APPROXIMATE

作品数:556被引量:745H指数:10
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相关领域:理学更多>>
相关作者:阮宇肖国生李俊清吕佳杨维更多>>
相关机构:吉林大学南京航空航天大学浙江大学合肥工业大学更多>>
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相关基金:国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家高技术研究发展计划更多>>
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Phase transition thermosensitive photocatalytic hydrogel for enhanced uranium extraction
《Science Bulletin》2025年第1期4-6,共3页Jiacheng Zhang Yihui Yuan Ning Wang 
supported by the National Natural Science Foundation of China(U2167220 and U23A20104)。
As a clean energy source,nuclear energy is crucial for realizing carbon neutralization and the construction of many nuclear plants is underway[1].According to an estimate by the International Atomic Energy Agency,the ...
关键词:APPROXIMATE transition HYDROGEL 
Optimum temperature for photosynthesis:from leaf-to ecosystem-scale被引量:5
《Science Bulletin》2020年第8期601-604,M0003,共5页Yongwen Liu 
supported by the National Natural Science Foundation of China(41701089);the Youth Innovation Promotion Association,Chinese Academy of Sciences,China(2019074).
Terrestrial plants uptake carbon dioxide from the atmosphere by photosynthetic carbon dioxide assimilation.This flux,known as gross primary productivity,is the largest carbon dioxide flux between the atmosphere and th...
关键词:dioxide APPROXIMATE SULFIDE 
Experimental Gaussian Boson sampling被引量:3
《Science Bulletin》2019年第8期511-515,共5页Han-Sen Zhong Li-Chao Peng Yuan Li Yi Hu Wei Li Jian Qin Dian Wu Weijun Zhang Hao Li Lu Zhang Zhen Wang Lixing You Xiao Jiang Li Li Nai-Le Liu Jonathan P.Dowling Chao-Yang Lu Jian-Wei Pan 
supported by the National Natural Science Foundation of China (91836303, 11674308, and 11525419);the Chinese Academy of Sciences, the National Fundamental Research Program (2018YFA0306100);the Anhui Initiative in Quantum Information Technologies
Gaussian Boson sampling(GBS) provides a highly efficient approach to make use of squeezed states from parametric down-conversion to solve a classically hard-to-solve sampling problem. The GBS protocol not only signifi...
关键词:QUANTUM information BOSON sampling GAUSSIAN BOSON sampling SQUEEZED state QUANTUM ADVANTAGE QUANTUM APPROXIMATE optimization 
Density field measurement and approximate reconstruction of supersonic mixing layer被引量:7
《Chinese Science Bulletin》2010年第19期2004-2009,共6页ZHAO YuXin YI ShiHe TIAN LiFeng HE Lin CHENG ZhongYu 
supported by the National Natural Science Foundation of China (10672178)
The density field measurement of supersonic mixing layer based on the nanoparticle-based planar laser scattering method was studied.The calibration of experimental images was analyzed,and the relation between tracer p...
关键词:超音速混合层 密度场 测量 超声速 图像校准 实验校准 三维结构 激光散射法 
Approximate design of optimal tracking controller for time-delay systems被引量:6
《Chinese Science Bulletin》2006年第17期2158-2163,共6页TANG Gongyou LI Chao ZHAO Yandong 
This work was supported by the National Natural Science Foundation of China (Grant No. 60574023);the Natural Science Foundation of Shandong Province (Grant No. Z2005G01);the Natural Science Foundation of Qingdao City (Grant No. 05-1-JC-94).
Successive approximate design of the optimal tracking controller for linear systems with time-delay is developed. By applying the successive approximation theory of differential equations, the two-point boundary value...
关键词:线性系统 延时系统 最佳跟踪控制 逐次近似计算法 TPBV 边界值 
An approximate analytic model for flow through capillary tubes被引量:3
《Chinese Science Bulletin》1999年第7期668-670,共3页Guoliang Ding Chunlu Zhang Hao Li Zhijiu Chen 
An analytic model for working fluids flowing through capillary tubes has been established with the approximate integral method. All the possible flow regimes in the capillary tubes,including subcooled, two-phase and s...
关键词:CAPILLARY TUBE model refrigerant. 
A GUESS ABOUT POSITIVE APPROXIMATION
《Chinese Science Bulletin》1990年第21期1763-1764,共2页李绍宽 
In [1], P. R. Halmos proposed the following guess: for Hilbert operator A=B+ iC, the inequality(*) holds. Here δ(A) denotes the distance from A to the set of positive operators in the Hilbert space H. And he
关键词:POSITIVE OPERATORS numerical RANGE approximate. 
BOMBIERI'S THEOREM IN SHORT INTERVALS
《Chinese Science Bulletin》1988年第3期261-,共1页展涛 
The problem of finding a result analogous to (1) for short intervals has been investigated by many authors. Using Heath-Brown’s identity and the approximate functional equation for Dirichlet L-functions, A. Perelli, ...
关键词:DIRICHLET analogous APPROXIMATE HEATH finding ARBITRARY 了万 
AN APPROXIMATE ALGORITHM OF OPTIMAL DIGIT-GROUPED PARTITION OF SEQUENCES
《Chinese Science Bulletin》1987年第14期942-946,共5页许国志 陈庆华 刘继勇 
In this note we give a rather good approximate algorithm of optimal digit-grouped partition of sequences, showing that the optimal complete digit-grouped partition number of a dumbbell type sequence S is equal to its ...
关键词:PARTITION DIGIT hence APPROXIMATE grouped visualization satisfy POLYNOMIAL SALESMAN showing 
APPROXIMATE THERMODYNAMIC ANALYSIS OF PRACTICAL STEAM INJECTION GAS TURBINE CYCLE
《Chinese Science Bulletin》1986年第21期1512-,共1页蔡睿贤 张世铮 逯根寿 林汝谋 
Project supported by the Science Fund of Academia Sinica
The idea of steam injection gas turbine cycle system is to inject steam generated by gas turbine exhaust gas into the gas turbine itself in order to raise its specific output and efficiency. The main advantages of thi...
关键词:steam itself EXPENDITURE RAISE TURBINE expensive drawback EXHAUST cycle BOILER 
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