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[期刊论文] 作者：Li HE,
来源：数学学报:英文版 年份：2021
In this paper,we characterize the compactness and Fredholmness of Toeplitz operators and Toeplitz products on Bergman-Sobolev spaces over the unit polydisk.We also calculate the essential norm of finite sums of finite Toeplitz products on t......
[期刊论文] 作者：LI Siqi,
来源：美中外语:英文版 年份：2021
As college students have a desire for diversified skills in a fast-developing society,a variety of English learning mobile phone APPs appear in college students...
[期刊论文] 作者：LI Xiaodong,
来源：哲学研究:英文版 年份：2021
100 years ago,China was such a plagued country that the West thought it the world’s problem.A century later,China seems to be the Middle Kingdom when it once w...
[期刊论文] 作者：Li Yu,
来源：当代教育研究(百图) 年份：2021
Ma Shuilong was a famous composer in Taiwan,both at home and abroad.In 1986,the publication of his concerto,Bangdi,made him the first Chinese composer to have a full performance at the Lincoln Arts Center in New York.In the field of vocal m......
[期刊论文] 作者：LI Pei-qi,
来源：文学与艺术研究:英文版 年份：2021
Cooperative learning environments have received increasing attention in classrooms due to the potential for improving learning and achievement.This paper explores the helping behavior and influential factors in cooperative learning,it also ......
[期刊论文] 作者：Juntao Li,
来源：电子研究与应用 年份：2021
E-commerce is evolving as an innovative tool in a wide range of areas,and has changed the face of entrepreneurship by making them more efficient and dynamic.In this paper,the author firstly reviewed the current development of e-commerce and......
[期刊论文] 作者：Qing Li,
来源：应用数学(英文) 年份：2021
An instantaneous velocity where a moment of the clock only corresponds to an arbitrary distance or position in space cannot be implied in Axiom 1, but it indicates that there is only one dimensional existence, space or time, where a certain......
[期刊论文] 作者：JIANG LI,
来源：今日中国:英文版 年份：2021
ACROSS the world,the confluence of an unprecedented pandemic and transformations rarely seen in a century is posing a global challenge of epic proportions for humanity.To weather this turbulent moment in human history and keep the dream of ......
[期刊论文] 作者：LI YUAN,
来源：今日中国:英文版 年份：2021
TO the music of the Chinese popular song Heavenly Road,a bullet train rolled into the Lhasa Station at 10:30 a.m.on June 25,2021.Many people waiting on the platform took out their cell phones to take photos of the momentous event of the fir......
[期刊论文] 作者：LI Yuan-fei,
来源：数学季刊:英文版 年份：2021
In this paper,we consider the initial-boundary value problem for the large scale three-dimensional(3D)viscous primitive equations under random force.Assuming that the random force and the heat source satisfy the some assumptions,we firstly ......
[期刊论文] 作者：LI Hong-jun,
来源：数学季刊:英文版 年份：2021
In this paper,we give a necessary and sucient condition for a strongly pseudoconvex complex Finsler metric to be locally conformal pseudo-Kahler Finsler.As an application,we nd any complete strongly convex and locally conformal pseudo-Kahle......
[期刊论文] 作者：Li Qing,
来源：北京周报（英文版） 年份：2021
Earlier this year, a herd of wild Asian elephants wandering in southwest China\'s Yunnan Province captured the attention of the entire world. Departing their home range in Xishuangbanna on the very southern border of Yunnan as early as Marc......
[期刊论文] 作者：Li Fangfang,
来源：北京周报（英文版） 年份：2021
Wuerhe, located 90 km from downtown Karamay City in the northern part of Xinjiang Uygur Autonomous Region, is home to some 50,000 people from 10 ethnic groups, including Han, Mongolian and Uygur. It is widely known because of the popular Gh......
[期刊论文] 作者：Li Xiaoyang,
来源：北京周报（英文版） 年份：2021
Despite a number of challenges, including power shortages, the resurgence of COVID-19 cases, floods and rising prices of bulk commodities, China saw higher-than-expected economic growth in the first three quarters of 2021, with improving em......
[期刊论文] 作者：Li Nan,
来源：北京周报（英文版） 年份：2021
September 30 was a big day for David Ferguson. Dressed in his kilt, the 65-year-old Scotsman received the Friendship Award, the top prize given out annually by the Chinese Government to honor outstanding foreign experts, in the Great Hall o......
[期刊论文] 作者：Li Nan,
来源：北京周报（英文版） 年份：2021
If you are a big fan of Tibet but worry about the altitude, the Beijing-based Tibet Culture Museum may be a good option for you to get a closer look at the plateau. A special exhibition featuring 61 artifacts and more than 350 old photograp......
Seeds of Sustenance Chinese senior experts boost local agricultural development in Burundi through n
[期刊论文] 作者：Li Kaizhi,
来源：中国与非洲:英文版 年份：2021
Senior agricultural experts successfully completed a highland apple tree introduction trial in Burundi in May.The average weight of a single fruit in the trial reached 152 grams,and the maximum 230 grams.“Delicious!The local technical work......
Harmony Connects All Huawei introduces self-developed smartphone operating system to power the Inter
[期刊论文] 作者：Li Xiaoyang,
来源：中国与非洲:英文版 年份：2021
With the ambition of delivering enhanced cross-device experiences to consumers,Chinese tech company Huawei launched the second version of its open source operating system,HarmonyOS 2,on June 2.The system is able to connect a variety of devi......
A Golden Heart The commitment and contribution of a Chinese specialist to Ghanaian cardiology develo
[期刊论文] 作者：Li Xiaoyu,
来源：中国与非洲:英文版 年份：2021
Dr.Yaw Adu-Boakye from Komfo Anokye Teaching Hospital(KATH)in Kumasi,central Ghana,made headlines in October 2019.The young cardiologist and his colleagues successfully implanted a pacemaker in a teenage girl.This was the first minimally in......
African Culture In the Limelight The Beijing Africa Week, with a mission to bring people together, o
[期刊论文] 作者：Li Xiaoyu,
来源：中国与非洲（英文版） 年份：2021
Despite her busy schedule, Tania Romualdo, Ambassador of Cabo Verde to China, makes sure that she attends the Beijing Africa Week (BAW) in person every year. Ac...
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