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Energy consumption and emission mitigation prediction based on data center traffic and PUE for global data centers

Global Energy Interconnection 2020年第3期3卷 272-282页

作者： Yanan Liu xiaoxia wei Jinyu Xiao Zhijie Liu Yang Xu Yun Tian School of Artificial Intelligence Beijing Normal UniversityHaidian DistrictBeijng 100875China Global Energy Interconnection Development and Cooperation Organization Xicheng DistrictBeijing 100031China

With the rapid development of technologies such as big data and cloud computing,data communication and data computing in the form of exponential growth have led to a large amount of energy consumption in data ***,data centers will become the world’s largest users of energy consumption,with the ratio rising from 3%in 2017 to 4.5%in *** to its unique climate and energy-saving advantages,the high-latitude area in the Pan-Arctic region has gradually become a hotspot for data center site selection in recent *** order to predict and analyze the future energy consumption and carbon emissions of global data centers,this paper presents a new method based on global data center traffic and power usage effectiveness(PUE)for energy consumption ***,global data center traffic growth is predicted based on the Cisco’s ***,the dynamic global average PUE and the high latitude PUE based on Romonet simulation model are obtained,and then global data center energy consumption with two different scenarios,the decentralized scenario and the centralized scenario,is analyzed quantitatively via the polynomial fitting *** simulation results show that,in 2030,the global data center energy consumption and carbon emissions are reduced by about 301 billion kWh and 720 million tons CO2 in the centralized scenario compared with that of the decentralized scenario,which confirms that the establishment of data centers in the Pan-Arctic region in the future can effectively relief the climate change and energy *** study provides support for global energy consumption prediction,and guidance for the layout of future global data centers from the perspective of energy ***,it provides support of the feasibility of the integration of energy and information networks under the Global Energy Interconnection conception.

关键词： Data center Pan-Arctic Energy consumption carbon emission Data traffic PUE Global Energy Interconnection

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Integration and development of energy and information network in the Pan-Arctic region

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Global Energy Interconnection 2019年第6期2卷 505-513页

作者： xiaoxia wei Jinyu Xiao Zhe Wang Zhichun Wang Yun Tian Global Energy Interconnection Development and Cooperation Organization Xicheng DistrictBeijing 100031P.R.China College of Information Science&Technology Beijing Normal UniversityHaidian DistrictBeijng 100875P.R.China

The Global Energy Interconnection is an important strategic approach used to achieve efficient worldwide energy *** idea of developing integrated power,information,and transportation networks provides increased power interconnection functionality and meaning,helps condense forces,and accelerates the integration of global ***,it is envisaged that it will become the trend of industrial technological development in the *** consideration of the current trend of integrated development,this study evaluates a possible plan of coordinated development of fiber-optic and power networks in the Pan-Arctic ***,the backbone network architecture of Global Energy Interconnection is introduced and the importance of the Arctic energy backbone network is *** energy consumption and developmental trend of global data centers are then ***,the global network traffic is predicted and analyzed by means of a polynomial regression ***,in combination with the current construction of fiber-optic networks in the Pan-Arctic region,the advantages of the integration of the fiber-optic and power networks in this region are clarified in justification of the decision for the development of a Global Energy Interconnection scheme.

关键词： Energy Interconnection Data center Network traffic Integrated development of energy and information networks Global En ergy In terconnection

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High Proportion Renewable Energy Supply and Demand Structure Model and Grid Impaction

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Journal of Power and Energy Engineering 2016年第2期4卷 1-12页

作者： xiaoxia wei Jie Liu Tiezhong wei Lirong Wang State Grid Energy Research Institute Beijing China Heilongjiang Grid Company Harbin China

In considering of high proportion of renewable energy supply in 2050, the accelerating of energy consumption gross, source and environment can affect the energy system restrict affection are stronger. Add wind and solar to electricity energy with large amount of energy source exploitation. The energy source amount per person is lower. Considering the renewable energy amount and supply, primary energy storage and structure problem is standing out. Before the wide spread of renewable energy, Using the high-carbon energy in China can pollute seriously. Chinese energy supply and demand problem is research key point. This paper researches Chinese energy supply and demand pattern system and evaluation methodology, gives out the inner and outer influencing elements. And evaluate Chinese energy supply and demand pattern from energy gross, structure, distribution and transportation. Use energy supply synthesize radar comparison chart in certain time period. From energy security, economy, clean and efficiency, analyze the benefit comparisons of Chinese energy supply and demand pattern. This energy supply and demand pattern model will give one certain theoretical analysis and practice reference to the further high proportion of renewable energy.

关键词： High Proportion of Renewable Energy Supply Inner and Outer Element Power Grid Affection Supply and Demand Pattern

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Novel Harmonic Free Single Phase Variable Inductor Based on Active Power Filter Strategy

Novel Harmonic Free Single Phase Variable Inductor Based on ...

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CES/IEEE 5th International Power Electronics and Motion Control Conference

作者： Mu Xianmin Wang Jianze Ji Yanchao wei xiaoxia and Fu Xiangyun Electrical Engineering Department of Harbin Institute of Technology Harbin 150001 Heilongjiang P.R.China Electrical Engineering Department Harbin Institute of Technology Harbin Heilongjiang China

ISBN: (纸本)1424404487

＜正＞This paper presents a variable inductor for single phase system which employs a new control method based on active power filter schemes. The novel variable inductor combines an active power filter circuit and a control circuit. The active power filter circuit is based on a single phase inverter with four controllable switches, a standard H-bridge inverter. The AC side of the inverter is connected to an aid harmonic elimination winding of the variable inductor. Its DC side is connected to a filter capacitor and the secondary winding of variable inductor through the control circuit based on BUCK circuit. The inverter switches are controlled to shape the current through the filter inductor such that the primary current is in the same shape as the input voltage, and in the same time supply the active power consumer of control circuit. The controller is based on a conceptually simple control scheme, the energy balance concept. The advantages of new variable inductor are simplicity of control circuits, low cost and good response. In theory, the harmonic current component of the variable inductor is zero. The feasibility of this theory is verified by using Matlab/Simulink simulation results.

关键词： variable inductor harmonic elimination PWM converter energy balance

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我国算法治理政策法规内容及框架分析

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现代情报 2023年第9期43卷 98-110页

作者：张涛韦晓霞黑龙江大学信息管理学院黑龙江哈尔滨150080

[目的/意义]数智时代算法在经济社会发展过程中发挥了重要作用,算法治理逐渐进入公众视野,算法治理目标的实现必须依靠各种政策法规的组合搭配,对我国算法治理政策法规现状的分析有助于促进算法健康、有序、繁荣发展。[方法/过程]本文借... 详细信息

[目的/意义]数智时代算法在经济社会发展过程中发挥了重要作用,算法治理逐渐进入公众视野,算法治理目标的实现必须依靠各种政策法规的组合搭配,对我国算法治理政策法规现状的分析有助于促进算法健康、有序、繁荣发展。[方法/过程]本文借助Nvivo12质性文本分析软件,以我国12部算法治理政策法规为样本,对其内容进行编码分析,同时提取概括出我国算法治理政策法规框架。[结果/结论]我国算法治理当前存在缺乏总领性法律引导、主题分布不均衡、行业标准规范不细化、尚无地方专项政策的问题。基于此,本文提出我国应从提升算法治理“力度—深度—精度—广度”入手,逐步将较为零散的算法治理政策法规聚合成为具有中国特色的算法治理政策法规体系。

关键词：算法治理质性文本分析政策文本分析算法治理政策法规

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电力工业燃煤消耗与节能发电调度的开展

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中国煤炭 2009年第7期35卷 80-84页

作者：魏晓霞国网北京经济技术研究院北京市宣武区白广路二条1号100761

从我国能源短缺、环境污染、以及电力行业高能耗问题入手,分析了我国电力行业为了应对国家开展的节能减排工作的号召,积极改变电力调度方式,从平均调度发展到节能发电调度,总结了我国的电力行业在开展节能发电调度时所要面对的问题。

关键词：煤炭电力节能发电调度

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Circulating C-reactive protein increases lung cancer risk:results from a prospective cohort of UK Biobank

Circulating C-reactive protein increases lung cancer risk:re...

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2021年中国肿瘤标志物学术大会暨第十五届肿瘤标志物青...

作者： Mengmeng Ji Jingyi Fan Junxing Xie Meng Zhu xiaoxia wei Hongbing Shen Department of Epidemiology and Biostatistics Center for Global Health School of Public Health Nanjing Medical University Department of Epidemiology School of Public Health Southeast University

Chronic inflammation has been associated with the development of lung cancer. In this study, we examined the association between CRP and lung cancer in a prospective cohort study and use Mendelian randomization（MR） to clarify the causality. We included 420 977 participants from the UK Biobank in the analyses;1892 thereof were diagnosed with lung cancer during the follow-up. Hazards ratios（HRs） of CRP concentrations were estimated by Cox proportional hazard models and two approaches of MR analysis were performed. Besides, we added CRP concentrations to previously established risk model of lung cancer to evaluate its pre-diagnostic role through time-dependent ROC *** CRP levels were associated with a 22% increased lung cancer risk per 1 standard deviation increase（HR=1.22, 95%CI: 1.18 to 1.26）. Positive associations were observed in small cell lung cancer（HR= 1.21, 95%CI: 1.10 to 1.33）, lung adenocarcinoma（HR=1.17, 95%CI: 1.11 to 1.24） and lung squamous cell carcinoma（HR=1.22, 95%CI: 1.14 to 1.31）. No genetical association of circulating CRP levels and lung cancer risk was observed in MR analysis. When added to established risk model of lung cancer, CRP improved the performance of model as long as 6 years（previous model: AUC=0.79 [95%CI: 0.77 to 0.81];CRP model: AUC=0.80 [95%CI: 0.77 to 0.82];P nonadjusted=0.003, P adjusted=0.015）. Our results did not support the causal association of circulating CRP with lung cancer risk. However, circulating CRP could be a pre-diagnostic marker of lung cancer across various histological types as long as 6 years in advance.

关键词： C-reactive protein Chronic inflammation Lung cancer Mendelian randomization Prediagnostic marker

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50 Hz magnetic fields induces G2/M cell cycle arrest in human choriocarcinoma cell line JAR cells

50 Hz magnetic fields induces G2/M cell cycle arrest in huma...

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华东六省一市生物化学与分子生物学学会2014年学术交流大会暨浙江省第十一届学会会员代表大会

作者： Chuan Sun xiaoxia wei Liling Su Xinyuan Zhao Guangdi Chen Zhengping Xu Bioelectromagnetics Laboratory Zhejiang University School of Medicine

The intensity of environmental electromagnetic fields(EMF)is increasing fast,and public concerns have been raised about the possible health hazards related to the exposure of *** epidemiological studies show that exposure to extremely low frequency magnetic fields(ELF-MF)is associated with adverse effects on *** vivostudies showalso indicate that ELF-MF exposure affects reproductive ability in *** DNA integrity is crucial for the cellular function of trophoblast cells,which maintain the normal reproductive ***,it remains unclear whether ELF-MF exposure influence the DNA integrity of trophoblast *** the present work,the humanchoriocarcinoma JAR cells were exposed for 24 h to 50 Hz MF at 2.0 *** alkalinecomet assay was used to evaluate DNA damages(e.g.,DNA strand breaks,DNA fragments).The cell cycle progression was evaluated by flow cytometry *** a result,the 50 Hz MF exposure for 24 h significantly increased the DNA fragments in JAR cells,and arrested the cells at G2/M *** determine which type of DNA damage was induced by 50 Hz MF exposure,the neutral comet assay and yH2AX(the phosphorylation form of histone H2AX)foci formation assay were applied to detect DNA double strand breaks(DSBs)in JAR *** assays revealed that 50 Hz MF exposure did not *** results suggest that 50 Hz MF exposure increases DNA single strand breaks(SSBs).In conclusion,our data indicate that 50 Hz MF exposure induce DNA single but not double strand ***,whether the 50 Hz MF exposure-induced G2/M cell cycle arrest in JAR cells is caused by SSBs await further studies.

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不同品种百香果果汁营养与香气成分的比较

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食品科学 2019年第22期40卷 277-286页

作者：潘葳刘文静韦航罗钦韦晓霞福建省农业科学院农业质量标准与检测技术研究所福建省农产品质量安全重点实验室福建福州350003 福建省农业科学院果树研究所福建福州350003

为比较5种百香果果汁品种间营养和香气成分的差异,采用高效液相色谱法、固相微萃取结合气相色谱-质谱联用法对5个品种百香果果汁的营养及香气成分进行分析,利用SPSS 19.0软件对测定结果进行差异分析及主成分分析(principal component an... 详细信息

为比较5种百香果果汁品种间营养和香气成分的差异,采用高效液相色谱法、固相微萃取结合气相色谱-质谱联用法对5个品种百香果果汁的营养及香气成分进行分析,利用SPSS 19.0软件对测定结果进行差异分析及主成分分析(principal component analysis,PCA)。结果表明,5种百香果果汁的营养成分存在显著差异(P<0.05),其中‘芭乐味黄金果’总糖(16.00%)、可溶性固形物(18.43%)及氨基酸含量(928.80 mg/100 g)最高,总酸含量‘芭乐味黄金果’(1.82%)、‘实生株系紫果’(1.79%)和‘满天星’(1.80%)均较低。本实验鉴定出5种百香果果汁中共含有68种香气成分,其中24种物质为5个品种共有;香气物质种类最多的为‘紫香’(58种),其他依次为‘实生株系紫果’(56种)、‘台农’(55种)、‘芭乐味黄金果’(47种)和‘满天星’(39种);香气物质中酯类、醇类、酮类、萜烯类、烷类、醚类和杂环类占香气物质种类的比例平均值分别为83.1%、3.6%、4.8%、3.7%、2.3%、1.7%、0.8%;香气物质含量较高的有丁酸乙酯(295.48~2025.83μg/100 g)、己酸乙酯(573.75~2345.34μg/100 g)、丁酸己酯(166.08~962.66μg/100 g)、甲基丁酸己酯(33.61~818.09μg/100 g)、己酸己酯(332.19~1216.03μg/100 g)和己酸-3-戊酯(635.25~900.74μg/100 g);由PCA结果确定丁酸乙酯、己酸乙酯、丁酸己酯和β-紫罗兰酮为百香果致香的关键成分;‘芭乐味黄金果’中丁酸乙酯(2025.83μg/100 g)、己酸乙酯(2345.34μg/100 g)及C10以下的酯类物质总量(5985.49μg/100 g)、总酯类物质含量(8925.01μg/100 g)、香气物质总量(10740.42μg/100 g)都显著高于其他4个品种(P<0.05);PCA结果显示‘芭乐味黄金果’综合品质最佳,适宜作为选育鲜食百香果良种的材料。

关键词：百香果营养成分香气主成分分析固相微萃取气相色谱-质谱联用仪高效液相色谱

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昂丹司琼预防麻醉后寒战有效性和安全性的Meta分析

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临床麻醉学杂志 2019年第8期35卷 791-797页

作者：黄蓉魏晓霞温州医科大学附属苍南医院药剂科温州市325800 福建省立医院药学部

目的评价昂丹司琼预防麻醉后寒战的有效性和安全性。方法计算机检索Cochrane Library、PubMed、Embase、CNKI、万方、维普等数据库,检索时间为建库至2018年8月,纳入以昂丹司琼预防麻醉后寒战为研究目的,研究组为昂丹司琼,对照组为生理... 详细信息

目的评价昂丹司琼预防麻醉后寒战的有效性和安全性。方法计算机检索Cochrane Library、PubMed、Embase、CNKI、万方、维普等数据库,检索时间为建库至2018年8月,纳入以昂丹司琼预防麻醉后寒战为研究目的,研究组为昂丹司琼,对照组为生理盐水或哌替啶或曲马多的随机对照试验,采用RevMan 5.3对数据进行Meta分析,根据不同对照组、不同麻醉方式及不同剂量进行亚组分析。结果共纳入16项研究,1 443例受试者。有效性方面,研究组寒战发生率明显低于生理盐水组(RR=0.42,95%CI 0.35~0.51,P<0.001);与哌替啶组(RR=0.68,95%CI 0.44~1.05,P=0.09)及曲马多组(RR=2.07,95%CI 0.90~4.75,P=0.09)差异无统计学意义;在3个不同麻醉方式亚组(RR=0.44,95%CI 0.36~0.54,P<0.001),2个不同剂量亚组(RR=0.41,95%CI 0.34~0.49,P<0.001)中,研究组寒战发生率明显低于生理盐水组。安全性方面,研究组术后恶心呕吐发生率明显低于生理盐水组(RR=0.27,95%CI 0.16~0.46,P<0.001)。结论昂丹司琼可有效预防麻醉后寒战的发生,其效果与哌替啶、曲马多相当,并且可明显减少术后恶心呕吐的发生。

关键词：昂丹司琼麻醉后寒战有效性安全性 Meta分析

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