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A DRL-Based Container Placement Scheme with Auxiliary Tasks

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Computers, Materials & Continua 2020年第9期64卷 1657-1671页

作者： Ningcheng Yuan Chao Jia Jizhao lu shaoyong Guo Wencui Li Xuesong Qiu Lei Shi Beijing University of Posts and Telecommunications Beijing100876China China Electronics Standardization Institute BeijingChina Communication Operation Center State Grid Henan Electric Power Company Information&Telecommunication CompanyZhengzhouChina Institute of Technology Carlow CarlowIreland

Container is an emerging virtualization technology and widely adopted in the cloud to provide services because of its lightweight,flexible,isolated and highly portable *** services are often instantiated as clusters of interconnected *** to the stochastic service arrival and complicated cloud environment,it is challenging to achieve an optimal container placement(CP)*** propose to leverage Deep Reinforcement Learning(DRL)for solving CP problem,which is able to learn from experience interacting with the environment and does not rely on mathematical model or prior ***,applying DRL method directly dose not lead to a satisfying result because of sophisticated environment states and huge action *** this paper,we propose UNREAL-CP,a DRL-based method to place container instances on servers while considering end to end delay and resource utilization *** proposed method is an actor-critic-based approach,which has advantages in dealing with the huge action ***,the idea of auxiliary learning is also included in our *** design two auxiliary learning tasks about load balancing to improve algorithm *** to other DRL methods,extensive simulation results show that UNREAL-CP performs better up to 28.6%in terms of reducing delay and deployment cost with high training efficiency and responding speed.

关键词： Container placement deep reinforcement learning auxiliary learning

Spatial distribution of nitrification and denitrification rates of sediment in Wenruitang River, Wenzhou, China

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Acta Geochimica 2006年第S1期 20-21页

作者： shaoyong lu1,2, Xiangcan JIN2, Jianning GUO2, Qingyun BU2, Feipen YANG3, Xiping CHEN3, Yuye YAO3 1 Research Center of Lake Environment, Chinese Research Academy of Environmental Sciences, State Environmental Protection Key Laboratory for Lake Pollution Control, Beijing 100012, China 2 Department of Environment Engineering, Jilin Architectural and Civil Engineering Institute, Changchun 130021, China 3 Headquarters of River Wenruitanghe Regulation Project, Wenzhou, 404042, China

洱海缓冲带典型入湖溪流沉积物磷形态的分布特征

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水土保持通报 2016年第3期36卷 94-97,104页

作者：赵斌卢少勇罗杨阳董文飞刘佩佩王国静张闻涛玉溪师范学院资源环境学院云南玉溪653100 中国环境科学研究院北京100012

[目的]了解洱海缓冲带典型入湖河流沉积物磷形态分布特征,为洱海生态系统修复提供科学依据。[方法]对洱海缓冲带3条典型入湖溪流茫涌溪、莫残溪、中和溪进行了沉积物的采集,并对其中总磷(TP)、无机磷(IP)、铁铝磷(Fe/Al-P)、钙磷(Ca-P)... 详细信息

[目的]了解洱海缓冲带典型入湖河流沉积物磷形态分布特征,为洱海生态系统修复提供科学依据。[方法]对洱海缓冲带3条典型入湖溪流茫涌溪、莫残溪、中和溪进行了沉积物的采集,并对其中总磷(TP)、无机磷(IP)、铁铝磷(Fe/Al-P)、钙磷(Ca-P)4种磷形态的含量进行测定。[结果]3条溪流沉积物磷形态沿程变化趋势大不相同;洱海的缓冲带结构缺乏合理性,有待改进;土地的利用类型不同对洱海缓冲带入湖河流沉积物磷形态贡献率也就不同;入湖口沉积物磷形态含量从大到小均依次为:中和溪>莫残溪>茫涌溪;从磷形态组成来看,茫涌溪沉积物中的磷主要为Ca-P,莫残溪、中和溪则均以Fe/Al-P为主;磷形态的相关性分析表明,3条溪沉积物中TP含量的变化与Fe/Al-P,及有机磷(OP)呈极显著正相关。[结论]沉积物中OP的变化对Ca-P,Fe/Al-P的含量有一定影响。Fe/Al-P含量对IP含量有较高的贡献率。Fe/Al-P与Ca-P之间相关性较弱。

关键词：茫涌溪莫残溪中和溪沉积物磷形态洱海

Glycerol ether biomarkers and their carbon isotopic compositions in a cold seep carbonate chimney from the Shenhu area, northern South China Sea

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Chinese Science Bulletin 2011年第16期56卷 1700-1707页

作者： GE lu JIANG shaoyong YANG Tao YANG JingHong WU NengYou ZHANG GuangXue LIU Jian State Key Laboratory for Mineral Deposits Research and Center for Marine Geochemistry Research Department of Earth Sciences Nanjing University Nanjing 210093 China Guangzhou Marine Geologwal Survey Guangzhou 510760 China

At modern cold seeps,the anaerobic oxidation of methane(AOM)is the dominant pathway for methane consumption in marine ***,which is mediated by a consortium of methane oxidizing archaea and sulfate reducing bacteria,is proposed to be responsible for authigenic carbonate formation.A methane-derived carbonate chimney was collected from the Shenhu area, northern South China *** membrane lipids and their very low carbon isotopic compositions(?115‰to?104‰)in the Shenhu chimney suggest the presence of an AOM *** specific archaeal and bacterial biomarkers were detected,including Ar,DAGE 1f,and monocyclic *** strongly depleted??13C values(?115‰to?104‰),which are lower than those of the normal marine lipids in sediments,reveal biogenic methane as their *** carbonate deposits exhibiting a chimney structure indicate that a vigorous methane-rich fluid expulsion may have occurred at the *** propose that the decomposition of gas hydrates at depth is the likely cause of seepage and cold seep carbonate formation in the Shenhu area.

关键词：碳同位素组成生物标志物自生碳酸盐烟囱结构中国南海冷泉南海北部甘油醚

洱海缓冲带模式识别与不同模式下入湖河流缓冲带段水质

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环境工程技术学报 2018年第5期8卷 475-480页

作者：万正芬卢少勇金相灿毕斌陈方鑫秦攀李琳琳中国环境科学研究院湖泊水污染治理与生态修复技术国家工程实验室北京100012

以洱海缓冲带为研究区,利用现场调查与Arc GIS分析相结合的手段,识别洱海缓冲带模式,分析不同模式下主要入湖河流缓冲带段水质。结果表明:洱海缓冲带共分7种模式,其中模式1面积最大,占洱海缓冲带总面积30.46%;模式4岸线最长,占洱海岸线... 详细信息

以洱海缓冲带为研究区,利用现场调查与Arc GIS分析相结合的手段,识别洱海缓冲带模式,分析不同模式下主要入湖河流缓冲带段水质。结果表明:洱海缓冲带共分7种模式,其中模式1面积最大,占洱海缓冲带总面积30.46%;模式4岸线最长,占洱海岸线总长度37.14%;村落紧靠缓冲带内圈的模式,其面积和岸线均占洱海缓冲带60%以上。不同模式下入湖河流缓冲带段水质为GB 3838—2002《地表水环境质量标准》Ⅳ类~劣Ⅴ类,流经模式1即外圈—农田—村落—内圈缓冲带的桃溪、流经模式3即外圈—农田—村落—农田—内圈缓冲带的罗时江、流经模式5即外圈—村落—内圈缓冲带的白鹤溪,主要受缓冲带内农田面源、农村生活源、旅游污染等的影响,水质均为劣Ⅴ类。洱海缓冲带内村落与景区、高施肥种植农田、分散式畜禽养殖产生大量的污染,直接影响入湖河流缓冲带段水质。洱海湖岸线系数为2.28,沿岸生物多样性相对较低,易受外源污染输入的影响。应治理临近洱海的村落和农田型缓冲带,削减缓冲带内污染负荷量,减轻对洱海的污染。

关键词：洱海缓冲带入湖河流面源污染缓冲带模式

Geochemical characteristics of pore water in shallow sediments from Shenhu area of South China Sea and their significance for gas hydrate occurrence

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Chinese Science Bulletin 2010年第8期55卷 752-760页

作者： YANG Tao JIANG shaoyong GE lu YANG JingHong WU NengYou ZHANG GuangXue LIU Jian State Key Laboratory for Mineral Deposits Research Center for Marine Geochemistry Research Nanjing University Nanjing 210093 China Guangzhou Marine Geological Survey Guangzhou 510760 China

The Shenhu area is one of the promise target areas for marine gas hydrate exploration in the northern margin of the South China *** water samples were collected from two piston cores (8.75 and 8.52 m) in site HS-A and site HS-B in the Shenhu area,and their major anion and cation contents and trace element contents have been analyzed in this ***- concentrations in pore waters are similar to the seawater value and no systematic change along depth profiles has been found for the Cl- content in both *** site HS-A,the SO 2- 4 contents show a limited range in pore waters from 0 to 3 m depths,but a dramatic decrease is documented in depth below 3 *** elements such as Ca 2+,Mg 2+ and Sr 2+ show similar variation patterns as the SO 2- 4,i.e.,no variation in 0-3 m,but large decrease in depth below 3 *** site HS-B,both the SO 4 and Ca 2+,Mg 2+ and Sr 2+ display a decrease pattern along the depth profile,but in 0-3 m the variation is less significant than those in depth below 3 *** both sites HS-A and HS-B,I contents show a dramatic increase along depth *** show that the SMI depths are very shallow (10 and 11 m) in both sites,and the sulfate flux and I flux are very *** geochemical characteristics and anomalies at Shenhu are quite similar to those found in other gas hydrate locations in the world,and a genetic link is suggested to be related to the gas hydrate occurrence at depths in the study *** summary,we suggest that combined geochemical parameters in shallow sediment pore waters are useful indicators to indicate the gas hydrate occurrence at depths.

关键词：天然气水合物地球化学特征南中国海沉积物孔隙水浅层

Chronology,Hf isotopes,geochemistry,and petrogenesis of the magmatic rocks in the Shizishan ore field of Tongling,Anhui Province

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Science China Earth Sciences 2013年第8期56卷 993-1013页

作者： GUO WeiMin lu JianJun JIANG shaoyong ZHANG RongQing ZHAO ZhanJie State Key Laboratory of Mineral Deposit Research Department of Earth SciencesNanjing University Nanjing Institute of Geology and Mineral Resources

LA-ICPMS zircon U-Pb dating of intrusive rocks from the Shizishan ore field,Tongling,Anhui Province shows that the crystallization ages of Baimangshan pyroxene diorite,Shizishan and Dongguashan quartz diorite are 139±1.9,138.0±1.7,and 138.4±1.7 Ma,*** three intrusions are high-potassium,alkali-rich,meta-aluminous,and are characterized by enrichment of light rare earth elements and large-ion lithophile elements,depletion of heavy rare-earth elements(HREE) and high field strength elements,and slightly negative Eu ***-situ Hf analysis of zircon for these three intrusions shows large ranges of Hf isotope compositions:the ε Hf(t) values are ε Hf(t)= 3.3 to 14.4 for Baimangshan,14.1 to 23.9 Dongguashan,and 14.7 to 26.9 for *** ε Hf(t) values of both the Dongguashan and Shizishan quartz diorites are significantly lower than those of Baimangshan pyroxene *** geochemistry and in-situ zircon Hf isotope analyses indicate that the three intrusions were formed through mixing of granitic magma formed by partial melting of the lower crust and water-rich basic magma derived from the enriched lithospheric *** Dongguashan and Shizishan quartz diorites involved greater crustal components than Baimangshan pyroxene *** Dongguashan and Shizishan quartz diorites have geochemical features similar to the adakite,such as high Sr,low Y,and high Sr/Y *** geochemical features can be attributed to some fractional crystallization of apatite and sphene,and insignificant plagioclase fractional crystallization after magma *** three intrusions are the products of complex crust-mantle interaction during the regional tectonic regime transition from compression to extension.

关键词： zircon U-Pb dating Hf isotope magma mixing Shizishan ore field Tongling

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Simulating androgen receptor selection in designer yeast

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Synthetic and Systems Biotechnology 2022年第4期7卷 1108-1116页

作者： Haoran Zhang lu Zhang Yipeng Xu shaoyong Chen Zhenyi Ma Mingdong Yao Fangyin Li Bo Li Yingjin Yuan Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering(Ministry of Education) Tianjin UniversityTianjin300072PR China School of Chemical Engineering and Technology Tianjin UniversityTianjin300072PR China Department of Urology The Cancer Hospital of the University of Chinese Academy of Sciences(Zhejiang Cancer Hospital)HangzhouChina Hematology-Oncology Division Department of MedicineBeth Israel Deaconess Medical Center and Harvard Medical SchoolBostonMA02215USA School of Basic Medical Sciences Tianjin Medical UniversityTianjin300070PR China

Androgen receptor(AR)mutation is closely associated with prostate cancer(PCa)and is one of the mechanisms of resistance to PCa therapies such as AR *** sequencing technologies like next-generation sequencing(NGS)contributes to the high-throughput and precise detection of AR mutations carried by PCa patients,the lack of interpretations of these clinical genetic variants has still been a roadblock for PCa-targeted precision ***,we established a designer yeast reporter assay to simulate natural androgen receptor(AR)selection using AR *** HIS3 gene transactivation was associated with the ligand-induced recruitment of steroid receptor coactivator-1(SRC-1)by AR mutants,where yeast growth in histidine-free medium was determined as the *** assay is applicable to determine a wide range of clinical AR mutants including those with loss of function relating to androgen insensitivity syndrome(AIS),and those associated with PCa conferring resistance to AR antagonists such as enzalutamide(ENZ),bicalutamide(BIC),and cyproterone acetate(CPA).One clinical AR mutant previously reported to confer ENZ-resistance,F877L,was found to confer partial resistance to CPA as well using designer *** simple and efficient assay can enable precise one-pot screening of AR mutants,providing a reference for tailored medicine.

关键词： Androgen receptor mutations Androgen receptor antagonists Prostate cancer Saccharomyces cerevisiae

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中国湖泊水环境基准的研究进展

环境科学学报 2008年第12期28卷 2385-2393页

作者：吴丰昌孟伟宋永会刘征涛金相灿郑丙辉王业耀王圣瑞姜霞卢少勇储昭升陈艳卿王超华祖林王沛芳于志强傅家谟中国环境科学研究院北京100012 河海大学环境科学与工程系南京210098 中国科学院广州地球化学研究所广州510640

中国湖泊污染形势严峻、生态健康效应复杂,亟需适合中国区域特点的水环境基准作为加强污染控制、治理和管理的理论依据,但目前我国湖泊水环境基准的系统研究尚未开展.本文从水环境基准的意义、概念、研究历史、现状和发展趋势等几个方... 详细信息

中国湖泊污染形势严峻、生态健康效应复杂,亟需适合中国区域特点的水环境基准作为加强污染控制、治理和管理的理论依据,但目前我国湖泊水环境基准的系统研究尚未开展.本文从水环境基准的意义、概念、研究历史、现状和发展趋势等几个方面对中国湖泊水环境基准研究进行了剖析回顾和展望:首先阐述了开展区域性水环境基准研究的迫切性和科学意义,揭示了"科学确定基准"的内涵;然后详细回顾了国内外湖泊水环境基准的研究历史、现状及存在的关键问题,提出了湖泊水环境基准的"三性"原则(科学性、基础性和区域性),指出环境暴露、效应识别和风险评估是基准研究的三个关键环节;最后提出中国湖泊水环境基准的研究方向和发展趋势.本文强调:阐明中国水环境的演变规律和特征,需要开展水环境污染过程和生态毒理效应研究;建立具有我国区域特点的湖泊水环境基准理论、技术和方法体系是面向国际科学前沿和解决中国环境管理重大科技需求的重要任务,它既可推动中国毒理学、生物学、生态学及环境与生物地球化学等学科的发展,又可为湖泊流域的环境管理和污染防治提供技术支撑,整体提升我国环境保护科学研究的水平和国际地位.

关键词：湖泊水环境基准生态环境效应环境管理区域差异