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| 1 | A deep-bodied ginglymodian fish from the Middle Triassic of eastern Yunnan Province,China,and the phylogeny of lower neopterygians显示文摘The Ginglymodi are a group of ray-finned fishes that make up one of three major subdivisions of the infraclass Neopterygii.Ex- tant ginglymodians are represented by gars,which inhabit freshwater environments of North and Central America and Cuba.Here, we report the discovery of well-preserved fossils of a new ginglymodian,Kyphosichthys grandei gen.et sp.nov.,from the Middle Triassic(Anisian)marine deposits(Guanling Formation)in Luoping,eastern Yunnan Province,China.The discovery documents the first known fossil record of highly deep-bodied ginglymodians,adding new information on the early morphological diversity of this group.The studies of functional morphology of extant deep-bodied fishes indicate that Kyphosichthys is not a fast swim- mer but has a good performance in precise maneuvering,representing a morphological adaptation to structurally complex habitats (e.g.thick macrophyte beds,rocky areas,or coral reefs),which differs from the other members of this group.A cladistic analysis with the new fish taxon included supports the hypothesis that the Ginglymodi are more closely related to the Halecomorphi than to the Teleostei.Represented by Felberia,Kyphosichthys,and Dapedium,a highly deep and short fish body type has inde- pendently evolved at least three times in the stem-group neopterygians,ginglymodians,and basal teleosts within the lower neop- terygians of the Triassic. | XU GuangHui WU FeiXiang | 2012 | Chinese Science Bulletin2012，57，1： | 7 |
| 2 | New species of Saurichthys(Actinopterygii:Saurichthyidae)from Middle Triassic(Anisian)of Yunnan Province,China显示文摘Saurichthys dawaziensis sp。nov,从 Gejiu 形成的第三个成员(中间的 Anisian 三叠纪) 在 Luoping 的附近,云南省,一对媒介小 -- 大小的 saurichthyid 鱼。它被与一个分支在楔形的帕拉和上颚上渗透感觉运河在的传出假鳃的动脉描绘尖。新种类是在没有骨化的脊骨,有一个相对狭窄的眼窝后部的区域,短 preopercular,巩膜戒指的单个骨化,在骨盆的鳍之间的小血液的拱门和肛门鳍比更低的三叠纪的种类导出的更多,并且当 quadratojugal 不在时。它是比在在神经拱门在 prae-zygapophyses 和 post-zygapophyses 的奇鳍,和存在有 fringing fulcra 和众多的片断的中间、上面的三叠纪的 Saurichthys 更原始的。与脊椎的列和类的奇鳍有关的一些解剖变化也被讨论。 | WU Feixiang SUN Yuanlin HAO Weicheng JIANG Dayong XU Guanghui SUN Zuoyu Andrea TINTORI | 2009 | Acta Geologica Sinica(English Edition)2009，83，3： | 5 |
| 3 | Single color image super-resolution using sparse representation and color constraint显示文摘Color image super-resolution reconstruction based on the sparse representation model usually adopts the regularization norm(e.g.,L1 or L2).These methods have limited ability to keep image texture detail to some extent and are easy to cause the problem of blurring details and color artifacts in color reconstructed images.This paper presents a color super-resolution reconstruction method combining the L2/3 sparse regularization model with color channel constraints.The method converts the low-resolution color image from RGB to YCbCr.The L2/3 sparse regularization model is designed to reconstruct the brightness channel of the input low-resolution color image.Then the color channel-constraint method is adopted to remove artifacts of the reconstructed highresolution image.The method not only ensures the reconstruction quality of the color image details,but also improves the removal ability of color artifacts.The experimental results on natural images validate that our method has improved both subjective and objective evaluation. | XU Zhigang MA Qiang YUAN Feixiang | 2020 | Journal of Systems Engineering and Electronics2020，31，2： | 2 |
| 4 | Adaptive Controller Placement in Software Defined Wireless Networks显示文摘Controller placement problem(CPP)is a critical issue in software defined wireless networks(SDWN).Due to the limited power of wireless devices,CPP is facing the challenge of energy efficiency in SDWN.Nevertheless,the related research on CPP in SDWN hasn’t modeled the energy consumption of controllers so far.To prolong the lifetime of SDWN and improve the practicability of research,we rebuilt a CPP model considering the minimal transmitted power of controllers.An adaptive controller placement algorithm(ACPA)is proposed with the following two stages.First,data field method is adopted to determine sub-networks for different network topologies.Second,for each sub-network we adopt an exhaustive method to find the optimal location which meets the minimal average transmitted power to place controller.Compared with the other algorithms,the effectiveness and efficiency of the proposed scheme are validated through simulation. | Feixiang Li Xiaobin Xu Xiao Han Shengxin Gao Yupeng Wang | 2019 | China Communications2019，16，11： | 1 |
| 5 | High-fidelity,low-latency polarization quantum state transmissions over a hollow-core conjoined-tube fiber at around 800 nm显示文摘Hollow-core fiber(HCF)promises to unify air-borne light propagation and non-line-of-sight transmission,thus holding great potential for versatile photonics-based quantum information applications.The early version of HCF based on photonic-bandgap guidance has not proven itself a reliable quantum channel because of the poor modal purity in both spatial and polarization domains,as well as significant difficulty in fabrication when the wavelength shifts to the visible region.In this work,based on the polarization degree of freedom,we demonstrate high-fidelity(∼0.98)single-photon transmission and distribution of entangled photons over a 36.4 m hollow-core conjoined-tube fiber(CTF)by using commercial silicon single-photon avalanche photodiodes.Our CTF realizes the combined merits of low loss,high spatial modal purity,low polarization degradation,and low chromatic dispersion.We also demonstrate single-photon low-latency(∼99.96%speed of light in vacuum)transmission,paving the way for extensive uses of HCF links in versatile photonics-based quantum information processing. | Xinyu Chen Wei Ding Ying-Ying Wang Shou-Fei Gao Feixiang Xu Huichao Xu Yi-Feng Hong Yi-Zhi Sun Pu Wang Yan-Qing Lu Lijian Zhang | 2021 | Photonics Research2021，9，4： | 1 |
| 6 | Adenoviral vector mediated-expression of caspase-3 siRNA on apoptosis induced by lipopolysaccharide显示文摘Objective: To construct the recombinant adenovirus expressing small RNA of rats caspase-3 and observe the down-regulation effect of caspase-3 in neurons induced by lipopolysaccharide(LPS) in vitro. Methods: pShuttleH1-siCas3 containing Oligo DNA of the targeting sequences and pEGFPC1-Cas3 containing caspase-3 and EGFP sequences were constructed respectively.pShuttleH1-siCas3 and pEGFPC1-Cas3 were co-transfected to the 293 cells by liposomes to determine interfering efficacy by flow cytometry. pShuttleH1-siCas3 was linearized and transformed into E. coli BJ5183 cells containing backbone plasmid pAdEasy-1. The recombinant plasmid was transfected into 293 cells to package the adenovirus Ad-siCas3. The titers of adenovirus were determined by the specific 50% tissue culture infection dosage method. After virus infected the cultured hippocampus neurons, LPS-induced apoptosis and caspase-3 mRNA expression were observed. Results: It was identified that the sequence of target gene was correctly inserted into the genome of virus.The expression of green fluorescence protein was reduced by pShuttleH1-siCas3 in 293 cells. The titer of recombinant adenovirus was 1.06×1010 pfu/ml. After virus infection, caspase-3 mRNA was greatly reduced and neurons apoptosis was suppressed. Conclusion: The recombinant adenovirus expressing rats caspase-3 siRNA were successfully constructed, which may probably be further used in pain therapy by its anti-apoptosis effect. | Wu Feixiang Yu Weifeng Yuan Yang Miao Xuerong Xu Xuewu Huang Shengdong Sun Yuming | 2009 | Journal of Medical Colleges of PLA(China)2009，24，5： | 1 |
| 7 | Energy consumption prediction model of typical buildings in hot summer and cold winter zone of China显示文摘To overcome the shortcomings of the energyconsumption prediction models in the application during thedesign stage, a quick prediction model for energy consumptionis proposed based on the decoupling method. Taking typicalresidential and office buildings in hot summer and cold winterzones as research objects, the influence factors on buildingenergy consumption are classified into intrinsic factors andoperational factors on the basis of the heat transfer principle.Then, using the intrinsic factors as the fundamental variablesand operational factors as the modified variables, the quickprediction model for the buildings in typical cold and hot zonesis proposed based on the decoupling method and the accuracyof the proposed model is verified. The results show thatcompared to the simulation results of EnergyPlus, the relativeerror of the prediction model is less than 1.5% ; comparedwith the real operating data of the building, the relative erroris 13.14% in 2011 and 8.56% in 2012 due to the fact that thecoincidence factor becomes larger than the design value about16% in 2011 and 13% in 2012. The finding reveals that theproposed model has the advantages of rapid calculationcompared with EnergyPlus and Design Builder when predictingbuilding energy consumption in building designs. The energyconsumption prediction model is of great practical value inoptimal operation and building designs. | Xu Jianqun Zhang Fang Chen Feixiang Huang Xijun Sun Jian | 2017 | Journal of Southeast University(English Edition)2017，33，3： | 1 |
| 8 | Fixation of hybrid sterility genes and favorable alleles of key yield-related genes with dominance contribute to the high yield of the Yongyou series of intersubspecific hybrid rice显示文摘In rice,the Yongyou series of Xian-Geng intersubspecific hybrids have excellent production performance,as shown by their extremely high yield.However,the mechanisms underlying the success of these rice hybrids are unclear.In this study,three F2 populations are generated from three Yongyou hybrids to determine the genetic basis of the extremely high yield of intersubspecific hybrids.Genome constitution analysis reveals that the female and male parental lines belong to the Geng and Xian subspecies,respectively,although introgression of 20%of the Xian ancestry and 14%of the Geng ancestry are observed.Twenty-five percent of the hybrid genomes carries homozygous Xian or Geng fragments,which harbors hybrid sterility genes such as Sd,Sc,f5,and q S12 and favorable alleles of key yield-related genes,including NAL1,Ghd7,and Ghd8.None of the parents carries the S5+killer of the S5 killer-protector system.Compatible allele combinations of hybrid sterility genes ensure the fertility of these intersubspecific hybrids and overcome the bottleneck in applying intersubspecific hybrids.Additive effects of favorable alleles of yield-related genes fixed in both parents enhances midparent values.Many QTLs for yield and its key component spikelets per panicle shows dominance and the net positive dominant effects lead to heterosis.These factors result in an extremely high yield of the hybrids.These findings will aid in the development of new intersubspecific rice hybrids with diverse genetic backgrounds. | Pengfei Wang Feixiang Qi Honglin Yao Xingbing Xu Wenjun Li Jianghu Meng Qinglu Zhang Weibo Xie Yongzhong Xing | 2022 | Journal of Genetics and Genomics2022，49，5： | 1 |
| 9 | Pilot study on jetting pre-oxidation fluidized bed gasification adapting to caking coal显示文摘 | Zhang Juwei Zhao Zhigang Zhang Guangyi Zeng Xi Zhao Feixiang Dong Li Xu Guangwen | | 0，，： | 1 |
| 10 | Boosting reversible anionic redox reaction with Li/Cu dual honeycomb centers显示文摘The anionic redox reaction(ARR)is a promising charge contributor to improve the reversible capacity of layeredoxide cathodes for Na-ion batteries;however,some practical bottlenecks still need to be eliminated,including a low capacity retention,large voltage hysteresis,and low rate capability.Herein,we proposed a high-Na content honeycomb-ordered cathode,P2–Na_(5/6)[Li_(1/6)Cu_(1/6)Mn_(2/3)]O_(2)(P2-NLCMO),with combined cationic/anionic redox.Neutron powder diffraction and X-ray diffraction of P2-NLCMO suggested P2-type stacking with rarely found P6322 symmetry.In addition,advanced spectroscopy techniques and density functional theory calculations confirmed the synergistic stabilizing relationship between the Li/Cu dual honeycomb centers,achieving fully active Cu^(3+)/Cu^(2+) redox and stabilized ARR with interactively suppressed local distortion.With a meticulously regulated charge/discharge protocol,both the cycling and rate capability of P2-NLCMO were significantly. | Xiaohui Rong Dongdong Xiao Qinghao Li Yaoshen Niu Feixiang Ding Xueyan Hou Qiyu Wang Juping Xu Chenglong Zhao Dong Zhou Ruijuan Xiao Xiqian Yu Wen Yin Lin Gu Hong Li Xuejie Huang Liquan Chen Yong-Sheng Hu | 2023 | eScience2023，3，5： | 0 |
| 11 | An enhanced spectral diversity coregistration method for dualpolarimetric Sentinel-1A/B TOPS data显示文摘Sentinel-1A/B data are crucial for retrieving numerical information about surface phenomena and processes.Coregistration of terrain observation by progressive scans(TOPS)data is a critical step in its application.TOPS data must be fundamentally co-registered with an accuracy of 0.001 pixels.However,various decorrelation factors due to natural vegetation and seasonal effects affect the coregistration accuracy of TOPS data.This paper proposed an enhanced spectral diversity coregistration method for dual-polarimetric(PolESD)Sentinel-1A/B TOPS data.The PolESD method suppresses speckle noise based on a unified non-local framework in dual-pol Synthetic Aperture Radar(SAR),and extracts the phase of the optimal polarization channel from the denoised polarimetric interferometric coherency matrix.Compared with the traditional ESD method developed for single-polarization data,the PolESD method can obtain more accurate coherence and phase and get more pixels for azimuth-offset estimation.In bare areas covered with low vegetation,the number of pixels selected by PolESD is more than the Boxcar method.It can also correct misregistration more effectively and eliminate phase jumps in the burst edge.Therefore,PolESD will help improve the application of TOPS data in low-coherence scenarios. | Nan Fang Xingjun Luo Peng Shen Lei Xie Guoming Liu Feixiang Wei Kun Jiang Wenbin Xu | 2023 | Geodesy and Geodynamics2023，14，5： | 0 |
| 12 | Monsoon boosted radiation of the endemic East Asian carps显示文摘Major historical events often trigger the rapid flourishing of a few lineages,which in turn shape established biodiversity patterns.How did this process occur and develop?This study provides a window into this issue.The endemic East Asian carps(EEAC)dominated the ichthyofauna of East Asia and exhibited a high degree of adaptation to monsoonal river-lake ecosystems.A series of evidence,including ecogeography,phylogenetics,and macroevolution,suggests that the EEAC is a lineage that arose with the East Asian monsoon and thrived intimately with subsequent monsoon activities.We further deduce the evolution of the EEAC and find that a range of historical events in the monsoon setting(e.g.,marine transgression and regression and glacial-interglacial cycle)have further reshaped the distribution patterns of EEAC’s members.Comparative genomics analyses reveal that introgressions during the initial period of EEAC radiation and innovations in the regulation of the brain and nervous system may have aided their adaptation to river-lake ecosystems in a monsoon setting,which boosted radiation.Overall,this study strengthens knowledge of the evolutionary patterns of freshwater fishes in East Asia and provides a model case for understanding the impact of major historical events on the evolution of biota. | Chenguang Feng Kun Wang Wenjie Xu Liandong Yang Kunyuan Wanghe Ning Sun Baosheng Wu Feixiang Wu Lei Yang Qiang Qiu Xiaoni Gan Yiyu Chen Shunping He | 2023 | Science China(Life Sciences)2023，66，3： | 0 |
| 13 | Direct characterization of coherence of quantum detectors by sequential measurements显示文摘The quantum properties of quantum measurements are indispensable resources in quantum information processing and have drawn extensive research interest.The conventional approach to revealing quantum properties relies on the reconstruction of entire measurement operators by quantum detector tomography.However,many specific properties can be determined by a part of the matrix components of the measurement operators,which makes it possible to simplify the characterization process.We propose a general framework to directly obtain individual matrix elements of the measurement operators by sequentially measuring two noncompatible observables.This method allows us to circumvent the complete tomography of the quantum measurement and extract the required information.We experimentally implement this scheme to monitor the coherent evolution of a general quantum measurement by determining the off-diagonal matrix elements.The investigation of the measurement precision indicates the good feasibility of our protocol for arbitrary quantum measurements.Our results pave the way for revealing the quantum properties of quantum measurements by selectively determining the matrix components of the measurement operators. | Liang Xu Huichao Xu Jie Xie Hui Li Lin Zhou Feixiang Xu Lijian Zhang | 2021 | Advanced Photonics2021，3，6： | 0 |
| 14 | The value of ultrasound elastography in differential diagnosisof superficial lymph nodes显示文摘The study evaluated the value of ultrasound elastography in differentiating the benign and malignant superficial lymph nodes.A total of 112 subjects,including 82 patients with enlarged lymph nodes and 30 healthy volunteers,were recruited.All the subjects were examined by B-mode ultrasonography,power Doppler ultrasonogra-phy and elastography.Most of the patients were histo-pathologically confirmed by needle aspiration cytology and some patients were diagnosed by clinical data combined with follow-upfindings.The sensitivity,speci-ficity and accuracy of B-mode ultrasonography were 59.8%,76.5%and 67.1%,those of the bloodflow classification by power Doppler ultrasonography 77.0%,82.3%and 79.4%and those of elastographic classification 74.7%,97.1%and 84.5%,respectively.The elasticity of the lymph nodes was quantitatively measured and defined as stiffness value.When the stiffness value of 2.395 was taken as the cutoff point,the sensitivity and specificity of elastography were 78.41%and 98.51%,and the Youden index reached the highest,with the value being 0.7692.The stiffness values of two indeterminate benign lymph nodes,the elastrographicfindings of which were rated as patterns 2 and 3,were below the cutoff point.The elastographicfindings of 10 malignant lymph nodes were also classified as pattern 2 or 3.Only one of them had the stiffness values below the cutoff point.It was concluded that ultrasound elastography is a novel,noninvasive and convenient tool for the differentiation of the nature of the superficial lymph nodes in clinical practice. | Yanrong ZHANG Qing LV Yehua YIN Mingxing XIE Feixiang XIANG Chengfa LU Tianwei YAN Wei LI Hui XU Yan HUANG | 2009 | Frontiers of Medicine2009，3，3： | 0 |
| 15 | Achieving high initial Coulombic efficiency for competent Na storage by microstructure tailoring from chiral nematic nanocrystalline cellulose显示文摘Although it has been proven that porous,heteroatomic,and defective structures improve Na storage performance,they also severely affect the initial Coulombic efficiency(ICE)due to the huge irreversible capacity in the first cycle,which always limits the practical application of carbon anodes in commercial Na-ion batteries(NIBs).Here,we show the successful synthesis of nanocrystalline cellulose and the derivative hard carbons.A series of treatments including acid hydrolysis,hydrothermal carbonization,and hightemperature pyrolysis help tune the pores,heteroatoms,and defects to achieve an optimized balance between superior ICE and reversible capacity of up to 90.4%and 314 mAh g^(−1).This study highlights that tailoring the electrode microstructure could be an important strategy in the future design of carbonaceous anode materials for high-performance Na-ion batteries. | Fei Xie Zhen Xu Zhenyu Guo Anders CSJensen Jingyu Feng Hui Luo Feixiang Ding Yaxiang Lu Yong-Sheng Hu Maria-Magdalena Titirici | 2022 | Carbon Energy2022，4，5： | 0 |
| 16 | Evaluation and prediction of the status of COVID-19 epidemic prevention and control based on the SEIR+CAQ model显示文摘This paper analyzes the spread of the COVID-19 epidemic in China,establishes a SEIR^(+CAQ)epidemiologic model that classifies the diagnosed population into asymptomatic,mild,and severe,and considers the condition of an isolated population.First of all,we theoretically analyzed the key problems of the disease-free equilibrium,stability,and basic reproduction number of the model.Then,combined with the actual data,the development trend of the epidemic situation is simulated and compared,and the influence of some important parameters is discussed in the model evaluation part.Finally,based on the theoretical analysis and numerical simulation results,we forecast the future development of the COVID-19 epidemic and put forward some reasonable scientific suggestions for the government to formulate a future epidemic prevention policy. | Xingzhi Chen Baodan Tian Feixiang Huang Daiwen Wang Linyan Fu Haoying Xu | 2021 | International Journal of Modeling, Simulation, and Scientific Computing2021，12，3： | 0 |
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