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融合深度强化学习与算子优化的流式任务调度

郑州大学学报（理学版） 2025年第1期57卷 15-22页

作者：郭陈虹王菁巩会龙郭浩浩张睿轩北方工业大学信息学院北京100144 大规模流数据集成与分析技术北京市重点实验室(北方工业大学) 北京100144

针对实时性要求高和作业量大的流处理作业执行过程中,多个作业之间存在的相同处理片段可能会导致流处理引擎重复计算、资源浪费和处理性能低下的问题,提出了融合深度强化学习与算子优化的流式任务调度方法。首先利用算子优化算法将多个... 详细信息

针对实时性要求高和作业量大的流处理作业执行过程中,多个作业之间存在的相同处理片段可能会导致流处理引擎重复计算、资源浪费和处理性能低下的问题,提出了融合深度强化学习与算子优化的流式任务调度方法。首先利用算子优化算法将多个复杂的作业去重、重构,其次将重构得到的作业输入循环神经网络中得到任务的调度策略,最后利用强化学习模型进行调度策略的优化。所提方法利用算子优化减少了每个作业中创建的算子实例,结合深度强化学习自动发现最优的调度策略,有效地避免了因大量实例运行而造成的系统资源不足、数据拥塞等问题。对比实验结果表明,所提方法在吞吐量和延迟方面的表现更优异。

关键词：流处理作业任务调度算子优化深度强化学习

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mICROSTRUCTURE OF BINARY mg-Al EUTECTIC ALLOY WIRES PRODUCED BY THE OHNO CONTINUOUS CASTING PROCESS

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Acta metallurgica Sinica(English Letters) 2008年第4期21卷 275-281页

作者： Z.m. Zhang T. Lü C.j. Xu X.F. guo School of materials Science ＆ Engineering Xi＇an University of Technology Xi＇an 710048 China

Directionally solidified binary mg-Al eutectic alloy wires of approximately 5 mm in diameter were produced by the Ohno continuous casting （OCC） process and the microstructure was examined. It was found that the wires possess obvious unidirectional growth characteristic along its axial direction. The microstructure consists of parallel columnar grains that resulted from the competitive growth of equiaxed grains solidified on the head of dummy bar. Each columnar grain comprises regular eutectic a-mg and β-mg17 Al12 phases, which grew along the axial direction of the wires. The morphology of the eutectic is mainly lamellar, meanwhile rod eutectic exists. The formation of rod eutectic was attributed to the ＂bridging effect＂ caused by incidental elements in the alloy.

关键词： mg-Al alloy Eutectic structure Directional solidification OCC process

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智能传感技术在水肥一体系统中的应用研究

农机化研究 2025年第2期47卷 176-180页

作者：祝鹏郭艳光内蒙古农业大学职业技术学院内蒙古包头014109

以进一步提升水肥一体机系统的作业效率为目标,选取智能传感的监测技术,针对整机的监测控制与信号处理展开应用设计研究。考虑水肥一体机过程作业肥液融合的均匀性及系统各模块之间的协同性功能实现,结合微分补偿的传感数据算法处理方法... 详细信息

以进一步提升水肥一体机系统的作业效率为目标,选取智能传感的监测技术,针对整机的监测控制与信号处理展开应用设计研究。考虑水肥一体机过程作业肥液融合的均匀性及系统各模块之间的协同性功能实现,结合微分补偿的传感数据算法处理方法,进行智能传感的水肥一体机架构布局,并匹配可执行的软件控制程序及硬件实施结构,进行实地传感应用监测与灌施控制作业试验。结果表明:水肥一体机系统的数据监测准确率可达95.25%,系统故障率相对降低3.79%,监测数据准确及时,能够确保系统各环节指令得到有效的调整与反馈,进而保证灌施土壤的含水稳定率相对提升7.87%,对于作物的稳定生长与产量提升有重要的参考价值。

关键词：水肥一体机智能传感信号处理微分补偿数据监测准确率

Dissecting genetic diversity and genomic background of Petunia cultivars with contrasting growth habits

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Horticulture Research 2020年第1期7卷 634-648页

作者： Yufang guo Ryan m.Warner Department of Horticulture Michigan State UniversityEast LansingMI 48824USA

The cultivated petunia(Petunia×hybrida)is derived from the progenitor species *** and *** hybridization dates back only to the 1830s,though intensive breeding efforts have yielded cultivars exhibiting incredible diversity for many traits,including growth habit,flower color,and flower *** now,little is known about the genetic diversity and genomic background of modern *** we selected a panel of 13 cultivars with contrasting growth habits and three wild species(the progenitors and ***)to estimate the genomic contribution from the ancestral species and to study whether the variation of the genetic origin could be associated with different breeding programs or morphological *** sequencing identified 1,164,566 SNPs representing 98.4%(32,451)of the transcripts that cover 99.2%(of 52,697,361 bp)of the *** *** with an upright growth habit had more homozygous alleles and more ***-derived alleles than trailing cultivars,while mounded cultivars had intermediate *** previous studies,we found the proportions of alleles derived from each progenitor species varied across cultivars but overall were not biased toward one progenitor species,suggesting diverse selection during cultivar *** trailing cultivars,alleles potentially introgressed from other wild species(“out”alleles)were ***“out”alleles were clustered in particular regions of chromosomes,suggesting that these regions may be hotspots of *** in these regions were enriched with gene ontology terms associated with growth *** study provides novel insight into the contributions of progenitor species to the genomic background of modern petunia cultivars and identifies genome regions that may harbor genes conferring the trailing growth habit for further exploration.

关键词： cultivar breeding trail

Copper hydrometallurgy—current status, preliminary economics, future direction and positioning versus smelting

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中国有色金属学会会刊：英文版 2004年第3期14卷 560-568页

作者： j. Peacey guo Xian-jian E. Robles Hatch Associates Ltd. Hatch Associates Ltd. Hatch Ingenierosy Consultores Ltda. 2800 Speakman Drive Mississauga Ontario L5K 2R7 Canada2800 Speakman Drive Mississauga Ontario L5K 2R7 CanadaSan Sebastian 2839 Piso 9 Las Condes Santiago 6760226 Chile

The heap leaching of oxide copper ores with copper cathode recovery by solvent extraction and electro-winning is now well established as a low-cost method of copper recovery. This technology has recently been applied successfully to mixed oxide and chalcocite ores, notably in Chile at Cerro Colorado, Quebrada Blanca and Zaldivar. Currently, there are significant development efforts underway to try to extend heap leaching to chalcopyrite ores. The success of heap leaching/SX/EW has also led to a revival in the development of hydrometallurgical processes to recover copper from chalcopyrite and other copper concentrates. The current status of copper hydrometallurgy is reviewed and the most commercially attractive potential applications are explored. The advantages and disadvantages of the hydrometallurgical treatment of chalcopyrite concentrates and its preliminary economics are compared with those for the current best practices in copper smelting and refining.

关键词：炼铜湿法冶金熔炼过滤 SX/EW 经济分析

THE INTERFACIAL BEHAVIORS OF ALUmINUm mATRIX COmPOSITE IN DIFFERENT WELDING mETHODS

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Acta metallurgica Sinica(English Letters) 2004年第1期17卷 55-60页

作者： W.guo j.T.Niu j.F.Zhai G.T.Zhou m.Z.Wang State Key Laboratory of Advanced Welding Production Technology Harbin Institute of Technology(HIT)Harbin150001China State Key Laboratory of metal matrix Composite Shanghai Jiaotong University.Shanghai 200030.China

Non-interlayer liquid phase diffusion welding (China Patent) and laser welding methods for aluminum matrix composite are mainly described in this paper. In the non-interlayer liquid phase diffusion welding, the key processing parameters affecting the strength of joint is welding temperature. When temperature rises beyond solidus temperature, the bonded line vanishes. The strength of joint reaches the maximum and becomes constant when welding temperature is close to liquid phase temperature. Oxide film in the interface is no longer detected by SEm in the welded joint. With this kind of technique, particle reinforced aluminum matrix composite Al2 O3p/6061Al is welded successfully, and the joint strength is about 80% of the strength of composite (as-casted). In the laser welding, results indicate that because of the huge specific surface area of the reinforcement, the interfacial reaction between the matrix and the reinforcement is restrained intensively at certain laser power and pulsed laser beam. The laser pulse frequency directly affects the reinforcement segregation and the reinforcement distribution in the weld, so that the weldability of the composite could be improved by increasing the laser pulse frequency. The maximum strength of the weld can reach 70% of the strength of the parent.

关键词： non-interlayer liquid phase diffusion welding Al2O3p/6061 Alaluminum matrix composite laser welding interface behavior reinforcement

Preparation of carbon fiber cloth supported porous CdS nanorods with excellent photocatalytic activity for Cr(Ⅵ)reduction

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中南民族大学学报（自然科学版） 2025年第1期44卷 9-21页

作者： LI Hengchao WANG Wenguang WU Liangpeng jIAN Siyuan LONG Shimin guo Yuxi Guangdong University of Technology School of Materials and EnergyGuangzhou 510006China Guangdong University of Technology School of Chemical Engineering and Light IndustryGuangzhou 510006China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516000Guangdong China

The use of visible-light responsive photocatalysts for removing heavy metal ions in wastewater has received great ***,the development of photocatalysts with high activity and recyclability remains a huge ***,a recyclable carbon fiber cloth-supported porous CdS nanorod photocatalyst was fabricated by a two-step hydrothermal treatment using AgVO_(3) nanowires as *** results indicated that under visible-light illumination,the carbon cloth-supported porous CdS nanorods showed improved photocatalytic activity for the reduction of Cr(Ⅵ),with an apparent rate constant exceeding that of carbon cloth-supported CdS nanospheres by a factor of 1.65 ***,the carbon cloth-supported porous CdS nanorods can be easily separated and be *** brings a new perspective for developing photocatalysts with high efficiency and recyclability for wastewater treatment.

关键词： carbon cloth cadmium sulfide silver metavanadate porous nanorods heavy metal ions reduction

Cadmium sulfide cage photocatalysis coupled electroactive biofilm for synergistic promotion of tetracycline degradation and electricity production

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journal of materials Science & Technology 2023年第35期166卷 86-97页

作者： Z.S.Yuan j.X.Zou X.L.Zhao j.Y.Shi C.S.guo m.Yan School of Chemistry and Chemical Engineering Harbin Institute of TechnologyHarbin 150001China

Tetracycline(TC)as a common broad-spectrum antibiotic,has been frequently detected in soil and sur-face *** becomes a great threat to the ecological ***,a device of photocatalysis as-sisted microbial fuel cell(photo-mFC)was constructed for TC degradation and energy *** this photo-mFC,cadmium sulfide(CdS)cage photocatalysis can degrade most of TC in a short *** the Co_(3)O_(4)@C-CC(carbonization and calcination of the ZIF-67 precursor in-situ grown on the carbon cloth(CC))bioanode degrades the rest of TC as well as the photocatalytic products,thus improving the *** co-existence of photocatalysis with bioanode changes the microbial community structure of the *** dominant phylum is Geobacter(60.2%)in normal mFC while that in photo-mFC are Pro-teobacteria(43.5%)and Geobacter(33.2%).Therefore,the synergistic effect of photocatalytic degradation and biodegradation achieves a chemical oxygen demand(COD)removal of 98.6%,which is higher than that of normal mFC(77.6%)or single CdS cage photocatalysis(23.8%).In addition,the photogenerated electrons can be transferred to the cathode,which reduces their combination with holes and increases the electricity generation of mFC,achieving a maximum power density of 3.37 W/m^(2).After degradation,the effluent with 200 mg L^(−1) TC exhibits no visible ***,electrochemical test,finite-difference time-domain(FDTD),density functional theory(DFT)calculation and the free radical trapping experiments verify the possible mechanisms of photocatalytic degradation in this *** strat-egy paves a new way for low energy consumption removal and energy recovery of organic pollutants.

关键词： Photo-mFC CdS cage Tetracycline degradation mineralization Electricity production

The proteome of distal nerves: implication in delayed repair and poor functional recovery

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Neural Regeneration Research 2022年第9期17卷 1998-2006页

作者： Song guo Raymond m.moore m.Cristine Charlesworth Kenneth L.johnson Robert j.Spinner Anthony j.Windebank Huan Wang Department of Neurologic Surgery Mayo ClinicRochesterMNUSA Biomedical Statistics and Informatics Mayo ClinicRochesterMNUSA Proteomics Core Mayo ClinicRochesterMNUSA Department of Neurology Mayo ClinicRochesterMNUSA

Chronic denervation is one of the key factors that affect nerve *** axotomy deteriorates the distal nerve stump,causes protein changes,and renders the microenvironment less permissive for *** of these factors/proteins have been individually *** better delineate the comprehensive protein expression profiles and identify proteins that contribute to or are associated with this detrimental effect,we carried out a proteomic analysis of the distal nerve using an established delayed rat sciatic nerve repair *** rats that received immediate repair after sciatic nerve transection served as control,whereas four rats in the experimental group(chronic denervation)had their sciatic nerve repaired after a 12-week *** the rats were sacrificed after 16 weeks to harvest the distal nerves for extracting ***-five micrograms of protein from each sample were fractionated in SDS-PAGE ***-mS/mS analysis was applied to the *** expression levels of nerves on the surgery side were compared to those on the contralateral *** protein with a P value of less than 0.05 and a fold change of 4 or higher was deemed differentially *** the differentially expressed proteins in both groups were further stratified according to the biological processes.A Pubmed search was also conducted to identify the differentially expressed proteins that have been reported to be either beneficial or detrimental to nerve *** Pathway Analysis(IPA)software was used for pathway *** results showed that 709 differentially expressed proteins were identified in the delayed repair group,with a bigger proportion of immune and inflammatory process-related proteins and a smaller proportion of proteins related to axon regeneration and lipid metabolism in comparison to the control group where 478 differentially expressed proteins were *** experimental group also had more beneficial proteins that were d

关键词： chronic axotomy chronic denervation delayed repair distal nerve functional recovery nerve regeneration peripheral nerve prolonged denervation proteome sciatic nerve sciatic nerve transection