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Nonlinear dynamic analysis of functionally graded carbon nanotube-reinforced composite plates using MISQ20

Frontiers of Structural and Civil Engineering   Pages 1072-1085 doi: 10.1007/s11709-023-0951-4

Abstract: objective of this study is to further extend the mixed integration smoothed quadrilateral element with 20unknowns of displacement (MISQ20) to investigate the nonlinear dynamic responses of functionally graded

Keywords： carbon nanotube     MISQ20     FG-CNTRC plate     nonlinear vibration     nonlinear dynamic analysis     SFEM    

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Rolling-element bearings in China: From ancient times to the 20th century

Lie SUN,Ang LI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 33-43 doi: 10.1007/s11465-016-0373-2

Abstract:

The development of rolling-element bearings in China has spanned a long period. Based on several typical and important cases, the present article reconstructs the history of rolling-element bearings in China by dividing it into four stages according to the various characteristics of the bearings. The first stage represents the origin of rolling bearings in China, which remains controversial because of several suspected races and cages that were likely the components of bearings more than a millennium ago. At the second stage, a type of simple roller bearing was used for astronomical instruments not later than the 13th century based on clear philological and physical evidence. A similar bearing was also applied to an abridged armillary in the 17th century. Another type of spherical thrust bearings with rolling elements, which is a key component of a traditional Chinese windmill, could support a rotating shaft that moves rotationally and at an angle. At the third stage, the Chinese began studying and using the so-called European-style bearing since the 17th century. Moreover, over the last 100 years, the modern rolling bearing industry was gradually established in China, particularly because of the technology transfer from the Soviet Union in the 1950s. At the fourth stage, the Chinese government initiated the relatively rapid development of bearing technology. The government launched the “bearing movement” from the 1950s to the 1960s to establish the modern bearing industry and to promote rolling bearings as replacement for traditional sliding bearings. Furthermore, a number of large professional factories and institutions in China have continually introduced advanced technology and equipment. At present, these companies and institutions play a significant role in the international bearing industry.

Keywords： bearing movement     rolling-element bearing     China     early rolling bearings     technology transfer    

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20th Century" was Announced in Beijing"> "China’s Major Achievements in Engineering and Technology in the 20th Century" was Announced in Beijing

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Strategic Study of CAE 2002, Volume 4, Issue 1,   Pages 94-94

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ORGANIC CARBON STOCKS IN A SILTY TEXTURED SOIL FOLLOWING REINTEGRATION OF A 20 YEARS OLD × SITE INTO

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 2,   Pages 183-197 doi: 10.15302/J-FASE-2023485

Abstract:

● 0.98 Mg·ha−1·yr−1 Corg accumulation under miscanthus over 26 years.

Keywords： biobased energy crops     C balance     humus accumulation    

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Green building research from design to operation in the past 20 years: A perspective

Borong LIN, Yi WANG, Jiaping LIU, Juan YU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1049-1055 doi: 10.1007/s11709-020-0668-6

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System Integration and Innovation of Operating 20 kt Combined Heavy-haul Train on Datong—Qinhuangdao

Geng Zhixiu

Strategic Study of CAE 2008, Volume 10, Issue 3,   Pages 31-43

Abstract: Relying on integration innovation, it succeeded in operating 20 kt-level combined heavy-haul train on

Keywords： China railways     Datong—Qinhuangdao line     20 kt-level combined heavy-haul train     integration innovation    

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Alteration of heat shock protein 20 expression in preeclamptic patients and its effect in vascular and

Fanfan Li, Mengzhou He, Meitao Yang, Yao Fan, Yun Chen, Xi Xia, Yin Xie, Dongrui Deng

Frontiers of Medicine 2018, Volume 12, Issue 5,   Pages 542-549 doi: 10.1007/s11684-017-0576-x

Abstract: Heat shock protein 20 (HSP20) is ubiquitously expressed under normal physiological conditions and hasHowever, the role of HSP20 in the pathogenesis of PE remains unclear.(CPAs) and serum from 118 healthy pregnant women and 80 women with PE and detected the levels of HSP20Both HSP20 and phosphorylated HSP20 were downregulated in CPAs from women with PE.HSP20 might contribute to the pathogenesis of PE.

Keywords： preeclampsia     heat shock protein 20     vascular relaxation     coagulation-fibrinolytic system    

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Mechanic analysis of a new 20 m bridge-inspection vehicle with the finite element method

Shen Yiping,,He Fuquan,Wang Songlai, Zhang Tian

Strategic Study of CAE 2010, Volume 12, Issue 9,   Pages 107-112

Abstract:

This paper focuses on a new designed 20-meters bridge-inspection vehicle

Keywords： bridge-inspection vehicle     finite element analysis     static     modal analysis     strength    

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Preclinical characterization and comparison between CD3/CD19 bispecific and novel CD3/CD19/CD20 trispecific

Frontiers of Medicine 2022, Volume 16, Issue 1,   Pages 139-149 doi: 10.1007/s11684-021-0835-8

Abstract: bispecific antibodies with different molecular sizes and structures, and A-2019 is a novel CD3/CD19/CD20trispecific antibody with an additional anti-CD20 function.319 demonstrated superior to that of A-2019, whereas A-2019 has an additional capability to target CD20in cells missing CD19, suggesting its potential function against CD19 weak or negative CD20 positive

Keywords： B-cell acute lymphoblastic leukemia     bispecific antibody     trispecific antibody     CD19     CD20    

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Spatial embedded reinforcement of 20-node block element for analysis PC bridges

LONG Peiheng, DU Xianting, CHEN Weizhen

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 274-280 doi: 10.1007/s11709-008-0039-1

Abstract: The formula for the contribution of prestressed reinforcement on embedded reinforcement element is derived according to the mechanical behavior of PC bridges and the foundational principle of finite element method. Mechanical concept is definite and examples validate the calculation results. Reinforcement element model allows generating a finite element mesh without taking into consideration the layout of reinforcements. Furthermore, the prestressing tendon may pass through the concrete elements in an arbitrary manner. It is an effective approach that the no-node loads are diverted from the tendons to the adjacent concrete elements. A useful arithmetic analysis of the spatial curved tendon PC Bridges is provided.

Keywords： arithmetic analysis     calculation     prestressed reinforcement     mechanical     arbitrary    

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Synchronous rectal adenocarcinoma and anal canal adenocarcinoma

GU Jin, YAO Yunfeng, LI Jiyou, LU Aiping, WANG Hongyi

Frontiers of Medicine 2007, Volume 1, Issue 3,   Pages 333-337 doi: 10.1007/s11684-007-0064-9

Abstract: histological slides of both tumors were reviewed and immunohistochemical studies for cytokeratins (CKs) 7 and 20The index tumor demonstrated CK 7 /CK 20+ and the second showed CK7+/CK20+.

Keywords： CK7+/CK20+     resection     different     therapeutic strategy     upper-third    

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Engineering over the Past Century

Song Jian

Strategic Study of CAE 2002, Volume 4, Issue 3,   Pages 1-5

Abstract:

This paper reviews the progress of engineering in the world over the 20 th century, and describeswith the 25 achievements selected from “Outstanding Engineering Achievements in China in the 20th

Keywords： 20th century     engineering science and technology     social progress     economic development     scientific and technical    

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Effects of irradiation on chromium’s behavior in ferritic/martensitic FeCr alloy

Xinfu HE, Wen YANG, Zhehao QU, Sheng FAN

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 181-183 doi: 10.1007/s11708-009-0025-x

Abstract: The effects of irradiation on chromium performance under different temperatures in Fe-20at%Cr were modeled

Keywords： irradiation     Fe-20at%Cr alloy     chromium segregation    

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Vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating for high performance zinc-ion batteries

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1244-1253 doi: 10.1007/s11705-022-2293-5

Abstract: Vanadium oxides as cathode for zinc-ion batteries have attracted much attention because of their high theoretical capacity, flexible layered structure and abundant resources. However, cathodes are susceptible to the collapse of their layered structure and the dissolution of vanadium after repeated long cycles, which worsen their capacities and cycling stabilities. Herein, a synergistic engineering of calcium-ion intercalation and polyaniline coating was developed to achieve the superior electrochemical performance of vanadium pentoxide for zinc-ion batteries. The pre-intercalation of calcium-ion between vanadium pentoxide layers as pillars increase the crystal structure’s stability, while the polyaniline coating on the cathodes improves the conductivity and inhibits the dissolution of vanadium. This synergistic engineering enables that the battery system based-on the polyaniline coated calcium vanadate cathode to deliver a high capacity of 406.4 mAh·g−1 at 1 A·g−1, an ultralong cycle life over 6000 cycles at 10 A·g−1 with 93% capacity retention and high-rate capability. The vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating was verified to effectively improve the electrochemical performance of zinc-ion batteries.

Keywords： zinc-ion battery     CaV8O20     polyaniline coating     synergistic engineering     high capacity    

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The Progress on Chemistry and Technology of Synthetic Rubber in 20th Century

Wu Guanying

Strategic Study of CAE 1999, Volume 1, Issue 3,   Pages 79-85

Abstract:

The present review is related to the progress of synthetic rubber industry in this century with special emphasis on the synthetic chemistry, which is the theoretic ground of synthetic rubber. It is forecasted that the living/controlled polymerization of all kinds, their transformation and matallocene system will still take the leading trend in the near future. The progress of the corresponding technology for the manufacture of synthetic rubber will be the gas polymerization process and the polymerization reactor will remain a hot topic to be investigated .

Keywords： synthetic rubber     synthetic chemistry     living/controlled polymerization     gas phale polymerization process    

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Title Author Date Type Operation

Nonlinear dynamic analysis of functionally graded carbon nanotube-reinforced composite plates using MISQ20

Journal Article

Rolling-element bearings in China: From ancient times to the 20th century

Lie SUN,Ang LI

Journal Article

"China’s Major Achievements in Engineering and Technology in the 20th Century" was Announced in Beijing

null

Journal Article

ORGANIC CARBON STOCKS IN A SILTY TEXTURED SOIL FOLLOWING REINTEGRATION OF A 20 YEARS OLD × SITE INTO

Journal Article

Green building research from design to operation in the past 20 years: A perspective

Borong LIN, Yi WANG, Jiaping LIU, Juan YU

Journal Article

System Integration and Innovation of Operating 20 kt Combined Heavy-haul Train on Datong—Qinhuangdao

Geng Zhixiu

Journal Article

Alteration of heat shock protein 20 expression in preeclamptic patients and its effect in vascular and

Fanfan Li, Mengzhou He, Meitao Yang, Yao Fan, Yun Chen, Xi Xia, Yin Xie, Dongrui Deng

Journal Article

Mechanic analysis of a new 20 m bridge-inspection vehicle with the finite element method

Shen Yiping,,He Fuquan,Wang Songlai, Zhang Tian

Journal Article

Preclinical characterization and comparison between CD3/CD19 bispecific and novel CD3/CD19/CD20 trispecific

Journal Article

Spatial embedded reinforcement of 20-node block element for analysis PC bridges

LONG Peiheng, DU Xianting, CHEN Weizhen

Journal Article

Synchronous rectal adenocarcinoma and anal canal adenocarcinoma

GU Jin, YAO Yunfeng, LI Jiyou, LU Aiping, WANG Hongyi

Journal Article

Engineering over the Past Century

Song Jian

Journal Article

Effects of irradiation on chromium’s behavior in ferritic/martensitic FeCr alloy

Xinfu HE, Wen YANG, Zhehao QU, Sheng FAN

Journal Article

Vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating for high performance zinc-ion batteries

Journal Article

The Progress on Chemistry and Technology of Synthetic Rubber in 20th Century

Wu Guanying

Journal Article