Results 21 to 30 of about 224,379 (314)
Liquid flow measurement using silicone polymer wedge clamp-on ultrasonic transducers [PDF]
, 2019 Accurate liquid flow measurement is vital to many industries, and the benefits and limitations of ultrasonic transit-time clamp-on measurements are well understood.
Dixon, Steve M. +4 more
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Irradiation testing of ultrasonic transducers [PDF]
2013 3rd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA), 2013 Ultrasonic technologies offer the potential for high accuracy and resolution in-pile measurement of numerous parameters, including geometry changes, temperature, crack initiation and growth, gas pressure and composition, and microstructural changes. Many Department of Energy-Office of Nuclear Energy (DOE-NE) programs are exploring the use of ultrasonic
J. Daw +9 more
openaire +1 more source
Impact of Wetting–Drying Cycles on the Mechanical Properties and Microstructure of Wood Waste–Gypsum Composites [PDF]
, 2019 Large amounts of wood waste are generated each year in the world. In an attempt to identify a good recovery option for those residues, wood waste from construction and demolition works were used as raw materials in gypsum plasters.
Morales Conde, María Jesús +3 more
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Using Support Vector Machine to Improve Ultrasonic Pulse Velocity Test for Concrete
MATEC Web of Conferences, 2018 In the construction industry, to evaluate the compressive strength of concrete, destructive and non-destructive testing methods are used. Non-destructive testing methods are preferable due to the fact that those methods do not destroy concrete samples ...
Loan Ngo Tu Quynh, Wang Yu-Ren
doaj +1 more source
Buildings, 2022 Ultrasonic testing can be used for a nondestructive and rapid determination of material properties. In this study, twelve asphalt mixture samples of four different types were fabricated and used in conventional material property tests and two ultrasonic ...
Shuguang Hou +4 more
doaj +1 more source
Comparison between two ultrasonic methods in their ability to monitor the setting process of cement pastes [PDF]
, 2009 This paper presents the comparison between ultrasonic wave transmission (USWT) method and ultrasonic wave reflection (USWR) method in their ability to monitor the setting process of cement pastes.
Akkaya +23 more
core +2 more sources
Ultrasonic evaluation of high voltage circuit boards [PDF]
Preliminary observations indicate that an ultrasonic scanning technique may be useful as a quick, low cost, nondestructive method for judging the quality of circuit board materials for high voltage applications.
Klima, S. J., Riley, T. J.
core +2 more sources
Oil film measurement in polytetrafluoroethylene-faced thrust pad bearings for hydrogenerator applications [PDF]
, 2006 There is a growing trend in the replacement of the babbit facing in thrust pad bearings with a composite polytetrafluoroethylene (PTFE) surface layer. The PTFE-faced bearings have been shown to allow a greater specific pressure, reduce thermal crowning ...
Drinkwater, B.W. +3 more
core +1 more source
e-Journal of Nondestructive TestingStructural diagnostics of buildings require optimization of investigation methods to minimize invasiveness, save time, and reduce costs. In this view, non-destructive tests, such as ultrasonic and sonic tests, are essential tools. However, it is crucial
Giuseppe Marghella +9 more
doaj +1 more source
Case Studies in Construction Materials, 2022 To further understand the mechanical properties and anisotropy characteristics of 3D printing PVA fiber reinforced concrete (PFRC). This study first obtained 3D printing PFRC mixes with superior mechanical properties through slump tests, penetration ...
Bing Liu +6 more
doaj +1 more source