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    题名 作者 年代 出处 被引量
1金融结构与经济增长的非线性门槛效应:基于最优金融结构的视角显示文摘基于最优金融结构视角,使用2001—2015年中国省际面板数据,利用门槛模型对金融结构与经济增长之间的非线性关系进行了实证检验。研究发现:金融结构在不同地区对经济增长的作用效果具有异质性,只有地区发展水平跨越一定的门槛值之后,金融结构市场导向的增强才能显著促进经济增长;经济发展水平与市场化水平越高、法治环境越完善,金融结构市场化的经济增长效应越显著;适度的金融发展水平有利于促进金融结构市场化的经济增长效应,金融发展过度时,金融结构市场导向的增强对经济增长促进作用不再显著。邵汉华 LIU Yaobin 2018审计与经济研究2018,33,3:21
2MR-DBSCAN: a scalable MapReduce-based DBSCAN algorithm for heavily skewed data显示文摘Yaobin HE Haoyu TAN Wuman LUO Shengzhong FENG Jianping FAN 2014Frontiers of Computer Science2014,8,1:18
3Gas diffusion in a cylindrical coal sample – A general solution,approximation and error analyses显示文摘The analytical mathematical solutions of gas concentration and fractional gas loss for the diffusion of gas in a cylindrical coal sample were given with detailed mathematical derivations by assuming that the diffusion of gas through the coal matrix is concentration gradient-driven and obeys the Fick’s Second Law of Diffusion.The analytical solutions were approximated in case of small values of time and the error analyses associated with the approximation were also undertaken.The results indicate that the square root relationship of gas release in the early stage of desorption,which is widely used to provide a simple and fast estimation of the lost gas,is the first term of the approximation,and care must be taken in using the square root relationship as a significant error might be introduced with increase in the lost time and decrease in effective diameter of a cylindrical coal sample.Li Yaobin Xue Sheng Wang Junfeng Wang Yucang Xie Jun 2014International Journal of Mining Science and Technology2014,24,1:12
4Microwave thermal remediation of crude oil contaminated soil enhanced by carbon fiber显示文摘Thermal remediation of the soil contaminated with crude oil using microwave heating enhanced by carbon fiber(CF) was explored. The contaminated soil was treated with 2.45 GHz microwave,and CF was added to improve the conversion of microwave energy into thermal energy to heat the soil.During microwave heating,the oil contaminant was removed from the soil matrix and recovered by a condensation system of ice-salt bath.The experimental results indicated that CF could effciently enhance the microwave heating of soil even with relatively low-dose.With 0.1 wt.%CF,the soil could be heated to approximately 700°C within 4 min using 800 W of microwave irradiation.Correspondingly,the contaminated soil could be highly cleaned up in a short time.Investigation of oil recovery showed that,during the remediation process,oil contaminant in the soil could be effciently recovered without causing significant secondary pollution.LI Dawei,ZHANG Yaobin,QUAN Xie,ZHAO Yazhi Key Laboratory of Industrial Ecology and Environmental Engineering,Ministry of Education of China,School of Environmental and Biological Science and Technology,Dalian University of Technology,Dalian 116024,China 2009Journal of Environmental Sciences2009,21,9:9
5Steady performance of a zero valent iron packed anaerobic reactor for azo dye wastewater treatment under variable influent quality显示文摘Zero valent iron(ZVI) is expected to help create an enhanced anaerobic environment that might improve the performance of anaerobic treatment.Based on this idea,a novel ZVI packed upflow anaerobic sludge blanket(ZVI-UASB) reactor was developed to treat azo dye wastewater with variable influent quality.The results showed that the reactor was less influenced by increases of Reactive Brilliant Red X-3B concentration from 50 to 1000 mg/L and chemical oxygen demand(COD) from 1000 to 7000 mg/L in the feed than a reference UASB reactor without the ZVI.The ZVI decreased oxidation-reduction potential in the reactor by about 80 mV.Iron ion dissolution from the ZVI could buffer acidity in the reactor,the amount of which was related to the COD concentration.Fluorescence in situ hybridization test showed the abundance of methanogens in the sludge of the ZVI-UASB reactor was significantly greater than that of the reference one.Denaturing gradient gel electrophoresis showed that the ZVI increased the diversity of microbial strains responsible for high efficiency.Yaobin Zhang Yiwen Liu Yanwen Jing Zhiqiang Zhao Xie Quan 2012Journal of Environmental Sciences2012,24,4:9
6Electrochemically enhanced adsorption of PFOA and PFOS on multiwalled carbon nanotubes in continuous flow mode显示文摘It is important to develop efficient technologies on removal of perfluorooctanoic acid(PFOA)and perfluorooctane sulfonate(PFOS)from water due to their wide distribution and potential threat to human health.In this work,a durable and convenient electrosorption device was designed in continuous flow mode to investigate the adsorption of PFOX(X=A and S)on multiwalled carbon nanotubes(MWNTs)from water under electrochemical assistance.The electrosorption experiments were conducted under different influent and electrolyte concentrations,hydraulic retention time(HRT)and electrode distance to optimize the operation.The results showed that the highest removal efficiencies toward both PFOA and PFOS could come up to 90%at 1 V.Compared with open circuit(OC)adsorption under the same conditions,the removal efficiencies were improved by 4.9 times(PFOA)and 4.2 times(PFOS)respectively.In addition,the MWNTs electrode was found to be reusable.These findings provide an efficient method to remove PFOX from water by electrosorption in continuous flow mode.Shuangyu Wang Xiaona Li Yaobin Zhang Xie Quan Shuo Chen Hongtao Yu Huimin Zhao 2014Chinese Science Bulletin2014,59,23:8
7Effects of Cu(Ⅱ) and humic acid on atrazine photodegradation显示文摘This work was designed to explore the characteristics of photodegradation of herbicides in the copper-polluted water body. The results showed that Cu(II) alone could induce a photo Fenton-like reaction to enhance the degradation of atrazine, in which hydroxyl radical (·OH) was a main active species. Humic acids restrained atrazine degradation, nevertheless, when introducing Cu(II), the photodegradation was accelerated, in which singlet oxygen ( 1 O 2 ) replaced ·OH acting as the prevailing species. A feasible mechanism for the photochemical process was also proposed, which is helpful for better understanding the environmental photochemistry of atrazine in the copper-polluted water.Xia Sun Hui Liu Yaobin Zhang Yazhi Zhao Xie Quan 2011Journal of Environmental Sciences2011,23,5:7
8Isolation, purification and characterization of a new organphosphorus hydrolase OPHC2显示文摘A bacterium with the capability of degrading organphosphorus, identified as Pseudomonas pseudoaicaligenes, is isolated from OP-treated soil. The organphosphorus hydrolase OPHC2 from this bacterium has been purified and characterized. OPHC2 has optimum activity for the reaction at 65℃ and pH 9.0 with methyl parathion as a substrate, it also shows good thermal and pH stability. Most metal ions and chemicals have no effect on the activity of OPHC2. The analyses of nucleotide sequence encoding OPHC2 and amino acid sequence of OPHC2 show that there are lower homologies with those of organphosphorus hydrolase reported in GenBank.WUNingfeng DENGMinjie SHIXiuyun LIANGGuoyi YAOBin FANYunliu 2004Chinese Science Bulletin2004,49,3:6
9插电式混合电动汽车动力系结构的非线性约束优化(英文)显示文摘为了优化插电式混合电动汽车(PHEV)动力系(例如发动机功率、电动机功率、相关经济效率)构件尺寸,使用了'粒子群优化'(PSO)方法。对于非线性约束优化问题,PSO方法比常规优化方法更有效、经济。用动力系反洗工具箱(PSAT)方法,构建了新的带有优化配置的PHEV动力系的模型系。仿真计算结果表明:运用PSO优化构件的汽车,具有同等的驾驶性能,在燃料消耗上达30%的改进。Emrah T.YILDIZ Quazi FAROOQI Sohel ANWAR Yaobin CHEN Afshin IZADIAN 2012汽车安全与节能学报2012,3,1:5
10Biped Robot with Triangle Configuration显示文摘A new biped robot with a triangle configuration is presented and it is a planar closed chain mechanism.The scalability of three sides of the triangle is realized by three actuated prismatic joints.The three vertexes of the triangle are centers of three passive revolute joints coincidently.The biped mechanism for straight walking is proposed and its walking principle and mobility are explained.The static stability and the height and span of one step are analyzed.Kinematic analysis is performed to plan the gaits of walking on an even floor and going upstairs.A prototype is developed and experiments are carried out to validate the straight walking gait.Two additional revolute joints are added to form a modified biped robot which can follow the instruction of turning around.The turning ability is verified by experiments.As a new member of biped robots,its triangle configuration is used to impart geometry knowledge.Because of its high stiffness,some potential applications are on the way.LIU Changhuan YAO Yan’an TIAN Yaobin 2012Chinese Journal of Mechanical Engineering2012,25,1:5
11A Survey of Model Predictive Control Methods for Traffic Signal Control显示文摘Enhancing traffic efficiency and alleviating(even circumventing) traffic congestion with advanced traffic signal control(TSC) strategies are always the main issues to be addressed in urban transportation systems. Since model predictive control(MPC) has a lot of advantages in modeling complex dynamic systems, it has been widely studied in traffic signal control over the past 20 years. There is a need for an in-depth understanding of MPC-based TSC methods for traffic networks. Therefore, this paper presents the motivation of using MPC for TSC and how MPC-based TSC approaches are implemented to manage and control the dynamics of traffic flows both in urban road networks and freeway networks. Meanwhile, typical performance evaluation metrics, solution methods, examples of simulations,and applications related to MPC-based TSC approaches are reported. More importantly, this paper summarizes the recent developments and the research trends in coordination and control of traffic networks with MPC-based TSC approaches. Remaining challenges and open issues are discussed towards the end of this paper to discover potential future research directions.Bao-Lin Ye Weimin Wu Keyu Ruan Lingxi Li Tehuan Chen Huimin Gao Yaobin Chen 2019IEEE/CAA Journal of Automatica Sinica2019,6,3:4
12Impact of Rice-Catfish/Shrimp Co-culture on Nutrients Fluxes Across Sediment-Water Interface in Intensive Aquaculture Ponds显示文摘Exchange of nitrogen and phosphorus across sediment-water interface plays an important role in the management of nutrient recycling in the aquaculture pond. In this study, a plot experiment was conducted to study the effect of rice-catfish/shrimp co-culture on the micro-profile of oxygen (O2), pH and nutrient exchange across sediment-water interface in the intensive culture ponds. The results showed that rice-catfish co-culture increased the concentration and penetrating depth of O2, but decreased the pH value across the sediment-water interface, compared with catfish monoculture. Additional rice cultivation significantly reduced the flux rates of ammonium (NH4+) and nitrate (NO3-) across sediment-water interface in the catfish and shrimp ponds. The flux rates of NO2 - and soluble phosphorus (PO43-) showed no significant difference between rice-catfish/shrimp co-culture ponds and catfish/shrimp monoculture ponds. Rice only affected the dissolved inorganic nitrogen and phosphorus fractions in the sediment. The concentrations of NH4 + were significantly lower in the sediment of co-culture ponds than in the monoculture ponds. Additional rice cultivation also significantly reduced the content and percentage of dissolved inorganic phosphorus in the sediment of catfish ponds.LIU Yaobin QIN Lin LI Fengbo ZHOU Xiyue XU Chunchun JI Long CHEN Zhongdu FENG Jinfei FANG Fuping 2019Rice science2019,26,6:4
13Electrocatalytic dechlorination of 2,4,5-trichlorobiphenyl using an aligned carbon nanotubes electrode deposited with palladium nanoparticles显示文摘Palladium loaded carbon nanotubes cathode with well-aligned nanotubes array was successfully fabricated on a titanium foil (Pd/CNTs/Ti) using a chemical vapor deposition technique and subsequent electrochemical deposition method. Pd particles were well dispersed on CNTs wall surfaces with average sizes no more than 20 nm, in most cases around 10 nm. Experiments for dechlorination of 2,4,5-trichlorobiphenyl (PCB 29) in methanol/water solution were carried out for the first time using Pd/CNTs/Ti cathode for investigation of its performance in electrocatalytic dechlorination of PCBs. Results show that Pd/CNTs/Ti presented better dechlorination efficiency (up to 90% in 6 h) than Pd/Ti and Pd/graphite cathodes owing to unique properties owned by CNTs, which benefited enhanced dechlorination of PCB 29. Complete dechlorination for PCB 29 was observed and biphenyl was identified to be final dechlorination product. The amount of Pd loading, cathode potential, and electrolytes were found to be key factors influencing dechlorination performance.CHEN Shuo QIN ZhenLin QUAN Xie ZHANG YaoBin ZHAO HuiMin 2010Chinese Science Bulletin2010,55,4:4
14A pulsed switching peroxi-coagulation process to control hydroxyl radical production and to enhance 2,4-Dichlorophenoxyacetic acid degradation显示文摘The aim of this study was to develop a new pulsed switching peroxi-coagulation system to control hydroxyl radical(∙OH)production and to enhance 2,4-Dichlorophenoxyacetic acid(2,4-D)degradation.The system was constructed with a sacrifice iron anode,a Pt anode,and a gas diffusion cathode.Production of H_(2)O_(2) and Fe^(2+)was controlled separately by time delayers with different pulsed switching frequencies.Under current densities of 5.0 mA/cm^(2)(H_(2)O_(2))and 0.5 mA/cm^(2)(Fe^(2+)),the∙OH production was optimized with the pulsed switching frequency of 1.0 s(H_(2)O_(2)):0.3 s(Fe^(2+))and the ratio of H_(2)O_(2) to Fe^(2+)molar concentrations of 6.6.Under the optimal condition,2,4-D with an initial concentration of 500 mg/L was completely removed in the system within 240 min.The energy consumption for the 2,4-D removal in the system was much lower than that in the electro-Fenton process(686 vs.13610 kWh/kg TOC).The iron consumption in the system was~20 times as low as that in the peroxi-coagulation process(19620 vs.3940400 mg/L)within 240 min.The system should be a promising peroxi-coagulation method for organic pollutants removal in wastewater.Yaobin Lu Songli He Dantong Wang Siyuan Luo Aiping Liu Haiping Luo Guangli Liu Renduo Zhang 2018Frontiers of Environmental Science & Engineering2018,12,5:3
15A novel rat model of cardiopulmonary bypass for deep hypothermic circulatory arrest without blood priming显示文摘Zhang Weihua Zhang Yanbo Liu Donghai Zhu Yaobin Qiao Chenhui Wang Jiaxiang Xu Yulin Liu Yang Li Bin Yang Yao 2014Chinese Medical Journal2014,,7:3
16直线电机轨迹跟踪系统快速终端滑模控制显示文摘为提高永磁同步直线电机伺服系统的控制精度和鲁棒性,满足高速度高精度运动控制系统的要求,提出了一种快速终端滑模控制方法并建立了电机系统数学模型。分析和证明该控制算法的稳定性和鲁棒性。与传统的滑模控制方法相比,该算法确保了系统状态在平衡点邻域内具有更快的收敛速度,并最终收敛至平衡点。通过选择控制算法中合适的参数值,系统可达到很高的控制精度。此外,该方法属于连续控制从而避免了系统控制输入震颤现象的出现。仿真实验结果表明,该方法能够快速稳定地跟踪目标轨迹并保持较高的跟踪精度,可显著提高直线电机轨迹跟踪运动系统性能,适用于半导体光刻工作台、引线键合系统等精密运动控制系统。李义强 周惠兴 CHEN Yaobin 2011控制工程2011,18,5:3
17Multiple Routes Recommendation System on Massive Taxi Trajectories显示文摘This paper presents a cloud-based multiple-route recommendation system, xGo, that enables smartphone users to choose suitable routes based on knowledge discovered in real taxi trajectories. In modern cities, GPS-equipped taxicabs report their locations regularly, which generates a huge volume of trajectory data every day. The optimized routes can be learned by mining these massive repositories of spatio-temporal information. We propose a system that can store and manage GPS log files in a cloud-based platform, probe traffic conditions, take advantage of taxi driver route-selection intelligence, and recommend an optimal path or multiple candidates to meet customized requirements. Specifically, we leverage a Hadoop-based distributed route clustering algorithm to distinguish different routes and predict traffic conditions through the latent traffic rhythm. We evaluate our system using a real-world dataset(>100 GB) generated by about 20 000 taxis over a 2-month period in Shenzhen, China. Our experiments reveal that our service can provide appropriate routes in real time and estimate traffic conditions accurately.Yaobin He Fan Zhang Ye Li Jun Huang Ling Yin Chengzhong Xu 2016Tsinghua Science and Technology2016,21,5:3
18Cloning and expression of ophc2,a new organphosphorus hydrolase gene显示文摘The amino acid sequences of N-terminal and internal peptide of OPHC2,purified from Pseudomonas pseudoalcaligenes strain C2-1 in our lab,are determined.The full-length organphosphorus hydrolase gene ophc2 is cloned by PCR using the degenerate primers designed according to the sequences and future inverse PCR.The ophc2 gene is 975 bp long with G+C content of 63%,comprising one open reading frame encoding a polypeptide of 324 amino acids with a molecular weight of 36 kD.The nucleotide sequence of ophc2 shows low homolo- gies with those organphosphorus hydrolase genes deposited in Gen- Bank,one of which exhibits the highest homology of 46.4% with ophc2.The organphosphorus hydrolase protein expressed in E.coli bears normal bioactivity.WUNingfeng DENGMinjie LIANGGuoyi CHUXiaoyu YAOBin FANYunliu 2004Chinese Science Bulletin2004,49,12:3
19A strategy for enhancing anaerobic digestion of waste activated sludge: Driving anodic oxidation by adding nitrate into microbial electrolysis cell显示文摘Cathodic reduction of CO_2 and anodic oxidation of organic matters are crucial to methaneproducing microbial electrolysis cell(MEC) applied in anaerobic digestion of waste activated sludge. However, cathodic CO_2 reduction is usually restrained by slow metabolism rates of H_2-utilizing methanogens and low electron-capturing capacity of CO_2, which consequently slows down the anodic oxidation that participates to sludge disintegration. Herein, a strategy with adding nitrate as electron acceptor to foster electronic transfer between the anode and cathode was proposed to improve anodic oxidation. Results showed that the average efficiency of anodic oxidation in the nitrate-added MEC increased by 55.9%. Accordingly,volatile suspended solid removal efficiency in the nitrate-added MEC was 21.9% higher than that of control MEC. Although the initial cumulative methane production in the nitrateadded MEC was lower than that of control MEC, the cumulative methane production in 24 days was 8.9% higher. Fourier transform infrared spectroscopy analysis indicated that anodic oxidation of MEC with nitrate accelerated the disintegration of sludge flocs and cell walls. Calculation on current signal further revealed that anodic oxidation driven by cathodic nitrate reduction was the main mechanism responsible for the improved sludge digestion.Hong Peng Zhiqiang Zhao Hong Xiao Yafei Yang Huimin Zhao Yaobin Zhang 2019Journal of Environmental Sciences2019,31,7:2
20QTL-Seq Identified a Major QTL for Grain Length and Weight in Rice Using Near Isogenic F_2 Population显示文摘Mapping and isolation of quantitative trait loci(QTLs)or genes controlling grain size or weight is very important to uncover the molecular mechanisms of seed development and crop breeding.To identify the QTLs controlling grain size and weight,we developed a near isogenic line F_2(NIL-F_2)population,which was derived from a residual heterozygous plant in an F_7 generation of recombinant inbred line(RIL).With the completion of more than 30×whole genome re-sequencing of the parents,two DNA bulks for large and small grains,a total of 58.94 Gb clean nucleotide data were generated.A total of455 262 single nucleotide polymorphisms(SNPs)between the parents were identified to perform bulked QTL-seq.A candidate genomic region containing SNPs strongly associated with grain length and weight was identified from 15 to 20 Mb on chromosome 5.We designated the major QTL in the candidate region as q TGW5.3.Then,q TGW5.3 was further validated with PCR-based conventional QTL mapping method through developing simple sequence repeat and Insertion/Deletion markers in the F_2 population.Furthermore,recombinants and the progeny tests delimited the candidate region of q TGW5.3 to 1.13 Mb,flanked by HX5009(15.15 Mb)and HX5003(16.28 Mb).A set of NILs,selected from the F_2 population,was developed to evaluate the genetic effect of q TGW5.3.Significant QTL effects were detected on grain length,grain width and 1000-grain weight of H12-29 allele with 1.14 mm,-0.11 mm and 3.11 g,which explained 99.64%,95.51%and 97.32%of the phenotypic variations,respectively.QIN Yaobin CHENG Peng CHENG Yichen FENG Yue HUANG Derun HUANG Tingxu SONG Xianjun YING Jiezheng 2018Rice science2018,25,3:2
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