Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Qizhong LIU"'
Autor:
Huixia ZHAO, Pengkun WANG, Hongjun CAI, Lina HE, Qizhong LIU, Feng YAN, Jianhua LI, Jiankun MA, Jianling ZHONG, Chaochao LV, Yu JIANG, Qingpei LIU, Li LI, Jian ZHANG, Weitao YANG, Wei ZHANG, Zhenxing WANG, Peng WANG, Wenjie HUANG, Qingjie MA, Youhua SHEN, Zhibin TIAN, Meihua LUN, Mei YU
Publikováno v:
Zhongguo shuxue zazhi, Vol 35, Iss 9, Pp 947-949 (2022)
Objective To study the annual financial expenditure in blood stations with different scales, and to establish the regression equation between blood collection units and total expenditure. Methods The annual total expenditure, the per capita cost of s
Externí odkaz:
https://doaj.org/article/edda572c48fc45b6801c6f1e3a040066
Autor:
Shangyun YING, Qunhong LU, Qiang FU, Yudong DAI, Qizhong LIU, Wanli CHENG, Yading TANG, Yilun ZHAO
Publikováno v:
Zhongguo shuxue zazhi, Vol 35, Iss 2, Pp 206-208 (2022)
Objective To analyze the implementation and problems in the process of the first policy of serious illness benefits for voluntary blood donors in China, therefore provide reference for other provinces and cities to formulate care policies for volunta
Externí odkaz:
https://doaj.org/article/293ba411abbe46ccbde4e4655300a745
Publikováno v:
PIERS Online. 4:336-340
The electromagnetic interference of the antenna system on the satellite is analyzed by the approximate algorithm-Uniform Geometrical Theory of Difiraction (UTD), associated with China Academy of Space Technology pre-research projects. The radiation p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea012d89dfd817a56d06d25829efc2ea
https://doi.org/10.2529/piers071224030613
https://doi.org/10.2529/piers071224030613
Publikováno v:
Journal of Optics A: Pure and Applied Optics. 8:93-99
This paper aims to propose an equation for calculating the distribution of light scattered when a collimated beam is incident upon a spherical air bubble in water. As it neglects the attenuation factor G, the formula is much simpler than that of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d41f4df19282f696a4d31a498c7623cc
https://doi.org/10.1088/1464-4258/8/1/015
https://doi.org/10.1088/1464-4258/8/1/015
Publikováno v:
Journal of Electronics (China). 21:342-345
This letter investigates an efficient design procedure integrating the Genetic Algorithm (GA) with the Finite Difference Time Domain (FDTD) for the fast optimal design of Smart Antenna Arrays (SAA). The FDTD is used to analyze SAA with mutual couplin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17541c5ee8a8a7387bfe178c775b7d6a
https://doi.org/10.1007/bf02687892
https://doi.org/10.1007/bf02687892
Publikováno v:
Journal of Electronics (China). 18:359-362
A novel method for precise measurement of complex reflection coefficient using a four-port reflectometer is presented. First, three new complex system constants are introduced, which depend only on the scattering parameters of the four-port reflectom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77d47f6fed3ba381c05de110fcacf27b
https://doi.org/10.1007/s11767-001-0052-1
https://doi.org/10.1007/s11767-001-0052-1
Publikováno v:
Journal of Electronics (China). 18:285-288
A hybrid technique to compute the surface-wave scattering of electrically large 2-D bodies with cracks by combining the current-based hybrid method and the finite element method is presented in this letter. Based on the equivalence theorem, the field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a361aefeb83d802b4295c1af4d0a49a
https://doi.org/10.1007/s11767-001-0041-4
https://doi.org/10.1007/s11767-001-0041-4
Autor:
Guohui Zeng, Qizhong Liu
Publikováno v:
ISCID (2)
An intelligent fuzzy method for maximum power point tracking (MPPT) of photovoltaic (PV) systems is presented in this paper. In this method, fuzzy inference process can be finished by an equation with an adaptive factor instead of fuzzy rules lookup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eca6eaa8d962b3cd174b5f54acc38fbb
https://doi.org/10.1109/iscid.2009.235
https://doi.org/10.1109/iscid.2009.235
Autor:
Qizhong Liu, Wanqing Song
Publikováno v:
Computational Science and Its Applications – ICCSA 2009 ISBN: 9783642024535
ICCSA (1)
ICCSA (1)
Some weak cycle singular signals are very important for condition monitoring, fault forecast and medicine diagnosis. However, the weak singular signals are often inundate into strong noises. A novel engineering method is proposed for detecting weak c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da420401c100f2b7da98f708a651567c
https://doi.org/10.1007/978-3-642-02454-2_51
https://doi.org/10.1007/978-3-642-02454-2_51
Autor:
Long Yu, Min Xia, Heqing Ye, Wei Li, Qizhong Liu, Dan Tan, Kecheng Yang, Xiaohui Zhang, Xianhua Lei, Xiaolei Deng
Publikováno v:
SPIE Proceedings.
A bubble in water is an example of a scatter for which the refractive index of the core (gas) is less than that of the surroundings. So bubbles in water exhibit scattering phenomena which differs significantly from those for drops in air or solid par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::119c9845a350c706f3865c4a1ac10646
https://doi.org/10.1117/12.576501
https://doi.org/10.1117/12.576501