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Zero-failure accelerated reliability demonstration test method based on degradation model

Zhang Huirui

Strategic Study of CAE 2015, Volume 17, Issue 5,   Pages 31-37

Abstract: Thus it is necessary to propose a method that take advantage of both degradation data and accelerated

Keywords： degradation model；accelerated testing；life demonstration；risk analysis；optimum plan    

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Progress in terahertz nondestructive testing: A review

Shuncong ZHONG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 273-281 doi: 10.1007/s11465-018-0495-9

Abstract: Recently, THz nondestructive testing (NDT) technology has become an interesting topic.

Keywords： terahertz pulsed imaging (TPI)     nondestructive testing (NDT)     composite material     thermal barrier coating    

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Sonic General Non-destructive Testing Technique

Chen Jimao

Strategic Study of CAE 2000, Volume 2, Issue 4,   Pages 64-69

Abstract:

This paper describes new general multi-mode non-destructive testing (NDT) of composite materials andThis technique which is based on sonic and ultrasonic testing performs five different modes of testing

Keywords： sonic general testing     general non-destructive testing (NDT)     non-destructive testing of composite materials     mechanical impedance analysis (MIA)     vibration analysis (VA)     resonance testing    

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A new procedure combining GC-MS with accelerated solvent extraction for the analysis of phthalic acid

Tingting MA, Ying TENG, Peter CHRISTIE, Yongming LUO, Yongshan CHEN, Mao YE, Yujuan HUANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 31-42 doi: 10.1007/s11783-012-0463-2

Abstract: An optimized procedure based on gas chromatography-mass spectrometry (GC-MS) combined with accelerated

Keywords： phthalic acid esters     quality assurance and quality control     soil type     accelerated solvent extraction     certified    

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Pretest analysis of shake table response of a two-span steel girder bridge incorporating accelerated

Elmira SHOUSHTARI, M. Saiid SAIIDI, Ahmad ITANI, Mohamed A. MOUSTAFA

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 1,   Pages 169-184 doi: 10.1007/s11709-019-0590-y

Abstract: Six accelerated bridge construction connections were incorporated in the bridge model.

Keywords： shake table test     accelerated bridge construction     steel girder bridge     OpenSEES     UHPC     simple for dead continuous    

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Precast steel–UHPC lightweight composite bridge for accelerated bridge construction

Shuwen DENG, Xudong SHAO, Xudong ZHAO, Yang WANG, Yan WANG

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 364-377 doi: 10.1007/s11709-021-0702-3

Abstract: In this study, a fully precast steel–ultrahigh performance concrete (UHPC) lightweight composite bridge (LWCB) was proposed based on Mapu Bridge, aiming at accelerating construction in bridge engineering. Cast-in-place joints are generally the controlling factor of segmental structures. Therefore, an innovative girder-to-girder joint that is suitable for LWCB was developed. A specimen consisting of two prefabricated steel–UHPC composite girder parts and one post-cast joint part was fabricated to determine if the joint can effectively transfer load between girders. The flexural behavior of the specimen under a negative bending moment was explored. Finite element analyses of Mapu Bridge showed that the nominal stress of critical sections could meet the required stress, indicating that the design is reasonable. The fatigue performance of the UHPC deck was assessed based on past research, and results revealed that the fatigue performance could meet the design requirements. Based on the test results, a crack width prediction method for the joint interface, a simplified calculation method for the design moment, and a deflection calculation method for the steel–UHPC composite girder in consideration of the UHPC tensile stiffness effect were presented. Good agreements were achieved between the predicted values and test results.

Keywords： accelerated bridge construction     ultrahigh-performance concrete     steel–UHPC composite bridge     UHPC girder-to-girder    

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Novel sensing techniques for full-scale testing of civil structures

Kaoshan DAI, Zhenhua HUANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 240-256 doi: 10.1007/s11709-012-0172-8

Abstract: Performing full-scale structural testing is an important methodology for researchers and engineers inFull scale testing helps the researchers understand civil infrastructures’ loading scenarios, behaviorsTo conduct a full-scale structural testing, sensors are used for data acquisitions.effective sensors, this study reviewed and categorized new sensing techniques for full-scale structural testingThe researchers of this study categorized sensors used for civil-infrastructure testing into traditional

Keywords： sensing technique     full-scale testing     wireless sensor     remote sensing     LiDAR     laser vibrometer    

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Reactive oxygen species generation is essential for cisplatin-induced accelerated senescence in hepatocellular

Kai Qu,Ting Lin,Zhixin Wang,Sinan Liu,Hulin Chang,Xinsen Xu,Fandi Meng,Lei Zhou,Jichao Wei,Minghui Tai,Yafeng Dong,Chang Liu

Frontiers of Medicine 2014, Volume 8, Issue 2,   Pages 227-235 doi: 10.1007/s11684-014-0327-1

Abstract:

Accelerated senescence is important because this process is involved in tumor suppression and hasHowever, the molecular mechanism of cisplatin-induced accelerated senescence in hepatocellular carcinomaFurthermore, cisplatin-induced accelerated senescence depended on intracellular ROS generation., our results revealed a functional link between intracellular ROS generation and cisplatin-induced accelerated

Keywords： reactive oxygen species     senescence     cisplatin     hepatocellular carcinoma    

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Accelerated life-time test of MEA durability under vehicle operating conditions in PEM fuel cell

Tian TIAN, Jianjun TANG, Wei GUO, Mu PAN

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 326-333 doi: 10.1007/s11708-017-0489-z

Abstract: In this paper, a novel accelerated test method was proposed to analyze the durability of MEA, considering

Keywords： polymer electrolyte membrane fuel cell     accelerated life-time test     load cycling test     durability    

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Influence of accelerated curing on the compressive strength of polymer-modified concrete

Izhar AHMAD; Kashif Ali KHAN; Tahir AHMAD; Muhammad ALAM; Muhammad Tariq BASHIR

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 5,   Pages 589-599 doi: 10.1007/s11709-022-0789-1

Abstract: EVA-modified concrete was studied by incorporating various concentrations of EVA as an admixture and by testingAn accelerated compressive strength at 3.5 hours was considered as a reference strength on the basis

Keywords： compressive strength prediction     polymer-modified concrete     linear regression fit     early age strength     ethylene vinyl acetate    

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Permeability testing of drilling core sample from pavement

WANG Suda, TANG Zhengguang, NING Xiaojun, WU Peiguan, XING Pingyi

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 391-394 doi: 10.1007/s11709-008-0045-3

Abstract: equipment is used to measure the permeability coefficient of the pavement drilling core sample and relevant testingTesting drilling core samples from a certain highway of Yunnan province has been proven to be feasible

Keywords： province     material     feasible     permeability coefficient     equipment    

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transplantation to nilotinib and dasatinib for adult patients with chronic myelogenous leukemia in the accelerated

Lanping Xu,Huanling Zhu,Jianda Hu,Depei Wu,Hao Jiang,Qian Jiang,Xiaojun Huang

Frontiers of Medicine 2015, Volume 9, Issue 3,   Pages 304-311 doi: 10.1007/s11684-015-0400-4

Abstract: , imatinib is the first-line therapy for patients with chronic myeloid leukemia (CML) in chronic or accelerateddasatinib and nilotinib, are appropriate treatment regimens for patients with disease that progressed to acceleratedstudy retrospectively analyzed the efficacy of TKI2 and HSCT for treatment of CML in acceleratedindicated that allo-HSCT may be superior to nilotinib and dasatinib for adult patients with CML in accelerated

Keywords： chronic myeloid leukemia     imatinib     dasatinib     nilotinib     allogeneic hematopoietic stem cell transplantation    

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Shaking table testing of hard layered soil-pile-structure interaction system

LI Peizhen, REN Hongmei, LU Xilin, SONG Heping, CHEN Yueqing

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 346-352 doi: 10.1007/s11709-007-0046-7

Abstract: Shaking table tests on a dynamic interaction system of hard layered soil, pile foundation and frame structure were carried out. The earthquake damage of the superstructure and foundation was reproduced. Based on these tests, several key issues about the seismic response of the dynamic soil-structure interaction (SSI) system were studied. The natural frequency of the system was less than that of the structure on rigid foundation if the SSI is not taken into account, while its damping ratio was larger than that of the structure. The mode shape of the system was different from that of the structure on the fixed base in that there were rocking and swinging at the foundation. Magnification or reduction of vibration transferred by soil was related to soil characteristic, excitation magnitude, and so on. Generally, sand magnifies vibration, while viscous powder soil dampens vibration. The components of the acceleration response at the top of the superstructure were based on the relative magnitude of the rocking stiffness, the swing stiffness of the foundation and the stiffness of the super-structure. The multi-direction excitations have little effect on the key issues of the horizontal SSI.

Keywords： super-structure     Generally     Magnification     frequency     different    

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

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: Prestressed concrete segmental box girder bridges are composed of short concrete segments that are either precast or cast in situ and then joined together by longitudinally post-tensioning internal, external, or mixed tendons. The objectives of this study are to monitor the construction process of the external prestressing tendons to strengthen the bridge structure and perform a field load test to measure the strain and the deflection of the anchorage devices of the external prestressing tendons to determine the state of these devices after tension forces are applied. The monitoring process of the external prestressing tendons construction includes inspecting the cracks in the diaphragm anchorage and the deviation block devices before the tension forces are applied to the external tendons; measuring the deformation of the steel deviation cross beam during the tension process; measuring the deformation of the box girder after different levels of tension forces are applied; measuring the elongation of the external tendons in each level of the tension; and measuring the natural frequency of the external tendons after the tension process is complete. The results of the monitoring process show that the measured values of the deformation, the elongation, and the natural frequency meet the requirements. Therefore, there is no damage during the construction and the tensioning of the external prestressing tendons. A field load test is performed to the anchorage beam, the steel deviation block devices, and the steel deviation cross beam. The field load test results of the anchorage devices show that the values of the strains, the stresses, and the deflection are less than the respective allowable limit values in the requirements. Therefore, the anchorage devices have sufficient strength, and the working state is good after the tension forces are applied to the external prestressing tendons.

Keywords： prestressed concrete     box girder     monitoring     external tendons     strain     deflection    

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Sulfidation/regeneration multicycle testing of nickel-modified ZnFe

Wei LI, Jinju GUO, Jiejie HUANG, Jiaotao ZHAO

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 435-440 doi: 10.1007/s11705-010-0506-9

Abstract: indicate that the nickel-modified ZnFe O keeps high reactivity and structural stability in the multicycle testing

Keywords： hot gas desulphurization     nickel-modified ZnFe2O4     sulfidation/regeneration    

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Title Author Date Type Operation

Zero-failure accelerated reliability demonstration test method based on degradation model

Zhang Huirui

Journal Article

Progress in terahertz nondestructive testing: A review

Shuncong ZHONG

Journal Article

Sonic General Non-destructive Testing Technique

Chen Jimao

Journal Article

A new procedure combining GC-MS with accelerated solvent extraction for the analysis of phthalic acid

Tingting MA, Ying TENG, Peter CHRISTIE, Yongming LUO, Yongshan CHEN, Mao YE, Yujuan HUANG

Journal Article

Pretest analysis of shake table response of a two-span steel girder bridge incorporating accelerated

Elmira SHOUSHTARI, M. Saiid SAIIDI, Ahmad ITANI, Mohamed A. MOUSTAFA

Journal Article

Precast steel–UHPC lightweight composite bridge for accelerated bridge construction

Shuwen DENG, Xudong SHAO, Xudong ZHAO, Yang WANG, Yan WANG

Journal Article

Novel sensing techniques for full-scale testing of civil structures

Kaoshan DAI, Zhenhua HUANG

Journal Article

Reactive oxygen species generation is essential for cisplatin-induced accelerated senescence in hepatocellular

Kai Qu,Ting Lin,Zhixin Wang,Sinan Liu,Hulin Chang,Xinsen Xu,Fandi Meng,Lei Zhou,Jichao Wei,Minghui Tai,Yafeng Dong,Chang Liu

Journal Article

Accelerated life-time test of MEA durability under vehicle operating conditions in PEM fuel cell

Tian TIAN, Jianjun TANG, Wei GUO, Mu PAN

Journal Article

Influence of accelerated curing on the compressive strength of polymer-modified concrete

Izhar AHMAD; Kashif Ali KHAN; Tahir AHMAD; Muhammad ALAM; Muhammad Tariq BASHIR

Journal Article

Permeability testing of drilling core sample from pavement

WANG Suda, TANG Zhengguang, NING Xiaojun, WU Peiguan, XING Pingyi

Journal Article

transplantation to nilotinib and dasatinib for adult patients with chronic myelogenous leukemia in the accelerated

Lanping Xu,Huanling Zhu,Jianda Hu,Depei Wu,Hao Jiang,Qian Jiang,Xiaojun Huang

Journal Article

Shaking table testing of hard layered soil-pile-structure interaction system

LI Peizhen, REN Hongmei, LU Xilin, SONG Heping, CHEN Yueqing

Journal Article

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

Ali Fadhil NASER, Zonglin WANG

Journal Article

Sulfidation/regeneration multicycle testing of nickel-modified ZnFe

Wei LI, Jinju GUO, Jiejie HUANG, Jiaotao ZHAO

Journal Article