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Safety assessment for buried drainage box culvert under influence of underground connected aisle blasting

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 191-204 doi: 10.1007/s11709-022-0906-1

Abstract: The vibration response evolution law of the buried drainage box culvert under blasting vibration wasof the box culvert, and PPV of the surface, it is proposed that the surface control velocity of the buried

Keywords： drainage box culvert     underpass blasting     dynamic response     numerical simulation     safety assessment    

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Improvement of mechanical behavior of buried pipelines subjected to strike-slip faulting using textured

Mahdi IZADI, Khosrow BARGI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1105-1119 doi: 10.1007/s11709-019-0539-1

Abstract: The present study investigates the mechanical behavior of a new generation of buried pipelines, dubbedThe present study has assessed 3-D numerical models of two kinds of buried textured pipelines, with 6

Keywords： buried pipeline     textured pipeline     local buckling    

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Analytical models for the surface electrical field and temperature distributions of novel PB-PSOI devices

Sun Weifeng,Gao Shan,Lu Shengli, Chen Junning

Strategic Study of CAE 2009, Volume 11, Issue 11,   Pages 82-87

Abstract: dependences of the surface electrical field and temperature on the thickness and the length of the buriedoxide have also been discussed in detail.Finally, the methods to optimize the thickness and the length of the buried oxide have been proposed

Keywords： PB-PSOI     surface electrical field     temperature distribution     buried oxide    

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Investigating peak stresses in fitting and repair patches of buried polyethylene gas pipes

Reza KHADEMI ZAHEDI, Pouyan ALIMOURI, Hooman KHADEMI ZAHEDI, Mohammad SHISHESAZ

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 1,   Pages 147-168 doi: 10.1007/s11709-019-0587-6

Abstract: polyethylene fittings in joining polyethylene gas pipes which are electrofused onto the pipe ends and buriedBuried polyethylene pipelines in the natural gas industry, can be imposed by sever loadings includingAlthough the buried pipe is imposed to the maximum values of stresses, the PE100 socket is more sensitivefour studied patch arrangements show significant reinforcing effects on the defected section of the buriedMeanwhile, the defected buried medium density polyethylene gas pipe and its saddle fused patch can resist

Keywords： Ansys software     polyethylene     buried pipelines     polyethylene joints     polyethylene patches     peak von Mises    

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Field measurement and analysis of asymmetric shallow buried twin tunnels with ultra small spacing

Wang Yunlong,Tan Zhongsheng,Chen Ying

Strategic Study of CAE 2012, Volume 14, Issue 11,   Pages 24-28

Abstract:

The ultra-small spacing tunnel of Jiaozhou Bay seabed tunnel in Qingdao is took for example; the surrounding rock pressure features and support force are analyzed through the field measurement. Results show that the surrounding rock pressure and support force of the after-excavation tunnel are larger than others of the tunnel. This result is different from the theoretical predictions and experimental results of most of the small spacing symmetry tunnel. To alleviate these problems effectively, support parameters are adjusted opportunely; the radial support capacity of the after-excavation tunnel is enhanced, and reinforcement measures of rock pillar are made at the same time. The monitoring results show that the stability of the after-construction tunnel has been effectively controlled, which provides useful reference for the design and construction of similar tunnels with small spacing.

Keywords： tunnel     ultra-small spacing     asymmetric     shallow-buried     field measurement    

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Cuprous oxide/copper oxide interpenetrated into ordered mesoporous cellulose-based carbon aerogels for

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 918-929 doi: 10.1007/s11705-023-2305-0

Abstract: In this work, a cuprous oxide/copper oxide composite was interpenetrated onto carbon nanosheets of cellulose-basedThe introduction of the carbon aerogel effectively prevents the aggregation of the cuprous oxide/copperoxide composite.stronger charge transfer capacity, and lower recombination rate of photogenerated carriers than copper oxide

Keywords： carbon aerogel     photocatalysis     dye degradation     biomass     cuprous oxide/copper oxide    

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Determining the optimum economic insulation thickness of double pipes buried in the soil for district

Fating LI, Pengfei JIE, Zhou FANG, Zhimei WEN

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 170-185 doi: 10.1007/s11708-020-0680-5

Abstract: The insulation thickness (IT) of double pipes buried in the soil (DPBIS) for district heating (DH) systemsThree types of heat sources, four operating strategies, three kinds of insulation materials, three buried

Keywords： double pipes     optimization model     optimum insulation thickness     minimum annual total cost    

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Mechanical properties and microstructure of multilayer graphene oxide cement mortar

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1058-1070 doi: 10.1007/s11709-021-0747-3

Abstract: This study reports on the effects of multilayer graphene oxide (MGO) on compressive strength, flexural

Keywords： graphene oxide     cement     mortar     mechanical properties     microstructure    

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The damage effect of earth penetrating weapons and key scientific problems of deep buried protective

Fan Pengxian,Qian Qihu,Wang Mingyang

Strategic Study of CAE 2013, Volume 15, Issue 5,   Pages 47-58

Abstract:

The protective engineering is an important constituent part of the deterrent force of national defense, and of great strategic position. The earth penetrating weapons (nuclear and non-nuclear) developing by countries with military power have already posed a great threat to the safety of our protective engineering. On the summary of the developing earth penetrating weapons, the damage effects of earth penetrating weapons are reviewed, with emphasis on penetrating effect, crater effect and explosion ground shock effect. Aiming at the main threatens, the major measures and technological approaches are discussed. And several key scientific problems, including comprehensive protection system, nonlinear deep rock mass mechanics, pendulum type wave and ultra-low friction phenomenon, and gather effect of several n-bombs, are proposed, which are with urgent need to be researched.

Keywords： earth penetrating weapons     damage effect     deep buried     protective engineering    

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Plasma spray coating on interconnector toward promoted solid oxide fuel cells and solid oxide electrolysis

Frontiers in Energy doi: 10.1007/s11708-023-0901-9

Abstract: Interconnector is a critical component to construct solid oxide cells (SOCs) stack.

Keywords： interconnector coating     plasma spray     electrochemical performance     Cr diffusion inhibition     solid oxide    

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Ammonia adsorption on graphene and graphene oxide: a first-principles study

Yue PENG, Junhua LI

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 403-411 doi: 10.1007/s11783-013-0491-6

Abstract: detect gas molecules that are harmful to the environment, the ammonia adsorption on graphene or graphene oxide

Keywords： graphene oxide     first-principles calculations     NH3 adsorption    

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Development of oxide dispersion strengthened ferritic steels with and without aluminum

Jae Hoon LEE

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 29-34 doi: 10.1007/s11708-012-0178-x

Abstract: The dispersed oxide particles were identified to be titania+ yttria for Al-free oxide dispersion strengthenedtemperature range of 298–973 K, because of the difference in number density and size of thermally stable oxide

Keywords： oxide dispersion strengthened (ODS) steel     milling     extrusion     aluminum     yttria    

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Study on support mechanical behaviour and scheme for shallow buried tunnel in weak wall rock with rich

Wan Fei,Tan Zhongsheng,Yang Sensen,Ma Dong

Strategic Study of CAE 2014, Volume 16, Issue 8,   Pages 45-53

Abstract:

Shallow buried section under river valley of Guan Jiao tunnel has doneThese research results can provide theoretical basis and underlying date for support scheme for Shallow buried

Keywords： Tunnel project     Shallow buried under river valley     Weak wall rock     Support scheme     Field monitoring    

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Catalytic activity of manganese oxide supported on alumina in the synthesis of quinoxalines

Rekha M., H. Kathyayini, N. Nagaraju

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 415-421 doi: 10.1007/s11705-013-1360-3

Abstract: Two catalysts, alumina and manganese oxide supported on alumina, have been prepared by calcination and

Keywords： alumina     manganese oxide deposited on alumina     quinoxaline synthesis    

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Time of flight improved thermally grown oxide thickness measurement with terahertz spectroscopy

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0705-3

Abstract: However, the invisibility of ceramic/thermally grown oxide (TGO) reflective wave leads to the measurement

Keywords： thermal barrier coatings     thermally grown oxide     terahertz spectroscopy     time of flight    

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Title Author Date Type Operation

Safety assessment for buried drainage box culvert under influence of underground connected aisle blasting

Journal Article

Improvement of mechanical behavior of buried pipelines subjected to strike-slip faulting using textured

Mahdi IZADI, Khosrow BARGI

Journal Article

Analytical models for the surface electrical field and temperature distributions of novel PB-PSOI devices

Sun Weifeng,Gao Shan,Lu Shengli, Chen Junning

Journal Article

Investigating peak stresses in fitting and repair patches of buried polyethylene gas pipes

Reza KHADEMI ZAHEDI, Pouyan ALIMOURI, Hooman KHADEMI ZAHEDI, Mohammad SHISHESAZ

Journal Article

Field measurement and analysis of asymmetric shallow buried twin tunnels with ultra small spacing

Wang Yunlong,Tan Zhongsheng,Chen Ying

Journal Article

Cuprous oxide/copper oxide interpenetrated into ordered mesoporous cellulose-based carbon aerogels for

Journal Article

Determining the optimum economic insulation thickness of double pipes buried in the soil for district

Fating LI, Pengfei JIE, Zhou FANG, Zhimei WEN

Journal Article

Mechanical properties and microstructure of multilayer graphene oxide cement mortar

Journal Article

The damage effect of earth penetrating weapons and key scientific problems of deep buried protective

Fan Pengxian,Qian Qihu,Wang Mingyang

Journal Article

Plasma spray coating on interconnector toward promoted solid oxide fuel cells and solid oxide electrolysis

Journal Article

Ammonia adsorption on graphene and graphene oxide: a first-principles study

Yue PENG, Junhua LI

Journal Article

Development of oxide dispersion strengthened ferritic steels with and without aluminum

Jae Hoon LEE

Journal Article

Study on support mechanical behaviour and scheme for shallow buried tunnel in weak wall rock with rich

Wan Fei,Tan Zhongsheng,Yang Sensen,Ma Dong

Journal Article

Catalytic activity of manganese oxide supported on alumina in the synthesis of quinoxalines

Rekha M., H. Kathyayini, N. Nagaraju

Journal Article

Time of flight improved thermally grown oxide thickness measurement with terahertz spectroscopy

Journal Article