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[期刊论文] 作者：Xin-Hua Zhao,Song-Jiang Liu,
来源：肿瘤微环境研究 年份：2021
Professor Liu Songjiang has been engaged in clinical research of tumors for more than 30 years.He is...
[期刊论文] 作者：左卫兵,蔡晓奕,
来源：河南教育学院学报:自然科学版 年份：2021
针对Poisson回归模型中解释变量存在复共线性问题,结合几乎无偏的思想提出了参数的几乎无偏Liu估计,在均方误差准则下,分别与极大似然估计、Liu估计进行比较,并给出了优于两...
[期刊论文] 作者：左卫兵,王欢,
来源：统计理论与实践 年份：2021
针对半变系数模型中存在的复共线性问题,在轮廓最小二乘估计的基础上提出参数的Liu估计以及几乎无偏Liu估计,在均方误差意义下给出几乎无偏Liu估计优于轮廓最小二乘估计、岭...
[期刊论文] 作者：姚艳阳,秦慈枫,
来源：海外英语（上） 年份：2021
Liu Miqing has made a great many modifications in The New Edition of Modern Translation Theory....
[期刊论文] 作者：姚艳阳,QIN Ci-feng,
来源：海外英语 年份：2021
Based on the earlier work Modern Translation Theory,Mr.Liu Miqing has made a great many modifications...
[期刊论文] 作者：蔡择林,陈金阳,江秉华,
来源：应用数学 年份：2021
本文研究连续测量数据情况下的混合系数线性模型的参数估计问题.利用压缩估计方法给出了该模型的一类新的有偏估计-广义Liu估计,并在均方误差意义下,证明此类估计分别优于最...
[期刊论文] 作者：丁斌芬,安洁玉,,
来源：大地测量与地球动力学 年份：2021
对Liu估计残差偏差进行修正,并基于二次型的数学期望公式,利用偏差改正后的残差导出Liu估计解的近似无偏单位权方差估计式。...
[期刊论文] 作者：邹媛,
来源：应用数学进展 年份：2021
为了解决二元逻辑回归模型中的复共线性问题,我们结合一阶近似Liu估计和刀切法的优点提出了一个新的估计即一阶近似刀切Liu估计。研究得出了新估计偏差的优良性以及在均方误...
[期刊论文] 作者：Jiaqin Liu,Chunying Liu,
来源：临床护理研究 年份：2021
Liu Chunying is a famous old Chinese medicine doctor for more than 30 years.He has rich experience in...
[期刊论文] 作者：Changxiao Liu,
来源：TMR现代中药 年份：2021
Editorial Academician Changxiao Liu is a pioneer in the field of pharmacokinetics in China.In recent...
[期刊论文] 作者：张巍巍,
来源：数学的实践与认识 年份：2021
研究半参数部分线性变系数模型的有偏估计,当回归模型参数部分自变量存在多重共线性时,在随机线性约束条件下,融合Profile最小二乘估计、加权混合估计和Liu估计构造回归模型...
[期刊论文] 作者：Hatty Liu,
来源：汉语世界(The World of Chinese) 年份：2021
dance” alive 普寧英歌：每逢节庆，广东普宁的村民们放下农活，画上脸谱，跳起“英雄之舞” Photography by Huang Ruide (黄瑞德) Text by Hatty Liu...
[学位论文] 作者：张静也,
来源：兰州大学 年份：2021
其显著优点是所需存储量小且有较好的收敛性质,因而十分适合用于求解大规模优化问题.在具体使用中主要有Hesfenes-Stiefel(HS)法、Fletcher-Reeves(FR)法、Polak-Ribiere-Polyak(PRP)法以及Liu-Storey...
Experience about treatment of advanced pancreatic cancer from Professor Liu Jianfeng and a case repo
[期刊论文] 作者：Shi-Heng Wang,Jian-Feng Liu,Pe,
来源：海南医学院学报:英文版 年份：2021
Pancreatic cancer is a common malignant tumor in clinical practice.At present,the incidence of pancreatic cancer in China is increasing rapidly year by year,whi...
[期刊论文] 作者：Ruijun Liu,Wenliang Li,Weihai Li,Yasen Shali,
来源：动物分类学报 年份：2021
In this paper,two new species are described and illustrated from China:Flavoperla separata Liu,Li&Shali...
Experience about treatment of advanced pancreatic cancer from Professor Liu Jianfeng and a case repo
[期刊论文] 作者：Shi-Heng Wang,Jian-Feng Liu,Pei-Jie Qin,
来源：海南医科大学学报（英文版） 年份：2021
Pancreatic cancer is a common malignant tumor in clinical practice. At present, the incidence of pancreatic cancer in China is increasing rapidly year by year,...
Helicobacter pylori promotes invasion and metastasis of gastric cancer by enhancing heparanase expre
[期刊论文] 作者：Li-Ping Liu,Xi-Ping Sheng,Tian-Kui Shuai,Yong-Xun Zhao,Bin Li,Yu-Min Li,
来源：世界胃肠病学杂志:英文版 年份：2021
Correction to"Liu LP,Sheng XP,Shuai TK,Zhao YX,Li B,Li YM.Helicobacter pylori promotes invasion and metastasis...
Design and multistability analysis of five-value memristor-based chaotic system with hidden attracto
[期刊论文] 作者：Li-Lian Huang,Shuai Liu,Jian-Hong Xiang,Lin-Yu Wang,
来源：中国物理B（英文版） 年份：2021
hysteresis loop by analyzing the relationship between voltage and current.Then,based on the classical Liu-Chen...
Correction to:Dynamic analysis of gene expression and determination of chemicals in agar wood in Aqu
[期刊论文] 作者：Zeqing Wu,Wanzhen Liu,Jing Li,Liangwen Yu,Li Lin,
来源：林业研究:英文版 年份：2021
expression and determination of chemicals in agarwood in Aquilaria sinensis”,written by Zeqing Wu,Wanzhen Liu...
[期刊论文] 作者：Yuan Yuan,
来源：北京周报（英文版） 年份：2021
One seemingly trivial issue has vexed Liu Wenyan for over 30 years....Liu only needs one shoe, but every time she goes shoe shopping she has to buy a pair.rnGrowing up in...Guizhou Province in southwest China, Liu lost one leg in a traffic accident at the age...
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