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Centrifuge model test and field measurement analysis for foundation pit with confined water

Chunlin DING , Xiaohong MENG ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3, Pages 299-304 doi: 10.1007/s11709-009-0035-0

Abstract: The similarity law of centrifuge test was developed for the seepage field and stress field of a foundationFinally, a comparative study was conducted on the test results of the pit deformation and the field measurementresults show that the pit deformation regularity of the test is basically identical with that of the fieldmeasurement, and the difference in pit deformation between the test and the field measurement is within

Keywords： foundation pit with confined water centrifuge model test seepage-stress coupling field similarity relation field measurement deformation

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Study on the measurement of temperature field using laser holographic interferometry

Jinrong ZHU, Suyi HUANG, Wei LV, Huaichun ZHOU

Frontiers in Energy 2011, Volume 5, Issue 1, Pages 120-124 doi: 10.1007/s11708-010-0107-9

Abstract: The temperature field of an axisymmetric ethylene diffusion flame is measured using laser holographicTemperature field inversion is completed with the aid of components distribution divided from numericalError analysis of key steps is conducted using the theoretical formula of interference temperature measurementMoreover, the small error in environmental temperature measurement transfer to a high temperature rangeResults of temperature measurement using air components assumption relative to combustion simulation

Keywords： temperature field flame error analysis holographic interferometry

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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: took for example; the surrounding rock pressure features and support force are analyzed through the fieldmeasurement.

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

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Field scale measurement of greenhouse gas emissions from land applied swine manure

Devin L. Maurer, Jacek A. Koziel, Kelsey Bruning

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 3, doi: 10.1007/s11783-017-0915-9

Abstract: observational study was to measure GHG fluxes from land application of swine manure on a typical corn fieldStatic chambers were used for flux measurement along with gas analysis on a GC-FID-ECD.

Keywords： Climate change Emissions Greenhouse gases Land application Swine manure

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A New Method for Inferencing and Representing a Workpiece Residual Stress Field Using Monitored Deformation

Zhiwei Zhao,Changqing Liu,Yingguang Li,James Gao

Engineering 2023, Volume 22, Issue 3, Pages 49-59 doi: 10.1016/j.eng.2022.07.018

Abstract: that must meet high-precision requirements, accurately measuring and predicting the residual stress fieldExisting technologies for measuring the residual stress field are either strain-based measurement methodsIn the proposed method, the residual stress field of a workpiece is inferred based on the characteristicsof the deformation forces that reflect the overall effect of the unbalanced residual stress field afterThe relationship between deformation forces and the residual stress field is modeled based on the principle

Keywords： Residual stress field Precision manufacturing Deformation force Inverse problem In situ measurement

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density measurement for plastic injection molding via ultrasonic technology

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0714-2

Abstract: Therefore, in-situ density measurement is of great interest and has significant application valueThis study is the first to propose an in-situ density measurement method using ultrasonic technologyThe proposed method has the advantages of in-situ measurement, non-destructive, high accuracy,

Keywords： ultrasonic measurement melt density in-situ measurement injection molding

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An analysis in metal barcode label design for reference

Yin ZHAO,Hong-guang XU,Qin-yu ZHANG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 2, Pages 173-184 doi: 10.1631/FITEE.1500212

Abstract:

We employ nondestructive evaluation involving AC field measurement in detecting and identifying metalUsing the magnetic scalar potential boundary condition at notches in thin-skin field theory and 2D Fourierwith a metal barcode label containing multiple narrow saw-cut notches, and then calculate the magnetic fieldWith the simulations of the magnetic field, qualitative analysis is given for the effects on detecting

Keywords： Metal barcode label Signal detection AC field measurement Internet of things

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A Train-Bridge Dynamic Interaction Analysis Method and Its Experimental Validation

Nan Zhang, Yuan Tian, He Xia

Engineering 2016, Volume 2, Issue 4, Pages 528-536 doi: 10.1016/J.ENG.2016.04.012

Abstract:

The train-bridge dynamic interaction problem began with the development of railway technology, and requires an evaluation method for bridge design in order to ensure the safety and stability of the bridge and the running train. This problem is studied using theoretical analysis, numerical simulation, and experimental study. In the train-bridge dynamic interaction system proposed in this paper, the train vehicle model is established by the rigid-body dynamics method, the bridge model is established by the finite element method, and the wheel/rail vertical and lateral interaction are simulated by the corresponding assumption and the Kalker linear creep theory, respectively. Track irregularity, structure deformation, wind load, collision load, structural damage, foundation scouring, and earthquake action are regarded as the excitation for the system. The train-bridge dynamic interaction system is solved by inter-history iteration. A case study of the dynamic response of a CRH380BL high-speed train running through a standard-design bridge in China is discussed. The dynamic responses of the vehicle and of the bridge subsystems are obtained for speeds ranging from 200 km·h^-1 to 400 km·h^-1, and the vibration mechanism are analyzed.

Keywords： Train-bridge dynamic interaction Wheel/rail relationship Inter-history iteration Field measurement Experimental

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A measurement system for thin elastohydrodynamic lubrication films

WANG Xuefeng, GUO Feng, YANG Peiran

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2, Pages 193-196 doi: 10.1007/s11465-007-0032-8

Abstract: An elastohydrodynamic lubrication (EHL) film measurement system using multi-beam interferometry is introducedThe measurement principle and the instrumentation are discussed.It is demonstrated that the presented measurement system can provide continuous measurement of lubricating

Keywords： instrumentation continuous measurement elastohydrodynamic lubrication ultra-thin measurement

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Experimental measurement of double-K fracture parameters of concrete with small-size aggregates

ZHANG Xiufang, XU Shilang, ZHENG Shuang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4, Pages 448-457 doi: 10.1007/s11709-007-0061-8

Abstract: The double- fracture model can well describe the development of cracks undergoing during the entire fracture process in concrete. Therefore, it has been selected as the theoretical basis of the Norm for fracture test of

Keywords： development concrete theoretical double- fracture

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Study on direct measurement method of vorticity from particle images

RUAN Xiaodong, FU Xin, YANG Huayong

Frontiers in Energy 2007, Volume 1, Issue 4, Pages 408-412 doi: 10.1007/s11708-007-0059-1

Abstract: To overcome the shortcomings of conventional methods for vorticity measurement, a new direct measurement

Keywords： conventional vorticity measurement particle DMV theory

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Ultrasonic measurement of tie-bar stress for die-casting machine

Frontiers of Mechanical Engineering doi: 10.1007/s11465-021-0663-1

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Requirements in performance measurement systems of construction projects from the lean production perspective

Karina B. BARTH, Carlos T. FORMOSO

Frontiers of Engineering Management 2021, Volume 8, Issue 3, Pages 442-455 doi: 10.1007/s42524-020-0108-2

Abstract: Performance measurement (PM) generates useful data for process control, facilitates communication betweenIn addition, studies on how lean companies (or projects) use performance measurement and to what extent

Keywords： performance measurement lean construction production management continuous improvement metrics

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The adoption of repeated measurement of variance analysis and Shapiro–Wilk test

Frontiers of Medicine 2022, Volume 16, Issue 4, Pages 659-660 doi: 10.1007/s11684-021-0908-8

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100 Years of Gear Measurement Technology——Review & Prospect

Shi Zhaoyao,Fei Yetai,Xie Huakun

Strategic Study of CAE 2003, Volume 5, Issue 9, Pages 13-17

Abstract:

The evolution of gear measurement technology in the past 100 years is fully reviewed, and 6 key issuesEmphases are laid on the development of gear measurement principles, the evolution of technical measuresrealizing them and the interpretation & utilization of measurement results.A few of new phenomena in the field of gear measurement technology are remarked, and some research topics

Keywords： gear gear measurement gear deviation gear measuring instrument