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| 1 | Mission overview and key technologies of the first Mars probe of China显示文摘The first Chinese Mars exploration will fulfill the goals of'orbiting,analyzes landing and roving'in one mission.This paper briefly describes the process of international Mars and exploration engineering profile,and the development of Chinese and Mars exploration.It focuses on introducing design the scientific probe,significance difficulties of Mars exploration,provides the an overview descent of the system of as the including the flight the preliminary selection of the landing site,entry,and the landing EDL(also known and EDL)structure process.and Four types of key technologies,including telecommunications,the autonomous the control,process,its mechanism,are detailed in this paper.Finally,paper highlights expected scientific and engineering results of the mission. | YE PeiJian SUN ZeZhou RAO Wei MENG LinZhi | 2017 | Science China(Technological Sciences)2017，60，5： | 34 |
| 2 | High-Resolution Genome-wide Association Study Identifies Genomic Regions and Candidate Genes for Important Agronomic Traits in Wheat显示文摘Wheat(Triticum aestivum)is a major staple food crop worldwide.Genetic dissection of important agronomic traits is essential for continuous improvement of wheat yield to meet the demand of the world's growing population.We conducted a large-scale genome-wide association study(GWAS)using a panel of 768 wheat cultivars that were genotyped with 327609 single-nucleotide polymorphisms generated by genotyping-by-sequencing and detected 395 quantitative trait loci(QTLs)for 12 traits under 7 environments.Among them,273 QTLs were delimited to≤1.0-Mb intervals and 7 of them are either known genes(Rht-D,Vrn-B1,and Vrn-D1)that have been cloned or known QTLs(TaGA2ox8,APO1,TaSus1-7B,and Rht12)that were previously mapped.Eight putative candidate genes were identified for three QTLs that enhance spike seed setting and grain size using gene expression data and were validated in three bi-parental populations.Protein sequence analysis identified 33 putative wheat orthologs that have high identity with rice genes in QTLs affecting similar traits.Large r^2 values for additive effects observed among the QTLs for most traits indicated that the phenotypes of these identified QTLs were highly predictable.Results from this study demonstrated that significantly increasing GWAS population size and marker density greatly improves detection and identification of candidate genes underlying a QTL,solidifying the foundation for large-scale QTL fine mapping,candidate gene validation,and developing functional markers for genomics-based breeding in wheat. | Yunlong Pang Chunxia Liu Danfeng Wang Paul St.Amand Amy Bernardo Wenhui Li Fang He Linzhi Li Liming Wang Xiufang Yuan Lei Dong Yu Su Huirui Zhang Meng Zhao Yunlong Liangi Hongze Jia Xitong Shen Yue Lu Hongming Jiang Yuye Wu Anfei Li Honggang Wang Lingrang Kong Guihua Bai Shubing Liu | 2020 | Molecular Plant2020，13，9： | 8 |
| 3 | Two piezo- electric circular cylindrical inclusions in the infinite piezo- electric medium显示文摘 | WU Linzhi CHEN Jian MENG Qingguo | 2000 | International Journal of Engineering Science2000，38，： | 1 |
| 4 | Fuzzy clusteringwith a modified MRF energy function for change detection insynthetic aperture radar images 显示文摘 | Gong Maoguo Su Linzhi Jia Meng | 2014 | IEEE Trans on FuzzySystem2014，22，1： | 1 |
| 5 | Detecting changes ofthe Yellow River estuary via SAR images based on local fit-search model and kernel-induced graph cuts 显示文摘 | Gong Maoguo Jia Meng Su Linzhi | 2014 | International Journal of Remote Sensing2014，35，1112： | 1 |
| 6 | Technological Achievements of Chang'e 2 and Considerations for China's Deep Space Exploration显示文摘(Continued)Extended Mission Phase During the six-month design life,Chang’e 2 successfully accomplished the planned engineering demonstration and scientific exploration missions.Thanks to the launch zero window,stable operation and precise control,the probe saved a lot of propellant.The remaining propellant weighed 520kg(plus capacity margin).At the same time,the probe was in good condition.According to the concept of'improving capability more quickly | Ye Peijian Huang Jiangchuan Zhang Tingxin Meng Linzhi | 2013 | Aerospace China2013，14，3： | 1 |
| 7 | Numerical simulations of gas-particle flow behavior created by low-level rotary-winged aircraft flight over particle bed显示文摘The aerodynamics of gas-particle suspensions is simulated as an Euler-Euler two-fluid model in a revolving rotor over a particle bed. The interactions of collisions between the blade and particles and particle-particle interactions are modeled using the kinetic theory of granular flow(KTGF). The gas turbulence induced by the rotation of the rotor is modeled using the kg-εg model. The flow field of a revolving rotor is simulated using the multiple reference frame(MRF) method. The distributions of velocities, volume fractions, and gas pressure are predicted while the aircraft hovers at different altitudes.The gas pressure decreases from the hub to the tip of the blade, and it is higher at the pressure side than that at the suction side of the rotor. The turbulent kinetic energy of the gas increases toward the blade tip. The volume fraction of particles decreases as the hovering altitude increases. The simulated pressure coefficient is compared with that in experimental measurements. | Xiaoxue JIANG Yingqiao XU Chuang WANG Linzhi MENG Huilin LU | 2019 | Applied Mathematics and Mechanics(English Edition)2019，40，3： | 1 |
| 8 | Near-Earth Asteroid Surveillance Constellation in the Sun-Venus Three-Body System显示文摘The threat of potential hazardous near-Earth asteroid(PHA)impact on Earth is increasingly attracting public attention.Monitoring and early warning of those PHAs are the premise of planetary defense.In this paper,we proposed a novel concept of surveillance constellation of heterogeneous wide-field near-Earth asteroid(NEA)surveyors(CROWN),in which six spacebased surveyors are loosely deployed in Venus-like orbits to detect the NEAs along the direction of the sunlight.First,the concept and overall design of the NEA surveillance constellation are discussed.Second,the transfer and deployment trajectory of the surveyors are investigated based on the Sun-Venus three-body system.The Sun-Venus libration orbit is taken as the parking orbit,and its stable invariant manifolds are used to reduce the deployment fuel consumption.Next,the detection performance of the CROWN was evaluated considering constraints of apparent visual magnitude and field of view.The NEA orbit determination(OD)using the CROWN was studied and verified.Simulation results show that the CROWN can be deployed with a total velocity increment of approximately 300 m/s.During the 5 years of observation,99.8%of PHAs can be detected and the OD precision is better than a single-surveyor system.This paper can provide a reference for the construction of future asteroid defense system. | Xingyu Zhou Xiangyu Li Zhuoxi Huo Linzhi Meng Jiangchuan Huang | 2022 | Space(Science & Technology)2022，，1： | 0 |
| 9 | Characteristics and close-range exploration methods of near- Earth asteroid 2016HO_(3)显示文摘The characteristics of asteroids are vital parameters for planning asteroid exploration missions.These characteristics have been explored in close range for some typical asteroids,and are summarized in the article.This allows estimates of the characteristics of asteroid 2016HO_(3),the target of the first Chinese asteroid exploration mission,Tianwen 2.We obtain 80 characteristic parameters in 9 categories and analyze their impacts on the mission.By comparing three close-range exploration modes,we provide advantages and disadvantages of each,and propose suitable methods for the exploration of 2016HO_(3).Owing to the weak gravity and small size of 2016HO_(3),a combination of multiple hovering positions and active orbiting is recommended for scientific exploration. | He Zhang Fei Li Linzhi Meng Fuming Zeng Xiaoyu Jia Yu’ang Liu | 2024 | Astronomical Techniques and Instruments2024，1，1： | 0 |
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