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基于储能参与的电网连锁跳闸主动防控方法

电力系统自动化 2024年第1期48卷 119-130页

作者：余鹏飞熊小伏朱继忠何祥桢南东亮输配电装备及系统安全与新技术国家重点实验室(重庆大学) 重庆市400044 华南理工大学电力学院广东省广州市510641 国网新疆电力有限公司电力科学研究院新疆维吾尔自治区乌鲁木齐市830011

新型电力系统中系统惯性降低及触发连锁跳闸风险因素的增多,使得防范连锁跳闸的重要性愈发凸显。针对这一问题,提出一种融合储能的电网连锁跳闸抑制方法。利用储能的快速响应特性,在潮流转移初期即投入储能调控电网潮流,可快速抑制导线... 详细信息

新型电力系统中系统惯性降低及触发连锁跳闸风险因素的增多,使得防范连锁跳闸的重要性愈发凸显。针对这一问题,提出一种融合储能的电网连锁跳闸抑制方法。利用储能的快速响应特性,在潮流转移初期即投入储能调控电网潮流,可快速抑制导线温升,为后续水火电机组及其他慢速响应的备用电源参与调控赢得时间。文中提出了基于网络动态最大电气介数、风险扫描和需量计算的“三要素法”储能配置决策方法,包括构建反映网络薄弱环节和时变风险的连锁跳闸防控预案,解决了连锁跳闸抑制的储能资源时空选择问题;基于输电线路动态热特性,提出了储能与水火电协同调控时的储能功率和容量计算方法,确定了防范连锁跳闸所需要的储能资源规模。针对IEEE 30节点网络给出了N-1和N-2故障计算案例,验证了所提方法的有效性。

关键词：连锁跳闸快速响应潮流继电保护输电线路动态热特性储能

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马克思剩余劳动概念的伦理意蕴

理论视野 2024年第6期292卷 5-10页

作者：寇东亮陕西师范大学哲学学院

剩余劳动概念在马克思剩余价值理论的创建和唯物史观的完善中具有至关重要的意义,它关涉剩余价值源泉、剥削秘密、脑体分工、物质财富、自由时间、人的全面发展等主题,具有丰富的伦理意蕴。这主要表现在三个方面:一是通过“劳动力商品... 详细信息

剩余劳动概念在马克思剩余价值理论的创建和唯物史观的完善中具有至关重要的意义,它关涉剩余价值源泉、剥削秘密、脑体分工、物质财富、自由时间、人的全面发展等主题,具有丰富的伦理意蕴。这主要表现在三个方面:一是通过“劳动力商品”批判和“剩余劳动时间”分析,凸显剩余劳动概念的生命伦理意蕴;二是通过“脑体劳动分工”批判和“剩余劳动产品”分析,凸显剩余劳动概念的劳动伦理意蕴;三是通过“为生产而生产”批判和“剩余劳动积累”分析,凸显剩余劳动概念的财富伦理意蕴。

关键词：马克思剩余劳动生命财富伦理

New Strategy for Boosting Cathodic Performance of Protonic Ceramic Fuel Cells Through Incorporating a Superior Hydronation Second Phase

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Energy & Environmental Materials 2024年第4期7卷 83-92页

作者： Chuan Zhou Xixi Wang dongliang Liu Meijuan Fei Jie Dai Daqin Guan Zhiwei Hu Linjuan Zhang Yu Wang Wei Wang Ryan O'Hayre San Ping Jiang Wei Zhou Meilin Liu Zongping Shao State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University Max Planck Institute for Chemical Physics of Solids Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied Physics Chinese Academy of Sciences Department of Metallurgical and Materials Engineering Colorado School of Mines WA School of Mines: Minerals Energy and Chemical Engineering (WASM-MECE) Curtin University Suzhou Laboratory School of Materials Science and Engineering Georgia Institute of Technology

For protonic ceramic fuel cells,it is key to develop material with high intrinsic activity for oxygen activation and bulk proton conductivity enabling water formation at entire electrode ***,a higher water content which benefitting for the increasing proton conductivity will not only dilute the oxygen in the gas,but also suppress the O2adsorption on the electrode surface.

关键词： cathode high-hydrating capability proton conductivity protonic ceramic fuel cells

装配式建筑安全事故承灾体脆弱性评价指标体系构建——基于Apriori算法

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沈阳建筑大学学报（社会科学版） 2020年第3期22卷 259-264页

作者：姜东民张哲何栋良青岛理工大学管理工程学院山东青岛266520

从装配式建筑安全事故发生作用的承灾体入手,运用文献分析法,以从知网搜集获取的40余篇相关文献为基础指标库,整理出45个最初指标,采用Apriori算法挖掘频繁1项集,筛选出符合要求的初步指标,并结合建筑安全事故情况和承灾体类型进行了分... 详细信息

从装配式建筑安全事故发生作用的承灾体入手,运用文献分析法,以从知网搜集获取的40余篇相关文献为基础指标库,整理出45个最初指标,采用Apriori算法挖掘频繁1项集,筛选出符合要求的初步指标,并结合建筑安全事故情况和承灾体类型进行了分析,进一步删减、分类,最终形成了装配式建筑事故承灾体脆弱性评价指标体系,为进一步开展脆弱性评价奠定了基础。

关键词： Apriori算法装配式建筑脆弱性评价指标体系

建筑工程施工安全生产管理研究--基于事故致因理论与数据挖掘技术

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沈阳建筑大学学报（社会科学版） 2021年第6期23卷 605-611页

作者：姜东民何栋良张哲青岛理工大学管理工程学院山东青岛266500 山东省高校智慧城市建设管理研究中心山东青岛266500

为厘清施工安全生产关键因素、降低安全生产事故率,针对收集的大量施工安全生产事故实例,运用事故致因理论与数据挖掘技术分析了事故发生机理,并建立了施工安全生产事故致因模型来分解事故致因。提供了使原始信息能被数据挖掘技术识别... 详细信息

为厘清施工安全生产关键因素、降低安全生产事故率,针对收集的大量施工安全生产事故实例,运用事故致因理论与数据挖掘技术分析了事故发生机理,并建立了施工安全生产事故致因模型来分解事故致因。提供了使原始信息能被数据挖掘技术识别的数据处理思路,利用数据挖掘技术中的关联分析技术发现频繁集项和关联关系,以此探寻施工安全生产的关键环节。通过对443起施工安全生产事故信息进行处理获得事故数据,从组织、技术、资源、培训、应急管理5个方面建立了事故致因模型,并分解事故数据,建立事故致因数据库,运用Apriori算法挖掘出17个频繁集项与5条强关联关系,经过分析得出了其致因机理并提出了管控建议。

关键词：建筑工程施工安全生产事故致因数据挖掘关联分析

Neoadjuvant camrelizumab(an anti-PD-1 antibody)plus chemotherapy or apatinib(a VEGFR-2 inhibitor)for initially unresectable stage II–III non-small-cell lung cancer:a multicentre,two-arm,phase 2 exploratory study

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Signal Transduction and Targeted Therapy 2024年第7期9卷 3015-3023页

作者： Haoran Xia Han Zhang Zheng Ruan Huibiao Zhang Liangdong Sun hezhong Chen Yongxin Zhou Lele Zhang dongliang Bian Xinsheng Zhu Jing Zhang Fenghuan Sun Huansha Yu Nan Song Xiaogang Liu Yuming Zhu Haiping Zhang Wenxin he Jian Chen Jie Yang Guohan Chen Shiliang Xie Dongfang Tang Xiaomiao Zhang Liang Duan Deping Zhao Qinchuan Li Peng Zhang Gening Jiang Department of Thoracic Surgery Shanghai Pulmonary HospitalTongji University School of MedicineShanghaiChina Department of Thoracic Surgery Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Department of Thoracic Surgery Huadong Hospital Affiliated to Fudan UniversityShanghaiChina Department of Thoracic Surgery Changhai HospitalNaval Medical UniversityShanghaiChina Department of Thoracic-Cardiovascular Surgery Tongji HospitalTongji University School of MedicineShanghaiChina Central Laboratory Shanghai Pulmonary HospitalTongji University School of MedicineShanghaiChina Experimental Animal Center Shanghai Pulmonary HospitalTongji University School of MedicineShanghaiChina Department of Oncology Shanghai Pulmonary HospitalTongji University School of MedicineShanghaiChina Department of Thoracic Surgery Shanghai East HospitalTongji University School of MedicineShanghaiChina

This multicentre,two-arm,phase 2 study aimed to explore the efficacy and safety of neoadjuvant camrelizumab plus chemotherapy or apatinib in patients with initially unresectable stage II–III non-small-cell lung cancer(NSCLC).Eligible patients regardless of PD-L1 expression received neoadjuvant camrelizumab 200 mg and platinum-doublet chemotherapy every 3 weeks(arm A)or those with PD-L1-positive tumors received neoadjuvant camrelizumab and apatinib 250 mg once daily(arm B),for 2–4 cycles,followed by *** primary endpoint was major pathological response(MPR)*** patients in arm A and 21 in arm B were *** rates were 50.0%(15/30)in arm A and 42.9%(9/21)in arm B,with all patients achieving R0 *** these patients,the MPR and pathological complete response rates were both 20.0%(95%CI 4.3–48.1)in arm A and were 55.6%(95%CI 21.2–86.3)and 11.1%(95%CI 0.3–48.2)in arm B,*** corresponding objective response rates were 33.3%(95%CI 11.8–61.6)and 55.6%(95%CI 21.2–86.3).With a median follow-up of 22.4 months(95%CI 19.0–26.0),the median event-free survival was not reached(NR;95%CI 13.6-NR)in arm A and 16.8 months(95%CI 8.6-NR)in arm *** 3 or above treatment-related adverse events occurred in eight(26.7%)patients in arm A and three(14.3%)in arm *** analysis showed baseline TYROBP expression was predictive of treatment response in arm *** camrelizumab plus chemotherapy or apatinib exhibits preliminary efficacy and manageable toxicity in patients with initially unresectable stage II–III NSCLC.

关键词： Surgery chemotherapy treatment

High energy storage density in NaNbO_(3) antiferroelectrics with double hysteresis loop

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Journal of Materiomics 2024年第5期10卷 1026-1035页

作者： Li Ma Zhenpei Chen Gengguang Luo Zhiyi Che Chao Xu dongliang Shan Zhenyong Cen Qin Feng Xiyong Chen Toyohisa Fujita Ye Zhu Yunya Liu Jing-Feng Li Shujun Zhang Nengneng Luo State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures School of ResourcesEnvironment and MaterialsGuangxi UniversityNanning530004China School of Chemistry and Chemical Engineering Guangxi UniversityNanning530004China Department of Applied Physics Research Institute for Smart EnergyThe Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education School of Materials Science and EngineeringXiangtan UniversityXiangtan411105HunanChina State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing100084China Institute for Superconducting and Electronic Materials Australian Institute of Innovative MaterialsUniversity of WollongongWollongongNSW2500Australia

Antiferroelectrics(AFEs)possess great potential for high performance dielectric capacitors,due to their distinct double hysteresis loop with high maximum polarization and low remnant ***,the well-known NaNbO3 lead-free antiferroelectric(AFE)ceramic usually exhibits square-like P–E loop related to the irreversible AFE P phase to ferroelectric(FE)Q phase transition,yielding low recoverable energy storage density(Wrec).herein,significantly improved Wrec up to 3.3 J/cm^(3) with good energy storage efficiency(η)of 42.4% was achieved in Na_(0.7)Ag_(0.3)Nb_(0.7)Ta_(0.3)O_(3)(30Agsingle bond30Ta)ceramic with well-defined double P–E loop,by tailoring the A-site electronegativity with Ag+and B-site polarizability with Ta^(5+).The Transmission Electron Microscope,Piezoresponse Force Microscope and in-situ Raman spectra results verified a good reversibility between AFE P phase and high-field-induced FE Q *** improved stability of AFE P phase,being responsible for the double P–E loop and improved Wrec,was attributed to the decreased octahedral tilting angles and cation *** mechanism was revealed by synchrotron X-ray diffraction and Scanning Transmission Electron *** work provides a good paradigm for achieving double P–E loop and high energy storage density in NaNbO_(3)-based ceramics.

关键词： Sodium niobate Antiferroelectrics Double hysteresis loop Energy storage performance Reversibility

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乳杆菌产L-乳酸发酵条件的研究

农产品加工（下） 2005年第8期 43-44页

作者：贺东亮李久长中北大学分校环境工程系太原030008 山西大学生命科学与技术学院太原030006

通过单因子试验确定了乳杆菌L-110产L-乳酸的碳源、氮源和最适pH值,运用正交试验对摇瓶发酵条件做了初步的研究,确定了发酵培养基中影响产酸率的主要因子的配比,优化发酵培养基为(g/L):葡萄糖100,豆粉40,磷酸氢二钾2,吐温801,硫酸镁0.1... 详细信息

通过单因子试验确定了乳杆菌L-110产L-乳酸的碳源、氮源和最适pH值,运用正交试验对摇瓶发酵条件做了初步的研究,确定了发酵培养基中影响产酸率的主要因子的配比,优化发酵培养基为(g/L):葡萄糖100,豆粉40,磷酸氢二钾2,吐温801,硫酸镁0.1,硫酸锰0.05;培养条件为:一次性添加碳酸钙50g/L,装液量为250mL瓶装50mL培养基,静置培养,温度为37℃。其摇瓶发酵L—乳酸产量可达80g/L。

关键词：乳杆菌 L-乳酸正交试验

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适用于无静默期的双门限频谱检测算法

桂林电子科技大学学报 2015年第2期35卷 105-109页

作者：贺栋梁肖海林桂林电子科技大学信息与通信学院广西桂林541004

针对传统的能量检测需要静默期且低信噪比下检测概率不高的问题,提出适用于无静默期的双门限频谱检测算法。利用OFDM信号循环前缀的特征消除认知用户干扰,以构建无静默期的能量检测;设置优化门限与固定门限,通过比较二者大小,提出高信... 详细信息

针对传统的能量检测需要静默期且低信噪比下检测概率不高的问题,提出适用于无静默期的双门限频谱检测算法。利用OFDM信号循环前缀的特征消除认知用户干扰,以构建无静默期的能量检测;设置优化门限与固定门限,通过比较二者大小,提出高信噪比下使用优化门限的能量检测方法以及低信噪比下结合能量检测与循环平稳特征检测的联合频谱检测方法,消除静默期,以提高低信噪比下的检测概率。数值分析表明,与传统能量检测算法相比,该算法在低信噪比下的检测概率提高15%~30%,同时在高信噪比下的虚警概率降低5%。

关键词：频谱检测静默期能量检测循环平稳特征检测双门限