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Dynamic Installation Behaviors of A New Hybrid Plate Anchor in Layered Marine Clay

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China Ocean Engineering 2021年第5期35卷 736-749页

作者： LAI Ying ZHU Bin CHEN Chuan huang yun-han MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering College of Civil Engineering and ArchitectureZhejiang UniversityHangzhou 310058China Jiangsu Ocean University Lianyungang 222005China

Layered soil profiles create challenges for foundation installation and detrimentally affect the foundation *** research explored the free-fall penetration behavior of a new dynamically installed plate anchor,the Flying Wing Anchor?,in layered soil *** new concept anchor combines the advantages of low-cost installation of torpedo piles and high efficiency of plate *** is initially installed through free-fall like a torpedo pile,and followed by drag embedment like a plate *** methodology is to perform free-fall penetration tests with a model anchor in a variety of test beds containing marine clays with different profiles of undrained shear strength versus depth.A calibrated prediction model accounting for the effects of strain-rate and stiff layer produces results similar to those from the model *** design curves were developed based on the calibrated analytical model,and are valuable to estimate the impact velocity thresholds of prototype anchor to penetrate through stiff *** free-fall penetration tests indicated that the penetration ability of FWA?increases with the increased impact *** new dynamically embedded plate anchor can penetrate through the stiff layers that would cause problems for the conventional plate anchor,such as the drag embedded anchor,plowing on the top of stiff layer instead of breaking into ***,the new dynamically embedded plate anchor can provide a possible solution for layered soil profiles in deep water.

关键词： layered soils penetration hybrid anchors dynamically installed anchors plate anchors

Preparation and Properties of Modified Sol-Gel Sensing Membrane for Fiber Optic Oxygen Sensor

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Journal of Wuhan University of Technology(Materials Science) 2004年第1期19卷 19-22页

作者：黄俊 Wuhan University of Technology

Modified sensing membranes based on fluorescence quenching were prepared by the sol-gel method,using formamide as the drying control chemical additive,tetraethoxysilane as the main material,Ru(phen) 3Cl 2 as the *** membrane with the optimum thickness of 20-50μm is uniform and crack-free,in which the indicator has a very small leaking *** membrane is immersed in water for 50h,the membrane sensing parameter M decreases by less than 5%.The fiber optic oxygen sensor with the sensing membrane has a detection limit of 5×10 -6M(ppm),a response time of less than 30s,excellent reproducibility and stability.

关键词： sol-gel sensing membrane drying control chemical additive fiber optic oxygen sensor

The detection,extraction and parameter estimation of extreme-mass-ratio inspirals with deep learning

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Science China(Physics,Mechanics & Astronomy) 2025年第1期68卷 82-92页

作者： Qianyun yun Wen-Biao han Yi-Yang Guo He Wang Minghui Du hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310124China Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China Taiji Laboratory for Gravitational Wave Universe(Beijing/hangzhou) University of Chinese Academy of SciencesBeijing 100049China Lanzhou Center for Theoretical Physics Key Laboratory of Theoretical Physics of Gansu ProvinceKey Laboratory of Quantum Theory and Applications of MoELanzhou UniversityLanzhou 730000China Institute of Theoretical Physics&Research Center of Gravitation Lanzhou UniversityLanzhou 730000China International Centre for Theoretical Physics Asia-Pacific(ICTP-AP) University of Chinese Academy of Sciences(UCAS)Beijing 100049China Center for Gravitational Wave Experiment National Microgravity LaboratoryInstitute of MechanicsChinese Academy of SciencesBeijing 100190China

One of the primary goals of space-borne gravitational wave detectors is to detect and analyze extreme-mass-ratio inspirals(EM-RIs).This task is particularly challenging because EMRI signals are complex,lengthy,and *** this work,we introduce a 2-layer convolutional neural network(CNN)approach to detect EMRI signals for space-borne detectors,achieving a true positive rate(TPR)of 96.9%at a 1%false positive rate(FPR)for signal-to-noise ratio(SNR)from 50 to ***,the key intrinsic parameters of EMRIs such as the mass,spin of the supermassive black hole(SMBH)and the initial eccentricity of the orbit can also be inferred directly by employing a neural *** mass and spin of the SMBH can be determined at 99%and 92%*** will greatly reduce the parameter spaces and computing cost for the following Bayesian parameter *** model also has a low dependency on the accuracy of the waveform *** study underscores the potential of deep learning methods in EMRI data analysis,enabling the rapid detection of EMRI signals and efficient parameter estimation.

关键词： gravitational wave EMRIs deep-learing

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考虑锚胫作用下拖曳锚在成层土中的嵌入机制

岩土力学 2024年第5期45卷 1495-1504页

作者：熊树森黄蕴晗赖莹浙江大学超重力研究中心浙江杭州310058 江苏海洋大学土木与港海工程学院江苏连云港222002 浙江大学建筑工程学院浙江杭州310058

深水系泊系统及其系泊基础的开发已成为发展清洁能源“海上风电”项目的关键课题。拖曳锚由于其较大的承载力和易安装等诸多优势而具有较好的发展前景。基于极限塑性上限分析法,建立了考虑锚胫作用的拖曳锚在成层土中的嵌入轨迹、姿态... 详细信息

深水系泊系统及其系泊基础的开发已成为发展清洁能源“海上风电”项目的关键课题。拖曳锚由于其较大的承载力和易安装等诸多优势而具有较好的发展前景。基于极限塑性上限分析法,建立了考虑锚胫作用的拖曳锚在成层土中的嵌入轨迹、姿态以及承载力预测模型。利用已有模型试验对本模型进行验证,结果表明:考虑锚胫作用模型轨迹预测误差控制在13.5%,轨迹和角度预测误差相比于未考虑锚胫作用的模型分别降低了78.32%和36.9%。硬土层的强度、厚度和深度共同制约着拖曳锚的嵌入能力。首先,强度比影响最明显,强度比越大,嵌入深度越小,直至无法穿透硬土层;其次,是深度影响,深度越大,承载力越大。能够穿透硬土层的条件下深度对轨迹和角度影响不明显,不能够穿透硬土层条件下深度越大,嵌入深度越大,最终角度越小;最后,是厚度影响,硬土层厚度越大,嵌入过程中承载力越大。

关键词：拖曳锚预测模型成层土锚胫作用轨迹

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用冲天炉稳定生产优质球墨铸铁的经验

热加工工艺 2000年第3期29卷 60-61页

作者：黄汉云株洲工学院湖南株洲412008

尽管利用冲天炉生产球铁,热效率低,铁水成分波动大,废品率高,但作者在实际指导球铁生产中,认为只要严格遵守以下原则,就能保证长期稳定地生产出优质的球墨铸铁.

关键词：冲天炉球墨铸铁熔炼

Coordinated Control Strategy of New Energy Power Generation System with Hybrid Energy Storage Unit

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Energy Engineering 2025年第1期122卷 167-184页

作者： yun Zhang Zifen han Biao Tian Ning Chen Yi Fan School of Mechano-Electronic Engineering Xidian UniversityXi’an710071China Electric Power Control Center State Grid Gansu Electric Power CompanyLanzhou730030China Electric Power Control Center State Grid Gansu Electric Power Company Zhangye Power Supply BranchZhangye734000China

The new energy power generation is becoming increasingly important in the power *** as photovoltaic power generation has become a research hotspot,however,due to the characteristics of light radiation changes,photovoltaic power generation is unstable and random,resulting in a low utilization rate and directly affecting the stability of the power *** solve this problem,this paper proposes a coordinated control strategy for a newenergy power generation system with a hybrid energy storage unit based on the lithium iron phosphate-supercapacitor hybrid energy storage ***,the variational mode decomposition algorithm is used to separate the high and low frequencies of the power signal,which is conducive to the rapid and accurate suppression of the power fluctuation of the energy storage ***,the fuzzy control algorithm is introduced to balance the power between energy *** this paper,the actual data is used for simulation,and the simulation results show that the strategy realizes the effective suppression of the bus voltage fluctuation and the accurate control of the internal state of the energy storage unit,effectively avoiding problems such as overshoot and over-discharge,and can significantly improve the stability of the photovoltaic power generation systemand the stability of the Direct Current *** is of great significance to promote the development of collaborative control technology for photovoltaic hybrid energy storage units.

关键词： Photovoltaic power suppression hybrid energy storage unit variationalmodal decomposition fuzzy control power distribution control

CMOS image sensor with optimal video sampling scheme

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Science China(Information Sciences) 2012年第6期55卷 1429-1435页

作者： GUAN Ning,ZhanG Xu,LIU Bo,DONG Zan,huang BeiJu,GUI yun,han JianQiang,WANG Yuan,ZhanG Zanyun & CHEN HongDa State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Science,Beijing 100083,China State Key Laboratory on Integrated Optoelectronics Institute of Semiconductors Chinese Academy of Science Beijing China

Time-varying illumination on the focal plane is a three-dimensional *** sam-pling theory proves that the temporal resolution can be optimally improved by a factor of 2～(1/2) while the spatial resolution is reserved by changing the sampling *** on the theory,a prototype multi-field CMOS image sensor (CIS) is designed for a 0.35-μm 2P4M CMOS *** pixels in 4×4-pixel clusters are assembled into 16 fields over the whole *** pins (resets and shutters) of pixels are separated which provides the ability of sampling the illumination with the optimal sampling scheme.

关键词： CMOS image sensors sampling methods deinterlacing high speed photography selective readout

Total synthesis of(+)-taberdicatine B and(+)-tabernabovine B

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Chinese Chemical Letters 2025年第2期36卷 349-353页

作者： Tengfei Xuan Xinyu Zhang Wei han Yidong huang Weiwu Ren Molecular Synthesis Center&Key Laboratory of Marine Drugs Chinese Ministry of EducationSchool of Medicine and PharmacyOcean University of China Laboratory for Marine Drugs and Bioproducts Laoshan Laboratory

The first total synthesis of(+)-taberdicatine B and(+)-tabernabovine B has been accomplished in 10steps with 26.9% overall yield and 15 steps with 7.3% overall yield, respectively. The prominent features of this efficient synthetic strategy include the following:(1)(+)-Taberdicatine B and(+)-tabernabovine B were accessed from common advanced intermediates by varying the substituents;(2) A one-pot asymmetric bromocyclization/hydrolysis was explored to assemble HPI skeleton;(3) Dieckmann condensation to form β-keto ester for the assembly of seven-membered ring;(4) An ester reduction/amide semireduction/cyclization sequence was applied to form the cage-like framework.

关键词： Asymmetric dearomatization Hexahydropyrrolo[2,3-b]indole Taberdicatine B Tabernabovine B Total synthesis

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防止泵钢件皮下气孔的有效措施

铸造技术 2011年第5期32卷 739-740页

作者：黄汉云江西渝州科技职业学院江西新余338029

某工厂请求笔者解决ZG03Cr22Ni5 Mo3N泵盖（图1）皮下气孔的问题。1生产情况（1）化学成分w（%）为：0.03C,1.0Si,1.0 Mn,21～23Cr,5.5～6.5Ni,2.5～6.5 Mo,0.2N,Fe余量。

关键词：皮下气孔泵盖钢件生产情况余量