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| 1 | 利用时空相关性的多位置多步风速预测模型显示文摘兼顾时、空相关性的风速预测意义重大也极具挑战。围绕多位置、多步风速预测问题展开研究,从风速时空序列的本质出发,提出了一种'先提取空间特征,后捕捉时间依赖'的两阶段建模思路。构造了一个利用时空相关性的风速预测模型——深层时空网络(deep spatio-temporal network,DSTN)。该模型由卷积神经网络(convolutional neural network, CNN)和双向门控循环单元(bidirectional gated recurrent unit,BGRU)共同构成,并通过'端对端'的方式进行训练,具备'序列到序列'的预测能力。首先,DSTN利用底层的CNN从空间风速矩阵中提取空间特征。然后,利用BGRU捕捉来自连续时间断面的空间特征之间的时间依赖关系,进而实现对时空序列的预测。此外,还定义了针对多位置风速预测的误差指标,用以描述预测模型的总体平均性能和个体误差控制能力。以美国加利福尼亚州某风电场实测数据为算例进行分析,结果表明,DSTN能够有效利用时空相关性进行风速预测,其预测性能优于多种现有预测模型。 | 陈金富 朱乔木 石东源 李银红 ZHU Lin 段献忠 LIU Yilu | 2019 | 中国电机工程学报2019,39,7: | 28 |
| 2 | 大规模电力系统频率动态分析显示文摘给出美国东部电网和中国川渝电网的频率动态测量结果,并分析频率动态的时空分布特性。阐述频率动态研究的一些重要方法和结论,指出现有方法分析大规模电网频率动态的不足。从理论上探讨大规模电网频率动态分析的机电波方法,推导出频率波方程和频率波色散关系,从而提出了一种从频率波传播分析频率动态时空特性的新方法。 | 王晓茹 LIU Yilu | 2010 | 南方电网技术2010,4,1: | 17 |
| 3 | Dexamethasone and dextran 40 treatment of 32 patients with severe acute pancreatitis显示文摘AIM: Based on the pathogenesis of severe acute pancreatitis and our experimental studies, to investigate the effect of dexamethasone and dextran in treatment of patients with severe acute pancreatitis.METHODS: Thirty-two patients with severe acute pancreatitis were treated with 0.5-1 mg/kg per day dexamethasone for 3-5 d, and 500-1 000 mL/d of dextran 40 for 7 d, besides the routine therapy.RESULTS: After 4-8 h of treatment, abdominal pain began to be relieved; range of tenderness began to be localized in 27 patients. They were cured with nonsurgical treatment.Five of them were deteriorated, and treated with surgery.Four patients in this group died.CONCLUSION: Dexamethasone and dextran 40 block the pathologic process of severe acute pancreatitis through inhibition of inflammatory mediators and improvement of microcirculation disorders respectively. | Zi-FaWang ChangLiu YiLu RuiDong ]unXu LiangYu Ying-MinYao Qing-GuangLiu Cheng-EnPan | 2004 | World Journal of Gastroenterology2004,10,9: | 11 |
| 4 | 基于大数据技术的北美FNET/GridEye系统设计与实现显示文摘随着智能电网信息化技术的快速发展,已稳定运行多年的FNET/GridEye软件系统已经无法适应未来的发展。针对这种情况并结合最新的电力实时大数据(以同步向量数据为主)开源项目OpenPDC/OpenHistorian设计了基于分布式架构的新一代系统。系统由前端集群、后端集群和系统调用组件三部分组成,具有系统扩展性强和可靠性高的特点。前端集群中的每台OpenPDC服务器负责接入一定数量的同步向量采集设备,并在其中运行不同的电网事件触发器插件。当触发器探测到电网事件后会以组播方式通知位于后端集群中的系统调度组件,此组件负责从OpenHistorian中加载窗口数据后,运行对应的分析应用程序。针对已投运系统的数据吞吐量测试、两年多的稳定运行和不断添加前端设备和后端应用证明了新系统设计的先进性。 | 桂勋 LIU Yilu 郑永康 刘明忠 | 2017 | 电力系统自动化2017,41,10: | 10 |
| 5 | Novel Cellulase Profile of Trichoderma reesei Strains Constructed by cbh1 Gene Replacement with eg3 Gene Expression Cassette显示文摘To construct strains of the filamentous fungus Trichoderma reesei with low cellobiohydrolases while high endoglucanase activity, the Pcbh1-eg3-Tcbh1 cassette was constructed and the coding sequence of the cellobiohydrolase I (CBHI) gene was replaced with the coding sequence of the eg3 gene by homologous recombination. Disruption of the cbh1 gene was confirmed by PCR, Southern dot blot and Western hybri- dization analysis in two transformants denoted as L13 and L29. The filter paper-hydrolyzing activity of strain L29 was 60% of the parent strain Rut C30, and the CMCase activity was increased by 33%. This relatively modest increase suggested that the eg3 cDNA under the control of the cbh1 promoter was not efficiently transcribed as the wild type cbhl gene. However our results confirmed that homologous recombination could be used to construct strains of the filamentous fungus Trichoderma reesei with novel cellulase profile. Such strains are of interest from the basic science perspective and also have potential industrial applications. | Tian-HongWANG TiLIU Zhi-HongWU Shi-LiLIU YiLU Yin-BoQU | 2004 | Acta Biochimica et Biophysica Sinica2004,36,10: | 9 |
| 6 | Measurement-based Frequency Dynamic Response Estimation Using Geometric Template Matching and Recurrent Artificial Neural Network显示文摘Understanding power system dynamics after an event occurs is essential for the purpose of online stability assessment and control applications.Wide area measurement systems(WAMS)based on synchrophasors make power system dynamics visible to system operators,delivering an accurate picture of overall operating conditions.However,in actual field implementations,some measurements can be inaccessible for various reasons,e.g.,most notably communication failure.To reconstruct these inaccessible measurements,in this paper,the radial basis function artificial neural network(RBF-ANN)is used to estimate the system dynamics.In order to find the best input features of the RBF-ANN model,geometric template matching(GeTeM)and quality-threshold(QT)clustering are employed from the time series analysis to compute the similarity of frequency dynamic responses in different locations of the power system.The proposed method is tested and verified on the Eastern Interconnection(EI)transmission system in the United States.The results obtained indicate that the proposed approach provides a compact and efficient RBF-ANN model that accurately estimates the inaccessible frequency dynamic responses under different operating conditions and with fewer inputs. | Feifei Bai Xiaoru Wang Yilu Liu Xinyu Liu Yue Xiang Yong Liu | 2016 | CSEE Journal of Power and Energy Systems2016,2,3: | 8 |
| 7 | Cloning and expression of ornithine decarboxylase gene from human colorectal carcinoma显示文摘AIM: To construct and express ODC recombinant gene for further exploring its potential use in early diagnosis of colorectal carcinoma.METHODS: Total RNA was extracted from colon cancer tissues and amplified by reverse-transcription PCR with two primers, which span the whole coding region of ODC. The synthesized ODC cDNA was cloned into vector pQE-30 at restriction sites BamH I and Sal I which constituted recombinant expression plasmid pQE30-ODC. The sequence of inserted fragment was confirmed by DNA sequencing,the fusion protein including 6His-tag was facilitated for purification by Ni-NTA chromatographic column.RESULTS: ODC expression vector was constructed and confirmed with restriction enzyme digestion and subsequent DNA sequencing. The DNA sequence matching on NCBI Blast showed 99 % affinity. The vector was transformed into E.coli M15 and expressed. The expressed ODC protein was verified with Western blotting.CONCLUSION: The ODC prokaryote expression vector is constructed and thus greatly facilitates to study the role of ODC in colorectal carcinoma. | Hai-YanHu Xian-XiLiu Chun-YingJiang YanZhang Ji-FengBian YiLu ZhaoGeng Shi-LianLiu Chuan-HuaLiu Xiao-MingWang WeiWang | 2003 | World Journal of Gastroenterology2003,9,4: | 7 |
| 8 | An overview of the American trauma system显示文摘美国损伤系统被设计提供组织回答给损害。它从象在城市的社区医院里开发的原则一样在第 20 世纪的战争从美洲参与接受的教训拉它的基础。尽管在本地、州的政府水平跑,它被国家社会指导并且成为了一个世界级例子。它当前也面对 ? 有衰退偿还和提供的平等者的挑战存取喜欢所有美国人。职业社会和立法身体持续为这些问题的公平、公平的答案一起正在工作。 | Jose M. Soto Yilu Zhang Jason H. Huang Dong-Xia Feng | 2018 | Chinese Journal of Traumatology2018,21,2: | 5 |
| 9 | 基于电网频率的数字录音真伪鉴别研究显示文摘采用电网频率鉴别数字录音真伪是司法科学领域近年来的研究热点。在北美电网频率监测系统(FNET)的基础上,构建用于数字录音信号真伪鉴别的专用标准电网频率数据库,提出一种完整的真伪鉴别算法。采用数字滤波技术和短时傅里叶变换估计蕴含在数字信号中的电网频率分量,通过补零操作及三点样条插值提高频率估计的准确度;首次考虑数字采集系统振荡器对频率数据库匹配的影响,提出一种迭代式振荡器误差校正方法;分析短时傅里叶变换的参数选择,如窗函数、补零系数对频率估计准确度的影响,最后实现了该套数字录音真伪鉴别算法。在实测数字语音信号上的实验结果表明,该方法能有效地鉴别数字信号的真伪并确定其原创时间。 | 刘育明 姚陈果 孙才新 袁智勇 Liu Yilu | 2013 | 仪器仪表学报2013,34,6: | 4 |
| 10 | SF_(6)decomposition and insulation condition monitoring of GIE:A review显示文摘The statistics of the Conference International des Grands Reseaux Electriques(CIGRE)indicate that the operational reliability of SF6 gas‐insulated equipment(GIE)is very high;however,the failure rate of the GIE in operation is much higher than that of the IEC standard,and the fault occurs frequently in the GIE at a high voltage level.The reason is due to the complex and strong on‐site electromagnetic interference environment and fully enclosed structure of GIE.The key method and technology for effective on‐line monitoring and fault diagnosis of GIE are still lacking.Given the partial strong electromagnetic energy and high temperature induced by early latent insulation faults in the equipment,SF6 gas insulation presents different degrees of decomposition.The decomposition products mainly include SO_(2)F_(2),SOF_(2),SO_(2),HF,and H2S.The decomposition characteristics of SF6 are closely related to the property of insulation faults.At present,this area is attracting attention from the power industry and research institutes.This study summarises the current research on SF_(6)decomposition component analysis(DCA).The content mainly includes the latest progress of SF_(6)decomposition characteristics and mechanism under fault conditions,and fault diagnosis methods based on decomposition components. | Fuping Zeng Haotian Li Hongtu Cheng Ju Tang Yilu Liu | 2021 | High Voltage2021,6,6: | 3 |
| 11 | Machine learning-based fast frequency response control for a VSC-HVDC system显示文摘HVDC system can realize a very fast frequency response to the disturbed system under a contingency because its active power control is decoupled from the frequency deviation.However,most of existing HVDC frequency control strategies are coupled with system primary frequency control and secondary frequency control.Since the traditional system frequency control is dominated by the thermal generators,the advantage of the fast response of the HVDC system is not made fully used.The development of a frequency response estimation based on a machine learning algorithm provides another approach to improve the frequency response capability of the HVDC system.Different from other frequency deviation tracking strategies,a machine learning based HVDC frequency response control can directly increase the power flow of a HVDC system by estimation of the system generator or load lost.In this paper,a fast frequency response control using a HVDC system for a large power system disturbance based on the multivariate random forest regression(MRFR)algorithm is proposed.The simulation is carried out with an integrated power system model based on the North American interconnections.The simulation results indicate that the proposed MRFR based frequency response control can significantly improve the frequency low point during an event,while stabilizing the frequency in advance. | Kaiqi Sun Huangqing Xiao Shengyuan Liu Yilu Liu | 2021 | CSEE Journal of Power and Energy Systems2021,7,4: | 3 |
| 12 | A Hybrid Dynamic Demand Control Strategy for Power System Frequency Regulation显示文摘The rapid increase in renewable energy integration brings with it a series of uncertainty to the transmission and distribution systems.In general,large-scale wind and solar power integration always cause short-term mismatch between generation and load demand because of their intermittent nature.The traditional way of dealing with this problem is to increase the spinning reserve,which is quite costly.In recent years,it has been proposed that part of the load can be controlled dynamically for frequency regulation with little impact on customers’living comfort.This paper proposes a hybrid dynamic demand control(DDC)strategy for the primary and secondary frequency regulation.In particular,the loads can not only arrest the sudden frequency drop,but also bring the frequency closer to the nominal value.With the proposed control strategy,the demand side can provide a fast and smooth frequency regulation service,thereby replacing some generation reserve to achieve a lower expense. | Qingxin Shi Hantao Cui Fangxing Li Yilu Liu Wenyun Ju Yonghui Sun | 2017 | CSEE Journal of Power and Energy Systems2017,3,2: | 3 |
| 13 | Plant buffering against the high-light stress- induced accumulation of CsGA2ox8 transcripts via alter native splici ng to fi n ely tune gibberelli n levels and maintain hypocotyl elongation显示文摘In plants,alternative splicing(AS)is markedly induced in response to environmental stresses,but it is unclear why plants generate multiple transcripts under stress conditions.In this study,RNA-seq was performed to identify AS events in cucumber seedlings grown under different light intensities.We identi fi ed a novel transcript of the gibberellin(GA)-deactivating enzyme Gibberellin 2-beta-dioxygenase 8(CsGA2ox8).Compared with canonical CsGA2ox8.1,the CsGA2ox8.2 isoform presented intron retention between the second and third exons.Functional analysis proved that the transcript of CsGA2ox8.1 but not CsGA2ox8.2 played a role in the deactivation of bioactive GAs.Moreover,expression analysis demonstrated that both transcripts were upregulated by increased light intensity,but the expression level of CsGA2ox8.1 increased slowly when the light intensity was>400μmol-m-2-s-1 PPFD(photosynthetic photon fl ux density),while the CsGA2ox8.2 transcript levels increased rapidly when the light intensity was>200 pmol-m-2-s-1 PPFD.Our fi ndings provide evidence that plants might fi nely tune their GA levels by buffering against the normal transcripts of CsGA2ox8 through AS. | Bin Liu Shuo Zhao Pengli Li Yilu Yin Qingliang Niu Jinqiang Yan Danfeng Huang | 2021 | Horticulture Research2021,8,1: | 2 |
| 14 | Yolk-Shell Cu_(2)O@CuO-decorated RGO for High-Performance Lithium-Ion Battery Anode显示文摘Based on the great advantages of an inner hollow structure and excellent solid counterpart capacity,complex hierarchical structures have been widely used as electrodes for lithium-ion batteries.Herein,hierarchical yolk-shell Cu_(2)O@Cu O-decorated RGO(YSRs)was designed and synthesized via a multistep approach.Octahedron-like Cu_(2)O-decorated RGO was firstly produced,in which GO was reduced slightly while cuprous oxide was synthesized.Subsequently,the controlled oxidation of Cu_(2)O@RGO led to the synthesis of special YSRs,which were composed of a solid Cu_(2)O core,spur-CuO,CuO shell,and RGO covered.As anode materials,YSRs could provide considerable capacity density.Meanwhile,the void existed between shells and solid active materials retaining the advantages of inner hollow structure.As a result,the unique architecture of the materials renders the composites with enhanced electronic and ionic diffusion kinetics,high specific capacity(~894 m Ah g^(-1),0.1 C),and an excellent rate capability. | Fangzhao Pu Yilu Bai Jian Lv Xintian Zhao Guanchen Wu Chuncai Kong Bosen Lei Xiaojing Zhang Hong Jin Zhimao Yang | 2022 | Energy & Environmental Materials2022,5,1: | 2 |
| 15 | Efficient production of chemicals from microorganism by metabolic engineering and synthetic biology显示文摘The use of traditional chemical catalysis to produce chemicals has a series of drawbacks,such as high dependence on fossil resources,high energy consumption,and environmental pollution.With the development of synthetic biology and metabolic engineering,the use of renewable biomass raw materials for chemicals synthesis by constructing efficient microbial cell factories is a green way to replace traditional chemical catalysis and traditional microbial fermentation.This review mainly summarizes several types of bulk chemicals and high value-added chemicals using metabolic engineering and synthetic biology strategies to achieve efficient microbial production.In addition,this review also summarizes several strategies for effectively regulating microbial cell metabolism.These strategies can achieve the coupling balance of material and energy by regulating intracellular material metabolism or energy metabolism,and promote the efficient production of target chemicals by microorganisms. | Yang Zhang Jing Yu Yilu Wu Mingda Li Yuxuan Zhao Haowen Zhu Changjing Chen Meng Wang Biqiang Chen Tianwei Tan | 2021 | Chinese Journal of Chemical Engineering2021,34,2: | 2 |
| 16 | 采用稳健统计与B样条函数处理频率扰动记录单元异常数据显示文摘北美电网监测系统(FNET)是在配网侧实时采集电网频率的广域测量系统。由于硬件故障或网络中断,频率扰动记录单元(FDRs)采集的数据不可避免地包含尖峰或缺失数据段等异常数据,在剔除尖峰同时常用的一维中值滤波,弱化频率波动的细节信息无法弥补缺失数据段。针对此一问题,提出了融合稳健统计和B样条函数的频率异常数据处理方法,它通过设定阈值辨识尖峰值,采用B样条基函数的线性组合重构原始频率序列,引入曲线粗糙度控制B样条基函数学习过程中存在的过拟合问题。该方法仅在局部范围内处理频率异常数据,能最大限度地保留频率波动信息,且计算简洁,能实现任意阶B样条函数的构造及学习,易于推广到其他时间序列的数据预处理。 | 刘育明 姚陈果 孙才新 Yilu LIU | 2012 | 高电压技术2012,38,6: | 2 |
| 17 | Study on the migration of nerve stem cell in vitro Induced by glioma cells显示文摘Objective: Previous studies have shown that glioma cells induced the migration of nerve stem cells (NSCs) in vivo. This study was exploring whether this situation could happen in vitro. Methods: Supernatant from C6 glioma cell lines or astrocytes cultured in serum-free medium growing in logarithmic phase were separately placed in lower chambers and NSCs were placed in the upper chambers of Trans-well culture system. After 36 h co-incubation, these NSCs spheres occurred on the middle membrane were counted. Results: Results demonstrated that the supernatant from C6 glioma cell culture, not from the astrocytes, enhanced the migration of NSCs (P<0.01). Conclusion: Some components in C6 glioma cell culture can attract the migration of NSCs. | Yilu Gao Shuzi Gao Yi Fen Sheyu Lin Mei Liu | 2005 | Journal of Nanjing Medical University2005,19,6: | 2 |
| 18 | Rattan Cultivation for Edible Shoot Production in Guangzhou,Southern China显示文摘Field studies were conducted in the Jiuwantan Forest Farm,Huadu District of Guangzhou City from June 2004 to March 2006 to evaluate the effects of planting spacings(0.5 m × 0.5 m,0.5 m × 1.0 m and 1.0 m × 1.0 m) and different fertilizers(bio-fermented manure,NPK compound fertilizer and NPK mixed fertilizer) on the growth of Daemonorops margaritae grown under irrigation and full-light conditions for edible shoots production.The effects of application of different fertilizers on the mean height,length of stems and number of leaves of 30-month old seedlings were not statistically significant,but the planting spacings were(P < 0.05).The two trial plantations became harvestable 18 months after planting when about one-third of seedlings produced new shoots.Results obtained from a sample harvest 20 months after planting showed that the average number of new shoots(suckers) per plant was 1.8,the average lengths of stems and edible shoots(palm hearts) were 45.3 cm and 18.8 cm,respectively.The average fresh weights of defoliated stems and edible shoots were 182.2 g and 14.9 g,respectively.These results suggest that the productivity in the first harvest is rather low. | HUANG Shi’neng1 JIANG Zehui2 ZHAO Xia1 XIAN Guangyong1 1.Research Institute of Tropical Forestry,Chinese Academy of Forestry,No.682 Guangshan Yilu,Tianhe District,Guangzhou 510520,P.R.China 2.International Centre for Bamboo and Rattan(ICBR),No.8 Futong Dongdajie,Wangjing,Chaoyang District,Beijing 100102,P.R.China | 2010 | Chinese Forestry Science and Technology2010,9,3: | 2 |
| 19 | Molecular characterization and toxin quantification of Microcystis panniformis: A microcystin producer in Lake Taihu,China显示文摘Microcystis panniformis is a bloom forming species with flat panniform-like colonies. This species was recently found in Lake Taihu, China. To specifically characterize M. panniformis based on isolated strains, morphological examination on colonial transition and genetic examination are needed. Three M. panniformis strains isolated from a water bloom sample in Lake Taihu were characterized by molecular analysis and toxin quantification. Phylogenetic analysis based on both 16S rRNA gene and internal transcribed spacer(ITS) between 16S and 23S rRNA genes were performed and compared to facilitate easy identification of the species.Relatively high similarities(98%–99%) were shown in 16S rDNA sequences between the strains of M. panniformis and those of other Microcystis species, whereas the similarities for ITS sequences were 88%–95%. In the phylogenetic tree based on the 16S rDNA sequences, the M. panniformis and M. aeruginosa strains were intermixed together with no clear division,whereas all of the M. panniformis strains were clustered together in a single clade based on the ITS sequences based phylogenyetic tree. The mcyE gene was detected in all three strains, and microcystin was determined by high-performance liquid chromatography. The molecular detection and toxin production of M. panniformis strains are of great significance for the environmental risk assessment of Microcystis blooms. | Yilu Gu Xiaofeng Gao Yongguang Jiang Xin Peng Renhui Li | 2019 | Journal of Environmental Sciences2019,31,2: | 2 |
| 20 | Recent Developments of FNET/GridEye—A Situational Awareness Tool for Smart Grid显示文摘Wide-area monitoring systems(WAMS)are becoming increasingly vital for enhancing power grid operators’situational awareness capabilities.As a pilot WAMS that was initially deployed in 2003,the frequency monitoring network FNET/GridEye uses GPS-time-synchronized monitors called frequency disturbance recorders(FDRs)to capture dynamic grid behaviors.Over the past ten years,a large number of publications related to FNET/GridEye have been reported.In this paper,the most recent developments of FNET/GridEye sensors,data centers,and data analytics applications are reviewed.These works demonstrate that FNET/GridEye will become a costeffective situational awareness tool for the future smart grid. | Yong Liu Wenxuan Yao Dao Zhou Ling Wu Shutang You Hesen Liu Lingwei Zhan Jiecheng Zhao Haoyang Lu Wei Gao Yilu Liu | 2016 | CSEE Journal of Power and Energy Systems2016,2,3: | 2 |