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[期刊论文] 作者:Editorial Department of Agricultural Scienceu0026Technology, 来源:农业科学与技术:英文版 年份:2021
At 13:07 on May 22th,2021,Yuan Longping,“The Father of Hybrid Rice”,“Academician of Chinese Academy of...Engineering” and winner of the “Medal of the Republic”,passed away in Changsha at the age of 91.Academician Yuan...
[期刊论文] 作者:By Matteo Giovannini, 来源:Beijing Review 年份:2021
The People’s Bank of China has been stepping up promotion of the digital yuan, a so-called Central Bank...
[期刊论文] 作者:Department of Agricultural Science&Technology, 来源:农业科学与技术(英文版) 年份:2021
Yuan Longping. “The Father of Hybrid Rice”....
[期刊论文] 作者:Matteo Giovannini, 来源:北京周报:英文版 年份:2021
The Peoples Bank of China has been stepping up promotion of the digital yuan,a so-called Central Bank...
[期刊论文] 作者:LIU Yutong,DU Wenjun, 来源:景观研究:英文版 年份:2021
Through sorting out and analyzing the decriptions about Qian Yuan in poems and literatures,the paper...
[期刊论文] 作者:Yuan Yuan, 来源:北京周报:英文版 年份:2021
community property with her husband,a housewife in Fujian Province received an additional 550,000 yuan...
[期刊论文] 作者:By Yuan Yuan, 来源:Beijing Review 年份:2021
community property with her husband, a housewife in Fujian Province received an additional 550,000 yuan...
[期刊论文] 作者:By Yuan Yuan, 来源:Beijing Review 年份:2021
first few years after Abudullah Urashim left his hometown in Xinjiang Uygur Autonomous Region, “2 yuan...
[期刊论文] 作者:Zhao Xinhua, 来源:中国纺织:英文版 年份:2021
According to preliminary calculations,the GDP in 2020 was 101,598.6 billion yuan,an increase of 2.3 percent...
[期刊论文] 作者:, 来源:中国纺织(英文版) 年份:2021
According to preliminary calculations, the GDP in 2020 was 101,598.6 billion yuan, an increase of 2.3...
[期刊论文] 作者:张伟,毛北行, 来源:数学的实践与认识 年份:2021
研究超混沌分数阶Bao系统自适应滑模同步,设计出分数阶滑模函数、适应规则和控制器,取得超混沌分数阶Bao系统自适应滑模同步的充分条件,文末用MATLAB数值仿真验证了所得结论....
[期刊论文] 作者:Yuan Yuan, 来源:北京周报:英文版 年份:2021
the first few years after Abudullah Urashim left his hometown in Xinjiang Uygur Autonomous Region,“2 yuan...
[期刊论文] 作者:by Zhao Xinhua, 来源:China Textile 年份:2021
According to preliminary calculations, the GDP in 2020 was 101,598.6 billion yuan, an increase of 2.3...
[期刊论文] 作者:盛光晔,杨文,赵令,廖直友,吴婷, 来源:连铸 年份:2021
为探究非反应性组分BaO对铝酸盐熔渣微观结构稳定性及宏观性能的影响机制,综合半球点熔点仪、旋转黏度计、四探针法电导率测定仪、红外光谱分析仪,研究了 BaO对铝酸盐熔渣(w(...
[期刊论文] 作者:Xia Yuanyuan, 来源:中国与非洲(英文版) 年份:2021
Chinese scientist Yuan Longping, renowned for developing the first hybrid rice strains that have pulled...
[期刊论文] 作者:彭志钢,袁坚,杜晓欧,张茂森,薛瑞峰,史连莹, 来源:玻璃搪瓷与眼镜 年份:2021
通过浇铸法制备了块状TiO2-BaO-ZnO-SiO2-R2O晶质玻璃。...采用拉曼光谱研究了TiO2/BaO对晶质玻璃结构的影响,采用UV-Vis分光光度计和阿贝折射仪测定了玻璃的透过率和折射率,用干福喜法计算了平均色散,用维氏硬度计测试了玻璃的硬度。...研究结果表明:随TiO2/BaO比例的增大,可见光部分透过率由88.6%逐渐下降到85.2%;折射率由1.672升高到1.698;玻璃色散值呈线性递增...
[期刊论文] 作者:信彩丽,骞少阳,王兵兵,马利特, 来源:建筑玻璃与工业玻璃 年份:2021
在CaO-BaO-Al2O3-SiO2玻璃体系中,分别加入6%(质量分数,下同)、12%、18%、24%MgO,同时BaO含量相应减少,经熔融、水淬、球磨后过筛制得玻璃粉。...
[期刊论文] 作者:Xiao-Cong(Larry)Yuan,AnatolyZayats, 来源:AdvancedPhotonics 年份:2021
Co-editors in chief Anatoly Zayats and Xiao-Cong (Larry) Yuan look back on Advanced Photonics in 2020...
[期刊论文] 作者:康云川,高义民,李博,赵四勇, 来源:热加工工艺 年份:2021
采用真空热压烧结技术制备了BaO/TiO2增强NiAl基复合材料,并且研究了复合材料在900℃的抗氧化性能.结果 表明,复合材料的组织结构比较致密,各物相分布比较均匀.氧化过程中,复...
[学位论文] 作者:王丽珠,, 来源:南京航空航天大学 年份:2021
BaO-ZnO-SiO_2系陶瓷具有较低的介电常数和介电损耗,成为毫米波器件用候选材料之一。...本文选择BaO-ZnO-SiO_2三元系陶瓷为研究对象,利用X射线衍射(XRD)、拉曼光谱、扫描电镜(SEM)和网络分析仪等仪器系统地研究了陶瓷的制备工艺、相组成、显微组织和微波介电性能,并从晶体化学键参数和晶格振动出发...
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