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| 1 | Programmable time-domain digital-coding metasurface for non-linear harmonic manipulation and new wireless communication systems显示文摘Optical non-linear phenomena are typically observed in natural materials interacting with light at high intensities, and they benefit a diverse range of applications from communication to sensing. However,controlling harmonic conversion with high efficiency and flexibility remains a major issue in modern optical and radio-frequency systems. Here, we introduce a dynamic time-domain digital-coding metasurface that enables efficient manipulation of spectral harmonic distribution. By dynamically modulating the local phase of the surface reflectivity, we achieve accurate control of different harmonics in a highly programmable and dynamic fashion, enabling unusual responses, such as velocity illusion. As a relevant application, we propose and realize a novel architecture for wireless communication systems based on the time-domain digital-coding metasurface, which largely simplifies the architecture of modern communication systems, at the same time yielding excellent performance for real-time signal transmission. The presented work, from new concept to new system, opens new pathways in the application of metamaterials to practical technology. | Jie Zhao Xi Yang Jun Yan Dai Qiang Cheng Xiang Li Ning Hua Qi Jun Chen Ke Guo Dong Bai Shuo Liu Shi Jin Andrea Alù Tie Jun Cui | 2019 | National Science Review2019，6，2： | 46 |
| 2 | Anisotropic coding metamaterials and their powerful manipulation of differently polarized terahertz waves显示文摘Metamaterials based on effective media can be used to produce a number of unusual physical properties(for example,negative refraction and invisibility cloaking)because they can be tailored with effective medium parameters that do not occur in nature.Recently,the use of coding metamaterials has been suggested for the control of electromagnetic waves through the design of coding sequences using digital elements‘0’and‘1,'which possess opposite phase responses.Here we propose the concept of an anisotropic coding metamaterial in which the coding behaviors in different directions are dependent on the polarization status of the electromagnetic waves.We experimentally demonstrate an ultrathin and flexible polarization-controlled anisotropic coding metasurface that functions in the terahertz regime using specially designed coding elements.By encoding the elements with elaborately designed coding sequences(both 1-bit and 2-bit sequences),the x-and y-polarized waves can be anomalously reflected or independently diffused in three dimensions.The simulated far-field scattering patterns and near-field distributions are presented to illustrate the dual-functional performance of the encoded metasurface,and the results are consistent with the measured results.We further demonstrate the ability of the anisotropic coding metasurfaces to generate a beam splitter and realize simultaneous anomalous reflections and polarization conversions,thus providing powerful control of differently polarized electromagnetic waves.The proposed method enables versatile beam behaviors under orthogonal polarizations using a single metasurface and has the potential for use in the development of interesting terahertz devices. | Shuo Liu Tie Jun Cui Quan Xu Di Bao Liangliang Du Xiang Wan Wen Xuan Tang Chunmei Ouyang Xiao Yang Zhou Hao Yuan Hui Feng Ma Wei Xiang Jiang Jiaguang Han Weili Zhang Qiang Cheng | 2016 | Light(Science & Applications)2016，5，1： | 36 |
| 3 | Broadband diffusion of terahertz waves by multi-bit coding metasurfaces显示文摘The terahertz region is a special region of the electromagnetic spectrum that incorporates the advantages of both microwaves and infrared light waves.In the past decade,metamaterials with effective medium parameters or gradient phases have been studied to control terahertz waves and realize functional devices.Here,we present a new approach to manipulate terahertz waves by using coding metasurfaces that are composed of digital coding elements.We propose a general coding unit based on a Minkowski closed-loop particle that is capable of generating 1-bit coding(with two phase states of 0 and 180°),2-bit coding(with four phase states of 0,90°,180°,and 270°),and multi-bit coding elements in the terahertz frequencies by using different geometric scales.We show that multi-bit coding metasurfaces have strong abilities to control terahertz waves by designing-specific coding sequences.As an application,we demonstrate a new scattering strategy of terahertz waves—broadband and wide-angle diffusion—using a 2-bit coding metasurface with a special coding design and verify it by both numerical simulations and experiments.The presented method opens a new route to reducing the scattering of terahertz waves. | Li-Hua Gao Qiang Cheng Jing Yang Shao-Jie Ma Jie Zhao Shuo Liu Hai-Bing Chen Qiong He Wei-Xiang Jiang Hui-Feng Ma Qi-Ye Wen Lan-Ju Liang Biao-Bing Jin Wei-Wei Liu Lei Zhou Jian-Quan Yao Pei-Heng Wu Tie-Jun Cui | 2015 | Light(Science & Applications)2015，4，1： | 31 |
| 4 | Salvianolic acid B ameliorates depressive-like behaviors in chronic mild stress-treated mice: involvement of the neuroinflammatory pathway显示文摘瞄准:主要压抑的混乱(MDD ) 是削弱与 neurotransmitter-neuroendocrine 系统和 neuroinflammatory 回答的机能障碍联系的心理混乱。Salvianolic 酸 B (SalB ) 显示出许多药理学活动,包括反煽动性,抗氧化剂和 neuroprotective 效果。在这研究,我们检验了 SalB 是否在一个长期的温和压力(厘米) 产生了像抗抑郁剂的行动老鼠模型,并且探索了位于 SalB.Methods 的像抗抑郁剂的行动下面的机制:老鼠受到一个厘米范例 6 个星期。在最后 3 个星期内,老鼠是每天管理的 SalB (20 mg· kg −1·d−1, ip ) 或积极控制药 imipramine (20 mg· kg −1·d−1, ip ) 。像镇静剂的行为用蔗糖偏爱测试,强迫的游泳测试(FST ) ,和尾巴暂停测试(TST ) 被评估。在马头鱼尾的怪兽和外皮的 cytokines 的基因表示与 RT-PCR 被分析。血浆皮质脂酮(CORT ) 和服的 cytokines 层次是有一个 ELISA 工具包的 assayed。在大脑纸巾的神经 apoptosis 和 microglial 激活用 immunofluorescence staining.Results 被检测:SalB 或 imipramine 的管理颠倒了对待厘米的老鼠的减少的蔗糖偏爱比率,并且显著地减少了他们在 FST 和 TST 的不动时间。SalB 的管理显著地减少了支持 inflammatory cytokines IL-1β 的表示;并且 TNF-α,并且显著地增加了反煽动性的 cytokines IL-10 和 TGF-β 的表示;在对待厘米的老鼠的马头鱼尾的怪兽和外皮,并且使他们的提高的血浆 CORT 层次正常化,而 imipramine 的管理显著地没在对待厘米的老鼠的马头鱼尾的怪兽和外皮影响在支持 inflammatory 和反煽动性的 cytokines 之间的不平衡。最后, SalB 的管理显著地减少了在马头鱼尾的怪兽和外皮的导致厘米的 apoptosis 和 microglia 激活,而 imipramine 的管理没在马头鱼尾的怪兽和 cortex.Conclusion 在导致厘米的 apoptosis 和 microglia 激活上有重要效果:SalB 施加在导致厘米的老鼠的像抗抑郁剂的效果消沉建模的有势力,它与禁止被联系在马头鱼尾的怪兽和外皮的 microglia 相关的 apoptosis。 | Jin-qiang ZHANG Xiao-hui WU Yi FENG Xiao-fang XIE Yong-hua FAN Shuo YAN Qiu-ying ZHAO Cheng PENG Zi-li YOU | 2016 | Acta Pharmacologica Sinica2016，37，9： | 19 |
| 5 | Genome Characteristics and Evolution of Pseudorabies Virus Strains in Eastern China from 2017 to 2019显示文摘Since late 2011,outbreaks of pseudorabies virus(PRV)have occurred in southern China causing major economic losses to the pig industry.We previously reported that variant PRV forms and recombination in China could be the source of continued epidemics.Here,we analyzed samples from intensive pig farms in eastern China between 2017 and 2019,and sequenced the main glycoproteins(gB,gC,gD,and gE)to study the evolution characteristics of PRV.Based on the gC gene,we found that PRV variants belong to clade 2 and detected a founder effect during by the PRV epidemic.In addition,we detected inter-and intra-clade recombination;in particular,inter-clade recombination in the gB genes of strains FJ-ZXF and FJ-W2,which were recombinant with clade 1 strains.We also found specific amino-acid changes and positively selected sites,possibly associated with functional changes.This analysis of the emergence of PRV in China illustrates the need for continuous monitoring and the development of vaccines against specific variants of PRV. | Xiaofeng Zhai Wen Zhao Kemang Li Cheng Zhang Congcong Wang Shuo Su Jiyong Zhou Jing Lei Gang Xing Haifeng Sun Zhiyu Shi Jinyan Gu | 2019 | Virologica Sinica2019，34，6： | 12 |
| 6 | Biological imaging without autofluorescence in the second near-infrared region显示文摘Fluorescence imaging is capable of acquiring anatomical and functional infor- mation with high spatial and temporal resolution. This imaging technique has been indispensable in biological research and disease detection/diagnosis. Imaging in the visible and to a lesser degree, in the near-infrared (NIR) regions below 900 nm, suffers from autofluorescence arising from endogenous fluorescent molecules in biological tissues. This autofluorescence interferes with fluorescent molecules of interest, causing a high background and low detection sensitivity. Here, we report that fluorescence imaging in the 1,500-1,700-nm region (termed "NIR-IIb") under 808-nm excitation results in nearly zero tissue autofluorescence, allowing for background-free imaging of fluorescent species in otherwise notoriously autofluorescent biological tissues, including liver. Imaging of the intrinsic fluorescence of individual fluorophores, such as a single carbon nanotube, can be readily achieved with high sensitivity and without autofluorescence background in mouse liver within the 1,500-1,700-nm wavelength region. | Shuo Diao Guosong Hong Alexander L. Antaris Jeffrey L. Blackbum Kai Cheng Zhen Cheng Hongjie Dai | 2015 | Nano Research2015，8，9： | 12 |
| 7 | Uncoupled PID Control of Coupled Multi-Agent Nonlinear Uncertain Systems显示文摘在这份报纸, PID ( proportional-integral-derivative )控制器将被设计为联合多代理人系统的一个班解决追踪的问题,在每个代理人被秒顺序描述的地方高度维的非线性的不明确的动态系统,它仅仅存取它的自己的追踪的错误信息并且不需要与其它一起交流。这份报纸将显示出那 3-dimensional 歧管能基于系统的 Lipschitz 常数的信息被构造非线性的动力学,以便每当每个 PID 控制器的三个参数被选择从时歧管,整个多代理人系统能全球性被稳定,每个代理人的追踪的错误 asymptotically 来临到零。为联合一阶的多代理人的一个类非线性的不明确的系统,一个 PI 控制器将被设计稳定整个系统。 | YUAN Shuo ZHAO Cheng GUO Lei | 2018 | Journal of Systems Science & Complexity2018，31，1： | 9 |
| 8 | Spindle Thermal Error Optimization Modeling of a Five-axis Machine Tool显示文摘Aiming at the problem of low machining accuracy and uncontrollable thermal errors of NC machine tools, spindle thermal error measurement, modeling and compensation of a two turntable five-axis machine tool are researched. Measurement experiment of heat sources and thermal errors are carried out, and GRA(grey relational analysis) method is introduced into the selection of temperature variables used for thermal error modeling. In order to analyze the influence of different heat sources on spindle thermal errors, an ANN(artificial neural network) model is presented, and ABC(artificial bee colony) algorithm is introduced to train the link weights of ANN, a new ABCNN(Artificial bee colony-based neural network) modeling method is proposed and used in the prediction of spindle thermal errors. In order to test the prediction performance of ABC-NN model, an experiment system is developed, the prediction results of LSR(least squares regression), ANN and ABC-NN are compared with the measurement results of spindle thermal errors. Experiment results show that the prediction accuracy of ABC-NN model is higher than LSR and ANN, and the residual error is smaller than 3 lm, the new modeling method is feasible. The proposed research provides instruction to compensate thermal errors and improve machining accuracy of NC machine tools. | Qianjian GUO Shuo FAN Rufeng XU Xiang CHENG Guoyong ZHAO Jianguo YANG | 2017 | Chinese Journal of Mechanical Engineering2017，30，3： | 6 |
| 9 | A new distinct geminivirus causes soybean stay-green disease显示文摘Dear Editor,Plant viruses make up almost half of the plant disease-causing pathogens,affecting crop yields and the global economy(Savary et al.,2019).Soybean(Glycine max)is one of the most valuable legume crops in the world,supplying 25%of the global edible oil and two-thirds of the global concentrated protein for livestock feeding.Recently,the outbreak of soybean stay-green syndrome with delayed leaf senescence(stay-green),flat pods,and increased number of abnormal seeds has swept the soybean production in the Huang-Huai-Hai region of China,resulting in huge yield losses(Xu et al.,2019).This disease has become an epidemic and prominent problem in soybean production and is still expanding its geography,including North America,posing a serious threat to soybean production(Harbach et al.,2016;Zhang et al.,2016;Li et al.,2019).However,the cause of soybean stay-green syndrome remains obscure. | Ruixiang Cheng Ruoxin Mei Rong Yan Hongyu Chen Dan Miao Lina Cai Jiayi Fan Gairu Li Ran Xu Weiguo Lu Yu Gao Wenwu Ye Shuo Su Tianfu Han Junyi Gai Yuanchao Wang Xiaorong Tao Yi Xu | 2022 | Molecular Plant2022，15，6： | 6 |
| 10 | Information theory of metasurfaces显示文摘We propose a theory to characterize the information and information processing abilities of metasurfaces,and demonstrate the relation between the information of the metasurface and its radiation pattern in the far-field region.By incorporating a general aperturemodel with uncertainty relation in L2-space,we propose a theory to predict the upper bound of information contained in the radiation pattern of a metasurface,and reveal the theoretical upper limit of orthogonal radiation states.Theproposed theory also provides guidance for inverse design of the metasurface with respect to given functionalities.Through investigation of the information of disordered-phase modulated metasurfaces,we find the information invariance(1?γ,whereγis Euler’s constant)of chaotic radiation patterns.That is to say,the information of the disordered-phase modulated radiation patterns is always equal to 1?γ,regardless of variations in size,the number of elements and the phase pattern of metasurface.This value might be the lower bound of radiation-pattern information of the metasurface,which can provide a theoretical limit for information modulation applications,including computational imaging,stealth technologies and wireless communications. | Haotian Wu Guo Dong Bai Shuo Liu Lianlin Li Xiang Wan Qiang Cheng Tie Jun Cui | 2020 | National Science Review2020，7，3： | 5 |
| 11 | A new species of the genus Crocidura from China based on molecular and morphological data(Eulipotyphla: Soricidae)显示文摘A new species of white-toothed shrew,Crocidura anhuiensis Zhang,Zhang&Li,sp.nov.is described from Mount Huang,China.Genetic sequence(mt DNA Cyt b gene)and morphological(external and skull)data are used to distinguish this newly discovered species.The phylogenetic analysis shows that the materials of this work are monophyletic and allied to C.attenuata by the uncorrected genetic distance 4.9–5.1%,which suggests a species-level divergence.Morphologically,the materials are different from C.attenuata by presenting a greater proportion of tail-to-body ratio and the presence of an obvious tooth root in the mandible.Based on those data,the unnamed species is described as a new species which is currently known only from the Wild Monkey Valley,Mount Huang,Anhui Province,China. | Heng Zhang Guiyou Wu Yanqing Wu Jianfei Yao Shuo You Chencheng Wang Feng Cheng Jingjing Chen Mingxia Tang Chunlin Li Baowei Zhang | 2019 | Zoological Systematics2019，44，4： | 5 |
| 12 | Questions about NgAgo显示文摘 | Shawn Burgess Linzhao Cheng Feng Gu Zhiwei Huang Shuo Lin Jinsong Li Wei Li Wei Qin Yujie Sun Zhou Songyang Wensheng Wei Qiang Wu Haoyi Wang Xiaoqun Wang Jing-Wei Xiong Jianzhong Xi Hui Yang Bin Zhou Bo Zhang Junjiu Huang | 2016 | Protein & Cell2016，7，12： | 5 |
| 13 | Tropoelastin improves adhesion and migration of intra-articular injected infrapatellar fat pad MSCs and reduces osteoarthritis progression显示文摘Intra-articular injection of mesenchymal stem cells(MSCs)is a promising strategy for osteoarthritis(OA)treatment.However,more and more studies reveal that the injected MSCs have poor adhesion,migration,and survival in the joint cavity.A recent study shows that tropoelastin(TE)regulates adhesion,proliferation and phenotypic maintenance of MSCs as a soluble additive,indicating that TE could promote MSCs-homing in regenerative medicine.In this study,we used TE as injection medium,and compared it with classic media in MSCs intra-articular injection such as normal saline(NS),hyaluronic acid(HA),and platelet-rich plasma(PRP).We found that TE could effectively improve adhesion,migration,chondrogenic differentiation of infrapatellar fat pad MSCs(IPFP-MSCs)and enhance matrix synthesis of osteoarthritic chondrocytes(OACs)in indirect-coculture system.Moreover,TE could significantly enhance IPFP-MSCs adhesion via activation of integrin β1,ERK1/2 and vinculin(VCL)in vitro.In addition,intra-articular injection of TE-IPFP MSCs suspension resulted in a short-term increase in survival rate of IPFP-MSCs and better histology scores of rat joint tissues.Inhibition of integrin β1 or ERK1/2 attenuated the protective effect of TE-IPFP MSCs suspension in vivo.In conclusion,TE promotes performance of IPFP-MSCs and protects knee cartilage from damage in OA through enhancement of cell adhesion and activation of integrin β1/ERK/VCL pathway.Our findings may provide new insights in MSCs intra-articular injection for OA treatment. | Junjun Yang Xin Wang Yahan Fan Xiongbo Song Jiangyi Wu Zhenlan Fu Tao Li Yang Huang ZheXiong Tang Shuo Meng Na Liu Jiajia Chen Pingju Liu Liu Yang Xiaoyuan Gong Cheng Chen | 2022 | Bioactive Materials2022，7，4： | 4 |
| 14 | An Aware-Scheduling Security Architecture with Priority-Equal Multi-Controller for SDN显示文摘Current SDN controllers suffer from a series of potential attacks. For example, malicious flow rules may lead to system disorder by introducing unexpected flow entries. In this paper, we propose Mcad-SA, an aware decision-making security architecture with multiple controllers, which could coordinate heterogeneous controllers internally as a 'big' controller. This architecture includes an additional plane, the scheduling plane, which consists of transponder, sensor, decider and scheduler. Meanwhile it achieves the functions of communicating, supervising and scheduling between data and control plane. In this framework, we adopt the vote results from the majority of controllers to determine valid flow rules distributed to switches. Besides, an aware dynamic scheduling(ADS) mechanism is devised in scheduler to intensify security of Mcad-SA further. Combined with perception, ADS takes advantage of heterogeneity and redundancy of controllers to enable the control plane operate in a dynamic, reliable and unsteady state, which results in significant difficulty of probing systems and executing attacks. Simulation results demonstrate the proposed methods indicate better security resilience over traditional architectures as they have lower failure probability when facing attacks. | Chao Qi Jiangxing Wu Guozhen Cheng Jianjian Ai Shuo Zhao | 2017 | China Communications2017，14，9： | 4 |
| 15 | Protective Efficacy of Inactivated Vaccine against SARS-CoV-2 Infection in Mice and Non-Human Primates显示文摘The ongoing coronavirus disease 2019(COVID-19)pandemic caused more than 96 million infections and over 2 million deaths worldwide so far.However,there is no approved vaccine available for severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),the disease causative agent.Vaccine is the most effective approach to eradicate a pathogen.The tests of safety and efficacy in animals are pivotal for developing a vaccine and before the vaccine is applied to human populations.Here we evaluated the safety,immunogenicity,and efficacy of an inactivated vaccine based on the whole viral particles in human ACE2 transgenic mouse and in non-human primates.Our data showed that the inactivated vaccine successfully induced SARS-CoV-2-specific neutralizing antibodies in mice and non-human primates,and subsequently provided partial(in low dose)or full(in high dose)protection of challenge in the tested animals.In addition,passive serum transferred from vaccine-immunized mice could also provide full protection from SARS-CoV-2 infection in mice.These results warranted positive outcomes in future clinical trials in humans. | Yan-Feng Yao Ze-Jun Wang Ren-Di Jiang Xue Hu Hua-Jun Zhang Yi-Wu Zhou Ge Gao Ying Chen Yun Peng Mei-Qin Liu Ya-Nan Zhang Juan Min Jia Lu Xiao-Xiao Gao Jing Guo Cheng Peng Xu-Rui Shen Qian Li Kai Zhao Lian Yang Xin Wan Bo Zhang Wen-Hui Wang Jia Wu Peng Zhou Xing-Lou Yang Shuo Shen Chao Shan Zhi-Ming Yuan Zheng-Li Shi | 2021 | Virologica Sinica2021，36，5： | 4 |
| 16 | Cancer-associated adipocyte-derived G-CSF promotes breast cancer malignancy via Stat3 signaling显示文摘Adipocyte is the most predominant cell type in the tumor microenvironment of breast cancer and plays a pivotal role in cancer progression,yet the underlying mechanisms and functional mediators remain elusive.We isolated primary preadipocytes from mammary fat pads of human breast cancer patients and generated mature adipocytes and cancer-associated adipocytes(CAAs)in vitro.The CAAs exhibited significantly different gene expression profiles as assessed by transcriptome sequencing.One of the highly expressed genes in CAAs is granulocyte colony-stimulating factor(G-CSF).Treatment with recombinant human G-CSF protein or stable expression of human G-CSF in triple-negative breast cancer(TNBC)cell lines enhanced epithelial–mesenchymal transition,migration,and invasion of cancer cells,by activating Stat3.Accordantly,targeting G-CSF/Stat3 signaling with G-CSF-neutralizing antibody,a chemical inhibitor,or siRNAs for Stat3 could all abrogate CAA-or G-CSF-induced migration and invasion of breast cancer cells.The pro-invasive genes MMP2 and MMP9 were identified as target genes of G-CSF in TNBC cells.Furthermore,in human breast cancer tissues,elevated G-CSF expression in adipocytes is well correlated with activated Stat3 signal in cancer cells.Together,our results suggest a novel strategy to intervene with invasive breast cancers by targeting CAA-derived G-CSF. | Li Liu Yudong Wu Cheng Zhang Chong Zhou Yining Li Yi Zeng Chunbo Zhang Rong Li Daya Luo Lieliang Wang Long Zhang Shuo Tu Huan Deng Shiwen Luo Ye-Guang Chen Xiangyang Xiong Xiaohua Yan | 2020 | Journal of Molecular Cell Biology2020，12，9： | 4 |
| 17 | The complete reference genome for grapevine (Vitis vinifera L.) genetics and breeding显示文摘Grapevine is one of the most economically important crops worldwide.However,the previous versions of the grapevine reference genome tipically consist of thousands of fragments with missing centromeres and telomeres,limiting the accessibility of the repetitive sequences,the centromeric and telomeric regions,and the study of inheritance of important agronomic traits in these regions.Here,we assembled a telomere-to-telomere(T2T)gap-free reference genome for the cultivar PN40024 using PacBio HiFi long reads.The T2T reference genome(PN_T2T)is 69 Mb longer with 9018 more genes identified than the 12X.v0 version.We annotated 67%repetitive sequences,19 centromeres and 36 telomeres,and incorporated gene annotations of previous versions into the PN_T2T assembly.We detected a total of 377 gene clusters,which showed associations with complex traits,such as aroma and disease resistance.Even though PN40024 derives from nine generations of selfing,we still found nine genomic hotspots of heterozygous sites associated with biological processes,such as the oxidation–reduction process and protein phosphorylation.The fully annotated complete reference genome therefore constitutes an important resource for grapevine genetic studies and breeding programs. | Xiaoya Shi Shuo Cao Xu Wang Siyang Huang Yue Wang Zhongjie Liu Wenwen Liu Xiangpeng Leng Yanling Peng Nan Wang Yiwen Wang Zhiyao Ma Xiaodong Xu Fan Zhang Hui Xue Haixia Zhong Yi Wang Kekun Zhang Amandine Velt Komlan Avia Daniela Holtgräwe Jérôme Grimplet JoséTomás Matus Doreen Ware Xinyu Wu Haibo Wang Chonghuai Liu Yuling Fang Camille Rustenholz Zongming Cheng Hua Xiao Yongfeng Zhou | 2023 | Horticulture Research2023，10，5： | 3 |
| 18 | 智能无人自主系统发展趋势(英文)显示文摘智能无人自主系统是人工智能的重要应用之一,其发展可大大推动人工智能技术的创新。本文通过其主要成就介绍了智能无人自主系统的发展趋势。并且,本文将相关技术分成了7个领域,包括人工智能技术、无人车、无人机、服务机器人、空间机器人、海洋机器人和无人车间/智能工厂。本文对每个领域的发展趋势进行了介绍。 | Tao ZHANG Qing LI Chang-shui ZHANG Hua-wei LIANG Ping LI Tian-miao WANG Shuo LI Yun-long ZHU Cheng WU | 2017 | Frontiers of Information Technology & Electronic Engineering2017，18，1： | 3 |
| 19 | Stability and bifurcation control of a neuron system under a novel fractional-order PD controller显示文摘In this paper, we address the problem of bifurcation control for a delayed neuron system. By introducing a new fractional-order Proportional-Derivative(PD) feedback controller, this paper aims to control the stability and Hopf bifurcation through adjusting the control gain parameters. The order chosen in PD controller is different with that of the integer-order neuron system. Sufficient conditions for guaranteeing the stability and generating Hopf bifurcation are constructed for the controlled neuron system. Finally,numerical simulation results are illustrated to verify our theoretical derivations and the relationships between the onset of the Hopf bifurcation and the gain parameters are obtained. | SHI Shuo XIAO Min RONG LiNa ZHENG WeiXing TAO BinBin CHENG ZunShui XU FengYu | 2019 | Science China(Technological Sciences)2019，62，12： | 3 |
| 20 | Octupole corner state in a three-dimensional topological circuit显示文摘Higher-order topological insulators(HOTIs)represent a new family of topological materials featuring quantized bulk polarizations and zero-dimensional corner states.In recent years,zero-dimensional corner states have been demonstrated in two-dimensional systems in the form of quadrupole modes or dipole modes.Due to the challenges in designing and constructing three-dimensional systems,octupole corner modes in 3D have not been observed.In this work,we experimentally investigate octupole topological phases in a three-dimensional electrical circuit,which can be viewed as a cubic lattice version of the Hofstadter model with aπ-flux threading each plaquette.We experimentally observe in our higher-order topological circuit a 0D corner state manifested as a localized impedance peak.The observed corner state in the electrical circuit is induced by the octupole moment of the bulk circuit and is topologically protected by anticommuting spatial symmetries of the circuit lattice.Our work provides a platform for investigating higher-order topological effects in three-dimensional electrical circuits. | Shuo Liu Shaojie Ma Qian Zhang Lei Zhang Cheng Yang Oubo You Wenlong Gao Yuanjiang Xiang Tie Jun Cui Shuang Zhang | 2020 | Light(Science & Applications)2020，9，1： | 3 |
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