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| 1 | Convolutional neural networks for time series classification显示文摘Time series classification is an important task in time series data mining, and has attracted great interests and tremendous efforts during last decades. However, it remains a challenging problem due to the nature of time series data: high dimensionality,large in data size and updating continuously. The deep learning techniques are explored to improve the performance of traditional feature-based approaches. Specifically, a novel convolutional neural network(CNN) framework is proposed for time series classification. Different from other feature-based classification approaches,CNN can discover and extract the suitable internal structure to generate deep features of the input time series automatically by using convolution and pooling operations. Two groups of experiments are conducted on simulated data sets and eight groups of experiments are conducted on real-world data sets from different application domains. The final experimental results show that the proposed method outperforms state-of-the-art methods for time series classification in terms of the classification accuracy and noise tolerance. | Bendong Zhao Huanzhang Lu Shangfeng Chen Junliang Liu Dongya Wu | 2017 | Journal of Systems Engineering and Electronics2017，28，1： | 33 |
| 2 | 26mA cm^(-2) J_(sc) from organic solar cells with a low-bandgap nonfullerene acceptor显示文摘Nonfullerene-based organic solar cells(NFOSCs)have received great interest recently due to their higher performance and greater potential compared with fullerene-based solar cells[1].Power conversion efficiencies(PCEs)over 13% have been realized in single-junction NFOSCs[2].Compared with traditional fullerene acceptors,the greatest advantage of nonfullerene acceptors is their stronger light-harvesting capability in the visible and | Zuo Xiao Xue Jia Dan Li Shizhe Wang Xinjian Geng Feng Liu Junwu Chen Shangfeng Yang Thomas P.Russell Liming Ding | 2017 | Science Bulletin2017，62，22： | 28 |
| 3 | A chlorinated copolymer donor demonstrates a 18.13% power conversion efficiency显示文摘The rapid development of low-bandgap(LBG)nonfullerene acceptors and wide-bandgap(WBG)copolymer donors in recent years has boosted the power conversion efficiency(PCE)of organic solar cells(OSCs)to the 18%level[1−21].The commercialization of OSCs is highly expected.However,critical issues like the cost and the stability also determine whether OSCs can enter the market or not[22]. | Jianqiang Qin Lixiu Zhang Chuantian Zuo Zuo Xiao Yongbo Yuan Shangfeng Yang Feng Hao Ming Cheng Kuan Sun Qinye Bao Zhengyang Bin Zhiwen Jin and Liming Ding | 2021 | Journal of Semiconductors2021，42，1： | 19 |
| 4 | CsPbI_(2.25)Br_(0.75) solar cells with 15.9% ef?ciency显示文摘Organic-inorganic perovskite (ABX3) solar cells (PSCs) have attracted wide interest in recent years (1)The power conversion efficiency (PCE) has increased up to 23.7%(NREL Best Research-Cell Efficiency Chart, http://gffzz8798726073dc471csbuvb60q5bkqk6kw9.ffgz.tsg.suse.edu.cn/pv/cell-efficiency.html. | Zhimin Fang Ling Liu Zhiming Zhang Shangfeng Yang Fangyang Liu Mingzhen Liu Liming Ding | 2019 | Science Bulletin2019，64，8： | 18 |
| 5 | Thiolactone copolymer donor gifts organic solar cells a 16.72% efficiency显示文摘Since 1995,bulk-heterojunction organic solar cells consisting of one or two organic donors and one or two organic acceptors have been fighting for high power conversion efficiencies(PCEs)and good stability[1].Until recent years,this next-generation photovoltaic technology starts to offer decent PCEs,shedding the light on commercialization,and attracting great attention again[2-14].Compared w让h the continuously emerging highperformance nonfullerene acceptors,high-performance donors are rare. | Ji Xiong Ke Jin Yufan Jiang Jianqiang Qin Tan Wang Jinfeng Liu Qishi Liu Haili Peng Xiongfeng Li Anxin Sun Xianyi Meng Lixiu Zhang Ling Liu Wenting Li Zhimin Fang Xue Jia Zuo Xiao Yaqing Feng Xiaotao Zhang Kuan Sun Shangfeng Yang Shengwei Shi Liming Ding | 2019 | Science Bulletin2019，64，21： | 17 |
| 6 | Progress of the key materials for organic solar cells显示文摘Organic solar cells have attracted academic and industrial interests due to the advantages like lightweight,flexibility and roll-to-roll fabrication.Nowadays,18%power conversion efficiency has been achieved in the state-of-the-art organic solar cells.The recent rapid progress in organic solar cells relies on the continuously emerging new materials and device fabrication technologies,and the deep understanding on film morphology,molecular packing and device physics.Donor and acceptor materials are the key materials for organic solar cells since they determine the device performance.The past 25 years have witnessed an odyssey in developing high-performance donors and acceptors.In this review,we focus on those star materials and milestone work,and introduce the molecular structure evolution of key materials.These key materials include homopolymer donors,D-A copolymer donors,A-D-A small molecular donors,fullerene acceptors and nonfullerene acceptors.At last,we outlook the challenges and very important directions in key materials development. | Yang Tong Zuo Xiao Xiaoyan Du Chuantian Zuo Yuelong Li Menglan Lv Yongbo Yuan Chenyi Yi Feng Hao Yong Hua Ting Lei Qianqian Lin Kuan Sun Dewei Zhao Chunhui Duan Xiangfeng Shao Wei Li Hin-Lap Yip Zhengguo Xiaol Bin Zhang Qingzhen Bian Yuanhang Cheng Shengjian Liu Ming Cheng Zhiwen Jin Shangfeng Yang Liming Ding | 2020 | Science China Chemistry2020，63，6： | 15 |
| 7 | Induced J-aggregation in acceptor alloy enhances photocurrent显示文摘Carbon-oxygen-bridged (CO-bridged) ladder-type units already proved to be promising electron-donating building blocks for making acceptor-donor-acceptor (A-D-A) nonfullerene acceptors [1].Compared with traditional carbon-bridged (C-bridged) units, CObridged units present stronger electron-donating capability due to electron-rich oxygen atoms. | Ling Liu Qishi Liu Zuo Xiao Shangfeng Yang Yongbo Yuan Liming Ding | 2019 | Science Bulletin2019，64，15： | 13 |
| 8 | Interface engineering gifts CsPbI2.25Br0.75 solar cells high performance显示文摘Organic-inorganic halide perovskite (ABX3) solar cells (PSCs)have made great progress in recent years [1]. The power conversion efficiency (PCE) has increased up to 25.2%(NREL Best Research-Cell Efficiency Chart, http://gffzz8798726073dc471csbuvb60q5bkqk6kw9.ffgz.tsg.suse.edu.cn/pv/cell-efficiency.html, Accessed August 2019). However, they suffer from poor thermal stability due to the volatile A-site organic cations. | Zhimin Fang Xianyi Meng Chuantian Zuo Dan Li Zuo Xiao Chenyi Yi Mingkui Wang Zhiwen Jin Shangfeng Yang Liming Ding | 2019 | Science Bulletin2019，64，23： | 11 |
| 9 | Numerical simulation of pressure fluctuation in Kaplan turbine显示文摘As it is almost impossible to carry out the prototype hydro-turbine experiment be- fore the power plant is built up, rational prediction of pressure fluctuations in the prototype turbine is very important at the design stage. From this viewpoint, we at first treated the unsteady turbulent flow computation based on the modified RNG k-ε turbulence model through the whole flow passage to simulate the pressure fluctuation in a model turbine. Since fair agreement was recognized between the numerical results and the experimental data, this numerical method was applied to simulate the pressure fluctuations in the prototype turbine. From the comparison of them with the model turbine results, it is seen that their qualitative trend of pres- sure fluctuations are similar, but an appreciable difference is observed between the amplitudes of pressure fluctuation of the prototype turbine and that of the model turbine. Though the present findings may be explained by the effect of Reynolds number, further studies are expected for quantitative interpretation. We paid atten- tion to the interaction between the fluid and turbine structure. Adopting a weak fluid-solid coupling method, we studied the pressure fluctuation in the prototype turbine to clarify how the elastic behavior of runner blades influenced the charac- teristics of pressure fluctuation. | LIU ShuHong SHAO Jie WU ShangFeng WU YuLin | 2008 | Science China(Technological Sciences)2008，51，8： | 9 |
| 10 | Single titanium-oxide species implanted in 2D g-CsN4 matrix as a highly efficient visible-light CO2 reduction photocatalyst显示文摘A visible-light-response, efficie nt and robust photo-catalyst for CO2 reduction is highly desirable. Herein, we demonstrate that single titanium-oxide species impla nted in two-dime nsion al (2D) graphitic carb on n itride (g-C3N4) matrix (2D TiO-CN) can efficie ntly photo-catalyze the reduction of CO2 to CO under the irradiation of visible light. The synergistic interaction between single titanium oxide species and g-C3N4 in 2D TiO-CN not only enhances the separation of photo-excited charges, but also results in visible light response of single titanium-oxide species, realizing high activity of CO2 photo-reduction with extremely high CO generation rate of 283.9 pmol·h^-1·g^-1, 5.7, 6.8 and 292.2 times larger than those of TQ2/CN hybrid material, CN and commercial TiO2, respectively. Time-resolved fluoresce nee and electron spin resonance spectroscopy revealed the catalytic mechanism of the fabricated 2D TiO-CN photocatalysts for CO2 reduction. | Shangfeng Tang Xuepeng Yin Guanyu Wang Xiuli Lu Tongbu Lu | 2019 | Nano Research2019，12，2： | 8 |
| 11 | On the Weakened Relationship between Spring Arctic Oscillation and Following Summer Tropical Cyclone Frequency over the Western North Pacific:A Comparison between 1968–1986 and 1989–2007显示文摘This study documents a weakening of the relationship between the spring Arctic Oscillation(AO) and the following summer tropical cyclone(TC) formation frequency over the eastern part(150?–180?E) of the western North Pacific(WNP). The relationship is strong and statistically significant during 1968–1986,but becomes weak during 1989–2007. The spring AOrelated SST,atmospheric dynamic,and thermodynamic conditions are compared between the two epochs to understand the possible reasons for the change in the relationship. Results indicate that the spring AO leads to an El Ni ?no-like SST anomaly,lower-level anomalous cyclonic circulation,upper-level anomalous anticyclonic circulation,enhanced ascending motion,and a positive midlevel relative humidity anomaly in the tropical western–central Pacific during 1968–1986,whereas the AOrelated anomalies in the above quantities are weak during 1989–2007. Hence,the large-scale dynamic and thermodynamic anomalies are more favorable for TC formation over the eastern WNP during 1968–1986 than during 1989–2007. | CAO Xi CHEN Shangfeng CHEN Guanghua CHEN Wen WU Renguang | 2015 | Advances in Atmospheric Sciences2015，32，10： | 6 |
| 12 | Direct imaging and determination of the crystal structure of six-layered graphdiyne显示文摘自从它的发现,因为它在由一根电子横梁的照耀下面是太精细的,很少层 graphdiyne 的水晶结构的直接成像和决心证明了困难。在这个工作,六分层的 graphdiyne nanosheet 的水晶结构被低电压的传播电子显微镜学(TEM ) 直接用低当前的密度观察。高分辨率的 TEM (HRTEM ) 模拟,电子精力损失光谱学,和电子衍射的联合使用表明同样综合的 nanosheet 是有 2.19 nm 的厚度的水晶的 graphdiyne (相应于六层的厚度) 并且叠的显示出的 ABC。因此,这个工作为存在和很少层 graphdiyne 的水晶结构提供直接证据,它是对 graphene 补足的二维的碳材料的一种新类型。 | Chao Li Xiuli Lu Yingying Han Shangfeng Tang Yi Ding Ruirui Liu Haihong Bao Yuliang Li Jun Luo Tongbu Lu | 2018 | Nano Research2018，11，3： | 5 |
| 13 | Intensified Impact of Northern Tropical Atlantic SST on Tropical Cyclogenesis Frequency over the Western North Pacific after the Late 1980s显示文摘Previous studies suggest that spring SST anomalies over the northern tropical Atlantic(NTA) affect the tropical cyclone(TC) activity over the western North Pacific(WNP) in the following summer and fall. The present study reveals that the connection between spring NTA SST and following summer–fall WNP TC genesis frequency is not stationary. The influence of spring NTA SST on following summer–fall WNP TC genesis frequency is weak and insignificant before, but strong and significant after, the late 1980 s. Before the late 1980 s, the NTA SST anomaly-induced SST anomalies in the tropical central Pacific are weak, and the response of atmospheric circulation over the WNP is not strong. As a result, the connection between spring NTA SST and following summer–fall WNP TC genesis frequency is insignificant in the former period. In contrast,after the late 1980 s, NTA SST anomalies induce pronounced tropical central Pacific SST anomalies through an Atlantic–Pacific teleconnection. Tropical central Pacific SST anomalies further induce favorable conditions for WNP TC genesis,including vertical motion, mid-level relative humidity, and vertical zonal wind shear. Hence, the connection between NTA SST and WNP TC genesis frequency is significant in the recent period. Further analysis shows that the interdecadal change in the connection between spring NTA SST and following summer–fall WNP TC genesis frequency may be related to the climatological SST change over the NTA region. | Xi CAO Shangfeng CHEN Guanghua CHEN Renguang WU | 2016 | Advances in Atmospheric Sciences2016，33，8： | 5 |
| 14 | Efficient and photostable CsPbI_(2) Br solar cells realized by adding PMMA显示文摘Organic–inorganic hybrid perovskite materials demonstrate promising applications in high-efficiency perovskite solar cells (PSCs) with a certified power conversion efficiency(PCE) of 25.5%(http://gffzz8798726073dc471csbuvb60q5bkqk6kw9.ffgz.tsg.suse.edu.cn/pv/cell-efficiency.html). | Yanbo Shang Zhimin Fang Wanpei Hu Chuantian Zuo Bairu Li Xingcheng Li Mingtai Wang Liming Ding Shangfeng Yang | 2021 | Journal of Semiconductors2021，42，5： | 4 |
| 15 | Ionic liquid modified Pt/C electrocatalysts for cathode application in proton exchange membrane fuel cells显示文摘The modification of Pt/C catalyst by using ionic liquids to improve their catalyst activities has been reported by many researchers,but their practical behavior in operating fuel cells is still unknown.In this work,we study the ionic liquid modified Pt/C nanoparticle catalysts within cathodes for proton exchange membrane fuel cells.The influence of the ionic liquid amount,adsorption times and dispersing solvents are investigated.The experiment results show the best performance enhancement is achieved through two-time surface modification with 2 wt-%ionic liquid solution.The mechanisms are explored with the attribution to the high oxygen solubility in the ionic liquid enabling an improved oxygen diffusion in micropores and to good hydrophobicity facilitating water expelling from the active sites in fuel cell operation. | Huixin Zhang Jinying Liang Bangwang Xia Yang Li Shangfeng Du | 2019 | Frontiers of Chemical Science and Engineering2019，13，4： | 4 |
| 16 | Numerical Experiments on the Impact of Spring North Pacific SSTA on NPO and Unusually Cool Summers in Northeast China显示文摘A set of numerical experiments designed to analyze the oceanic forcing in spring show that the combined forcing of cold(warm) El Nino(La Nina) phases in the Nino4 region and sea surface temperature anomalies(SSTA) in the westerly drifts region would result in abnormally enhanced NorthEast Cold Vortex(NECV) activities in early summer. In spring, the central equatorial Pacific El Nino phase and westerly drift SSTA forcing would lead to the retreat of non-adiabatic waves,inducing elliptic low-frequency anomalies of tropical air flows. This would enhance the anomalous cyclone–anticyclone–cyclone–anticyclone low-frequency wave train that propagates from the tropics to the extratropics and further to the mid-high latitudes, constituting a major physical mechanism that contributes to the early summer circulation anomalies in the subtropics and in the North Pacific mid-high latitudes. The central equatorial Pacific La Nina forcing in the spring would, on the one hand, induce teleconnection anomalies of high pressure from the Sea of Okhotsk to the Sea of Japan in early summer, and on the other hand indirectly trigger a positive low-frequency East Asia–Pacific teleconnection(EAP) wave train in the lower troposphere. | LIAN Yi ZHAO Bin SHEN Baizhu LI Shangfeng LIU Gang | 2014 | Advances in Atmospheric Sciences2014，31，6： | 4 |
| 17 | Robust model predictive control for greenhouse temperature based on particle swarm optimization显示文摘Application of model predictive control(MPC)in horticultural practice requires detailed models.However,even highly sophisticated greenhouse climate models are often known to have unknown dynamics affected by bounded uncertainties.To enforce robustness during the controller design stage,this paper proposes a particle swarm optimization(PSO)-based robust MPC strategy for greenhouse temperature systems.The strategy is based on a nonlinear physical temperature affine model.The robust MPC technique requires online solution of a minimax optimal control problem,which optimizes the tradeoff between set point tracking and cost requirements reduction.The minimax optimization problem is reformulated to a nonlinear programming problem with constraints.PSO is used to solve the reformulated problem and priority ranking of constraint fitness is proposed to guarantee that the constraints are satisfied.The results of simulations performed using the proposed control system show that the controller can effectively achieve the set point in the presence of disturbances and that it offers more suitable control variables,higher control precision,and stronger robustness than the conventional MPC. | Lijun Chen Shangfeng Du Yaofeng He Meihui Liang Dan Xu | 2018 | Information Processing in Agriculture2018，5，3： | 4 |
| 18 | Quantitative Assessment of Impacts of Regional Climate and Human Activities on Saline-alkali Land Changes:A Case Study of Qian'an County,Jilin Province显示文摘Interdecadal and interannual variations of saline-alkali land area in Qian′an County, Jilin Province, China were comprehensively analyzed in this paper by means of satellite remote sensing interpretation, field flux observations and regional climate diagnosis.The results show that on the interannual scale, the impact of climate factors accounts for 71.6% of the total variation of the saline-alkali land area, and that of human activities accounts for 28.4%.Therefore the impact of climate factors is obviously greater than that of human activities.On the interdecadal scale, the impact of climate factors on the increase of the saline-alkali land area accounts for 43.2%, and that of human activities accounts for 56.8%.The impact of human activities on the variation of saline-alkali land area is very clear on the interdecadal scale, and the negative impact of human activities on the environment should not be negligible.Besides, changes in the area of heavy saline-alkali land have some indication for development of saline-alkali land in Qian′an County. | LIAN Yi WANG Jie TU Gang REN Hongling SHEN Baizhu ZHI Keguang LI Shangfeng GAO Zongting | 2010 | Chinese Geographical Science2010，20，1： | 3 |
| 19 | BYSL contributes to tumor growth by cooperating with the mTORC2 complex in gliomas显示文摘Objective:BYSL,which encodes the Bystin protein in humans,is upregulated in reactive astrocytes following brain damage and/or inflammation.We aimed to determine the role and mechanism of BYSL in glioma cell growth and survival.Methods:BYSL expression in glioma tissues was measured by quantitative real-time PCR,Western blot,and immunohistochemistry.In vitro assays were performed to assess the role of BYSL in cell proliferation and apoptosis.Protein interactions and co-localization were determined by co-immunoprecipitation and double immunofluorescence.The expression and activity of the AKT/m TOR signaling molecules were determined by Western blot analysis,and the role of BYSL in glioma growth was confirmed in an orthotopic xenograft model.Results:The BYSL m RNA and protein levels were elevated in glioma tissues.Silencing BYSL inhibited glioma cell proliferation,impeded cell cycle progression,and induced apoptosis,whereas overexpressing BYSL protein led to the opposite effects.We identified a complex consisting of BYSL,RIOK2,and m TOR,and observed co-localization and positive correlations between BYSL and RIOK2 in glioma cells and tissues.Overexpressing BYSL or RIOK2 increased the expression and activity of AKT/m TOR signaling molecules,whereas downregulation of BYSL or RIOK2 decreased the activity of AKT/m TOR signaling molecules.Silencing BYSL or RIOK2 decreased the growth of the tumors and prolonged the lifespan of the animals in an orthotopic xenograft model.Conclusions:High expression of BYSL in gliomas promoted tumor cell growth and survival both in vitro and in vivo.These effects could be attributed to the association of BYSL with RIOK2 and m TOR,and the subsequent activation of AKT signaling. | Shangfeng Gao Zhuang Sha Junbo Zhou Yihao Wu Yunnong Song Cheng Li Xuejiao Liu Tong Zhang Rutong Yu | 2021 | Cancer Biology & Medicine2021，18，1： | 3 |
| 20 | CsPb(I_(x)Br_(1-x))_(3) solar cells显示文摘Owing to its nice performance, low cost, and simple solution-processing, organic-inorganic hybrid perovskite solar cell(PSC) becomes a promising candidate for next-generation high-efficiency solar cells.The power conversion efficiency(PCE) has boosted from 3.8% to 25.2% over the past ten years. Despite the rapid progress in PCE, the device stability is a key issue that impedes the commercialization of PSCs. Recently, all-inorganic cesium lead halide perovskites have attracted much attention due to their better stability compared with their organic-inorganic counterpart. In this progress report, we summarize the properties of CsPb(IxBr1-x)3 and their applications in solar cells. The current challenges and corresponding solutions are discussed. Finally, we share our perspectives on CsPb(IxBr1-x)3 solar cells and outline possible directions to further improve the device performance. | Xue Jia Chuantian Zuo Shuxia Tao Kuan Sun Yixin Zhao Shangfeng Yang Ming Cheng Mingkui Wang Yongbo Yuan Junliang Yang Feng Gao Guichuan Xing Zhanhua Wei Lijun Zhang Hin-Lap Yip Mingzhen Liu Qing Shen Longwei Yin Liyuan Han Shengzhong Liu Lianzhou Wang Jingshan Luo Hairen Tan Zhiwen Jin Liming Ding | 2019 | Science Bulletin2019，64，20： | 2 |
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