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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:杨通胜,热娜古丽·阿不都热合曼,杨倩婷,孙雪峰,楚刚辉, 来源:无机化学学报 年份:2022
采用一步水热法,通过In3+的掺杂,获得了尺寸可控的近红外(NIR)发光ZGO∶1.5%Cr,xIn(Zn1.4Ga1.97-2x04∶1.5%Cr,xIn,x=0%、0.1%、0.2%、0.3%、0.4...%、0.5%)长余辉纳米颗粒(PLNPs),考察了In13+掺杂量对ZGO∶1.5%Cr,xIn PLNPs尺寸大小、余辉发光性能以及晶体结构的影响.In3+的掺杂不仅能有效控制ZGO∶ 1.5%Cr,...xIn PLNPs尺寸,还可以增强发光和余辉时间.结果表明,当In3+掺杂量为0.2%时,ZGO∶1.5...
[期刊论文] 作者:o,Kate Hardwick,Yao Min Zheng,Hua Wei Wan,Ming Ma,Nurbay Abudusalih,Ying Hai,Zhen Pu,Jiang Shan Lai,Zhan, 来源:寒旱区科学(英文版) 年份:2022
With a detailed flora and fauna distribution database of Xin...
[期刊论文] 作者:Yarong Xia,Ruoxia Yao,Xiangpeng Xin, 来源:中国物理B(英文版) 年份:2022
Starting from local coupled Hirota equations,we provide a reverse space-time nonlocal Hirota equation by the sym-metry reduction method known as the Ablowitz-Kaup-Newell-Segur scattering problem.The Lax integrability of the nonlocal Hirota ......
[期刊论文] 作者:GAO XU-WEN, SUN XIAO-BO, YAO XIN, 来源:中国预防兽医学报 年份:2022
<正>牛病毒性腹泻病毒(BVDV)属黄病毒科、瘟病毒属成员,为单股正链RNA病毒,BVDV基因组约12.3 kb,共编码4种结构蛋白和8种非结构蛋白。根据病毒感染后的致细胞病变效应(CPE),将BVDV又分为非致细胞病变型(NCP)和致细胞病变型(CP)两种生物表型。BVDV感染主要引起牛病毒性腹泻-黏......
[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:Ji Jing, 来源:北京周报(英文版) 年份:2022
Lai Xin , a college student in Jiangxi Province, now rarely visits relatives and friends with her parents...
[期刊论文] 作者:Yafei Xin,Tongyao Jiang,Zhiyuan Yao,Shuqiang Li, 来源:动物分类学报 年份:2022
Twenty new species of extinct spiders belonging to 10 genera in five families from Late Cretaceous Kachin amber are reported.One new genus,Triangulum Jiang & Li,gen.nov.,of the family Theridiidae Sundevall,1833 was established with T.thutai......
[期刊论文] 作者:Yujun Liu,Kai Yang,Mingjie Zhang,Shi Li,Fei Gao,Qiangling Duan,Jinhua Sun,Qingsong Wang, 来源:能源化学 年份:2022
battery (LIB) fires remains a challenge.The present work investigates the use of various inhibitor doses (Xin...
[期刊论文] 作者:Xin LIU,Zhen Xin LIU, 来源:数学学报(英文版) 年份:2022
In this paper,we use a unified framework to study Poisson stable(including stationary,periodic,quasi-periodic,almost periodic,almost automorphic,Birkhoff recurrent,almost recurrent in the sense of Bebutov,Levitan almost periodic,pseudo-peri......
[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:XIN Liangjie, 来源:地理学报(英文版) 年份:2022
This paper studied the fertilizer rate(FR),fertilizer use efficiency(FUE)and fertilizer overuse rate(FOR)of rice,corn and wheat in China from 1998 to 2018 and briefly analysed the reasons why farmers were willing to apply more fertilizers.(......
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