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一种低压微电网中的分布式电压控制算法

电力系统保护与控制 2014年第20期42卷 75-80页

作者：殷桂梁侯嘉怡燕山大学电气工程学院河北秦皇岛066004

为了实现电压调节和提高供电能力,提出了一种在低压微电网中利用分布式电源(Distributed Generators,DGs)发出的有功来进行电压控制的分布式电压算法。针对低压微电网的线路阻抗特性,分析了电压和有功的关系。由系统线路结构建立通信链... 详细信息

为了实现电压调节和提高供电能力,提出了一种在低压微电网中利用分布式电源(Distributed Generators,DGs)发出的有功来进行电压控制的分布式电压算法。针对低压微电网的线路阻抗特性,分析了电压和有功的关系。由系统线路结构建立通信链路,并对电压超出上下限的母线初始化,计算出所需补偿的有功功率。基于本地信息,利用参数化状态转移矩阵对电压进行修正,并考虑了分布式电源的有功容量限制。通过该算法协调和分配各分布式电源所需承担的功率,共同作用实现电压控制。仿真结果表明该算法能够有效实现电压调节和减小电压偏差,提高电压质量。

关键词：分布式电源微电网电压控制有功功率分布式算法

Multi-twinned gold nanoparticles with tensile surface steps for efficient electrocatalytic COreduction

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Science China Chemistry 2022年

作者： Li-Wei Chen Yu-Chen Hao jia-Ni Li Lin-Yu Hu Yu Guo Shuai Li Di Liu Zhe-jia-Ji Zhu Si-Qian Wu Hui-Zi Huang An-Xiang yin Bo Wang Ya-Wen Zhang Ministry of Education Key Laboratory of Cluster Science Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsAdvanced Technology Research Institute (Jinan) School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and Applications PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry College of Chemistry and Molecular Engineering Peking University

COreduction reactions (CORR) powered by renewable electricity can directly convert COto hydrocarbons and fix the intermittent sustainable energy in portable chemical *** is of great importance to develop advanced catalysts that can boost CORR with high activity,selectivity,and efficiency at low ***,we report the solution synthesis using HOto modify the surface structures of gold multi-twinned nanoparticles (AuMPs) and create tensile surface *** predicted significantly enhanced COadsorption and boosted CORR capabilities with inhibited hydrogen evolution reaction activity for the tensile surface steps with modified electronic *** HO-treated AuMPs with surface steps and 3.83%tensile lattices showed much higher activity and selectivity at lower overpotentials for CORR than pristine gold *** CO-production current density reached about 98 mA cmwith a Faradaic efficiency of 95.7%at–0.30 V versus reversible hydrogen electrode in the flow cell,showing a half-cell energy efficiency as high as～83%.Our strategy represents a rational catalyst design by engineering the surface structures of metal nanoparticles and may find more applicability in future electrocatalysis.

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产业技术创新联盟内部风险管理研究——基于问卷调查的分析

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科学学研究 2013年第12期31卷 1848-1853,1847页

作者：殷群贾玲艳南京邮电大学经济与管理学院江苏南京210046

产业技术创新联盟作为技术创新的重要载体,在政府的倡导和支持下发展迅猛,在转型升级发展中发挥了积极作用。然而,许多产业技术创新联盟"联而不盟、联而不强",一些联盟组建不久解体失败,究其原因,内部风险管理不善是重要原因。本文聚焦... 详细信息

产业技术创新联盟作为技术创新的重要载体,在政府的倡导和支持下发展迅猛,在转型升级发展中发挥了积极作用。然而,许多产业技术创新联盟"联而不盟、联而不强",一些联盟组建不久解体失败,究其原因,内部风险管理不善是重要原因。本文聚焦于产业技术创新联盟中内部风险,在内部风险分类识别的基础上,通过问卷调查,深入分析产业技术创新联盟内部风险成因;进而针对产业技术创新联盟内部风险提出管理对策建议。

关键词：产业技术创新联盟风险识别成因管理

Functional assessment of transplanted kidneys with magnetic resonance imaging

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World Journal of Radiology 2015年第10期7卷 343-349页

作者： Yu-Ting Wang ying-Chun Li Long-Lin yin Hong Pu jia-Yuan Chen Department of Radiology Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital

Kidney transplantation has emerged as the treatment of choice for many patients with end-stage renal disease, which is a significant cause of morbidity and mortality. Given the shortage of clinically available donor kidneys and the significant incidence of allograft dysfunction, a noninvasive and accurate assessment of the allograft renal function is critical for postoperative management. Prompt diagnosis of graft dysfunction facilitates clinical intervention of kidneys with salvageable function. New advances in magnetic resonance imaging(MRI) technology have enabled the calculation of various renal parameters that were previously not feasible to measure noninvasively. Diffusion-weighted imaging provides information on renal diffusion and perfusion simultaneously, with quantification by the apparent diffusion coefficient, the decrease of which reflects renal function impairment. Diffusion-tensor imaging accounts for the directionality of molecular motion and measures fractional anisotropy of the kidneys. Blood oxygen level-dependent MR evaluates intrarenal oxygen bioavailability, generating the parameter of R2*(reflecting the concentration of deoxyhemoglobin). A decrease in R2* could happen during acute rejection. MR nephro-urography/renography demonstrates structural data depicting urinary tract obstructions and functional data regarding the glomerular filtration and blood flow. MR angiography details the transplant vasculature and is particularly suitable for detecting vascular complications, with good correlation with digital subtraction angiography. Other functional MRI technologies, such as arterial spin labeling and MR spectroscopy, are showing additional promise. This review highlights MRI as a comprehensive modality to diagnose a variety of etiologies of graft dysfunction, including prerenal(e.g., renal vasculature), renal(intrinsic causes) and postrenal(e.g., obstruction of the collecting system) etiologies.

关键词： Magnetic resonance imaging Diffusionweighted imagi

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当代人工智能表征的分解方法及其问题

科学技术与辩证法 2009年第2期26卷 23-28,89页

作者：殷杰董佳蓉山西大学科学技术哲学研究中心山西太原030006

分解方法是建立在形式系统之上的人工智能表征的必然选择,也是造成现阶段人工智能表征在自然语言语义理解方面各种瓶颈问题的理论根源。文章认为,句子层次结构以及三个平面的划界理论是分解方法难以实现段落或篇章语义理解的关键所在。... 详细信息

分解方法是建立在形式系统之上的人工智能表征的必然选择,也是造成现阶段人工智能表征在自然语言语义理解方面各种瓶颈问题的理论根源。文章认为,句子层次结构以及三个平面的划界理论是分解方法难以实现段落或篇章语义理解的关键所在。基于词汇的语境描写方法难以突破单句限制,人工智能表征要想获得突破,就必须借助基于段落或篇章的整体性语境描写方法,而这正是分解方法所缺失的。多年来,人工智能表征取得的成就表明,脱离分解方法去谈整体性语境构建方法是不切实际的。整体性语境构建方法应当以分解方法为基础,二者之间是一脉相承而非矛盾的关系。二者的有机融合,是解决人工智能表征分解方法瓶颈的关键所在。

关键词：人工智能表征分解方法整体性语境构建方法

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中美日产业技术创新联盟三重驱动分析

中国软科学 2012年第9期 80-89页

作者：殷群贾玲艳南京邮电大学经济与管理学院江苏南京210046

组建产业技术创新联盟,日本和美国均取得预期成效,我国起步较晚但发展迅速。日本经验表明政府可以通过立法、政策和计划经费支持产业共性技术和竞争前技术的研究开发;美国经验表明市场经济国家发展产业技术创新联盟仍有赖政府有所作为;... 详细信息

组建产业技术创新联盟,日本和美国均取得预期成效,我国起步较晚但发展迅速。日本经验表明政府可以通过立法、政策和计划经费支持产业共性技术和竞争前技术的研究开发;美国经验表明市场经济国家发展产业技术创新联盟仍有赖政府有所作为;我国产业技术创新联盟近年来在政府引导下发展迅速,拥有了明确的组建思路和良好的发展态势,但还需要在立法促进、利益分享和人际协调等三重驱动下实现协同优化。

关键词：产业创新联盟三重驱动协同

COVID-19 Super Spreading Event Amongst Elderly Individuals—Jilin Province,China,January 2021

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China CDC weekly 2021年第10期3卷 211-213页

作者： Laishun Yao Mingyu Luo Tiewu jia Xingang Zhang Zhulin Hou Feng Gao Xin Wang Xiaogang Wu Weihua Cheng Guoqian Li Jing Lu Bing Zhao Tao Li Enfu Chen Dapeng yin Biao Huang Jilin Center for Disease Control and Prevention ChangchunJilinChina Zhejiang Center for Disease Control and Prevention HangzhouZhejiangChina Chinese Center for Disease Control and Prevention BeijingChina Tonghua Center for Disease Control and Prevention TonghuaJilinChina.

Summary What is already known on this topic?Clusters of COVID-19 cases often happened in small settings(e.g.,families,offices,school,or workplaces)that facilitate person-to-person virus transmission,especially from a common *** is added by this report?On January 10 and 11,2021,an individual gave three product promotional lectures in Tonghua City.

关键词： promotion Jilin happen

Fecal microbiota transplantation induces remission of infantile allergic colitis through gut microbiota re-establishment

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World Journal of Gastroenterology 2017年第48期23卷 8570-8581页

作者： Sheng-Xuan Liu yin-Hu Li Wen-Kui Dai Xue-Song Li Chuang-Zhao Qiu Meng-Ling Ruan Biao Zou Chen Dong Yan-Hong Liu jia-Yi He Zhi-Hua Huang Sai-Nan Shu Department of Pediatrics Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030Hubei ProvinceChina Department of Microbial Research We Health Gene InstituteShenzhen 518000Guangdong ProvinceChina Department of Computer Science College of Science and EngineeringCity University of Hong KongHong KongChina

AIM To investigate the impact of fecal microbiota transplantation(FMT) treatment on allergic colitis(AC) and gut microbiota(GM).METHODS We selected a total of 19 AC infants,who suffered from severe diarrhea/hematochezia,did not relieve completely after routine therapy or cannot adhere to the therapy,and were free from organ congenital malformations and other contraindications for FMT. Qualified donor-derived stools were collected and injected to the AC infants via a rectal tube. Clinical outcomes and follow-up observations were noted. Stools were collected from ten AC infants before and after FMT,and GM composition was assessed for infants and donors using 16 S r DNA sequencing *** After FMT treatment,AC symptoms in 17 infants were relieved within 2 d,and no relapse was observed in the next 15 mo. Clinical improvement was also detected in the other two AC infants who were lost to followup. During follow-up,one AC infant suffered from mild eczema and recovered shortly after hormone therapy. Based on the 16 S r DNA analysis in ten AC infants,most of them(n = 6) had greater GM diversity after FMT. As a result,Proteobacteria decreased(n = 6) and Firmicutes increased(n = 10) in post-FMT AC infants. Moreover,Firmicutes accounted for the greatest proportion of GM in the patients. At the genus level,Bacteroides(n = 6),Escherichia(n = 8),and Lactobacillus(n = 4) were enriched in some AC infants after FMT treatment,but the relative abundances of Clostridium(n = 5),Veillonella(n = 7),Streptococcus(n = 6),and Klebsiella(n = 8) decreased *** FMT is a safe and effective method for treating pediatric patients with AC and restoring GM balance.

关键词： Pediatric Infantile allergic colitis Fecal microbiota transplantation Gut microbiota Immune reaction

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基于消息重要性的机会网络能量均衡路由算法

通信学报 2018年第12期39卷 91-101页

作者：陈志刚殷滨安吴嘉中南大学软件学院湖南长沙410075 "移动医疗"教育部-中国移动联合实验室湖南长沙410083

提出了基于消息重要性的能量均衡路由算法——MIEBR(message importance based energy balanced routing algorithm)。MIEBR对消息重要性进行度量,并根据消息转发收益确定消息的转发顺序和路由。在节点缓存空间不足时,MIEBR依据消息缓... 详细信息

提出了基于消息重要性的能量均衡路由算法——MIEBR(message importance based energy balanced routing algorithm)。MIEBR对消息重要性进行度量,并根据消息转发收益确定消息的转发顺序和路由。在节点缓存空间不足时,MIEBR依据消息缓存价值进行缓存替换。实验结果表明,在缓存空间和能量受限的机会网络中,MIEBR均衡节点的能量消耗,降低了重要消息的传输延时,在投递成功率和延时等方面优于其他算法。

关键词：机会网络路由算法消息重要性能量均衡