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| 1 | Remote sensing-based global crop monitoring: experiences with China’s CropWatch system显示文摘Monitoring the production of main agricultural crops is important to predict and prepare for disruptions in food supply and fluctuations in global crop market prices.China’s global crop-monitoring system(CropWatch)uses remote sensing data combined with selected field data to determine key crop production indicators:crop acreage,yield and production,crop condition,cropping intensity,crop-planting proportion,total food availability,and the status and severity of droughts.Results are combined to analyze the balance between supply and demand for various food crops and if needed provide early warning about possible food shortages.CropWatch data processing is highly automated and the resulting products provide new kinds of inputs for food security assessments.This paper presents a comprehensive overview of CropWatch as a remote sensingbased system,describing its structure,components,and monitoring approaches.The paper also presents examples of monitoring results and discusses the strengths and limitations of the CropWatch approach,as well as a comparison with other global crop-monitoring systems. | Bingfang Wu Jihua Meng Qiangzi Li Nana Yan Xin Du Miao Zhang | 2014 | International Journal of Digital Earth2014，7，2： | 6 |
| 2 | Development and experimental validation of an automatic parking brake system with less driveline sensor显示文摘Electrical Parking Brake(EPB) has been popularly used in passenger cars over the past ten years. With the help of the several kinds of sensors mounted in driveline for the total traction force estimation, EPB can obtain well performance on drive-off assistance and automatic parking brake. Furthermore, its AUTOHOLD function can realize automatic parking brake and ease the driver. However, given that the higher cost and complexity of this traction force estimation method based on the driveline sensors and its slower response resulted by applying maximum parking force for safety parking while driving off, a novel automatic parking brake system without these transmission system sensors, such as clutch position sensor for the cars with manual transmission, is proposed in this paper, including its control scheme and application test. Firstly, the indirect judgement method of the appropriate moment to release the parking brake, which is based on the car pitch moment when it drives off, is introduced according to the force analysis when the car is ready to go. Then a pragmatic mass estimation method for proper brake force calculation is proposed for improving the drive-off performance. In addition, for the convenience and drivability of skillful driver, as well as the system reliability, a mechanical redundant design to reserve the conventional handbrake lever is also described. Finally, various simulations based on CarSim software and road tests are performed to validate its effectiveness. | WANG JunNian SUN NaNa YAN JiaWei SONG DaFeng WANG QingNian | 2018 | Science China(Technological Sciences)2018，61，11： | 4 |
| 3 | The formation of perovskite multiple quantum well structures for high performance light-emitting diodes显示文摘Recent works showed that high efficient perovskite light-emitting diodes can be achieved from solution-processed,self-organized multiple quantum wells(MQWs)with an energy cascade.We investigate how the mixing of QWs with different band gaps can affect the perovskite LED device performance.We find that the annealing process can significantly affect the constitution of the MQWs films,where the dominant phase can evolve from large band gap QWs to small band gap QWs.The optimal constitution for LED application lies in a transition point of small-n QWs dominant phase to large-n QWs dominant phase,when the MQW film presents highest photoluminescence while still remains uniform film morphology. | Yan Sun Li Zhang Nana Wang Shuting Zhang Yu Cao Yanfeng Miao Mengmeng Xu Hao Zhang Hai Li Chang Yi Jianpu Wang Wei Huang | 2018 | npj Flexible Electronics2018，2，1： | 4 |
| 4 | Generation of rat blood vasculature and hematopoietic cells in rat-mouse chimeras by blastocyst complementation显示文摘Interspecies chimera through blastocyst complementation could be an alternative approach to create human organs in animals by using human pluripotent stem cells.A mismatch of the major histocompatibility complex of vascular endothelial cells between the human and host animal will cause graft rejection in the transplanted organs.Therefore,to achieve a transplantable organ in animals without rejection,creation of vascular endothelial cells derived from humans within the organ is necessary.In this study,to explore whether donor xeno-pluripotent stem cells can compensate for blood vasculature in host animals,we generated rat-mouse chimeras by injection of rat embryonic stem cells(rESCs)into mouse blastocysts with deficiency of Flk-1 protein,which is associated with endothelial and hematopoietic cell development.We found that rESCs could differentiate into vascular endothelial and hematopoietic cells in the rat-mouse chimeras.The whole yolk sac(YS)of Flk-1^EGFP/ECFP rat-mouse chimera was full of rat blood vasculature.Rat genes related to vascular endothelial cells,arteries,and veins,blood vessels formation process,as well as hematopoietic cells,were highly expressed in the YS.Our results suggested that rat vascular endothelial cells could undergo proliferation,migration,and self-assembly to form blood vasculature and that hematopoietic cells could differentiate into B cells,T cells,and myeloid cells in rat-mouse chimeras,which was able to rescue early embryonic lethality caused by Flk-1 deficiency in mouse. | Xiaomin Wang Hui Shi Juanjuan Zhou Qingjian Zou Quanjun Zhang Shixue Gou Pengfei Chen Lisha Mou Nana Fan Yangyang Suo Zhen Ouyang Chengdan Lai Quanmei Yan Liangxue Lai | 2020 | Journal of Genetics and Genomics2020，47，5： | 2 |
| 5 | Melon short internode(CmSi)encodes an ERECTA-like receptor kinase regulating stem elongation through auxin signaling显示文摘Plant height is one of the most important agronomic traits that directly determines plant architecture,and compact or dwarf plants can allow for increased planting density and land utilization as well as increased lodging resistance and economic yield.At least four dwarf/semidwarf genes have been identified in different melon varieties,but none of them have been cloned,and little is known about the molecular mechanisms underlying internode elongation in melon.Here,we report map-based cloning and functional characterization of the first semidwarf gene short internode(Cmsi)in melon,which encodes an ERECTA-like receptor kinase regulating internode elongation.Spatial-temporal expression analyses revealed that CmSI exhibited high expression in the vascular bundle of the main stem during internode elongation.The expression level of CmSI was positively correlated with stem length in the different melon varieties examined.Ectopic expression of CmSI in Arabidopsis and cucumber suggested CmSI as a positive regulator of internode elongation in both species.Phytohormone quantitation and transcriptome analysis showed that the auxin content and the expression levels of a number of genes involved in the auxin signaling pathway were altered in the semidwarf mutant,including several well-known auxin transporters,such as members of the ABCB family and PINFORMED genes.A melon polar auxin transport protein CmPIN2 was identified by protein–protein interaction assay as physically interacting with CmSI to modulate auxin signaling.Thus,CmSI functions in an auxin-dependent regulatory pathway to control internode elongation in melon.Our findings revealed that the ERECTA family gene CmSI regulates stem elongation in melon through auxin signaling,which can directly affect polar auxin transport. | Sen Yang Kaige Zhang Huayu Zhu Xiaojing Zhang Wenkai Yan Nana Xu Dongming Liu Jianbin Hu Yufeng Wu Yiqun Weng Luming Yang | 2020 | Horticulture Research2020，7，1： | 2 |
| 6 | Dynamic localization and the associated translocation mechanism of HMGBs in response to GCRV challenge in CIK cells显示文摘高活动性的组盒子(HMGB ) 蛋白质,联系染色质的原子蛋白质的一个家庭,惊人地在哺乳动物的免疫系统起 multifaceted 作用。因此远,很少在 teleosts 对 HMGB 的 nucleocytoplasmic 分发被知道。现在的学习系统地在 Ctenopharyngodon idella 调查了所有六 HMGB 蛋白质的动态本地化肾(CIK ) 房间。在基础条件下面,对原子核只局部性的所有 HMGB。草鲤鱼 reovirus (GCRV ) , polyinosinic-polycytidylic (poly (I∶ C )) 钾盐和 lipopolysaccharide (LPS ) 质问唤起了 HMGB 的原子出口到各种各样的度:GCRV 挑战导致了 CiHMGB2b 的最高原子的出口,并且 poly (I∶ C ) 并且 LPS 唤起了 CiHMGB1b 的最高的 nucleocytoplasmic shuttling。总的来说, CiHMGB2a 和 CiHMGB3b 的 nucleocytoplasmic shuttling 被这些挑战很少导致。动态成像揭开了 nucleocytoplasmic CiHMGB2b 的导致 GCRV 的重定位在经历 karyotheca 破裂, apoptosis 或增长的房间发生了。西方的污点分析被用来在整个房间 lysates, cytosol,原子部分和文化媒介检验 HMGB-EGFP 熔化蛋白质。进一步的调查表明了 N 终端 HMG 盒子的原子保留和 C 终端酸的尾巴的 nucleocytoplasmic 分发。动态重定位的比较分析全身,截断或妄想的 HMGB 证实在 HMG 盒子和 C 尾巴领域之间的 intramolecular 相互作用调停了 HMGB 的 nucleocytoplasmic translocation。这些结果不仅提供 HMGB 的 subcellular 本地化的全面理解,而且由 GCRV 挑战揭示 HMGB 的 nucleocytoplasmic translocation 的正式就职机制,它在 teleosts 的天生的免疫在病原体, HMGB 和模式识别受体之中在相互作用上为进一步的研究打一个基础。 | Youliang Rao Jianguo Su Chunrong Yang Nana Yan Xiaohui Chen Xiaoli Feng | 2015 | Cellular & Molecular Immunology2015，12，3： | 2 |
| 7 | Production of transgenic pigs over-expressing theantiviral gene Mx1显示文摘The myxovirus resistance gene (Mx1) has a broad spectrum of antiviral activities. It is therefore an interestingcandidate gene to improve disease resistance in farm animals. In this study, we report the use of somatic cellnuclear transfer (SCNT) to produce transgenic pigs over-expressing the Mx1 gene. These transgenic pigs expressapproximately 15–25 times more Mx1 mRNA than non-transgenic pigs, and the protein level of Mx1 was alsomarkedly enhanced. We challenged fibroblast cells isolated from the ear skin of transgenic and control pigs withinfluenza A virus and classical swine fever virus (CFSV). Indirect immunofluorescence assay (IFA) revealed a profounddecrease of influenza A proliferation in Mx1 transgenic cells. Growth kinetics showed an approximately 10-foldreduction of viral copies in the transgenic cells compared to non-transgenic controls. Additionally, we found thatthe Mx1 transgenic cells were more resistant to CSFV infection in comparison to non-transgenic cells. These resultsdemonstrate that the Mx1 transgene can protect against viral infection in cells of transgenic pigs and indicate thatthe Mx1 transgene can be harnessed to develop disease-resistant pigs. | Quanmei Yan Huaqiang Yang Dongshan Yang Bentian Zhao Zhen Ouyang Zhaoming Liu Nana Fan Hongsheng Ouyang Weiwang Gu Liangxue Lai | 2014 | Cell Regeneration2014，3，1： | 2 |
| 8 | Water body mapping method with HJ-1A/B satellite imagery显示文摘 | Shanlong Lu Bingfang Wu Nana Yan Hao Wang | 2010 | International Journal of Applied Earth Observations and Geoinformation2010，，3： | 1 |
| 9 | The spatial pattern and governance of Zhongyuan Urban-Rural System in its development trajectory显示文摘It remains unclear on how transportation network interacts with economic network in an urban-rural agglomeration,while such knowledge is crucial for urban-rural system governance and sustainability.We explored such spatial interactions in the Zhongyuan Urban-Rural Agglomeration(ZURA)from 1995 to 2015.The structure of transportation network was measured by spatial syntax model,and that of economic network was gauged by improved gravity model.The associations between transportation and economic networks were investigated by conducting bivariate spatial autocorrelation analysis.The global Moran’s I showed that the two networks were positively correlated from 1995 to 2015.The local Moran’s I identified“high-high”associations between transportation and economic networks around core cities in 1995,which further extended to surrounding cities.Our results reveal that peripheral cities with highly developed transportation system have little spatial economic impact on neighboring rural areas,while cities with low transportation accessibility restrained its external economic influence of neighboring cities and rural areas.Our findings shed light on future urban-rural system governance,where the“multi-center,unbalanced”growth patterns of economic network and the“multi-core,multi-directional”structure of transportation network are more likely to contribute to the sustainability of urban-rural systems. | FU Haiyue WANG Yan MAO Liang HONG Nana WANG Zhaoya ZHAO Shuchang LIAO Chuan | 2022 | Journal of Geographical Sciences2022，32，7： | 1 |
| 10 | Remote Sensing-based Spatiotemporal Distribution of Grassland Aboveground Biomass and Its Response to Climate Change in the Hindu Kush Himalayan Region显示文摘The grassland in the Hindu Kush Himalayan(HKH) region is one of the large st and most biodiverse mountain grassland types in the world,and its ecosystem service functions have profound impacts on the sustainable development of the HKH region.Monitoring the spatiotemporal distribution of grassland aboveground biomass(AGB) accurately and quantifying its response to climate change are indispensable sources of information for sustainably managing grassland ecosystems in the HKH region.In this study,a pure vegetation index model(PVIM) was applied to estimate the long-term dynamics of grassland AGB in the HKH region during 2000-2018.We further quantified the response of grassland AGB to climate change(temperature and precipitation) by partial correlation and variance partitioning analyses and then compared their differences with elevation.Our results demonstrated that the grassland AGB predicted by the PVIM had a good linear relationship with the ground sampling data.The grassland AGB distribution pattern showed a decreasing trend from east to west across the HKH region except in the southern Himalayas.From 2000 to 2018,the mean AGB of the HKH region increased at a rate of 1.57 g/(m~2·yr) and ranged from 252.9(2000) to 307.8 g/m~2(2018).AGB had a positive correlation with precipitation in more than 80% of the grassland,and temperature was positively correlated with AGB in approximately half of the region.The change in grassland AGB was more responsive to the cumulative effect of annual precipitation,while it was more sensitive to the change in temperature in the growing season;in addition,the influence of climate varied at different elevations.Moreover,compared with that of temperature,the contribution of precipitation to grassland AGB change was greater in approximately 60% of the grassland,but the differences in the contribution for each climate factor were small between the two temporal scales at elevations over 2000 m.An accurate assessment of the temporal and spatial distributions of grassland AGB and the quantification of its response to climate change are of great significance for grassland management and sustainable development in the HKH region. | XU Cong LIU Wenjun ZHAO Dan HAO Yanbin XIA Anquan YAN Nana ZENG Yuan | 2022 | Chinese Geographical Science2022，32，5： | 1 |
| 11 | Validation of ETWatch using field measurements at diverse landscapes: a case study in Hai Basin of China显示文摘 | Wu Binfang Yan Nana Xiong Jun | 2012 | Journal of Hydrology2012，，： | 1 |
| 12 | Genomic sequence comparison, promoter activity, SNP detection of RIG-I gene and association with resistance/susceptibility to grass carp reovirus in grass carp ( Ctenopharyngodon idella )显示文摘 | Quanyuan Wan Jianguo Su Xiaohui Chen Chunrong Yang Lijun Chen Nana Yan Yixuan Zhang | 2012 | Developmental and Comparative Immunology2012，，： | 1 |
| 13 | Challenges and opportunities in remote sensing-based crop monitoring:a review显示文摘Building a more resilient food system for sustainable development and reducing uncertainty in global food markets both require concurrent and near-real-time and reliable crop information for decision making.Satellite-driven crop monitoring has become a main method to derive crop information at local,regional,and global scales by revealing the spatial and temporal dimensions of crop growth status and production.However,there is a lack of quantitative,objective,and robust methods to ensure the reliability of crop information,which reduces the applicability of crop monitoring and leads to uncertain and undesirable consequences.In this paper,we review recent progress in crop monitoring and identify the challenges and opportunities in future efforts.We find that satellite-derived metrics do not fully capture determinants of crop production and do not quantitatively interpret crop growth status;the later can be advanced by integrating effective satellite-derived metrics and new onboard sensors.We have identified that ground data accessibility and the negative effects of knowledge-based analyses are two essential issues in crop monitoring that reduce the applicability of crop monitoring for decisions on food security.Crowdsourcing is one solution to overcome the restrictions of ground-truth data accessibility.We argue that user participation in the complete process of crop monitoring could improve the reliability of crop information.Encouraging users to obtain crop information from multiple sources could prevent unconscious biases.Finally,there is a need to avoid conflicts of interest in publishing publicly available crop information. | Bingfang Wu Miao Zhang Hongwei Zeng Fuyou Tian Andries B Potgieter Xingli Qin Nana Yan Sheng Chang Yan Zhao Qinghan Dong Vijendra Boken Dmitry Plotnikov Huadong Guo Fangming Wu Hang Zhao Bart Deronde Laurent Tits Evgeny Loupian | 2023 | National Science Review2023，10，4： | 1 |
| 14 | Pressure-induced Lifshitz transition in the type Ⅱ Dirac semimetal PtTe_2显示文摘Numerous exotic properties have been discovered in Dirac Semimetals(DSMs) and Weyl Semimetals(WSMs). In a given DSM/WSM, the Dirac/Weyl nodes usually coexist with other bulk states, making their respective contribution elusive. In this work, we distinguish the role of bulk states from the tilted Dirac nodes on the transport properties in DSMs. Specifically, we applied pressure to a type-II DSM material, PtTe2, and studied its pressure modified electronic and lattice structure systematically by using in situ transport measurements and X-ray diffraction(XRD). A pressure-induced transition at about 20 GPa is revealed in the transport properties, while the layered lattice structure is robust against pressure as illustrated in XRD measurement results.Density functional theory(DFT) calculations suggest that this is originated from the Lifshitz transition in the bulk states. Our findings provide evidence to identify the bulk states' influence on transport from the topologically-protected DSM states in the DSM material. | FengLiang Liu JiaHeng Li KeNan Zhang Shang Peng HuaQing Huang MingZhe Yan NaNa Li Qian Zhang SongHao Guo XuJie Lü Peng Cai LiFeng Yin ShuYun Zhou WenHui Duan Jian Shen WenGe Yang | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，4： | 1 |
| 15 | Integrated spatial-temporal analysis of crop water productivity of winter wheat in Hai Basin 显示文摘 | Nana Yan Bingfang Wu | 2014 | Agricultural Water Management2014，133，11： | 1 |
| 16 | Generation of gene-target dogs using CRISPR/Cas9 system显示文摘Dear Editor,Dogs(Canis familiaris)serve as human companions and are raised to herd livestock,aid hunters,guard homes,perform police and rescue work,and guide the blind.Dogs exhibit close similarities to humans in terms of metabolic,physiological,and anatomical characteristics,and thus are ideal genetic and clinical models to study human diseases(Tsai et al.,2007).Gene target technology is a powerful tool to create new strains of animals with favorable traits.However,thus far,gene-target dogs have not been developed due to their unique species-specific reproductive characteristics,which limits the applications of dogs especially in the field of biomedical research.Recently,clustered regularly interspaced short palindromic repeats(CRISPRs)/CRISPR-associated(Cas)9 system was applied to edit specific genes with a high efficiency(Cong et al.,2013;Mali et al.,2013).Here we attempt to explore the feasibility of producing gene knockout(KO)dogs by using this technology.Beagle dog,the most widely used breed in biomedical research,was used as our animal model.Myostatin(MSTN)was chosen as the first gene of interest. | Qingjian Zou Xiaomin Wang Yunzhong Liu Zhen Ouyang Haibin Long Shu Wei Jige Xin Bentian Zhao Sisi Lai Jun Shen Qingchun Ni Huaqiang Yang Huilin Zhong Li Li Minhua Hu Quanjun Zhang Zhidong Zhou Jiaxin He Quanmei Yan Nana Fan Yu Zhao Zhaoming Liu Lin Guo Jiao Huang Guanguan Zhang Jun Ying Liangxue Lai Xiang Gao | 2015 | Journal of Molecular Cell Biology2015，7，6： | 1 |
| 17 | Identification of priority areas for controlling soil erosion显示文摘 | Xiwang Zhang Bingfang Wu Feng Ling Yuan Zeng Nana Yan Chao Yuan | 2010 | Catena2010，，1： | 1 |
| 18 | Research Progress on Genetic Diversity of Cultivated Soybean Germplasm Resources in China显示文摘In this paper,by analyzing the genetic diversity of cultivated soybean germplasm resources in China,the environmental and genotypic factors that affect the genetic diversity of cultivated soybean germplasm resources were explored to further expand the genetic basis of the existing germplasm resources of cultivated soybean in China. Moreover,research progress on genetic diversity of cultivated soybean in China was summarized,which not only revealed the geographical characteristics of genetic diversity of cultivated soybean in China,but also proposed direction for research of genetic diversity of soybean. | Yongchao GONG Dongtao SONG Nana LI Yanyan PU Tingjing YAN Hanfeng DING | 2018 | Agricultural Biotechnology2018，7，2： | 1 |
| 19 | Water body mapping method with HJ-1A/B satellite imagery显示文摘 | Shanlong Lu Bingfang Wu Nana Yan | | 0，，13： | 1 |
| 20 | Optimal Gestational Weight Gain for Women with Gestational Diabetes Mellitus—China,2011–2021显示文摘Summary What is already known about this topic?Joint effects of gestational weight gain(GWG)and hyperglycemia on adverse pregnancy outcomes suggest that lower optimal GWG is optimal for women with gestational diabetes mellitus(GDM).However,there is still a lack of guidelines.What is added by this report?Optimal weekly GWG range after diagnosis of GDM for underweight,normal-weight,overweight,and obese women was 0.37–0.56 kg/week,0.26–0.48 kg/week,0.19–0.32 kg/week,and 0.12–0.23 kg/week,respectively.What are the implications for public health practice?The findings may be used to inform prenatal counseling regarding optimal gestational weight gain for women with gestational diabetes mellitus,and suggest the need for weight gain management. | Jinlang Lyu Yin Sun Yuelong Ji Nana Liu Suhan Zhang Hang Lin Yaxin Wang Xuanjin Yang Shuai Ma Na Han Yang Mi Dan Zheng Zhifen Yang Hongping Zhang Yan Jiang Liangkun Ma Haijun Wang | 2023 | China CDC weekly2023，5，9： | 0 |
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