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Selective catalytic reduction of NOx from exhaust of lean-burn engine over Ag-Al2O3/cordierite catalyst

LI Junhua, KANG Shoufang, FU Lixin, HAO Jiming

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 143-146 doi: 10.1007/s11783-007-0025-1

Abstract: Only unburned hydrocarbons and carbon monoxide in the exhaust were directly used as reductant (withoutany external reductant), the maximum NO conversion could only reach 40% at 450?When an external reductant, ethanol was added, the average NO conversion was greater than 60%.

Keywords： lean-burn gasoline     external reductant     nitrogen adsorption     conversion     catalyst performance    

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Effectiveness of external prestressing in enhancing the non-ductile hanger failure mechanism in reinforced

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 7,   Pages 1050-1065 doi: 10.1007/s11709-024-1026-x

Abstract: The key purpose of this study is to investigate the efficiency of vertical external prestressing stainless-steel

Keywords： RC bridges     inverted T-beams     strengthening     hanger failure     external prestressing    

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Numerical modeling of external light gauge steel framed wall systems exposed to bushfire flame zone conditions

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 9,   Pages 1424-1444 doi: 10.1007/s11709-024-1106-y

Abstract: costs of experimental studies and lack of numerical studies, the heat transfer behavior of building’s externalExperimental results of six internal and external LSF wall systems with varying plasterboard thicknessThe study was then extended to investigate the bushfire resistance of seven external wall systems underThis study has shown that most of the investigated external LSF walls could be reused with cost-effectiveOverall, this study has advanced the understanding of the behavior of external light steel framed walls

Keywords： bushfires     flame zone     external light gauge steel framed walls     heat transfer analyses     numerical models    

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nitride enabled benzimidazoles production from furyl/aryl bio-alcohols and -nitroanilines without an external

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 68-81 doi: 10.1007/s11705-022-2174-y

Abstract: carbon catalysts (Co/CNx-T, T denotes the pyrolysis temperature) without using an external

Keywords： biomass conversion     furanic compounds     benzimidazoles     hydrogen transfer     bifunctional catalysis    

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Unified solution of limit loads of thick wall cylinder subject to external pressure considering strain

CHEN Changfu, XIAO Shujun, YANG Yu

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 329-333 doi: 10.1007/s11709-007-0043-x

Abstract: and the elastic and plastic limit loads of a thick-walled cylinder made of these materials subject to externalIn addition, the influence of some factors on the limit loads of such cylinders as the ratio of the external
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monitoring of the strengthening construction of a segmental box girder bridge and field testing of external

Ali Fadhil NASER, Zonglin WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 308-320 doi: 10.1007/s11709-012-0140-3

Abstract: either precast or cast in situ and then joined together by longitudinally post-tensioning internal, externalThe objectives of this study are to monitor the construction process of the external prestressing tendonsperform a field load test to measure the strain and the deflection of the anchorage devices of the externalThe monitoring process of the external prestressing tendons construction includes inspecting the cracksTherefore, there is no damage during the construction and the tensioning of the external prestressing

Keywords： prestressed concrete     box girder     monitoring     external tendons     strain     deflection    

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Shear behavior of ultra-high-performance concrete beams prestressed with external carbon fiber-reinforced

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1426-1440 doi: 10.1007/s11709-021-0783-z

Abstract: investigation on the shear behavior of UHPC beams reinforced with glass FRP (GFRP) and prestressed with external

Keywords： beam     external prestressing     ultra-high-performance concrete     fiber-reinforced polymers     shear behavior    

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Mesh relationship modeling and dynamic characteristic analysis of external spur gears with gear wear

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 9-9 doi: 10.1007/s11465-021-0665-z

Abstract: paper aims to establish the model of mesh relationship and reveal the vibration characteristics of external

Keywords： gear wear     mesh relationship     mesh stiffness     transmission error     vibration characteristics    

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Ductile extension of 3-D external circumferential cracks in pipe structures

Wuchao YANG, Xudong QIAN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 294-303 doi: 10.1007/s11709-011-0115-9

Abstract: This study investigates the ductile fracture resistance of 3-D external circumferential cracks in the

Keywords： ductile fracture     computational cell method     G-T model     J-R curve    

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Study on Finite Element Method for Calculation of Stress on External Ring of One-way Clutch

Luo Yixin,Wu Bo

Strategic Study of CAE 2004, Volume 6, Issue 9,   Pages 56-59

Abstract:

At present there is no appropriate method for calculation of stress on external ring of a one-wayIn this paper, according to characteristics of the external ring, the method of finite element analyaisused, the factors which have influence on computational accuracy have been studied, and the stress on externalfinite element analyais is really an attractive method for the calculation of stress on parts similar to external

Keywords： clutch     external ring     stress     finite element    

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patients with advanced malignant obstructive jaundice treated by percutaneous transhepatic biliary external

ZHU Lidong, CHEN Xiaoping

Frontiers of Medicine 2007, Volume 1, Issue 4,   Pages 364-368 doi: 10.1007/s11684-007-0070-y

Abstract: function of advanced malignant obstructive jaundice (MOJ) treated by percutaneous transhepatic biliary externalFifty-two external drainage tubes were placed in 41 cases of percutaneous transhepatic biliary externalTNF- in percutaneous transhepatic biliary external and internal groups decreased from (108.58±19.95)There was no difference in external drainage group (>0.05).Percutaneous transhepatic biliary internal or external drainage was an effective and important method
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Intrinsic kinetics and external diffusion of catalytic steam gasification of fine coal char particles

Xuantao Wu, Jie Wang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2,   Pages 415-426 doi: 10.1007/s11705-018-1725-8

Abstract: particles was carried out using a self-made laboratory reactor to determine the intrinsic kinetics and externalThe external mass transfer coefficients ( ) and the effectiveness factors were determined at lower GFVsAn intrinsic kinetics/external diffusion integrating model could well describe the gasification rate

Keywords： coal char     catalytic steam gasification     pressure     kinetics     diffusion    

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Full scale model test of segmental precast concrete box girder with external and internal tendons

Zheng Kaiqi,Bu Hongqi,Liu Zhao,Hui Zhuo,Lv Zhitao

Strategic Study of CAE 2013, Volume 15, Issue 8,   Pages 89-94

Abstract:

To investigate the structural behavior of segmental precast prestressed concrete box girder the regular service stage and the construction state, a span of 48 m full scale box girder model of this type was tested for the Fourth Nanjing Yangtze River Bridge approach. The assembling and loading plans were determined according to the geometric parameters as well as the actual constraints of the girder. This paper focuses on the static performance, such as stress and displacement changes of the girder during segment loading and transporting. Comparative finite element method analysis was also performed for checking. The model test results show that at the regular service stage, the residual deformation of the girder after unloading is small, which demonstrates that the girder keeps in elastic during loading. The tooth joints of segments work well with each other and have no relative slip; the global performance of the girder is good as monotonous. The vertical distribution of longitudinal strain at joint and between joints basically accords with hypothesis of plane section. Also, the stress increment of prestress tendons is linear to the mid-span moment change. Finally, during the segment transport stage, it shows that there is sufficient compressive stress of the lower flange of the girder to meet the security requirements of transporting girder.

Keywords： segmental precast     model test     external prestress     full scale test    

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Differential diagnosis of cervical nerve compression syndrome of the external intervertebral foramen

WANG Jinwu, NI Weifeng, XU Jianguang, ZHU Haibo, GUO Shangchun, ZENG Bingfang, ZHAO Binghui

Frontiers of Medicine 2007, Volume 1, Issue 2,   Pages 177-180 doi: 10.1007/s11684-007-0033-3

Abstract: aim of the present research is to study the mechanism of cervical nerve compression syndrome of the externalcelecoxib (COX)-2 inhibitor were performed in 20 patients with cervical nerve compression syndrome of the externalFifteen cases with cervical nerve compression syndrome of the external intervertebral foramen were healedThe etiology of cervical nerve compression syndrome of the external intervertebral foramen lies in theDiagnostic treatment was propitious to differentiate cervical nerve compression syndrome of the external

Keywords： satisfactory     COX     minimus     operation     compression syndrome    

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Reinforcement design of anchor blocks for external tendons

Hong Hao,Tong Yuqiang ,He Zhiqi,Liu Zhao

Strategic Study of CAE 2013, Volume 15, Issue 8,   Pages 95-98

Abstract:

Reinforced blocks are common anchorage forms for external tendons.

Keywords： anchor block     external prestressing     reinforcement design     bursting force     cantilever action     tie-back    

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Title Author Date Type Operation

Selective catalytic reduction of NOx from exhaust of lean-burn engine over Ag-Al2O3/cordierite catalyst

LI Junhua, KANG Shoufang, FU Lixin, HAO Jiming

Journal Article

Effectiveness of external prestressing in enhancing the non-ductile hanger failure mechanism in reinforced

Journal Article

Numerical modeling of external light gauge steel framed wall systems exposed to bushfire flame zone conditions

Journal Article

nitride enabled benzimidazoles production from furyl/aryl bio-alcohols and -nitroanilines without an external

Journal Article

Unified solution of limit loads of thick wall cylinder subject to external pressure considering strain

CHEN Changfu, XIAO Shujun, YANG Yu

Journal Article

monitoring of the strengthening construction of a segmental box girder bridge and field testing of external

Ali Fadhil NASER, Zonglin WANG

Journal Article

Shear behavior of ultra-high-performance concrete beams prestressed with external carbon fiber-reinforced

Journal Article

Mesh relationship modeling and dynamic characteristic analysis of external spur gears with gear wear

Journal Article

Ductile extension of 3-D external circumferential cracks in pipe structures

Wuchao YANG, Xudong QIAN

Journal Article

Study on Finite Element Method for Calculation of Stress on External Ring of One-way Clutch

Luo Yixin,Wu Bo

Journal Article

patients with advanced malignant obstructive jaundice treated by percutaneous transhepatic biliary external

ZHU Lidong, CHEN Xiaoping

Journal Article

Intrinsic kinetics and external diffusion of catalytic steam gasification of fine coal char particles

Xuantao Wu, Jie Wang

Journal Article

Full scale model test of segmental precast concrete box girder with external and internal tendons

Zheng Kaiqi,Bu Hongqi,Liu Zhao,Hui Zhuo,Lv Zhitao

Journal Article

Differential diagnosis of cervical nerve compression syndrome of the external intervertebral foramen

WANG Jinwu, NI Weifeng, XU Jianguang, ZHU Haibo, GUO Shangchun, ZENG Bingfang, ZHAO Binghui

Journal Article

Reinforcement design of anchor blocks for external tendons

Hong Hao,Tong Yuqiang ,He Zhiqi,Liu Zhao

Journal Article