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16篇 您的检索式:作者名="Hao Xianfeng"
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1Analysis of genetic architecture and favorable allele usage of agronomic traits in a large collection of Chinese rice accessions显示文摘Genotyping and phenotyping large natural populations provide opportunities for population genomic analysis and genome-wide association studies(GWAS). Several rice populations have been re-sequenced in the past decade;however, many major Chinese rice cultivars were not included in these studies. Here, we report large-scale genomic and phenotypic datasets for a collection mainly comprised of 1,275 rice accessions of widely planted cultivars and parental hybrid rice lines from China. The population was divided into three indica/Xian and three japonica/Geng phylogenetic subgroups that correlate strongly with their geographic or breeding origins. We acquired a total of 146 phenotypic datasets for 29 agronomic traits under multi-environments for different subpopulations. With GWAS, we identified a total of 143 significant association loci, including three newly identified candidate genes or alleles that control heading date or amylose content. Our genotypic analysis of agronomically important genes in the population revealed that many favorable alleles are underused in elite accessions, suggesting they may be used to provide improvements in future breeding efforts. Our study provides useful resources for rice genetics research and breeding.Xiuxiu Li Zhuo Chen Guomin Zhang Hongwei Lu Peng Qin Ming Qi Ying Yu Bingke Jiao Xianfeng Zhao Qiang Gao Hao Wang Yunyu Wu Juntao Ma Liyan Zhang Yongli Wang Lingwei Deng Shanguo Yao Zhukuang Cheng Diqiu Yu Lihuang Zhu Yongbiao Xue Chengcai Chu Aihong Li Shigui Li Chengzhi Liang 2020Science China(Life Sciences)2020,63,11:8
2The stability analysis of rolling motion of hypersonic vehicles and its validations显示文摘The stability of the rolling motion of near space hypersonic vehicles with rudder control is studied using method of qualitative analysis of nonlinear differential equations,and the stability criteria of the deflected rolling motions are improved.The outcomes can serve as the basis for further study regarding the influence of pitching and lateral motion on the stability of rolling motion.To validate the theoretical results,numerical simulations were done for the rolling motion of two hypersonic vehicles with typical configurations.Also,wind tunnel experiments for four aircraft models with typical configurations have been done.The results show that:1)there exist two dynamic patterns of the rolling motion under statically stable condition.The first one is point attractor,for which the motion of aircraft returns to the original state.The second is periodic attractor,for which the aircraft rolls periodically.2)Under statically unstable condition,there exist three dynamic patterns of rolling motion,namely,the point attractor,periodic attractor around deflected state of rolling motion,and double periodic attractors or chaotic attractors.YE YouDa ZHAO ZhongLiang TIAN Hao ZHANG XianFeng 2014Science China(Physics,Mechanics & Astronomy)2014,57,12:8
3Molecular dynamics simulation for surface melting and self-preservation effect of methane hydrate显示文摘The surface melting process of structure sI methane hydrate is simulated at T = 240, 260, 280, and 300 K using NVT molecular dynamics method. The simulation results show that a quasi-liquid layer will be formed during the melting process. The density distribution, translation, orientation, and dynamic properties of water molecules in the quasi-liquid layer are calculated as a function of the distance normal to the interface, which indicates the performance of quasi-liquid layer exhibits a continuous change from crystal-like to liquid-like. The quasi-liquid layer plays as a resistance of mass transfer restraining the diffusion of water and methane molecules during the melting process. The resistance of quasi-liquid layer will restrain methane molecules diffuse from hydrate phase to gas phase and slow the melting process, which can be considered as a possible mechanism of self-preservation effect. The performance of quasi-liquid layer is more crystal-like when the temperature is lower than the melt- ing-point of water, which will exhibit an obvious self-preservation. The self-preservation will weaken while the temperature is higher than the melting-point of water because of the liquid-like performance of the quasi-liquid layer.DING LiYing GENG ChunYu ZHAO YueHong HE XianFeng WEN Hao 2008Science China Chemistry2008,51,7:3
4Novel Graphene Biosensor Based on the Functionalization of Multifunctional Nano-bovine Serum Albumin for the Highly Sensitive Detection of Cancer Biomarkers显示文摘A simple,convenient,and highly sensitive bio-interface for graphene field-effect transistors(GFETs) based on multifunctional nano-denatured bovine serum albumin(nano-dBSA) functionalization was developed to target cancer bio-markers.The novel graphene–protein bioelectronic interface was constructed by heating to denature native BSA on the graphene substrate surface.The formed nano-d BSA film served as the cross-linker to immobilize monoclonal antibody against car-cinoembryonic antigen(anti-CEA mAb) on the graphene channel activated by EDC and Sulfo-NHS.The nano-dBSA film worked as a self-protecting layer of graphene to prevent surface contamination by lithographic processing.The improved GFETbiosensor exhibited good specificity and high sensitivity toward the target at an ultralow concentration of 337.58 fg mL-1.The electrical detection of the binding of CEA followed the Hill model for ligand–receptor interaction,indicating the negative binding cooperativity between CEA and anti-CEA mAb with a dissociation constant of 6.82×10-10M.The multifunctional nano-dBSA functionalization can confer a new function to graphene-like 2D nanomaterials and provide a promising bio-functionalization method for clinical application in biosensing,nanomedicine,and drug delivery.Lin Zhou Kun Wang Hao Sun Simin Zhao Xianfeng Chen Dahong Qian Hongju Mao Jianlong Zhao 2019Nano-Micro Letters2019,11,2:1
5Noble-metal-based high-entropy-alloy nanoparticles for electrocatalysis显示文摘Since the two seminal papers were published independently in 2004, high-entropy-alloys(HEAs) have been applied to structural and functional materials due to the enhanced mechanical properties, thermal stability, and electrical conductivity. In recent years, HEA nanoparticles(HEA-NPs) were paid much attention to in the field of catalysis for the promoted catalytic activity. Furthermore, the various ratios among the metal components and tunable bulk and surface structures enable HEAs have big room to enhance the catalytic performance. Especially, noble-metal-based HEAs displayed significantly improved performance in electrocatalysis, where the ‘core effects’ were employed to explain the superior catalytic activity. However, it is insufficient to understand the essential mechanism or further guide the design of electrocatalysts. Structure–property relationship should be disclosed for the catalysis on HEA-NPs to accelerate the process of seeking high effective and efficient electrocatalysts. Therefore, we summarized the recent advances of noble-metal-based HEA-NPs applied to electrocatalysis, such as hydrogen evolution reaction, oxygen evolution reaction, oxygen reduction reaction, methanol oxidation reaction, ethanol oxidation reaction, formic acid oxidation reaction, hydrogen oxidation reaction, carbon dioxide reduction reaction and nitrogen reduction reaction. For each electrocatalytic reaction, the reaction mechanism and catalyst structure were presented, and then the structure–property relationship was elaborated. The review begins with the development, concept, four ‘core effect’ and synthesis methods of HEAs. Next,the electrocatalytic reactions on noble-metal-based HEA-NPs are summarized and discussed independently. Lastly, the main views and difficulties pertaining to structure–property relationship for HEAs are discussed.Xianfeng Huang Guangxing Yang Shuang Li Hongjuan Wang Yonghai Cao Feng Peng Hao Yu 2022Journal of Energy Chemistry2022,31,5:1
6Synthesis, Electrical and Magnetic Properties of Fe304 Doped by Dy^3+显示文摘Wang Jingping Hao Xianfeng Lü Minfeng Liu Jianfen Xing Xianran Meng Jian 2006Journal of Rare Earths2006,24,4:1
7Aquatic Resource Conservation. The first Yangtze finless porpoise successfully born in captivity (4 pp)显示文摘Ding WANG Yujiang HAO Kexiong WANG Quingzhong ZHAO Daoquang CHEN Zhuo WEI Xianfeng ZHANG 2005Environmental Science and Pollution Research - International2005,,5:1
8Fabrication of Polyacrylonitrile/polypyrrole (PAN/PPy) composite nanofibres and nanospheres with core-shell structures by electrospinning 显示文摘Li Xianfeng Hao Xiufeng Yu Hubei 2008Materials Letters2008,62,89:1
9High-quality graphene grown directly on stainless steel meshes through CVD process for enhanced current collectors of supercapacitors显示文摘High-quality graphene coating was directly grown on stainless steel meshes via chemical vapor deposition process,during which the morphology of the stainless steel was transformed rugged.When the graphene-coated stainless steel meshes were applied as current collectors of supercapacitors,the changes of the appearance and the graphene coating improved the contact between stainless steel meshes and the active materials,thus benefiting the performance of the supercapacitors.Furthermore,this simple method can be used to prepare the enhanced current collectors for other energy storage devices.NING Jing HAO Long ZHANG XianFeng LIANG MingHui ZHI LinJie 2014Science China(Technological Sciences)2014,57,2:1
10Preparation of nanosilver panicles into sulfonated poly (ether ether ketone) (S-PEEK)nanostructures by electrospinning显示文摘Xianfeng Li Xiufeng Hao Hui Na 2007Materials Letters2007,61,2:1
11Chip-scale spontaneous quasi-phase matched second harmonic generation in a micro-racetrack resonator显示文摘In this paper,we demonstrate efficient spontaneous quasi-phase matched(SQPM)second harmonic generation(SHG)in a microracetrack resonator on X-cut thin film lithium niobate.Our approach does not involve poling,but exploits the anisotropy of the crystals to allow the phase-matching condition to be fulfilled spontaneously as the TE-polarized light circulates in a specifically designed racetrack resonator.In experiment,normalized on-chip conversion efficiencies of 1.01×10-4/W and 0.43×10-4/W are achieved by 37th-order and 111th-order SQPM,respectively.The configurable SQPM will benefit the application of nonlinear frequency conversion and quantum source generation in chip-scale integrated photonics compatible with standard CMOS fabrication processes.Tingge Yuan Jiangwei Wu Yi'an Liu Xiongshuo Yan Haowei Jiang Hao Li Zhaokang Liang Qiang Lin Yuping Chen Xianfeng Chen 2023Science China(Physics,Mechanics & Astronomy)2023,66,8:1
12A Modified Temperature-Vegetation Dryness Index(MTVDI)for Assessment of Surface Soil Moisture Based on MODIS Data显示文摘Spatio-temporal dynamic monitoring of soil moisture is highly important to management of agricultural and vegetation eco-systems.The temperature-vegetation dryness index based on the triangle or trapezoid method has been used widely in previous studies.However,most existing studies simply used linear regression to construct empirical models to fit the edges of the feature space.This requires extensive data from a vast study area,and may lead to subjective results.In this study,a Modified Temperature-Vegetation Dryness Index(MTVDI)was used to monitor surface soil moisture status using MODIS(Moderate-resolution Imaging Spectroradiometer)remote sensing data,in which the dry edge conditions were determined at the pixel scale based on surface energy balance.The MTVDI was validated by field measurements at 30 sites for 10 d and compared with the Temperature-Vegetation Dryness Index(TVDI).The results showed that the R^(2) for MTVDI and soil moisture obviously improved(0.45 for TVDI,0.69 for MTVDI).As for spatial changes,MTVDI can also better reflect the actual soil moisture condition than TVDI.As a result,MTVDI can be considered an effective method to monitor the spatio-temporal changes in surface soil moisture on a regional scale.WANG Hao LI Zongshan ZHANG Weijuan YE Xin LIU Xianfeng 2022Chinese Geographical Science2022,32,4:1
13Fine-tuning brassinosteroid biosynthesis via 3′UTR-dependent decay of CPD mRNA modulates wood formation in Populus显示文摘Brassinosteroids(BRs)are plant hormones that regulate wood formation in trees.Currently,little is known about the post-transcriptional regulation of BR synthesis.Here,we show that during wood formation,fine-tuning BR synthesis requires 3′UTR-dependent decay of Populus CONSTITUTIVE PHOTOMORPHOGENIC DWARF 1(PdCPD1).Overexpression of PdCPD1 or its 3′UTR fragment resulted in a significant increase of BR levels and inhibited secondary growth.In contrast,transgenic poplars repressing PdCPD13′UTR expression displayed moderate levels of BR and promoted wood formation.We show that the Populus GLYCINE-RICH RNA-BINDING PROTEIN1(PdGRP1)directly binds to a GU-rich element in 3′UTR of Pd CPD1,leading to its mRNA decay.We thus provide a post-transcriptional mechanism underlying BRs synthesis during wood formation,which may be useful for genetic manipulation of wood biomass in trees.Dian Wang Xiaoning Hao Li Xu Mengyan Zhao Congpeng Wang Xihao Yu Yingzhen Kong Mengzhu Lu Gongke Zhou Guohua Chai Xianfeng Tang 2023Journal of Integrative Plant Biology2023,65,8:0
14Space advanced technology demonstration satellite显示文摘The Space Advanced Technology demonstration satellite(SATech-01),a mission for low-cost space science and new technology experiments,organized by Chinese Academy of Sciences(CAS),was successfully launched into a Sun-synchronous orbit at an altitude of~500 km on July 27,2022,from the Jiuquan Satellite Launch Centre.Serving as an experimental platform for space science exploration and the demonstration of advanced common technologies in orbit,SATech-01 is equipped with 16 experimental payloads,including the solar upper transition region imager(SUTRI),the lobster eye imager for astronomy(LEIA),the high energy burst searcher(HEBS),and a High Precision Magnetic Field Measurement System based on a CPT Magnetometer(CPT).It also incorporates an imager with freeform optics,an integrated thermal imaging sensor,and a multi-functional integrated imager,etc.This paper provides an overview of SATech-01,including a technical description of the satellite and its scientific payloads,along with their on-orbit performance.ZHANG XiaoFeng CHEN Wen ZHU XiaoCheng MENG Na HE JunWang BI XingZi ZHANG YongHe SHI Qi LI Fei LIU Rui FENG ZhengGong LIU Liu LI JinSong WU HaiChen XU DongXiao LI TaiJie HUANG JiangJiang LIU Shuo LI TianTong YU XianSheng GAO Yang ZHOU Heng BAN HanYu ZHANG YanLi ZHANG YueTing YANG YingQuan HE Tao DUAN XuLiang CHEN Xin WANG YaMin SUN AnTai ZHANG KuoXiang SUN Ying WANG YaoBin FAN ChengCheng XIONG ShaoLin LI XinQiao WEN XiangYang LING ZhiXing SUN XiaoJin ZHANG Chen BAI XianYong WANG ZhanShan DENG YuanYong TIAN Hui YANG JianFeng XUE HongBo SANG Peng LIU JinGuo ZHENG HuiLong ZHU Xiang HE JianWu LI Hui XU LuXiang XU ShuYan CHEN WenWu LIU ZhenDong WANG ZhaoLi MAO XiangLong GAO Rong LI ZongXuan DING GuoPeng WANG XinYu DOU RunJiang WENG LuBin LUO Hao WANG YaPing LIANG XianFeng FANG ZiRuo 2024Science China(Technological Sciences)2024,67,1:0
15Cooperative control of perpendicular magnetic anisotropy via crystal structure and orientation in freestanding SrRuO_(3)membranes显示文摘Flexible magnetic materials with robust and controllable perpendicular magnetic anisotropy(PMA)are highly desirable for developing flexible high-performance spintronic devices.However,it is still challenge to fabricate PMA films on polymers directly.Here,we report a facile method for synthesizing single-crystal freestanding SrRuO_(3) membranes with controlled crystal structure and orientation using water-soluble Ca_(3-x)Sr_(x)Al_(2)O_(3)6 sacrificial layers.Through cooperative effect of crystal structure and orientation,flexible membranes reveal highly tunable magnetic anisotropy from in-plane to out-of-plane with a remarkable PMA energy of 7×10^(6) erg·cm^(−3).First-principle calculations reveal that the underlying mechanism of PMA modulation is intimately correlated with structure-controlled Ru 4d-orbital occupation,as well as spin-orbital matrix element differences,dependent on the crystal orientation.In addition,even after 10,000 bending cycles,the PMA keeps stable,indicating a robust magnetism reliability in the prepared films.This work provides a feasible approach to prepare the flexible oxide films with strong and controllable PMA.Zengxing Lu Yongjie Yang Lijie Wen Jiatai Feng Bin Lao Xuan Zheng Sheng Li Kenan Zhao Bingshan Cao Zeliang Ren Dongsheng Song Haifeng Du Yuanyuan Guo Zhicheng Zhong Xianfeng Hao Zhiming Wang Run-Wei Li 2022npj Flexible Electronics2022,6,1:0
16Extraction of Planting Information of Winter Wheat in a Province Based on GF-1/WFV Images显示文摘In order to explore the adaptability of domestic high-resolution GF-1 satellite images in the extraction of planting information of crops especially in a province,based on the 16-meter remote sensing images of a multi-spectral wide-spectrum camera( WFV) carried by the GF-1 satellite as well as land use type and field survey data of Shandong Province,the planting area and distribution regions of winter wheat in Shandong Province( the main producing area of winter wheat in China) in 2016 were extracted by decision tree classification method and supervised classification-maximum likelihood classification method,and the accuracy of the classification results was verified based on ground survey data and data published by the statistics bureau. The results showed that the method of taking the GF-1/WFV images as the main source of data,introducing multi-source information into the decision tree and supervised classification models,and then calculating the planting area of winter wheat in the province was feasible. The total accuracy of remote sensing interpretation of winter wheat in Shandong Province in 2016 reached 92. 1%,and Kappa coefficient was0. 806. The planting area of winter wheat extracted based on the remote sensing images in the province was slightly smaller than the area provided by the statistics department,and the extraction accuracy of the area was 93. 0%. Research indicates that GF-1/WFV images have great potential for development and application in remote sensing monitoring of planting information of crops in a province.Li Feng Qin Quan Wang Hao Hu Xianfeng Zhao Hong 2018Meteorological and Environmental Research2018,9,4:0
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