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| 1 | 直流微电网储能系统中带有母线电压跌落补偿功能的负荷功率动态分配方法显示文摘为了充分发挥直流微网中储能系统的作用,提出一种适用于直流分布式储能系统的基于储能单元剩余容量(stateof charge,SOC)的改进下垂控制方法。利用该方法可以实现负荷功率在不同储能单元之间的动态分配。该方法中设置传统下垂控制中的下垂系数和储能单元SOC的n次幂呈反比。通过改变SOC的幂指数n,可以实现对SOC及输出功率均衡速率的调整。由于该控制方法基于下垂控制实现,因此会带来直流母线电压跌落。该文引入二次控制方法,以提升母线电压至其额定取值。传统的二次控制针对固定系数的下垂控制进行母线电压跌落补偿,而在改进的下垂控制方法中,下垂系数根据SOC改变,以扰动的形式作用于二次控制系统。该文验证了二次控制对于改进下垂控制方法的适用性,建立了控制结构的整体模型,并根据该模型对控制系统的稳定性进行了验证。利用Matlab/Simulink进行了仿真验证,并搭建了基于dSPACE1103的2×2.2 kW样机平台,对所提出的控制结构进行了实验验证。 | 陆晓楠 孙凯 黄立培 肖曦 Josep M.Guerrero | 2013 | 中国电机工程学报2013,33,16: | 93 |
| 2 | 适用于交直流混合微电网的直流分层控制系统显示文摘为了改进交直流混合微电网中直流侧的母线电压性能,本文提出了直流分层控制系统,以在各接口变换器之间合理分配直流负荷,同时补偿下垂控制带来的直流母线电压跌落。所介绍的分层控制系统包括两层:第一层控制直流母线电压和交流电流,同时通过下垂控制实现直流侧的负荷功率分配;第二层补偿下垂控制带来的电压跌落,进一步提升母线电压质量。在第二层控制中,采用了具有低带宽通信特点的公共控制器,满足了微电网分布式结构的需要。本文给出了各控制层的具体设计方法。同时,对第二层控制的低带宽通信特性进行了具体的理论分析。仿真和实验结果表明了理论分析的正确性。 | 陆晓楠 孙凯 Josep Guerrero 黄立培 | 2013 | 电工技术学报2013,28,4: | 71 |
| 3 | 植物中鱼藤酮类化合物检测方法的改进显示文摘现有分析鱼藤酮的高效液相色谱方法是针对鱼藤酮的检测而建立的 ,因此它不适合于鱼藤酮类化合物的分析检测。比较鱼藤酮类化合物的UV吸收光谱发现 ,原方法中的检测波长 (2 80nm~ 30 0nm)不适于鱼藤素、毛鱼藤酮及其类似物的检测。通过试验确定适合鱼藤酮类化合物的检测波长为 2 40nm。用CHCl3 MeOH(体积比 9∶1)溶剂提取出的植物中的鱼藤酮类化合物 ,经C18柱进行色谱分离后 ,以MeOH H2 O(体积比 6 6∶34 )为洗脱剂对鱼藤酮类化合物进行等度洗脱。实验结果表明 ,改进的方法可一次性分离检测出鱼藤酮、鱼藤素、毛鱼藤酮及其 12a 羟基 和 6a ,12a 脱氢 类似物 ,各峰分离良好。 | 曾鑫年 COLL Josep 张善学 刘新清 CAMPS Francisco | 2002 | 色谱2002,20,2: | 22 |
| 4 | 基于分层控制的微电网并网谐波电流主动抑制控制策略显示文摘采用传统下垂控制的电压源型逆变器并联构成的微电网,由于其等效输出阻抗较小,当微电网与电网并联运行时,易受到电网并网点电压谐波分量扰动的影响,使微电网并网电流总谐波畸变率升高。提出一种基于分层控制的微电网并网电流电能质量主动提升控制策略,首先利用Park变换将并网点与微电网交流母线的误差电压变换到旋转坐标系下,并在原微电网的二层控制中添加误差电压补偿环路,利用补偿环路中的并联多重谐振控制器对该误差电压进行运算,得到底层电压源型逆变器的谐波电压补偿量,同时在逆变器电压电流内环采用基于旋转坐标系的比例积分与谐振混合控制器,提高逆变器对谐波电压补偿量的跟踪能力,进而减少微电网交流母线与并网点间的谐波电压差,从而降低微电网向电网注入的谐波电流。通过分析表明,本文所述控制策略不仅可减少微电网向电网注入的稳态谐波电流,还可以降低由于并网开关闭合导致电网对微电网的谐波电流冲击。最后,通过仿真和实验验证了所提控制策略的有效性。 | 冯伟 孙凯 关雅娟 Josep M.Guerrero 肖曦 | 2018 | 电工技术学报2018,33,6: | 20 |
| 5 | QMEC:a tool for high-throughput quantitative assessment of microbial functional potential in C,N,P,and S biogeochemical cycling显示文摘Microorganisms are major drivers of elemental cycling in the biosphere. Determining the abundance of microbial functional traits involved in the transformation of nutrients, including carbon(C), nitrogen(N), phosphorus(P) and sulfur(S), is critical for assessing microbial functionality in elemental cycling. We developed a high-throughput quantitative-PCR-based chip, Quantitative microbial element cycling(QMEC), for assessing and quantifying the genetic potential of microbiota to mineralize soil organic matter and to release C, N, P and S. QMEC contains 72 primer pairs targeting 64 microbial functional genes for C, N, P, S and methane metabolism. These primer pairs were characterized by high coverage(average of 18–20 phyla covered per gene)and sufficient specificity(>70% match rate) with a relatively low detection limit(7–102 copies per run). QMEC was successfully applied to soil and sediment samples, identifying significantly different structures, abundances and diversities of the functional genes(P<0.05). QMEC was also able to determine absolute gene abundance. QMEC enabled the simultaneous qualitative and quantitative determination of 72 genes from 72 samples in one run, which is promising for comprehensively investigating microbially mediated ecological processes and biogeochemical cycles in various environmental contexts including those of the current global change. | Bangxiao Zheng Yongguan Zhu Jordi Sardans Josep Penuelas Jianqiang Su | 2018 | Science China(Life Sciences)2018,61,12: | 18 |
| 6 | 考虑电池储能系统荷电状态的有功功率协调控制显示文摘微电网孤岛运行时,若供需存在较长时间的不平衡,传统的无互联信号线有功功率协调控制可能导致电池储能系统(BESS)荷电状态(SOC)超出安全运行范围。针对该问题,提出了一种考虑SOC的多BESS与可再生能源(RES)间的分布式有功功率协调控制策略。该方法通过基于瞬时功率的变斜率下垂控制、基于SOC的恒功率比例—积分(PI)下垂控制以及基于母线频率的功率下垂控制的集成来实现有功功率的无互联信号线自治协调控制。所提控制方法不仅可简单植入BESS和RES的控制系统中而无需修改其内环控制结构,而且能使SOC处于安全范围的同时最大化RES利用。实时仿真结果表明了所提策略的有效性。 | 唐芬 姜久春 吴丹 周啸 Josep M.GUERRERO | 2015 | 电力系统自动化2015,39,22: | 18 |
| 7 | Land use effects on terrestrial carbon sources and sinks显示文摘Current and past land use practices are critical in determining the distribution and size of global terrestrial carbon (C) sources and sinks. Althoughfossil fuel emissions dominate the anthropogenic perturbation of the global C cycle, land use still drives the largest portion of anthropogenic emissions in a number of tropical regions of Asia. The size of the emission flux owing to land use change is still the biggest uncertainty in the global C budget. The Intergovernmental Panel on Climate Change (IPCC) reported a flux term of 1.7 PgC@a-1 for 1990-1995 but more recent estimates suggest the magnitude of this source may be only of 0.96 PgC@a-1 for the 1990s. In addition, current and past land use practices are now thought to contribute to a large degree to the northern hemisphere terrestrial sink, and are the dominant driver for some regional sinks. However, mechanisms other than land use change need to be invoked in order to explain the inferred C sink in the tropics. Potential candidates are the carbon dioxide (CO2) fertilization and climate change; fertilization due to nitrogen (N) deposition is believed to be small or nil. Although the potential for managing C sinks is limited, improved land use management and new land uses such as reforestation and biomass fuel cropping, can further enhance current terrestrial C sinks. Best management practices in agriculture alone could sequester 0.4-0.8 PgC per year in soils if implemented globally. New methodologies to ensure verification and permanency of C sequestration need to be developed. | Josep G. Canadell | 2002 | Science China(Life Sciences)2002,45,z1: | 17 |
| 8 | 一种可实现微网系统快速平滑并网的主动同步控制策略显示文摘为实现微网系统从孤岛运行模式到并网运行模式的平滑过渡,微网与主电网的同步是首要考虑的问题。提出了一种新型基于锁相环原理的主动同步控制策略,该方法通过主动调节微网母线电压的频率、相角和幅值跟踪主电网电压,从而减小并网时刻的电压偏差,达到孤岛模式向并网模式的平滑过渡。同时,采用电压矢量叉积作为鉴相器,微网频率和相角可同时快速有效地跟踪电网频率和相角。并且该方案不需传递相位等时域信号,仅需依赖于低带宽的通信,原理简单、易于实施。最后,实时硬件在环仿真与实验结果表明,该控制方案可实现微网快速平滑并网。 | 唐芬 Josep M.GUERRERO 周啸 马添翼 Juan C.VASQUEZ | 2014 | 电力系统自动化2014,38,8: | 17 |
| 9 | Hepatocellular carcinoma显示文摘 | Alejandro Forner Josep M Llovet Jordi Bruix | 2012 | The Lancet2012,,9822: | 15 |
| 10 | 中大功率单级功率因数校正变换器中的偏磁分析及其数字化抑制技术显示文摘单级型功率因数校正变换器(power factor corrector,PFC)由于具有功率密度高和电气隔离等特点,在工业界某些应用场合得到应用,然而,用于该拓扑的变压器很容易饱和。基于隔离型全桥拓扑,分析单级型PFC变换器中变压器偏磁产生机理,并推导出每个工频周期内最大的理论偏磁值。对传统偏磁抑制方案进行分析,阐述数字控制本身对偏磁抑制的原理,提出一种能对偏磁有效抑制的数字补偿方案。新型数字控制方案能够避免传统方案所带来的诸如占空比减小和效率降低等问题,且不会增加电路复杂度。通过额定输出功率为5.1kW的样机验证了所提出的偏磁抑制方案的有效性和优越性。样机满载功率因数达到0.994,效率超过92%。 | 杭丽君 吕征宇 Josep M. Guerrero | 2009 | 中国电机工程学报2009,29,3: | 14 |
| 11 | Hepatocellular carcinoma显示文摘 | Alejandro Forner Josep M Llovet Jordi Bruix | 2012 | The Lancet . 2012 (9822)2012,,9822: | 13 |
| 12 | Helicobacter pylori infection as a cause of iron deficiency anaemia of unknown origin显示文摘AIM: To assess the aetiological role of Helicobacter pylori (H. pylori) infection in adult patients with ironrefractory or iron-dependent anaemia of previously unknown origin. METHODS: Consecutive patients with chronic irondeficient anaemia (IDA) with H. pylori infection and a negative standard work-up were prospectively evaluated. All of them had either iron refractoriness or iron dependency. Response to H. pylori eradication was assessed at 6 and 12 mo from follow-up. H. pylori infection was considered to be the cause of the anaemia when a complete anaemia resolution without iron supplements was observed after eradication. RESULTS: H. pylori was eradicated in 88 of the 89 patients. In the non-eradicated patient the four eradicating regimens failed. There were violations of protocol in 4 patients, for whom it was not possible to ascertain the cause of the anaemia. Thus, 84 H. pylori eradicated patients (10 men; 74 women) were available to assess the effect of eradication on IDA. H. pylori infection was considered to be the aetiology of IDA in 32 patients (38.1%; 95%CI: 28.4%-48.8%). This was more frequent in men/postmenopausal women than in premenopausal women (75% vs 23.3%; P < 0.0001) with an OR of 9.8 (95%CI: 3.3-29.6). In these patients, anaemia resolution occurred in the first follow-up visit at 6 mo, and no anaemia or iron deficiency relapse was observed after a mean follow-up of 21 ± 2 mo. CONCLUSION: Gastric H. pylori infection is a frequent cause of iron-refractory or iron-dependent anaemia of previously unknown origin in adult patients. | Helena Monzón Montserrat Forné Maria Esteve Mercé Rosinach Carme Loras Jorge C Espinós Josep M Viver Antonio Salas Fernando Fernández-Baares | 2013 | World Journal of Gastroenterology2013,19,26: | 13 |
| 13 | Systematic review of randomized trials for unresectable hepatocellular carcinoma: Chemoembolization improves survival显示文摘 | Josep M. Llovet Jordi Bruix | 2003 | Hepatology2003,,2: | 12 |
| 14 | Clinical Management of Hepatocellular Carcinoma. Conclusions of the Barcelona-2000 EASL Conference显示文摘 | Jordi Bruix Morris Sherman Josep M Llovet Michel Beaugrand Riccardo Lencioni Andrew K Burroughs Erik Christensen Luigi Pagliaro Massimo Colombo Juan Rodés | 2001 | Journal of Hepatology2001,,3: | 11 |
| 15 | Prognosis of Hepatocellular Carcinoma: The BCLC Staging Classification显示文摘 | Josep Llovet Concepció Brú Jordi Bruix | 1999 | Semin Liver Dis1999,,03: | 11 |
| 16 | Regorafenib monotherapy for previously treated metastatic colorectal cancer (CORRECT): an international, multicentre, randomised, placebo-controlled, phase 3 trial显示文摘 | Axel Grothey Eric Van Cutsem Alberto Sobrero Salvatore Siena Alfredo Falcone Marc Ychou Yves Humblet Olivier Bouché Laurent Mineur Carlo Barone Antoine Adenis Josep Tabernero Takayuki Yoshino Heinz-Josef Lenz Richard M Goldberg Daniel J Sargent Frank Ciho | 2012 | The Lancet2012,,: | 10 |
| 17 | 基于相互作用关系的中国省际人口流动研究显示文摘基于2000年、2010年人口普查及2005年、2015年人口抽样调查数据,采用相互作用关系模型计算了中国'人口流动系统'和'单向相互作用关系值'。结果表明:(1)人口流动具有明显的凝聚性,东部地区对流动人口的吸引力依然具有绝对优势;(2)省际人口流动呈'非对称双向迁移模式',人口回流的趋势已不容忽视;(3)长三角地区逐渐代替珠三角成为新的人口流动中心,人口流动开始北移;(4)中西部地区的人口流动分中心某种意义上已经出现,人口就近转移日渐凸显。将2010-2015年间省际人口流动新规律和特征与1995-2010年进行动态对比,对于制定未来人口和区域发展政策,继续缩小东西部地区之间的差距,最终实现区域协调发展具有重要意义。 | 豆晓 ARELLANO Blanca ROCA Josep | 2018 | 地理研究2018,37,9: | 10 |
| 18 | Expansion of the hepatocellular carcinoma Milan criteria in liver transplantation: Future directions显示文摘Milan criteria are currently the benchmark related to liver transplantation(LT) for hepatocellular carcinoma. However, several groups have proposed different expanded criteria with acceptable results. In this article, we review the current status of LT beyond the Milan criteria in three different scenarios-expanded criteria with cadaveric LT, downstaging to Milan criteria before LT, and expansion in the context of adult living donor LT. The review focuses on three main questions: what would the impact of the expansion beyond Milan criteria be on the patients on the waiting list; whether the dichotomous criteria(yes/no) currently used are appropriate for LT or continuous survival estimations, such as the one of 'Metroticket' and whether it should enter into the clinical practice; and, whether the use of living donor LT in the context of expansion beyond Milan criteria is justified. | Mihai-Calin Pavel Josep Fuster | 2018 | World Journal of Gastroenterology2018,24,32: | 10 |
| 19 | Climate change,air pollution,and allergic respiratory diseases:a call to action for health professionals显示文摘Rising emissions of greenhouse gases in the atmosphere have warmed the planet substantially and are also accompanied by poor air quality.The increased prevalence of allergic airway disease worldwide can be partially attributed to those global environmental changes.Climate change and air pollution pose adverse impacts on respiratory allergies,and that the mechanisms are complex and interactive.Adverse weather conditions,such as extreme temperatures,can act directly on the respiratory tract to induce allergic respiratory illnesses.Thunderstorms and floods can alter the production and distribution of aeroallergens while wildfires and dust storms increase air pollution,and therefore indirectly enhance health risks.Concentrations of particulate matter and ozone in the air have been projected to increase with climate warming and air stagnation,and the rising temperatures and CO2 increase pollen,molds,and spores,which escalate the risk of allergic respiratory diseases.The synergistic effects of extreme heat and aeroallergens intensify the toxic effect of air pollutants,which in turn augment the allergenicity of aeroallergens.With the Earth’s climate change,migration of humans and plants shift the living environments and allergens of susceptible people.Urban residents are exposed to multiple factors while children are sensitive to environmental exposure.Since climate change may pose many unexpected and persistent effects on allergic respiratory diseases,health professionals should advocate for effective mitigation and adaptation strategies to minimize its respiratory health effects. | Shi-Zhou Deng Bin BJalaludin Josep MAnto Jeremy JHess Cun-Rui Huang | 2020 | Chinese Medical Journal2020,,13: | 9 |
| 20 | Hepatocellular carcinoma显示文摘 | Alejandro Forner Josep M Llovet Jordi Bruix | 2012 | 2012 (9822)2012,,9822: | 9 |