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| 1 | 修剪对黄土丘陵区枣树蒸腾的调控作用显示文摘对枣树树体进行梯度修剪,采用热扩散探针(TDP)液流监测系统和中子水分仪对枣树的蒸腾和土壤水分进行同步动态监测,通过2年连续监测发现:修剪对枣树不同时间尺度上的蒸腾均有显著影响。修剪可以显著降低枣树开花坐果期和果实膨大期的树体蒸腾,降低对土壤水分的消耗。与对照处理相比,轻度、中度和重度修剪的枣树全生育期蒸腾总量分别下降31.7%、52.0%和68.6%。通过线性和非线性的分析方法,分析了蒸腾和树体规格指标之间的关系,构建了自然降水量和修剪目标产量的数学模型。提出适宜的陕北枣林可持续经营的目标产量为1.2×104kg/hm2,适宜的节水型修剪调控树体指标为冠幅体积和新稍长度。 | 魏新光 陈滇豫 Liu Shouyang 汪星 高志永 汪有科 | 2014 | 农业机械学报2014，45，12： | 21 |
| 2 | Global Wheat Head Detection(GWHD)Dataset:A Large and Diverse Dataset of High-Resolution RGB-Labelled Images to Develop and Benchmark Wheat Head Detection Methods显示文摘The detection of wheat heads in plant images is an important task for estimating pertinent wheat traits including head population density and head characteristics such as health,size,maturity stage,and the presence of awns.Several studies have developed methods for wheat head detection from high-resolution RGB imagery based on machine learning algorithms.However,these methods have generally been calibrated and validated on limited datasets.High variability in observational conditions,genotypic differences,development stages,and head orientation makes wheat head detection a challenge for computer vision.Further,possible blurring due to motion or wind and overlap between heads for dense populations make this task even more complex.Through a joint international collaborative effort,we have built a large,diverse,and well-labelled dataset of wheat images,called the Global Wheat Head Detection(GWHD)dataset.It contains 4700 high-resolution RGB images and 190000 labelled wheat heads collected from several countries around the world at different growth stages with a wide range of genotypes.Guidelines for image acquisition,associating minimum metadata to respect FAIR principles,and consistent head labelling methods are proposed when developing new head detection datasets.The GWHD dataset is publicly available at http://gffzzef49fa24bca249bbhnf05ux5xn9p665op.ffgz.tsg.suse.edu.cn/and aimed at developing and benchmarking methods for wheat head detection. | Etienne David Simon Madec Pouria Sadeghi-Tehran Helge Aasen Bangyou Zheng Shouyang Liu Norbert Kirchgessner Goro Ishikawa Koichi Nagasawa Minhajul A.Badhon Curtis Pozniak Benoit de Solan Andreas Hund Scott C.Chapman Frédéric Baret Ian Stavness Wei Guo | 2020 | Plant Phenomics2020，2，1： | 13 |
| 3 | Metformin induces ferroptosis by targeting miR-324-3p/GPX4 axis in breast cancer显示文摘Metformin is a widely prescribed hypoglycemic drug.Many studies have shown its anti-cancer properties.In the present study,we aimed to explore the effect of metformin on breast cancer and clarify the underlying mechanism.Our results showed that metformin induced ferroptosis in MDA-MB-231 cells through upregulating miR-324-3p expression.Overexpression of miR-324-3p inhibited cancer cell viability.miR-324-3p inhibitor promoted cell viability.Further studies showed that the effect of miR-324-3p was mediated by directly targeting glutathione peroxidase 4(GPX4).miR-324-3p bound to the 3ʹ-UTR of GPX4 and led to the downregulation of GPX4.In vivo studies showed that metformin induced ferroptosis by upregulating miR-324-3p in the xenograft model of breast cancer in mice.Our study suggested that metformin promotes ferroptosis of breast cancer by targeting the miR-324-3p/GPX4 axis.Metformin could act as a potential anti-cancer agent through the induction of ferroptosis. | Yifeng Hou Shuang Cai Shouyang Yu Hui Lin | 2021 | Acta Biochimica et Biophysica Sinica2021，53，3： | 11 |
| 4 | Forecasting Container Throughput of Qingdao Port with a Hybrid Model显示文摘This paper proposes a hybrid forecasting method to forecast container throughput of Qingdao Port.To eliminate the influence of outliers,local outlier factor(lof) is extended to detect outliers in time series,and then different dummy variables are constructed to capture the effect of outliers based on domain knowledge.Next,a hybrid forecasting model combining projection pursuit regression(PPR) and genetic programming(GP) algorithm is proposed.Finally,the hybrid model is applied to forecasting container throughput of Qingdao Port and the results show that the proposed method significantly outperforms ANN,SARIMA,and PPR models. | HUANG Anqiang LAI Kinkeung LI Yinhua WANG Shouyang | 2015 | Journal of Systems Science & Complexity2015，28，1： | 10 |
| 5 | A BI-LEVEL FORMULATION AND QUASI-NEWTON ALGORITHM FOR STOCHASTIC EQUILIBRIUM NETWORK DESIGN PROBLEM WITH ELASTIC DEMAND显示文摘In this paper, a bi-level formulation of the continuous network design problem (NDP) is proposed on the basis of logit stochastic user equilibrium (SUE) assignment with elastic demand. The model determines the link capacity improvements by maximizing net economic benefit while considering changes in demand and traffic distribution in network. The derivatives of equilibrium link flows and objective function with respect to capacity expansion variables, which are analytically derived, can be computed without having to first find path choice information. These derivatives are employed to develop a quasi Newton algorithm with the BFG S (Broyden- Fletcher- Goldfarb-Shanno) formula for solving the nonlinear, nonconvex but differentiable SUE-constrained network design problem. The SUE assignment with elastic demand is solved by using the method of successive averages in conjunction with Bell’s matrix inversion logit assignment method. Simple and complex example networks are presented to illustrate the model and the algorithm. | HUANG Haijun (School of Management, Beijing University of Aeronautics and Astronautics, Beijing 100083, China) WANG Shouyang (Institute of Systems Science, Academy of Mathematics and Systems Sciences, Chinese Academy of Sciences, Beijing 100080, China) Mi | 2001 | Journal of Systems Science & Complexity2001，14，1： | 6 |
| 6 | An Algorithm to Solve Linear Bilevel Programs | LIU Xiaomin WANG Rishuang(Dept. of Math. Beijing University of Aero.& Astro.,Beijing,100083,P.R.China)WANG Shouyang WANG Qian (Institute of Systems Science,Chinese Academy of Sciences. Beijing,100081, P.R. China) | 1995 | Systems Science and Systems Engineering1995，5，2： | 6 |
| 7 | Adsorption of mercury on laterite from Guizhou Province,China显示文摘The adsorption behaviors of Hg(Ⅱ) on laterite from Guizhou Province,China,were studied and the adsorption mechanism was discussed.The results showed that different mineral compositons in the laterite will cause differences in the adsorption capacity of laterite to Hg(Ⅱ).Illite and non-crystalloids are the main contributors to enhancing the adsorption capacity of laterite to Hg(Ⅱ).The pH of the solution is an important factor affecting the adsorption of Hg(Ⅱ) on laterite.The alkalescent environment (pH 7-9) is favorable to the adsorption of Hg(Ⅱ).The amount of adsorbed Hg(Ⅱ) increases with increasing pH.When the pH reaches a certain value,the amount of the adsorbed Hg(Ⅱ) will reach the maximum level.The amount of adsorbed Hg(Ⅱ) decreases with increasing pH.The optimal pHs of laterite and kaolinite are 9 and 8,respectively.The optimal initial concentrations of Hg(Ⅱ) on laterite and kaolinite are 250 and 200 μg/ml,respectively.The adsorption isotherms were described by the Langmuir model.The adsorption of Hg(Ⅱ) on laterite is a quick process while that of Hg(Ⅱ) on kaolinite is a slow reaction.Laterite from Guizhou Province is a promising environmental material which can be used in the removal of Hg(Ⅱ) from wastewater. | Xiaohong YU Shouyang HE | 2008 | Journal of Environmental Sciences2008，20，11： | 6 |
| 8 | Return and Volatility Spillovers Effects:Study of Asian Emerging Stock Markets显示文摘This paper examines the extent of contagion and interdependence across the six Asian emerging countries stock markets(e.g., Bangladesh, China, India, Malaysia, the Philippine, and South Korea) and then try to quantify the extent of the Asian emerging market fluctuations which are described by intra-regional contagion effect. These markets experienced both fast growth and key upheaval during the sample period, and thus, provide potentially rich information on the nature of border market interactions. Using the daily stock market index data from January 2002 to December 2016(breaking the 15 years data set into three sub periods; pre-crisis, crisis, and post crisis periods);particularly make attention to the global financial crisis of 2007~2008. The return and volatility spillovers are modeled through the GARCH(generalized autoregressive conditional heteroscedasticity),pairwise Granger causality tests, and the forecast error variance decomposition in a generalized VAR(vector auto regression) models. This paper shows that volatility and return spillovers behave very differently over time, during the pre-crisis, crisis, and post crisis periods. Importantly, Asian emerging stock markets interaction is less before the global financial crisis period. The return and volatility spillover indices touch their respective historical peaks during the global financial crisis 2007~2008,however Bangladeshi market faces this condition in 2009~2010. | Bhowmik RONI Ghulam ABBAS Shouyang WANG | 2018 | Journal of Systems Science and Information2018，9，2： | 6 |
| 9 | FORECASTING CHINA'S FOREIGN TRADE VOLUME WITH A KERNEL-BASED HYBRID ECONOMETRIC-AI ENSEMBLE LEARNING APPROACH显示文摘Due to the complexity of economic system and the interactive effects between all kinds of economic variables and foreign trade, it is not easy to predict foreign trade volume. However, the difficulty in predicting foreign trade volume is usually attributed to the limitation of many conventional forecasting models. To improve the prediction performance, the study proposes a novel kernel-based ensemble learning approach hybridizing econometric models and artificial intelligence (AI) models to predict China's foreign trade volume. In the proposed approach, an important econometric model, the co-integration-based error correction vector auto-regression (EC-VAR) model is first used to capture the impacts of all kinds of economic variables on Chinese foreign trade from a multivariate linear anal- ysis perspective. Then an artificial neural network (ANN) based EC-VAR model is used to capture the nonlinear effects of economic variables on foreign trade from the nonlinear viewpoint. Subsequently, for incorporating the effects of irregular events on foreign trade, the text mining and expert's judgmental adjustments are also integrated into the nonlinear ANN-based EC-VAR model. Finally, all kinds of economic variables, the outputs of linear and nonlinear EC-VAR models and judgmental adjustment model are used as input variables of a typical kernel-based support vector regression (SVR) for en- semble prediction purpose. For illustration, the proposed kernel-based ensemble learning methodology hybridizing econometric techniques and AI methods is applied to China's foreign trade volume predic- tion problem. Experimental results reveal that the hybrid econometric-AI ensemble learning approach can significantly improve the prediction performance over other linear and nonlinear models listed in this study. | Lean YU Shouyang WANG Kin Keung LAI | 2008 | Journal of Systems Science & Complexity2008，21，1： | 5 |
| 10 | A Demand Forecasting Method Based on Stochastic Frontier Analysis and Model Average: An Application in Air Travel Demand Forecasting显示文摘Demand forecasting is often difficult due to the unobservability of the applicable historical demand series. In this study, the authors propose a demand forecasting method based on stochastic frontier analysis(SFA) models and a model average technique. First, considering model uncertainty,a set of alternative SFA models with various combinations of explanatory variables and distribution assumptions are constructed to estimate demands. Second, an average estimate from the estimated demand values is obtained using a model average technique. Finally, future demand forecasts are achieved, with the average estimates used as historical observations. An empirical application of air travel demand forecasting is implemented. The results of a forecasting performance comparison show that in addition to its ability to estimate demand, the proposed method outperforms other common methods in terms of forecasting passenger traffic. | ZHANG Xinyu ZHENG Yafei WANG Shouyang | 2019 | Journal of Systems Science & Complexity2019，32，2： | 5 |
| 11 | AN INTERVAL METHOD FOR STUDYING THE RELATIONSHIP BETWEEN THE AUSTRALIAN DOLLAR EXCHANGE RATE AND THE GOLD PRICE显示文摘这份报纸建议一个间隔方法对美元和金价格探索在澳大利亚的美元的汇率之间的关系,用每周、每月、季度的数据。与间隔方法,间隔样品数据被形成介绍变量的轻快。ILS 途径被扩大到多模型评价,计算计划被提供。实验证据建议 ILS 估计很好描绘汇率怎么联系到金价格,两个在长期间并且短期。在间隔和点方法之间的比较显示 OLS 和 ILS 估计之间的差别从每周的数据正在增加到季度的数据,自从最低频率点数据失去了轻快的大多数信息。 | Ai HAN K.K.LAI Shouyang WANG Shanying XU | 2012 | Journal of Systems Science & Complexity2012，25，1： | 4 |
| 12 | Thermophysical properties of a novel high entropy hafnate ceramic显示文摘High-entropy oxides(HEOs)are considered promising thermal barrier coating(TBC)materials due to their unique thermophysical performances induced by the entropy effects.In this work,(La_(0.2)Ce_(0.2)Pr_(0.2)Sm_(0.2)Eu_(0.2))_(2)Hf_(2)O_(7)high entropy hafnate,as a thermal barrier coating(TBC)material,was successfully synthesized by solution combustion method for the first time.From the X-ray diffraction,scanning electron microscopy,and transmission electron microscopy results,it is confirmed that(La_(0.2)Ce_(0.2)Pr_(0.2)Sm_(0.2)Eu_(0.2))_(2)Hf_(2)O_(7)has pure single-phase ordered pyrochlore structure with highly homogeneous composition at both micrometer and nanometer scales.The synthesized(La_(0.2)Ce_(0.2)Pr_(0.2)Sm_(0.2)Eu_(0.2))2 Hf2O7 possesses excellent phase stability at 1600℃and demonstrates a low thermal conductivity(1.0-1.24 W·m^(-1)·K^(-1))which is lower than those of rare earth hafnates(RE2Hf2O7,RE=La,Ce,Pr,Sm,Eu).Therefore,it provides a new perspective and potential to prompt the next generation TBC materials with better performance. | Longkang Cong Shouyang zhang Shengyue Gu Wei Li | 2021 | Journal of Materials Science & Technology2021，，26： | 4 |
| 13 | High-entropy(Y_(0.2)Gd_(0.2)Dy_(0.2)Er_(0.2)Yb_(0.2))2Hf_(2)O_(7) ceramic: A promising thermal barrier coating material显示文摘Thermal barrier coating(TBC)materials perform an increasingly important role in the thermal or chemical protection of hot components in a gas turbine.In this study,a novel high entropy hafnate(Y_(0.2)Gd_(0.2)Dy_(0.2)Er_(0.2)Yb_(0.2))_(2)Hf_(2)O_(7) was synthesized by solution combustion method and investigated as a potential TBC layer.The as-synthesized(Y_(0.2)Gd_(0.2)Dy_(0.2)Er_(0.2)Yb_(0.2))_(2)Hf_(2)O_(7) possesses a pure single disordered fluorite phase with a highly homogeneous distribution of rare earth(RE)cations,exhibiting prominent phase stability and excellent chemical compatibility with Al_(2)O_(3) even at 1300°C.Moreover,(Y_(0.2)Gd_(0.2)Dy_(0.2)Er_(0.2)Yb_(0.2))_(2)Hf_(2)O_(7) demonstrates a more sluggish grain growth rate than Y_(2)Hf_(2)O_(7).The thermal conductivity of(Y_(0.2)Gd_(0.2)Dy_(0.2)Er_(0.2)Yb_(0.2))_(2)Hf_(2)O_(7)(0.73-0.93 W m^(-1)K^(-1))is smaller than those of components RE_(2)Hf_(2)O_(7) and many high entropy TBC materials.Beside,the calculated thermal expansion coefficient(TEC)of(Y_(0.2)Gd_(0.2)Dy_(0.2)Er_(0.2)Yb_(0.2))_(2)Hf_(2)O_(7)(10.68×10^(-6)/K,1100°C)is smaller than that of yttriastabilized zirconia(YSZ).Based on the results of this work,(Y_(0.2)Gd_(0.2)Dy_(0.2)Er_(0.2)Yb_(0.2))_(2)Hf_(2)O_(7) is suitable for the next generation TBC materials with outstanding properties. | Longkang Cong Wei Li Jiancheng Wang Shengyue Gu Shouyang Zhang | 2022 | Journal of Materials Science & Technology2022，，6： | 4 |
| 14 | A MULTISCALE MODELING APPROACH INCORPORATING ARIMA AND ANNS FOR FINANCIAL MARKET VOLATILITY FORECASTING显示文摘 | XIAO Yi XIAO Jin LIU John WANG Shouyang | 2014 | Journal of Systems Science & Complexity2014，27，1： | 4 |
| 15 | EFFICIENCY DECOMPOSITION WITH SHARED INPUTS AND OUTPUTS IN TWO-STAGE DEA显示文摘数据包封分析(DEA ) 是为与多重输入和产量测量决策单位(DMU ) 的相对效率的一个有效非参量的方法。处于许多真实状况, DMU 的内部结构是二阶段的网络进程,分享的输入在两个阶段生产的阶段和普通产量使用了。例如,医院有二阶段的网络结构。舞台 1 消费象产生象医药记录,洗衣店和家务那样的产量的信息技术系统,植物,设备和主管人员那样的资源。舞台 2 消费舞台 1 使用的资源(命名分享的输入) 和舞台 1 产生的产量(命名中间的措施) 的一样的集合提供耐心的服务。而且,一些例如,输出耐心的满足度,被二个单个阶段一起产生(命名分享的产量) 。因为一些分享的输入和产量努力被分开并且分配到各单个的舞台,它需要为处于如此的问题评估二阶段的网络进程的性能开发二阶段的 DEA 方法。这份报纸扩大集中的模型测量二阶段的过程的 DEA 效率与非, splittable 分享了输入和产量。一条加权的添加剂途径被用来联合二个单个阶段。而且,添加剂效率分解模型被开发同时评估最大并且为单个阶段的最小的可完成的效率。最后,中国建设的分支在安徽省存的 17 城市的一个例子被采用说明建议途径。 | Lin Li Qianzhi Dai Haijun Huang Shouyang Wang | 2016 | Journal of Systems Science and Systems Engineering2016，25，1： | 4 |
| 16 | Weathering-pedogenesis of Carbonate Rocks and Its Environmental Effects in Subtropical Region显示文摘我们在中国的副热带的区域调查了碳酸盐岩石和它的环境效果的天气成土作用。调查证明碳酸盐岩石的天气成土作用在副热带的区域是腐蚀和淀积作用和交代作用的一个联合行动的过程。它被描绘由多级式,多路径和多风格。与碳酸盐岩石的天气成土作用的坚持的发展,交代矿床成土作用日益增多地成为了天气成土作用和矿物质的形成的主导的风格的主要过程。并且它通过碳酸盐岩石的天气成土作用的进化的整个过程继续。碳酸盐岩石的天气成土作用的阶段进化和最新生产的矿物质的分别进化被描绘由明显垂直地 zoning 结构和在捱过侧面的碳酸盐岩石中的元素 geochemical 特征的阶段的规则。碳酸盐岩石的天气成土作用的 geochemical 过程能被划分成三个 geochemical 进化阶段,即, Ca, Mg 弄空和 Si, Al 丰富舞台;Fe, Mn 丰富阶段和在副热带的区域的 Al 丰富舞台。与三个 geochemical 进化阶段一致,形成的顺序和矿物质的进化能被划分成泥土矿物质阶段;Fe, Mn 氧化物和 gibbsite 阶段。重元素的化学形式上的碳酸盐岩石的天气成土作用的影响主要在天气成土作用的过程经由最新生产的部件和矿物质被影响,例如,氧化铁矿物质和有机物。为 F 并且作为的动员,运输和污染的重要机制被影响 F 并且作为在在副热带的石灰岩地区常见的地形地区的氧化铁矿物质的表面上的选择吸附和解吸附作用,即,在天气成土作用的进程的最新生产的矿物质的矿物质表面上的选择吸附和解吸附作用在副热带的区域在地球的表面和环境质量上控制元素的 geochemical 行为。 | ZHU Lijun HE Shouyang LI Jingyang | 2008 | Acta Geologica Sinica(English Edition)2008，82，5： | 4 |
| 17 | DID SPECULATIVE ACTIVITIES CONTRIBUTE TO HIGH CRUDE OIL PRICES DURING 1993 TO 2008?显示文摘By applying two nonlinear Granger causality testing methods and rolling window strat-egy to explore the relationship between speculative activities and crude oil prices,the unidirectionalGranger causality from speculative activities to returns of crude oil prices during the high price phase isdiscovered.It is proved that speculative activities did contribute to high crude oil prices after the Asianfinancial crisis and OPEC's output cut in 1998.The unidirectional Granger causality from returns ofcrude oil prices to speculative activities is significant in general.But after 2000,with the sharp rise incrude oil prices,this unidirectional Granger causality became a complex nonlinear relationship,whichcannot be detected by any linear Granger causality test. | Xun ZHANG Kin Keung LAI Shouyang WANG | 2009 | Journal of Systems Science & Complexity2009，22，4： | 4 |
| 18 | The geochemical characteristics of aqueous rare-earth elements in shallow karst groundwater in Guiyang City, China显示文摘Fifty-seven shallow groundwater samples were collected from Guiyang karst basin, China, to analyze the aqueous rare-earth elements in low-water seasons and it is shown that the total amount of rare-earth elements (ΣREE) in karst groundwater is exceedingly low compared with that in carbonate rocks or weathering crusts of carbonate rocks, and ranges from 0.01 to 0.43, from 0.03 to 0.27, from 0.03 to 0.19 and from 0.05 to 1.38 μg·L-1 for dolomite, dolomitic & limestone, limestone and clastic rock aquifer, respectively. Both distributions and contents of rare-earth elements (REE) in karst groundwater reflect the lithology of host rocks or weathering crusts of carbonate rocks through which groundwater flows. The chondrite-normalized patterns show a non-flat profile with higher enrichment of slightly light rare-earth elements (LREE) than heavy rare-earth elements (HREE), prominent fractionation between LREE and HREE, negative Ce anomalies and negative or positive Eu anomalies. There is more obvious fractionation between LREE and HREE in groundwater than that in carbonate rocks and their weathering crusts due to high contents of HCO3? and PH in groundwater. In shallow karst groundwater, REE(CO3)n2n-3 (n=1 and 2) is the main inorganic species of REE. But for a clastic rock aquifer, both REESO4+ and REECO3+ are the main inorganic species of REE. Species of REE in groundwater is closely associated with the hydrochemical type of groundwater which is predominated by the lithology of host rocks, groundwater-rock interaction and weathering-pedogenesis of carbonate rocks. | HE Shouyang ZHU Lijun YANG Ruidong SHEN Zheng YU Xiaohong | 2011 | Chinese Journal Of Geochemistry2011，30，1： | 4 |
| 19 | INTERVAL TIME SERIES ANALYSIS WITH AN APPLICATION TO THE STERLING-DOLLAR EXCHANGE RATE显示文摘传统的经济计量学长采用了“点”测量时间系列数据。处于真实生活状况,然而,它承受轻快信息的损失,自从许多变量被间隔在一个给定的时期围住。处理这个问题,这篇论文为间隔时间系列分析提供新方法论。这个概念“间隔随机的过程”正式在基于点的经济计量学被定义为“随机的过程”的一个对应物。作者介绍间隔 stationarity 的概念,间隔统计(包括间隔平均数,间隔变化,等等) 并且建议间隔调查在间隔过程之间的动态关系的线性模型。为评价的一条新基于间隔的优化途径被建议,并且相应评估标准被导出。证明新间隔方法提供有效结果,英磅美元汇率上的一个实验例子被举。 | Ai HAN Yongmiao HONG K. K. LAI Shouyang WANG | 2008 | Journal of Systems Science & Complexity2008，21，4： | 4 |
| 20 | A trust region algorithm for bilevel programing problems显示文摘A trust region algorithm is proposed for solving bilevel programming problems where the lower level programming problem is a strongly convex programming problem with linear constraints. This algorithm is based on a trust region algorithm for nonsmooth unconstrained optimization problems, and its global convergence is also proved. | LIU Guoshan 1, HAN Jiye 2 and WANG Shouyang 3 1. Department of Mathematics, Beijing Normal University, Beijing 100875, China 2. Institute of Applied Mathematics, Chinese Academy of Sciences, Beijing 100080, China 3. Institute of Systems Science, Chi | 1998 | Chinese Science Bulletin1998，43，10： | 3 |
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