[PDF] Top 20 The effect of railway local irregularities on ground vibration
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The effect of railway local irregularities on ground vibration
... dynamic ground response is calculated using finite element methods via the commercial software package ...high ground vibrations originating in singular rail surface defects can be readily ...study ... See full document
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Numerical Analysis of the Primer Location Effect on Ground Vibration Caused by Blasting
... detonation pressure and water resistance) and blasting pattern (blast direction, burden and spacing, hole depth and delay times) and true understanding of this concept depends on direct observation and experimentation ... See full document
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Large scale international testing of railway ground vibrations across Europe
... minimal effect on vibration levels, meaning that train weight ...current vibration prediction approaches (experimental and numerical) are able to model the exact properties of a given test site, then ... See full document
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EFFECT OF SPEED & WEIGHT TRAIN ON THE SURROUNDING VIBRATION TUNNEL ON THE GROUND SURFACE.
... Railway vehicles are complex mechanical systems, have many degrees of freedom because of springs, linear and nonlinear damping. Train moving created three-dimensional forces at path railway. These forces ... See full document
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Assessment of railway ground vibration in urban area using in-situ transfer mobilities and simulated vehicle-track interaction
... and local excitations are neglected ...of local defects which induce elevated and localised vibrations (Kouroussis et ...the vibration levels generated by local ...the effect of ... See full document
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Measurement of ground to building frequency response functions for assessment of human exposure to vibration from railway vibration
... the railway line because the ground motion will be influenced by the source ...the effect of the near field as 15 meters from the source whereas Hannelius (in Bahrekazemi [15]) suggests 20 ...the ... See full document
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Human response to vibration in residential environments
... to railway and road traffic induced vibration in residential ...to vibration of 1503 residents was determined using questionnaires administered by a telephone interview and a semi-empirical model was ... See full document
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... Harbin-Dalian railway test ...the vibration in the structure, which attenuates ...coupling effect of geogrid with various tensile strengths and the piles with different strength grades indicated that ... See full document
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Numerical modelling of ground borne vibrations from high speed rail lines on embankments
... debris. Irregularities introduce high frequency excitation into the system in addition to the low frequency content generated due to the sleeper spacing excitation ...of railway vibration [28], [29], ... See full document
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Prediction of railway induced ground vibration through multibody and finite element modelling
... of vibration lies in the irregular deflection of the track which induces up and down motion of the moving mass: the rail indeed o ff ers a larger rigidity (and then a smaller displacement) above the sleep- ers ... See full document
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Optimising low acoustic impedance back-fill material wave barrier dimensions to shield structures from ground borne high speed rail vibrations
... the railway industry, as a moving train acts as a series of moving point sources of different amplitude and frequency rather than a single point/line ...significant effect on trench performance as this body ... See full document
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Cargovibes : human response to vibration due to freight rail traffic
... to vibration conducted in the EU FP7 CargoVibes ...with railway-induced ground-borne vibration affecting residents close to freight lines, with one work package that investigated human ... See full document
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Attitudinal factors as determinants of railway vibration annoyance
... to vibration and maximize the potential number of ...the railway, are exposed to different railway traffic and contain different kinds of ...the vibration source. Properties within a distance ... See full document
10
The Moderation Effect of Spirituality in Relationship of Competence and Internal Control System on the Quality of Local Government Financial Statement
... Goal-setting theory is one form of motivation theory emphasizes the importance of the relationship between the objectives with the resulting performance (Locke, 1968). The basic concept is someone who can understand the ... See full document
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SafetyNET Community-based patient safety initiatives: development and application of a Patient Safety and Quality Improvement Survey
... considerable attention as a potentially useful method of muscle stimulation for therapeutic and sports training purposes, the results remain controversial. Specific vibra- tional training protocols are lacking, resulting ... See full document
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Life Cycle Cost Evaluation of Noise Control Methods at Urban Railway Turnouts
... mind, railway grinding have been in use for several years now, with a broad range of specific purpose works such as grinding of switches and crossings and removal of defects and specific sites harder to reach by ... See full document
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... Another wavelet approach for rail wheel flats detection is presented in (Jia & Dhanasekar, 2007). In this study vibration signal average techniques, wavelet local energy average concept and wavelet ... See full document
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Studies on the effect of monoamine antagonists on the morphogenesis of the newt
... Int J De, BioI 3J 157 16 t (l9S9) 157 Studies on the effect of monoamine antagonists on the morphogenesis of the newt MAURI HAMALAINEN and JUHANI KOHONEN Department of Biology Laboratory of Animal Phy[.] ... See full document
7
Influence of vibration amplitude on the ultrasonic dispersion of soils
... and vibration amplitude on the process of ultrasonic dispersion of ...ultrasonic vibration, the solution was stirred with a magnetic stirring device (2 Hz, cylindrical shape with length 25 mm and thickness ... See full document
8
Effect of Abattoir Activities on the Ground Waters around Bodija and Akinyele Abattoirs in Oyo State
... II. RESEARCH METHODOLOGY The study was carried out in Ibadan, the capital city of Oyo State, Nigeria. It is located on geographic grid reference longitude 3° 5E, latitude 7° 20N with a population of over 3 million people ... See full document
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