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| 1 | Monitoring and Early Warning of New Cyber-Telecom Crime Platform Based on BERT Migration Learning显示文摘The network is a major platform for implementing new cyber-telecom crimes.Therefore,it is important to carry out monitoring and early warning research on new cyber-telecom crime platforms,which will lay the foundation for the establishment of prevention and control systems to protect citizens’property.However,the deep-learning methods applied in the monitoring and early warning of new cyber-telecom crime platforms have some apparent drawbacks.For instance,the methods suffer from data-distribution differences and tremendous manual efforts spent on data labeling.Therefore,a monitoring and early warning method for new cyber-telecom crime platforms based on the BERT migration learning model is proposed.This method first identifies the text data and their tags,and then performs migration training based on a pre-training model.Finally,the method uses the fine-tuned model to predict and classify new cyber-telecom crimes.Experimental analysis on the crime data collected by public security organizations shows that higher classification accuracy can be achieved using the proposed method,compared with the deep-learning method. | Shengli Zhou Xin Wang Zerui Yang | 2020 | China Communications2020，17，3： | 5 |
| 2 | High regional genetic differentiation of an endangered relict plant Craigia yunnanensis and implications for its conservation显示文摘Of the genus Craigia,widespread in the Tertiary,only two relict species survived to modern times.One species is now possibly extinct and the other one,Craigia yunnanensis,is severely endangered.Extensive surveys have located six C.yunnanensis populations in Yunnan province,southwest China.Using fluorescent amplified fragment length polymorphism(AFLP),the genetic diversity and population structure of these populations were examined.It was found that genetic diversity of C.yunnanensis was moderate at the species level,but low at regional and population levels.Analysis of population structure showed significant genetic differentiation between Wenshan and Dehong regions,apparently representing two geographically isolated for long time refuges.There are also clear indications of isolation between populations,which,together with anthropogenically caused decline of population size,will lead to general loss of the species genetic variation with subsequent loss of adaptive potential.To conserve the genetic integrity of C.yunnanensis,we recommend that ex-situ conservation should include representative samples from every population of the two differentiated regions(e.g.Wenshan and Dehong).The crosses between individuals originated from different regions should be avoided because of a high risk of outbreeding depression.As all the extant populations of C.yunnanensis are in unprotected areas with strong anthropogenic impact,there is no alternative to reintroduction of C.yunnanensis into suitable protected locations. | Jing Yang Zerui Gao Weibang Sun Changqin Zhang | 2016 | Plant Diversity2016，38，5： | 3 |
| 3 | Boosting the cell performance of the SiO_(x)@C anode material via rational design of a Si-valence gradient显示文摘Relieving the stress or strain associated with volume change is highly desirable for high-performance SiOx anodes in terms of stable solid electrolyte interphase(SEI)-film growth.Herein,a Si-valence gradient is optimized in SiOx composites to circumvent the large volume strain accompanied by lithium insertion/extraction.SiO_(x)@C annealed at 850℃ has a gentle Si-valence gradient along the radial direction and excellent electrochemical performances,delivering a high capacity of 506.9 mAh g^(−1) at 1.0 A g^(−1) with a high Coulombic efficiency of~99.8%over 400 cycles.Combined with the theoretical prediction,the obtained results indicate that the gentle Si-valence gradient in SiO_(x)@C is useful for suppressing plastic deformation and maintaining the inner connection integrity within the SiO_(x)@C particle.Moreover,a gentle Si-valence gradient is expected to form a stress gradient and affect the distribution of dangling bonds,resulting in local stress relief during the lithiation/delithiation process and enhanced Li-ion kinetic diffusion.Furthermore,the lowest interfacial stress variation ensures a stable SEI film at the interface and consequently increases cycling stability.Therefore,rational design of a Si-valence gradient in SiOx can provide further insights into achieving high-performance SiOx anodes with large-scale production. | Jianming Tao Zerui Yan Jiangshao Yang Jiaxin Li Yingbin Lin Zhigao Huang | 2022 | Carbon Energy2022，4，2： | 2 |
| 4 | DESIGN AND FABRICATION OF Si/SiGe PMOSFETs显示文摘Based on theoretical analysis and computer-aided simulation, optimized design principles for Si/SiGe PMOSFET are given in this paper, which include choice of gate materials,determination of germanium percentage and profile in SiGe channel, optimization of thickness of dioxide and silicon cap layer, and adjustment of threshold voltage. In the light of these principles,a SiGe PMOSFET is designed and fabricated successfully. Measurement indicates that the SiGe PMOSFET's (L=2μm) transconductance is 45 mS/mm (300K) and 92mS/mm (77K), while that is 33 mS/mm (300K) and 39mS/mm (77K) in Si PMOSFET with the same structure. | Yang Peifeng Li Jingchun Yu Qi Wang Xiangzhan Yang Mohua (Dept. of Microelectronic Science and Eng., UEST of China, Chengdu 610054)He Lin Li Kaicheng Tan KaizhouLiu Daoguang Zhang Jing Yi Qiang Fan Zerui(National Key Laboratory of Analog IC’s, Chongqing 400060) | 2002 | Journal of Electronics(China)2002，19，1： | 1 |
| 5 | Deep amended COPERT model for regional vehicle emission prediction显示文摘Dear editor,The existing methods for regional vehicle emission prediction can be roughly categorized into the classes of classical dispersion models and satellite remote sensing models.Gaussian plume models,operational street canyon models and computational fluid dynamics are the classical dispersion models. | Zhenyi XU Yu KANG Yang CAO Zerui LI | 2021 | Science China(Information Sciences)2021，64，3： | 1 |
| 6 | A networked remote sensing system for on-road vehicle emission monitoring显示文摘Vehicle emissions are a major source of urban air pollution, and therefore a real-time monitoring system can be very useful in analyzing such emission and consequently assisting the policy making process. In this work we discuss the principle and structure of three different types of remote sensing detectors, and also the key techniques to establish a networked remote sensing monitoring system. We finally conclude this paper with data analysis from some preliminary experiments. | Yu KANG Yan DING Zerui LI Yang CAO Yunbo ZHAO | 2017 | Science China(Information Sciences)2017，60，4： | 1 |
| 7 | APEC'S NEW GOAL显示文摘Post-2020 development blueprint charts course for regional economic recovery The 27th Asia-Pacific Economic Cooperation (APEC) Economic Leaders'Meeting held on November 20 via video link was significant for several reasons.This year is the target date for meeting the second objective of the APEC goals set in 1994. | Yang Zerui | 2020 | Beijing Review2020，63，49： | 0 |
| 8 | Alternative Copper-Based Single-Atom Nanozyme with Superior Multienzyme Activities and NIR-II Responsiveness to Fight against Deep Tissue Infections显示文摘Nanozymes are considered to represent a new era of antibacterial agents,while their antibacterial efficiency is limited by the increasing tissue depth of infection.To address this issue,here,we report a copper and silk fibroin(Cu-SF)complex strategy to synthesize alternative copper single-atom nanozymes(SAzymes)with atomically dispersed copper sites anchored on ultrathin 2D porous N-doped carbon nanosheets(CuN_(x)-CNS)and tunable N coordination numbers in the CuN_(x) sites(x=2 or 4).The CuN_(x)-CNS SAzymes inherently possess triple peroxidase(POD)-,catalase(CAT)-,and oxidase(OXD)-like activities,facilitating the conversion of H_(2)O_(2)and O_(2)into reactive oxygen species(ROS)through parallel POD-and OXD-like or cascaded CAT-and OXD-like reactions.Compared to CuN_(2)-CNS,tailoring the N coordination number from 2 to 4 endows the SAzyme(CuN_(4)-CNS)with higher multienzyme activities due to its superior electron structure and lower energy barrier.Meanwhile,CuN_(x)-CNS display strong absorption in the second near-infrared(NIR-II)biowindow with deeper tissue penetration,offering NIR-II-responsive enhanced ROS generation and photothermal treatment in deep tissues.The in vitro and in vivo results demonstrate that the optimal CuN_(4)-CNS can effectively inhibit multidrug-resistant bacteria and eliminate stubborn biofilms,thus exhibiting high therapeutic efficacy in both superficial skin wound and deep implant-related biofilm infections. | Jiaxiang Bai Yonghai Feng Wenming Li Zerui Cheng Jessica MRosenholm Huilin Yang Guoqing Pan Hongbo Zhang Dechun Geng | 2023 | Research2023，，3： | 0 |
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