gas Development(China University of Petroleum(East China)) Ministry of EducationQingdao 266580China Technology Inspection Center Shengli Oilfield CompanySINOPECDongying 257000China Department of Chemical and Materials Engineering University of Alberta EdmontonAB T6G 1H9Canada

Nanoparticles with high surface energy and chemical activity have drawn substantial attention in petroleum industry. Recently, Janus nanoparticles exhibited tremendous potential in enhanced oil recovery (EOR) due to their asymmetric structures and properties. In this study, a series of amphiphilic pseudo-Janus@OTAB (PJ@C18) nanoparticles with different concentrations of stearyltrimethylammoium bromide (OTAB) were successfully fabricated. The structures and properties of PJ@C18 were characterized by Fourier transform infrared spectroscopy and ζ-potential measurements. Based on the emulsification experimental results, the interaction models and the self-assembly behavior between hydrophilic nanoparticles (SiO_(2)@NH_(2)) and OTAB molecules at the oil/water interface were proposed, which was further confirmed via the measurements of the contact angle and dynamic interfacial tension. Interestingly, it was found that the change of pH value from 7.5 to 4.0 caused the type reversal of the PJ@C18-1000 stabilized Pickering emulsions. Furthermore, the PJ@C18-1000 stabilized Pickering emulsion system with excellent salt and temperature tolerances (10000 mg∙L^(–1), 90℃) significantly improved the oil recovery in the single-tube (more than 17%) and double-tube (more than 25%) sand pack model flooding tests. The findings of this study could help to better understand the construction mechanism of pseudo-Janus silica/surfactant assembly and the potential application of PJ@C18-1000 stabilized Pickering emulsions for EOR.

关键词： Janus nanoparticles surfactant double phase inversion self-assembly enhanced oil recovery

A bifunctional perovskite oxide catalyst:The triggered oxygen reduction/evolution electrocatalysis by moderated Mn-Ni co-doping

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Journal of Energy Chemistry 2021年第3期30卷 217-224页

作者： Jia Sun Lei Du Baoyu Sun Guokang han Yulin Ma jiajun Wang Hua Huo Pengjian Zuo Chunyu Du Geping Yin School of Chemistry and Chemical Engineering Harbin Institute of TechnologyHarbin 150001HeilongjiangChina

ABO_(3)-type perovskite oxides(e.g.,LaCoO_(3))with flexible and adjustable A-and B-sites are ideal model catalysts to unravel the relationship between the electronic structure and electrocatalytic activity(e.g.,oxygen reduction/evolution reactions,ORR/OER).It has been well understood in our recent work that the secondary metal dopant at B-site(e.g.,Mn in LaMn_(x)Co_(1-x)O_(3))can regulate the electronic structure and improve the ORR/OER *** this work,the Mn-Ni pairs are employed as the dual dopant in LaMn_(x)Ni_(y)Co_(z)O_(3)(x+y+z=1)catalysts toward bifunctional ORR and *** structure-property relationships between the triple metal B-site(Mn,Ni and Co)and the electrochemical performance are particularly *** to the individual Mn doping(e.g.,LaMnCoO3(Mn:Co=1:3)catalyst),the dual Mn-Ni doping significantly improves the ORR mass activity@0.8 V by 1.54 times;meanwhile,the OER overpotential@10 mA cm^(-2) is reduced from 420 to 370 mV,and the OER current density at 1.55 V is increased by 2.43 ***,the potential gap between EDRR@-1 mA cm^(-2) and EDER@10 mA cm^(-2) is achieved as only 0.76 V by using the optimal LaMn_(x)Ni_(y)Co_(z)O_(3)(x:y:z=1:2:3)*** is revealed that the dual Mn-Ni dopant efficiently optimizes electron structures of the LaMnNiCoO_(3)(1:2:3)catalyst,which not only decreases the e_(g) orbital electron number,but also modulates the O 2 p-band closer to the Femi level,accounting for the enhanced bifunctional activity.

关键词： Perovskite oxide Bifunctional catalyst Mn-Ni dopant Oxygen reduction reaction Oxygen evolution reaction

Promoting the charge separation and photoelectrocatalytic water reduction kinetics of Cu_(2)O nanowires via decorating dual-cocatalysts

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Journal of Materials Science & Technology 2021年第3期62卷 119-127页

作者： Mengmeng Zhang jiajun Wang Yang Wang Jinfeng Zhang Xiaopeng han Yanan Chen Yuesheng Wang Zaghib Karim Wenbin Hu Yida Deng School of Materials Science and Engineering Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of EducationTianjin UniversityTianjin300072China Center of Excellence in Transformation Electrification and Energy Storage Hydro-Québec1806 Boulevard Lionel-BouletVarennesQuébecJ3X 1S1Canada Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou350207China

Developing high activity and low-cost materials to produce hydrogen by the sustainable way of photoelectrochemical is key to social *** abundance and inexpensive Cu_(2)O has been received increasing research as its suitable energy level for photocatalytic water ***,the fast charge recombination rate and the sluggish catalytic kinetics are the huge challenges facing the Cu_(2)O ***,the highly reactive Cu_(2)O@C-MoS_(2)photocathode is constructed by depositing dual-cocatalysts of the carbon layer and MoS_(2)nanosheets on Cu_(2)O nanowires to realize efficient water *** impressive carrier concentration of 6.59×10^(23)cm^(-3)is received,which is 2.78 times of the bare Cu_(2)O,resulting in remarkable enhancement in photocurrent density of 3.34 times for the Cu_(2)O@CMoS_(2)***,the applied bias photon-to-current conversion efficiency of the bare Cu_(2)O enhanced 4.5 times from 0.16%to 0.72%in the Cu_(2)O@C-MoS_(2)*** analysis shows that the Cu_(2)O as light absorber,the carbon layer as electron transfer promoter,and MoS_(2)nanosheets as catalytic sites,thus facilitating chrage separation and enhancing catalytic *** system paves a feasible strategy for designing other photoelectrodes to realize efficient charge separation and high catalytic activity.

关键词： Photoelectrochemical water reduction Cu_(2)O nanowires Dual-cocatalysts modification Photocathode Charge separation

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海岛缺齿鼹中国内地分布新纪录

兽类学报 2024年第3期44卷 370-376页

作者：姚洪凤胡江晓韩吉学汤若晖周佳俊何锴张余才储俊赵凯陈中正皖江流域退化生态系统的恢复与重建省部共建协同创新中心安徽师范大学生态与环境学院芜湖241002 浙江省森林资源监测中心杭州310020 广州大学生命科学学院华南生物多样性中心广州510006 安徽鹞落坪国家级自然保护区管理委员会安庆246600 安庆师范大学生命科学学院安庆246011

缺齿鼹属(Mogera)隶属于哺乳纲(Mammalia)劳亚食虫目(Eulipotyphla)鼹科(Talpidae),是一类严格适应地下生活的“真鼹”,常栖息于林间草地或邻近农地中。缺齿鼹外形上与鼹属(Talpa)物种十分相似,其齿式为:3.***.4.3/2.***.4.3=42(Ziegler,1971),下颌比鼹属物种缺少一个门齿,故而得名缺齿鼹。当前分类体系认为缺齿鼹属共包含9个物种,其中5种在中国有分布(魏辅文,2021):大缺齿鼹(*** Nehring,1891)、海岛缺齿鼹(*** Swinhoe,1862)、台湾缺齿鼹(*** Kawada et al.,2007)、华南缺齿鼹(*** Thomas,1907)和钓鱼岛鼹(***‐ai Abe et al.,1991)。华南缺齿鼹和海岛缺齿鼹的分类和分布仍存较大争议。

关键词：缺齿鼹属海岛缺齿鼹中国内地安徽省新纪录

Recent progresses of micro-nanostructured transition metal compound-based electrocatalysts for energy conversion technologies

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Science China Materials 2021年第1期64卷 1-26页

作者： jiajun Wang Zhao Zhang Jia Ding Cheng Zhong Yida Deng Xiaopeng han Wenbin Hu School of Materials Science and Engineering Tianjin Key Laboratory of Composite and Functional MaterialsKey Laboratory of Advanced Ceramics and Machining Technology(Ministry of Education)Tianjin UniversityTianjin300072China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou350207China

The rapid consumption of fossil fuels has caused increasingly climatic issues and energy crisis,which leads to the urgent demand for developing sustainable and clean *** play a key role in the development of electrochemical energy conversion and storage ***,developing efficient and cost-effective catalysts is important for the large-scale application of these *** various electrocatalyst candidates,earth abundant transition metal compound(TMC)-based electrocatalysts are being widely and rapidly studied owing to their high electrocatalytic *** paper reviews the recent and representative advances in efficient TMC-based electrocatalysts(i.e.,oxides,sulfides,selenides,phosphides,carbides and nitrides)for energy electrocatalytic reactions,including hydrogen evolution reaction(HER),oxygen evolution reaction(OER)and oxygen reduction reaction(ORR).Different compounds with different applications are summarized and the relative mechanisms are also *** strategies for developing earth-abundant and low-cost TMC-based electrocatalysts are *** the end,the current challenges and future perspectives in the development of TMC research are briefly *** review also provides the latest advance and outlines the frontiers in TMC-based electrocatalysts,which should provide inspirations for the further development of low-cost and high-efficiency catalysts for sustainable clean energy technologies.

关键词： energy electrocatalysis transition metal compounds HER OER ORR

音频大地电磁法在黔西南金矿区域地电特征研究中的应用

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工程地球物理学报 2024年第4期21卷 611-620页

作者：王家俊杨炳南朱大伟韩姚飞张德实自然资源部基岩区矿产资源勘查工程技术创新中心贵州贵阳550081 贵州省地质矿产勘查开发局一〇三地质大队贵州铜仁554300 贵州大学资源与环境工程学院贵州贵阳550025

黔西南地区是我国重要的卡林型金矿分布区,区内台地和盆地沉积格局交替频繁,金矿成矿主要受褶皱和断裂构造控制,查明该区地层分布及构造展布特征对于该区金矿找矿具有重要意义。本文以黔西南金矿区为研究靶区,分别进行了音频大地电磁法(... 详细信息

黔西南地区是我国重要的卡林型金矿分布区,区内台地和盆地沉积格局交替频繁,金矿成矿主要受褶皱和断裂构造控制,查明该区地层分布及构造展布特征对于该区金矿找矿具有重要意义。本文以黔西南金矿区为研究靶区,分别进行了音频大地电磁法(Audio Magnetotelluric Method,AMT)在台地相、盆地相不同模式的正反演计算,基于优选的反演模式在区内实地开展了音频大地电磁法的应用研究,取得主要结果与认识:①台地相区地层电性差异明显,基于TE&TM联合反演模式的AMT能有效区分地层、查明断裂构造空间展布特征;②受上部厚低阻层影响,AMT在盆地相区地层区分性弱,基于TM反演模式的AMT能清晰反映褶皱、断裂构造空间展布特征;③黔西南金矿区域地质条件复杂,因地制宜的优选AMT反演模式是实现该区地电结构精细刻画的关键。研究成果与区内实测断层、钻探工程等验证结果吻合较好,充分体现了AMT在该区查明地层分布及构造展布特征的有效性;另一方面进一步明确了黔西南金矿区域台地相、盆地相AMT反演模式,对后人利用AMT在该区及相近地区实现金矿找矿突破具有重要的参考价值。

关键词：音频大地电磁法反演模式地电特征黔西南金矿区

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基于灰色时间序列随机组合模型在地下水埋深预测中的应用——以沧州市为例

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河北水利电力学院学报 2024年第1期34卷 54-60页

作者：韩超刘晓延刘佳峻贺云鹏温永福刘娟河北水利电力学院水利工程系河北省沧州市061001 沧州水利勘测规划设计院有限公司河北省沧州市061000 扬州市勘测设计研究院有限公司江苏省扬州市225000 河北省南运河河务中心河北省沧州市061001

地下水资源是支撑区域粮食生产的重要基础资源,为解决河北省浅层地下水水位持续下降问题,以河北省典型平原区沧州市为例,依据2007-2022年水位监测井观测数据,通过MATLAB软件结合灰色时间序列原理搭建地下水埋深灰色时间序列随机组合模型... 详细信息

地下水资源是支撑区域粮食生产的重要基础资源,为解决河北省浅层地下水水位持续下降问题,以河北省典型平原区沧州市为例,依据2007-2022年水位监测井观测数据,通过MATLAB软件结合灰色时间序列原理搭建地下水埋深灰色时间序列随机组合模型,揭示沧州市地下水埋深变化规律,为沧州市乃至河北省平原区地下水资源可持续开发利用提供依据。通过相关模拟方法证实该模型简洁实用,精度较高。研究结果表明:未来3年(2023-2025年),如果按照目前的发展趋势,沧州市地下水位会继续下降,平均年降幅为1.45 m左右。

关键词：沧州市地下水埋深预测时间序列自相关