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A Novel Scheduling Framework for Multi-Programming Quantum Computing in Cloud Environment

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Computers, Materials & Continua 2024年第5期79卷 1957-1974页

作者： danyang zheng Jinchen Xv Feng Yue Qiming Du ZhihengWang zheng Shan Information Engineering University Zhengzhou450001China

As cloud quantum computing gains broader acceptance,a growing quantity of researchers are directing their focus towards this ***,the rapid surge in demand for cloud-based quantum computing resources has led to a scarcity,which in turn hampers users from achieving optimal ***,cloud quantum computing service providers require a unified analysis and scheduling framework for their quantumresources and user jobs to meet the ever-growing usage *** paper introduces a new multi-programming scheduling framework for quantum computing in a cloud *** framework addresses the issue of limited quantum computing resources in cloud environments and ensures a satisfactory user *** introduces three innovative designs:1)Our framework automatically allocates tasks to different quantum backends while ensuring fairness among users by considering both the cloud-based quantum resources and the user-submitted tasks.2)Multi-programming mechanism is employed across different quantum backends to enhance the overall throughput of the quantum *** comparison to conventional task schedulers,our proposed framework achieves a throughput improvement of more than two-fold in the quantum cloud.3)The framework can balance fidelity and user waiting time by adaptively adjusting scheduling parameters.

关键词： Quantum computing scheduling multi-programming qubit mapping

FedQMIX:Communication-efficient federated learning via multi-agent reinforcement learning

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High-Confidence Computing

High-Confidence Computing 2024年第2期4卷 96-104页

作者： Shaohua Cao Hanqing Zhang Tian Wen Hongwei Zhao Quancheng zheng Weishan Zhang danyang zheng Qingdao Institute of Software College of Computer Science and TechnologyChina University of Petroleum(East China)Qingdao 266580China School of Computing and Artificial Intelligence Xipu CampusSouthwest Jiaotong UniversityChengdu 611756China

Since the data samples on client devices are usually non-independent and non-identically distributed(non-IID),this will challenge the convergence of federated learning(FL)and reduce communication *** paper proposes FedQMIX,a node selection algorithm based on multi-agent reinforcement learning(MARL),to address these ***,we observe a connection between model weights and data distribution,and a clustering algorithm can group clients with similar data distribution into the same ***,we propose a QMIX-based mechanism that learns to select devices from clustering results in each communication round to maximize the reward,penalizing the use of more communication rounds and thereby improving the communication efficiency of ***,experiments show that FedQMIX can reduce the number of communication rounds by 11%and 30%on the MNIST and CIFAR-10 datasets,respectively,compared to the baseline algorithm(Favor).

关键词： Communication efficient Federated learning MARL

Research on Teaching Innovation Team Construction with“Double-Qualified”Teachers Under the Background of the“Double-High Plan”

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Journal of Contemporary Educational Research 2022年第10期6卷 55-61页

作者： Yongchuang Zhu Jinhui Huang danyang zheng School of Chemical Engineering and Technology Guangdong Industry PolytechnicGuangzhou 510300Guangdong ProvinceChina

With the continuous development of education in China,various vocational colleges have responded to the“Double-High Plan”and are actively building teaching innovation teams with“double-qualified teachers.”By improving the professional level of teachers and increasing practical opportunities,vocational colleges and universities can nurture high-level teachers and improve their teaching level so as to meet the demand for high-level technical skills training in the new *** paper discusses the significance of constructing a“double-qualified”education model under the background of the“Double-High Plan,”the requirements of the“double-qualified”education model for teachers,the problems in constructing a teaching innovation team with“double-qualified”teachers,and the countermeasures for these problems.

关键词： Double-High Plan Double-qualified teachers Teaching innovation Team building

Short-term photovoltaic power prediction using combined K-SVD-OMP and KELM method

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Journal of Measurement Science and Instrumentation 2022年第3期13卷 320-328页

作者： LI Jun zheng danyang School of Automation and Electrical Engineering Lanzhou Jiaotong UniversityLanzhou 730070China

For photovoltaic power prediction,a kind of sparse representation modeling method using feature extraction techniques is ***,all these factors affecting the photovoltaic power output are regarded as the input data of the ***,the dictionary learning techniques using the K-mean singular value decomposition(K-SVD)algorithm and the orthogonal matching pursuit(OMP)algorithm are used to obtain the corresponding sparse encoding based on all the input data,*** initial ***,to build the global prediction model,the sparse coding vectors are used as the input of the model of the kernel extreme learning machine(KELM).Finally,to verify the effectiveness of the combined K-SVD-OMP and KELM method,the proposed method is applied to a instance of the photovoltaic power *** with KELM,SVM and ELM under the same conditions,experimental results show that different combined sparse representation methods achieve better prediction results,among which the combined K-SVD-OMP and KELM method shows better prediction results and modeling accuracy.

关键词： photovoltaic power prediction sparse representation K-mean singular value decomposition algorithm(K-SVD) kernel extreme learning machine(KELM)

Radiotherapy for small cell lung cancer in current clinical practice guidelines

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Journal of the National Cancer Center 2022年第2期2卷 113-125页

作者： Haiyan Zeng Dirk K.M.De Ruysscher Xiao Hu danyang zheng Li Yang Umberto Ricardi Feng-Ming Spring Kong Lizza E.L.Hendriks Department of Radiation Oncology(Maastro) GROW School for OncologyMaastricht University Medical Center+MaastrichtThe Netherlands Department of Radiation Oncology Zhejiang Cancer HospitalHangzhouChina Department of Clinical Oncology The University of Hong Kong-Shenzhen HospitalShenzhenChina Department of Clinical Oncology Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongChina Department of Oncology University of TurinTurinItaly Department of Pulmonary Diseases GROW School for Oncology and Developmental BiologyMaastricht University Medical Center+MaastrichtThe Netherlands

Several guidelines including radiotherapy recommendations exist worldwide for the treatment of small cell lung cancer(SCLC).To evaluate the differences in radiotherapy recommendations we conducted a systematic *** and the sites of medical societies were searched for SCLC guidelines published in either English,Chi-nese,or *** was limited to January 2018 till February 2021 to only include up-to-date *** was extracted and compared regarding the guideline’s development method and radiotherapy *** guidelines were identified(PubMed n=4,societies n=7)from Spain(n=1),Canada(n=1),America(n=3),United Kingdom(n=1),the Netherlands(n=1),and China(n=3),*** guidelines assessed the strength of evidence(SOE)and specified the strength of recommendation(SOR),although methods were *** major radiotherapy recommendations are similar although differences exist in thoracic radiotherapy(TRT)dose,time,and *** areas are TRT in resected stage I-IIA(pN1),prophylactic cranial irradiation(PCI)in resected as well as unresected stage I-IIA,stereotactic body radiation therapy(SBRT)in un-resected stage I-IIA,PCI time,and PCI versus magnetic resonance imaging(MRI)surveillance in stage *** existence of several overlapping guidelines for SCLC treatment indicates that guideline development is(unnec-essarily)repeated by different organizations or *** could be made by better international collaboration to avoid duplicating unnecessary work,which would spare a lot of time and *** should be made to work together on controversial or unknown fields.

关键词： Small cell lung cancer Guideline Radiotherapy

Preparation and characterization of a nanostructured lipid carrier for phenylethyl resorcinol

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Journal of Dermatologic Science and Cosmetic Technology

Journal of Dermatologic Science and Cosmetic Technology 2024年第3期1卷 20-31页

作者： danyang zheng Lihua Cai Mengyi Xu Shihao Lan Yongchuang Zhu Shengzhao Gong Wanxian Liang Guangdong Industry Polytechnic University Guangzhou 510300China Zhongkai University of Agriculture and Engineering Guangzhou 510225China Guangdong Engineering Technical Research Center for Green Household Chemicals Guangzhou 510300China Guangzhou Panyu Polytechnic Guangzhou 511483China

Phenylethyl resorcinol(PR)demonstrates inhibitory effects on multiple targets in the melanin synthesis pathway,resulting in a strong whitening ***,challenges such as limited solubility in water and susceptibility to oxidation and discoloration restrict its practical application in the cosmetics *** order to enhance stability and performance characteristics,a whitening nanostructured lipid carrier(NLC)was synthesized through high-pressure *** method entailed the incorporation of solid lipids,a liquid lipid,and a compound emulsifier,with deionized water fulfilling the roles of solid phase,liquid phase,and water phase,*** NLC's particle size,Zeta potential,stability,encapsulation efficiency,and other parameters were assessed using techniques such as particle sizer,stability analyzer,and *** results showed that the NLC for phenylethyl resorcinol prepared by using the optimal formula(7.50%solid lipids,3.00%ethylhexyl palmitate,and 2.00%Tween 80 and soybean lecithin)has an encapsulation efficiency of 87.11%,a particle size of 157.2±0.70 nm,a kinetic instability of less than 1.2,and a greatly improved stability,thereby successfully solving the problems of unstable storage and poor solubility of phenylethyl resorcinol.

关键词： Phenylethyl resorcinol Stability Particle size Encapsulation efficiency Nanostructured lipid carrier

频响法在线监测变压器绕组变形的传递函数构建及其灵敏度分析

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高电压技术 2023年第4期49卷 1534-1544页

作者：郑丹阳程养春彭磊毕建刚常文治华北电力大学高电压与电磁兼容北京市重点实验室北京102206 华北电力大学新能源电力系统国家重点实验室北京102206 中国电力科学研究院有限公司北京100192

离线频响法的传递函数难以应用于运行中变压器的绕组变形检测,因而构建了适用于在线监测的传递函数,并对比分析了其反映变形缺陷的能力。基于多端口电路网络理论,分别构造了适用于中性点接地和中性点不接地的带电运行变压器的3种传递函... 详细信息

离线频响法的传递函数难以应用于运行中变压器的绕组变形检测,因而构建了适用于在线监测的传递函数,并对比分析了其反映变形缺陷的能力。基于多端口电路网络理论,分别构造了适用于中性点接地和中性点不接地的带电运行变压器的3种传递函数;参考实际180 MVA/220k V变压器绕组参数,建立了三相双绕组变压器多导体传输线模型,计算了鼓包和位移变形时各传递函数的频响曲线及其8种特征参数。对比结果表明:在线传递函数的相关系数和欧氏距离的数值、随变形量变化的线性度、对变形量的灵敏度与离线传递函数基本一致;各传递函数特征参数的线性度达到0.8以上,对鼓包变形的灵敏度大约是位移变形的40%。所构造的传递函数不仅适用于带电检测,而且性能与离线传递函数基本一致。

关键词：电力变压器绕组变形频响分析在线监测传递函数

可外接分布参数元件的变压器绕组多导体传输线暂态模型及其模块化封装

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高电压技术 2022年第10期48卷 3955-3965页

作者：彭磊程养春郑丹阳常文治毕建刚华北电力大学高电压与电磁兼容北京重点实验室北京102206 华北电力大学新能源电力系统国家重点实验室北京102206 中国电力科学研究院有限公司北京100192

利用频响法进行在线检测变压器绕组变形时必定要研究频响信号在变电站网络中的暂态传播过程。为了实现将变压器绕组精细模型与变电站网络集成在一起,在采用基于多导体传输线模型的时域有限差分(finite-difference,time-domain,FDTD)算... 详细信息

利用频响法进行在线检测变压器绕组变形时必定要研究频响信号在变电站网络中的暂态传播过程。为了实现将变压器绕组精细模型与变电站网络集成在一起,在采用基于多导体传输线模型的时域有限差分(finite-difference,time-domain,FDTD)算法搭建绕组模型时,对模型端口处的离散差分运算进行近似处理,提出了新型的简化时域有限差分(jianhua,finite-difference,time-domain,JFDTD)算法,为暂态分析提供技术手段。该算法使传输线模型摆脱了外部网络的终端特性,可以进行独立封装模块化并嵌入到Simulink仿真软件中去,从而实现变压器绕组分布式精细模型与变电站网络的集成。将封装的变压器绕组模块与Simulink中自带的简化电路进行比较,误差可降至0.025%左右,表明JFDTD算法具有很高的准确度。基于该方法搭建110 kV变电站对频响信号暂态传播过程进行仿真,验证了其可行性,为以后分析其传播特性及其对在线诊断绕组变形的影响奠定了基础。

关键词：变压器绕组暂态模型时域有限差分法多导体传输线变电站

Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution

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Journal of Energy Chemistry 2025年第1期100卷 226-233页

作者： Jingfang Zhang danyang Wu Linke Cai Youluan Lu Fanpeng Cheng Lijuan Shi Qun Yi Yao Liu Yi Huang Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Hubei Key Laboratory of Novel Reactor and Green Chemical Technology School of Chemical Engineering & Pharmacy Wuhan Institute of Technology Key Laboratory of Pesticide & Chemical Biology of Ministry of Education Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education College of Chemistry Central China Normal University College of Materials Science and Engineering Fuzhou University

Transition metal-based nanomaterials have emerged as promising electrocatalysts for oxygen evolution reaction（OER）. Considerable research efforts have shown that self-reconstruction occurs on these nanomaterials under operating conditions of OER process. However, most of them undergo incomplete reconstruction with limited thickness of reconstruction layer, leading to low component utilization and arduous exploration of real catalytic mechanism. Herein, we identify the dynamic behaviors in complete reconstruction of Co-based complexes during OER. The hollow phytic acid（PA） cross-linked CoFe-based complex nanoboxes with porous nanowalls are designed because of their good electrolyte penetration and mass transport ability, in favor of the fast and complete reconstruction. A series of experiment characterizations demonstrate that the reconstruction process includes the fast substitution of PA by OH-to form Co（Fe）(OH)xand subsequent potential-driven oxidation to Co（Fe）OOH. The obtained CoFeOOH delivers a low overpotential of 290 mV at a current density of 10 mA cm-2and a long-term *** experiment results together with theory calculations reveal that the Fe incorporation can result in the electron rearrangement of reconstructed CoFeOOH and optimization of their electronic structure,accounting for the enhanced OER activity. The work provides new insights into complete reconstruction of metal-based complexes during OER and offers guidelines for rational design of high-performance electrocatalysts.

关键词： Oxygen evolution reaction