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Journal of Materials Science & Technology 2024年第3期170卷 200-211页

作者： Yanyan Zhao Xu fan Hongxing Zheng Enzhou Liu Jun fan Xuejun Wang College of Biology Pharmacy and Food Engineering Shangluo UniversityShangluo 726000China QinLing-Bashan Mountains Bioresources Comprehensive Development C.I.C. Shaanxi University of TechnologyHanzhong 723001China School of Chemical Engineering Northwest UniversityXi’an 710069China

Constructing of heterojunction was identified as a feasible way to improve photocatalytic activity of *** this work,a n-p type Bi_(2)WO_(6)/AgInS_(2)S-scheme heterojunction was successfully prepared for organic pollutants *** Bi_(2)WO_(6)/AgInS_(2)S-scheme heterojunction exhibited much higher pho-tocatalytic activity towards Rhodamine B(92.24%,expose to visible light for 60 min),norfloxacin(81.73%,expose to visible light for 90 min)and levofloxacin(87.46%,expose to visible light for 90 min)than pure Bi_(2)WO_(6)and pure AgInS_(2).Toxicity analysis indicated the low environmental toxicity of Rhodamine B degradation intermediates for Rye seeds and Sudangrass seeds germination and *** study displayed that AgInS_(2)and Bi_(2)WO_(6)work as the primary photocatalyst to form·O_(2)−and ·OH,*** improved photocatalytic activity of the Bi_(2)WO_(6)/AgInS_(2)S-scheme heterojunction was due to the im-proved light response range and intensified carrier separation ***,a S-scheme charge transfer mechanism including multiple charge transfer channels was *** work could provide an effective strategy for organic pollutants degradation in wastewater.

关键词： Photocatalysis S-scheme heterojunction AgInS_(2) Bi_(2)WO_(6) Toxicity experiments

Soliton resolution and asymptotic stability of N-solutions for the defocusing Kundu–Eckhaus equation with nonzero boundary conditions

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Communications in Theoretical Physics 2024年第1期76卷 1-6页

作者： Engui fan Yanxi Zhang School of Mathematical Sciences and Key Laboratory of Mathematics for Nonlinear Science Fudan UniversityShanghai200433China Tianjin Xinhua High School No.99 machang RoadTianjin300204China

In this paper,we address interesting soliton resolution,asymptotic stability of N-soliton solutions and the Painleve asymptotics for the Kundu-Eckhaus(KE)equation with nonzero boundary conditions iq_(t)+q_(xx)-2(l|q|^(2)-1)q+4β^(2)(lql^(4)-1)q+4iβ(lql^(2))_(x)q=0,q(x,0)=q_(0)(x)-±1,x→±∞.The key to proving these results is to establish the formulation of a Riemann-Hilbert(RH)problem associated with the above Cauchy problem and find its connection with the RH problem of the defocusing NLS *** the■-steepest descent method and the results of the defocusing NLS equation,we find complete leading order approximation formulas for the defocusing KE equation on the whole(x,t)half-plane including soliton resolution and asymptotic stability of N-soliton solutions in a solitonic region,Zakharov-Shabat asymptotics in a solitonless region and the Painlevéasymptotics in two transition regions.

关键词： defocusing Kundu-Eckhaus equation Riemann-Hilbert problems steepest descent method soliton resolution asymptotic stability Painleve transcendents

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林业工程造价控制的合理化模式探讨

南方农业 2022年第10期16卷 84-86页

作者：樊明玉国家林业和草原局产业发展规划院北京100010

实践表明,林业工程造价控制的合理化模式的构建需引入经济学、管理学方法。通过主题讨论,可从依托大数据分析提高预算编制的精确性、借助软件系统和经验科学制定技术系数、创新经费管理方法、建立共享型风险基金、加强审计等5个方面构... 详细信息

实践表明,林业工程造价控制的合理化模式的构建需引入经济学、管理学方法。通过主题讨论,可从依托大数据分析提高预算编制的精确性、借助软件系统和经验科学制定技术系数、创新经费管理方法、建立共享型风险基金、加强审计等5个方面构建林业工程造价控制的合理化模式。

关键词：林业工程造价控制合理化模式

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大尹格庄金矿盘区机械化采矿技术

中国矿山工程 2006年第5期35卷 20-22,30页

作者：樊明玉招金矿业股份有限公司大尹格庄金矿山东招远267415

介绍了盘区机械化高效采矿方法,通过采用数模分析方法确定和优化采场结构参数、无轨采矿设备配套作业、光面崩矿技术和多种手段联合维护采场项板、声发射定位预报系统动态跟踪监测顶板安全等综合配套工艺,实现了倾斜多变难采矿体的安全... 详细信息

介绍了盘区机械化高效采矿方法,通过采用数模分析方法确定和优化采场结构参数、无轨采矿设备配套作业、光面崩矿技术和多种手段联合维护采场项板、声发射定位预报系统动态跟踪监测顶板安全等综合配套工艺,实现了倾斜多变难采矿体的安全、高效、低成本开采。

关键词：厚大矿体盘区机械化无轨采矿

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采场顶板稳定性与采场顶板监测技术研究

有色金属（矿山部分） 2007年第1期59卷 8-11,42页

作者：樊明玉招金矿业股份有限公司大尹格庄金矿高级工程师山东招远265414

大尹格庄金矿床具有矿体厚大、埋藏深、品位低、形态多变的赋存特点,实践证明只有实行大规模、低成本开采,才能使矿山实现较好的经济效益。本文介绍了通过对采场顶板下沉位移监测、声发射定位预报系统动态跟踪监测顶板安全等综合配套工... 详细信息

大尹格庄金矿床具有矿体厚大、埋藏深、品位低、形态多变的赋存特点,实践证明只有实行大规模、低成本开采,才能使矿山实现较好的经济效益。本文介绍了通过对采场顶板下沉位移监测、声发射定位预报系统动态跟踪监测顶板安全等综合配套工艺,实现了采场的安全、高效、低成本开采,并在生产中取得十分显著的技术经济效果。

关键词：厚大矿体采场顶板水准测量动态监测

Existence of Global Solutions to the Nonlocal mKdV Equation on the Line

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Chinese Annals of Mathematics,Series B 2024年第4期45卷 497-528页

作者： Anran LIU Engui fan School of Mathematical Sciences Fudan UniversityShanghai 200433China

In this paper,the authors address the existence of global solutions to the Cauchy problem for the integrable nonlocal modified Korteweg-de Vries(nonlocal mKdV for short)equation under the initial data u0∈H^(3)(R)∩H^(1,1)(R)with the L^(1)(R)small-norm assumption.A Lipschitz L2-bijection map between potential and reflection coefficient is established by using inverse scattering method based on a Riemann-Hilbert problem associated with the Cauchy *** map from initial potential to reflection coefficient is obtained in direct scattering *** inverse scattering transform goes back to the map from scattering coefficient to potential by applying the reconstruction formula and Cauchy integral *** bijective relation naturally yields the existence of global solutions in a Sobolev space H^(3)(R)∩H^(1,1)(R)to the Cauchy problem.

关键词： Nonlocal mKdV equation Riemann-Hilbert problem Plemelj projection operator Lipschitz continuous Global solutions

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面向21世纪建筑设计的发展趋势

时代农机 2008年第3期 140-141页

作者：范明玉湖北省巴东县众智建筑设计咨询有限责任公司湖北巴东444300

未来的新世纪是一个注重生态,环保,追求人与自然科学整体协调发展的社会,生活在市里的人都渴望回归自然,希望更多地与大自然接触,但住宅建筑仅有绿色还不能说起具有生态性,住宅的生态型是以绿色为基础涵盖生态环保,可持续发展等多种理... 详细信息

未来的新世纪是一个注重生态,环保,追求人与自然科学整体协调发展的社会,生活在市里的人都渴望回归自然,希望更多地与大自然接触,但住宅建筑仅有绿色还不能说起具有生态性,住宅的生态型是以绿色为基础涵盖生态环保,可持续发展等多种理念。世界大型建筑的主流是生态建筑和智能建筑,我国目前正在建造和将要建造的大型综合建筑使用期限至少在50年以上,都是面对21世纪的,无论是在建筑艺术上,还是在设备上,都应有超前意识。随着生态意识的普及和可持续发展的深入人心,以我国目前的经济实力,建筑技术,科学技术的实际水平,建设有前途的大厦将作为我国提高综合国力的具体表现,将带动建筑业的迅猛发展。

关键词：建筑设计环境保护发展趋势

Experimental Study on Wire Melting Control Ability of Twin-Body Plasma Arc

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Chinese Journal of Mechanical Engineering 2024年第2期37卷 184-194页

作者： Ruiying Zhang fan Jiang Long Xue School of Mechanical Engineering Beijing Institute of Petrochemical TechnologyBeijing 102617China Beijing Academy of Safety Engineering and Technology Beijing 102617China College of Mechanical and Energy Engineering Beijing University of TechnologyBeijing 100124China

The twin-body plasma arc has the decoupling control ability of heat transfer and mass transfer,which is beneficial to shape and property control in wire arc additive *** this paper,with the wire feeding speed as a characteristic quantity,the wire melting control ability of twin-body plasma arc was studied by adjusting the current separation ratio(under the condition of a constant total current),the wire current/main current and the position of the wire in the arc axial *** results showed that under the premise that the total current remains unchanged(100 A),as the current separation ratio increased,the middle and minimum melting amounts increased approximately synchronously under the effect of anode effect power,the first melting mass range remained constant;the maximum melting amount increased twice as fast as the middle melting amount under the effect of the wire feeding speed,and the second melting mass range was *** the wire current increased,the anode effect power and the plasma arc power were both factors causing the increase in the wire melting amount;however,when the main current increased,the plasma arc power was the only factor causing the increase in the wire melting *** average wire melting increment caused by the anode effect power was approximately 2.7 times that caused by the plasma arc *** minimum melting amount was not affected by the wire-torch distance under any current separation ratio *** the current separation ratio increased and reached a threshold,the middle melting amount remained constant with increasing wire-torch *** the current separation ratio continued to increase and reached the next threshold,the maximum melting amount remained constant with the increasing wire-torch *** effect of the wire-torch distance on the wire melting amount reduced with the increase in the current separation *** this study,the decoupling mechanism and ability of this innovative

关键词： Twin-body plasma arc Melting control ability Melting amount Current separation ratio

Drogue detection for autonomous aerial refueling via hybrid pigeon-inspired optimized color opponent and saliency aggregation

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Chinese Journal of Aeronautics 2024年第5期37卷 27-38页

作者： Tongyan WU Haibin DUAN Yanming fan State Key Laboratory of Virtual Reality Technology and Systems School of Automation Science and Electrical EngineeringBeihang UniversityBeijing 100083China Virtual Reality Fundamental Research Laboratory Department of Mathematics and TheoriesPeng Cheng LaboratoryShenzhen 518000China AVIC Shenyang Aircraft Design and Research Institute Shenyang 110035China

Drogue detection is one of the challenging tasks in autonomous aerial refueling due to the requirement for accuracy and *** detection based on image intrinsic cues can achieve fast detection,but with poor *** studies reveal that optimization-based methods provide accurate and quick solutions for saliency *** paper presents a hybrid pigeon-inspired optimization method,the optimized color opponent,that aims to adjust the weight of color opponent channels to detect the drogue *** can optimize the weights in the selected aerial refueling scene offline,and the results are applied for drogue detection in the scene.A novel algorithm aggregated by the optimized color opponent and robust background detection is presented to provide better precision and *** results on benchmark datasets and aerial refueling images show that the proposed method successfully extracts the saliency region or drogue and exhibits superior performance against the other saliency detection methods with intrinsic *** algorithm designed in this paper is competent for the drogue detection task of autonomous aerial refueling.

关键词： Autonomous aerial refueling Drones Hybrid pigeon-inspired optimization Color opponent Saliency detection Saliency aggregation

Towards advanced zinc anodes by interfacial modification strategies for efficient aqueous zinc metal batteries

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Journal of Energy Chemistry 2024年第6期93卷 79-110,I0003页

作者： Changchun fan Weijia Meng Jiaye Ye Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology Ministry of EducationSchool of ChemistryBeihang UniversityBeijing 100191China Shaanxi Key Laboratory of New Transportation Energy and Automotive Energy Saving School of Energy and Electrical EngineeringChang’an UniversityXi’an 710061ShaanxiChina School of Chemistry and Physics Faculty of ScienceQueensland University of TechnologyBrisbaneQLD 4001Australia Centre for Materials Science Queensland University of TechnologyBrisbaneQLD 4001Australia

Developing sustainable and clean energy sources(e.g.,solar,wind,and tide energy)is essential to achieve the goal of carbon *** to the discontinuous and inco nsistent nature of common clean energy sources,high-performance energy storage technologies are a critical part of achieving this *** zinc metal batteries(AZMBs)with inherent safety,low cost,and competitive performance are regarded as one of the promising candidates for grid-scale energy ***,zinc metal anodes(ZMAs)with irreversible problems of dendrite growth,hydrogen evolution reaction,self-corrosio n,and other side reactions have seriously hindered the development and commercialization of *** increasing number of researchers are focusing on the stability of ZMAs,so assessing the effectiveness of existing research strategies is critical to the development of *** review aims to provide a comprehensive overview of the fundamentals and challenges of *** rch strategies for interfacial modification of ZMAs are systematically *** features of artificial interfacial coating and in-situ interfacial coating of ZMAs are compared and discussed in detail,as well as the effect of modified interfacial ZMA on the full-battery ***,perspectives are provided on the problems and challenges of *** review is expected to offer a constructive reference for the further development and commercialization of AZMBs.

关键词： Aqueous zinc metal batteries Zinc metal anode Interfacial modification Artificial interfacial coating In-situ interfacial coating