Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Kmax"”.
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CONFRONTO DEI RISULTATI VISIVI E TOPOGRAFICI IN PAZIENTI CON CHERATOCONO SOTTOPOSTI A CROSS-LINKING CORNEALE: TECNICA TRADIZIONALE Vs TRANSEPITELIALE
… standard dopo 6 mesi si dimostra riduzione del Kmax di 2 D e aumento visus di 3/10. Complicanze: 4 casi haze transitorio a 2 mesi risolto con steroidi topici. 36 con CCL transepiteliale, incremento visus di 5/10 e riduzione Kmax di 4 D e no complicanze significative. Conclusioni.CCL …
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Hydrogen degradation and microstructural effects of the near-threshold fatigue resistance of pressure vessel steels
… intensities near-threshold [delta]K₀ ([delta]K = Kmax - Kmin), water vapor in the environment was found to produce a pronounced effect on the fatigue resistance for partial pressures as low as 10 torr. In 2 1/4Cr-1%Mo SA378-2-22 steel the crack propagation rates at high load ratio (R = Kmin-Kmax) …
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Outcomes of corneal crosslinking for the treatment of keratoconus at a tertiary South African hospital
… being statistically significant. The median Kmax value decreased from 57.7D to 55.9D. The mean Kmax value decreased from 59.46D to 58.85D (p = 0.137). The mean Kmean anterior increased from 50.26D to 50.86D (p = 0.139), the mean Kmean posterior from -7.48D to -7.67D (p = 0.026). There was a …
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The Effects of Load Ratio on Threshold Fatigue Crack Growth of Aluminum Alloys
… cracks. Tip contact is more likely for high Kmax levels, thick oxide layers, and shallow asperity angles, a. Model results indicate that closure mechanisms combine in a synergistic manner. That is, when multiple closure mechanisms are active, the total closure level is greater than the sum of …
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MECHANISTIC STUDY OF CRACK INITIATION AND PROPAGATION IN CROSSLINKED ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENES (UHMWPE) SUBJECTED TO STATIC AND CYCLIC LOADING
… UHMWPE is driven by peak stress intensity (Kmax) in a loading cycle. The findings suggest that stable crack propagation can occur in a static mode rather than in a cyclic mode. Crack initiation from a notch under fatigue conditions is also investigated for remelted 100 kGy material and …
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Validation and Application of a First Principle Flotation Model
… by those for fully liberated particles (kmax), which opens the door for minimizing the number of flotation products that need to be analyzed using a costly and time-consuming liberation analyzer. A bubble coarsening froth model has been incorporated into the flotation model to predict …
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Higher Order Couplings in the Clustering of Biased Tracers of Large-Scale Structure
… that the results agree with simulations up to kmax = 0.1h Mpc 1 once an additional derivative bias is implemented (Published in: Abidi & Baldauf, JCAP07(2018)029). In the second part, we develop a formalism to reconstruct the linear density field based on quadratic couplings in galaxy …
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Investigation of Severe Abrasive Truck Tyre Wear
… project, a conventional trailer tyre, Goodyear KMax T Gen 2, and a low-rolling-resistance trailer tyre, Goodyear FuelMax T, are studied and compared. In Chapter 2, a tyre wear model is developed by combining physical models of tyre rolling contact, including the ‘brush’ model and the ‘string’ …