[PDF] Top 20 The measurement of lubricant-film thickness using ultrasound
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The measurement of lubricant-film thickness using ultrasound
... Re®ected pulses were recorded from the disc{ball interface as the ball rotational speed and load were varied. A reference spectrum was obtained by recording the pulse re®ected when the ball was out of contact with the ... See full document
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Measurement of Intima Media Thickness of Common Carotid Arteries Using Ultrasound in Patients with Familial and Non Familial Hypercholesterolaemia and Correlation of Intima Media Thickness to Obesity
... Measurement of Intima Media Thickness of Common Carotid Arteries Using Ultrasound in Patients with Familial and Non Familial Hypercholesterolaemia and Correlation of Intima Media Thickness to Obesity[.] ... See full document
6
Acoustic measurement of lubricant-film thickness distribution in ball bearings
... if lubricant film thickness measurement accuracy of 2 % is required, the experimental data should be only captured when the angle of slope of the lubricated contact region is less than ...the ... See full document
22
Transvaginal Ultrasound measurement of endometrial thickness as a biomarker of estrogen level in postmenopausal women
... a measurement of ...about using transvaginal ultrasound as the sole method of evaluating endometrial pathology when focusing only on endometrial ... See full document
81
Ultrasound for the non-invasive measurement of IC engine piston skirt lubricant films
... of using ultrasound to measure fluid film thickness has been documented in a number of art- icles 4–6 and a preliminary application of the technique to engine oil film measurements can be found in the ... See full document
11
Auto-calibration of ultrasonic lubricant-film thickness measurements
... For the purposes of the analysis, the layer can be a film of elastic homogenous material (liquid or solid) between two solid bodies, or a region of reduced stiffness, for example a rough surface contact. This ... See full document
19
Diagnostic Ultrasound in the Measurement of Cortical Bone Thickness in Porcine Mandibular Specimens
... Radiopaque metal markers could have possibly been placed in the samples prior to µ-CT but they would have had to have been placed a certain distance away from the points of interest because of their potential beam ... See full document
74
Growth Hormone Therapy, Muscle Thickness, and Motor Development in Prader-Willi Syndrome: An RCT
... we shortened the control period to 6 months on ethical grounds. An extra measurement 3 months after baseline was added to provide 3 measurements in the control condition (Fig 1). During the 2-year study period, ... See full document
11
Reliability and validity of ultrasound imaging of features of knee osteoarthritis in the community
... of ultrasound in OA and other arthri- tides. Ultrasound compared well with MRI in the assessment of femoral condylar cartilage, effusion and synovial thickening in a study of 58 patients with sympto- matic ... See full document
8
Ultrasonic oil-film thickness measurement: An angular spectrum approach to assess performance limits
... VG5 oil has the lowest viscosity of the three oils tested and so resulted in the thinnest oil films (and therefore the lowest reflection coefficients). The calibration approach described above has then been applied to ... See full document
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Piezoelectric sensors to monitor lubricant film thickness at piston-cylinder contacts in a fired engine
... the film may be under-measured as an increased bulk modulus for a constant film thickness will increase the propensity for the ultrasound pulse to be transmitted through the contact and will ... See full document
12
Viscosity Measurement in a Lubricant Film Using an Ultrasonically Resonating Matching Layer
... little ultrasound energy can propagate into the oil at a metal‐oil interface because the acoustic mismatch is great, and this leads to large measurement ...viscosity measurement is frequency ... See full document
20
Monitoring of lubricant film failure in a ball bearing using ultrasound
... the lubricant-layer, an identical procedure was used for each ...the lubricant feed after 3 monitoring cycles ...the lubricant-oil was ...the measurement ‘noise’ and corresponds to a 4% ... See full document
33
Comparison of the precision of the Topcon SP-3000P specular microscope and an ultrasound pachymeter
... For the NCSM, CCT measurements were obtained using the automatic image capture, low-intensity mode of the specular microscope. Subjects were required to fixate on the central target, with chin on the chin rest and ... See full document
6
Operating limits for acoustic measurement of rolling bearing oil film thickness
... the film thickness is assumed then the bulk modulus is ...bearing film measurements, the relationship between bulk modulus and pressure could be determined by this method and an appropriate value ... See full document
19
Operating Limits for Acoustic Measurement of Rolling Bearing Oil Film Thickness
... of film thickness in steady-state Newtonian EHL smooth surface ...non-Newtonian lubricant behavior. The most flexible methods for EHL film thickness measurements have been by optical ... See full document
11
Ultrasonic Measurement for Film Thickness and Solid Contact in Elastohydrodynamic Lubrication
... liquid film stiffness was calculated by using a predicted film thickness and a bulk modulus estimated from published rheological models of lubricants under high ...predicted using a ... See full document
26
The effect of thickness on ZnO thin film CO gas sensor
... were using to deposited ZnO thin films onto corning substrates as a CO gas ...thin film thickness on CO gas was investigated. The film thickness was varied by controlling the deposition ... See full document
8
Side-chain influence on the mass density and refractive index of polyfluorenes and star-shaped oligofluorene truxenes
... surface profilometer and then the film is dissolved in a solvent. The absorbance of the resulting solution is compared against standards of the same material to determine the mass. The method is simple but has ... See full document
17
Evaluation of dry film lubricant using deep drawing test
... KAJIAN LITERATUR 2.1 Pengenalan 2.2 Ujian Penarikan dalam 2.2.1 Perubahan bentuk plastik 2.2.2 Parameter penarikan dalam 2.2.3 Anisotropi 2.2.4 Ketinggian cawan silinder 2.3 Keluli kekua[r] ... See full document
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