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[期刊论文] 作者:, 来源:计算机科学 年份:2022
Knuth-Yao方法是一种基于二元概率矩阵的采样方法,对其进行简单改进可以实现常数运行时间,以抵御计时攻击,但极大地牺牲了采样速度。...利用二元离散高斯分布的概率矩阵的移位性质,简化了Knuth-Yao方法的实现过程,减少了概率矩阵的存储空间。基于对Knuth-Yao方法中的概率矩阵...
[期刊论文] 作者:姚雅明,王洪霞,解力伟,徐世刚,孙同斌,姚泊生,张艳彬, 来源:城镇供水 年份:2022
泵站能效预知理论,利用机电设备效率曲线的相似性和凹性,结合极值原理和图形法(称为量子优化方法),证明了Yao定理1和Yao定理2,并给出Yao曲线。...
[期刊论文] 作者:Wei Yao, 来源:北京周报(英文版) 年份:2022
An event hosted in Beijing gave visitors the opportunity to learn more about the Olympic Winter Games and try their (virtual) glove at a variety of icy sports....
[期刊论文] 作者:Wei Yao, 来源:北京周报(英文版) 年份:2022
A recent exhibition illustratedthe evolution of Nujiang Lisu Autonomous Prefecture in Yunnan Province, right near the China-Myanmar border. A land of towering mountains and gaping ravines, the region\'slocal culture is vividly colored by a ......
[期刊论文] 作者:Wei Yao, 来源:北京周报(英文版) 年份:2022
An exhibition entitled The Disappearing World opened to the public at the Beijing Museum of Natural History on March 8.rnLondon-based photographer Tim Flach is known for his exceptional and unconventional shots that capture the beauty and p......
[期刊论文] 作者:Wei Yao, 来源:北京周报(英文版) 年份:2022
An ongoing exhibition at the National Museum of China in Beijing themed on the Yangtze River makes visitors feel like they\'re embarking on a journey through time and space....
[期刊论文] 作者:Wei Yao, 来源:北京周报(英文版) 年份:2022
According to the Chinese lunar calendar, the first three months of the new year, which starts on February 1 this year, mark the whole of spring-time at different stages. Spring season commences in the second month, allowing people to ventur......
[期刊论文] 作者:Wei Yao, 来源:北京周报(英文版) 年份:2022
Following three years of renovations, the China National Arts and Crafts Museum and China Intangible Cultural Heritage Museum, the first national-level venue of its kind in the country, recently opened to the public....
[期刊论文] 作者:Wei Yao, 来源:北京周报(英文版) 年份:2022
[期刊论文] 作者:Wei Yao, 来源:北京周报(英文版) 年份:2022
Nursed back to health, a sparrow hawk and a peregrine, both under second-class state protection,were released into the wild at the Yeyahu (Wild Duck Lake) National Wetland Nature Reserve in the Chinese capital\'s Yanqing District by the Bei......
[期刊论文] 作者:Wei Yao, 来源:北京周报(英文版) 年份:2022
Shall I compare thee to an April\'s day? As the weather slowly warms up in April, seas of blossoming spring flowers capture the Beijing gaze,turning the capital into a tableau coming alive through pulsating colors....
[期刊论文] 作者:Yuanchun ZHANG,Jianhua SUN,Ruyi YANG,Ruoyun MA, 来源:大气科学进展(英文版) 年份:2022
Based on the previous statistical analysis of mesoscale convective systems (MCSs) over the second-step terrain along Yangtze-Huaihe River Valley, eight representative long-lived eastward-propagating MCSs are selected for model-based sensiti......
[期刊论文] 作者:Yao HA,Zhong ZHONG,Haikun ZHAO,Yimin ZHU,Yao YAO,Yijia HU, 来源:大气科学进展(英文版) 年份:2022
An observational study focusing on the contribution of tropical cyclones (TCs) that form over the western North Pacific (WNP) to the synoptic-scale transient eddy activity (STEA) over the North Pacific during the boreal autumn and early win......
[期刊论文] 作者:Jun Li,Dao-Xin Yao, 来源:中国物理B(英文版) 年份:2022
This article reviews the basic theoretical aspects of octagraphene,an one-atom-thick allotrope of carbon,with un-usual two-dimensional (2D) Fermi nesting,hoping to contribute to the new family of quantum materials.Octagraphene has an almost......
[期刊论文] 作者:Jie YAO,Guoxing JI, 来源:数学研究及应用 年份:2022
Let H be a complex Hilbert space and B(H) the algebra of all bounded linear operators on H.An operator A is called the truncation of B in B(H) if A =PABPA*,where PA and PA* denote projections onto the closures of R(A) and R(A*),respectively......
[期刊论文] 作者:Yong-Gang Yao,Yun Zhang, 来源:动物学研究 年份:2022
With the long-term support of every friend and contributor,Zoological Research(ZR)has continued to move forward over the past year,with impressive achievements.Notably,ZR attained an impact factor of 4.56(JCR Q1)and CiteScore of 4.6 in mid-......
[期刊论文] 作者:Guokun DAI,Chunxiang LI,Zhe HAN,Dehai LUO,Yao YAO, 来源:大气科学进展(英文版) 年份:2022
Three extreme cold events invaded China during the early winter period between December 2020 to mid-January 2021 and caused drastic temperature drops, setting new low-temperature records at many stations during 6?8 January 2021. These cold ......
[期刊论文] 作者:Yao YAO,Wenqi ZHANG,Dehai LUO,Linhao ZHONG,Lin PEI, 来源:大气科学进展(英文版) 年份:2022
Starting in mid-November, China was hit by several cold events during the early winter of 2020/21. The lowest temperature observed at Beijing station on 7 January reached ?19.6°C. In this paper, we show that the outbreak of the record-brea......
[期刊论文] 作者:Linhao ZHONG,Lijuan HUA,Zhaohui GONG,Yao YAO,Lin MU, 来源:大气科学进展(英文版) 年份:2022
Moisture contribution and transport pathways for Central Asia (CA) are quantitatively examined using the Lagrangian water cycle model based on reanalysis and observational data to explain the precipitation seasonality and the moisture trans......
[期刊论文] 作者:李秭娆, 黄岚, 赵文霞, 姚艳霞, 来源:null 年份:2022
为调查其寄生性天敌,本文通过采集受害枝条和室内饲养,获得了寄生蜂标本,经形态学观察与DNA序列分析,确定其为食蚧蚜小蜂新种,将其命名为天山食蚧蚜小蜂Coccophagus tianshanensis Li&Yao...
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