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| 1 | Cross-Band Spectrum Prediction Based on Deep Transfer Learning显示文摘Spectrum prediction is a promising technology to infer future spectrum state by exploiting inherent patterns of historical spectrum data.In practice,for a given spectrum band of interest,when facing relatively scarce historical data,spectrum prediction based on traditional learning methods does not work well.Thus,this paper proposes a cross-band spectrum prediction model based on transfer learning.Firstly,by analysing service activities and computing the distances between various frequency points based on Dynamic Time Warping,the similarity between spectrum bands has been verified.Next,the features,which mainly affect the performance of transfer learning in the crossband spectrum prediction,are explored by leveraging transfer component analysis.Then,the effectiveness of transfer learning for the cross-band spectrum prediction has been demonstrated.Further,experimental results with real-world spectrum data demonstrate that the performance of the proposed model is better than the state-of-theart models when the historical spectrum data is limited. | Fandi Lin Jin Chen Jiachen Sun Guoru Ding Ling Yu | 2020 | China Communications2020,17,2: | 8 |
| 2 | Oxide-based cathode materials for rechargeable zinc ion batteries:Progresses and challenges显示文摘With the increasing demands for electrical energy storage technologies,rechargeable zinc ion batteries(ZIBs)have been rapidly developed in recent years owing to their high safety,low cost and high energy storage capability.The cathode is an essential part of ZIBs,which hosts zinc ions and determines the capacity,rate and cycling performance of the battery.The mainstream cathodes for ZIBs are oxidebased materials with tunnel,layer or 3 D crystal structures.In this review,we mainly focus on the latest advanced oxide-based cathode materials in ZIBs,including manganese oxides,vanadium oxides,spinel compounds,and other metal oxide based cathodes.In addition,the mechanisms of zinc storage and recent development in cathode design have been discussed in detail.Finally,current challenges and perspectives for the future research directions of oxide-based cathodes in ZIBs are presented. | Yingze Zhou Fandi Chen Hamidreza Arandiyan Peiyuan Guan Yunjian Liu Yuan Wang Chuan Zhao Danyang Wang Dewei Chu | 2021 | Journal of Energy Chemistry2021,30,6: | 4 |
| 3 | Spectrum Prediction Based on GAN and Deep Transfer Learning:A Cross-Band Data Augmentation Framework显示文摘This paper investigates the problem of data scarcity in spectrum prediction.A cognitive radio equipment may frequently switch the target frequency as the electromagnetic environment changes.The previously trained model for prediction often cannot maintain a good performance when facing small amount of historical data of the new target frequency.Moreover,the cognitive radio equipment usually implements the dynamic spectrum access in real time which means the time to recollect the data of the new task frequency band and retrain the model is very limited.To address the above issues,we develop a crossband data augmentation framework for spectrum prediction by leveraging the recent advances of generative adversarial network(GAN)and deep transfer learning.Firstly,through the similarity measurement,we pre-train a GAN model using the historical data of the frequency band that is the most similar to the target frequency band.Then,through the data augmentation by feeding the small amount of the target data into the pre-trained GAN,temporal-spectral residual network is further trained using deep transfer learning and the generated data with high similarity from GAN.Finally,experiment results demonstrate the effectiveness of the proposed framework. | Fandi Lin Jin Chen Guoru Ding Yutao Jiao Jiachen Sun Haichao Wang | 2021 | China Communications2021,18,1: | 3 |
| 4 | Generation and application of replication-competent Venus-expressing H5N1,H7N9,and H9N2 influenza A viruses显示文摘The generation and application of replication-competent influenza A virus(IAV) expressing a reporter gene represent a valuable tool to elucidate the mechanism of viral pathogenesis and establish new countermeasures to combat the threat of influenza. Here, replication-competent IAVs with a neuraminidase(NA) segment harboring a fluorescent reporter protein, Venus, were generated in the background of H5N1, H7N9, and H9N2 influenza viruses, the three subtypes of viruses with imminent pandemic potential. All three reporter viruses maintained virion morphology, replicated with similar or slightly reduced titers relative to their parental viruses, and stably expressed the fluorescent signal for at least two passages in embryonated chicken eggs. As a proof of concept, we demonstrated that these reporter viruses,used in combination with a high-content imaging system, can serve as a convenient and rapid tool for the screening of antivirals and host factors involved in the virus life cycle. Moreover, the reporter viruses demonstrated similar growth properties and tissue tropism as their parental viruses in mice, among which the H7N9 NA-Venus virus could potentially be used in ex vivo studies to better understand H7N9 pathogenesis or to develop novel therapeutics. | guangwen wang jie zhang fandi kong qibing li jinliang wang shujie ma yuhui zhao libin liang junping li nan sun lizheng guan yuan zhou chenchen zhou shanyu huang zhigao bu li jiang hualan chen chengjun li | 2018 | Science Bulletin2018,63,3: | 1 |
| 5 | The mechanism of Wnt5A and receptors-mediated canonical Wnt signaling pathway in the degeneration of ALS motor neurons显示文摘It is important to explore the influence of Wnt signaling pathway on the degeneration of motor neurons in clarifying the mechanism of amyotrophic lateral sclerosis(ALS).In this study,we used hSOD1-G93A mutant ALS transgenic mice and hSOD1-G93A mutant NSC34 cells as models to explore whether Wnt5A plays a role in the pathogenesis of ALS by binding with Wnt signaling receptors(FZD4,LRP5). | Jiang Xin Gruan Yingjun Meng Fandi Zhao Zhenhan Gao Xueshuai Wang Xuemei Chen Yanchun Zhou Fenghua Liu Jinmeng | 2021 | 解剖学杂志2021,44,S01: | 0 |
| 6 | Expression of REST and P27 in spinal cord of amyotrophic lateral sclerosis mice显示文摘Amyotrophic lateral sclerosis(ALS)is a neurodegenerative disease characterized by the progressive and fatal loss of motor neurons.RE1 silencing transcription factor(REST)is a transcriptional repressor of neuronal genes.Studies have shown that REST interacts with P21.P27 and P21 belong to homologous protein,but the role of REST and P27 in ALS has not been reported.In this study,we want to investigate the changes in the expression of REST and P27 in thespinal cord of ALS mice. | Gao Xueshuai Chen Yanchun Wang Xuemei Meng Fandi Zhao Zhenhan Wang Qing | 2021 | 解剖学杂志2021,44,S01: | 0 |
| 7 | A biomaterial-based therapy for lower limb ischemia using Sr/Si bioactive hydrogel that inhibits skeletal muscle necrosis and enhances angiogenesis显示文摘Muscle necrosis and angiogenesis are two major challenges in the treatment of lower-limb ischemic diseases.In this study,a triple-functional Sr/Si-containing bioceramic/alginate composite hydrogel with simultaneous bioactivity in enhancing angiogenesis,regulating inflammation,and inhibiting muscle necrosis was designed to treat lower-limb ischemic diseases.In particular,sodium alginate,calcium silicate and strontium carbonate were used to prepare injectable hydrogels,which was gelled within 10 min.More importantly,this composite hydrogel sustainedly releases bioactive Sr^(2+)and SiO_(3)^(2-) ions within 28 days.The biological activity of the bioactive ions released from the hydrogels was verified on HUVECs,SMCs,C2C12 and Raw 264.7 cells in vitro,and the therapeutic effect of the hydrogel was confirmed using C57BL/6 mouse model of femoral artery ligation in vivo.The results showed that the composite hydrogel stimulated angiogenesis,developed new collateral capillaries,and re-established the blood supply.In addition,the bioactive hydrogel directly promoted the expression of muscle-regulating factors(MyoG and MyoD)to protect skeletal muscle from necrosis,inhibited M1 polarization,and promoted M2 polarization of macrophages to reduce inflammation,thereby protecting skeletal muscle cells and indirectly promoting vascularization.Our results indicate that these bioceramic/alginate composite bioactive hydrogels are effective biomaterials for treating hindlimb ischemia and suggest that biomaterial-based approaches may have remarkable potential in treating ischemic diseases. | Ye Yuan Zhaowenbin Zhang Fandi Mo Chen Yang Yiren Jiao Enci Wang Yuchong Zhang Peng Lin Chengkai Hu Weiguo Fu Jiang Chang Lixin Wang | 2023 | Bioactive Materials2023,,8: | 0 |