Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 356

Conference Videos 10

Year

2023 26

2022 40

2021 39

2020 41

2019 15

2018 15

2017 16

2016 17

2015 18

2014 15

2013 11

2012 23

2011 17

2010 17

2009 12

2008 10

2007 7

2006 4

2005 4

2004 2

open ︾

Keywords

Soil 8

soil 7

China 4

Soil remediation 4

bearing capacity 4

finite element method 4

Adsorption 3

Bayesian belief network 3

Biochar 3

Biodegradation 3

Heavy metals 3

carbon sequestration 3

Bioaugmentation 2

Desorption 2

Ethiopia 2

Heavy metal 2

Hengsha east shoal 2

Risk assessment 2

Sulfamethoxazole 2

open ︾

Search scope:

排序： Display mode:

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 structureBased on these tests, several key issues about the seismic response of the dynamic soil-structure interactionMagnification or reduction of vibration transferred by soil was related to soil characteristic, excitationGenerally, sand magnifies vibration, while viscous powder soil dampens vibration.

Keywords： super-structure Generally Magnification frequency different

HTML PDF Collect

SOIL CARBON CHECK: A TOOL FOR MONITORING AND GUIDING SOIL CARBON SEQUESTRATION IN FARMER FIELDS

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 2, Pages 248-261 doi: 10.15302/J-FASE-2023499

Abstract:

● Establishment of a rapid tool for monitoring soil carbon sequestration

Keywords： 4 per 1000 initiative carbon sequestration climate action farmer fields SDG13 soil organic carbon soil testing

HTML PDF Collect

Field testing of geosynthetic-reinforced and column-supported earth platforms constructed on soft soil

Qiangong CHENG,Jiujiang WU,Dongxue ZHANG,Fengping MA

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2, Pages 124-139 doi: 10.1007/s11709-014-0255-9

Abstract: focused on the behavior of geosynthetic-reinforced and column-supported (GRCS) earth platforms in soft soilIt can be found that the soil arching is generated when the filling reaches a certain height.The measured pressure acting on the soil in the center of four piles was smaller than that acting onthe soil between two piles.The elongation and the tension of the geogrid located in the soil between piles are both larger than

Keywords： geosynthetic-reinforced and column-supported (GRCS) earth platforms soft soil bearing behavior settlementand deformation field testing

HTML PDF Collect

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

HTML PDF Collect

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

HTML PDF Collect

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

HTML PDF Collect

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

HTML PDF Collect

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

HTML PDF Collect

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

HTML PDF Collect

Steam turbine governor modeling and parameters testing for power system simulation

Ying LI, Chufeng PENG, Zenghui YANG

Frontiers in Energy 2009, Volume 3, Issue 2, Pages 198-203 doi: 10.1007/s11708-009-0004-2

Abstract: The theoretical modeling, parameters test and model correction for a steam turbine (ST) governor are discussed. A set of ST Governor system model for power system simulation is created based on this research. A power system simulation for an actual power grid accident is conducted using this new model and the comparison between the simulation and actual data show that the results are satisfactory.

Keywords： power system simulation ST governor system modeling parameters testing

HTML PDF Collect

Vibration testing of a steel girder bridge using cabled and wireless sensors

Dapeng ZHU, Yang WANG, James BROWNJOHN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3, Pages 249-258 doi: 10.1007/s11709-011-0113-y

Abstract: In the next series of testing, 16 wireless accelerometers are installed under the deck of another bridge

Keywords： wireless sensing structural health monitoring (SHM) signal conditioning operating deflection analysis ambient vibration

HTML PDF Collect

Standardization in testing methods for SOFC single cells

Tu Hengyong

Strategic Study of CAE 2013, Volume 15, Issue 2, Pages 33-38

Abstract:

Performance testing results of solid oxide fuel cell (SOFC) reveal complex relationship betweenStandardization in testing methods contributes to building of effective and sound connections betweenThe comparison can be made in regard to testing results from different institutions.construction, procedure formulation and standardized reporting of results for SOFC single cell testing

Keywords： solid oxide fuel cell performance testing testing routines standardization

HTML PDF Collect

The key technology of testing and commissioning of high-speed railway and the main testing achievements

Kang Xiong and Yao Jianwei

Strategic Study of CAE 2015, Volume 17, Issue 4, Pages 21-29

Abstract:

The connotation and necessity of testing and commissioning of high-speed railway is explained anddiscussed， combined with the engineering practice of testing and commissioning in China， the key technologyof testing and commissioning of high-speed railway are analyzed from the perspective of wheel/rail interactionThen the main achievements of testing and commissioning of high-speed railway in China are concluded，

Keywords： high-speed railway； system test； testing and commissioning； wheel/rail interaction； pantograph and ocs

HTML PDF Collect

Transfer function solving, simulating and testing of thermal dynamics characteristics of a ballscrew

Junyong XIA, Bo WU, Youmin HU, Tielin SHI,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2, Pages 233-241 doi: 10.1007/s11465-010-0014-0

Abstract: Based on the theory of heat transfer, the transfer function between the thermal deformation of any point on the lead screw and the temperature of heat sources of a ballscrew under the influence of multi-changeable heat sources is solved by using the Laplace transform method. By solving the amplitude-frequency characteristics and phase-frequency characteristics of the transfer function, the steady-state response of thermal deformation of the ballscrew is obtained, and the thermal dynamics characteristics of the lead screw under the influence of multi-heat sources are further studied. Comparing with the result of finite-element simulation, the theoretical analyzing result accords with the steady-state part of the finite-element simulating result. Through tests of the steady-state response of thermal deformation, the thermal dynamics characteristics are further studied. The curves of tests by and large accord with the theoretical analyzing result, which shows that the method of transfer function is correct and valid in solving the steady-state response of thermal deformation.

Keywords： ballscrew Laplace transform transfer function thermal dynamic characteristics

HTML PDF Collect

Ambient vibration testing and updating of the finite element model of a simply supported beam bridge

Ivan Gomez ARAUJO, Esperanza MALDONADO, Gustavo Chio CHO

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3, Pages 344-354 doi: 10.1007/s11709-011-0124-8

Abstract: An ambient vibration test on a concrete bridge constructed in 1971 and calibration of its finite element model are presented. The bridge is characterized by a system of post-tensioned and simply supported beams. The dynamic characteristics of the bridge, i.e. natural frequencies, mode shapes and damping ratios were computed from the ambient vibration tests by using the Eigensystem Realization Algorithm (ERA). Then, these characteristics were used to update the finite element model of the bridge by formulating an optimization problem and then using Genetic Algorithms (GA) to solve it. From the results of the ambient vibration test of this type of bridge, it is concluded that two-dimensional mode shapes exist: in the longitudinal and transverse; and these experimentally obtained dynamic characteristics were also achieved in the analytical model through updating. The application of GAs as optimization techniques showed great versatility to optimize any number and type of variables in the model.

Keywords： modal analysis parameter identification ambient vibration test Eigensystem Realization Algorithm (ERA) method finite element method