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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 | 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, https://www.nrel.gov/pv/cell-efficiency.html. | Zhimin Fang Ling Liu Zhiming Zhang Shangfeng Yang Fangyang Liu Mingzhen Liu Liming Ding | 2019 | Science Bulletin2019，64，8： | 18 |
| 4 | 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 |
| 5 | 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 |
| 6 | 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 |
| 7 | 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 |
| 8 | 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 |
| 9 | 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 |
| 10 | 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 |
| 11 | 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 |
| 12 | Chemical functionalization of 2D black phosphorus显示文摘As an emerging two-dimensional material,black phosphorus(BP)has fascinating structure and electronic properties,affording broad applications in fieldeffect transistors,optoelectronic devices,energy devices,and biomedicines.However,the lone pair electrons of phosphorus atoms readily react with oxygen,so few-layer BP is easily oxidized and degraded when exposed to air.Therefore,the ambient stability of BP needs to be enhanced for its potential application.Chemical functionalization is one of the most effective methods for improving the ambient stability of few-layer BP.In this review,we provide a comprehensive overview of the chemical functionalization of BP,focusing on covalent and noncovalent functionalization and surface coordination.The influence of the functionalization pattern on the electronic properties and ambient stability of BP is summarized.Finally,the challenges and future development of chemical functionalization of BP are discussed. | Yajuan Liu Muqing Chen Shangfeng Yang | 2021 | InfoMat2021，3，3： | 2 |
| 13 | The Weakening Relationship between ENSO and the South China Sea Summer Monsoon Onset in Recent Decades显示文摘The El Ni?o-Southern Oscillation(ENSO) is traditionally regarded as the most important factor modulating the interannual variation of the South China Sea summer monsoon(SCSSM) onset. A preceding El Ni?o(La Ni?a) usually tends to be followed by a delayed(an advanced) monsoon onset. However, the close relationship between ENSO and SCSSM onset breaks down after the early-2000 s, making seasonal prediction very difficult in recent years. Three possible perspectives have been proposed to explain the weakening linkage between ENSO and SCSSM onset, including interdecadal change of the ENSO teleconnection(i.e., the Walker circulation), interferences of other interannual variability(i.e., the Victoria mode), and disturbances on intraseasonal time scales(i.e., the quasi-biweekly oscillation). By comparing the epochs of 1979–2001 and 2002–19, it is found that the anomalous tropical Walker circulation generated by ENSO is much weaker in the latter epoch and thus cannot deliver the ENSO signal to the SCSSM onset. Besides, in recent years, the SCSSM onset is more closely linked to extratropical factors like the Victoria mode, and thus its linkage with ENSO becomes weaker. In addition to these interannual variabilities, the intraseasonal oscillations like the quasi-biweekly oscillation can disrupt the slow-varying seasonal march modulated by ENSO. Thus, the amplified quasi-biweekly oscillation may also contribute to the weakening relationship after the early-2000 s. Given the broken relationship between ENSO and SCSSM onset, the extratropical factors should be considered in order to make skillful seasonal predictions of SCSSM onset, and more attention should be paid to the extended-range forecast based on intraseasonal oscillations. | Peng HU Wen CHEN Shangfeng CHEN Lin WANG Yuyun LIU | 2022 | Advances in Atmospheric Sciences2022，39，3： | 1 |
| 14 | Palladium-catalyzed cyclization of 1-alkynyl-8-iodonaphthalene and double isocyanides for the synthesis of acenaphtho[1,2-b]pyrroles显示文摘A palladium-catalyzed formal[2+2+1]cyclization of 1-alkynyl-8-iodonaphthalene with double isocyanides is developed herein.The transformation worked well to produce a series of 7 H-acenaphtho[1,2-b]pyrrole with a broad reaction scope.Isocyanides play a dual role in the reaction.One is a C1 building block,and another is used as C1 N1 component.In the process,the[2+2+1]cyclization involves imidoylation,regioselective addition of imidoylpalladium species into alkyne,double imidoylation,and another addition of the resulting imidoylpalladium species into imine bonds. | Shangfeng Ren Keke Huang Jin-Biao Liu Lianpeng Zhang Min Hou Guanyinsheng Qiu | 2022 | Chinese Chemical Letters2022，33，11： | 1 |
| 15 | Research on Electric Impedance Spectroscopy of Living Cell Suspensions by a Chip with Microelectrodes显示文摘A microfabricated electrical impedance spectroscopy (EIS) chip with microelectrodes was developed.The substrate and the electrodes of the chip were made of glass and gold,respectively.The experimental results demonstrated that the EIS-chip could distinguish different solutions (physiological saline,culture medium,living cell suspension etc.) by scanning from 10Hz to 45kHz.A 6-element circuit model was used for fitting the real part and the imaginary part admittance curves of the living cell suspension.An actual circuit was also built and tested to verify the 6-element circuit model proposed.The micro-EIS chip has several advantages including the use of small sample volumes,high resolution and ease of operation.It shows good application prospects in the areas of cellular electrophysioiogy,drug screening and bio-sensors etc. | Xing Yang Zhaoying Zhou Mingfei Xiao Ying Wu Shangfeng Liu | 2006 | 稀有金属材料与工程2006，35，A03： | 1 |
| 16 | MicroRNA-124–Mediated Regulation of Inhibitory Member of Apoptosis-Stimulating Protein of p53 Family in Experimental Stroke显示文摘 | Xiangrong Liu Fang Li Shangfeng Zhao Yumin Luo Jun Kang Haiping Zhao Feng Yan Sijie Li Xunming Ji | 2013 | Stroke2013，，7： | 1 |
| 17 | Numerical prediction and similarity study of pressure fluctuation in a prototype Kaplan turbine and the model turbine显示文摘 | Yulin Wu Shuhong Liu Hua-Shu Dou Shangfeng Wu Tiejun Chen | 2011 | Computers and Fluids2011，，： | 1 |
| 18 | The occurrence of vanadium in nature:its biogeochemical cycling and relationship with organic matter—a case study of the Early Cambrian black rocks of the Niutitang Formation,western Hunan,China显示文摘Vanadium in the black rocks has economic and environmental impacts.In sediments,it is broadly disseminated as a multivalent metal element mainly sensitive to redox settings.Globally in petroleum,it is considered an abundant component.Vanadium is an essential tool to determine the relationship of the Earth with extra-terrestrial bodies.In the Yangtze region,the black rocks of the Early Cambrian Niutitang Formation are highly enriched in the concentration of V,Co,Ni and Mo.These sediments are comprised of a high total organic carbon content,and the average concentration of vanadium is over 240 ppm.Here we discuss the mechanisms and conditions that were responsible for the accumulation of vanadium in these black sediments in the Yangtze region.The oxygenated ocean water is favorable for the dissolved vanadate species Ⅴ(Ⅴ).Therefore,in oxic ocean-water,it can be reduced by organic matters or by H_(2)S to vanadyl ions Ⅴ(Ⅳ),which can facilely be adsorbed to the tiny particles and finally deposit into the sediments with the settling of the particles.The presence of V_(2)O_(3) in the Niutitang Formation indicates the isomorphism state of vanadium existence in the clay minerals.Clays and pyrite are the most favorable mineral for vanadium enrichment.However,it is suggested the quartz of non-biogenic origin might be unfavorable for vanadium enrichment.Vanadium is mainly derived from the diagenetic transformation of its precursor(porphyrin pigments and chlorophyll)from the organism.During the Early Cambrian period,the massive transgression in the sea level created a favorable environment for organisms to survive.Additionally,the hydrothermal activities brought massive nutrient supply in the form of vanadium and other metal elements from the deep Earth.These creatures consumed the vanadium-rich nutrients,which became a part of their bodies in the form of hard and soft parts.Later on,when these organisms died and were submerged in the sediments.After the diagenetic actions,this vanadium became a part of these black sediments along with organic carbon.Therefore,these black rocks in the Yangtze region are enriched in vanadium and organic carbon.It is suggested the various processes such as adsorption,complexation,and reductions are the main factors responsible for the precipitation of dissolved vanadium into the organically rich sediments. | Rizwan Sarwar Awan Chenglin Liu Shangfeng Yang Yuping Wu Qibiao Zang Ashar Khan Guoxiong Li | 2021 | Acta Geochimica2021，40，6： | 1 |
| 19 | Micro-motion dynamics analysis of ballistic targets based on infrared detection显示文摘The dynamic characteristics related to micro-motions,such as mechanical vibration or rotation, play an essential role in classifying and recognizing ballistic targets in the midcourse, and recent researches explore ways of extracting the micro-motion features from radar signals of ballistic targets. In this paper, we focus on how to investigate the micro-motion dynamic characteristics of the ballistic targets from the signals based on infrared(IR) detection, which is mainly achieved by analyzing the periodic fluctuation characteristics of the target IR irradiance intensity signatures.Simulation experiments demonstrate that the periodic characteristics of IR signatures can be used to distinguish different micromotion types and estimate related parameters. Consequently, this is possible to determine the micro-motion dynamics of ballistic targets based on IR detection. | Junliang Liu Yanfang Li Shangfeng Chen Huanzhang Lu Bendong Zhao | 2017 | Journal of Systems Engineering and Electronics2017，28，3： | 1 |
| 20 | Fullerenes encaging metal clusters-clusterfullerenes显示文摘 | YANG Shangfeng LIU Fupin CHEN Chuanbao | 2011 | Chemical Communications2011，47，11： | 1 |
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