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[期刊论文] 作者：Lin YANG,Shengliang YANG,
来源：数学研究及应用 年份：2021
In this paper,we enumerate the set of Motzkin trees with n edges according to the number of leaves,the number of vertices adjacent to a leaf,the number of prote...
[期刊论文] 作者：Qing Han,Lin Zhang,
来源：中国科学：数学（英文版） 年份：2021
We study the linear wave equation □gu = 0 in Bondi-Sachs coordinates,for an asymptotically flat Lorentz metric g.We consider the null-timelike boundary problem...
[期刊论文] 作者：Yao Wang,Bin Lin,
来源：中国物理B（英文版） 年份：2021
This paper conducts a trade-off between efficiency and accuracy of three-dimensional(3D)shape measurement based on the triangulation principle,and introduces a...
Synergetic effects of photo-oxidation and biodegradation on failure behavior of polyester coating in
[期刊论文] 作者：Lin Lu,Qianqian Liu,
来源：材料科学技术（英文版） 年份：2021
This work aimed to study the comprehensive effects of photo-oxidation and biodegradation on different failure stages of polyester coatings,which were exposed to...
Two new multi-phase reliability growth models from the perspective of time between failures and thei
[期刊论文] 作者：Kunsong LIN,Yunxia CHEN,
来源：中国航空学报（英文版） 年份：2021
Aviation products would go through a multi-phase improvement in reliability performance during the research and development process.In the literature,most of th...
[期刊论文] 作者：Mao Lin,Tongsheng Su,
来源：临床护理研究 年份：2021
Decreased ovarian reserve is one of the hot topics in current research.This article discusses the mechanism of acupuncture treatment of decreased ovarian reserve through the current acupuncture and moxibustion experimental research on the e......
A calculation method for friction coefficient and meshing efficiency of plastic line gear pair under
[期刊论文] 作者：Yangzhi CHEN,Yifan LIN,
来源：摩擦:英文版 年份：2021
A calculation method for the friction coefficient and meshing efficiency of plastic line gear(LG)pair under dry friction conditions was studied theoretically and experimentally,taking a polyoxymethylene parallel line gear pair(POM PLGP)as a......
Pulmonary alveolar proteinosis complicated with nocardiosis: A case report and review of the literat
[期刊论文] 作者：Xiao-Kang Wu,Quan Lin,
来源：世界临床病例杂志 年份：2021
BACKGROUND Pulmonary alveolar proteinosis(PAP)is a pulmonary syndrome wherein large volumes of phospholipid and protein-rich surfactants accumulate within the alveoli.PAP forms include primary(auto-immune PAP),secondary,and congenital.Nocar......
An ANN-exhaustive-listing method for optimization of multiple building shapes and envelope propertie
[期刊论文] 作者：Yaolin LIN,Wei YANG,
来源：能源前沿:英文版 年份：2021
With increasing awareness of sustainability, demands on optimized design of building shapes with a view to maximize its thermal performance have become stronger. Current research focuses more on building envelopes than shapes, and thermal c......
[期刊论文] 作者：Yong-Xiang Lin,Tzu-Hsuan Huang,
来源：工业设计 年份：2021
新一代老年人电动踏板车是一款专为老年人和患有膝关节疾病患者设计的多功能辅助仪器,它可以帮助他们独立行走或者完成日常生活中的其它事情,以减少他人的帮助。...
[期刊论文] 作者：Bo-chao Lin,Wei Chen,
来源：中国铸造 年份：2021
As a typical intermetallic material,TiAl is inevitably difficult to process by conventional methods.Additive manufacturing (AM) has recently become a new option for making net-shape TiAl components.Among all AM methods,electron beam melting......
Electromechanical equivalent circuit of radial composite ultrasonic transducer with a conical profil
[期刊论文] 作者：WANG Xiaoyu,LIN Shuyu,
来源：声学学报（英文版） 年份：2021
A kind of radial composite ultrasonic transducer with a conical profile was stud-ied.The transducer is composed of a metal ring with an equal section,an axially polarized piezoelectric ceramic ring and a metal ring with a conical profile an......
[期刊论文] 作者：Fucai LIN,Zhongbao TANG,
来源：中国数学前沿:英文版 年份：2021
Two non-discrete Hausdorff group topologiesτandδon a group G are called transversal if the least upper boundτ⋁δofτandδis the discrete topology.In this paper,we discuss the existence of transversal group topologies on locally pseudoco......
Review: Psychological Problems of Pregnant Women and Progress of Psychological Guidance in Recurrent
[期刊论文] 作者：Haiyan Lin,Chenyun Xu,
来源：健康（英文） 年份：2021
In order to understand the psychological problems of pregnant women, this article explores the psychological problems and the sources of psychological stress of pregnant women who have a history of recurrent miscarriage after pregnancy. The......
[期刊论文] 作者：Xin-Xin Meng,You-Xi Lin,
来源：稀有金属:英文版 年份：2021
The ADC12 aluminum alloy is prone to severe tool wear and high cutting heat during high-speed milling because of its high hardness.This study analyzes the highspeed milling process from the perspective of different chip morphologies.The inf......
Helicobacter pylori infection and peptic ulcer disease in cirrhotic patients:An updated meta-analysi
[期刊论文] 作者：Lin Wei,Hui-Guo Ding,
来源：世界临床病例杂志 年份：2021
BACKGROUND Peptic ulcer(PU)is more prevalent in patients with liver cirrhosis.The role of Helicobacter pylori(H.pylori)infection in the pathogenesis of PU in patients with cirrhosis is still not elucidated.AIM To perform a meta-analysis on ......
[期刊论文] 作者：LUO Lin,ZHAO Hui,
来源：系统科学与复杂性学报:英文版 年份：2021
Clustered interval-censored failure time data often occur in a wide variety of research and application fields such as cancer and AIDS studies. For such data, the failure times of interest are interval-censored and may be correlated for sub......
[期刊论文] 作者：Guoguang Lin,Yingguo Wang,
来源：应用科学（英文） 年份：2021
In this paper,we study the wellness and long time dynamic behavior of the solution of the initial boundary value problem for a class of higher order Kirchhoff equations wi...
[期刊论文] 作者：Qin Lin,Yumei Chen,
来源：当代教育研究（百图） 年份：2021
Geometric intuition is one of the core concepts introduced by the new mathematical cxirriculum standards.It aims to use intuition and intuitive materials to deepen the understanding of mathematics in mathematical cognition activities.It doe......
Bifurcation mechanism of interfacial electrohydrodynamicgravity-capillary waves near the minimum pha
[期刊论文] 作者：Gexing Xu,Zhi Lin,
来源：力学快报:英文版 年份：2021
We investigate the evolution of interfacial gravity-capillary waves propagating along the interface be-tween two dielectric fluids under the action of a horizontal electric field.There is a uniform backgroundflow in each layer,and the relat......
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