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Factors Influencing Fracture Propagation in Collaborative Fracturing ofMultiple HorizontalWells

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Energy Engineering 2024年第2期121卷 425-437页

作者： Diguang Gong junbin chen cheng cheng Yuanyuan Kou Shanxi Key Laboratory of Well Stability and Fluid&RockMechanics inOil andGas Reservoirs Xi’an Shiyou UniversityXi’an710065China The Second Oil Production Plant Petro China Changqing Oilfield CompanyQingyang745100China

Horizontal well-stimulation is the key to unconventional resource exploration and *** development mode of the well plant helps increase the stimulated reservoir ***,fracture interference between wells reduces the fracturing ***,a 2D hydro-mechanical coupling model describing hydraulic fracture(HF)propagation is established with the extended finite element method,and the effects of several factors on HF propagation during multiple wells fracturing are *** results show that with an increase in elastic modulus,horizontal principal stress difference and injection fluid displacement,the total fracture area and the reservoir stimulation efficiency are both improved in all three fracturing *** a comparison of the three technologies,the method of improved zipper fracturing is proposed,which avoids mutual interference between HFs,and the reservoir stimulation effect is improved *** study provides guidance for optimizing the fracturing technology of multiple horizontal wells.

关键词： Multi-well fracturing inter-fracture interference hydraulic fracturing hydro-mechanical coupling extended finite element horizontal well

Natural Variation Identifies a Key Residue Required for a G-type Lectin Receptor Kinase-mediated Immune Complex Formation and Defense in Maize

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Natural Variation Identifies a Key Residue Required for a G-...

中国植物病理学会2024年学术年会

作者： LI Zhenju chen junbin ZHU Wangsheng State Key Laboratory of Maize Bio-breeding Key Laboratory of Surveillance and Management for Plant Quarantine PestsMinistry of Agriculture and Rural Affairsand College of Plant ProtectionChina Agricultural University

[Objective] Corn is an important staple crop in China and is a crucial feed and energy *** faches various pathogenic microorganisms throughout its growth cycle,leading to significant reductions in yield and *** three broad-spectrum resistance genes（ZmCCoAOMT2,ZmMM1,and ZmNANMT） have been *** study aims to identify new broad-spectrum resistance genes in corn by mapping maize inbred line populations.[Method] We analyzed the candidate genes on chromosome 5 in maize based on our previous whole_ genome association *** mechanisms of maize disease resistance genes were elucidated through genetic analysis,sequence diversity analysis,and biochemical analysis.[Result] We report the isolation and mechanistic characterization of a G-type Lectin receptor-like kinase encoding gene ZmLecRK that confers multi-pathogen resistance in *** interacts with its co-receptor,a leucine-rich repeat receptor-like kinase ZmBAK1-L1,and signals through the cytoplasmic receptor-like kinase ZmBLK1 for immune *** demonstrated that the A404 S mutation in the PAN domain of ZmLecRK is the major casual polymorphism that distinguishes the two functional different ZmLecRK proteins in maize inbred lines by modulating the ZmLecRK-ZmBAK1-L1 interaction and formation of ZmLecRK related protein *** analysis revealed that the susceptible LecRKs allele with S404 is highly conserved among the majority of LecRKs from grass species,but the resistant LecRKs allele with A404 is only present in half of maize inbred lines.[Conclusion] Taken together,we not only identified ZmLecRK as a new multi-pathogenresistant gene in maize but also pinpointed a key functional residue of ZmLecRK and its homologs in grass species,highlighting the possibility of precisely modulating the activity of ZmLecRK and its homologs for disease-resistant crops using targeted gene editing.

关键词： Maize Natural variation Multi-pathogen resistance Lectin receptor-like kinase

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大数据时代下的数据处理与分析技术研究

信息与电脑 2024年第10期36卷 100-102页

作者：陈俊斌广州城市理工学院计算机工程学院广东广州510800

本文介绍了大数据处理与分析技术的体系及其核心组成部分,重点介绍了基于人工智能的大数据处理技术和云计算平台下的大数据处理技术,阐述了其技术优势以及应用场景。本研究通过案例展示了A电商企业在云计算平台支持下构建的大数据处理... 详细信息

本文介绍了大数据处理与分析技术的体系及其核心组成部分,重点介绍了基于人工智能的大数据处理技术和云计算平台下的大数据处理技术,阐述了其技术优势以及应用场景。本研究通过案例展示了A电商企业在云计算平台支持下构建的大数据处理与分析平台的应用,体现了云计算平台在大数据分析中的价值和应用前景。

关键词：大数据处理人工智能云计算数据分析

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生物多样性在低碳农业中的应用现状及展望

农学学报 2024年第4期14卷 42-51页

作者：陈俊斌胡广浙江理工大学建筑工程学院杭州310018 浙江省植物次生代谢调控重点实验室杭州310018

在中国推进生态文明建设的背景下,农业固碳增效被写入“双碳目标”,低碳农业随之兴起。生物多样性是生态系统功能与服务的基础,在农业低碳化过程中发挥了至关重要的作用,保护农田生物多样性,充分发挥其生态作用是实现农业减排固碳的重... 详细信息

在中国推进生态文明建设的背景下,农业固碳增效被写入“双碳目标”,低碳农业随之兴起。生物多样性是生态系统功能与服务的基础,在农业低碳化过程中发挥了至关重要的作用,保护农田生物多样性,充分发挥其生态作用是实现农业减排固碳的重要路径。收集“Web of Science”数据库中2010-2022年的文献,利用CiteSpace文献计量软件的关键词共现以及聚类分析,对近年来国际低碳农业中生物多样性的研究动态、研究热点进行分析,对生物多样性的功能进行归纳总结。分析结果表明,生物多样性的保护与管理是目前低碳农业生物多样性的研究热点,而生物防治是生物多样性实现农业低碳化的主要途径,通过对不同生物类群多样性的生态价值进行梳理,发现生物多样性可以增加农业生产过程中的生态与经济价值。未来的研究可从生态系统和景观的尺度,探索基于生物多样性的多功能农业发展模式,从而更好地助力双碳目标的顺利实现。

关键词：农业低碳化生物多样性增产品质提升病虫害控制传粉生物类群

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基于MAGAT的风电场功率缺失数据填充方法

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电网技术 2024年第8期48卷 3391-3400,I0112-I0114页

作者：卢冠华余涛吴毓峰潘振宁陈俊斌邓柏荣华南理工大学电力学院广东省广州市510640 广东省电网智能量测与先进计量企业重点实验室广东省广州市510640

风电场功率数据质量对风电预测具有重要意义。然而,由于人为操作、传感器故障、网络故障或通信拥堵等原因,风电场功率数据容易出现大面积缺失问题。因此,结合多头注意力机制(multi-head attention,MA)和图注意力网络(graph attention ne... 详细信息

风电场功率数据质量对风电预测具有重要意义。然而,由于人为操作、传感器故障、网络故障或通信拥堵等原因,风电场功率数据容易出现大面积缺失问题。因此,结合多头注意力机制(multi-head attention,MA)和图注意力网络(graph attention network,GAT)构建了MAGAT模型,其中GAT层以异质图的方式刻画及提取风电场已知数据与缺失数据的关联关系,MA层挖掘风电场数据特征与缺失功率数据之间的映射关系,从而实现风电场功率缺失数据的高精度填充。在以我国江苏某风电场运行监测数据为对象的算例分析中,与其他先进填充算法相比,所提方法在不同缺失类型、不同缺失率等多个场景下均具有更好表现,表明所提方法在风电场缺失数据填充任务上的有效性及稳定性。

关键词：风电场数据填充多头注意力图注意力网络

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A Unified Time Scale Intelligent Control Algorithm for Microgrid Based on Extreme Dynamic Programming

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CSEE Journal of Power and Energy Systems 2020年第3期6卷 583-590页

作者： junbin chen Tao Yu Linfei Yin Jianlin Tang Hanqi Wang School of Electric Power South China University of TechnologyGuangzhou 510640China College of Electrical Engineering Guangxi UniversityNanning 530004China Department of Electronic Information and Electrical Engineering Dalian University of TechnologyDalian 116024China

Benefiting from the progress of power electronics technology,distributed generation technology is developing *** microgrids cannot rely on traditional multi-time scale control strategies to ensure the high-quality frequency stability control and economic dispatch in the same time scale,this paper proposes an extreme dynamic programming *** proposed algorithm takes an adaptive dynamic programming algorithm as the framework,an extreme learning machine as a kernel of the evaluation module,a model module,an implementation module and a new prediction *** resulting unified time scale intelligent control algorithm better realizes the combined functions of“droop control+automatic generation control+economic dispatch”in the traditional ***,in order to verify the effectiveness of the proposed algorithm,a microgrid model of 8 nodes is *** results confirm the feasibility and validity of the proposed extreme dynamic programming algorithm.

关键词： Extreme dynamic programming(EDP) microgrid frequency stability unified time scale

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页岩储层水力裂缝和天然裂缝交互规律

断块油气田 2024年第2期31卷 232-240页

作者：李紫妍陈军斌左海龙王庆欧阳雯林天刘波任大忠西安石油大学石油工程学院陕西西安710065 中国石油长庆油田分公司勘探开发研究院陕西西安710018 中国石油长庆油田分公司第一采油厂陕西延安716000 中国石油长庆油田分公司安全环保监督部陕西西安710018

页岩储层的大量天然裂缝会在水力压裂中影响水力裂缝扩展路径,厘清二者交互规律对于明确储层裂缝扩展机制及优化裂缝网络具有指导意义。文中利用真实页岩岩心,在提前预置单一裂缝基础上,模拟水力压裂过程中水力裂缝与天然裂缝的交互行为... 详细信息

页岩储层的大量天然裂缝会在水力压裂中影响水力裂缝扩展路径,厘清二者交互规律对于明确储层裂缝扩展机制及优化裂缝网络具有指导意义。文中利用真实页岩岩心,在提前预置单一裂缝基础上,模拟水力压裂过程中水力裂缝与天然裂缝的交互行为;采用单一变量法,研究水力裂缝逼近角、注入孔深度、天然裂缝胶结强度、围压对二者交互行为的影响。结果表明:交互状况有水力裂缝打开天然裂缝、沿天然裂缝穿行一定距离后偏转、穿过天然裂缝3种,而打开时最大滑移量和最大滑移速率在所有交互结果中最高,偏转时次之,穿过时最小;相比张性起裂,裂缝剪切起裂下最大滑移速率较小,最大滑移量较大。逼近角大、注入孔深度小、天然裂缝胶结强度大、围压高均有利于水力裂缝均衡扩展;反之,则易沟通天然裂缝形成复杂缝网。该研究成果对改善裂缝网络形态及优化页岩储层压裂设计具有一定的借鉴意义。

关键词：水力裂缝裂缝相交页岩储层三轴压缩剪切滑移水力压裂

改进麻雀搜索算法在智能配电网自愈控制中的应用研究

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自动化与仪器仪表 2024年第1期 116-120页

作者：陈俊彬邝似斌江泉陈科平潘敏敏广东电网有限责任公司汕尾供电局广东汕尾516600 海南电网有限责任公司三亚供电局海南三亚572000 广东电网有限责任公司汕尾海丰供电局广东汕尾516600 海南电网有限责任公司乐东供电局海南乐东572500

针对当前智能配电网自愈控制效率低、效果差的问题,研究在考虑到智能配电网的自我预防和自我恢复的基础上,从配电网优化重构和故障恢复两个角度出发,构建了智能配电网自愈控制数学模型,并采用麻雀搜索算法(Sparrow Search Algorithm, S... 详细信息

针对当前智能配电网自愈控制效率低、效果差的问题,研究在考虑到智能配电网的自我预防和自我恢复的基础上,从配电网优化重构和故障恢复两个角度出发,构建了智能配电网自愈控制数学模型,并采用麻雀搜索算法(Sparrow Search Algorithm, SSA)对其进行求解。针对SSA收敛性和寻优性能不够理想的缺陷,研究引入Chebyshev混沌映射、黄金正弦等策略来对其进行改进,以提升自愈控制数学模型的求解效果。实验结果显示,ISSA算法的Recall值为95.94%,F1值为94.48%。在配电网自愈控制中,ISSA算法优化后的开关使用次数与网损均低于其他两种算法。综上所述,研究提出的基于ISSA的智能配电网自愈控制方法能够有效提高自愈性能,保证电网的安全、稳定运行。

关键词：麻雀搜索算法智能配电网自愈控制状态评估

Efficacy and safety of a sequential treatment with clearing heat and eliminating phlegm and tonifying Qi and activating blood circulation in treating acute ischemic stroke: study protocol for a randomized controlled trial

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Journal of Traditional Chinese Medicine 2022年第4期42卷 604-610页

作者： ZHOU Ziyi WAN Can ZHAO Yuanqi LIU Xiangzhe GAO Ying AN Hongwei LI Lejun ZHANG Huili YU Xiaofei ZHANG Xinchun WANG Huijuan SHI Qing WEI Chunhua chen Jie HUANG Wenguo chen junbin GAO Ying HU Mingzhe CAI Yefeng Department of Neurology Guangdong Provincial Hospital of Chinese MedicineGuangzhou 510120China the Second Clinical College of Guangzhou University of Chinese Medicine Guangzhou 510120China Department of Neurology The First Affiliated Hospital of Henan University of Traditional Chinese MedicineZhengzhou 450000China Department of Neurology Shenyang Second Hospital of Traditional Chinese MedicineShenyang 110100China Department of Neurology Liuzhou Traditional Chinese Medical HospitalLiuzhou 545001China Department of Neurology Wuxi Traditional Chinese Medicine HospitalWuxi 214071China Department of Neurology Qinhuangdao City Hospital of Traditional Chinese MedicineQinhuangdao 066000China Department of Neurology Shanghai Shuguang HospitalShanghai 200120China Department of Neurology the Second Hospital of Hebei Medical UniversityShijiazhuang 050000China Department of Neurology Jiangmen Wuyi Hospital of Traditional Chinese MedicineJiangmen 529000China Department of Neurology Nanshi Hospital Affiliated to Henan UniversityNanyang 473065China Department of Neurology Shanxi Province Hospital of Traditional Chinese MedicineXi'an 710003China Department of Neurology Maoming Hospital of Traditional Chinese MedicineMaoming 525000China Department of Neurology the Northern Guangdong People's HospitalShaoguan 512025China Department of Neurology and Stroke Center Dongzhimen Hospital affiliated to Beijing University of Chinese MedicineBeijing 100700China

OBJECTIVE:To investigate the short-term efficacy and safety outcomes following a sequential treatment with clearing heat and eliminating phlegm(CHEP)formula and tonifying Qi and activating blood circulation(TQABC)formula in patients with acute ischemic stroke(AIS)within a 72 h time ***:In this randomized,multicenter,doubleblinded,placebo-controlled trial,500 participants will be randomly assigned in a ratio of 1∶1 to the CHEP+TQABC group or control *** addition to guidelinebased standard medical care,participants in the treatment group will receive the CHEP formula for the first 5 consecutive days followed by the TQABC formula for another 10 consecutive days,while those in the control group will receive CHEP formula placebo and TQABC formula placebo *** primary outcome measure will be the comparison of the change in the National Institutes of Health Stroke Scale score from baseline to 15 days after *** secondary outcome measures will include the scores on the modified Rankin Scale,Barthel Index,Patient-Reported Outcomes,TCM symptom pattern(Zheng-hou)evaluation Scale,and the incidence of in-hospital *** assessment will include the physical examination,laboratory detection,any adverse events or serious adverse events,and the proportion of any complications during ***:The results of this study will provide objective and scientific data with which to assess the efficacy and safety of a sequential treatment based on“integrating disease and symptom pattern”for patients with AIS.

关键词： stroke clearing heat and eliminating phlegm tonifying Qi and activating blood circulation randomized controlled trial clinical protocols