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[期刊论文] 作者：ZHANG Weiwei,CHENG Mengfei,ZHAO Zilong,
来源：声学学报（英文版） 年份：2022
A potential risk in ultrasonic guided wave testing is that weak echo signals from small defects may be submerged in noisy signals,which will cause missed detection.To over-come this shortcoming,a weak guided wave signal detection method bas......
Mathematical simulation of hot metal desulfurization during KR process coupled with an unreacted cor
[期刊论文] 作者：Yanyu Zhao,Wei Chen,Shusen Cheng,Lifeng Zhang,
来源：矿物冶金与材料学报 年份：2022
A three-dimensional mathematical model was established to predict the multiphase flow, motion and dispersion of desulfurizer particles, and desulfurization of hot metal during the Kanbara reactor (KR) process. The turbulent kinetic energy–......
[期刊论文] 作者：Lei Yang,Yuxiao Liu,Lingyu Sun,Cheng Zhao,Guopu Chen,Yuanjin Zhao,
来源：纳微快报（英文版） 年份：2022
Bone defects caused by trauma,tumor,or osteoarthritis remain challenging due to the lack of effective treatments in clinic.Stem cell transplantation has emerged as an alternative approach for bone repair and attracted widespread attention o......
[期刊论文] 作者：Zhong Cheng,
来源：北京周报（英文版） 年份：2022
The COVID-19 pandemic, lasting for about two years, has undeniably pre-sented one of the greatest protracted challenges to humanity. Now it is surging with more variants that spread even faster. It has exerted a profound impact on a world d......
[期刊论文] 作者：Zhong Cheng,
来源：北京周报（英文版） 年份：2022
The year 2021 brought nu-merous developments in international and regional arenas, from the COVID-19 world-wide spread and climate change, to the hasty withdrawal of the U.S. from Afghanistan and the renewed atten-tion to the Nuclear Non-Pr......
[期刊论文] 作者：Zhong Cheng,
来源：北京周报（英文版） 年份：2022
The world has been placed on high alert by the escalation of the Russia-Ukraine crisis. The logic behind Russia\'s actions is to protect its national security and to counteract NATO attempts, led by the U.S., to press itself forward onto Ru......
[期刊论文] 作者：Zhong Cheng,
来源：北京周报（英文版） 年份：2022
With the Olympic flame dancing to the drums of the Chinese Year of the Tiger, the Beijing 2022 Games—the first-ever Winter Olympics held in China and its second Olympics after hosting the 2008 Summer Games—concluded on February 20, to be ......
[期刊论文] 作者：Zhong Cheng,
来源：北京周报（英文版） 年份：2022
The Ukraine crisis is holding “a sword of Damocles”over the global economy,UN Secretary General António Guterres has warned, especially over poor, developing countries that face skyrocketing food, fuel and fertilizer prices, and are now ......
[期刊论文] 作者：Hai-Yang Cheng,
来源：科学通报（英文版） 年份：2022
For ground-state singly charmed baryons,the Λ+c,Ξ+c and Ξ0c form an antitriplet representation and they all decay weakly.TheΩ0c,Ξ1+c,Ξ1+c and ∑++,+,0c form a sextet representation;among them,only Ω0c decays weakly....
[期刊论文] 作者：Zhong Cheng,
来源：北京周报（英文版） 年份：2022
In the ongoing Russia-Ukraine conflict,warplanes, rockets, missiles and artillery units are not the only weapons in use. An information war is proving no less fierce than the fighting taking place on the ground....
[期刊论文] 作者：Hui-Ming Cheng,
来源：国家科学评论（英文版） 年份：2022
Voids are an essential scientific issue when it comes to traditional composite materials,because they greatly de-grade the latter\'s properties and usually cause catastrophic failure [1].Many characterization methods,such as mi-croscale X-r......
[期刊论文] 作者：Jianchun Cheng,
来源：中国科学：物理学 力学 天文学（英文版） 年份：2022
Ultrasonic waves,although not audible,naturally exist at high frequencies.Ultrasound can be controlled and unitized in various scenarios.Well-known examples are bats and dolphins,which produce ultrasound and detect the reflected signal for ......
Study on prescription and medication rules of Hua Baojin for treatment of colorectal cancer based on
[期刊论文] 作者：Meng-Qi Cheng,Yu-Wei Zhao,Ju-Ling Jiang,Hong-Gang Zheng,Bao-Jin Hua,
来源：海南医科大学学报（英文版） 年份：2022
Objective: To study the prescription and medication rule of Professor Hua Baojin in the treatment of colorectal cancer through data mining, so as to provide reference for clinical treatment of colorectal cancer. Methods: The outpatient medi......
[期刊论文] 作者：JIN Peng,ZHAO Hongbo,ZHANG Lixin,CHENG Yuan,YANG Jiuling,
来源：中国耐火材料（英文版） 年份：2022
The importance of basic refractories during the development of steel,non-ferrous and cement industries was introduced.The process of magnesia-chrome bricks was expounded.The development history of basic refractories of Sinosteel Luonai as w......
[期刊论文] 作者：Sun Junshuai,Zhu Xinghui,Xiao Yeqiu,Cheng Ke,Zhao Shuangrui,
来源：中国邮电高校学报（英文版） 年份：2022
The flexibility of the media access control(MAC)layer has always been an important concern in the existing communication architecture.To meet the more stringent requirements under large-scale connections,the MAC layer structure needs to be ......
Machine learning and numerical investigation on drag reduction of underwater serial multi-projectile
[期刊论文] 作者：Xi Huang,Cheng Cheng,Xiao-bing Zhang,
来源：防务技术 年份：2022
To increase launching frequency and decrease drag force of underwater projectiles,a serial multi-projectiles structure based on the principle of supercavitation is proposed in this paper.The drag reduction and supercavitation characteristic......
[期刊论文] 作者：Wenxiao Zhao,
来源：控制理论与技术（英文版） 年份：2022
Sparsity of a parameter vector in stochastic dynamic systems and precise reconstruction of its zero and nonzero elements appear in many areas including systems and control [1–4], signal processing [5,6], statistics [7,8], and machine learn......
[期刊论文] 作者：Weijie Zhao,
来源：国家科学评论（英文版） 年份：2022
Synthetic chemistry is the art of molecules.By breaking and forming chemical bonds,chemists can transform one molecule into another,and provide a variety of chemicals that we use in our daily lives.Among all chemical bonds,the carbon-hydrog......
Physical mechanics investigation into carbon utilization and storage with enhancing shale oil and ga
[期刊论文] 作者：ZHAO YaPu,
来源：中国科学：技术科学（英文版） 年份：2022
Over the last decade,the boom in hydrocarbon recovery from shale formations has revolutionized the world energy landscape[1-3].This unconventional energy contributes to lower carbon dioxide(CO2)and other criteria pollutant emissions.However......
Structures and macrosegregation of a 2024 aluminum alloy fabricated by direct chill casting with dou
[期刊论文] 作者：Cheng Zhu,Zhi-hao Zhao,Qing-feng Zhu,Gao-song Wang,Yu-bo Zuo,Gao-wu Qin,
来源：中国铸造 年份：2022
Central region coarse grains and centerline segregation are common defects in aluminum ingots fabricated by direct chill (DC) casting. A double cooling field was introduced into the DC casting process to reduce these defects, whereby the ex......
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