Search Results - "Metje, N."
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Structural health monitoring of grouted connections for offshore wind turbines by means of acoustic emission: An experimental study
Published in Renewable energy (01-03-2020)“…Grouted connections for offshore wind turbines are formed by attaching overlapping steel piles with an ultra-high strength cementitious grout. The structural…”
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A portable magneto-optical trap with prospects for atom interferometry in civil engineering
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (06-08-2017)“…The high precision and scalable technology offered by atom interferometry has the opportunity to profoundly affect gravity surveys, enabling the detection of…”
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3
Condition assessment of the buried utility service infrastructure
Published in Tunnelling and underground space technology (01-03-2012)“…► We review the technologies for condition assessment of underground utilities. ► We concentrate on the assessment of water and sewage pipelines. ► We compare…”
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4
Radioisotopic battery and capacitor system for powering Wireless Sensor Networks
Published in Sensors and actuators. A. Physical. (01-12-2013)“…•A power source for a Wireless Sensor Network (WSN) was developed.•The power source was an indirect conversion radioisotopic battery & capacitor system.•The…”
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5
Underground asset location and condition assessment technologies
Published in Tunnelling and underground space technology (01-09-2007)“…Beneath the surface of cities worldwide lies an extensive and complex network of pipes and cables providing the essential utility services that underpin modern…”
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ASSESSING THE CONDITION OF BURIED PIPE USING GROUND PENETRATING RADAR (GPR)
Published in International archives of the photogrammetry, remote sensing and spatial information sciences. (26-10-2018)“…The invention of Ground Penetrating Radar (GPR) technology has facilitated the possibility of detecting buried utilities and has been used primarily in civil…”
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Journal Article Conference Proceeding -
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Pedestrian comfort using clothing values and body temperatures
Published in Journal of wind engineering and industrial aerodynamics (01-04-2008)“…Outdoor human comfort in an urban environment may be affected by a wide range of weather and human factors. The paper describes a research study investigating…”
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Factors affecting soil permittivity and proposals to obtain gravimetric water content from time domain reflectometry measurements
Published in Canadian geotechnical journal (01-11-2014)“…Time domain reflectometry (TDR) measures the apparent relative dielectric permittivity (ARDP) of a soil and is commonly used to determine the volumetric water…”
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Mapping the Underworld – State-of-the-art review
Published in Tunnelling and underground space technology (01-09-2007)“…A major UK initiative, entitled Mapping the Underworld (MTU), is seeking to address the serious social, environmental and economic consequences arising from an…”
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10
Condition assessment of the surface and buried infrastructure – A proposal for integration
Published in Tunnelling and underground space technology (01-03-2012)“…The surface urban transport infrastructures, which are interpreted widely herein to encompass roads, cycle ways, pedestrian areas and railway foundations, are…”
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Real time condition monitoring of buried water pipes
Published in Tunnelling and underground space technology (01-03-2012)“…► Identification of potential power sources which can be used in the underground infrastructure environment. ► Development of an initial radioisotopic…”
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12
Observing mathematics teaching in three different countries—lessons learnt?
Published in Teaching mathematics and its applications (01-09-2007)“…It has been reported that the students’ level of mathematics when entering university has changed in recent years. A surprising number of students struggle…”
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Stakeholder needs for ground penetrating radar utility location
Published in Journal of applied geophysics (01-04-2009)“…In the UK alone there are millions of miles of underground utilities with often inaccurate, incomplete, or non-existent location records that cause significant…”
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Journal Article Conference Proceeding -
14
An Optical Fiber Sensor System for Remote Displacement Monitoring of Structures — Prototype Tests in the Laboratory
Published in Structural health monitoring (01-03-2008)“…This study describes a new optical fiber monitoring system to measure structural displacements. The underlying concept is based on a square fiberglass `Smart…”
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Electromagnetic properties of the ground: Part II – The properties of two selected fine-grained soils
Published in Tunnelling and underground space technology (01-12-2010)“…In Part I of this paper it was established that electromagnetic signal velocities, for instance as used in ground penetrating radar use, are related to the…”
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16
Electromagnetic properties of the ground: Part I – Fine-grained soils at the Liquid Limit
Published in Tunnelling and underground space technology (01-12-2010)“…Knowledge of the geotechnical properties of soils when engineering shallow underground spaces is of obvious importance, as it provides information, for…”
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17
Measurement and prediction of wave-generated suborbital ripples
Published in Journal of Geophysical Research - Oceans (01-02-2004)“…Experiments in a large‐scale wave flume using regular and irregular waves with periods between 4 s and 6 s and heights between 0.2 m and 1.55 m have examined…”
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18
Sand suspension by vortex pairing
Published in Geophysical research letters (01-08-2007)“…In studies of oscillatory flow above rippled beds, appreciable quantities of suspended sediment are reported up to 10 ripple heights,ηR, above the bed. The…”
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Broadband Apparent Permittivity Measurement in Dispersive Soils Using Quarter‐Wavelength Analysis
Published in Soil Science Society of America journal (01-09-2008)“…Time‐domain reflectometry (TDR) has, since the early 1980s, become a widely used and robust method for measuring the electromagnetic properties of soils…”
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20
Seeing through the Ground : The Potential of Gravity Gradient as a Complementary Technology
Published in Advances in civil engineering (01-01-2011)“…In the UK there is a huge legacy of buried utility service pipelines and cables beneath our streets and new services, such as fibre optic cables, are being…”
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