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Comparative genotoxicity of water processed by three drinking water treatment plants with different water treatment procedures

Ting Zhang, Heze Liu, Yiyuan Zhang, Wenjun Sun, Xiuwei Ao

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1214-4

Abstract: Genotoxicity was assessed by umu test; acute and chronic toxicity by ECOSAR.The genotoxicity was evaluated by an umu test, and the acute and chronic toxicity was analyzed throughThe results of the umu test indicated that biological activated carbon reduced the genotoxicity by 38%The results of ECOSAR were not consistent with those of the umu test.

Keywords： Drinking water Treatment process Genotoxicity Umu test Ecological Structure-Activity Relationship

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Mechanical performance analysis and stiffness test of a new type of suspension bridge

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5, Pages 1160-1180 doi: 10.1007/s11709-021-0760-6

Abstract: A stiffness test was carried out on the new type of suspension bridge with a small span, and the results

Keywords： new type of suspension bridge stiffness test mechanical performance railway bridge space truss

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Mixed mode properties of CNT reinforced composites using Arcan test rig

Jacob MUTHU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4, Pages 397-404 doi: 10.1007/s11709-015-0321-y

Abstract: Composite materials reinforced with carbon nanotubes were mechanical tested using Arcan test rig underArcan test rig was designed and fabricated to work with the Shimadzu testing machine.

Keywords： CNT composites Arcan test rig stress intensity factor

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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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XB High Accuracy Rocket Sled Test Track

Yang Xingbang

Strategic Study of CAE 2000, Volume 2, Issue 10, Pages 98-104

Abstract:

Rocket sled test track is a large ground dynamic simulating test facility.China has successfully built the world ´s only track —XB high accuracy rocket sled test track

Keywords： rocket sled test track ground dynamic simulating test

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Application of metal magnetic memory test in failure analysis and safety evaluation of vessels

Yiliang ZHANG, Song YANG, Xuedong XU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1, Pages 40-48 doi: 10.1007/s11465-009-0003-3

Abstract: Metal magnetic memory test (MMMT), which is a new subject in the field of nondestructive examination,MMMT and other test methods are applied in the study to put a propylene purifier of a temperature-jump

Keywords： Metal magnetic memory test (MMMT) nondestructive testing (NDT) residual stress propylene purifier ammonia

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Investigating the raveling test for full-depth reclamation

Robert HILL, Andrew BRAHAM

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 2, Pages 222-226 doi: 10.1007/s11709-017-0423-9

Abstract: Currently, there is no test to quantify the timing of return to traffic.In this study, the “Raveling test of cold mixed bituminous emulsion samples” (ASTM D7196) was used toRaveling test data was collected from 0 to 48 hours of curing, however, samples were often not able to

Keywords： raveling full depth reclamation

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Prediction of the shear wave velocity

Amoroso SARA

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1, Pages 83-92 doi: 10.1007/s11709-013-0234-6

Abstract: The paper examines the correlations to obtain rough estimates of the shear wave velocity from non-seismic dilatometer tests (DMT) and cone penetration tests (CPT). While the direct measurement of is obviously preferable, these correlations may turn out useful in various circumstances. The experimental results at six international research sites suggest that the DMT predictions of from the parameters (material index), (horizontal stress index), (constrained modulus) are more reliable and consistent than the CPT predictions from (cone resistance), presumably because of the availability, by DMT, of the stress history index .

Keywords： horizontal stress index shear wave velocity flat dilatometer test cone penetration test

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Model test and discrete element method simulation of shield tunneling face stability in transparent clay

Huayang LEI, Yajie ZHANG, Yao HU, Yingnan LIU

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1, Pages 147-166 doi: 10.1007/s11709-020-0704-6

Abstract: clay with properties similar to those of Tianjin clay is prepared and a new transparent clay model testapparatus is developed to overcome the “black box” problem in the traditional model test.

Keywords： shield tunneling face stability transparent clay model test numerical simulation

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Fault evolution-test dependency modeling for mechanical systems

Xiao-dong TAN,Jian-lu LUO,Qing LI,Bing LU,Jing QIU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 10, Pages 848-857 doi: 10.1631/FITEE.1500011

Abstract: improve the testability performance of mechanical systems for tracking fault growth, a fault evolution-test

Keywords： Mechanical systems Design for testability (DFT) Fault evolution-test dependency model (FETDM)

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Sectional model test study on vortex-excited resonance of vehicle-bridge system of Shanghai Bridge over

Li ZHOU, Yaojun GE

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1, Pages 67-72 doi: 10.1007/s11709-009-0007-4

Abstract: It is necessary to study how vehicles influence the vortex-excited resonance of vehicle-bridge systems, because lock-in wind speed is low and vortex-excited resonance is sensitive to any change in the main girder sections. Based on the Shanghai Bridge over the Yangtse River, the vortex-excited resonance of a 1∶60 scale sectional model was tested in a TJ-1wind tunnel, with or without vehicles at the attack angle of 0°, +3 and -3°, respectively. The conversion relationships between the resonant amplitudes of the sectional model and that of the prototype bridge were also established by mode shape correction. The result indicates that: 1) for the bridge with vehicles, the vertical vortex-excited resonance is accompanied by torsion vibration with the same frequency, and vice versa, 2) the amplitude of vortex-excited resonance of the bridge with vehicles is much larger than that of the bridge without vehicles, and 3) the lock-in wind speed of the vortex-excited resonance becomes smaller due to the disturbance of vehicles. It is obvious that vehicles bring about changes in the aerodynamic shape of the main girder. Therefore, the influence of vehicles on vortex-excited resonance performance of vehicle-bridge systems, in terms of both amplitude and mode, should not be ignored.

Keywords： vehicle-bridge system sectional mode vortex-excited resonance wind tunnel test mode shape correction

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A pilot scale test of ozonization treatment of ethene wastewater for reuse

ZHONG Li, REN Wei, GUO Wenjing

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2, Pages 191-195 doi: 10.1007/s11705-008-0028-x

Abstract: A pilot scale test of advanced treatment of ethene wastewater by ozonization was carried out for industrial

Keywords： different industrial oxygen generation criterion

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Bending failure performance of a shield tunnel segment based on full-scale test and numerical analysis

Frontiers of Structural and Civil Engineering Pages 1033-1046 doi: 10.1007/s11709-023-0973-y

Abstract: A full-scale test was conducted to investigate deformation and failure characteristics.A numerical model corresponding to the test was established using the elastoplastic damage constitutiveAfter a comparative analysis of the simulation and test results, parametric studies were performed to

Keywords： shield tunnel bearing capacity failure mechanism segment reinforcement

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Sequential degradation-based burn-in test with multiple periodic inspections

Frontiers of Engineering Management 2021, Volume 8, Issue 4, Pages 519-530 doi: 10.1007/s42524-021-0166-0

Abstract: the idea from sequential inspections for remaining useful life prediction and accelerated lifetime testand the updated posterior probability, a product can be disposed, put into field use, or kept in the test

Keywords： burn-in degradation multiple inspections Wiener process partially observed Markov decision process

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Large-scale model test study on the water pressure resistance of construction joints of karst tunnel

Frontiers of Structural and Civil Engineering Pages 1249-1263 doi: 10.1007/s11709-023-0974-x

Abstract: A large-scale model test was designed and conducted, innovatively transforming the external water pressurewater pressure resistance of the construction joint were analyzed, and the reliability of the model testThe test results show that the water pressure resistance of the embedded transverse reinforced waterstopresistance of the construction joint determined via numerical calculations is similar to the model testresults, indicating that the model test results have high accuracy and reliability.

Keywords： karst tunnel lining construction joint water pressure resistance large-scale model test numerical