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| 1 | Big Earth Data science:an information framework for a sustainable planet显示文摘The digital transformation of our society coupled with the increasing exploitation of natural resources makes sustainability challenges more complex and dynamic than ever before.These changes will unlikely stop or even decelerate in the near future.There is an urgent need for a new scientific approach and an advanced form of evidence-based decisionmaking towards the benefit of society,the economy,and the environment.To understand the impacts and interrelationships between humans as a society and natural Earth system processes,we propose a new engineering discipline,Big Earth Data science.This science is called to provide the methodologies and tools to generate knowledge from diverse,numerous,and complex data sources necessary to ensure a sustainable human society essential for the preservation of planet Earth.Big Earth Data science aims at utilizing data from Earth observation and social sensing and develop theories for understanding the mechanisms of how such a social-physical system operates and evolves.The manuscript introduces the universe of discourse characterizing this new science,its foundational paradigms and methodologies,and a possible technological framework to be implemented by applying an ecosystem approach.CASEarth and GEOSS are presented as examples of international implementation attempts.Conclusions discuss important challenges and collaboration opportunities. | Huadong Guo Stefano Nativi Dong Liang Max Craglia Lizhe Wang Sven Schade Christina Corban Guojin He Martino Pesaresi Jianhui Li Zeeshan Shirazi Jie Liu Alessandro Annoni | 2020 | International Journal of Digital Earth2020，13，7： | 12 |
| 2 | Generation of ready to use (RTU) products over China based on Landsat series data显示文摘Earth observation community has entered into the era of big data.Family of Landsat sensors have collected massive medium resolution satellite images,which are valuable for long-term land surface monitoring.In order to significantly reduce the magnitude of data processing for remote sensing data users,Landsat-based Ready to Use(RTU)products have been produced.Main RTU products,including orthorectified products,land surface reflectance,land surface temperature,large-area mosaic image,and standard image map products,are described.The resulting Landsat RTU products are hosted on the RSGS earth observation data sharing web site for free download(http://ids.ceode.ac.cn/rtu/).These new products will provide consistent,standardized,multi-decadal image data for robust land cover change detection and monitoring across the Earth sciences.In the coming years,CASEarth DataBank system will be constructed,which is an intelligent data service platform for providing not only the RTU products from multi-source satellite data,but also big earth data analysis methods. | Guojin He Zhaoming Zhang Weili Jiao Tengfei Long Yan Peng Guizhou Wang Ranyu Yin Wei Wang Xiaomei Zhang Huichan Liu Bo Cheng Bo Xiang | 2018 | Big Earth Data2018，2，1： | 8 |
| 3 | Parameterization for fitting triangular mesh显示文摘In recent years, with the development of 3D data acquisition equipments, the study on reverse engineering has become more and more important. However, the existing methods for parameterization can hardly ensure that the parametric domain is rectangular, and the parametric curve grid is regular. In order to overcome these limitations, we present a novel method for parameterization of triangular meshes in this paper. The basic idea is twofold: first, because the isotherms in the steady temperature do not intersect with each other, and are distributed uniformly, no singularity (fold-over) exists in the parameterization; second, a 3D harmonic equation is solved by the finite element method to obtain the steady temperature field on a 2D triangular mesh surface with four boundaries. Therefore, our proposed method avoids the embarrassment that it is impossible to solve the 2D quasi-harmonic equation on the 2D triangular mesh without the parametric values at mesh vertices. Furthermore, the isotherms on the temperature field are taken as a set of iso-parametric curves on the triangular mesh surface. The other set of iso-parametric curves can be obtained by connecting the points with the same chord-length on the isotherms sequentially. The obtained parametric curve grid is regular, and distributed uniformly, and can map the triangular mesh surface to the unit square domain with boundaries of mesh surface to boundaries of parametric domain, which ensures that the triangular mesh surface or point cloud can be fitted with the NURBS surface. | LIN Hongwei WANG Guojin LIU Ligang BAO Hujun | 2006 | Progress in Natural Science:Materials International2006，16，11： | 4 |
| 4 | Preparation of P(St-NMA)microsphere inks and their application in photonic crystal patterns with brilliant structural colors显示文摘Patterned photonic crystals with structural colors on textile substrates have attracted a special attention due to the great advantages in application,which currently become a research hot-spot.This study utilized an ink-jet printing technology to prepare high-quality photonic crystal patterns with structural colors on polyester substrates.The self-assembly temperature of poly(styrene-N-methylol acrylamide)(P(St-NMA))microspheres set to construct photonic crystals were deeply optimized.Moreover,the structural colors of prepared photonic crystal patterns were characterized and evaluated.When the mass fraction of P(St-NMA)microspheres was 1.0 wt.%,the pH value ranged from 5 to 7,and the surface tension was in the range of 63.79 to 71.20 mN/m,inks could present the best print performance.At 60°C,prepared P(St-NMA)microsphere inks were good for printing to obtain patterned photonic crystals with regular arrangement and beautiful structural colors.Specifically,photonic crystals with different colors could be constructed by regulating the diameter of microspheres in inks,and prepared structural colors exhibited distinct iridescent phenomenon.The present results could provide a theoretical basis for the industrial realization of patterned photonic crystals by ink-jet printing technology. | Guojin Liu Pengshuai Han Liqin Chai Peng Lu Yuping He Lan Zhou | 2020 | Frontiers of Materials Science2020，14，1： | 3 |
| 5 | Triangulation of red sprites observed above a mesoscale convective system in North China显示文摘The triangulation of red sprites was obtained, based on concurrent observations over a mesoscale convective system(MCS) in North China from two stations separated by about 450 km. In addition, broadband sferics from the sprite-producing lightning were measured at five ground stations, making it possible to locate and identify the individual causative lightning discharges for different elements in this dancing sprite event. The results of our analyses indicate that the sprites were produced above the trailing stratiform region of the MCS, and their parent strokes were located mainly in the peripheral area of the stratiform. The lateral offset between sprites and causative strokes ranges from a few km to more than 50 km. In a particularly bright sprite, with a distinct halo feature and streamers descending down to an altitude of approximately 48 km, the sprite current signal identified in the electric sferic, measured at a range of about 1,110 km, peaked at approximately 1 ms after the return stroke. | YongPing Wang GaoPeng Lu Ming Ma HongBo Zhang YanFeng Fan GuoJin Liu ZheRun Wan Yu Wang Kang-Ming Peng ChangZhi Peng FeiFan Liu BaoYou Zhu BinBin Ni XuDong Gu Long Chen Juan Yi RuoXian Zhou | 2019 | Earth and Planetary Physics2019，3，2： | 2 |
| 6 | Speckle reduction by adaptive window anisotropic dif-fusion显示文摘 | LIU Guojin ZENG Xiaoping TIAN Fengchun | 2009 | Signal Processing2009，89，： | 1 |
| 7 | Hepcidin and GDF15 in anemia of multiple myeloma显示文摘 | Shuchong Mei Huaquan Wang Rong Fu Wen Qu Limin Xing Guojin Wang Jia Song Hong Liu Lijuan Li Xiaoming Wang Yuhong Wu Jin Guan Erbao Ruan Zonghong Shao | 2014 | International Journal of Hematology2014，，3： | 1 |
| 8 | Explicit matrix representation for NURBS curve and surface 显示文摘 | Liu Ligang Wang Guojin | 2002 | Computer Aided Geometric Design2002，19，6： | 1 |
| 9 | Comparision of survival among patients with breast cancer treated at First Teaching Hospital, Changchun,China, and Saint-Sacrement Hospital, Quebec, Canada显示文摘 | Gai Xueliang Fan Zhimin Liu Guojin | 1995 | Chin J Cancer Res1995，7，： | 1 |
| 10 | Speckle reduction by adaptive window anisotropic diffusion显示文摘 | Liu Guojin Zeng Xiaoping Tian Fengchun | 2009 | Signal Processing2009，89，11： | 1 |
| 11 | Sleeve lobectomy versus pneumonectomy for lung cancer: a comparative analysis of survival and sites or recurrences显示文摘 | Jean Deslauriers Jocelyn Grégoire Louis F Jacques Michel Piraux Liu Guojin Yves Lacasse | 2004 | The Annals of Thoracic Surgery2004，，4： | 1 |
| 12 | Application of neural network ensemble for structural damage detection 显示文摘 | Yu Fanhua Liu Hanbing Tan Guojin | 2007 | Journal of Jilin University ( Engineering and Technology Edition)2007，37，2： | 1 |
| 13 | Overexpression of high-mobility group box 1 correlates with tumor progression and poor prognosis in human colorectal carcinoma显示文摘 | Xingjun Yao Gang Zhao Hongfa Yang Xinyu Hong Li Bie Guojin Liu | 2010 | Journal of Cancer Research and Clinical Oncology2010，，5： | 1 |
| 14 | Abnormalities of quantities and functions of linker for activations of T cells in severe aplastic anemia显示文摘 | Weiwei Sheng Chunyan Liu Rong Fu Huaquan Wang Wen Qu Erbao Ruan Guojin Wang Hong Liu Yuhong Wu Jia Song Limin Xing Jing Guan Lijuan Li Hui Liu Zonghong Shao | 2014 | Eur J Haematol2014，，3： | 1 |
| 15 | Explicit Matrix representation for NURBS curves and surfaces显示文摘 | Liu Ligang Wang Guojin | 2002 | Computer Aided Geometric Design2002，19，： | 1 |
| 16 | Self-healable electroluminescent devices显示文摘Electroluminescent(EL)devices have been extensively integrated into multi-functionalized electronic systems in the role of the vitally constituent light-emitting part.However,the lifetime and reliability of EL devices are often severely restricted by concomitant damage,especially when the strain exceeds the mechanical withstanding limit.We report a self-healable EL device by adopting a modified self-healable polyacrylic acid hydrogel as the electrode and a selfhealable polyurethane as a phosphor host to realize the first omni-layer-healable light-emitting device.The physicochemical properties of each functionalized layer can be efficiently restored after experiencing substantial catastrophic damage.As a result,the luminescent performance of the self-healable EL devices is well recovered with a high healing efficiency(83.2%for 10 healing cycles at unfixed spots,and 57.7%for 20 healing cycles at a fixed spot).In addition,inter-device healing has also been developed to realize a conceptual“LEGO”-like assembly process at the device level for light-emitting devices.The design and realization of the self-healable EL devices may revive their performance and expand their lifetime even after undergoing a deadly cut.Our self-healable EL devices may serve as model systems for electroluminescent applications of the recently developed ionically conductive healable hydrogels and dielectric polymers. | Guojin Liang Zhuoxin Liu Funian Mo Zijie Tang Hongfei Li Zifeng Wang Venkateshwarlu Sarangi Abhijit Pramanick Jun Fan Chunyi Zhi | 2018 | Light(Science & Applications)2018，7，1： | 0 |
| 17 | Research on Cheating Detection Method of Programming Source Codes by Self-Organizing Maps显示文摘 | Guojin Zhu Le Liu | 2013 | 中国电子商情(通信市场)2013，，1： | 0 |
| 18 | Encapsulated paclitaxel nanoparticles exhibit enhanced anti-tumor efficacy in A549 non-small lung cancer cells显示文摘在现在的学习, paclitaxel (PTX ) 与 -polylactide (PLA )/D- tocopheryl 聚乙烯乙二醇 1000 succinate (TPGS )(PEG-PLA/TPGS ) 和这 PTX 的提高的反肿瘤活动混合了的聚乙烯乙二醇(木钉) 被包含微粒(PTX 公里) 在肺癌症房间被评估。一个溶剂蒸发方法准备的 PTX 公里被表明有高度装载药的效率(23.2%) ,高封装效率(76.4%) ,和小尺寸(59 nm ) 。在 vitro,版本试金显示出 PTX 公里的慢版本行为,建议在长发行量时间的 PTX 公里必需品的好稳定性。在 vitro 动力学,试金证明 PTX 公里能支持吸收和增加亲戚 bioavailability。PTX 公里的反癌症效率被两个也在 vitro 并且在 vivo 研究检验。当时, PTX 公里与许多更低的 IC 50 价值对肺癌症房间展出明显的 cytotoxicity 与商业提出的 PTX 或 PTX + TPGS 相比。裸体老鼠上的异种皮移植肿瘤模特儿研究显示 PTX 公里比另外的明确的表达更有效地禁止肿瘤生长。大多数混合微粒在肿瘤地点是不可分的展出反癌症活动,这也被发现。我们的结果建议 PTX 公里的使用可以作为反癌症药是一条有效途径治疗肺癌症。 | Guojin Huang Bao Zang Xiaowei Wang Gang Liu Jianqiang Zhao | 2015 | Acta Biochimica et Biophysica Sinica2015，47，12： | 0 |
| 19 | Comprehensive phylogenetic analyses of Orchidaceae using nuclear genes and evolutionary insights into epiphytism显示文摘Orchidaceae(with>28,000 orchid species)are one of the two largest plant families,with economically and ecologically important species,and occupy global and diverse niches with primary distribution in rainforests.Among orchids,70%grow on other plants as epiphytes;epiphytes contribute up to~50%of the plant diversity in rainforests and provide food and shelter for diverse animals and microbes,thereby contributing to the health of these ecosystems.Orchids account for over two-thirds of vascular epiphytes and provide an excellent model for studying evolution of epiphytism.Extensive phylogenetic studies of Orchidaceae and subgroups have;been crucial for understanding relationships among many orchid lineages,although some uncertainties remain.For example,in the largest subfamily Epidendroideae with nearly all epiphytic orchids,relationships among some tribes and many subtribes are still controversial,hampering evolutionary analyses of epiphytism.Here we obtained 1,450 low-copy nuclear genes from 610 orchid species,including 431 with newly generated transcriptomes,and used them for the reconstruction of robust Orchidaceae phylogenetic trees with highly supported placements of tribes and subtribes.We also provide generally wellsupported phylogenetic placements of 131 genera and 437 species that were not sampled by previous plastid and nuclear phylogenomic studies.Molecular clock analyses estimated the Orchidaceae origin at~132 million years ago(Ma)and divergences of most subtribes from 52 to 29 Ma.Character reconstruction supports at least 14 parallel origins of epiphytism;one such origin was placed at the most recent common ancestor of~95%of epiphytic orchids and linked to modern rainforests.Ten occurrences of rapid increase in the diversification rate were detected within Epidendroideae near and after the K-Pg boundary,contributing to~80%of the Orchidaceae diversity.This study provides a robust and the largest family-wide Orchidaceae nuclear phylogenetic tree thus far and new insights into the evolution of epiphytism in vascular plants. | Guojin Zhang Yi Hu Ming-Zhong Huang Wei-Chang Huang Ding-Kun Liu Diyang Zhang Haihua Hu Jason L.Downing Zhong-Jian Liu Hong Ma | 2023 | Journal of Integrative Plant Biology2023，65，5： | 0 |
| 20 | Fourth-order cumulant multiple matrix reconstruction to estimate direction of arrival for coherent sound source under low signal-to-noise ratio显示文摘To address the problem of energy diffusion in the subspace of coherent sources and the difficulty of estimating the direction of arrival(DOA)with an under-ranked covariance matrix,an estimation method using a higher-order matrix transformation,i.e.the fourth-order cumulant multiple matrix reconstruction(FOC-MMR),is proposed.Firstly,short-time Fourier transform is performed on the array sound pressure data in frames.Then,the singular value decomposition of the fourth-order cumulant-expanded higher-order covariance matrix is computed to obtain the higher-order noise eigenvectors,which is guaranteed to orthogonally match with the expanded high-order array manifold vector.Finally,DOA estimation of the coherent signals is achieved.The simulation results of the coherent single-frequency rectangular pulse signal show that applying the FOC-MMR method to a uniform linear array(ULA,M=4),for coherent signals(θ_(1)=-20°andθ_(2)=20°)with signal-to-noise ratio(SNR)-15 dB,the root mean square error of the estimated DOA is kept within 1.5°.When SNR=10 dB,the azimuthal interval of the two coherent signals can be correctly resolved down to 5°.Furthermore,the FOC-MMR algorithm to a rectangular area array consisting of multiple ULAs and its ability to discriminate adjacent sources and suppress Gaussian noise is verified in the experiment in which coherent pulsed sound sources are mixed with SNR=5 dB Gaussian white noise.The FOC-MMR algorithm not only solves the problem of energy diffusion between noise and signal eigenvectors caused by signal coherence by expanding the sound pressure array data to obtain a full-rank high-order covariance matrix,but also achieves DOA estimation of multiple coherent sound sources incident at wide angles with high directional accuracy and spatial resolution. | ZHANG Hao ZHEN Dong LIU Yinghui FENG Guojin ZHANG Hao | 2023 | Chinese Journal of Acoustics2023，42，3： | 0 |
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