Results 81 to 90 of about 626,864 (199)
Speckle reference beam holographic and speckle photographic interferometry in non-destructive test systems [PDF]
The techniques of speckle beam holographic interferometry and speckle photographic interferometry are described. In particular, their practical limitations and their applications to the existing holographic nondestructive test system are ...
Liu, H. K.
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A comparison study on different NDT techniques used for testing bond quality in cold roll bonded AlSn alloy/steel bimetal strips [PDF]
, 2017 This paper presents non-destructive testing (NDT) results for the detection of bond defects in aluminium-tin (Al-Sn) alloy/steel bimetal strips. Among all types of bimetal strip that are used in the automotive industry for plain journal engine bearings ...
Campbell, Sylvia +2 more
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Acoustic Properties of Wood-Based and Non-Wood-Based Materials for Piano-Case Making
Drvna IndustrijaThis article presents the possibilities of substituting expensive and scarce wood materials in the construction of piano cases, especially the front panels of upright pianos.
Petr Zatloukal +2 more
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Common Medieval Pigments [PDF]
, 2004 This paper discusses the pigments used in medieval manuscripts. Specific types of pigments that are examined are earths, minerals, manufactured, and organics.
Baker, A
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Endurance and failure characteristics of main-shaft jet engine bearings at 3x10 to the 6th power DN [PDF]
Groups of thirty 120-mm bore angular contact ball bearings were endurance tested at a speed of 12,000 and 25,000 rpm and a thrust load of 66 721 N. The bearings were manufactured from a single heat of VIM-VAR AISI M-50 steel.
Bamberger, E. N. +2 more
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Acoustic emission frequency discrimination [PDF]
, 1988 In acoustic emission nondestructive testing, broadband frequency noise is distinguished from narrow banded acoustic emission signals, since the latter are valid events indicative of structural flaws in the material being examined. This is accomplished by
Graham, Lloyd J., Sugg, Frank E.
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Spatial description of concrete characteristics [PDF]
, 2016 This work has the objective to simulate the variation of the compressive resistance strength of concrete along the height of a structural member. The concrete compressive strength is calculated with a formula, which has been previously analysed.
Sánchez Salomó, Francesc Xavier
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Probe penetration test applied for evaluating shotcrete compressive strength
Revista IBRACON de Estruturas e MateriaisThis study presents a methodology for evaluating shotcrete compressive strength. Because of the high surface roughness and low thickness of the concrete layer observed in shotcrete structures, the proposed methodology is based on the probe penetration ...
W. R. L. da Silva +2 more
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An Approach to Assess Solder Interconnect Degradation Using Digital Signal [PDF]
, 2016 Department of Human and Systems EngineeringDigital signals used in electronic systems require reliable data communication. It is necessary to monitor the system health continuously to prevent system failure in advance.
Yoon, Jeong-ah
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