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| 1 | Tunable Schottky barrier width and enormously enhanced photoresponsivity in Sb doped SnS2 monolayer显示文摘Doping, which is the intentional introducti on of impurities into a material, can improve the metal-semiconductor interface by reducing Schottky barrier width. Here, we prese nt high-quality two-dime nsional SnS2 nano sheets with well-controlled Sb dopi ng concen tration via direct vapor growth approach and following micromechanical cleavage process. X-ray photoelectro n spectroscopy (XPS) measureme nt dem on strates that Sb contents of the doped samples are approximately 0.22%, 0.34% and 1.21%, respectively, and doping in duces the upward shift of the Fermi level with respect to the pristi ne SnS2. Tran smissio n electro n microscopy (TEM) characterizatio n exhibits that Sb-doped SnS2 nano sheets have a high-quality hexagonal symmetry structure and Sb element is uniformly distributed in the nano sheets. The phototra nsistors based on the Sb-doped SnS2 mono layers show n-type behavior with high mobility which is one order of magn itude higher than that of pristi ne SnS2 phototra nsistors. The photorespo nsivity and exter nal quantum efficiency (EQE) of Sb-S nS2 mono layers phototra nsistors are approximately three orders of magnitude higher than that of pristine SnS2 phototransistor. The results suggest that the method of reducing Shottky barrier width to achieve high mobility and photoresp on sivity is effective, and Sb-doped SnS2 mono layer has significant potential in future nanoelectronic and optoelectronic applications. | Junchi Liu Xiao Liu Zhuojun Chen Lili Miao Xingqiang Liu Bo Li Liming Tang Keqiu Chen Yuan Liu Jingbo Li Zhongming Wei Xidong Duan | 2019 | Nano Research2019，12，2： | 7 |
| 2 | Interaction-Aware Cut-In Trajectory Prediction and Risk Assessment in Mixed Traffic显示文摘Accurately predicting the trajectories of surrounding vehicles and assessing the collision risks are essential to avoid side and rear-end collisions caused by cut-in.To improve the safety of autonomous vehicles in the mixed traffic,this study proposes a cut-in prediction and risk assessment method with considering the interactions of multiple traffic participants.The integration of the support vector machine and Gaussian mixture model(SVM-GMM)is developed to simultaneously predict cut-in behavior and trajectory.The dimension of the input features is reduced through Chebyshev fitting to improve the training efficiency as well as the online inference performance.Based on the predicted trajectory of the cut-in vehicle and the responsive actions of the autonomous vehicles,two risk measurements are introduced to formulate the comprehensive interaction risk through the combination of Sigmoid function and Softmax function.Finally,the comparative analysis is performed to validate the proposed method using the naturalistic driving data.The results show that the proposed method can predict the trajectory with higher precision and effectively evaluate the risk level of a cut-in maneuver compared to the methods without considering interaction. | Xianglei Zhu Wen Hu Zejian Deng Jinwei Zhang Fengqing Hu Rui Zhou Keqiu Li Fei-Yue Wang | 2022 | IEEE/CAA Journal of Automatica Sinica2022，9，10： | 2 |
| 3 | A novel reputation computation model based on subjective logic for mobile ad hoe networks 显示文摘 | Liu Yining Li Keqiu Jin Yingwei | 2011 | Future Generation Computer Systems2011，27，： | 1 |
| 4 | An effective solution for trademark image retrieval by combining shape description and feature matching 显示文摘 | Qi Heng Li Keqiu Shen Yanming Qu Wenyu | 2010 | Pattern Recognition2010，，43： | 1 |
| 5 | Trustmechanisms in wireless sensor networks:Attack analysis andcountermeasures显示文摘 | YU Yanli LI Keqiu ZHOU Wanlei | 2012 | Network and Computer Applications2012，35，3： | 1 |
| 6 | An effective solu- tion for trademark image retrieval by combining shape description and feature matching显示文摘 | QI HENG LI KEQIU SHEN YANMING | 2010 | Pattern Recognition2010，43，6： | 1 |
| 7 | Asymmetric multi-path division communications in underwater acoustic networks with fading channels Original Research Article 显示文摘 | Junfeng Xu Keqiu Li Geyong Min | 2013 | Journal of Computer and System Sciences2013，79，2： | 1 |
| 8 | Trust Mechanisms in Wireless Sensor Networks: Attack Analysis and Countermeasures 显示文摘 | Yu Yanli Li Keqiu Zhou Wanlei | 2012 | Journal of Network and Computer Applications2012，35，3： | 1 |
| 9 | A method to improve interrupt latency in real-time OS kernels 显示文摘 | Keqiu Li | 2010 | Journal of Embedded Computing2010，4，1： | 1 |
| 10 | Seamless handoff scheme in Wi-Fi and WiMax heterogeneous networks 显示文摘 | SHI Fei LI Keqiu SHEN Yanming | 2010 | Future Generation Computer Systems2010，26，： | 1 |
| 11 | A Novel Reputation Computation Model Based on Subjective Logic for Mobile Ad Hoe Networks 显示文摘 | Liu Yining Li Keqiu Jin Yingwei | 2011 | Future Generation Computer Systems2011，27，5： | 1 |
| 12 | Reliable and energy?efficient multipath communications in underwater sensor networks显示文摘 | Junfeng Xu Keqiu Li Geyong Min | 2012 | IEEE Trans on Parallel and Distributed Systems2012，23，7： | 1 |
| 13 | An effective solution for trademark image retrieval by combining shapedescription and feature matching显示文摘 | Qi Heng Li Keqiu Shen Yanming | 2010 | Pattern Recognition2010，43，6： | 1 |
| 14 | Secure and energy-efficient data aggregation with malicious aggregator identification in wireless sensor networks显示文摘 | Hongjuan Li Keqiu Li Wenyu Qu Ivan Stojmenovic | 2013 | Future Generation Computer Systems2013，，： | 1 |
| 15 | An effective so- lution for trademark image retrieval by combining shape description and feature matching显示文摘 | Qi Heng Li Keqiu Shen Yanming | 2010 | Pattem Recognition2010，43，6： | 1 |
| 16 | Reliable and energyefficient multipath communications in underwater sensor networks显示文摘 | Xu Junfeng Li Keqiu Min Geyong | 2012 | IEEE Transactions on Parallel and Distributed Systems2012，23，7： | 1 |
| 17 | Multiple sub- hyper-spheres support vector machine for multi-class clas- sification显示文摘 | LIU SHUANG CHEN PENG LI KEQIU | 2014 | International Journal of Wavelets Multireso- lution & Information Processing2014，12，3： | 1 |
| 18 | Trust Mechanisms inWireless Sensor Networks: Attack Analysis and Countermeasures显示文摘 | Yu Yanli Li Keqiu Zhou Wanlei | 2012 | Journal of Network and Computer Applications2012，，35： | 1 |
| 19 | An Improved BPNN Prediction Method Based on Multi-Strategy Sparrow Search Algorithm显示文摘Data prediction can improve the science of decision-making by making predictions about what happens in daily life based on natural law trends.Back propagation(BP)neural network is a widely used prediction method.To reduce its probability of falling into local optimum and improve the prediction accuracy,we propose an improved BP neural network prediction method based on a multi-strategy sparrow search algorithm(MSSA).The weights and thresholds of the BP neural network are optimized using the sparrow search algorithm(SSA).Three strategies are designed to improve the SSA to enhance its optimization-seeking ability,leading to the MSSA-BP prediction model.The MSSA algorithm was tested with nine different types of benchmark functions to verify the optimization performance of the algorithm.Two different datasets were selected for comparison experiments on three groups of models.Under the same conditions,the mean absolute error(MAE),root mean square error(RMSE),andmean absolute percentage error(MAPE)of the prediction results of MSSA-BPwere significantly reduced,and the convergence speed was significantly improved.MSSA-BP can effectively improve the prediction accuracy and has certain application value. | Xiangyan Tang Dengfang Feng KeQiu Li Jingxin Liu Jinyang Song Victor S.Sheng | 2023 | Computers, Materials & Continua2023，，2： | 0 |
| 20 | MiR-125a-5p is Upregulated in Plasma of Residents from An Electronic Waste Recycling Site显示文摘The mechanism of health effects caused by organohalogen pollutants, e.g., toxins from electronic waste(e-waste), is poorly understood. We supposed that micro RNAs(mi RNAs), an important post-transcriptional regulator, could play a role in this process. In this study, fasting peripheral blood samples were collected from residents living at an e-waste site in northern China and a nearby reference population. Concentrations of e-waste related organohalogen pollutants in plasma from the exposure group were higher than the corresponding measurement in the reference group. Correspondingly, sixty mi RNAs in plasma showed > 2-fold change between the two groups in microarray analysis. Among them, mi R-125a-5p was confirmed to be upregulated by q RT-PCR and its validated targets were enriched in responses to xenobiotics and cancer related pathways. Furthermore, significant positive correlations were found between levels of mi R-125a-5p in plasma and reactive oxygen species(ROS) in polymorphonuclear neutrophil leukocytes(P < 0.05). These evidences suggested oxidative stress might be an intermediate between e-waste related POPs exposure and alteration of plasma mi RNA. | Li Ran Qiu Xinghua Yang Qiaoyun Li Keqiu Li Guang | 2016 | 生态毒理学报2016，11，2： | 0 |
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