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Behavior of dam concrete under biaxial compression-tension and triaxial compression-compression-tension

WANG Huailiang, SONG Yupu

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 323-328 doi: 10.1007/s11709-008-0043-5

Abstract: Specimens subjected to biaxial compression-tension (C-T) and triaxial compression-compression-tension

Keywords： requirement     wet-screened concrete     compression-tension     maximum aggregate     principal    

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Seismic stability of earth slopes with tension crack

Yundong ZHOU, Fei ZHANG, Jingquan Wang, Yufeng GAO, Guangyu DAI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 950-964 doi: 10.1007/s11709-019-0529-3

Abstract: Such cracks result from limited tension strength of the soil.A tension cut-off in Mohr-Coulomb shear strength can represent this limited strength.Presented is an extension of variational analysis of slope stability with a tension crack consideringThe results indicate that the presence of the tension crack has significant effects on the seismic stabilityConsidering soil tension strength in seismic slope analysis may lead to overestimation on the stability

Keywords： slope stability     tension     crack     limit equilibrium     seismic effect    

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Surface tension of liquid metal: role, mechanism and application

Xi ZHAO, Shuo XU, Jing LIU

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 535-567 doi: 10.1007/s11708-017-0463-9

Abstract: Surface tension plays a core role in dominating various surface and interface phenomena.For liquid metals with high melting temperature, a profound understanding of the behaviors of surface tensionIn order to promote the research of surface tension of RTLM, this paper is dedicated to present an overviewon the roles and mechanisms of surface tension of liquid metal and summarize the latest progresses onMoreover, the unique phenomena of RTLM surface tension issues such as surface tension driven self-actuation

Keywords： surface tension     liquid metal     soft machine     printed electronics     electrowetting     self-actuation    

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Influence of steel corrosion on axial and eccentric compression behavior of coral aggregate concrete

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1415-1425 doi: 10.1007/s11709-021-0786-9

Abstract: To study the behavior of coral aggregate concrete (CAC) column under axial and eccentric compression,the compression behavior of CAC column with different types of steel and initial eccentricity (eNu under axial and eccentric compression

Keywords： coral aggregate concrete column     axial compression     eccentric compression     steel corrosion     calculation    

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Correlation between tension softening relation and crack extension resistance in concrete

Xiufang ZHANG , Shilang XU ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 323-329 doi: 10.1007/s11709-009-0041-2

Abstract: points of the crack extension resistance curve is closely related to the characteristic point on used tension

Keywords： concrete     fracture process zone     crack extension GR resistance     tension softening curve    

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Calculation method of load distribution on pipe threaded connections under tension load

Shoujun CHEN, Lianxin GAO, Qi AN

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 241-248 doi: 10.1007/s11465-011-0219-x

Abstract: new calculation method that can calculate the load distribution on pipe threaded connections under tensionThe model offers a new way to calculate the loads carried on the thread teeth under tension load.

Keywords： load distribution     calculation method     pipe threaded connections     tension load    

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Comparing the effects of Bassini versus tension-free hernioplasty: 3 years’ follow-up

Yulong SHI, Zhongxue SU, Leping LI, Hongjun LIU, Changqing JING,

Frontiers of Medicine 2010, Volume 4, Issue 4,   Pages 463-468 doi: 10.1007/s11684-010-0050-5

Abstract: In order to compare the effects of Bassini and tension-free mesh hernioplasty, a total of 552 patientsour hospital were randomly divided into the following two groups: the Bassini group (=269) and the tension-freeThe recurrence rate in the Bassini group was 8.9% (24/269), significantly higher than that in the tension-freeIn addition, the recurrence rates in the Bassini and tension-free groups before 2004 were 12.6% and 5.6%The average hospital stay in the Bassini group was longer than that in the tension-free repair group

Keywords： hernioplasty     Bassini repair     tension-free repair     complication    

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High-precision gyro-stabilized control of a gear-driven platform with a floating gear tension device

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 487-503 doi: 10.1007/s11465-021-0635-5

Abstract: enhances the anti-disturbance performance of a gear-drive gyro-stabilized platform with a floating gear tensionThe tension device can provide a self-adjustable preload to eliminate the gap in the meshing process.However, the weaker gear support stiffness and more complex meshing friction are also induced by the tensionalgorithm is demonstrated by comparative experiments on a gear-drive pointing system with a floating gear tension

Keywords： inertially stabilized platform     floating gear tension device     nonlinear friction     disturbance compensation    

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Effects of compression ratio on the combustion characteristics of a homogeneous charge compression ignition

SONG Ruizhi, ZHOU Longbao, LIU Shenghua, LI Wei, HU Tiegang

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 463-467 doi: 10.1007/s11708-007-0068-0

Abstract: The effects of homogeneous charge compression ignition (HCCI) engine compression ratio on its combustion

Keywords： homogeneous     cylinder     combustion     compression     dimethyl    

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Numerical study of ignition mechanism of n-heptane direct injection compression-ignition engine

Xiaoping GUO, Zhanjie WANG,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 432-439 doi: 10.1007/s11708-009-0050-9

Abstract: A detailed chemical dynamical mechanism of oxidation of n-heptane was implemented into kiva-3 code to study the ignition mechanism of a high-temperature, high-pressure, three-dimensional-space, transient turbulent, non-homogeneous, mono-component fuel in the engine. By testing the quantity of the heat released by the chemical reaction within the cylinder cell, the elementary reaction showing an obvious increase in the cell temperature was defined as ignition reaction and the corresponding cell as ignition position. The main pathway of the ignition reaction was studied by using the reverse deducing method. The result shows that the ignition in the engine can be divided into low-temperature ignition and high-temperature ignition, both of which follow the same rule in releasing heat, called the impulse heat releasing feature. Low-temperature ignition reaction, whose ignition reaction is c5h9o1-4=ch3cho+c3h5-a, follows the oxidation mechanism, while high-temperature ignition reaction, whose ignition reaction is c2h3o1-2=ch3co, follows the decomposition mechanism. No matter which ignition it is in, the chemical reaction that restrains the ignition reaction from lasting is the deoxidization reaction of alkylperoxy radicals.

Keywords： compression-ignition engine     ignition mechanism     elementary reaction     n-heptane    

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Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 74-84 doi: 10.1007/s11465-018-0490-1

Abstract:

Compared with conventional injection molding, injection-compression molding can mold optical partsmelt flow process in a closed cavity becomes more complex because of the moving cavity boundary during compressionIn this study, a 3D simulation method was developed for injection-compression molding.method, arbitrary Lagrangian-Eulerian was introduced to model the moving-boundary flow problem in the compressionreveal that the fountain flow effect becomes significant when the cavity thickness increases during compression

Keywords： injection-compression molding     simulation     injection molding     melt flow     cavity pressure    

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Improvement of engine performance with high compression ratio based on knock suppression using Miller

Haiqiao WEI, Jie YU, Lei ZHOU

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 691-706 doi: 10.1007/s11708-019-0621-3

Abstract: In theory, high compression ratio has the potential to improve the thermal efficiency and promote theHowever, the application of high compression ratio is substantially limited by the knock in practicalThe objective of this work is to comprehensively investigate the application of high compression ratioratio similar to CR10, which could eliminate the knock limits at a high compression ratio and high loadTo verify the advantages of the high compression ratio, the fuel economy and power performance of CR10

Keywords： high compression ratio     knock     Miller cycle     split injection     engine performance    

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Efficient controller area network data compression for automobile applications

Yu-jing WU,Jin-Gyun CHUNG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 1,   Pages 70-78 doi: 10.1631/FITEE.1400136

Abstract: In this paper, we present a CAN message compression method to reduce the CAN frame length.By using an embedded test board, we show that 64-bit engine management system (EMS) CAN data compression

Keywords： Controller area network (CAN)     Electronic control units (ECUs)     Data compression     Signal rearrangement    

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Schedule Compression Impact on Construction Project Safety

Curt Webb,Lu Gao,Ling-guang Song

Frontiers of Engineering Management 2015, Volume 2, Issue 4,   Pages 344-350 doi: 10.15302/J-FEM-2015059

Abstract: In addition, construction schedulers are frequently forced to incorporate aggressive schedule compressionAs already discussed by previous researchers, these schedule compression techniques have direct impactsResearchers have also pointed out that schedule compression will affect safety incidents such as Occupationaland project quality, and minimal research has been done to directly quantify the effect of schedule compressionresearch, we conducted a survey and statistical analysis to investigate the relationship between schedule compression

Keywords： construction safety     schedule compression     overtime     work shift     Hurdle model    

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Performance analysis of solar absorption-subcooled compression hybrid refrigeration system in subtropical

Xiangyang YE,Liming LIU,Zeyu LI

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 185-192 doi: 10.1007/s11708-017-0452-z

Abstract: Solar absorption-subcooled compression hybrid refrigeration system is a new type of efficient and economicalsimultaneously, the variation of working process as well as performance is complicated since the absorption and compression

Keywords： solar     absorption-subcooled     compression hybrid     dynamic simulation     performance analysis    

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Title Author Date Type Operation

Behavior of dam concrete under biaxial compression-tension and triaxial compression-compression-tension

WANG Huailiang, SONG Yupu

Journal Article

Seismic stability of earth slopes with tension crack

Yundong ZHOU, Fei ZHANG, Jingquan Wang, Yufeng GAO, Guangyu DAI

Journal Article

Surface tension of liquid metal: role, mechanism and application

Xi ZHAO, Shuo XU, Jing LIU

Journal Article

Influence of steel corrosion on axial and eccentric compression behavior of coral aggregate concrete

Journal Article

Correlation between tension softening relation and crack extension resistance in concrete

Xiufang ZHANG , Shilang XU ,

Journal Article

Calculation method of load distribution on pipe threaded connections under tension load

Shoujun CHEN, Lianxin GAO, Qi AN

Journal Article

Comparing the effects of Bassini versus tension-free hernioplasty: 3 years’ follow-up

Yulong SHI, Zhongxue SU, Leping LI, Hongjun LIU, Changqing JING,

Journal Article

High-precision gyro-stabilized control of a gear-driven platform with a floating gear tension device

Journal Article

Effects of compression ratio on the combustion characteristics of a homogeneous charge compression ignition

SONG Ruizhi, ZHOU Longbao, LIU Shenghua, LI Wei, HU Tiegang

Journal Article

Numerical study of ignition mechanism of n-heptane direct injection compression-ignition engine

Xiaoping GUO, Zhanjie WANG,

Journal Article

Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Journal Article

Improvement of engine performance with high compression ratio based on knock suppression using Miller

Haiqiao WEI, Jie YU, Lei ZHOU

Journal Article

Efficient controller area network data compression for automobile applications

Yu-jing WU,Jin-Gyun CHUNG

Journal Article

Schedule Compression Impact on Construction Project Safety

Curt Webb,Lu Gao,Ling-guang Song

Journal Article

Performance analysis of solar absorption-subcooled compression hybrid refrigeration system in subtropical

Xiangyang YE,Liming LIU,Zeyu LI

Journal Article