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Distributed Graph Database Load Balancing Method Based on Deep Reinforcement Learning

Computers, Materials & Continua 2024年第6期79卷 5105-5124页

作者： Shuming Sha Naiwang Guo wang Luo yong Zhang Nanjing NARI Information&Communication Technology Co. Ltd.Nanjing210032China State Grid Electric Power Research Institute Nanjing211106China State Grid Shanghai Municipal Eleciric Power Company Shanghai200122China

This paper focuses on the scheduling problem of workflow tasks that exhibit *** indepen-dent batch tasks,workflows typically consist of multiple subtasks with intrinsic correlations and *** necessitates the distribution of various computational tasks to appropriate computing node resources in accor-dance with task dependencies to ensure the smooth completion of the entire *** scheduling must consider an array of factors,including task dependencies,availability of computational resources,and the schedulability of ***,this paper delves into the distributed graph database workflow task scheduling problem and proposes a workflow scheduling methodology based on deep reinforcement learning(DRL).The method optimizes the maximum completion time(makespan)and response time of workflow tasks,aiming to enhance the responsiveness of workflow tasks while ensuring the minimization of the *** experimental results indicate that the Q-learning Deep Reinforcement Learning(Q-DRL)algorithm markedly diminishes the makespan and refines the average response time within distributed graph database *** quantifying makespan,Q-DRL achieves mean reductions of 12.4%and 11.9%over established First-fit and Random scheduling strategies,***,Q-DRL surpasses the performance of both DRL-Cloud and Improved Deep Q-learning Network(IDQN)algorithms,with improvements standing at 4.4%and 2.6%,*** reference to average response time,the Q-DRL approach exhibits a significantly enhanced performance in the scheduling of workflow tasks,decreasing the average by 2.27%and 4.71%when compared to IDQN and DRL-Cloud,*** Q-DRL algorithm also demonstrates a notable increase in the efficiency of system resource utilization,reducing the average idle rate by 5.02%and 9.30%in comparison to IDQN and DRL-Cloud,*** findings support the assertion that Q-DRL not only upholds a lower average

关键词： Reinforcement learning workflow task scheduling load balancing

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C30混凝土冲击绝热关系和Grneisen型状态方程的实验研究

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物理学报 2008年第12期57卷 7789-7793页

作者：王永刚张远平王礼立宁波大学力学与材料科学研究中心宁波315211 中国工程物理研究院流体物理研究所绵阳621900

采用一级气炮加载技术和锰铜压力计测试技术,对含初始空隙的C30混凝土在一维应变条件下的冲击特性进行了实验测量和分析.基于锰铜压力计测量的压力波形,确定了C30混凝土材料的冲击绝热关系,即冲击波速度D与波后粒子速度u之间满足线性关... 详细信息

采用一级气炮加载技术和锰铜压力计测试技术,对含初始空隙的C30混凝土在一维应变条件下的冲击特性进行了实验测量和分析.基于锰铜压力计测量的压力波形,确定了C30混凝土材料的冲击绝热关系,即冲击波速度D与波后粒子速度u之间满足线性关系.再从C30混凝土的冲击绝热数据出发,获得了计及初始空隙度Ф0影响的多项式形式Grneisen型状态方程中的各项系数.实测压力波形还显示:不同位置处的压力波形在迅速上升至峰值后均随时间逐渐衰减,而冲击波峰值又随传播距离而衰减,从而表明C30混凝土材料的率相关特性不能忽略,呈现出明显的应力松弛特征和耗散特征.

关键词： Grǖ型状态方程冲击绝热关系混凝土

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Low-carbon design towards sustainable city development:Integrating glass space with natural greenery

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Science China(Technological Sciences) 2024年第9期67卷 2659-2674页

作者： CAO Shi-Jie ZHANG CunKuan wang JunQi FENG ZhuangBo CHEN gang HAGHIGHAT Fariborz School of Architecture Southeast UniversityNanjing 210096China Jiangsu Province Engineering Research Center of Urban Heat and Pollution Control Southeast UniversityNanjing 210096China Global Centre for Clean Air Research Department of Civil and Environmental EngineeringFaculty of Engineering and Physical SciencesUniversity of SurreyGuildfordGU27XHUnited Kingdom The Third Construction Co. Ltd.of China Construction Eighth Engineering DivisionNanjing 210046China Energy and Environment Group Department of BuildingCivil and Environmental EngineeringConcordia UniversityMontrealH3G 1M8Canada

The rapid urban development has caused serious problems such as high energy consumption and carbon emissions,especially under the context of climate *** are particularly energy-intensive,generating about one third of global energyrelated carbon *** with active solutions(like mechanical systems),passive solutions offer the potential to balance energy consumption,thermal comfort,and ecological *** potential solution is the integration of green glass space(GGS)into passive building *** is a transitional building space with glass curtain walls that exhibit excellent insulation performance during ***,GGS is susceptible to overheating during summer,which limits its ***,this work proposes a strategy of integrating vertical greenery into GGS,leveraging the nature-based solution of greenery(i.e.,flourishes in summer and withers in winter)to address this seasonal challenge of *** results demonstrated that the strategic application of vertical greenery can effectively mitigate the overheating in GGS and improve comprehensive *** using full coverage of vertical greenery in a linear layout,the air temperature of GGS and cooling energy consumption were largely reduced by 8.02℃and 12.2%,respectively,while the carbon abatement was enhanced by up to 101.11 *** on a comprehensive evaluation of energy,economy,and environmental benefits,it is recommended to use a greenery configuration with 50%coverage in a vertical linear layout for *** integration of greenery into building design can mitigate adverse environmental impacts,reduce energy consumption,and contribute to the sustainable development of low-carbon cities.

关键词： low-carbon design green glass space vertical greenery greenery configuration carbon abatement

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纳米二氧化钛屏蔽紫外光法显现手印研究

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光谱学与光谱分析 2010年第6期30卷 1561-1565页

作者：王永刚杨瑞琴王彦吉中国人民公安大学刑科技系北京100038

鉴于彩色和强荧光客体上手印难以显现的实际,报道了利用屏蔽紫外光显现手印的新方法。金红石相纳米二氧化钛对紫外光有很强的屏蔽性能。实验用二氧化钛粒径约为30nm,多为球形,对波长小于400nm的光有强烈吸收。通过刷显或抖显的方法,使... 详细信息

鉴于彩色和强荧光客体上手印难以显现的实际,报道了利用屏蔽紫外光显现手印的新方法。金红石相纳米二氧化钛对紫外光有很强的屏蔽性能。实验用二氧化钛粒径约为30nm,多为球形,对波长小于400nm的光有强烈吸收。通过刷显或抖显的方法,使纹线吸附足量的纳米二氧化钛颗粒,而客体表面不吸附或少吸附。在365nm紫外光照下,纹线呈暗色调,背景则为亮色调,拍照得到反差明显的影像。与传统的"502"胶熏显-罗丹明6G(或BBD)染色增显法比较,纳米二氧化钛屏蔽紫外光法显出的手印纹线流畅,细节特征清晰。研究表明:该法可以有效显现彩色或强荧光客体上手印,对于非渗透性客体上的陈旧手印也有比较理想的显现效果。该法具有简便、有效、快速和经济的特点,具有广阔的应用前景。

关键词：纳米二氧化钛屏蔽紫外光手印显现

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异位支气管动脉瘤破裂致血胸1例

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介入放射学杂志 2015年第11期24卷 972-973页

作者：孙存杰王勇刚浙江大学医学院附属邵逸夫医院危重医学科杭州310020

临床资料患者男,52岁,聋哑。因“右侧胸痛2 h”入院。患者2 h前无明显诱因下出现右侧胸痛,当时无咳嗽咯痰,无咯血,无胸闷气急,无恶心呕吐,无腹痛腹泻,无意识障碍,被送至当地医院,考虑“急性心肌梗死”,予“欣康、可达龙”等药物治疗,... 详细信息

临床资料患者男,52岁,聋哑。因“右侧胸痛2 h”入院。患者2 h前无明显诱因下出现右侧胸痛,当时无咳嗽咯痰,无咯血,无胸闷气急,无恶心呕吐,无腹痛腹泻,无意识障碍,被送至当地医院,考虑“急性心肌梗死”,予“欣康、可达龙”等药物治疗,疼痛无缓解,遂到我院急诊就诊。患者既往无高血压病、糖尿病、冠心病史,无外伤手术史。体格检查：T 37.2℃,HR 106次/min,R 20次/min,BP 147/92 mm Hg。神清,精神软,聋哑,查体配合。

关键词：胸痛血胸介入治疗支气管动脉瘤

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Trustworthy semi-supervised anomaly detection for online‐tooffline logistics business in merchant identification

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CAAI Transactions on Intelligence Technology 2024年第3期9卷 544-556页

作者： yong Li Shuhang wang Shijie Xu Jiao Yin Business School China University of Political Science and LawBeijingChina JD Logistics BeijingChina Southeast University NanjingChina Institute for Sustainable Industries and Liveable Cities Victoria UniversityMelbourneVictoriaAustralia

The rise of online-to-offline(O2O)e-commerce business has brought tremendous opportunities to the logistics *** the online-to-offline logistics business,it is essential to detect anomaly merchants with fraudulent shipping behaviours,such as sending other merchants'packages for profit with their low *** can help reduce the financial losses of platforms and ensure a healthy *** anomaly detection studies have mainly focused on online fraud behaviour detection,such as fraudulent purchase and comment behaviours in ***,these methods are not suitable for anomaly merchant detection in logistics due to the more complex online and offline operation of package-sending behaviours and the interpretable requirements of offline deployment in ***,a semi-supervised multiview fusion-based Anomaly Detection framework in online-to-offline logistics is proposed,which consists of a basic version SemiDet and an attention-enhanced multi-view fusion *** SemiDet,pair-wise data augmentation is first conducted to promote model robustness and address the challenge of limited labelled anomaly ***,SemiDet calculates the anomaly scoring of each merchant with an auto-encoder *** the multi-relationships among logistics merchants,a multi-view attention fusion-based anomaly detection network is further designed to capture merchants'mutual influences and improve the anomaly merchant detection performance.A post-hoc perturbation-based interpretation model is designed to output the importance of different views and ensure the trustworthiness of end-to-end anomaly *** framework based on an eight-month real-world dataset collected from one of the largest logistics platforms in China is evaluated,involving 6128 merchants and 16 million historical order consignor records in *** results show that the proposed model outperforms other baselines in both AUC-ROC and AUC-PR metrics.

关键词： artificial intelligence techniques data fusion deep learning

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Interconnection of cellular autophagy and endosomal vesicle trafficking and its role in hepatitis B virus replication and release

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Virologica Sinica 2024年第1期39卷 24-30页

作者： Jia Li yong Lin Xueyu wang Mengji Lu Institute for Virology University Hospital EssenUniversity of Duisburg-EssenEssen45122Germany Key Laboratory of Molecular Biology of Infectious Diseases(Chinese Ministry of Education) Chongqing Medical UniversityChongqing400016China The Key Laboratory for Diagnosis and Treatment of Infectious Diseases The First Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhou310000China

Hepatitis B virus(HBV)produces and releases various particle types,including complete virions,subviral particles with envelope proteins,and naked *** studies demonstrate that HBV exploits distinct intracellular membrane trafficking pathways,including the endosomal vesicle trafficking and autophagy pathway,to assemble and release viral and subviral ***,we summarize the findings about the distinct roles of autophagy and endosomal membrane trafficking and the interaction of both pathways in HBV replication,assembly,and release.

关键词： Amphisome Autophagy Endosomal vesicle Hepatitis B virus(HBV)

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Characterization of geological uncertainties from limited boreholes using copula-based coupled Markov chains for underground construction

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Underground Space 2024年第3期16卷 94-105页

作者： Fan wang Heng Li gang Li Zheng-Jun You Elton J.Chen National Center of Technology Innovation for Digital Construction Huazhong University of Science and TechnologyWuhan 430074China Department of Civil and Hydraulic Engineering Huazhong University of Science and TechnologyWuhan 430074China Department of Building and Real Estate The Hong Kong Polytechnic UniversityKowloon 999077Hong KongChina Shanghai Tunnel Engineering Co. Ltd.Shanghai 200032China Wuhan Metro Group Co.Ltd. Wuhan 430070China

This paper proposes an efficient method for quantifying the stratigraphic uncertainties and modeling the geological formations based on *** Markov chains are used to describe the soil transitions along different directions,and the transition probability matrices(TPMs)of the Markov chains are analytically expressed by *** copula expression is efficient since it can represent a large TPM by a few unknown *** to the analytical expression of the TPMs,the likelihood function of the Markov chain model is given in an explicit *** estimation of the TPMs is then re-casted as a multi-objective constrained optimization problem that aims to maximize the likelihoods of two independent Markov chains subject to a set of parameter *** the method which determines the TPMs by counting the number of transitions between soil types,the proposed method is more statistically ***,a random path sampling method is presented to avoid the directional effect problem in *** soil type at a location is inferred from its nearest known neighbors along the cardinal directions.A general form of the conditional probability,based on Pickard’s theorem and Bayes rule,is presented for the soil type *** proposed stratigraphic characterization and simulation method is applied to real borehole data collected from a construction site in Wuhan,*** is illustrated that the proposed method is accurate in prediction and does not show an inclination during simulation.

关键词： Geological stratigraphy Markov chain Transition probability matrix Statistical method Copula

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Differential metabolite analysis of the pharmacodynamic differences between different ratios of Dahuang(Radix Et Rhizoma Rhei Palmati)-Taoren(Semen Persicae) herb pair

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Journal of Traditional Chinese Medicine 2024年第3期44卷 515-523页

作者： wang Xiang HUANG Jianping wang Yupeng wang Qilong JING Yajiang ZHANG gang PENG Liang GAO Jing wang Hongyan YAN yonggang Department of Key Laboratory of"Qin Pharmaceutical"Research and Development Shaanxi University of Traditional Chinese MedicineXianyang 712046China Department of Yupeng Shaanxi Haitian Pharmaceutical Co. Ltd.Xianyang 712046China Department of Acupuncture and Tuina Shaanxi University of Traditional Chinese MedicineXianyang 712000China

OBJECTIVE: To explore the material basis of the difference of efficacy of Dahuang(Radix Et Rhizoma Rhei Palmati)-Taoren(Semen Persicae)(DT) drugs with different proportions. METHODS: Samples of different ratios of Dahuang(Radix et Rhizoma Rhei Palnati, DH) to Taoren(Semen Persicae, TR)(Group A 1∶1, B 2∶3, C 3∶2) were analyzed based on gas chromatography time-of-flight mass spectrometry untargeted metabolomics technique. RESULTS: A total of 240 primary metabolites were detected. Forty-one differential metabolites involved nine differential metabolic pathways, of which four were closely related to the efficacy of DT in the treatment of heat and blood stasis syndrome. These pathways included the biosynthesis of amino acid(phenylalanine tyrosine and tryptophan), flavonoids, unsaturated fatty acids, and the glycolysis/glycogenesis pathway. CONCLUSION: There are significant differences in the efficacy of different ratios of DT drugs, and their optimal ratio for the treatment of heat and blood stasis syndrome should be 1∶1.

关键词： metabolomics metabolic networks and pathways differential metabolites Dahuang(Radix Et Rhizoma Rhei Palmati) Taoren(Semen Persicae) kernel drug pairs

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Z-scheme Bi_(4)O_(5)Br_(2)/NH_(2)-MIL-125(Ti)heterojunctions enable exceptional visible photocatalytic degradation of organic pollutant

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Rare Metals 2024年第7期43卷 3161-3172页

作者： Feng Huang Muhammad Humayun gang Li Ting-Ting Fan Wen-Lin wang Yu-Lin Cao Anton Nikiforov Chun-Dong wang Jing wang Key Laboratory of Analytical Science and Technology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of EducationState Key Laboratory of New Pharmaceutical Preparations and ExcipientsCollege of Chemistry and Materials ScienceHebei UniversityBaoding071002China Energy Water and Environment LabCollege of Humanities and SciencesPrince Sultan University11586 RiyadhSaudi Arabia Baoding Green Yijia Environmental Protection Technology Ltd Baoding 071051China Physics Laboratory Industrial Training CenterShenzhen Polytechnic UniversityShenzhen 518055China Department of Applied Physics Ghent University9000 GhentBelgium School of Integrated Circuits Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China

One key strategy to enhance photocatalytic performance is to improve the transfer and separation efficiency of photogenerated carriers by building optimized ***,novel Bi_(4)O_5Br_(2)/NH_(2)-MIL-125(Ti)Z-scheme heterojunctions are fabricated and used as photocatalysts for organic pollutant *** NH_(2)-MIL-125(Ti)nanosheets are exfoliated via a self-developed alkali solution stripping approach and then uniformly decorated on Bi_(4)O_(5)Br_(2).The as-prepared Bi_(4)O_(5)Br_(2)/NH_(2)-MIL-125(Ti)presents more than 90%degradation of various pollutants,outperforming the counterpart individual *** various characterization results suggest that the enhanced degradation rate is due to the more intimate face-to-face interfacial contact of the lamellar Z-scheme heterojunction materials,in which the migration path of carriers from the material's interior to the surface can be reduced,in turn enhancing migration efficiency and separation capability significantly.A possible photocatalytic reaction mechanism is proposed based on the photoelectric behaviors,radical trapping experiments and liquid chromatography mass spectrometry *** work promotes the development of new photocatalytic materials for heterojunctions with face-to-face interfacial contacts,as well as the effective purification of wastewater in environmental remediation.

关键词： Z-scheme heterojunctions Photocatalysis Alkaline solution stripping Bi_(4)O_(5)Br_(2) NH_(2)-MIL-125(Ti)

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