|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Commissioning progress of the FAST显示文摘The Five-hundred-meter Aperture Spherical radio Telescope(FAST) was completed with its main structure installed on September 25, 2016, after which it entered the commissioning phase. This paper aims to introduce the commissioning progress of the FAST over the past two years. To improve its operational reliability and ensure effective observation time, FAST has been equipped with a real-time information system for the active reflector system and hierarchical commissioning scheme for the feed support system, which ultimately achieves safe operation of the two systems. For meeting the high-performance indices, a highprecision measurement system was set up based on the effective control methods that were implemented for the active reflector system and feed support system. Since the commissioning of the FAST, a low-frequency ultra-wideband receiver and 19-beam1.05-1.45 GHz receiver have been mainly used. Telescope efficiency, pointing accuracy, and system noise temperature were completely tested and ultimately achieved the acceptance indices of the telescope. The FAST has been in the process of national acceptance preparations and has begun to search for pulsars. In the future, it will still strive to improve its capabilities and expand its application prospects. | Peng Jiang YouLing Yue HengQian Gan Rui Yao Hui Li GaoFeng Pan JingHai Sun DongJun Yu HongFei Liu NingYu Tang Lei Qian JiGuang Lu Jun Yan Bo Peng ShuXin Zhang QiMing Wang Qi Li Di Li | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，5： | 11 |
| 2 | he adaptive chirplet transform and its application in GPR target detection显示文摘探地雷达不仅能够探测金属目标体,而且能够探测非金属目标体,而成为UX0和地雷探测的一种重要的浅部地球物理方法。但是在地雷和UX0探测中,目标体埋藏深度浅,在探地雷达数据信噪比较低情况下,地表和土壤层的反射严重干扰对目标体的拾取。本文采用自适用Chirplet变换来消除地表层和土壤层变化的干扰,并在Radon—Wigner分布的基础上,采用自适用Chirplet变换来拾取目标体的信号。通过对实际探测实验数据应用证明,本方法处理结果比传统的偏移方法具有较高的信噪比,并能清晰地提取目标体信号。 | Zeng Zhaofa Wu Fengshou Huang Ling Liu Fengshan Sun Jiguang | 2009 | Applied Geophysics2009，6，2： | 8 |
| 3 | Proteomic analysis of the cerebrospinal fluid of Parkinson's disease patients显示文摘 | Jiguang Guo Zhongwu Sun Shifu Xiao Dong-ping Liu Guohua Jin Ersong Wang JiangningZhou Jiawei Zhou | 2009 | Cell Research2009，19，12： | 5 |
| 4 | A spectral projection method for transmission eigenvalues显示文摘We consider a nonlinear integral eigenvalue problem, which is a reformulation of the transmission eigenvalue problem arising in the inverse scattering theory. The boundary element method is employed for discretization, which leads to a generalized matrix eigenvalue problem. We propose a novel method based on the spectral projection. The method probes a given region on the complex plane using contour integrals and decides whether the region contains eigenvalue(s) or not. It is particularly suitable to test whether zero is an eigenvalue of the generalized eigenvalue problem, which in turn implies that the associated wavenumber is a transmission eigenvalue. Effectiveness and efficiency of the new method are demonstrated by numerical examples. | ZENG Fang SUN JiGuang XU LiWei | 2016 | Science China Mathematics2016，59，8： | 2 |
| 5 | Perturbation analysis of the matrix equationX =Q + AH(X-C)-1A显示文摘 | Sun Jiguang | | 0，，： | 1 |
| 6 | Character- ization and optical properties of (Gd1-x,Prx)202S nano - phosphors synthesized using a novel co - precipitation method 显示文摘 | Lian Jingbao Sun Xudong Li Jiguang | 2010 | Mater Chem Phys2010，122，： | 1 |
| 7 | Synthesis of nano-crystalline alumi-na powders from nano-metric ammonium aluminum carbonatehydroxide显示文摘 | Sun Xudong Li Jiguang | 2003 | Journal of the American Ceramic Society*2003，86，8： | 1 |
| 8 | Perturbation bounds for the Cholesky and QR factorization显示文摘 | SUN Jiguang | 1991 | BIT1991，31，： | 1 |
| 9 | Processing, microstructure and mechanical properties of biomedical magnesium with a specific two-layer structure显示文摘A novel magnesium based scaffold with a two-layer structure was synthesized by powder metallurgical process using salt particles as space holder. The outer layer of the scaffold shows an interconnected porous structure and the inner layer presents a compact structure reinforced by the salt particles. Such a specific structure is introduced primarily for the purpose of a better combination of biocompatibility and mechanical compatibility. Experimental results demonstrate that the structural features and mechanical properties of the magnesium based scaffold with a salt content of 30 wt% prepared by the current method are quite compatible with the cancellous bone. Such a novel Mg-based scaffold has the potential to act as degradable implants for bone substitute application. | Xue Zhang Xiaowu Li Jiguang Li Xudong Sun | 2013 | Progress in Natural Science:Materials International2013，23，2： | 1 |
| 10 | THE RECONSTRUCTION OF OBSTACLES IN A WAVEGUIDE USING FINITE ELEMENTS显示文摘 | Ruming Zhang Jiguang Sun | 2018 | Journal of Computational Mathematics2018，36，1： | 1 |
| 11 | On the variation of the spectrum of a normal matrix 显示文摘 | SUN Jiguang | 1996 | Linear Algebra Appl1996，246，： | 1 |
| 12 | Monodispersed colloidalspheres for uniform Y2O3:Eu3+red-phosphor particles and greatly en-hanced luminescence by simultaneous Gd3+doping显示文摘 | LI Jiguang LI Xiaodong SUN Xudong | 2008 | J Phys Chem C2008，112，11： | 1 |
| 13 | Eigenvalues and eigenvectors of a matrix dependent on several parameters显示文摘 | Sun Jiguang | 1985 | J Comput Math1985，3，： | 1 |
| 14 | Sensitivity analysis of multiple eigenvalues (I)显示文摘 | Sun Jiguang | 1988 | J Comput Math1988，6，： | 1 |
| 15 | A note on local behavior of multiple eigenvalues显示文摘 | Sun Jiguang | 1989 | SIAM J Matrix Anal Appl1989，10，： | 1 |
| 16 | Multiple eigenvalue sensitivity analysis显示文摘 | Sun Jiguang | 1990 | Linear Algebra Appl1990，，： | 1 |
| 17 | On the sensitivity of semisimple multiple eigenvalues显示文摘 | Sun Jiguang | 1992 | J Comput Math1992，10，： | 1 |
| 18 | Perturbation Bounds for the Cholesky and OR Factorization显示文摘 | SUN Jiguang | 1991 | BIT Numerical Mathematics1991，31，2： | 1 |
| 19 | Synthesis and Sintering Behavior of a Nanocrystalline u-Alumina Powder 显示文摘 | Li Jiguang Sun Xudong | 2000 | Acta Mater2000，48，12： | 1 |
| 20 | Does a large group of pedestrians follow the evacuation signs?An experimental study显示文摘Guidance signs are generally considered to be key in improving the efficiency of emergency building evacuations.During a group evacuation,how obedient is the group to the evacuation signs?Would different evacuation signs affect the judgment of evacuated groups?Evacuation experiments were conducted to explore the influence of evacuation signs on the path selection of evacuation groups.Fourteen classes with 514 participants participated in these experiments,and each class participated in one experiment.Six classes conducted the experiments without guidance signs,and the rest conducted the experiments with guidance signs.The influences of the sign’s color(red and green),pattern(arrow and running man),and status(whether it flashes)on the route selection were studied.The results show that(1)the evacuation signs significantly affect the route choices of the evacuated groups.(2)The herding effect during the evacuation process does not influence the guiding effect of evacuation signs.(3)Evacuation signs of different colors and patterns have different guiding effects,and the Green running man sign has the best effect.(4)The constant bright,or flashing evacuation sign corresponding to the flashing Red running man has a significant impact on the route selection of the evacuated group.The results may provide a reference for improving the emergency evacuation guidance model of office buildings or other buildings with a large flow of people and optimize ideas for the design and layout of emergency evacuation signs. | Jiguang Shi Dapeng Dong Ning Ding Chang Sun Zhenyu Fan | 2022 | Journal of Safety Science and Resilience2022，3，4： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员