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P2P energy trading via public power networks: Practical challenges, emerging solutions, and the way forward

《能源前沿（英文）》 2023年第17卷第2期页码 189-197 doi: 10.1007/s11708-023-0873-9

摘要： Peer-to-peer (P2P) energy trading is an emerging energy supply paradigm where customers with distributed energy resources (DERs) are allowed to directly trade and share electricity with each other. P2P energy trading can facilitate local power and energy balance, thus being a potential way to manage the rapidly increasing number of DERs in net zero transition. It is of great importance to explore P2P energy trading via public power networks, to which most DERs are connected. Despite the extensive research on P2P energy trading, there has been little large-scale commercial deployment in practice across the world. In this paper, the practical challenges of conducting P2P energy trading via public power networks are identified and presented, based on the analysis of a practical Local Virtual Private Networks (LVPNs) case in North Wales, UK. The ongoing efforts and emerging solutions to tackling the challenges are then summarized and critically reviewed. Finally, the way forward for facilitating P2P energy trading via public power networks is proposed.

关键词： distribution network local virtual private network network charges peer-to-peer (P2P) energy trading practical implementation.

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Fine-grained P2P traffic classification by simply counting flows

Jie HE,Yue-xiang YANG,Yong QIAO,Wen-ping DENG

《信息与电子工程前沿（英文）》 2015年第16卷第5期页码 391-403 doi: 10.1631/FITEE.1400267

摘要： The continuous emerging of peer-to-peer (P2P) applications enriches resource sharing by networks, but it also brings about many challenges to network management. Therefore, P2P applications monitoring, in particular, P2P traffic classification, is becoming increasingly important. In this paper, we propose a novel approach for accurate P2P traffic classification at a fine-grained level. Our approach relies only on counting some special flows that are appearing frequently and steadily in the traffic generated by specific P2P applications. In contrast to existing methods, the main contribution of our approach can be summarized as the following two aspects. Firstly, it can achieve a high classification accuracy by exploiting only several generic properties of flows rather than complicated features and sophisticated techniques. Secondly, it can work well even if the classification target is running with other high bandwidth-consuming applications, outperforming most existing host-based approaches, which are incapable of dealing with this situation. We evaluated the performance of our approach on a real-world trace. Experimental results show that P2P applications can be classified with a true positive rate higher than 97.22% and a false positive rate lower than 2.78%.

关键词： Traffic classification Peer-to-peer (P2P) Fine-grained Host-based

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DGTM：基于动态分组的移动P2P网络信任模型 Article

Mei-juan JIA, Hui-qiang WANG, Jun-yu LIN, Guang-sheng FENG, Hai-tao YU

《信息与电子工程前沿（英文）》 2017年第18卷第4期页码 559-569 doi: 10.1631/FITEE.1601535

摘要：移动对等网络的特征，如有限带宽、动态拓扑、对等节点的异质性、有限资源等，给其带来了额外挑战。为促进移动对等网中节点之间的交易，信任管理成为一个重要研究内容。然而，在移动对等网络中，节点频繁地加入和离开网络，网络拓扑经常发生变化，节点之间很难建立长期有效的信任关系。为解决这个问题，我们首次提出基于动态分组的信任管理模型（Dynamic grouping based trust model, DGTM），该模型通过节点的兴趣对节点进行分类，具有相同或者相似兴趣的节点被分在同一组内，保持稳定的信任关系且彼此分享资源。模拟实验验证表明，我们提出的基于动态分组的信任管理模型能够获得较高的成功交易率和较好的通信开销。

关键词：移动对等网；信任管理；动态分组；超级节点

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端对端能源交易现状分析与展望 Review

周越, 吴建中, 龙超, 明文龙

《工程（英文）》 2020年第6卷第7期页码 739-753 doi: 10.1016/j.eng.2020.06.002

摘要： <p>作为有望解决人类社会“能源三元悖论”的一种重要手段，端对端能源交易（peer-to-peer energy trading）在近年涌现并快速发展。在端对端能源交易中，分布式能源（distributed energy resource, DER）直接互相进行能源的交易和共享。p>

关键词：端对端能源交易分布式能源本地能源市场区块链能源政策

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TEES：一种面向高性能计算快速、灵活应用程序部署的拓扑感知的运行环境服务 Research Article

邵明天,卢凯,迟万庆,王睿伯,戴屹钦,张文喆

《信息与电子工程前沿（英文）》 2022年第23卷第11期页码 1631-1645 doi: 10.1631/FITEE.2100284

摘要： <p>高性能计算（HPC）即将达到新的高度：百亿亿次。应用程序部署正成为一个日益突出的问题。容器技术解决了应用程序及其运行环境的封装和迁移问题。虽然点对点（P2P）方式带来更高的传输效率，但也引入更大的网络负载。所有这些问题都会导致应用程序的高启动延迟。TEES为用户创建了一个更轻量级的运行环境，并使用一种更有效的拓扑感知P2P方法减少部署时间。结合分步传输和提前启动机制，TEES降低了应用程序的启动延迟。p>

关键词：运行环境；应用部署；高性能计算（HPC）；容器；点对点（P2P）；网络拓扑

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面向服务的P2P网络体系结构层次参考模型研究

刘业,刘林峰,庄艳艳

《中国工程科学》 2007年第9卷第9期页码 72-77

摘要： <p style="text-align: justify;">提出了一种基于交互、面向服务的P2P网络体系结构框架模型ISPNA，同时结合P2P网络松耦合、自组织、可缩放等特点，对P2P网络技术中增强其可用性需从P2P网络体系结构的研究角度出发，将增强P2P网络可用性所需要考虑的多方面因素放置在P2P网络的不同层次予以解决，有利于从宏观上把握需要解决的问题。p>

关键词： P2P网络体系结构层次参考模型资源服务

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声场驱动的微操作技术及其生物医学应用

Zhichao Ma, Peer Fischer

《工程（英文）》 2023年第24卷第5期页码 13-16 doi: 10.1016/j.eng.2022.06.006

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Emergency design framework: a satellite preliminary scheme design

TENG Hongfei, WANG Yishou, ZHANG Bao

《机械工程前沿（英文）》 2007年第2卷第2期页码 184-192 doi: 10.1007/s11465-007-0031-9

摘要： The emergency design of mechanical products or equipment (such as a satellite) is significant for disaster relief when the natural disasters occur. Most of us are unaware about the little information that is available in literature about emergency designs. Against the background of the preliminary scheme design of satellite payloads, emergency design was studied in the case of natural disasters. We presented some definitions about emergency design. Then, we proposed the basic ideas of how to realize the emergency design. These ideas were inspired by two aspects: 1) the evolutionary algorithms, the agent, the human-computer cooperation, and the collaborative design theory; 2) the emergency behaviors in ant colonies. Following the ideas, first we constructed the human computer cooperation agents (hereinafter called the HC-Agents) that combine the human intelligence with evolutionary algorithms. These HC-Agents had specific features like the division of labor in the ant colony. Second, we developed the multiagents cooperative design system on the basis of a hybrid P2P (peer-to-peer) model. Therefore, the emergency design system has shown some capabilities, such as anti-interference, adaptation, and rapid response.

关键词： significant intelligence P2P hereinafter computer cooperation

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The opportunity of membrane technology for hydrogen purification in the power to hydrogen (P2H) roadmap

Hiep Thuan Lu, Wen Li, Ehsan Soroodan Miandoab, Shinji Kanehashi, Guoping Hu

《化学科学与工程前沿（英文）》 2021年第15卷第3期页码 464-482 doi: 10.1007/s11705-020-1983-0

摘要： The global energy market is in a transition towards low carbon fuel systems to ensure the sustainable development of our society and economy. This can be achieved by converting the surplus renewable energy into hydrogen gas. The injection of hydrogen (≤10% v/v) in the existing natural gas pipelines is demonstrated to have negligible effects on the pipelines and is a promising solution for hydrogen transportation and storage if the end-user purification technologies for hydrogen recovery from hydrogen enriched natural gas (HENG) are in place. In this review, promising membrane technologies for hydrogen separation is revisited and presented. Dense metallic membranes are highlighted with the ability of producing 99.9999999% (v/v) purity hydrogen product. However, high operating temperature (≥300 °C) incurs high energy penalty, thus, limits its application to hydrogen purification in the power to hydrogen roadmap. Polymeric membranes are a promising candidate for hydrogen separation with its commercial readiness. However, further investigation in the enhancement of H /CH selectivity is crucial to improve the separation performance. The potential impacts of impurities in HENG on membrane performance are also discussed. The research and development outlook are presented, highlighting the essence of upscaling the membrane separation processes and the integration of membrane technology with pressure swing adsorption technology.

关键词： power to hydrogen membrane technology hydrogen energy

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matter 2.5 triggers airway inflammation and bronchial hyperresponsiveness in mice by activating the SIRT2--p65 pathway

《医学前沿（英文）》 2021年第15卷第5期页码 750-766 doi: 10.1007/s11684-021-0839-4

摘要： Exposure to particulate matter 2.5 (PM2.5) potentially triggers airway inflammation by activating nuclear factor-κB (NF-κB). Sirtuin 2 (SIRT2) is a key modulator in inflammation. However, the function and specific mechanisms of SIRT2 in PM2.5-induced airway inflammation are largely understudied. Therefore, this work investigated the mechanisms of SIRT2 in regulating the phosphorylation and acetylation of p65 influenced by PM2.5-induced airway inflammation and bronchial hyperresponsiveness. Results revealed that PM2.5 exposure lowered the expression and activity of SIRT2 in bronchial tissues. Subsequently, SIRT2 impairment promoted the phosphorylation and acetylation of p65 and activated the NF-κB signaling pathway. The activation of p65 triggered airway inflammation, increment of mucus secretion by goblet cells, and acceleration of tracheal stenosis. Meanwhile, p65 phosphorylation and acetylation, airway inflammation, and bronchial hyperresponsiveness were deteriorated in SIRT2 knockout mice exposed to PM2.5. Triptolide (a specific p65 inhibitor) reversed p65 activation and ameliorated PM2.5-induced airway inflammation and bronchial hyperresponsiveness. Our findings provide novel insights into the molecular mechanisms underlying the toxicity of PM2.5 exposure. Triptolide inhibition of p65 phosphorylation and acetylation could be an effective therapeutic approach in averting PM2.5-induced airway inflammation and bronchial hyperresponsiveness.

关键词： particulate matter 2.5 sirtuin 2 p65 airway inflammation bronchial hyperresponsiveness triptolide

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Linking renewables and fossil fuels with carbon capture via energy storage for a sustainable energy future

Dawid P. Hanak, Vasilije Manovic

《化学科学与工程前沿（英文）》 2020年第14卷第3期页码 453-459 doi: 10.1007/s11705-019-1892-2

摘要： Renewable energy sources and low-carbon power generation systems with carbon capture and storage (CCS) are expected to be key contributors towards the decarbonisation of the energy sector and to ensure sustainable energy supply in the future. However, the variable nature of wind and solar power generation systems may affect the operation of the electricity system grid. Deployment of energy storage is expected to increase grid stability and renewable energy utilisation. The power sector of the future, therefore, needs to seek a synergy between renewable energy sources and low-carbon fossil fuel power generation. This can be achieved via wide deployment of CCS linked with energy storage. Interestingly, recent progress in both the CCS and energy storage fields reveals that technologies such as calcium looping are technically viable and promising options in both cases. Novel integrated systems can be achieved by integrating these applications into CCS with inherent energy storage capacity, as well as linking other CCS technologies with renewable energy sources via energy storage technologies, which will maximise the profit from electricity production, mitigate efficiency and economic penalties related to CCS, and improve renewable energy utilisation.

关键词： carbon capture energy storage renewable energy sources decarbonisation fossil fuels

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Consistency Guarantees for Professional Appraisal of Geotechnical Engineering Design under Market Leading and Deciding

Jian-ye Zheng

《工程管理前沿（英文）》 2015年第2卷第1期页码 82-85 doi: 10.15302/J-FEM-2015012

摘要： Peer review is central to the process of modern engineering. Open peer review gives the impression that decisions are arrived at in a fair and meritocratic manner with an objective, reliable, consistent process. It is responsible for identifying methodological flaws and for improving the quality. Assistance from somebody in the same discipline is valuable. Clients refer to reviewers as referees since they help to determine the fate of a design. The client sets up a hanging committee to carry out open peer review to decide whether a piece of work should be accepted, revised or rejected. Reviewers in similar specialties make up a professional group. In an open peer review refereeing a retaining and protection structure design of building foundation pit excavation, an outside expert as an assessor, might master the art of review to pay attention to guarantee consistency of processes and outcomes.

关键词： peer review foundation pit excavation retaining and protection structure design introduction

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construction integration technology in Brazil’s superlarge deep-water offshore oil and gas unit project (FPSO P67/P70)

《工程管理前沿（英文）》 2022年第9卷第2期页码 349-353 doi: 10.1007/s42524-022-0187-3

关键词： Brazil FPSO P67/P70 superlarge dry towing operation construction integration risk control management

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Smart residential energy management system for demand response in buildings with energy storage devices

P. SELVAN

《能源前沿（英文）》 2019年第13卷第4期页码 715-730 doi: 10.1007/s11708-018-0538-2

摘要： In the present scenario, the utilities are focusing on smart grid technologies to achieve reliable and profitable grid operation. Demand side management (DSM) is one of such smart grid technologies which motivate end users to actively participate in the electricity market by providing incentives. Consumers are expected to respond (demand response (DR)) in various ways to attain these benefits. Nowadays, residential consumers are interested in energy storage devices such as battery to reduce power consumption from the utility during peak intervals. In this paper, the use of a smart residential energy management system (SREMS) is demonstrated at the consumer premise to reduce the total electricity bill by optimally time scheduling the operation of household appliances. Further, the SREMS effectively utilizes the battery by scheduling the mode of operation of the battery (charging/floating/discharging) and the amount of power exchange from the battery while considering the variations in consumer demand and utility parameters such as electricity price and consumer consumption limit (CCL). The SREMS framework is implemented in Matlab and the case study results show significant yields for the end user.

关键词： smart grid demand side management (DSM) demand response (DR) smart building smart appliances energy storage

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Correlation between serum miR-154-5p and urinary albumin excretion rates in patients with type 2 diabetes

Huiwen Ren, Can Wu, Ying Shao, Shuang Liu, Yang Zhou, Qiuyue Wang

《医学前沿（英文）》 2020年第14卷第5期页码 642-650 doi: 10.1007/s11684-019-0719-3

摘要： This study aimed to investigate the correlation between serum miR-154-5p and urinary albumin to creatinine ratio (UACR) in patients with type 2 diabetes mellitus (T2DM) and the association with biomarkers of inflammation and fibrosis in diabetic kidney disease (DKD). A total of 390 patients with T2DM were divided into three groups: normal albuminuria (UACR<30 mg/g, =136, NA), microalbuminuria (UACR at 30–300 mg/g, =132, MA), and clinical albuminuria (UACR>300 mg/g, =122, CA). Circulating miR-154-5p, inflammatory (C-reactive protein (CRP); erythrocyte sedimentation rate (ESR); and tumor necrosis factor-α (TNF-α) and fibrotic markers (vascular endothelial growth factor (VEGF); transforming growth factor-β1 (TGF-β1); and fibronectin (FN)), and other biochemical indicators were assessed via real-time PCR, enzyme-linked immunosorbent assay, and chemiluminescence assay in patients with T2DM and 138 control subjects (NC). UACR, miR-154-5p, glycated hemoglobin (HbA1c), serum creatinine (sCr), blood urea nitrogen (BUN), ESR, CRP, VEGF, TNF-α, TGF-β1, and FN were significantly higher and the estimated glomerular filtration rate (eGFR) was significantly lower in NA, MA, and CA groups than in NC subjects ( <0.05). Elevated levels of UACR and miR-154-5p were directly correlated with HbA1c, sCr, BUN, ESR, CRP, VEGF, TNF-α, TGF-β1, and FN and negatively correlated with eGFR ( <0.05). miR-154-5p, HbA1c, sCr, BUN, eGFR, ESR, CRP, VEGF, TNF-α, TGF-β1, and FN were important factors affecting UACR. These findings indicated that elevated serum miR-154-5p is significantly correlated with high UACR in patients with T2DM and may offer a novel reference for the early diagnosis of DKD.

关键词： type 2 diabetes mellitus diabetic kidney disease miR-154-5p urinary albumin to creatinine ratio